bc: Vendor import new version 3.3.3
This commit is contained in:
Stefan Eßer
parent
88832d59de
commit
028616d0dd
@ -29,7 +29,7 @@
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#
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.POSIX:
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VERSION = 3.3.0
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VERSION = 3.3.3
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SRC = %%SRC%%
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OBJ = %%OBJ%%
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@ -1,5 +1,31 @@
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# News
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## 3.3.3
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This is a production release with one tweak and fixes for manuals.
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The tweak is that `length(0)` returns `1` instead of `0`. In `3.3.1`, I changed
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it so `length(0.x)`, where `x` could be any number of digits, returned the
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`scale`, but `length(0)` still returned `0` because I believe that `0` has `0`
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significant digits.
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After request of FreeBSD and considering the arguments of a mathematician,
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compatibility with other `bc`'s, and the expectations of users, I decided to
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make the change.
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The fixes for manuals fixed a bug where `--` was rendered as `-`.
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## 3.3.2
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This is a production release that fixes a divide-by-zero bug in `root()` in the
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[extended math library][16]. All previous versions with `root()` have the bug.
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## 3.3.1
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This is a production release that fixes a bug.
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The bug was in the reporting of number length when the value was 0.
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## 3.3.0
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This is a production release that changes one behavior and fixes documentation
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@ -110,7 +110,7 @@ define root(x,n){
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if(n<0)sqrt(n)
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n=n$
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if(n==0)x/n
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if(n==1)return x
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if(x==0||n==1)return x
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if(n==2)return sqrt(x)
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s=scale
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scale=0
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@ -121,20 +121,20 @@ def run(cmd, env=None):
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p = run([ "make", "clean" ])
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print("Testing \"make -j4\"")
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print("Testing \"make -j12\"")
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if p.returncode != 0:
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print("make returned an error ({}); exiting...".format(p.returncode))
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sys.exit(p.returncode)
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p = run([ "make", "-j4" ])
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p = run([ "make", "-j12" ])
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if p.returncode == 0:
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makecmd = [ "make", "-j4" ]
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print("Using \"make -j4\"")
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makecmd = [ "make", "-j12" ]
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print("Using \"make -j12\"")
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else:
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makecmd = [ "make" ]
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print("Not using \"make -j4\"")
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print("Not using \"make -j12\"")
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if test_num != 0:
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mx2 = test_num
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@ -34,8 +34,7 @@ bc - arbitrary-precision decimal arithmetic language and calculator
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# SYNOPSIS
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**bc** [**-ghilPqsvVw**] [**--global-stacks**] [**--help**] [**--interactive**] [**--mathlib**] [**--no-prompt**] [**--quiet**] [**--standard**] [**--warn**] [**--version**] [**-e** *expr*] [**--expression**=*expr*...] [**-f** *file*...] [**-file**=*file*...]
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[*file*...]
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**bc** [**-ghilPqsvVw**] [**-\-global-stacks**] [**-\-help**] [**-\-interactive**] [**-\-mathlib**] [**-\-no-prompt**] [**-\-quiet**] [**-\-standard**] [**-\-warn**] [**-\-version**] [**-e** *expr*] [**-\-expression**=*expr*...] [**-f** *file*...] [**-\-file**=*file*...] [*file*...]
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# DESCRIPTION
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@ -61,7 +60,7 @@ especially) the GNU bc(1).
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The following are the options that bc(1) accepts.
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**-g**, **--global-stacks**
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**-g**, **-\-global-stacks**
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{{ A H N P HN HP NP HNP }}
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: Turns the globals **ibase**, **obase**, **scale**, and **seed** into stacks.
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@ -152,17 +151,17 @@ The following are the options that bc(1) accepts.
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This is a **non-portable extension**.
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**-h**, **--help**
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**-h**, **-\-help**
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: Prints a usage message and quits.
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**-i**, **--interactive**
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**-i**, **-\-interactive**
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: Forces interactive mode. (See the **INTERACTIVE MODE** section.)
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This is a **non-portable extension**.
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**-l**, **--mathlib**
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**-l**, **-\-mathlib**
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: Sets **scale** (see the **SYNTAX** section) to **20** and loads the included
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{{ A H N P HN HP NP HNP }}
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@ -178,7 +177,7 @@ The following are the options that bc(1) accepts.
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To learn what is in the library, see the **LIBRARY** section.
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{{ end }}
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**-P**, **--no-prompt**
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**-P**, **-\-no-prompt**
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{{ A E H N EH EN HN EHN }}
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: Disables the prompt in TTY mode. (The prompt is only enabled in TTY mode.
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@ -193,36 +192,36 @@ The following are the options that bc(1) accepts.
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This is a **non-portable extension**.
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**-q**, **--quiet**
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**-q**, **-\-quiet**
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: This option is for compatibility with the [GNU bc(1)][2]; it is a no-op.
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Without this option, GNU bc(1) prints a copyright header. This bc(1) only
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prints the copyright header if one or more of the **-v**, **-V**, or
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**--version** options are given.
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**-\-version** options are given.
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This is a **non-portable extension**.
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**-s**, **--standard**
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**-s**, **-\-standard**
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: Process exactly the language defined by the [standard][1] and error if any
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extensions are used.
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This is a **non-portable extension**.
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**-v**, **-V**, **--version**
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**-v**, **-V**, **-\-version**
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: Print the version information (copyright header) and exit.
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This is a **non-portable extension**.
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**-w**, **--warn**
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**-w**, **-\-warn**
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: Like **-s** and **--standard**, except that warnings (and not errors) are
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: Like **-s** and **-\-standard**, except that warnings (and not errors) are
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printed for non-standard extensions and execution continues normally.
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This is a **non-portable extension**.
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**-e** *expr*, **--expression**=*expr*
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**-e** *expr*, **-\-expression**=*expr*
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: Evaluates *expr*. If multiple expressions are given, they are evaluated in
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order. If files are given as well (see below), the expressions and files are
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@ -232,14 +231,14 @@ The following are the options that bc(1) accepts.
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If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
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see the **ENVIRONMENT VARIABLES** section), then after processing all
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expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
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as an argument at least once to **-f** or **--file**, whether on the
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as an argument at least once to **-f** or **-\-file**, whether on the
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command-line or in **BC_ENV_ARGS**. However, if any other **-e**,
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**--expression**, **-f**, or **--file** arguments are given after **-f-** or
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equivalent is given, bc(1) will give a fatal error and exit.
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**-\-expression**, **-f**, or **-\-file** arguments are given after **-f-**
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or equivalent is given, bc(1) will give a fatal error and exit.
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This is a **non-portable extension**.
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**-f** *file*, **--file**=*file*
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**-f** *file*, **-\-file**=*file*
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: Reads in *file* and evaluates it, line by line, as though it were read
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through **stdin**. If expressions are also given (see above), the
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@ -248,8 +247,8 @@ The following are the options that bc(1) accepts.
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If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
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see the **ENVIRONMENT VARIABLES** section), then after processing all
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expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
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as an argument at least once to **-f** or **--file**. However, if any other
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**-e**, **--expression**, **-f**, or **--file** arguments are given after
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as an argument at least once to **-f** or **-\-file**. However, if any other
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**-e**, **-\-expression**, **-f**, or **-\-file** arguments are given after
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**-f-** or equivalent is given, bc(1) will give a fatal error and exit.
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This is a **non-portable extension**.
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@ -304,8 +303,8 @@ Identifiers with more than one character (letter) are a
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**ibase** is a global variable determining how to interpret constant numbers. It
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is the "input" base, or the number base used for interpreting input numbers.
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**ibase** is initially **10**. If the **-s** (**--standard**) and **-w**
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(**--warn**) flags were not given on the command line, the max allowable value
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**ibase** is initially **10**. If the **-s** (**-\-standard**) and **-w**
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(**-\-warn**) flags were not given on the command line, the max allowable value
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for **ibase** is **36**. Otherwise, it is **16**. The min allowable value for
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**ibase** is **2**. The max allowable value for **ibase** can be queried in
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bc(1) programs with the **maxibase()** built-in function.
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@ -512,7 +511,7 @@ The following arithmetic and logical operators can be used. They are listed in
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order of decreasing precedence. Operators in the same group have the same
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precedence.
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**++** **--**
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**++** **-\-**
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: Type: Prefix and Postfix
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@ -617,7 +616,7 @@ precedence.
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The operators will be described in more detail below.
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**++** **--**
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**++** **-\-**
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: The prefix and postfix **increment** and **decrement** operators behave
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exactly like they would in C. They require a named expression (see the
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@ -962,12 +961,12 @@ This is a **non-portable extension**.
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{{ A H N P HN HP NP HNP }}
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All of the functions below, including the functions in the extended math
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library (see the *Extended Library* subsection below), are available when the
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**-l** or **--mathlib** command-line flags are given, except that the extended
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**-l** or **-\-mathlib** command-line flags are given, except that the extended
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math library is not available when the **-s** option, the **-w** option, or
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equivalents are given.
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{{ end }}
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{{ E EH EN EP EHN EHP ENP EHNP }}
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All of the functions below are available when the **-l** or **--mathlib**
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All of the functions below are available when the **-l** or **-\-mathlib**
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command-line flags are given.
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{{ end }}
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@ -1020,8 +1019,8 @@ The [standard][1] defines the following functions for the math library:
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{{ A H N P HN HP NP HNP }}
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## Extended Library
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The extended library is *not* loaded when the **-s**/**--standard** or
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**-w**/**--warn** options are given since they are not part of the library
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The extended library is *not* loaded when the **-s**/**-\-standard** or
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**-w**/**-\-warn** options are given since they are not part of the library
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defined by the [standard][1].
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The extended library is a **non-portable extension**.
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@ -1705,17 +1704,17 @@ The other statuses will only be returned when bc(1) is not in interactive mode
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(see the **INTERACTIVE MODE** section), since bc(1) resets its state (see the
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**RESET** section) and accepts more input when one of those errors occurs in
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interactive mode. This is also the case when interactive mode is forced by the
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**-i** flag or **--interactive** option.
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**-i** flag or **-\-interactive** option.
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These exit statuses allow bc(1) to be used in shell scripting with error
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checking, and its normal behavior can be forced by using the **-i** flag or
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**--interactive** option.
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**-\-interactive** option.
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# INTERACTIVE MODE
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Per the [standard][1], bc(1) has an interactive mode and a non-interactive mode.
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Interactive mode is turned on automatically when both **stdin** and **stdout**
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are hooked to a terminal, but the **-i** flag and **--interactive** option can
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are hooked to a terminal, but the **-i** flag and **-\-interactive** option can
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turn it on in other cases.
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In interactive mode, bc(1) attempts to recover from errors (see the **RESET**
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@ -25,19 +25,18 @@
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.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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.\" POSSIBILITY OF SUCH DAMAGE.
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.\"
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.TH "BC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
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.TH "BC" "1" "March 2021" "Gavin D. Howard" "General Commands Manual"
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.SH NAME
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.PP
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bc - arbitrary-precision decimal arithmetic language and calculator
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.SH SYNOPSIS
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.PP
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\f[B]bc\f[R] [\f[B]-ghilPqsvVw\f[R]] [\f[B]\[en]global-stacks\f[R]]
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[\f[B]\[en]help\f[R]] [\f[B]\[en]interactive\f[R]]
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[\f[B]\[en]mathlib\f[R]] [\f[B]\[en]no-prompt\f[R]]
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[\f[B]\[en]quiet\f[R]] [\f[B]\[en]standard\f[R]] [\f[B]\[en]warn\f[R]]
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[\f[B]\[en]version\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
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[\f[B]\[en]expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
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\f[I]file\f[R]\&...] [\f[B]-file\f[R]=\f[I]file\f[R]\&...]
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\f[B]bc\f[R] [\f[B]-ghilPqsvVw\f[R]] [\f[B]--global-stacks\f[R]]
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[\f[B]--help\f[R]] [\f[B]--interactive\f[R]] [\f[B]--mathlib\f[R]]
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[\f[B]--no-prompt\f[R]] [\f[B]--quiet\f[R]] [\f[B]--standard\f[R]]
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[\f[B]--warn\f[R]] [\f[B]--version\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
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[\f[B]--expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
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\f[I]file\f[R]\&...] [\f[B]--file\f[R]=\f[I]file\f[R]\&...]
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[\f[I]file\f[R]\&...]
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.SH DESCRIPTION
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.PP
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@ -60,7 +59,7 @@ implementations.
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.PP
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The following are the options that bc(1) accepts.
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.TP
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\f[B]-g\f[R], \f[B]\[en]global-stacks\f[R]
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\f[B]-g\f[R], \f[B]--global-stacks\f[R]
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Turns the globals \f[B]ibase\f[R], \f[B]obase\f[R], \f[B]scale\f[R], and
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\f[B]seed\f[R] into stacks.
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.RS
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@ -152,10 +151,10 @@ is ignored.
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This is a \f[B]non-portable extension\f[R].
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.RE
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.TP
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\f[B]-h\f[R], \f[B]\[en]help\f[R]
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\f[B]-h\f[R], \f[B]--help\f[R]
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Prints a usage message and quits.
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.TP
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\f[B]-i\f[R], \f[B]\[en]interactive\f[R]
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\f[B]-i\f[R], \f[B]--interactive\f[R]
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Forces interactive mode.
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(See the \f[B]INTERACTIVE MODE\f[R] section.)
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.RS
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@ -163,7 +162,7 @@ Forces interactive mode.
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This is a \f[B]non-portable extension\f[R].
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.RE
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.TP
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\f[B]-l\f[R], \f[B]\[en]mathlib\f[R]
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\f[B]-l\f[R], \f[B]--mathlib\f[R]
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Sets \f[B]scale\f[R] (see the \f[B]SYNTAX\f[R] section) to \f[B]20\f[R]
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and loads the included math library and the extended math library before
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running any code, including any expressions or files specified on the
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@ -173,7 +172,7 @@ command line.
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To learn what is in the libraries, see the \f[B]LIBRARY\f[R] section.
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.RE
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.TP
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\f[B]-P\f[R], \f[B]\[en]no-prompt\f[R]
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\f[B]-P\f[R], \f[B]--no-prompt\f[R]
|
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Disables the prompt in TTY mode.
|
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(The prompt is only enabled in TTY mode.
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See the \f[B]TTY MODE\f[R] section) This is mostly for those users that
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@ -185,18 +184,18 @@ Most of those users would want to put this option in
|
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This is a \f[B]non-portable extension\f[R].
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.RE
|
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.TP
|
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\f[B]-q\f[R], \f[B]\[en]quiet\f[R]
|
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\f[B]-q\f[R], \f[B]--quiet\f[R]
|
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This option is for compatibility with the GNU
|
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bc(1) (https://www.gnu.org/software/bc/); it is a no-op.
|
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Without this option, GNU bc(1) prints a copyright header.
|
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This bc(1) only prints the copyright header if one or more of the
|
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\f[B]-v\f[R], \f[B]-V\f[R], or \f[B]\[en]version\f[R] options are given.
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\f[B]-v\f[R], \f[B]-V\f[R], or \f[B]--version\f[R] options are given.
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.RS
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.PP
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This is a \f[B]non-portable extension\f[R].
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.RE
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.TP
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\f[B]-s\f[R], \f[B]\[en]standard\f[R]
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\f[B]-s\f[R], \f[B]--standard\f[R]
|
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Process exactly the language defined by the
|
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standard (https://pubs.opengroup.org/onlinepubs/9699919799/utilities/bc.html)
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and error if any extensions are used.
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@ -205,15 +204,15 @@ and error if any extensions are used.
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This is a \f[B]non-portable extension\f[R].
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.RE
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.TP
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\f[B]-v\f[R], \f[B]-V\f[R], \f[B]\[en]version\f[R]
|
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\f[B]-v\f[R], \f[B]-V\f[R], \f[B]--version\f[R]
|
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Print the version information (copyright header) and exit.
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.RS
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.PP
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||||
This is a \f[B]non-portable extension\f[R].
|
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.RE
|
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.TP
|
||||
\f[B]-w\f[R], \f[B]\[en]warn\f[R]
|
||||
Like \f[B]-s\f[R] and \f[B]\[en]standard\f[R], except that warnings (and
|
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\f[B]-w\f[R], \f[B]--warn\f[R]
|
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Like \f[B]-s\f[R] and \f[B]--standard\f[R], except that warnings (and
|
||||
not errors) are printed for non-standard extensions and execution
|
||||
continues normally.
|
||||
.RS
|
||||
@ -221,7 +220,7 @@ continues normally.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]\[en]expression\f[R]=\f[I]expr\f[R]
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]--expression\f[R]=\f[I]expr\f[R]
|
||||
Evaluates \f[I]expr\f[R].
|
||||
If multiple expressions are given, they are evaluated in order.
|
||||
If files are given as well (see below), the expressions and files are
|
||||
@ -234,17 +233,17 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, bc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R], whether on the command-line or in
|
||||
\f[B]BC_ENV_ARGS\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]\[en]file\f[R]=\f[I]file\f[R]
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]--file\f[R]=\f[I]file\f[R]
|
||||
Reads in \f[I]file\f[R] and evaluates it, line by line, as though it
|
||||
were read through \f[B]stdin\f[R].
|
||||
If expressions are also given (see above), the expressions are evaluated
|
||||
@ -255,9 +254,9 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, bc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
@ -322,8 +321,8 @@ constant numbers.
|
||||
It is the \[lq]input\[rq] base, or the number base used for interpreting
|
||||
input numbers.
|
||||
\f[B]ibase\f[R] is initially \f[B]10\f[R].
|
||||
If the \f[B]-s\f[R] (\f[B]\[en]standard\f[R]) and \f[B]-w\f[R]
|
||||
(\f[B]\[en]warn\f[R]) flags were not given on the command line, the max
|
||||
If the \f[B]-s\f[R] (\f[B]--standard\f[R]) and \f[B]-w\f[R]
|
||||
(\f[B]--warn\f[R]) flags were not given on the command line, the max
|
||||
allowable value for \f[B]ibase\f[R] is \f[B]36\f[R].
|
||||
Otherwise, it is \f[B]16\f[R].
|
||||
The min allowable value for \f[B]ibase\f[R] is \f[B]2\f[R].
|
||||
@ -582,7 +581,7 @@ The following arithmetic and logical operators can be used.
|
||||
They are listed in order of decreasing precedence.
|
||||
Operators in the same group have the same precedence.
|
||||
.TP
|
||||
\f[B]++\f[R] \f[B]\[en]\f[R]
|
||||
\f[B]++\f[R] \f[B]--\f[R]
|
||||
Type: Prefix and Postfix
|
||||
.RS
|
||||
.PP
|
||||
@ -692,7 +691,7 @@ Description: \f[B]boolean or\f[R]
|
||||
.PP
|
||||
The operators will be described in more detail below.
|
||||
.TP
|
||||
\f[B]++\f[R] \f[B]\[en]\f[R]
|
||||
\f[B]++\f[R] \f[B]--\f[R]
|
||||
The prefix and postfix \f[B]increment\f[R] and \f[B]decrement\f[R]
|
||||
operators behave exactly like they would in C.
|
||||
They require a named expression (see the \f[I]Named Expressions\f[R]
|
||||
@ -1138,7 +1137,7 @@ This is a \f[B]non-portable extension\f[R].
|
||||
.PP
|
||||
All of the functions below, including the functions in the extended math
|
||||
library (see the \f[I]Extended Library\f[R] subsection below), are
|
||||
available when the \f[B]-l\f[R] or \f[B]\[en]mathlib\f[R] command-line
|
||||
available when the \f[B]-l\f[R] or \f[B]--mathlib\f[R] command-line
|
||||
flags are given, except that the extended math library is not available
|
||||
when the \f[B]-s\f[R] option, the \f[B]-w\f[R] option, or equivalents
|
||||
are given.
|
||||
@ -1199,7 +1198,7 @@ Functions\f[R] subsection below).
|
||||
.SS Extended Library
|
||||
.PP
|
||||
The extended library is \f[I]not\f[R] loaded when the
|
||||
\f[B]-s\f[R]/\f[B]\[en]standard\f[R] or \f[B]-w\f[R]/\f[B]\[en]warn\f[R]
|
||||
\f[B]-s\f[R]/\f[B]--standard\f[R] or \f[B]-w\f[R]/\f[B]--warn\f[R]
|
||||
options are given since they are not part of the library defined by the
|
||||
standard (https://pubs.opengroup.org/onlinepubs/9699919799/utilities/bc.html).
|
||||
.PP
|
||||
@ -1957,11 +1956,11 @@ interactive mode (see the \f[B]INTERACTIVE MODE\f[R] section), since
|
||||
bc(1) resets its state (see the \f[B]RESET\f[R] section) and accepts
|
||||
more input when one of those errors occurs in interactive mode.
|
||||
This is also the case when interactive mode is forced by the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.PP
|
||||
These exit statuses allow bc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.SH INTERACTIVE MODE
|
||||
.PP
|
||||
Per the
|
||||
@ -1969,7 +1968,7 @@ standard (https://pubs.opengroup.org/onlinepubs/9699919799/utilities/bc.html),
|
||||
bc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both \f[B]stdin\f[R]
|
||||
and \f[B]stdout\f[R] are hooked to a terminal, but the \f[B]-i\f[R] flag
|
||||
and \f[B]\[en]interactive\f[R] option can turn it on in other cases.
|
||||
and \f[B]--interactive\f[R] option can turn it on in other cases.
|
||||
.PP
|
||||
In interactive mode, bc(1) attempts to recover from errors (see the
|
||||
\f[B]RESET\f[R] section), and in normal execution, flushes
|
||||
|
||||
@ -34,8 +34,7 @@ bc - arbitrary-precision decimal arithmetic language and calculator
|
||||
|
||||
# SYNOPSIS
|
||||
|
||||
**bc** [**-ghilPqsvVw**] [**--global-stacks**] [**--help**] [**--interactive**] [**--mathlib**] [**--no-prompt**] [**--quiet**] [**--standard**] [**--warn**] [**--version**] [**-e** *expr*] [**--expression**=*expr*...] [**-f** *file*...] [**-file**=*file*...]
|
||||
[*file*...]
|
||||
**bc** [**-ghilPqsvVw**] [**-\-global-stacks**] [**-\-help**] [**-\-interactive**] [**-\-mathlib**] [**-\-no-prompt**] [**-\-quiet**] [**-\-standard**] [**-\-warn**] [**-\-version**] [**-e** *expr*] [**-\-expression**=*expr*...] [**-f** *file*...] [**-\-file**=*file*...] [*file*...]
|
||||
|
||||
# DESCRIPTION
|
||||
|
||||
@ -55,7 +54,7 @@ other implementations.
|
||||
|
||||
The following are the options that bc(1) accepts.
|
||||
|
||||
**-g**, **--global-stacks**
|
||||
**-g**, **-\-global-stacks**
|
||||
|
||||
: Turns the globals **ibase**, **obase**, **scale**, and **seed** into stacks.
|
||||
|
||||
@ -123,17 +122,17 @@ The following are the options that bc(1) accepts.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-h**, **--help**
|
||||
**-h**, **-\-help**
|
||||
|
||||
: Prints a usage message and quits.
|
||||
|
||||
**-i**, **--interactive**
|
||||
**-i**, **-\-interactive**
|
||||
|
||||
: Forces interactive mode. (See the **INTERACTIVE MODE** section.)
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-l**, **--mathlib**
|
||||
**-l**, **-\-mathlib**
|
||||
|
||||
: Sets **scale** (see the **SYNTAX** section) to **20** and loads the included
|
||||
math library and the extended math library before running any code,
|
||||
@ -141,7 +140,7 @@ The following are the options that bc(1) accepts.
|
||||
|
||||
To learn what is in the libraries, see the **LIBRARY** section.
|
||||
|
||||
**-P**, **--no-prompt**
|
||||
**-P**, **-\-no-prompt**
|
||||
|
||||
: Disables the prompt in TTY mode. (The prompt is only enabled in TTY mode.
|
||||
See the **TTY MODE** section) This is mostly for those users that do not
|
||||
@ -151,36 +150,36 @@ The following are the options that bc(1) accepts.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-q**, **--quiet**
|
||||
**-q**, **-\-quiet**
|
||||
|
||||
: This option is for compatibility with the [GNU bc(1)][2]; it is a no-op.
|
||||
Without this option, GNU bc(1) prints a copyright header. This bc(1) only
|
||||
prints the copyright header if one or more of the **-v**, **-V**, or
|
||||
**--version** options are given.
|
||||
**-\-version** options are given.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-s**, **--standard**
|
||||
**-s**, **-\-standard**
|
||||
|
||||
: Process exactly the language defined by the [standard][1] and error if any
|
||||
extensions are used.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-v**, **-V**, **--version**
|
||||
**-v**, **-V**, **-\-version**
|
||||
|
||||
: Print the version information (copyright header) and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-w**, **--warn**
|
||||
**-w**, **-\-warn**
|
||||
|
||||
: Like **-s** and **--standard**, except that warnings (and not errors) are
|
||||
: Like **-s** and **-\-standard**, except that warnings (and not errors) are
|
||||
printed for non-standard extensions and execution continues normally.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-e** *expr*, **--expression**=*expr*
|
||||
**-e** *expr*, **-\-expression**=*expr*
|
||||
|
||||
: Evaluates *expr*. If multiple expressions are given, they are evaluated in
|
||||
order. If files are given as well (see below), the expressions and files are
|
||||
@ -190,14 +189,14 @@ The following are the options that bc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**, whether on the
|
||||
as an argument at least once to **-f** or **-\-file**, whether on the
|
||||
command-line or in **BC_ENV_ARGS**. However, if any other **-e**,
|
||||
**--expression**, **-f**, or **--file** arguments are given after **-f-** or
|
||||
equivalent is given, bc(1) will give a fatal error and exit.
|
||||
**-\-expression**, **-f**, or **-\-file** arguments are given after **-f-**
|
||||
or equivalent is given, bc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-f** *file*, **--file**=*file*
|
||||
**-f** *file*, **-\-file**=*file*
|
||||
|
||||
: Reads in *file* and evaluates it, line by line, as though it were read
|
||||
through **stdin**. If expressions are also given (see above), the
|
||||
@ -206,8 +205,8 @@ The following are the options that bc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**. However, if any other
|
||||
**-e**, **--expression**, **-f**, or **--file** arguments are given after
|
||||
as an argument at least once to **-f** or **-\-file**. However, if any other
|
||||
**-e**, **-\-expression**, **-f**, or **-\-file** arguments are given after
|
||||
**-f-** or equivalent is given, bc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
@ -262,8 +261,8 @@ Identifiers with more than one character (letter) are a
|
||||
|
||||
**ibase** is a global variable determining how to interpret constant numbers. It
|
||||
is the "input" base, or the number base used for interpreting input numbers.
|
||||
**ibase** is initially **10**. If the **-s** (**--standard**) and **-w**
|
||||
(**--warn**) flags were not given on the command line, the max allowable value
|
||||
**ibase** is initially **10**. If the **-s** (**-\-standard**) and **-w**
|
||||
(**-\-warn**) flags were not given on the command line, the max allowable value
|
||||
for **ibase** is **36**. Otherwise, it is **16**. The min allowable value for
|
||||
**ibase** is **2**. The max allowable value for **ibase** can be queried in
|
||||
bc(1) programs with the **maxibase()** built-in function.
|
||||
@ -453,7 +452,7 @@ The following arithmetic and logical operators can be used. They are listed in
|
||||
order of decreasing precedence. Operators in the same group have the same
|
||||
precedence.
|
||||
|
||||
**++** **--**
|
||||
**++** **-\-**
|
||||
|
||||
: Type: Prefix and Postfix
|
||||
|
||||
@ -551,7 +550,7 @@ precedence.
|
||||
|
||||
The operators will be described in more detail below.
|
||||
|
||||
**++** **--**
|
||||
**++** **-\-**
|
||||
|
||||
: The prefix and postfix **increment** and **decrement** operators behave
|
||||
exactly like they would in C. They require a named expression (see the
|
||||
@ -882,7 +881,7 @@ This is a **non-portable extension**.
|
||||
|
||||
All of the functions below, including the functions in the extended math
|
||||
library (see the *Extended Library* subsection below), are available when the
|
||||
**-l** or **--mathlib** command-line flags are given, except that the extended
|
||||
**-l** or **-\-mathlib** command-line flags are given, except that the extended
|
||||
math library is not available when the **-s** option, the **-w** option, or
|
||||
equivalents are given.
|
||||
|
||||
@ -934,8 +933,8 @@ The [standard][1] defines the following functions for the math library:
|
||||
|
||||
## Extended Library
|
||||
|
||||
The extended library is *not* loaded when the **-s**/**--standard** or
|
||||
**-w**/**--warn** options are given since they are not part of the library
|
||||
The extended library is *not* loaded when the **-s**/**-\-standard** or
|
||||
**-w**/**-\-warn** options are given since they are not part of the library
|
||||
defined by the [standard][1].
|
||||
|
||||
The extended library is a **non-portable extension**.
|
||||
@ -1603,17 +1602,17 @@ The other statuses will only be returned when bc(1) is not in interactive mode
|
||||
(see the **INTERACTIVE MODE** section), since bc(1) resets its state (see the
|
||||
**RESET** section) and accepts more input when one of those errors occurs in
|
||||
interactive mode. This is also the case when interactive mode is forced by the
|
||||
**-i** flag or **--interactive** option.
|
||||
**-i** flag or **-\-interactive** option.
|
||||
|
||||
These exit statuses allow bc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the **-i** flag or
|
||||
**--interactive** option.
|
||||
**-\-interactive** option.
|
||||
|
||||
# INTERACTIVE MODE
|
||||
|
||||
Per the [standard][1], bc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both **stdin** and **stdout**
|
||||
are hooked to a terminal, but the **-i** flag and **--interactive** option can
|
||||
are hooked to a terminal, but the **-i** flag and **-\-interactive** option can
|
||||
turn it on in other cases.
|
||||
|
||||
In interactive mode, bc(1) attempts to recover from errors (see the **RESET**
|
||||
|
||||
@ -25,19 +25,18 @@
|
||||
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
.\" POSSIBILITY OF SUCH DAMAGE.
|
||||
.\"
|
||||
.TH "BC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.TH "BC" "1" "March 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.SH NAME
|
||||
.PP
|
||||
bc - arbitrary-precision decimal arithmetic language and calculator
|
||||
.SH SYNOPSIS
|
||||
.PP
|
||||
\f[B]bc\f[R] [\f[B]-ghilPqsvVw\f[R]] [\f[B]\[en]global-stacks\f[R]]
|
||||
[\f[B]\[en]help\f[R]] [\f[B]\[en]interactive\f[R]]
|
||||
[\f[B]\[en]mathlib\f[R]] [\f[B]\[en]no-prompt\f[R]]
|
||||
[\f[B]\[en]quiet\f[R]] [\f[B]\[en]standard\f[R]] [\f[B]\[en]warn\f[R]]
|
||||
[\f[B]\[en]version\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]\[en]expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]-file\f[R]=\f[I]file\f[R]\&...]
|
||||
\f[B]bc\f[R] [\f[B]-ghilPqsvVw\f[R]] [\f[B]--global-stacks\f[R]]
|
||||
[\f[B]--help\f[R]] [\f[B]--interactive\f[R]] [\f[B]--mathlib\f[R]]
|
||||
[\f[B]--no-prompt\f[R]] [\f[B]--quiet\f[R]] [\f[B]--standard\f[R]]
|
||||
[\f[B]--warn\f[R]] [\f[B]--version\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]--expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]--file\f[R]=\f[I]file\f[R]\&...]
|
||||
[\f[I]file\f[R]\&...]
|
||||
.SH DESCRIPTION
|
||||
.PP
|
||||
@ -58,7 +57,7 @@ This bc(1) is a drop-in replacement for \f[I]any\f[R] bc(1), including
|
||||
.PP
|
||||
The following are the options that bc(1) accepts.
|
||||
.PP
|
||||
\f[B]-g\f[R], \f[B]\[en]global-stacks\f[R]
|
||||
\f[B]-g\f[R], \f[B]--global-stacks\f[R]
|
||||
.IP
|
||||
.nf
|
||||
\f[C]
|
||||
@ -115,10 +114,10 @@ This is a **non-portable extension**.
|
||||
\f[R]
|
||||
.fi
|
||||
.TP
|
||||
\f[B]-h\f[R], \f[B]\[en]help\f[R]
|
||||
\f[B]-h\f[R], \f[B]--help\f[R]
|
||||
Prints a usage message and quits.
|
||||
.TP
|
||||
\f[B]-i\f[R], \f[B]\[en]interactive\f[R]
|
||||
\f[B]-i\f[R], \f[B]--interactive\f[R]
|
||||
Forces interactive mode.
|
||||
(See the \f[B]INTERACTIVE MODE\f[R] section.)
|
||||
.RS
|
||||
@ -126,7 +125,7 @@ Forces interactive mode.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-l\f[R], \f[B]\[en]mathlib\f[R]
|
||||
\f[B]-l\f[R], \f[B]--mathlib\f[R]
|
||||
Sets \f[B]scale\f[R] (see the \f[B]SYNTAX\f[R] section) to \f[B]20\f[R]
|
||||
and loads the included math library before running any code, including
|
||||
any expressions or files specified on the command line.
|
||||
@ -135,7 +134,7 @@ any expressions or files specified on the command line.
|
||||
To learn what is in the library, see the \f[B]LIBRARY\f[R] section.
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-P\f[R], \f[B]\[en]no-prompt\f[R]
|
||||
\f[B]-P\f[R], \f[B]--no-prompt\f[R]
|
||||
Disables the prompt in TTY mode.
|
||||
(The prompt is only enabled in TTY mode.
|
||||
See the \f[B]TTY MODE\f[R] section) This is mostly for those users that
|
||||
@ -147,18 +146,18 @@ Most of those users would want to put this option in
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-q\f[R], \f[B]\[en]quiet\f[R]
|
||||
\f[B]-q\f[R], \f[B]--quiet\f[R]
|
||||
This option is for compatibility with the GNU
|
||||
bc(1) (https://www.gnu.org/software/bc/); it is a no-op.
|
||||
Without this option, GNU bc(1) prints a copyright header.
|
||||
This bc(1) only prints the copyright header if one or more of the
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], or \f[B]\[en]version\f[R] options are given.
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], or \f[B]--version\f[R] options are given.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-s\f[R], \f[B]\[en]standard\f[R]
|
||||
\f[B]-s\f[R], \f[B]--standard\f[R]
|
||||
Process exactly the language defined by the
|
||||
standard (https://pubs.opengroup.org/onlinepubs/9699919799/utilities/bc.html)
|
||||
and error if any extensions are used.
|
||||
@ -167,15 +166,15 @@ and error if any extensions are used.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]\[en]version\f[R]
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]--version\f[R]
|
||||
Print the version information (copyright header) and exit.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-w\f[R], \f[B]\[en]warn\f[R]
|
||||
Like \f[B]-s\f[R] and \f[B]\[en]standard\f[R], except that warnings (and
|
||||
\f[B]-w\f[R], \f[B]--warn\f[R]
|
||||
Like \f[B]-s\f[R] and \f[B]--standard\f[R], except that warnings (and
|
||||
not errors) are printed for non-standard extensions and execution
|
||||
continues normally.
|
||||
.RS
|
||||
@ -183,7 +182,7 @@ continues normally.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]\[en]expression\f[R]=\f[I]expr\f[R]
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]--expression\f[R]=\f[I]expr\f[R]
|
||||
Evaluates \f[I]expr\f[R].
|
||||
If multiple expressions are given, they are evaluated in order.
|
||||
If files are given as well (see below), the expressions and files are
|
||||
@ -196,17 +195,17 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, bc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R], whether on the command-line or in
|
||||
\f[B]BC_ENV_ARGS\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]\[en]file\f[R]=\f[I]file\f[R]
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]--file\f[R]=\f[I]file\f[R]
|
||||
Reads in \f[I]file\f[R] and evaluates it, line by line, as though it
|
||||
were read through \f[B]stdin\f[R].
|
||||
If expressions are also given (see above), the expressions are evaluated
|
||||
@ -217,9 +216,9 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, bc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
@ -284,8 +283,8 @@ constant numbers.
|
||||
It is the \[lq]input\[rq] base, or the number base used for interpreting
|
||||
input numbers.
|
||||
\f[B]ibase\f[R] is initially \f[B]10\f[R].
|
||||
If the \f[B]-s\f[R] (\f[B]\[en]standard\f[R]) and \f[B]-w\f[R]
|
||||
(\f[B]\[en]warn\f[R]) flags were not given on the command line, the max
|
||||
If the \f[B]-s\f[R] (\f[B]--standard\f[R]) and \f[B]-w\f[R]
|
||||
(\f[B]--warn\f[R]) flags were not given on the command line, the max
|
||||
allowable value for \f[B]ibase\f[R] is \f[B]36\f[R].
|
||||
Otherwise, it is \f[B]16\f[R].
|
||||
The min allowable value for \f[B]ibase\f[R] is \f[B]2\f[R].
|
||||
@ -445,7 +444,7 @@ The following arithmetic and logical operators can be used.
|
||||
They are listed in order of decreasing precedence.
|
||||
Operators in the same group have the same precedence.
|
||||
.TP
|
||||
\f[B]++\f[R] \f[B]\[en]\f[R]
|
||||
\f[B]++\f[R] \f[B]--\f[R]
|
||||
Type: Prefix and Postfix
|
||||
.RS
|
||||
.PP
|
||||
@ -528,7 +527,7 @@ Description: \f[B]boolean or\f[R]
|
||||
.PP
|
||||
The operators will be described in more detail below.
|
||||
.TP
|
||||
\f[B]++\f[R] \f[B]\[en]\f[R]
|
||||
\f[B]++\f[R] \f[B]--\f[R]
|
||||
The prefix and postfix \f[B]increment\f[R] and \f[B]decrement\f[R]
|
||||
operators behave exactly like they would in C.
|
||||
They require a named expression (see the \f[I]Named Expressions\f[R]
|
||||
@ -908,7 +907,7 @@ This is a \f[B]non-portable extension\f[R].
|
||||
.SH LIBRARY
|
||||
.PP
|
||||
All of the functions below are available when the \f[B]-l\f[R] or
|
||||
\f[B]\[en]mathlib\f[R] command-line flags are given.
|
||||
\f[B]--mathlib\f[R] command-line flags are given.
|
||||
.SS Standard Library
|
||||
.PP
|
||||
The
|
||||
@ -1213,11 +1212,11 @@ interactive mode (see the \f[B]INTERACTIVE MODE\f[R] section), since
|
||||
bc(1) resets its state (see the \f[B]RESET\f[R] section) and accepts
|
||||
more input when one of those errors occurs in interactive mode.
|
||||
This is also the case when interactive mode is forced by the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.PP
|
||||
These exit statuses allow bc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.SH INTERACTIVE MODE
|
||||
.PP
|
||||
Per the
|
||||
@ -1225,7 +1224,7 @@ standard (https://pubs.opengroup.org/onlinepubs/9699919799/utilities/bc.html),
|
||||
bc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both \f[B]stdin\f[R]
|
||||
and \f[B]stdout\f[R] are hooked to a terminal, but the \f[B]-i\f[R] flag
|
||||
and \f[B]\[en]interactive\f[R] option can turn it on in other cases.
|
||||
and \f[B]--interactive\f[R] option can turn it on in other cases.
|
||||
.PP
|
||||
In interactive mode, bc(1) attempts to recover from errors (see the
|
||||
\f[B]RESET\f[R] section), and in normal execution, flushes
|
||||
|
||||
@ -34,8 +34,7 @@ bc - arbitrary-precision decimal arithmetic language and calculator
|
||||
|
||||
# SYNOPSIS
|
||||
|
||||
**bc** [**-ghilPqsvVw**] [**--global-stacks**] [**--help**] [**--interactive**] [**--mathlib**] [**--no-prompt**] [**--quiet**] [**--standard**] [**--warn**] [**--version**] [**-e** *expr*] [**--expression**=*expr*...] [**-f** *file*...] [**-file**=*file*...]
|
||||
[*file*...]
|
||||
**bc** [**-ghilPqsvVw**] [**-\-global-stacks**] [**-\-help**] [**-\-interactive**] [**-\-mathlib**] [**-\-no-prompt**] [**-\-quiet**] [**-\-standard**] [**-\-warn**] [**-\-version**] [**-e** *expr*] [**-\-expression**=*expr*...] [**-f** *file*...] [**-\-file**=*file*...] [*file*...]
|
||||
|
||||
# DESCRIPTION
|
||||
|
||||
@ -54,7 +53,7 @@ especially) the GNU bc(1).
|
||||
|
||||
The following are the options that bc(1) accepts.
|
||||
|
||||
**-g**, **--global-stacks**
|
||||
**-g**, **-\-global-stacks**
|
||||
|
||||
Turns the globals **ibase**, **obase**, and **scale** into stacks.
|
||||
|
||||
@ -107,17 +106,17 @@ The following are the options that bc(1) accepts.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-h**, **--help**
|
||||
**-h**, **-\-help**
|
||||
|
||||
: Prints a usage message and quits.
|
||||
|
||||
**-i**, **--interactive**
|
||||
**-i**, **-\-interactive**
|
||||
|
||||
: Forces interactive mode. (See the **INTERACTIVE MODE** section.)
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-l**, **--mathlib**
|
||||
**-l**, **-\-mathlib**
|
||||
|
||||
: Sets **scale** (see the **SYNTAX** section) to **20** and loads the included
|
||||
math library before running any code, including any expressions or files
|
||||
@ -125,7 +124,7 @@ The following are the options that bc(1) accepts.
|
||||
|
||||
To learn what is in the library, see the **LIBRARY** section.
|
||||
|
||||
**-P**, **--no-prompt**
|
||||
**-P**, **-\-no-prompt**
|
||||
|
||||
: Disables the prompt in TTY mode. (The prompt is only enabled in TTY mode.
|
||||
See the **TTY MODE** section) This is mostly for those users that do not
|
||||
@ -135,36 +134,36 @@ The following are the options that bc(1) accepts.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-q**, **--quiet**
|
||||
**-q**, **-\-quiet**
|
||||
|
||||
: This option is for compatibility with the [GNU bc(1)][2]; it is a no-op.
|
||||
Without this option, GNU bc(1) prints a copyright header. This bc(1) only
|
||||
prints the copyright header if one or more of the **-v**, **-V**, or
|
||||
**--version** options are given.
|
||||
**-\-version** options are given.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-s**, **--standard**
|
||||
**-s**, **-\-standard**
|
||||
|
||||
: Process exactly the language defined by the [standard][1] and error if any
|
||||
extensions are used.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-v**, **-V**, **--version**
|
||||
**-v**, **-V**, **-\-version**
|
||||
|
||||
: Print the version information (copyright header) and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-w**, **--warn**
|
||||
**-w**, **-\-warn**
|
||||
|
||||
: Like **-s** and **--standard**, except that warnings (and not errors) are
|
||||
: Like **-s** and **-\-standard**, except that warnings (and not errors) are
|
||||
printed for non-standard extensions and execution continues normally.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-e** *expr*, **--expression**=*expr*
|
||||
**-e** *expr*, **-\-expression**=*expr*
|
||||
|
||||
: Evaluates *expr*. If multiple expressions are given, they are evaluated in
|
||||
order. If files are given as well (see below), the expressions and files are
|
||||
@ -174,14 +173,14 @@ The following are the options that bc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**, whether on the
|
||||
as an argument at least once to **-f** or **-\-file**, whether on the
|
||||
command-line or in **BC_ENV_ARGS**. However, if any other **-e**,
|
||||
**--expression**, **-f**, or **--file** arguments are given after **-f-** or
|
||||
equivalent is given, bc(1) will give a fatal error and exit.
|
||||
**-\-expression**, **-f**, or **-\-file** arguments are given after **-f-**
|
||||
or equivalent is given, bc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-f** *file*, **--file**=*file*
|
||||
**-f** *file*, **-\-file**=*file*
|
||||
|
||||
: Reads in *file* and evaluates it, line by line, as though it were read
|
||||
through **stdin**. If expressions are also given (see above), the
|
||||
@ -190,8 +189,8 @@ The following are the options that bc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**. However, if any other
|
||||
**-e**, **--expression**, **-f**, or **--file** arguments are given after
|
||||
as an argument at least once to **-f** or **-\-file**. However, if any other
|
||||
**-e**, **-\-expression**, **-f**, or **-\-file** arguments are given after
|
||||
**-f-** or equivalent is given, bc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
@ -246,8 +245,8 @@ Identifiers with more than one character (letter) are a
|
||||
|
||||
**ibase** is a global variable determining how to interpret constant numbers. It
|
||||
is the "input" base, or the number base used for interpreting input numbers.
|
||||
**ibase** is initially **10**. If the **-s** (**--standard**) and **-w**
|
||||
(**--warn**) flags were not given on the command line, the max allowable value
|
||||
**ibase** is initially **10**. If the **-s** (**-\-standard**) and **-w**
|
||||
(**-\-warn**) flags were not given on the command line, the max allowable value
|
||||
for **ibase** is **36**. Otherwise, it is **16**. The min allowable value for
|
||||
**ibase** is **2**. The max allowable value for **ibase** can be queried in
|
||||
bc(1) programs with the **maxibase()** built-in function.
|
||||
@ -366,7 +365,7 @@ The following arithmetic and logical operators can be used. They are listed in
|
||||
order of decreasing precedence. Operators in the same group have the same
|
||||
precedence.
|
||||
|
||||
**++** **--**
|
||||
**++** **-\-**
|
||||
|
||||
: Type: Prefix and Postfix
|
||||
|
||||
@ -440,7 +439,7 @@ precedence.
|
||||
|
||||
The operators will be described in more detail below.
|
||||
|
||||
**++** **--**
|
||||
**++** **-\-**
|
||||
|
||||
: The prefix and postfix **increment** and **decrement** operators behave
|
||||
exactly like they would in C. They require a named expression (see the
|
||||
@ -716,7 +715,7 @@ This is a **non-portable extension**.
|
||||
|
||||
# LIBRARY
|
||||
|
||||
All of the functions below are available when the **-l** or **--mathlib**
|
||||
All of the functions below are available when the **-l** or **-\-mathlib**
|
||||
command-line flags are given.
|
||||
|
||||
## Standard Library
|
||||
@ -992,17 +991,17 @@ The other statuses will only be returned when bc(1) is not in interactive mode
|
||||
(see the **INTERACTIVE MODE** section), since bc(1) resets its state (see the
|
||||
**RESET** section) and accepts more input when one of those errors occurs in
|
||||
interactive mode. This is also the case when interactive mode is forced by the
|
||||
**-i** flag or **--interactive** option.
|
||||
**-i** flag or **-\-interactive** option.
|
||||
|
||||
These exit statuses allow bc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the **-i** flag or
|
||||
**--interactive** option.
|
||||
**-\-interactive** option.
|
||||
|
||||
# INTERACTIVE MODE
|
||||
|
||||
Per the [standard][1], bc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both **stdin** and **stdout**
|
||||
are hooked to a terminal, but the **-i** flag and **--interactive** option can
|
||||
are hooked to a terminal, but the **-i** flag and **-\-interactive** option can
|
||||
turn it on in other cases.
|
||||
|
||||
In interactive mode, bc(1) attempts to recover from errors (see the **RESET**
|
||||
|
||||
@ -25,19 +25,18 @@
|
||||
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
.\" POSSIBILITY OF SUCH DAMAGE.
|
||||
.\"
|
||||
.TH "BC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.TH "BC" "1" "March 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.SH NAME
|
||||
.PP
|
||||
bc - arbitrary-precision decimal arithmetic language and calculator
|
||||
.SH SYNOPSIS
|
||||
.PP
|
||||
\f[B]bc\f[R] [\f[B]-ghilPqsvVw\f[R]] [\f[B]\[en]global-stacks\f[R]]
|
||||
[\f[B]\[en]help\f[R]] [\f[B]\[en]interactive\f[R]]
|
||||
[\f[B]\[en]mathlib\f[R]] [\f[B]\[en]no-prompt\f[R]]
|
||||
[\f[B]\[en]quiet\f[R]] [\f[B]\[en]standard\f[R]] [\f[B]\[en]warn\f[R]]
|
||||
[\f[B]\[en]version\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]\[en]expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]-file\f[R]=\f[I]file\f[R]\&...]
|
||||
\f[B]bc\f[R] [\f[B]-ghilPqsvVw\f[R]] [\f[B]--global-stacks\f[R]]
|
||||
[\f[B]--help\f[R]] [\f[B]--interactive\f[R]] [\f[B]--mathlib\f[R]]
|
||||
[\f[B]--no-prompt\f[R]] [\f[B]--quiet\f[R]] [\f[B]--standard\f[R]]
|
||||
[\f[B]--warn\f[R]] [\f[B]--version\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]--expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]--file\f[R]=\f[I]file\f[R]\&...]
|
||||
[\f[I]file\f[R]\&...]
|
||||
.SH DESCRIPTION
|
||||
.PP
|
||||
@ -55,7 +54,7 @@ the command line and executes them before reading from \f[B]stdin\f[R].
|
||||
.PP
|
||||
The following are the options that bc(1) accepts.
|
||||
.PP
|
||||
\f[B]-g\f[R], \f[B]\[en]global-stacks\f[R]
|
||||
\f[B]-g\f[R], \f[B]--global-stacks\f[R]
|
||||
.IP
|
||||
.nf
|
||||
\f[C]
|
||||
@ -112,10 +111,10 @@ This is a **non-portable extension**.
|
||||
\f[R]
|
||||
.fi
|
||||
.TP
|
||||
\f[B]-h\f[R], \f[B]\[en]help\f[R]
|
||||
\f[B]-h\f[R], \f[B]--help\f[R]
|
||||
Prints a usage message and quits.
|
||||
.TP
|
||||
\f[B]-i\f[R], \f[B]\[en]interactive\f[R]
|
||||
\f[B]-i\f[R], \f[B]--interactive\f[R]
|
||||
Forces interactive mode.
|
||||
(See the \f[B]INTERACTIVE MODE\f[R] section.)
|
||||
.RS
|
||||
@ -123,7 +122,7 @@ Forces interactive mode.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-l\f[R], \f[B]\[en]mathlib\f[R]
|
||||
\f[B]-l\f[R], \f[B]--mathlib\f[R]
|
||||
Sets \f[B]scale\f[R] (see the \f[B]SYNTAX\f[R] section) to \f[B]20\f[R]
|
||||
and loads the included math library before running any code, including
|
||||
any expressions or files specified on the command line.
|
||||
@ -132,7 +131,7 @@ any expressions or files specified on the command line.
|
||||
To learn what is in the library, see the \f[B]LIBRARY\f[R] section.
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-P\f[R], \f[B]\[en]no-prompt\f[R]
|
||||
\f[B]-P\f[R], \f[B]--no-prompt\f[R]
|
||||
Disables the prompt in TTY mode.
|
||||
(The prompt is only enabled in TTY mode.
|
||||
See the \f[B]TTY MODE\f[R] section) This is mostly for those users that
|
||||
@ -144,18 +143,18 @@ Most of those users would want to put this option in
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-q\f[R], \f[B]\[en]quiet\f[R]
|
||||
\f[B]-q\f[R], \f[B]--quiet\f[R]
|
||||
This option is for compatibility with the GNU
|
||||
bc(1) (https://www.gnu.org/software/bc/); it is a no-op.
|
||||
Without this option, GNU bc(1) prints a copyright header.
|
||||
This bc(1) only prints the copyright header if one or more of the
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], or \f[B]\[en]version\f[R] options are given.
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], or \f[B]--version\f[R] options are given.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-s\f[R], \f[B]\[en]standard\f[R]
|
||||
\f[B]-s\f[R], \f[B]--standard\f[R]
|
||||
Process exactly the language defined by the
|
||||
standard (https://pubs.opengroup.org/onlinepubs/9699919799/utilities/bc.html)
|
||||
and error if any extensions are used.
|
||||
@ -164,15 +163,15 @@ and error if any extensions are used.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]\[en]version\f[R]
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]--version\f[R]
|
||||
Print the version information (copyright header) and exit.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-w\f[R], \f[B]\[en]warn\f[R]
|
||||
Like \f[B]-s\f[R] and \f[B]\[en]standard\f[R], except that warnings (and
|
||||
\f[B]-w\f[R], \f[B]--warn\f[R]
|
||||
Like \f[B]-s\f[R] and \f[B]--standard\f[R], except that warnings (and
|
||||
not errors) are printed for non-standard extensions and execution
|
||||
continues normally.
|
||||
.RS
|
||||
@ -180,7 +179,7 @@ continues normally.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]\[en]expression\f[R]=\f[I]expr\f[R]
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]--expression\f[R]=\f[I]expr\f[R]
|
||||
Evaluates \f[I]expr\f[R].
|
||||
If multiple expressions are given, they are evaluated in order.
|
||||
If files are given as well (see below), the expressions and files are
|
||||
@ -193,17 +192,17 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, bc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R], whether on the command-line or in
|
||||
\f[B]BC_ENV_ARGS\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]\[en]file\f[R]=\f[I]file\f[R]
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]--file\f[R]=\f[I]file\f[R]
|
||||
Reads in \f[I]file\f[R] and evaluates it, line by line, as though it
|
||||
were read through \f[B]stdin\f[R].
|
||||
If expressions are also given (see above), the expressions are evaluated
|
||||
@ -214,9 +213,9 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, bc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
@ -281,8 +280,8 @@ constant numbers.
|
||||
It is the \[lq]input\[rq] base, or the number base used for interpreting
|
||||
input numbers.
|
||||
\f[B]ibase\f[R] is initially \f[B]10\f[R].
|
||||
If the \f[B]-s\f[R] (\f[B]\[en]standard\f[R]) and \f[B]-w\f[R]
|
||||
(\f[B]\[en]warn\f[R]) flags were not given on the command line, the max
|
||||
If the \f[B]-s\f[R] (\f[B]--standard\f[R]) and \f[B]-w\f[R]
|
||||
(\f[B]--warn\f[R]) flags were not given on the command line, the max
|
||||
allowable value for \f[B]ibase\f[R] is \f[B]36\f[R].
|
||||
Otherwise, it is \f[B]16\f[R].
|
||||
The min allowable value for \f[B]ibase\f[R] is \f[B]2\f[R].
|
||||
@ -442,7 +441,7 @@ The following arithmetic and logical operators can be used.
|
||||
They are listed in order of decreasing precedence.
|
||||
Operators in the same group have the same precedence.
|
||||
.TP
|
||||
\f[B]++\f[R] \f[B]\[en]\f[R]
|
||||
\f[B]++\f[R] \f[B]--\f[R]
|
||||
Type: Prefix and Postfix
|
||||
.RS
|
||||
.PP
|
||||
@ -525,7 +524,7 @@ Description: \f[B]boolean or\f[R]
|
||||
.PP
|
||||
The operators will be described in more detail below.
|
||||
.TP
|
||||
\f[B]++\f[R] \f[B]\[en]\f[R]
|
||||
\f[B]++\f[R] \f[B]--\f[R]
|
||||
The prefix and postfix \f[B]increment\f[R] and \f[B]decrement\f[R]
|
||||
operators behave exactly like they would in C.
|
||||
They require a named expression (see the \f[I]Named Expressions\f[R]
|
||||
@ -905,7 +904,7 @@ This is a \f[B]non-portable extension\f[R].
|
||||
.SH LIBRARY
|
||||
.PP
|
||||
All of the functions below are available when the \f[B]-l\f[R] or
|
||||
\f[B]\[en]mathlib\f[R] command-line flags are given.
|
||||
\f[B]--mathlib\f[R] command-line flags are given.
|
||||
.SS Standard Library
|
||||
.PP
|
||||
The
|
||||
@ -1210,11 +1209,11 @@ interactive mode (see the \f[B]INTERACTIVE MODE\f[R] section), since
|
||||
bc(1) resets its state (see the \f[B]RESET\f[R] section) and accepts
|
||||
more input when one of those errors occurs in interactive mode.
|
||||
This is also the case when interactive mode is forced by the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.PP
|
||||
These exit statuses allow bc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.SH INTERACTIVE MODE
|
||||
.PP
|
||||
Per the
|
||||
@ -1222,7 +1221,7 @@ standard (https://pubs.opengroup.org/onlinepubs/9699919799/utilities/bc.html),
|
||||
bc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both \f[B]stdin\f[R]
|
||||
and \f[B]stdout\f[R] are hooked to a terminal, but the \f[B]-i\f[R] flag
|
||||
and \f[B]\[en]interactive\f[R] option can turn it on in other cases.
|
||||
and \f[B]--interactive\f[R] option can turn it on in other cases.
|
||||
.PP
|
||||
In interactive mode, bc(1) attempts to recover from errors (see the
|
||||
\f[B]RESET\f[R] section), and in normal execution, flushes
|
||||
|
||||
@ -34,8 +34,7 @@ bc - arbitrary-precision decimal arithmetic language and calculator
|
||||
|
||||
# SYNOPSIS
|
||||
|
||||
**bc** [**-ghilPqsvVw**] [**--global-stacks**] [**--help**] [**--interactive**] [**--mathlib**] [**--no-prompt**] [**--quiet**] [**--standard**] [**--warn**] [**--version**] [**-e** *expr*] [**--expression**=*expr*...] [**-f** *file*...] [**-file**=*file*...]
|
||||
[*file*...]
|
||||
**bc** [**-ghilPqsvVw**] [**-\-global-stacks**] [**-\-help**] [**-\-interactive**] [**-\-mathlib**] [**-\-no-prompt**] [**-\-quiet**] [**-\-standard**] [**-\-warn**] [**-\-version**] [**-e** *expr*] [**-\-expression**=*expr*...] [**-f** *file*...] [**-\-file**=*file*...] [*file*...]
|
||||
|
||||
# DESCRIPTION
|
||||
|
||||
@ -51,7 +50,7 @@ command line and executes them before reading from **stdin**.
|
||||
|
||||
The following are the options that bc(1) accepts.
|
||||
|
||||
**-g**, **--global-stacks**
|
||||
**-g**, **-\-global-stacks**
|
||||
|
||||
Turns the globals **ibase**, **obase**, and **scale** into stacks.
|
||||
|
||||
@ -104,17 +103,17 @@ The following are the options that bc(1) accepts.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-h**, **--help**
|
||||
**-h**, **-\-help**
|
||||
|
||||
: Prints a usage message and quits.
|
||||
|
||||
**-i**, **--interactive**
|
||||
**-i**, **-\-interactive**
|
||||
|
||||
: Forces interactive mode. (See the **INTERACTIVE MODE** section.)
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-l**, **--mathlib**
|
||||
**-l**, **-\-mathlib**
|
||||
|
||||
: Sets **scale** (see the **SYNTAX** section) to **20** and loads the included
|
||||
math library before running any code, including any expressions or files
|
||||
@ -122,7 +121,7 @@ The following are the options that bc(1) accepts.
|
||||
|
||||
To learn what is in the library, see the **LIBRARY** section.
|
||||
|
||||
**-P**, **--no-prompt**
|
||||
**-P**, **-\-no-prompt**
|
||||
|
||||
: Disables the prompt in TTY mode. (The prompt is only enabled in TTY mode.
|
||||
See the **TTY MODE** section) This is mostly for those users that do not
|
||||
@ -132,36 +131,36 @@ The following are the options that bc(1) accepts.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-q**, **--quiet**
|
||||
**-q**, **-\-quiet**
|
||||
|
||||
: This option is for compatibility with the [GNU bc(1)][2]; it is a no-op.
|
||||
Without this option, GNU bc(1) prints a copyright header. This bc(1) only
|
||||
prints the copyright header if one or more of the **-v**, **-V**, or
|
||||
**--version** options are given.
|
||||
**-\-version** options are given.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-s**, **--standard**
|
||||
**-s**, **-\-standard**
|
||||
|
||||
: Process exactly the language defined by the [standard][1] and error if any
|
||||
extensions are used.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-v**, **-V**, **--version**
|
||||
**-v**, **-V**, **-\-version**
|
||||
|
||||
: Print the version information (copyright header) and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-w**, **--warn**
|
||||
**-w**, **-\-warn**
|
||||
|
||||
: Like **-s** and **--standard**, except that warnings (and not errors) are
|
||||
: Like **-s** and **-\-standard**, except that warnings (and not errors) are
|
||||
printed for non-standard extensions and execution continues normally.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-e** *expr*, **--expression**=*expr*
|
||||
**-e** *expr*, **-\-expression**=*expr*
|
||||
|
||||
: Evaluates *expr*. If multiple expressions are given, they are evaluated in
|
||||
order. If files are given as well (see below), the expressions and files are
|
||||
@ -171,14 +170,14 @@ The following are the options that bc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**, whether on the
|
||||
as an argument at least once to **-f** or **-\-file**, whether on the
|
||||
command-line or in **BC_ENV_ARGS**. However, if any other **-e**,
|
||||
**--expression**, **-f**, or **--file** arguments are given after **-f-** or
|
||||
equivalent is given, bc(1) will give a fatal error and exit.
|
||||
**-\-expression**, **-f**, or **-\-file** arguments are given after **-f-**
|
||||
or equivalent is given, bc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-f** *file*, **--file**=*file*
|
||||
**-f** *file*, **-\-file**=*file*
|
||||
|
||||
: Reads in *file* and evaluates it, line by line, as though it were read
|
||||
through **stdin**. If expressions are also given (see above), the
|
||||
@ -187,8 +186,8 @@ The following are the options that bc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**. However, if any other
|
||||
**-e**, **--expression**, **-f**, or **--file** arguments are given after
|
||||
as an argument at least once to **-f** or **-\-file**. However, if any other
|
||||
**-e**, **-\-expression**, **-f**, or **-\-file** arguments are given after
|
||||
**-f-** or equivalent is given, bc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
@ -243,8 +242,8 @@ Identifiers with more than one character (letter) are a
|
||||
|
||||
**ibase** is a global variable determining how to interpret constant numbers. It
|
||||
is the "input" base, or the number base used for interpreting input numbers.
|
||||
**ibase** is initially **10**. If the **-s** (**--standard**) and **-w**
|
||||
(**--warn**) flags were not given on the command line, the max allowable value
|
||||
**ibase** is initially **10**. If the **-s** (**-\-standard**) and **-w**
|
||||
(**-\-warn**) flags were not given on the command line, the max allowable value
|
||||
for **ibase** is **36**. Otherwise, it is **16**. The min allowable value for
|
||||
**ibase** is **2**. The max allowable value for **ibase** can be queried in
|
||||
bc(1) programs with the **maxibase()** built-in function.
|
||||
@ -363,7 +362,7 @@ The following arithmetic and logical operators can be used. They are listed in
|
||||
order of decreasing precedence. Operators in the same group have the same
|
||||
precedence.
|
||||
|
||||
**++** **--**
|
||||
**++** **-\-**
|
||||
|
||||
: Type: Prefix and Postfix
|
||||
|
||||
@ -437,7 +436,7 @@ precedence.
|
||||
|
||||
The operators will be described in more detail below.
|
||||
|
||||
**++** **--**
|
||||
**++** **-\-**
|
||||
|
||||
: The prefix and postfix **increment** and **decrement** operators behave
|
||||
exactly like they would in C. They require a named expression (see the
|
||||
@ -713,7 +712,7 @@ This is a **non-portable extension**.
|
||||
|
||||
# LIBRARY
|
||||
|
||||
All of the functions below are available when the **-l** or **--mathlib**
|
||||
All of the functions below are available when the **-l** or **-\-mathlib**
|
||||
command-line flags are given.
|
||||
|
||||
## Standard Library
|
||||
@ -989,17 +988,17 @@ The other statuses will only be returned when bc(1) is not in interactive mode
|
||||
(see the **INTERACTIVE MODE** section), since bc(1) resets its state (see the
|
||||
**RESET** section) and accepts more input when one of those errors occurs in
|
||||
interactive mode. This is also the case when interactive mode is forced by the
|
||||
**-i** flag or **--interactive** option.
|
||||
**-i** flag or **-\-interactive** option.
|
||||
|
||||
These exit statuses allow bc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the **-i** flag or
|
||||
**--interactive** option.
|
||||
**-\-interactive** option.
|
||||
|
||||
# INTERACTIVE MODE
|
||||
|
||||
Per the [standard][1], bc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both **stdin** and **stdout**
|
||||
are hooked to a terminal, but the **-i** flag and **--interactive** option can
|
||||
are hooked to a terminal, but the **-i** flag and **-\-interactive** option can
|
||||
turn it on in other cases.
|
||||
|
||||
In interactive mode, bc(1) attempts to recover from errors (see the **RESET**
|
||||
|
||||
@ -25,19 +25,18 @@
|
||||
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
.\" POSSIBILITY OF SUCH DAMAGE.
|
||||
.\"
|
||||
.TH "BC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.TH "BC" "1" "March 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.SH NAME
|
||||
.PP
|
||||
bc - arbitrary-precision decimal arithmetic language and calculator
|
||||
.SH SYNOPSIS
|
||||
.PP
|
||||
\f[B]bc\f[R] [\f[B]-ghilPqsvVw\f[R]] [\f[B]\[en]global-stacks\f[R]]
|
||||
[\f[B]\[en]help\f[R]] [\f[B]\[en]interactive\f[R]]
|
||||
[\f[B]\[en]mathlib\f[R]] [\f[B]\[en]no-prompt\f[R]]
|
||||
[\f[B]\[en]quiet\f[R]] [\f[B]\[en]standard\f[R]] [\f[B]\[en]warn\f[R]]
|
||||
[\f[B]\[en]version\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]\[en]expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]-file\f[R]=\f[I]file\f[R]\&...]
|
||||
\f[B]bc\f[R] [\f[B]-ghilPqsvVw\f[R]] [\f[B]--global-stacks\f[R]]
|
||||
[\f[B]--help\f[R]] [\f[B]--interactive\f[R]] [\f[B]--mathlib\f[R]]
|
||||
[\f[B]--no-prompt\f[R]] [\f[B]--quiet\f[R]] [\f[B]--standard\f[R]]
|
||||
[\f[B]--warn\f[R]] [\f[B]--version\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]--expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]--file\f[R]=\f[I]file\f[R]\&...]
|
||||
[\f[I]file\f[R]\&...]
|
||||
.SH DESCRIPTION
|
||||
.PP
|
||||
@ -55,7 +54,7 @@ the command line and executes them before reading from \f[B]stdin\f[R].
|
||||
.PP
|
||||
The following are the options that bc(1) accepts.
|
||||
.PP
|
||||
\f[B]-g\f[R], \f[B]\[en]global-stacks\f[R]
|
||||
\f[B]-g\f[R], \f[B]--global-stacks\f[R]
|
||||
.IP
|
||||
.nf
|
||||
\f[C]
|
||||
@ -112,10 +111,10 @@ This is a **non-portable extension**.
|
||||
\f[R]
|
||||
.fi
|
||||
.TP
|
||||
\f[B]-h\f[R], \f[B]\[en]help\f[R]
|
||||
\f[B]-h\f[R], \f[B]--help\f[R]
|
||||
Prints a usage message and quits.
|
||||
.TP
|
||||
\f[B]-i\f[R], \f[B]\[en]interactive\f[R]
|
||||
\f[B]-i\f[R], \f[B]--interactive\f[R]
|
||||
Forces interactive mode.
|
||||
(See the \f[B]INTERACTIVE MODE\f[R] section.)
|
||||
.RS
|
||||
@ -123,7 +122,7 @@ Forces interactive mode.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-l\f[R], \f[B]\[en]mathlib\f[R]
|
||||
\f[B]-l\f[R], \f[B]--mathlib\f[R]
|
||||
Sets \f[B]scale\f[R] (see the \f[B]SYNTAX\f[R] section) to \f[B]20\f[R]
|
||||
and loads the included math library before running any code, including
|
||||
any expressions or files specified on the command line.
|
||||
@ -132,7 +131,7 @@ any expressions or files specified on the command line.
|
||||
To learn what is in the library, see the \f[B]LIBRARY\f[R] section.
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-P\f[R], \f[B]\[en]no-prompt\f[R]
|
||||
\f[B]-P\f[R], \f[B]--no-prompt\f[R]
|
||||
Disables the prompt in TTY mode.
|
||||
(The prompt is only enabled in TTY mode.
|
||||
See the \f[B]TTY MODE\f[R] section) This is mostly for those users that
|
||||
@ -144,18 +143,18 @@ Most of those users would want to put this option in
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-q\f[R], \f[B]\[en]quiet\f[R]
|
||||
\f[B]-q\f[R], \f[B]--quiet\f[R]
|
||||
This option is for compatibility with the GNU
|
||||
bc(1) (https://www.gnu.org/software/bc/); it is a no-op.
|
||||
Without this option, GNU bc(1) prints a copyright header.
|
||||
This bc(1) only prints the copyright header if one or more of the
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], or \f[B]\[en]version\f[R] options are given.
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], or \f[B]--version\f[R] options are given.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-s\f[R], \f[B]\[en]standard\f[R]
|
||||
\f[B]-s\f[R], \f[B]--standard\f[R]
|
||||
Process exactly the language defined by the
|
||||
standard (https://pubs.opengroup.org/onlinepubs/9699919799/utilities/bc.html)
|
||||
and error if any extensions are used.
|
||||
@ -164,15 +163,15 @@ and error if any extensions are used.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]\[en]version\f[R]
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]--version\f[R]
|
||||
Print the version information (copyright header) and exit.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-w\f[R], \f[B]\[en]warn\f[R]
|
||||
Like \f[B]-s\f[R] and \f[B]\[en]standard\f[R], except that warnings (and
|
||||
\f[B]-w\f[R], \f[B]--warn\f[R]
|
||||
Like \f[B]-s\f[R] and \f[B]--standard\f[R], except that warnings (and
|
||||
not errors) are printed for non-standard extensions and execution
|
||||
continues normally.
|
||||
.RS
|
||||
@ -180,7 +179,7 @@ continues normally.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]\[en]expression\f[R]=\f[I]expr\f[R]
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]--expression\f[R]=\f[I]expr\f[R]
|
||||
Evaluates \f[I]expr\f[R].
|
||||
If multiple expressions are given, they are evaluated in order.
|
||||
If files are given as well (see below), the expressions and files are
|
||||
@ -193,17 +192,17 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, bc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R], whether on the command-line or in
|
||||
\f[B]BC_ENV_ARGS\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]\[en]file\f[R]=\f[I]file\f[R]
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]--file\f[R]=\f[I]file\f[R]
|
||||
Reads in \f[I]file\f[R] and evaluates it, line by line, as though it
|
||||
were read through \f[B]stdin\f[R].
|
||||
If expressions are also given (see above), the expressions are evaluated
|
||||
@ -214,9 +213,9 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, bc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
@ -281,8 +280,8 @@ constant numbers.
|
||||
It is the \[lq]input\[rq] base, or the number base used for interpreting
|
||||
input numbers.
|
||||
\f[B]ibase\f[R] is initially \f[B]10\f[R].
|
||||
If the \f[B]-s\f[R] (\f[B]\[en]standard\f[R]) and \f[B]-w\f[R]
|
||||
(\f[B]\[en]warn\f[R]) flags were not given on the command line, the max
|
||||
If the \f[B]-s\f[R] (\f[B]--standard\f[R]) and \f[B]-w\f[R]
|
||||
(\f[B]--warn\f[R]) flags were not given on the command line, the max
|
||||
allowable value for \f[B]ibase\f[R] is \f[B]36\f[R].
|
||||
Otherwise, it is \f[B]16\f[R].
|
||||
The min allowable value for \f[B]ibase\f[R] is \f[B]2\f[R].
|
||||
@ -442,7 +441,7 @@ The following arithmetic and logical operators can be used.
|
||||
They are listed in order of decreasing precedence.
|
||||
Operators in the same group have the same precedence.
|
||||
.TP
|
||||
\f[B]++\f[R] \f[B]\[en]\f[R]
|
||||
\f[B]++\f[R] \f[B]--\f[R]
|
||||
Type: Prefix and Postfix
|
||||
.RS
|
||||
.PP
|
||||
@ -525,7 +524,7 @@ Description: \f[B]boolean or\f[R]
|
||||
.PP
|
||||
The operators will be described in more detail below.
|
||||
.TP
|
||||
\f[B]++\f[R] \f[B]\[en]\f[R]
|
||||
\f[B]++\f[R] \f[B]--\f[R]
|
||||
The prefix and postfix \f[B]increment\f[R] and \f[B]decrement\f[R]
|
||||
operators behave exactly like they would in C.
|
||||
They require a named expression (see the \f[I]Named Expressions\f[R]
|
||||
@ -905,7 +904,7 @@ This is a \f[B]non-portable extension\f[R].
|
||||
.SH LIBRARY
|
||||
.PP
|
||||
All of the functions below are available when the \f[B]-l\f[R] or
|
||||
\f[B]\[en]mathlib\f[R] command-line flags are given.
|
||||
\f[B]--mathlib\f[R] command-line flags are given.
|
||||
.SS Standard Library
|
||||
.PP
|
||||
The
|
||||
@ -1210,11 +1209,11 @@ interactive mode (see the \f[B]INTERACTIVE MODE\f[R] section), since
|
||||
bc(1) resets its state (see the \f[B]RESET\f[R] section) and accepts
|
||||
more input when one of those errors occurs in interactive mode.
|
||||
This is also the case when interactive mode is forced by the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.PP
|
||||
These exit statuses allow bc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.SH INTERACTIVE MODE
|
||||
.PP
|
||||
Per the
|
||||
@ -1222,7 +1221,7 @@ standard (https://pubs.opengroup.org/onlinepubs/9699919799/utilities/bc.html),
|
||||
bc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both \f[B]stdin\f[R]
|
||||
and \f[B]stdout\f[R] are hooked to a terminal, but the \f[B]-i\f[R] flag
|
||||
and \f[B]\[en]interactive\f[R] option can turn it on in other cases.
|
||||
and \f[B]--interactive\f[R] option can turn it on in other cases.
|
||||
.PP
|
||||
In interactive mode, bc(1) attempts to recover from errors (see the
|
||||
\f[B]RESET\f[R] section), and in normal execution, flushes
|
||||
|
||||
@ -34,8 +34,7 @@ bc - arbitrary-precision decimal arithmetic language and calculator
|
||||
|
||||
# SYNOPSIS
|
||||
|
||||
**bc** [**-ghilPqsvVw**] [**--global-stacks**] [**--help**] [**--interactive**] [**--mathlib**] [**--no-prompt**] [**--quiet**] [**--standard**] [**--warn**] [**--version**] [**-e** *expr*] [**--expression**=*expr*...] [**-f** *file*...] [**-file**=*file*...]
|
||||
[*file*...]
|
||||
**bc** [**-ghilPqsvVw**] [**-\-global-stacks**] [**-\-help**] [**-\-interactive**] [**-\-mathlib**] [**-\-no-prompt**] [**-\-quiet**] [**-\-standard**] [**-\-warn**] [**-\-version**] [**-e** *expr*] [**-\-expression**=*expr*...] [**-f** *file*...] [**-\-file**=*file*...] [*file*...]
|
||||
|
||||
# DESCRIPTION
|
||||
|
||||
@ -51,7 +50,7 @@ command line and executes them before reading from **stdin**.
|
||||
|
||||
The following are the options that bc(1) accepts.
|
||||
|
||||
**-g**, **--global-stacks**
|
||||
**-g**, **-\-global-stacks**
|
||||
|
||||
Turns the globals **ibase**, **obase**, and **scale** into stacks.
|
||||
|
||||
@ -104,17 +103,17 @@ The following are the options that bc(1) accepts.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-h**, **--help**
|
||||
**-h**, **-\-help**
|
||||
|
||||
: Prints a usage message and quits.
|
||||
|
||||
**-i**, **--interactive**
|
||||
**-i**, **-\-interactive**
|
||||
|
||||
: Forces interactive mode. (See the **INTERACTIVE MODE** section.)
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-l**, **--mathlib**
|
||||
**-l**, **-\-mathlib**
|
||||
|
||||
: Sets **scale** (see the **SYNTAX** section) to **20** and loads the included
|
||||
math library before running any code, including any expressions or files
|
||||
@ -122,7 +121,7 @@ The following are the options that bc(1) accepts.
|
||||
|
||||
To learn what is in the library, see the **LIBRARY** section.
|
||||
|
||||
**-P**, **--no-prompt**
|
||||
**-P**, **-\-no-prompt**
|
||||
|
||||
: Disables the prompt in TTY mode. (The prompt is only enabled in TTY mode.
|
||||
See the **TTY MODE** section) This is mostly for those users that do not
|
||||
@ -132,36 +131,36 @@ The following are the options that bc(1) accepts.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-q**, **--quiet**
|
||||
**-q**, **-\-quiet**
|
||||
|
||||
: This option is for compatibility with the [GNU bc(1)][2]; it is a no-op.
|
||||
Without this option, GNU bc(1) prints a copyright header. This bc(1) only
|
||||
prints the copyright header if one or more of the **-v**, **-V**, or
|
||||
**--version** options are given.
|
||||
**-\-version** options are given.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-s**, **--standard**
|
||||
**-s**, **-\-standard**
|
||||
|
||||
: Process exactly the language defined by the [standard][1] and error if any
|
||||
extensions are used.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-v**, **-V**, **--version**
|
||||
**-v**, **-V**, **-\-version**
|
||||
|
||||
: Print the version information (copyright header) and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-w**, **--warn**
|
||||
**-w**, **-\-warn**
|
||||
|
||||
: Like **-s** and **--standard**, except that warnings (and not errors) are
|
||||
: Like **-s** and **-\-standard**, except that warnings (and not errors) are
|
||||
printed for non-standard extensions and execution continues normally.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-e** *expr*, **--expression**=*expr*
|
||||
**-e** *expr*, **-\-expression**=*expr*
|
||||
|
||||
: Evaluates *expr*. If multiple expressions are given, they are evaluated in
|
||||
order. If files are given as well (see below), the expressions and files are
|
||||
@ -171,14 +170,14 @@ The following are the options that bc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**, whether on the
|
||||
as an argument at least once to **-f** or **-\-file**, whether on the
|
||||
command-line or in **BC_ENV_ARGS**. However, if any other **-e**,
|
||||
**--expression**, **-f**, or **--file** arguments are given after **-f-** or
|
||||
equivalent is given, bc(1) will give a fatal error and exit.
|
||||
**-\-expression**, **-f**, or **-\-file** arguments are given after **-f-**
|
||||
or equivalent is given, bc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-f** *file*, **--file**=*file*
|
||||
**-f** *file*, **-\-file**=*file*
|
||||
|
||||
: Reads in *file* and evaluates it, line by line, as though it were read
|
||||
through **stdin**. If expressions are also given (see above), the
|
||||
@ -187,8 +186,8 @@ The following are the options that bc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**. However, if any other
|
||||
**-e**, **--expression**, **-f**, or **--file** arguments are given after
|
||||
as an argument at least once to **-f** or **-\-file**. However, if any other
|
||||
**-e**, **-\-expression**, **-f**, or **-\-file** arguments are given after
|
||||
**-f-** or equivalent is given, bc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
@ -243,8 +242,8 @@ Identifiers with more than one character (letter) are a
|
||||
|
||||
**ibase** is a global variable determining how to interpret constant numbers. It
|
||||
is the "input" base, or the number base used for interpreting input numbers.
|
||||
**ibase** is initially **10**. If the **-s** (**--standard**) and **-w**
|
||||
(**--warn**) flags were not given on the command line, the max allowable value
|
||||
**ibase** is initially **10**. If the **-s** (**-\-standard**) and **-w**
|
||||
(**-\-warn**) flags were not given on the command line, the max allowable value
|
||||
for **ibase** is **36**. Otherwise, it is **16**. The min allowable value for
|
||||
**ibase** is **2**. The max allowable value for **ibase** can be queried in
|
||||
bc(1) programs with the **maxibase()** built-in function.
|
||||
@ -363,7 +362,7 @@ The following arithmetic and logical operators can be used. They are listed in
|
||||
order of decreasing precedence. Operators in the same group have the same
|
||||
precedence.
|
||||
|
||||
**++** **--**
|
||||
**++** **-\-**
|
||||
|
||||
: Type: Prefix and Postfix
|
||||
|
||||
@ -437,7 +436,7 @@ precedence.
|
||||
|
||||
The operators will be described in more detail below.
|
||||
|
||||
**++** **--**
|
||||
**++** **-\-**
|
||||
|
||||
: The prefix and postfix **increment** and **decrement** operators behave
|
||||
exactly like they would in C. They require a named expression (see the
|
||||
@ -713,7 +712,7 @@ This is a **non-portable extension**.
|
||||
|
||||
# LIBRARY
|
||||
|
||||
All of the functions below are available when the **-l** or **--mathlib**
|
||||
All of the functions below are available when the **-l** or **-\-mathlib**
|
||||
command-line flags are given.
|
||||
|
||||
## Standard Library
|
||||
@ -989,17 +988,17 @@ The other statuses will only be returned when bc(1) is not in interactive mode
|
||||
(see the **INTERACTIVE MODE** section), since bc(1) resets its state (see the
|
||||
**RESET** section) and accepts more input when one of those errors occurs in
|
||||
interactive mode. This is also the case when interactive mode is forced by the
|
||||
**-i** flag or **--interactive** option.
|
||||
**-i** flag or **-\-interactive** option.
|
||||
|
||||
These exit statuses allow bc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the **-i** flag or
|
||||
**--interactive** option.
|
||||
**-\-interactive** option.
|
||||
|
||||
# INTERACTIVE MODE
|
||||
|
||||
Per the [standard][1], bc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both **stdin** and **stdout**
|
||||
are hooked to a terminal, but the **-i** flag and **--interactive** option can
|
||||
are hooked to a terminal, but the **-i** flag and **-\-interactive** option can
|
||||
turn it on in other cases.
|
||||
|
||||
In interactive mode, bc(1) attempts to recover from errors (see the **RESET**
|
||||
|
||||
@ -25,19 +25,18 @@
|
||||
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
.\" POSSIBILITY OF SUCH DAMAGE.
|
||||
.\"
|
||||
.TH "BC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.TH "BC" "1" "March 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.SH NAME
|
||||
.PP
|
||||
bc - arbitrary-precision decimal arithmetic language and calculator
|
||||
.SH SYNOPSIS
|
||||
.PP
|
||||
\f[B]bc\f[R] [\f[B]-ghilPqsvVw\f[R]] [\f[B]\[en]global-stacks\f[R]]
|
||||
[\f[B]\[en]help\f[R]] [\f[B]\[en]interactive\f[R]]
|
||||
[\f[B]\[en]mathlib\f[R]] [\f[B]\[en]no-prompt\f[R]]
|
||||
[\f[B]\[en]quiet\f[R]] [\f[B]\[en]standard\f[R]] [\f[B]\[en]warn\f[R]]
|
||||
[\f[B]\[en]version\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]\[en]expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]-file\f[R]=\f[I]file\f[R]\&...]
|
||||
\f[B]bc\f[R] [\f[B]-ghilPqsvVw\f[R]] [\f[B]--global-stacks\f[R]]
|
||||
[\f[B]--help\f[R]] [\f[B]--interactive\f[R]] [\f[B]--mathlib\f[R]]
|
||||
[\f[B]--no-prompt\f[R]] [\f[B]--quiet\f[R]] [\f[B]--standard\f[R]]
|
||||
[\f[B]--warn\f[R]] [\f[B]--version\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]--expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]--file\f[R]=\f[I]file\f[R]\&...]
|
||||
[\f[I]file\f[R]\&...]
|
||||
.SH DESCRIPTION
|
||||
.PP
|
||||
@ -55,7 +54,7 @@ the command line and executes them before reading from \f[B]stdin\f[R].
|
||||
.PP
|
||||
The following are the options that bc(1) accepts.
|
||||
.PP
|
||||
\f[B]-g\f[R], \f[B]\[en]global-stacks\f[R]
|
||||
\f[B]-g\f[R], \f[B]--global-stacks\f[R]
|
||||
.IP
|
||||
.nf
|
||||
\f[C]
|
||||
@ -112,10 +111,10 @@ This is a **non-portable extension**.
|
||||
\f[R]
|
||||
.fi
|
||||
.TP
|
||||
\f[B]-h\f[R], \f[B]\[en]help\f[R]
|
||||
\f[B]-h\f[R], \f[B]--help\f[R]
|
||||
Prints a usage message and quits.
|
||||
.TP
|
||||
\f[B]-i\f[R], \f[B]\[en]interactive\f[R]
|
||||
\f[B]-i\f[R], \f[B]--interactive\f[R]
|
||||
Forces interactive mode.
|
||||
(See the \f[B]INTERACTIVE MODE\f[R] section.)
|
||||
.RS
|
||||
@ -123,7 +122,7 @@ Forces interactive mode.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-l\f[R], \f[B]\[en]mathlib\f[R]
|
||||
\f[B]-l\f[R], \f[B]--mathlib\f[R]
|
||||
Sets \f[B]scale\f[R] (see the \f[B]SYNTAX\f[R] section) to \f[B]20\f[R]
|
||||
and loads the included math library before running any code, including
|
||||
any expressions or files specified on the command line.
|
||||
@ -132,25 +131,25 @@ any expressions or files specified on the command line.
|
||||
To learn what is in the library, see the \f[B]LIBRARY\f[R] section.
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-P\f[R], \f[B]\[en]no-prompt\f[R]
|
||||
\f[B]-P\f[R], \f[B]--no-prompt\f[R]
|
||||
This option is a no-op.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-q\f[R], \f[B]\[en]quiet\f[R]
|
||||
\f[B]-q\f[R], \f[B]--quiet\f[R]
|
||||
This option is for compatibility with the GNU
|
||||
bc(1) (https://www.gnu.org/software/bc/); it is a no-op.
|
||||
Without this option, GNU bc(1) prints a copyright header.
|
||||
This bc(1) only prints the copyright header if one or more of the
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], or \f[B]\[en]version\f[R] options are given.
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], or \f[B]--version\f[R] options are given.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-s\f[R], \f[B]\[en]standard\f[R]
|
||||
\f[B]-s\f[R], \f[B]--standard\f[R]
|
||||
Process exactly the language defined by the
|
||||
standard (https://pubs.opengroup.org/onlinepubs/9699919799/utilities/bc.html)
|
||||
and error if any extensions are used.
|
||||
@ -159,15 +158,15 @@ and error if any extensions are used.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]\[en]version\f[R]
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]--version\f[R]
|
||||
Print the version information (copyright header) and exit.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-w\f[R], \f[B]\[en]warn\f[R]
|
||||
Like \f[B]-s\f[R] and \f[B]\[en]standard\f[R], except that warnings (and
|
||||
\f[B]-w\f[R], \f[B]--warn\f[R]
|
||||
Like \f[B]-s\f[R] and \f[B]--standard\f[R], except that warnings (and
|
||||
not errors) are printed for non-standard extensions and execution
|
||||
continues normally.
|
||||
.RS
|
||||
@ -175,7 +174,7 @@ continues normally.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]\[en]expression\f[R]=\f[I]expr\f[R]
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]--expression\f[R]=\f[I]expr\f[R]
|
||||
Evaluates \f[I]expr\f[R].
|
||||
If multiple expressions are given, they are evaluated in order.
|
||||
If files are given as well (see below), the expressions and files are
|
||||
@ -188,17 +187,17 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, bc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R], whether on the command-line or in
|
||||
\f[B]BC_ENV_ARGS\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]\[en]file\f[R]=\f[I]file\f[R]
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]--file\f[R]=\f[I]file\f[R]
|
||||
Reads in \f[I]file\f[R] and evaluates it, line by line, as though it
|
||||
were read through \f[B]stdin\f[R].
|
||||
If expressions are also given (see above), the expressions are evaluated
|
||||
@ -209,9 +208,9 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, bc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
@ -276,8 +275,8 @@ constant numbers.
|
||||
It is the \[lq]input\[rq] base, or the number base used for interpreting
|
||||
input numbers.
|
||||
\f[B]ibase\f[R] is initially \f[B]10\f[R].
|
||||
If the \f[B]-s\f[R] (\f[B]\[en]standard\f[R]) and \f[B]-w\f[R]
|
||||
(\f[B]\[en]warn\f[R]) flags were not given on the command line, the max
|
||||
If the \f[B]-s\f[R] (\f[B]--standard\f[R]) and \f[B]-w\f[R]
|
||||
(\f[B]--warn\f[R]) flags were not given on the command line, the max
|
||||
allowable value for \f[B]ibase\f[R] is \f[B]36\f[R].
|
||||
Otherwise, it is \f[B]16\f[R].
|
||||
The min allowable value for \f[B]ibase\f[R] is \f[B]2\f[R].
|
||||
@ -437,7 +436,7 @@ The following arithmetic and logical operators can be used.
|
||||
They are listed in order of decreasing precedence.
|
||||
Operators in the same group have the same precedence.
|
||||
.TP
|
||||
\f[B]++\f[R] \f[B]\[en]\f[R]
|
||||
\f[B]++\f[R] \f[B]--\f[R]
|
||||
Type: Prefix and Postfix
|
||||
.RS
|
||||
.PP
|
||||
@ -520,7 +519,7 @@ Description: \f[B]boolean or\f[R]
|
||||
.PP
|
||||
The operators will be described in more detail below.
|
||||
.TP
|
||||
\f[B]++\f[R] \f[B]\[en]\f[R]
|
||||
\f[B]++\f[R] \f[B]--\f[R]
|
||||
The prefix and postfix \f[B]increment\f[R] and \f[B]decrement\f[R]
|
||||
operators behave exactly like they would in C.
|
||||
They require a named expression (see the \f[I]Named Expressions\f[R]
|
||||
@ -900,7 +899,7 @@ This is a \f[B]non-portable extension\f[R].
|
||||
.SH LIBRARY
|
||||
.PP
|
||||
All of the functions below are available when the \f[B]-l\f[R] or
|
||||
\f[B]\[en]mathlib\f[R] command-line flags are given.
|
||||
\f[B]--mathlib\f[R] command-line flags are given.
|
||||
.SS Standard Library
|
||||
.PP
|
||||
The
|
||||
@ -1205,11 +1204,11 @@ interactive mode (see the \f[B]INTERACTIVE MODE\f[R] section), since
|
||||
bc(1) resets its state (see the \f[B]RESET\f[R] section) and accepts
|
||||
more input when one of those errors occurs in interactive mode.
|
||||
This is also the case when interactive mode is forced by the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.PP
|
||||
These exit statuses allow bc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.SH INTERACTIVE MODE
|
||||
.PP
|
||||
Per the
|
||||
@ -1217,7 +1216,7 @@ standard (https://pubs.opengroup.org/onlinepubs/9699919799/utilities/bc.html),
|
||||
bc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both \f[B]stdin\f[R]
|
||||
and \f[B]stdout\f[R] are hooked to a terminal, but the \f[B]-i\f[R] flag
|
||||
and \f[B]\[en]interactive\f[R] option can turn it on in other cases.
|
||||
and \f[B]--interactive\f[R] option can turn it on in other cases.
|
||||
.PP
|
||||
In interactive mode, bc(1) attempts to recover from errors (see the
|
||||
\f[B]RESET\f[R] section), and in normal execution, flushes
|
||||
|
||||
@ -34,8 +34,7 @@ bc - arbitrary-precision decimal arithmetic language and calculator
|
||||
|
||||
# SYNOPSIS
|
||||
|
||||
**bc** [**-ghilPqsvVw**] [**--global-stacks**] [**--help**] [**--interactive**] [**--mathlib**] [**--no-prompt**] [**--quiet**] [**--standard**] [**--warn**] [**--version**] [**-e** *expr*] [**--expression**=*expr*...] [**-f** *file*...] [**-file**=*file*...]
|
||||
[*file*...]
|
||||
**bc** [**-ghilPqsvVw**] [**-\-global-stacks**] [**-\-help**] [**-\-interactive**] [**-\-mathlib**] [**-\-no-prompt**] [**-\-quiet**] [**-\-standard**] [**-\-warn**] [**-\-version**] [**-e** *expr*] [**-\-expression**=*expr*...] [**-f** *file*...] [**-\-file**=*file*...] [*file*...]
|
||||
|
||||
# DESCRIPTION
|
||||
|
||||
@ -51,7 +50,7 @@ command line and executes them before reading from **stdin**.
|
||||
|
||||
The following are the options that bc(1) accepts.
|
||||
|
||||
**-g**, **--global-stacks**
|
||||
**-g**, **-\-global-stacks**
|
||||
|
||||
Turns the globals **ibase**, **obase**, and **scale** into stacks.
|
||||
|
||||
@ -104,17 +103,17 @@ The following are the options that bc(1) accepts.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-h**, **--help**
|
||||
**-h**, **-\-help**
|
||||
|
||||
: Prints a usage message and quits.
|
||||
|
||||
**-i**, **--interactive**
|
||||
**-i**, **-\-interactive**
|
||||
|
||||
: Forces interactive mode. (See the **INTERACTIVE MODE** section.)
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-l**, **--mathlib**
|
||||
**-l**, **-\-mathlib**
|
||||
|
||||
: Sets **scale** (see the **SYNTAX** section) to **20** and loads the included
|
||||
math library before running any code, including any expressions or files
|
||||
@ -122,42 +121,42 @@ The following are the options that bc(1) accepts.
|
||||
|
||||
To learn what is in the library, see the **LIBRARY** section.
|
||||
|
||||
**-P**, **--no-prompt**
|
||||
**-P**, **-\-no-prompt**
|
||||
|
||||
: This option is a no-op.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-q**, **--quiet**
|
||||
**-q**, **-\-quiet**
|
||||
|
||||
: This option is for compatibility with the [GNU bc(1)][2]; it is a no-op.
|
||||
Without this option, GNU bc(1) prints a copyright header. This bc(1) only
|
||||
prints the copyright header if one or more of the **-v**, **-V**, or
|
||||
**--version** options are given.
|
||||
**-\-version** options are given.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-s**, **--standard**
|
||||
**-s**, **-\-standard**
|
||||
|
||||
: Process exactly the language defined by the [standard][1] and error if any
|
||||
extensions are used.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-v**, **-V**, **--version**
|
||||
**-v**, **-V**, **-\-version**
|
||||
|
||||
: Print the version information (copyright header) and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-w**, **--warn**
|
||||
**-w**, **-\-warn**
|
||||
|
||||
: Like **-s** and **--standard**, except that warnings (and not errors) are
|
||||
: Like **-s** and **-\-standard**, except that warnings (and not errors) are
|
||||
printed for non-standard extensions and execution continues normally.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-e** *expr*, **--expression**=*expr*
|
||||
**-e** *expr*, **-\-expression**=*expr*
|
||||
|
||||
: Evaluates *expr*. If multiple expressions are given, they are evaluated in
|
||||
order. If files are given as well (see below), the expressions and files are
|
||||
@ -167,14 +166,14 @@ The following are the options that bc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**, whether on the
|
||||
as an argument at least once to **-f** or **-\-file**, whether on the
|
||||
command-line or in **BC_ENV_ARGS**. However, if any other **-e**,
|
||||
**--expression**, **-f**, or **--file** arguments are given after **-f-** or
|
||||
equivalent is given, bc(1) will give a fatal error and exit.
|
||||
**-\-expression**, **-f**, or **-\-file** arguments are given after **-f-**
|
||||
or equivalent is given, bc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-f** *file*, **--file**=*file*
|
||||
**-f** *file*, **-\-file**=*file*
|
||||
|
||||
: Reads in *file* and evaluates it, line by line, as though it were read
|
||||
through **stdin**. If expressions are also given (see above), the
|
||||
@ -183,8 +182,8 @@ The following are the options that bc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**. However, if any other
|
||||
**-e**, **--expression**, **-f**, or **--file** arguments are given after
|
||||
as an argument at least once to **-f** or **-\-file**. However, if any other
|
||||
**-e**, **-\-expression**, **-f**, or **-\-file** arguments are given after
|
||||
**-f-** or equivalent is given, bc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
@ -239,8 +238,8 @@ Identifiers with more than one character (letter) are a
|
||||
|
||||
**ibase** is a global variable determining how to interpret constant numbers. It
|
||||
is the "input" base, or the number base used for interpreting input numbers.
|
||||
**ibase** is initially **10**. If the **-s** (**--standard**) and **-w**
|
||||
(**--warn**) flags were not given on the command line, the max allowable value
|
||||
**ibase** is initially **10**. If the **-s** (**-\-standard**) and **-w**
|
||||
(**-\-warn**) flags were not given on the command line, the max allowable value
|
||||
for **ibase** is **36**. Otherwise, it is **16**. The min allowable value for
|
||||
**ibase** is **2**. The max allowable value for **ibase** can be queried in
|
||||
bc(1) programs with the **maxibase()** built-in function.
|
||||
@ -359,7 +358,7 @@ The following arithmetic and logical operators can be used. They are listed in
|
||||
order of decreasing precedence. Operators in the same group have the same
|
||||
precedence.
|
||||
|
||||
**++** **--**
|
||||
**++** **-\-**
|
||||
|
||||
: Type: Prefix and Postfix
|
||||
|
||||
@ -433,7 +432,7 @@ precedence.
|
||||
|
||||
The operators will be described in more detail below.
|
||||
|
||||
**++** **--**
|
||||
**++** **-\-**
|
||||
|
||||
: The prefix and postfix **increment** and **decrement** operators behave
|
||||
exactly like they would in C. They require a named expression (see the
|
||||
@ -709,7 +708,7 @@ This is a **non-portable extension**.
|
||||
|
||||
# LIBRARY
|
||||
|
||||
All of the functions below are available when the **-l** or **--mathlib**
|
||||
All of the functions below are available when the **-l** or **-\-mathlib**
|
||||
command-line flags are given.
|
||||
|
||||
## Standard Library
|
||||
@ -985,17 +984,17 @@ The other statuses will only be returned when bc(1) is not in interactive mode
|
||||
(see the **INTERACTIVE MODE** section), since bc(1) resets its state (see the
|
||||
**RESET** section) and accepts more input when one of those errors occurs in
|
||||
interactive mode. This is also the case when interactive mode is forced by the
|
||||
**-i** flag or **--interactive** option.
|
||||
**-i** flag or **-\-interactive** option.
|
||||
|
||||
These exit statuses allow bc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the **-i** flag or
|
||||
**--interactive** option.
|
||||
**-\-interactive** option.
|
||||
|
||||
# INTERACTIVE MODE
|
||||
|
||||
Per the [standard][1], bc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both **stdin** and **stdout**
|
||||
are hooked to a terminal, but the **-i** flag and **--interactive** option can
|
||||
are hooked to a terminal, but the **-i** flag and **-\-interactive** option can
|
||||
turn it on in other cases.
|
||||
|
||||
In interactive mode, bc(1) attempts to recover from errors (see the **RESET**
|
||||
|
||||
@ -25,19 +25,18 @@
|
||||
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
.\" POSSIBILITY OF SUCH DAMAGE.
|
||||
.\"
|
||||
.TH "BC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.TH "BC" "1" "March 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.SH NAME
|
||||
.PP
|
||||
bc - arbitrary-precision decimal arithmetic language and calculator
|
||||
.SH SYNOPSIS
|
||||
.PP
|
||||
\f[B]bc\f[R] [\f[B]-ghilPqsvVw\f[R]] [\f[B]\[en]global-stacks\f[R]]
|
||||
[\f[B]\[en]help\f[R]] [\f[B]\[en]interactive\f[R]]
|
||||
[\f[B]\[en]mathlib\f[R]] [\f[B]\[en]no-prompt\f[R]]
|
||||
[\f[B]\[en]quiet\f[R]] [\f[B]\[en]standard\f[R]] [\f[B]\[en]warn\f[R]]
|
||||
[\f[B]\[en]version\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]\[en]expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]-file\f[R]=\f[I]file\f[R]\&...]
|
||||
\f[B]bc\f[R] [\f[B]-ghilPqsvVw\f[R]] [\f[B]--global-stacks\f[R]]
|
||||
[\f[B]--help\f[R]] [\f[B]--interactive\f[R]] [\f[B]--mathlib\f[R]]
|
||||
[\f[B]--no-prompt\f[R]] [\f[B]--quiet\f[R]] [\f[B]--standard\f[R]]
|
||||
[\f[B]--warn\f[R]] [\f[B]--version\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]--expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]--file\f[R]=\f[I]file\f[R]\&...]
|
||||
[\f[I]file\f[R]\&...]
|
||||
.SH DESCRIPTION
|
||||
.PP
|
||||
@ -55,7 +54,7 @@ the command line and executes them before reading from \f[B]stdin\f[R].
|
||||
.PP
|
||||
The following are the options that bc(1) accepts.
|
||||
.PP
|
||||
\f[B]-g\f[R], \f[B]\[en]global-stacks\f[R]
|
||||
\f[B]-g\f[R], \f[B]--global-stacks\f[R]
|
||||
.IP
|
||||
.nf
|
||||
\f[C]
|
||||
@ -112,10 +111,10 @@ This is a **non-portable extension**.
|
||||
\f[R]
|
||||
.fi
|
||||
.TP
|
||||
\f[B]-h\f[R], \f[B]\[en]help\f[R]
|
||||
\f[B]-h\f[R], \f[B]--help\f[R]
|
||||
Prints a usage message and quits.
|
||||
.TP
|
||||
\f[B]-i\f[R], \f[B]\[en]interactive\f[R]
|
||||
\f[B]-i\f[R], \f[B]--interactive\f[R]
|
||||
Forces interactive mode.
|
||||
(See the \f[B]INTERACTIVE MODE\f[R] section.)
|
||||
.RS
|
||||
@ -123,7 +122,7 @@ Forces interactive mode.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-l\f[R], \f[B]\[en]mathlib\f[R]
|
||||
\f[B]-l\f[R], \f[B]--mathlib\f[R]
|
||||
Sets \f[B]scale\f[R] (see the \f[B]SYNTAX\f[R] section) to \f[B]20\f[R]
|
||||
and loads the included math library before running any code, including
|
||||
any expressions or files specified on the command line.
|
||||
@ -132,25 +131,25 @@ any expressions or files specified on the command line.
|
||||
To learn what is in the library, see the \f[B]LIBRARY\f[R] section.
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-P\f[R], \f[B]\[en]no-prompt\f[R]
|
||||
\f[B]-P\f[R], \f[B]--no-prompt\f[R]
|
||||
This option is a no-op.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-q\f[R], \f[B]\[en]quiet\f[R]
|
||||
\f[B]-q\f[R], \f[B]--quiet\f[R]
|
||||
This option is for compatibility with the GNU
|
||||
bc(1) (https://www.gnu.org/software/bc/); it is a no-op.
|
||||
Without this option, GNU bc(1) prints a copyright header.
|
||||
This bc(1) only prints the copyright header if one or more of the
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], or \f[B]\[en]version\f[R] options are given.
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], or \f[B]--version\f[R] options are given.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-s\f[R], \f[B]\[en]standard\f[R]
|
||||
\f[B]-s\f[R], \f[B]--standard\f[R]
|
||||
Process exactly the language defined by the
|
||||
standard (https://pubs.opengroup.org/onlinepubs/9699919799/utilities/bc.html)
|
||||
and error if any extensions are used.
|
||||
@ -159,15 +158,15 @@ and error if any extensions are used.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]\[en]version\f[R]
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]--version\f[R]
|
||||
Print the version information (copyright header) and exit.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-w\f[R], \f[B]\[en]warn\f[R]
|
||||
Like \f[B]-s\f[R] and \f[B]\[en]standard\f[R], except that warnings (and
|
||||
\f[B]-w\f[R], \f[B]--warn\f[R]
|
||||
Like \f[B]-s\f[R] and \f[B]--standard\f[R], except that warnings (and
|
||||
not errors) are printed for non-standard extensions and execution
|
||||
continues normally.
|
||||
.RS
|
||||
@ -175,7 +174,7 @@ continues normally.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]\[en]expression\f[R]=\f[I]expr\f[R]
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]--expression\f[R]=\f[I]expr\f[R]
|
||||
Evaluates \f[I]expr\f[R].
|
||||
If multiple expressions are given, they are evaluated in order.
|
||||
If files are given as well (see below), the expressions and files are
|
||||
@ -188,17 +187,17 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, bc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R], whether on the command-line or in
|
||||
\f[B]BC_ENV_ARGS\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]\[en]file\f[R]=\f[I]file\f[R]
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]--file\f[R]=\f[I]file\f[R]
|
||||
Reads in \f[I]file\f[R] and evaluates it, line by line, as though it
|
||||
were read through \f[B]stdin\f[R].
|
||||
If expressions are also given (see above), the expressions are evaluated
|
||||
@ -209,9 +208,9 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, bc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
@ -276,8 +275,8 @@ constant numbers.
|
||||
It is the \[lq]input\[rq] base, or the number base used for interpreting
|
||||
input numbers.
|
||||
\f[B]ibase\f[R] is initially \f[B]10\f[R].
|
||||
If the \f[B]-s\f[R] (\f[B]\[en]standard\f[R]) and \f[B]-w\f[R]
|
||||
(\f[B]\[en]warn\f[R]) flags were not given on the command line, the max
|
||||
If the \f[B]-s\f[R] (\f[B]--standard\f[R]) and \f[B]-w\f[R]
|
||||
(\f[B]--warn\f[R]) flags were not given on the command line, the max
|
||||
allowable value for \f[B]ibase\f[R] is \f[B]36\f[R].
|
||||
Otherwise, it is \f[B]16\f[R].
|
||||
The min allowable value for \f[B]ibase\f[R] is \f[B]2\f[R].
|
||||
@ -437,7 +436,7 @@ The following arithmetic and logical operators can be used.
|
||||
They are listed in order of decreasing precedence.
|
||||
Operators in the same group have the same precedence.
|
||||
.TP
|
||||
\f[B]++\f[R] \f[B]\[en]\f[R]
|
||||
\f[B]++\f[R] \f[B]--\f[R]
|
||||
Type: Prefix and Postfix
|
||||
.RS
|
||||
.PP
|
||||
@ -520,7 +519,7 @@ Description: \f[B]boolean or\f[R]
|
||||
.PP
|
||||
The operators will be described in more detail below.
|
||||
.TP
|
||||
\f[B]++\f[R] \f[B]\[en]\f[R]
|
||||
\f[B]++\f[R] \f[B]--\f[R]
|
||||
The prefix and postfix \f[B]increment\f[R] and \f[B]decrement\f[R]
|
||||
operators behave exactly like they would in C.
|
||||
They require a named expression (see the \f[I]Named Expressions\f[R]
|
||||
@ -900,7 +899,7 @@ This is a \f[B]non-portable extension\f[R].
|
||||
.SH LIBRARY
|
||||
.PP
|
||||
All of the functions below are available when the \f[B]-l\f[R] or
|
||||
\f[B]\[en]mathlib\f[R] command-line flags are given.
|
||||
\f[B]--mathlib\f[R] command-line flags are given.
|
||||
.SS Standard Library
|
||||
.PP
|
||||
The
|
||||
@ -1205,11 +1204,11 @@ interactive mode (see the \f[B]INTERACTIVE MODE\f[R] section), since
|
||||
bc(1) resets its state (see the \f[B]RESET\f[R] section) and accepts
|
||||
more input when one of those errors occurs in interactive mode.
|
||||
This is also the case when interactive mode is forced by the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.PP
|
||||
These exit statuses allow bc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.SH INTERACTIVE MODE
|
||||
.PP
|
||||
Per the
|
||||
@ -1217,7 +1216,7 @@ standard (https://pubs.opengroup.org/onlinepubs/9699919799/utilities/bc.html),
|
||||
bc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both \f[B]stdin\f[R]
|
||||
and \f[B]stdout\f[R] are hooked to a terminal, but the \f[B]-i\f[R] flag
|
||||
and \f[B]\[en]interactive\f[R] option can turn it on in other cases.
|
||||
and \f[B]--interactive\f[R] option can turn it on in other cases.
|
||||
.PP
|
||||
In interactive mode, bc(1) attempts to recover from errors (see the
|
||||
\f[B]RESET\f[R] section), and in normal execution, flushes
|
||||
|
||||
@ -34,8 +34,7 @@ bc - arbitrary-precision decimal arithmetic language and calculator
|
||||
|
||||
# SYNOPSIS
|
||||
|
||||
**bc** [**-ghilPqsvVw**] [**--global-stacks**] [**--help**] [**--interactive**] [**--mathlib**] [**--no-prompt**] [**--quiet**] [**--standard**] [**--warn**] [**--version**] [**-e** *expr*] [**--expression**=*expr*...] [**-f** *file*...] [**-file**=*file*...]
|
||||
[*file*...]
|
||||
**bc** [**-ghilPqsvVw**] [**-\-global-stacks**] [**-\-help**] [**-\-interactive**] [**-\-mathlib**] [**-\-no-prompt**] [**-\-quiet**] [**-\-standard**] [**-\-warn**] [**-\-version**] [**-e** *expr*] [**-\-expression**=*expr*...] [**-f** *file*...] [**-\-file**=*file*...] [*file*...]
|
||||
|
||||
# DESCRIPTION
|
||||
|
||||
@ -51,7 +50,7 @@ command line and executes them before reading from **stdin**.
|
||||
|
||||
The following are the options that bc(1) accepts.
|
||||
|
||||
**-g**, **--global-stacks**
|
||||
**-g**, **-\-global-stacks**
|
||||
|
||||
Turns the globals **ibase**, **obase**, and **scale** into stacks.
|
||||
|
||||
@ -104,17 +103,17 @@ The following are the options that bc(1) accepts.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-h**, **--help**
|
||||
**-h**, **-\-help**
|
||||
|
||||
: Prints a usage message and quits.
|
||||
|
||||
**-i**, **--interactive**
|
||||
**-i**, **-\-interactive**
|
||||
|
||||
: Forces interactive mode. (See the **INTERACTIVE MODE** section.)
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-l**, **--mathlib**
|
||||
**-l**, **-\-mathlib**
|
||||
|
||||
: Sets **scale** (see the **SYNTAX** section) to **20** and loads the included
|
||||
math library before running any code, including any expressions or files
|
||||
@ -122,42 +121,42 @@ The following are the options that bc(1) accepts.
|
||||
|
||||
To learn what is in the library, see the **LIBRARY** section.
|
||||
|
||||
**-P**, **--no-prompt**
|
||||
**-P**, **-\-no-prompt**
|
||||
|
||||
: This option is a no-op.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-q**, **--quiet**
|
||||
**-q**, **-\-quiet**
|
||||
|
||||
: This option is for compatibility with the [GNU bc(1)][2]; it is a no-op.
|
||||
Without this option, GNU bc(1) prints a copyright header. This bc(1) only
|
||||
prints the copyright header if one or more of the **-v**, **-V**, or
|
||||
**--version** options are given.
|
||||
**-\-version** options are given.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-s**, **--standard**
|
||||
**-s**, **-\-standard**
|
||||
|
||||
: Process exactly the language defined by the [standard][1] and error if any
|
||||
extensions are used.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-v**, **-V**, **--version**
|
||||
**-v**, **-V**, **-\-version**
|
||||
|
||||
: Print the version information (copyright header) and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-w**, **--warn**
|
||||
**-w**, **-\-warn**
|
||||
|
||||
: Like **-s** and **--standard**, except that warnings (and not errors) are
|
||||
: Like **-s** and **-\-standard**, except that warnings (and not errors) are
|
||||
printed for non-standard extensions and execution continues normally.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-e** *expr*, **--expression**=*expr*
|
||||
**-e** *expr*, **-\-expression**=*expr*
|
||||
|
||||
: Evaluates *expr*. If multiple expressions are given, they are evaluated in
|
||||
order. If files are given as well (see below), the expressions and files are
|
||||
@ -167,14 +166,14 @@ The following are the options that bc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**, whether on the
|
||||
as an argument at least once to **-f** or **-\-file**, whether on the
|
||||
command-line or in **BC_ENV_ARGS**. However, if any other **-e**,
|
||||
**--expression**, **-f**, or **--file** arguments are given after **-f-** or
|
||||
equivalent is given, bc(1) will give a fatal error and exit.
|
||||
**-\-expression**, **-f**, or **-\-file** arguments are given after **-f-**
|
||||
or equivalent is given, bc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-f** *file*, **--file**=*file*
|
||||
**-f** *file*, **-\-file**=*file*
|
||||
|
||||
: Reads in *file* and evaluates it, line by line, as though it were read
|
||||
through **stdin**. If expressions are also given (see above), the
|
||||
@ -183,8 +182,8 @@ The following are the options that bc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**. However, if any other
|
||||
**-e**, **--expression**, **-f**, or **--file** arguments are given after
|
||||
as an argument at least once to **-f** or **-\-file**. However, if any other
|
||||
**-e**, **-\-expression**, **-f**, or **-\-file** arguments are given after
|
||||
**-f-** or equivalent is given, bc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
@ -239,8 +238,8 @@ Identifiers with more than one character (letter) are a
|
||||
|
||||
**ibase** is a global variable determining how to interpret constant numbers. It
|
||||
is the "input" base, or the number base used for interpreting input numbers.
|
||||
**ibase** is initially **10**. If the **-s** (**--standard**) and **-w**
|
||||
(**--warn**) flags were not given on the command line, the max allowable value
|
||||
**ibase** is initially **10**. If the **-s** (**-\-standard**) and **-w**
|
||||
(**-\-warn**) flags were not given on the command line, the max allowable value
|
||||
for **ibase** is **36**. Otherwise, it is **16**. The min allowable value for
|
||||
**ibase** is **2**. The max allowable value for **ibase** can be queried in
|
||||
bc(1) programs with the **maxibase()** built-in function.
|
||||
@ -359,7 +358,7 @@ The following arithmetic and logical operators can be used. They are listed in
|
||||
order of decreasing precedence. Operators in the same group have the same
|
||||
precedence.
|
||||
|
||||
**++** **--**
|
||||
**++** **-\-**
|
||||
|
||||
: Type: Prefix and Postfix
|
||||
|
||||
@ -433,7 +432,7 @@ precedence.
|
||||
|
||||
The operators will be described in more detail below.
|
||||
|
||||
**++** **--**
|
||||
**++** **-\-**
|
||||
|
||||
: The prefix and postfix **increment** and **decrement** operators behave
|
||||
exactly like they would in C. They require a named expression (see the
|
||||
@ -709,7 +708,7 @@ This is a **non-portable extension**.
|
||||
|
||||
# LIBRARY
|
||||
|
||||
All of the functions below are available when the **-l** or **--mathlib**
|
||||
All of the functions below are available when the **-l** or **-\-mathlib**
|
||||
command-line flags are given.
|
||||
|
||||
## Standard Library
|
||||
@ -985,17 +984,17 @@ The other statuses will only be returned when bc(1) is not in interactive mode
|
||||
(see the **INTERACTIVE MODE** section), since bc(1) resets its state (see the
|
||||
**RESET** section) and accepts more input when one of those errors occurs in
|
||||
interactive mode. This is also the case when interactive mode is forced by the
|
||||
**-i** flag or **--interactive** option.
|
||||
**-i** flag or **-\-interactive** option.
|
||||
|
||||
These exit statuses allow bc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the **-i** flag or
|
||||
**--interactive** option.
|
||||
**-\-interactive** option.
|
||||
|
||||
# INTERACTIVE MODE
|
||||
|
||||
Per the [standard][1], bc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both **stdin** and **stdout**
|
||||
are hooked to a terminal, but the **-i** flag and **--interactive** option can
|
||||
are hooked to a terminal, but the **-i** flag and **-\-interactive** option can
|
||||
turn it on in other cases.
|
||||
|
||||
In interactive mode, bc(1) attempts to recover from errors (see the **RESET**
|
||||
|
||||
@ -25,19 +25,18 @@
|
||||
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
.\" POSSIBILITY OF SUCH DAMAGE.
|
||||
.\"
|
||||
.TH "BC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.TH "BC" "1" "March 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.SH NAME
|
||||
.PP
|
||||
bc - arbitrary-precision decimal arithmetic language and calculator
|
||||
.SH SYNOPSIS
|
||||
.PP
|
||||
\f[B]bc\f[R] [\f[B]-ghilPqsvVw\f[R]] [\f[B]\[en]global-stacks\f[R]]
|
||||
[\f[B]\[en]help\f[R]] [\f[B]\[en]interactive\f[R]]
|
||||
[\f[B]\[en]mathlib\f[R]] [\f[B]\[en]no-prompt\f[R]]
|
||||
[\f[B]\[en]quiet\f[R]] [\f[B]\[en]standard\f[R]] [\f[B]\[en]warn\f[R]]
|
||||
[\f[B]\[en]version\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]\[en]expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]-file\f[R]=\f[I]file\f[R]\&...]
|
||||
\f[B]bc\f[R] [\f[B]-ghilPqsvVw\f[R]] [\f[B]--global-stacks\f[R]]
|
||||
[\f[B]--help\f[R]] [\f[B]--interactive\f[R]] [\f[B]--mathlib\f[R]]
|
||||
[\f[B]--no-prompt\f[R]] [\f[B]--quiet\f[R]] [\f[B]--standard\f[R]]
|
||||
[\f[B]--warn\f[R]] [\f[B]--version\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]--expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]--file\f[R]=\f[I]file\f[R]\&...]
|
||||
[\f[I]file\f[R]\&...]
|
||||
.SH DESCRIPTION
|
||||
.PP
|
||||
@ -58,7 +57,7 @@ This bc(1) is a drop-in replacement for \f[I]any\f[R] bc(1), including
|
||||
.PP
|
||||
The following are the options that bc(1) accepts.
|
||||
.PP
|
||||
\f[B]-g\f[R], \f[B]\[en]global-stacks\f[R]
|
||||
\f[B]-g\f[R], \f[B]--global-stacks\f[R]
|
||||
.IP
|
||||
.nf
|
||||
\f[C]
|
||||
@ -115,10 +114,10 @@ This is a **non-portable extension**.
|
||||
\f[R]
|
||||
.fi
|
||||
.TP
|
||||
\f[B]-h\f[R], \f[B]\[en]help\f[R]
|
||||
\f[B]-h\f[R], \f[B]--help\f[R]
|
||||
Prints a usage message and quits.
|
||||
.TP
|
||||
\f[B]-i\f[R], \f[B]\[en]interactive\f[R]
|
||||
\f[B]-i\f[R], \f[B]--interactive\f[R]
|
||||
Forces interactive mode.
|
||||
(See the \f[B]INTERACTIVE MODE\f[R] section.)
|
||||
.RS
|
||||
@ -126,7 +125,7 @@ Forces interactive mode.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-l\f[R], \f[B]\[en]mathlib\f[R]
|
||||
\f[B]-l\f[R], \f[B]--mathlib\f[R]
|
||||
Sets \f[B]scale\f[R] (see the \f[B]SYNTAX\f[R] section) to \f[B]20\f[R]
|
||||
and loads the included math library before running any code, including
|
||||
any expressions or files specified on the command line.
|
||||
@ -135,7 +134,7 @@ any expressions or files specified on the command line.
|
||||
To learn what is in the library, see the \f[B]LIBRARY\f[R] section.
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-P\f[R], \f[B]\[en]no-prompt\f[R]
|
||||
\f[B]-P\f[R], \f[B]--no-prompt\f[R]
|
||||
Disables the prompt in TTY mode.
|
||||
(The prompt is only enabled in TTY mode.
|
||||
See the \f[B]TTY MODE\f[R] section) This is mostly for those users that
|
||||
@ -147,18 +146,18 @@ Most of those users would want to put this option in
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-q\f[R], \f[B]\[en]quiet\f[R]
|
||||
\f[B]-q\f[R], \f[B]--quiet\f[R]
|
||||
This option is for compatibility with the GNU
|
||||
bc(1) (https://www.gnu.org/software/bc/); it is a no-op.
|
||||
Without this option, GNU bc(1) prints a copyright header.
|
||||
This bc(1) only prints the copyright header if one or more of the
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], or \f[B]\[en]version\f[R] options are given.
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], or \f[B]--version\f[R] options are given.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-s\f[R], \f[B]\[en]standard\f[R]
|
||||
\f[B]-s\f[R], \f[B]--standard\f[R]
|
||||
Process exactly the language defined by the
|
||||
standard (https://pubs.opengroup.org/onlinepubs/9699919799/utilities/bc.html)
|
||||
and error if any extensions are used.
|
||||
@ -167,15 +166,15 @@ and error if any extensions are used.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]\[en]version\f[R]
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]--version\f[R]
|
||||
Print the version information (copyright header) and exit.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-w\f[R], \f[B]\[en]warn\f[R]
|
||||
Like \f[B]-s\f[R] and \f[B]\[en]standard\f[R], except that warnings (and
|
||||
\f[B]-w\f[R], \f[B]--warn\f[R]
|
||||
Like \f[B]-s\f[R] and \f[B]--standard\f[R], except that warnings (and
|
||||
not errors) are printed for non-standard extensions and execution
|
||||
continues normally.
|
||||
.RS
|
||||
@ -183,7 +182,7 @@ continues normally.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]\[en]expression\f[R]=\f[I]expr\f[R]
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]--expression\f[R]=\f[I]expr\f[R]
|
||||
Evaluates \f[I]expr\f[R].
|
||||
If multiple expressions are given, they are evaluated in order.
|
||||
If files are given as well (see below), the expressions and files are
|
||||
@ -196,17 +195,17 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, bc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R], whether on the command-line or in
|
||||
\f[B]BC_ENV_ARGS\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]\[en]file\f[R]=\f[I]file\f[R]
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]--file\f[R]=\f[I]file\f[R]
|
||||
Reads in \f[I]file\f[R] and evaluates it, line by line, as though it
|
||||
were read through \f[B]stdin\f[R].
|
||||
If expressions are also given (see above), the expressions are evaluated
|
||||
@ -217,9 +216,9 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, bc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
@ -284,8 +283,8 @@ constant numbers.
|
||||
It is the \[lq]input\[rq] base, or the number base used for interpreting
|
||||
input numbers.
|
||||
\f[B]ibase\f[R] is initially \f[B]10\f[R].
|
||||
If the \f[B]-s\f[R] (\f[B]\[en]standard\f[R]) and \f[B]-w\f[R]
|
||||
(\f[B]\[en]warn\f[R]) flags were not given on the command line, the max
|
||||
If the \f[B]-s\f[R] (\f[B]--standard\f[R]) and \f[B]-w\f[R]
|
||||
(\f[B]--warn\f[R]) flags were not given on the command line, the max
|
||||
allowable value for \f[B]ibase\f[R] is \f[B]36\f[R].
|
||||
Otherwise, it is \f[B]16\f[R].
|
||||
The min allowable value for \f[B]ibase\f[R] is \f[B]2\f[R].
|
||||
@ -445,7 +444,7 @@ The following arithmetic and logical operators can be used.
|
||||
They are listed in order of decreasing precedence.
|
||||
Operators in the same group have the same precedence.
|
||||
.TP
|
||||
\f[B]++\f[R] \f[B]\[en]\f[R]
|
||||
\f[B]++\f[R] \f[B]--\f[R]
|
||||
Type: Prefix and Postfix
|
||||
.RS
|
||||
.PP
|
||||
@ -528,7 +527,7 @@ Description: \f[B]boolean or\f[R]
|
||||
.PP
|
||||
The operators will be described in more detail below.
|
||||
.TP
|
||||
\f[B]++\f[R] \f[B]\[en]\f[R]
|
||||
\f[B]++\f[R] \f[B]--\f[R]
|
||||
The prefix and postfix \f[B]increment\f[R] and \f[B]decrement\f[R]
|
||||
operators behave exactly like they would in C.
|
||||
They require a named expression (see the \f[I]Named Expressions\f[R]
|
||||
@ -908,7 +907,7 @@ This is a \f[B]non-portable extension\f[R].
|
||||
.SH LIBRARY
|
||||
.PP
|
||||
All of the functions below are available when the \f[B]-l\f[R] or
|
||||
\f[B]\[en]mathlib\f[R] command-line flags are given.
|
||||
\f[B]--mathlib\f[R] command-line flags are given.
|
||||
.SS Standard Library
|
||||
.PP
|
||||
The
|
||||
@ -1213,11 +1212,11 @@ interactive mode (see the \f[B]INTERACTIVE MODE\f[R] section), since
|
||||
bc(1) resets its state (see the \f[B]RESET\f[R] section) and accepts
|
||||
more input when one of those errors occurs in interactive mode.
|
||||
This is also the case when interactive mode is forced by the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.PP
|
||||
These exit statuses allow bc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.SH INTERACTIVE MODE
|
||||
.PP
|
||||
Per the
|
||||
@ -1225,7 +1224,7 @@ standard (https://pubs.opengroup.org/onlinepubs/9699919799/utilities/bc.html),
|
||||
bc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both \f[B]stdin\f[R]
|
||||
and \f[B]stdout\f[R] are hooked to a terminal, but the \f[B]-i\f[R] flag
|
||||
and \f[B]\[en]interactive\f[R] option can turn it on in other cases.
|
||||
and \f[B]--interactive\f[R] option can turn it on in other cases.
|
||||
.PP
|
||||
In interactive mode, bc(1) attempts to recover from errors (see the
|
||||
\f[B]RESET\f[R] section), and in normal execution, flushes
|
||||
|
||||
@ -34,8 +34,7 @@ bc - arbitrary-precision decimal arithmetic language and calculator
|
||||
|
||||
# SYNOPSIS
|
||||
|
||||
**bc** [**-ghilPqsvVw**] [**--global-stacks**] [**--help**] [**--interactive**] [**--mathlib**] [**--no-prompt**] [**--quiet**] [**--standard**] [**--warn**] [**--version**] [**-e** *expr*] [**--expression**=*expr*...] [**-f** *file*...] [**-file**=*file*...]
|
||||
[*file*...]
|
||||
**bc** [**-ghilPqsvVw**] [**-\-global-stacks**] [**-\-help**] [**-\-interactive**] [**-\-mathlib**] [**-\-no-prompt**] [**-\-quiet**] [**-\-standard**] [**-\-warn**] [**-\-version**] [**-e** *expr*] [**-\-expression**=*expr*...] [**-f** *file*...] [**-\-file**=*file*...] [*file*...]
|
||||
|
||||
# DESCRIPTION
|
||||
|
||||
@ -54,7 +53,7 @@ especially) the GNU bc(1).
|
||||
|
||||
The following are the options that bc(1) accepts.
|
||||
|
||||
**-g**, **--global-stacks**
|
||||
**-g**, **-\-global-stacks**
|
||||
|
||||
Turns the globals **ibase**, **obase**, and **scale** into stacks.
|
||||
|
||||
@ -107,17 +106,17 @@ The following are the options that bc(1) accepts.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-h**, **--help**
|
||||
**-h**, **-\-help**
|
||||
|
||||
: Prints a usage message and quits.
|
||||
|
||||
**-i**, **--interactive**
|
||||
**-i**, **-\-interactive**
|
||||
|
||||
: Forces interactive mode. (See the **INTERACTIVE MODE** section.)
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-l**, **--mathlib**
|
||||
**-l**, **-\-mathlib**
|
||||
|
||||
: Sets **scale** (see the **SYNTAX** section) to **20** and loads the included
|
||||
math library before running any code, including any expressions or files
|
||||
@ -125,7 +124,7 @@ The following are the options that bc(1) accepts.
|
||||
|
||||
To learn what is in the library, see the **LIBRARY** section.
|
||||
|
||||
**-P**, **--no-prompt**
|
||||
**-P**, **-\-no-prompt**
|
||||
|
||||
: Disables the prompt in TTY mode. (The prompt is only enabled in TTY mode.
|
||||
See the **TTY MODE** section) This is mostly for those users that do not
|
||||
@ -135,36 +134,36 @@ The following are the options that bc(1) accepts.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-q**, **--quiet**
|
||||
**-q**, **-\-quiet**
|
||||
|
||||
: This option is for compatibility with the [GNU bc(1)][2]; it is a no-op.
|
||||
Without this option, GNU bc(1) prints a copyright header. This bc(1) only
|
||||
prints the copyright header if one or more of the **-v**, **-V**, or
|
||||
**--version** options are given.
|
||||
**-\-version** options are given.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-s**, **--standard**
|
||||
**-s**, **-\-standard**
|
||||
|
||||
: Process exactly the language defined by the [standard][1] and error if any
|
||||
extensions are used.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-v**, **-V**, **--version**
|
||||
**-v**, **-V**, **-\-version**
|
||||
|
||||
: Print the version information (copyright header) and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-w**, **--warn**
|
||||
**-w**, **-\-warn**
|
||||
|
||||
: Like **-s** and **--standard**, except that warnings (and not errors) are
|
||||
: Like **-s** and **-\-standard**, except that warnings (and not errors) are
|
||||
printed for non-standard extensions and execution continues normally.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-e** *expr*, **--expression**=*expr*
|
||||
**-e** *expr*, **-\-expression**=*expr*
|
||||
|
||||
: Evaluates *expr*. If multiple expressions are given, they are evaluated in
|
||||
order. If files are given as well (see below), the expressions and files are
|
||||
@ -174,14 +173,14 @@ The following are the options that bc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**, whether on the
|
||||
as an argument at least once to **-f** or **-\-file**, whether on the
|
||||
command-line or in **BC_ENV_ARGS**. However, if any other **-e**,
|
||||
**--expression**, **-f**, or **--file** arguments are given after **-f-** or
|
||||
equivalent is given, bc(1) will give a fatal error and exit.
|
||||
**-\-expression**, **-f**, or **-\-file** arguments are given after **-f-**
|
||||
or equivalent is given, bc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-f** *file*, **--file**=*file*
|
||||
**-f** *file*, **-\-file**=*file*
|
||||
|
||||
: Reads in *file* and evaluates it, line by line, as though it were read
|
||||
through **stdin**. If expressions are also given (see above), the
|
||||
@ -190,8 +189,8 @@ The following are the options that bc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**. However, if any other
|
||||
**-e**, **--expression**, **-f**, or **--file** arguments are given after
|
||||
as an argument at least once to **-f** or **-\-file**. However, if any other
|
||||
**-e**, **-\-expression**, **-f**, or **-\-file** arguments are given after
|
||||
**-f-** or equivalent is given, bc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
@ -246,8 +245,8 @@ Identifiers with more than one character (letter) are a
|
||||
|
||||
**ibase** is a global variable determining how to interpret constant numbers. It
|
||||
is the "input" base, or the number base used for interpreting input numbers.
|
||||
**ibase** is initially **10**. If the **-s** (**--standard**) and **-w**
|
||||
(**--warn**) flags were not given on the command line, the max allowable value
|
||||
**ibase** is initially **10**. If the **-s** (**-\-standard**) and **-w**
|
||||
(**-\-warn**) flags were not given on the command line, the max allowable value
|
||||
for **ibase** is **36**. Otherwise, it is **16**. The min allowable value for
|
||||
**ibase** is **2**. The max allowable value for **ibase** can be queried in
|
||||
bc(1) programs with the **maxibase()** built-in function.
|
||||
@ -366,7 +365,7 @@ The following arithmetic and logical operators can be used. They are listed in
|
||||
order of decreasing precedence. Operators in the same group have the same
|
||||
precedence.
|
||||
|
||||
**++** **--**
|
||||
**++** **-\-**
|
||||
|
||||
: Type: Prefix and Postfix
|
||||
|
||||
@ -440,7 +439,7 @@ precedence.
|
||||
|
||||
The operators will be described in more detail below.
|
||||
|
||||
**++** **--**
|
||||
**++** **-\-**
|
||||
|
||||
: The prefix and postfix **increment** and **decrement** operators behave
|
||||
exactly like they would in C. They require a named expression (see the
|
||||
@ -716,7 +715,7 @@ This is a **non-portable extension**.
|
||||
|
||||
# LIBRARY
|
||||
|
||||
All of the functions below are available when the **-l** or **--mathlib**
|
||||
All of the functions below are available when the **-l** or **-\-mathlib**
|
||||
command-line flags are given.
|
||||
|
||||
## Standard Library
|
||||
@ -992,17 +991,17 @@ The other statuses will only be returned when bc(1) is not in interactive mode
|
||||
(see the **INTERACTIVE MODE** section), since bc(1) resets its state (see the
|
||||
**RESET** section) and accepts more input when one of those errors occurs in
|
||||
interactive mode. This is also the case when interactive mode is forced by the
|
||||
**-i** flag or **--interactive** option.
|
||||
**-i** flag or **-\-interactive** option.
|
||||
|
||||
These exit statuses allow bc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the **-i** flag or
|
||||
**--interactive** option.
|
||||
**-\-interactive** option.
|
||||
|
||||
# INTERACTIVE MODE
|
||||
|
||||
Per the [standard][1], bc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both **stdin** and **stdout**
|
||||
are hooked to a terminal, but the **-i** flag and **--interactive** option can
|
||||
are hooked to a terminal, but the **-i** flag and **-\-interactive** option can
|
||||
turn it on in other cases.
|
||||
|
||||
In interactive mode, bc(1) attempts to recover from errors (see the **RESET**
|
||||
|
||||
@ -25,19 +25,18 @@
|
||||
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
.\" POSSIBILITY OF SUCH DAMAGE.
|
||||
.\"
|
||||
.TH "BC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.TH "BC" "1" "March 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.SH NAME
|
||||
.PP
|
||||
bc - arbitrary-precision decimal arithmetic language and calculator
|
||||
.SH SYNOPSIS
|
||||
.PP
|
||||
\f[B]bc\f[R] [\f[B]-ghilPqsvVw\f[R]] [\f[B]\[en]global-stacks\f[R]]
|
||||
[\f[B]\[en]help\f[R]] [\f[B]\[en]interactive\f[R]]
|
||||
[\f[B]\[en]mathlib\f[R]] [\f[B]\[en]no-prompt\f[R]]
|
||||
[\f[B]\[en]quiet\f[R]] [\f[B]\[en]standard\f[R]] [\f[B]\[en]warn\f[R]]
|
||||
[\f[B]\[en]version\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]\[en]expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]-file\f[R]=\f[I]file\f[R]\&...]
|
||||
\f[B]bc\f[R] [\f[B]-ghilPqsvVw\f[R]] [\f[B]--global-stacks\f[R]]
|
||||
[\f[B]--help\f[R]] [\f[B]--interactive\f[R]] [\f[B]--mathlib\f[R]]
|
||||
[\f[B]--no-prompt\f[R]] [\f[B]--quiet\f[R]] [\f[B]--standard\f[R]]
|
||||
[\f[B]--warn\f[R]] [\f[B]--version\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]--expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]--file\f[R]=\f[I]file\f[R]\&...]
|
||||
[\f[I]file\f[R]\&...]
|
||||
.SH DESCRIPTION
|
||||
.PP
|
||||
@ -58,7 +57,7 @@ This bc(1) is a drop-in replacement for \f[I]any\f[R] bc(1), including
|
||||
.PP
|
||||
The following are the options that bc(1) accepts.
|
||||
.PP
|
||||
\f[B]-g\f[R], \f[B]\[en]global-stacks\f[R]
|
||||
\f[B]-g\f[R], \f[B]--global-stacks\f[R]
|
||||
.IP
|
||||
.nf
|
||||
\f[C]
|
||||
@ -115,10 +114,10 @@ This is a **non-portable extension**.
|
||||
\f[R]
|
||||
.fi
|
||||
.TP
|
||||
\f[B]-h\f[R], \f[B]\[en]help\f[R]
|
||||
\f[B]-h\f[R], \f[B]--help\f[R]
|
||||
Prints a usage message and quits.
|
||||
.TP
|
||||
\f[B]-i\f[R], \f[B]\[en]interactive\f[R]
|
||||
\f[B]-i\f[R], \f[B]--interactive\f[R]
|
||||
Forces interactive mode.
|
||||
(See the \f[B]INTERACTIVE MODE\f[R] section.)
|
||||
.RS
|
||||
@ -126,7 +125,7 @@ Forces interactive mode.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-l\f[R], \f[B]\[en]mathlib\f[R]
|
||||
\f[B]-l\f[R], \f[B]--mathlib\f[R]
|
||||
Sets \f[B]scale\f[R] (see the \f[B]SYNTAX\f[R] section) to \f[B]20\f[R]
|
||||
and loads the included math library before running any code, including
|
||||
any expressions or files specified on the command line.
|
||||
@ -135,25 +134,25 @@ any expressions or files specified on the command line.
|
||||
To learn what is in the library, see the \f[B]LIBRARY\f[R] section.
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-P\f[R], \f[B]\[en]no-prompt\f[R]
|
||||
\f[B]-P\f[R], \f[B]--no-prompt\f[R]
|
||||
This option is a no-op.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-q\f[R], \f[B]\[en]quiet\f[R]
|
||||
\f[B]-q\f[R], \f[B]--quiet\f[R]
|
||||
This option is for compatibility with the GNU
|
||||
bc(1) (https://www.gnu.org/software/bc/); it is a no-op.
|
||||
Without this option, GNU bc(1) prints a copyright header.
|
||||
This bc(1) only prints the copyright header if one or more of the
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], or \f[B]\[en]version\f[R] options are given.
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], or \f[B]--version\f[R] options are given.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-s\f[R], \f[B]\[en]standard\f[R]
|
||||
\f[B]-s\f[R], \f[B]--standard\f[R]
|
||||
Process exactly the language defined by the
|
||||
standard (https://pubs.opengroup.org/onlinepubs/9699919799/utilities/bc.html)
|
||||
and error if any extensions are used.
|
||||
@ -162,15 +161,15 @@ and error if any extensions are used.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]\[en]version\f[R]
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]--version\f[R]
|
||||
Print the version information (copyright header) and exit.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-w\f[R], \f[B]\[en]warn\f[R]
|
||||
Like \f[B]-s\f[R] and \f[B]\[en]standard\f[R], except that warnings (and
|
||||
\f[B]-w\f[R], \f[B]--warn\f[R]
|
||||
Like \f[B]-s\f[R] and \f[B]--standard\f[R], except that warnings (and
|
||||
not errors) are printed for non-standard extensions and execution
|
||||
continues normally.
|
||||
.RS
|
||||
@ -178,7 +177,7 @@ continues normally.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]\[en]expression\f[R]=\f[I]expr\f[R]
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]--expression\f[R]=\f[I]expr\f[R]
|
||||
Evaluates \f[I]expr\f[R].
|
||||
If multiple expressions are given, they are evaluated in order.
|
||||
If files are given as well (see below), the expressions and files are
|
||||
@ -191,17 +190,17 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, bc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R], whether on the command-line or in
|
||||
\f[B]BC_ENV_ARGS\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]\[en]file\f[R]=\f[I]file\f[R]
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]--file\f[R]=\f[I]file\f[R]
|
||||
Reads in \f[I]file\f[R] and evaluates it, line by line, as though it
|
||||
were read through \f[B]stdin\f[R].
|
||||
If expressions are also given (see above), the expressions are evaluated
|
||||
@ -212,9 +211,9 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, bc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
@ -279,8 +278,8 @@ constant numbers.
|
||||
It is the \[lq]input\[rq] base, or the number base used for interpreting
|
||||
input numbers.
|
||||
\f[B]ibase\f[R] is initially \f[B]10\f[R].
|
||||
If the \f[B]-s\f[R] (\f[B]\[en]standard\f[R]) and \f[B]-w\f[R]
|
||||
(\f[B]\[en]warn\f[R]) flags were not given on the command line, the max
|
||||
If the \f[B]-s\f[R] (\f[B]--standard\f[R]) and \f[B]-w\f[R]
|
||||
(\f[B]--warn\f[R]) flags were not given on the command line, the max
|
||||
allowable value for \f[B]ibase\f[R] is \f[B]36\f[R].
|
||||
Otherwise, it is \f[B]16\f[R].
|
||||
The min allowable value for \f[B]ibase\f[R] is \f[B]2\f[R].
|
||||
@ -440,7 +439,7 @@ The following arithmetic and logical operators can be used.
|
||||
They are listed in order of decreasing precedence.
|
||||
Operators in the same group have the same precedence.
|
||||
.TP
|
||||
\f[B]++\f[R] \f[B]\[en]\f[R]
|
||||
\f[B]++\f[R] \f[B]--\f[R]
|
||||
Type: Prefix and Postfix
|
||||
.RS
|
||||
.PP
|
||||
@ -523,7 +522,7 @@ Description: \f[B]boolean or\f[R]
|
||||
.PP
|
||||
The operators will be described in more detail below.
|
||||
.TP
|
||||
\f[B]++\f[R] \f[B]\[en]\f[R]
|
||||
\f[B]++\f[R] \f[B]--\f[R]
|
||||
The prefix and postfix \f[B]increment\f[R] and \f[B]decrement\f[R]
|
||||
operators behave exactly like they would in C.
|
||||
They require a named expression (see the \f[I]Named Expressions\f[R]
|
||||
@ -903,7 +902,7 @@ This is a \f[B]non-portable extension\f[R].
|
||||
.SH LIBRARY
|
||||
.PP
|
||||
All of the functions below are available when the \f[B]-l\f[R] or
|
||||
\f[B]\[en]mathlib\f[R] command-line flags are given.
|
||||
\f[B]--mathlib\f[R] command-line flags are given.
|
||||
.SS Standard Library
|
||||
.PP
|
||||
The
|
||||
@ -1208,11 +1207,11 @@ interactive mode (see the \f[B]INTERACTIVE MODE\f[R] section), since
|
||||
bc(1) resets its state (see the \f[B]RESET\f[R] section) and accepts
|
||||
more input when one of those errors occurs in interactive mode.
|
||||
This is also the case when interactive mode is forced by the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.PP
|
||||
These exit statuses allow bc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.SH INTERACTIVE MODE
|
||||
.PP
|
||||
Per the
|
||||
@ -1220,7 +1219,7 @@ standard (https://pubs.opengroup.org/onlinepubs/9699919799/utilities/bc.html),
|
||||
bc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both \f[B]stdin\f[R]
|
||||
and \f[B]stdout\f[R] are hooked to a terminal, but the \f[B]-i\f[R] flag
|
||||
and \f[B]\[en]interactive\f[R] option can turn it on in other cases.
|
||||
and \f[B]--interactive\f[R] option can turn it on in other cases.
|
||||
.PP
|
||||
In interactive mode, bc(1) attempts to recover from errors (see the
|
||||
\f[B]RESET\f[R] section), and in normal execution, flushes
|
||||
|
||||
@ -34,8 +34,7 @@ bc - arbitrary-precision decimal arithmetic language and calculator
|
||||
|
||||
# SYNOPSIS
|
||||
|
||||
**bc** [**-ghilPqsvVw**] [**--global-stacks**] [**--help**] [**--interactive**] [**--mathlib**] [**--no-prompt**] [**--quiet**] [**--standard**] [**--warn**] [**--version**] [**-e** *expr*] [**--expression**=*expr*...] [**-f** *file*...] [**-file**=*file*...]
|
||||
[*file*...]
|
||||
**bc** [**-ghilPqsvVw**] [**-\-global-stacks**] [**-\-help**] [**-\-interactive**] [**-\-mathlib**] [**-\-no-prompt**] [**-\-quiet**] [**-\-standard**] [**-\-warn**] [**-\-version**] [**-e** *expr*] [**-\-expression**=*expr*...] [**-f** *file*...] [**-\-file**=*file*...] [*file*...]
|
||||
|
||||
# DESCRIPTION
|
||||
|
||||
@ -54,7 +53,7 @@ especially) the GNU bc(1).
|
||||
|
||||
The following are the options that bc(1) accepts.
|
||||
|
||||
**-g**, **--global-stacks**
|
||||
**-g**, **-\-global-stacks**
|
||||
|
||||
Turns the globals **ibase**, **obase**, and **scale** into stacks.
|
||||
|
||||
@ -107,17 +106,17 @@ The following are the options that bc(1) accepts.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-h**, **--help**
|
||||
**-h**, **-\-help**
|
||||
|
||||
: Prints a usage message and quits.
|
||||
|
||||
**-i**, **--interactive**
|
||||
**-i**, **-\-interactive**
|
||||
|
||||
: Forces interactive mode. (See the **INTERACTIVE MODE** section.)
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-l**, **--mathlib**
|
||||
**-l**, **-\-mathlib**
|
||||
|
||||
: Sets **scale** (see the **SYNTAX** section) to **20** and loads the included
|
||||
math library before running any code, including any expressions or files
|
||||
@ -125,42 +124,42 @@ The following are the options that bc(1) accepts.
|
||||
|
||||
To learn what is in the library, see the **LIBRARY** section.
|
||||
|
||||
**-P**, **--no-prompt**
|
||||
**-P**, **-\-no-prompt**
|
||||
|
||||
: This option is a no-op.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-q**, **--quiet**
|
||||
**-q**, **-\-quiet**
|
||||
|
||||
: This option is for compatibility with the [GNU bc(1)][2]; it is a no-op.
|
||||
Without this option, GNU bc(1) prints a copyright header. This bc(1) only
|
||||
prints the copyright header if one or more of the **-v**, **-V**, or
|
||||
**--version** options are given.
|
||||
**-\-version** options are given.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-s**, **--standard**
|
||||
**-s**, **-\-standard**
|
||||
|
||||
: Process exactly the language defined by the [standard][1] and error if any
|
||||
extensions are used.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-v**, **-V**, **--version**
|
||||
**-v**, **-V**, **-\-version**
|
||||
|
||||
: Print the version information (copyright header) and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-w**, **--warn**
|
||||
**-w**, **-\-warn**
|
||||
|
||||
: Like **-s** and **--standard**, except that warnings (and not errors) are
|
||||
: Like **-s** and **-\-standard**, except that warnings (and not errors) are
|
||||
printed for non-standard extensions and execution continues normally.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-e** *expr*, **--expression**=*expr*
|
||||
**-e** *expr*, **-\-expression**=*expr*
|
||||
|
||||
: Evaluates *expr*. If multiple expressions are given, they are evaluated in
|
||||
order. If files are given as well (see below), the expressions and files are
|
||||
@ -170,14 +169,14 @@ The following are the options that bc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**, whether on the
|
||||
as an argument at least once to **-f** or **-\-file**, whether on the
|
||||
command-line or in **BC_ENV_ARGS**. However, if any other **-e**,
|
||||
**--expression**, **-f**, or **--file** arguments are given after **-f-** or
|
||||
equivalent is given, bc(1) will give a fatal error and exit.
|
||||
**-\-expression**, **-f**, or **-\-file** arguments are given after **-f-**
|
||||
or equivalent is given, bc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-f** *file*, **--file**=*file*
|
||||
**-f** *file*, **-\-file**=*file*
|
||||
|
||||
: Reads in *file* and evaluates it, line by line, as though it were read
|
||||
through **stdin**. If expressions are also given (see above), the
|
||||
@ -186,8 +185,8 @@ The following are the options that bc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**. However, if any other
|
||||
**-e**, **--expression**, **-f**, or **--file** arguments are given after
|
||||
as an argument at least once to **-f** or **-\-file**. However, if any other
|
||||
**-e**, **-\-expression**, **-f**, or **-\-file** arguments are given after
|
||||
**-f-** or equivalent is given, bc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
@ -242,8 +241,8 @@ Identifiers with more than one character (letter) are a
|
||||
|
||||
**ibase** is a global variable determining how to interpret constant numbers. It
|
||||
is the "input" base, or the number base used for interpreting input numbers.
|
||||
**ibase** is initially **10**. If the **-s** (**--standard**) and **-w**
|
||||
(**--warn**) flags were not given on the command line, the max allowable value
|
||||
**ibase** is initially **10**. If the **-s** (**-\-standard**) and **-w**
|
||||
(**-\-warn**) flags were not given on the command line, the max allowable value
|
||||
for **ibase** is **36**. Otherwise, it is **16**. The min allowable value for
|
||||
**ibase** is **2**. The max allowable value for **ibase** can be queried in
|
||||
bc(1) programs with the **maxibase()** built-in function.
|
||||
@ -362,7 +361,7 @@ The following arithmetic and logical operators can be used. They are listed in
|
||||
order of decreasing precedence. Operators in the same group have the same
|
||||
precedence.
|
||||
|
||||
**++** **--**
|
||||
**++** **-\-**
|
||||
|
||||
: Type: Prefix and Postfix
|
||||
|
||||
@ -436,7 +435,7 @@ precedence.
|
||||
|
||||
The operators will be described in more detail below.
|
||||
|
||||
**++** **--**
|
||||
**++** **-\-**
|
||||
|
||||
: The prefix and postfix **increment** and **decrement** operators behave
|
||||
exactly like they would in C. They require a named expression (see the
|
||||
@ -712,7 +711,7 @@ This is a **non-portable extension**.
|
||||
|
||||
# LIBRARY
|
||||
|
||||
All of the functions below are available when the **-l** or **--mathlib**
|
||||
All of the functions below are available when the **-l** or **-\-mathlib**
|
||||
command-line flags are given.
|
||||
|
||||
## Standard Library
|
||||
@ -988,17 +987,17 @@ The other statuses will only be returned when bc(1) is not in interactive mode
|
||||
(see the **INTERACTIVE MODE** section), since bc(1) resets its state (see the
|
||||
**RESET** section) and accepts more input when one of those errors occurs in
|
||||
interactive mode. This is also the case when interactive mode is forced by the
|
||||
**-i** flag or **--interactive** option.
|
||||
**-i** flag or **-\-interactive** option.
|
||||
|
||||
These exit statuses allow bc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the **-i** flag or
|
||||
**--interactive** option.
|
||||
**-\-interactive** option.
|
||||
|
||||
# INTERACTIVE MODE
|
||||
|
||||
Per the [standard][1], bc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both **stdin** and **stdout**
|
||||
are hooked to a terminal, but the **-i** flag and **--interactive** option can
|
||||
are hooked to a terminal, but the **-i** flag and **-\-interactive** option can
|
||||
turn it on in other cases.
|
||||
|
||||
In interactive mode, bc(1) attempts to recover from errors (see the **RESET**
|
||||
|
||||
@ -25,19 +25,18 @@
|
||||
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
.\" POSSIBILITY OF SUCH DAMAGE.
|
||||
.\"
|
||||
.TH "BC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.TH "BC" "1" "March 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.SH NAME
|
||||
.PP
|
||||
bc - arbitrary-precision decimal arithmetic language and calculator
|
||||
.SH SYNOPSIS
|
||||
.PP
|
||||
\f[B]bc\f[R] [\f[B]-ghilPqsvVw\f[R]] [\f[B]\[en]global-stacks\f[R]]
|
||||
[\f[B]\[en]help\f[R]] [\f[B]\[en]interactive\f[R]]
|
||||
[\f[B]\[en]mathlib\f[R]] [\f[B]\[en]no-prompt\f[R]]
|
||||
[\f[B]\[en]quiet\f[R]] [\f[B]\[en]standard\f[R]] [\f[B]\[en]warn\f[R]]
|
||||
[\f[B]\[en]version\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]\[en]expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]-file\f[R]=\f[I]file\f[R]\&...]
|
||||
\f[B]bc\f[R] [\f[B]-ghilPqsvVw\f[R]] [\f[B]--global-stacks\f[R]]
|
||||
[\f[B]--help\f[R]] [\f[B]--interactive\f[R]] [\f[B]--mathlib\f[R]]
|
||||
[\f[B]--no-prompt\f[R]] [\f[B]--quiet\f[R]] [\f[B]--standard\f[R]]
|
||||
[\f[B]--warn\f[R]] [\f[B]--version\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]--expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]--file\f[R]=\f[I]file\f[R]\&...]
|
||||
[\f[I]file\f[R]\&...]
|
||||
.SH DESCRIPTION
|
||||
.PP
|
||||
@ -58,7 +57,7 @@ This bc(1) is a drop-in replacement for \f[I]any\f[R] bc(1), including
|
||||
.PP
|
||||
The following are the options that bc(1) accepts.
|
||||
.PP
|
||||
\f[B]-g\f[R], \f[B]\[en]global-stacks\f[R]
|
||||
\f[B]-g\f[R], \f[B]--global-stacks\f[R]
|
||||
.IP
|
||||
.nf
|
||||
\f[C]
|
||||
@ -115,10 +114,10 @@ This is a **non-portable extension**.
|
||||
\f[R]
|
||||
.fi
|
||||
.TP
|
||||
\f[B]-h\f[R], \f[B]\[en]help\f[R]
|
||||
\f[B]-h\f[R], \f[B]--help\f[R]
|
||||
Prints a usage message and quits.
|
||||
.TP
|
||||
\f[B]-i\f[R], \f[B]\[en]interactive\f[R]
|
||||
\f[B]-i\f[R], \f[B]--interactive\f[R]
|
||||
Forces interactive mode.
|
||||
(See the \f[B]INTERACTIVE MODE\f[R] section.)
|
||||
.RS
|
||||
@ -126,7 +125,7 @@ Forces interactive mode.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-l\f[R], \f[B]\[en]mathlib\f[R]
|
||||
\f[B]-l\f[R], \f[B]--mathlib\f[R]
|
||||
Sets \f[B]scale\f[R] (see the \f[B]SYNTAX\f[R] section) to \f[B]20\f[R]
|
||||
and loads the included math library before running any code, including
|
||||
any expressions or files specified on the command line.
|
||||
@ -135,25 +134,25 @@ any expressions or files specified on the command line.
|
||||
To learn what is in the library, see the \f[B]LIBRARY\f[R] section.
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-P\f[R], \f[B]\[en]no-prompt\f[R]
|
||||
\f[B]-P\f[R], \f[B]--no-prompt\f[R]
|
||||
This option is a no-op.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-q\f[R], \f[B]\[en]quiet\f[R]
|
||||
\f[B]-q\f[R], \f[B]--quiet\f[R]
|
||||
This option is for compatibility with the GNU
|
||||
bc(1) (https://www.gnu.org/software/bc/); it is a no-op.
|
||||
Without this option, GNU bc(1) prints a copyright header.
|
||||
This bc(1) only prints the copyright header if one or more of the
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], or \f[B]\[en]version\f[R] options are given.
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], or \f[B]--version\f[R] options are given.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-s\f[R], \f[B]\[en]standard\f[R]
|
||||
\f[B]-s\f[R], \f[B]--standard\f[R]
|
||||
Process exactly the language defined by the
|
||||
standard (https://pubs.opengroup.org/onlinepubs/9699919799/utilities/bc.html)
|
||||
and error if any extensions are used.
|
||||
@ -162,15 +161,15 @@ and error if any extensions are used.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]\[en]version\f[R]
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]--version\f[R]
|
||||
Print the version information (copyright header) and exit.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-w\f[R], \f[B]\[en]warn\f[R]
|
||||
Like \f[B]-s\f[R] and \f[B]\[en]standard\f[R], except that warnings (and
|
||||
\f[B]-w\f[R], \f[B]--warn\f[R]
|
||||
Like \f[B]-s\f[R] and \f[B]--standard\f[R], except that warnings (and
|
||||
not errors) are printed for non-standard extensions and execution
|
||||
continues normally.
|
||||
.RS
|
||||
@ -178,7 +177,7 @@ continues normally.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]\[en]expression\f[R]=\f[I]expr\f[R]
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]--expression\f[R]=\f[I]expr\f[R]
|
||||
Evaluates \f[I]expr\f[R].
|
||||
If multiple expressions are given, they are evaluated in order.
|
||||
If files are given as well (see below), the expressions and files are
|
||||
@ -191,17 +190,17 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, bc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R], whether on the command-line or in
|
||||
\f[B]BC_ENV_ARGS\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]\[en]file\f[R]=\f[I]file\f[R]
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]--file\f[R]=\f[I]file\f[R]
|
||||
Reads in \f[I]file\f[R] and evaluates it, line by line, as though it
|
||||
were read through \f[B]stdin\f[R].
|
||||
If expressions are also given (see above), the expressions are evaluated
|
||||
@ -212,9 +211,9 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, bc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
@ -279,8 +278,8 @@ constant numbers.
|
||||
It is the \[lq]input\[rq] base, or the number base used for interpreting
|
||||
input numbers.
|
||||
\f[B]ibase\f[R] is initially \f[B]10\f[R].
|
||||
If the \f[B]-s\f[R] (\f[B]\[en]standard\f[R]) and \f[B]-w\f[R]
|
||||
(\f[B]\[en]warn\f[R]) flags were not given on the command line, the max
|
||||
If the \f[B]-s\f[R] (\f[B]--standard\f[R]) and \f[B]-w\f[R]
|
||||
(\f[B]--warn\f[R]) flags were not given on the command line, the max
|
||||
allowable value for \f[B]ibase\f[R] is \f[B]36\f[R].
|
||||
Otherwise, it is \f[B]16\f[R].
|
||||
The min allowable value for \f[B]ibase\f[R] is \f[B]2\f[R].
|
||||
@ -440,7 +439,7 @@ The following arithmetic and logical operators can be used.
|
||||
They are listed in order of decreasing precedence.
|
||||
Operators in the same group have the same precedence.
|
||||
.TP
|
||||
\f[B]++\f[R] \f[B]\[en]\f[R]
|
||||
\f[B]++\f[R] \f[B]--\f[R]
|
||||
Type: Prefix and Postfix
|
||||
.RS
|
||||
.PP
|
||||
@ -523,7 +522,7 @@ Description: \f[B]boolean or\f[R]
|
||||
.PP
|
||||
The operators will be described in more detail below.
|
||||
.TP
|
||||
\f[B]++\f[R] \f[B]\[en]\f[R]
|
||||
\f[B]++\f[R] \f[B]--\f[R]
|
||||
The prefix and postfix \f[B]increment\f[R] and \f[B]decrement\f[R]
|
||||
operators behave exactly like they would in C.
|
||||
They require a named expression (see the \f[I]Named Expressions\f[R]
|
||||
@ -903,7 +902,7 @@ This is a \f[B]non-portable extension\f[R].
|
||||
.SH LIBRARY
|
||||
.PP
|
||||
All of the functions below are available when the \f[B]-l\f[R] or
|
||||
\f[B]\[en]mathlib\f[R] command-line flags are given.
|
||||
\f[B]--mathlib\f[R] command-line flags are given.
|
||||
.SS Standard Library
|
||||
.PP
|
||||
The
|
||||
@ -1208,11 +1207,11 @@ interactive mode (see the \f[B]INTERACTIVE MODE\f[R] section), since
|
||||
bc(1) resets its state (see the \f[B]RESET\f[R] section) and accepts
|
||||
more input when one of those errors occurs in interactive mode.
|
||||
This is also the case when interactive mode is forced by the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.PP
|
||||
These exit statuses allow bc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.SH INTERACTIVE MODE
|
||||
.PP
|
||||
Per the
|
||||
@ -1220,7 +1219,7 @@ standard (https://pubs.opengroup.org/onlinepubs/9699919799/utilities/bc.html),
|
||||
bc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both \f[B]stdin\f[R]
|
||||
and \f[B]stdout\f[R] are hooked to a terminal, but the \f[B]-i\f[R] flag
|
||||
and \f[B]\[en]interactive\f[R] option can turn it on in other cases.
|
||||
and \f[B]--interactive\f[R] option can turn it on in other cases.
|
||||
.PP
|
||||
In interactive mode, bc(1) attempts to recover from errors (see the
|
||||
\f[B]RESET\f[R] section), and in normal execution, flushes
|
||||
|
||||
@ -34,8 +34,7 @@ bc - arbitrary-precision decimal arithmetic language and calculator
|
||||
|
||||
# SYNOPSIS
|
||||
|
||||
**bc** [**-ghilPqsvVw**] [**--global-stacks**] [**--help**] [**--interactive**] [**--mathlib**] [**--no-prompt**] [**--quiet**] [**--standard**] [**--warn**] [**--version**] [**-e** *expr*] [**--expression**=*expr*...] [**-f** *file*...] [**-file**=*file*...]
|
||||
[*file*...]
|
||||
**bc** [**-ghilPqsvVw**] [**-\-global-stacks**] [**-\-help**] [**-\-interactive**] [**-\-mathlib**] [**-\-no-prompt**] [**-\-quiet**] [**-\-standard**] [**-\-warn**] [**-\-version**] [**-e** *expr*] [**-\-expression**=*expr*...] [**-f** *file*...] [**-\-file**=*file*...] [*file*...]
|
||||
|
||||
# DESCRIPTION
|
||||
|
||||
@ -54,7 +53,7 @@ especially) the GNU bc(1).
|
||||
|
||||
The following are the options that bc(1) accepts.
|
||||
|
||||
**-g**, **--global-stacks**
|
||||
**-g**, **-\-global-stacks**
|
||||
|
||||
Turns the globals **ibase**, **obase**, and **scale** into stacks.
|
||||
|
||||
@ -107,17 +106,17 @@ The following are the options that bc(1) accepts.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-h**, **--help**
|
||||
**-h**, **-\-help**
|
||||
|
||||
: Prints a usage message and quits.
|
||||
|
||||
**-i**, **--interactive**
|
||||
**-i**, **-\-interactive**
|
||||
|
||||
: Forces interactive mode. (See the **INTERACTIVE MODE** section.)
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-l**, **--mathlib**
|
||||
**-l**, **-\-mathlib**
|
||||
|
||||
: Sets **scale** (see the **SYNTAX** section) to **20** and loads the included
|
||||
math library before running any code, including any expressions or files
|
||||
@ -125,42 +124,42 @@ The following are the options that bc(1) accepts.
|
||||
|
||||
To learn what is in the library, see the **LIBRARY** section.
|
||||
|
||||
**-P**, **--no-prompt**
|
||||
**-P**, **-\-no-prompt**
|
||||
|
||||
: This option is a no-op.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-q**, **--quiet**
|
||||
**-q**, **-\-quiet**
|
||||
|
||||
: This option is for compatibility with the [GNU bc(1)][2]; it is a no-op.
|
||||
Without this option, GNU bc(1) prints a copyright header. This bc(1) only
|
||||
prints the copyright header if one or more of the **-v**, **-V**, or
|
||||
**--version** options are given.
|
||||
**-\-version** options are given.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-s**, **--standard**
|
||||
**-s**, **-\-standard**
|
||||
|
||||
: Process exactly the language defined by the [standard][1] and error if any
|
||||
extensions are used.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-v**, **-V**, **--version**
|
||||
**-v**, **-V**, **-\-version**
|
||||
|
||||
: Print the version information (copyright header) and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-w**, **--warn**
|
||||
**-w**, **-\-warn**
|
||||
|
||||
: Like **-s** and **--standard**, except that warnings (and not errors) are
|
||||
: Like **-s** and **-\-standard**, except that warnings (and not errors) are
|
||||
printed for non-standard extensions and execution continues normally.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-e** *expr*, **--expression**=*expr*
|
||||
**-e** *expr*, **-\-expression**=*expr*
|
||||
|
||||
: Evaluates *expr*. If multiple expressions are given, they are evaluated in
|
||||
order. If files are given as well (see below), the expressions and files are
|
||||
@ -170,14 +169,14 @@ The following are the options that bc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**, whether on the
|
||||
as an argument at least once to **-f** or **-\-file**, whether on the
|
||||
command-line or in **BC_ENV_ARGS**. However, if any other **-e**,
|
||||
**--expression**, **-f**, or **--file** arguments are given after **-f-** or
|
||||
equivalent is given, bc(1) will give a fatal error and exit.
|
||||
**-\-expression**, **-f**, or **-\-file** arguments are given after **-f-**
|
||||
or equivalent is given, bc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-f** *file*, **--file**=*file*
|
||||
**-f** *file*, **-\-file**=*file*
|
||||
|
||||
: Reads in *file* and evaluates it, line by line, as though it were read
|
||||
through **stdin**. If expressions are also given (see above), the
|
||||
@ -186,8 +185,8 @@ The following are the options that bc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**. However, if any other
|
||||
**-e**, **--expression**, **-f**, or **--file** arguments are given after
|
||||
as an argument at least once to **-f** or **-\-file**. However, if any other
|
||||
**-e**, **-\-expression**, **-f**, or **-\-file** arguments are given after
|
||||
**-f-** or equivalent is given, bc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
@ -242,8 +241,8 @@ Identifiers with more than one character (letter) are a
|
||||
|
||||
**ibase** is a global variable determining how to interpret constant numbers. It
|
||||
is the "input" base, or the number base used for interpreting input numbers.
|
||||
**ibase** is initially **10**. If the **-s** (**--standard**) and **-w**
|
||||
(**--warn**) flags were not given on the command line, the max allowable value
|
||||
**ibase** is initially **10**. If the **-s** (**-\-standard**) and **-w**
|
||||
(**-\-warn**) flags were not given on the command line, the max allowable value
|
||||
for **ibase** is **36**. Otherwise, it is **16**. The min allowable value for
|
||||
**ibase** is **2**. The max allowable value for **ibase** can be queried in
|
||||
bc(1) programs with the **maxibase()** built-in function.
|
||||
@ -362,7 +361,7 @@ The following arithmetic and logical operators can be used. They are listed in
|
||||
order of decreasing precedence. Operators in the same group have the same
|
||||
precedence.
|
||||
|
||||
**++** **--**
|
||||
**++** **-\-**
|
||||
|
||||
: Type: Prefix and Postfix
|
||||
|
||||
@ -436,7 +435,7 @@ precedence.
|
||||
|
||||
The operators will be described in more detail below.
|
||||
|
||||
**++** **--**
|
||||
**++** **-\-**
|
||||
|
||||
: The prefix and postfix **increment** and **decrement** operators behave
|
||||
exactly like they would in C. They require a named expression (see the
|
||||
@ -712,7 +711,7 @@ This is a **non-portable extension**.
|
||||
|
||||
# LIBRARY
|
||||
|
||||
All of the functions below are available when the **-l** or **--mathlib**
|
||||
All of the functions below are available when the **-l** or **-\-mathlib**
|
||||
command-line flags are given.
|
||||
|
||||
## Standard Library
|
||||
@ -988,17 +987,17 @@ The other statuses will only be returned when bc(1) is not in interactive mode
|
||||
(see the **INTERACTIVE MODE** section), since bc(1) resets its state (see the
|
||||
**RESET** section) and accepts more input when one of those errors occurs in
|
||||
interactive mode. This is also the case when interactive mode is forced by the
|
||||
**-i** flag or **--interactive** option.
|
||||
**-i** flag or **-\-interactive** option.
|
||||
|
||||
These exit statuses allow bc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the **-i** flag or
|
||||
**--interactive** option.
|
||||
**-\-interactive** option.
|
||||
|
||||
# INTERACTIVE MODE
|
||||
|
||||
Per the [standard][1], bc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both **stdin** and **stdout**
|
||||
are hooked to a terminal, but the **-i** flag and **--interactive** option can
|
||||
are hooked to a terminal, but the **-i** flag and **-\-interactive** option can
|
||||
turn it on in other cases.
|
||||
|
||||
In interactive mode, bc(1) attempts to recover from errors (see the **RESET**
|
||||
|
||||
@ -25,19 +25,18 @@
|
||||
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
.\" POSSIBILITY OF SUCH DAMAGE.
|
||||
.\"
|
||||
.TH "BC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.TH "BC" "1" "March 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.SH NAME
|
||||
.PP
|
||||
bc - arbitrary-precision decimal arithmetic language and calculator
|
||||
.SH SYNOPSIS
|
||||
.PP
|
||||
\f[B]bc\f[R] [\f[B]-ghilPqsvVw\f[R]] [\f[B]\[en]global-stacks\f[R]]
|
||||
[\f[B]\[en]help\f[R]] [\f[B]\[en]interactive\f[R]]
|
||||
[\f[B]\[en]mathlib\f[R]] [\f[B]\[en]no-prompt\f[R]]
|
||||
[\f[B]\[en]quiet\f[R]] [\f[B]\[en]standard\f[R]] [\f[B]\[en]warn\f[R]]
|
||||
[\f[B]\[en]version\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]\[en]expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]-file\f[R]=\f[I]file\f[R]\&...]
|
||||
\f[B]bc\f[R] [\f[B]-ghilPqsvVw\f[R]] [\f[B]--global-stacks\f[R]]
|
||||
[\f[B]--help\f[R]] [\f[B]--interactive\f[R]] [\f[B]--mathlib\f[R]]
|
||||
[\f[B]--no-prompt\f[R]] [\f[B]--quiet\f[R]] [\f[B]--standard\f[R]]
|
||||
[\f[B]--warn\f[R]] [\f[B]--version\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]--expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]--file\f[R]=\f[I]file\f[R]\&...]
|
||||
[\f[I]file\f[R]\&...]
|
||||
.SH DESCRIPTION
|
||||
.PP
|
||||
@ -55,7 +54,7 @@ the command line and executes them before reading from \f[B]stdin\f[R].
|
||||
.PP
|
||||
The following are the options that bc(1) accepts.
|
||||
.TP
|
||||
\f[B]-g\f[R], \f[B]\[en]global-stacks\f[R]
|
||||
\f[B]-g\f[R], \f[B]--global-stacks\f[R]
|
||||
Turns the globals \f[B]ibase\f[R], \f[B]obase\f[R], \f[B]scale\f[R], and
|
||||
\f[B]seed\f[R] into stacks.
|
||||
.RS
|
||||
@ -147,10 +146,10 @@ is ignored.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-h\f[R], \f[B]\[en]help\f[R]
|
||||
\f[B]-h\f[R], \f[B]--help\f[R]
|
||||
Prints a usage message and quits.
|
||||
.TP
|
||||
\f[B]-i\f[R], \f[B]\[en]interactive\f[R]
|
||||
\f[B]-i\f[R], \f[B]--interactive\f[R]
|
||||
Forces interactive mode.
|
||||
(See the \f[B]INTERACTIVE MODE\f[R] section.)
|
||||
.RS
|
||||
@ -158,7 +157,7 @@ Forces interactive mode.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-l\f[R], \f[B]\[en]mathlib\f[R]
|
||||
\f[B]-l\f[R], \f[B]--mathlib\f[R]
|
||||
Sets \f[B]scale\f[R] (see the \f[B]SYNTAX\f[R] section) to \f[B]20\f[R]
|
||||
and loads the included math library and the extended math library before
|
||||
running any code, including any expressions or files specified on the
|
||||
@ -168,7 +167,7 @@ command line.
|
||||
To learn what is in the libraries, see the \f[B]LIBRARY\f[R] section.
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-P\f[R], \f[B]\[en]no-prompt\f[R]
|
||||
\f[B]-P\f[R], \f[B]--no-prompt\f[R]
|
||||
Disables the prompt in TTY mode.
|
||||
(The prompt is only enabled in TTY mode.
|
||||
See the \f[B]TTY MODE\f[R] section) This is mostly for those users that
|
||||
@ -180,18 +179,18 @@ Most of those users would want to put this option in
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-q\f[R], \f[B]\[en]quiet\f[R]
|
||||
\f[B]-q\f[R], \f[B]--quiet\f[R]
|
||||
This option is for compatibility with the GNU
|
||||
bc(1) (https://www.gnu.org/software/bc/); it is a no-op.
|
||||
Without this option, GNU bc(1) prints a copyright header.
|
||||
This bc(1) only prints the copyright header if one or more of the
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], or \f[B]\[en]version\f[R] options are given.
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], or \f[B]--version\f[R] options are given.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-s\f[R], \f[B]\[en]standard\f[R]
|
||||
\f[B]-s\f[R], \f[B]--standard\f[R]
|
||||
Process exactly the language defined by the
|
||||
standard (https://pubs.opengroup.org/onlinepubs/9699919799/utilities/bc.html)
|
||||
and error if any extensions are used.
|
||||
@ -200,15 +199,15 @@ and error if any extensions are used.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]\[en]version\f[R]
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]--version\f[R]
|
||||
Print the version information (copyright header) and exit.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-w\f[R], \f[B]\[en]warn\f[R]
|
||||
Like \f[B]-s\f[R] and \f[B]\[en]standard\f[R], except that warnings (and
|
||||
\f[B]-w\f[R], \f[B]--warn\f[R]
|
||||
Like \f[B]-s\f[R] and \f[B]--standard\f[R], except that warnings (and
|
||||
not errors) are printed for non-standard extensions and execution
|
||||
continues normally.
|
||||
.RS
|
||||
@ -216,7 +215,7 @@ continues normally.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]\[en]expression\f[R]=\f[I]expr\f[R]
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]--expression\f[R]=\f[I]expr\f[R]
|
||||
Evaluates \f[I]expr\f[R].
|
||||
If multiple expressions are given, they are evaluated in order.
|
||||
If files are given as well (see below), the expressions and files are
|
||||
@ -229,17 +228,17 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, bc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R], whether on the command-line or in
|
||||
\f[B]BC_ENV_ARGS\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]\[en]file\f[R]=\f[I]file\f[R]
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]--file\f[R]=\f[I]file\f[R]
|
||||
Reads in \f[I]file\f[R] and evaluates it, line by line, as though it
|
||||
were read through \f[B]stdin\f[R].
|
||||
If expressions are also given (see above), the expressions are evaluated
|
||||
@ -250,9 +249,9 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, bc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
@ -317,8 +316,8 @@ constant numbers.
|
||||
It is the \[lq]input\[rq] base, or the number base used for interpreting
|
||||
input numbers.
|
||||
\f[B]ibase\f[R] is initially \f[B]10\f[R].
|
||||
If the \f[B]-s\f[R] (\f[B]\[en]standard\f[R]) and \f[B]-w\f[R]
|
||||
(\f[B]\[en]warn\f[R]) flags were not given on the command line, the max
|
||||
If the \f[B]-s\f[R] (\f[B]--standard\f[R]) and \f[B]-w\f[R]
|
||||
(\f[B]--warn\f[R]) flags were not given on the command line, the max
|
||||
allowable value for \f[B]ibase\f[R] is \f[B]36\f[R].
|
||||
Otherwise, it is \f[B]16\f[R].
|
||||
The min allowable value for \f[B]ibase\f[R] is \f[B]2\f[R].
|
||||
@ -577,7 +576,7 @@ The following arithmetic and logical operators can be used.
|
||||
They are listed in order of decreasing precedence.
|
||||
Operators in the same group have the same precedence.
|
||||
.TP
|
||||
\f[B]++\f[R] \f[B]\[en]\f[R]
|
||||
\f[B]++\f[R] \f[B]--\f[R]
|
||||
Type: Prefix and Postfix
|
||||
.RS
|
||||
.PP
|
||||
@ -687,7 +686,7 @@ Description: \f[B]boolean or\f[R]
|
||||
.PP
|
||||
The operators will be described in more detail below.
|
||||
.TP
|
||||
\f[B]++\f[R] \f[B]\[en]\f[R]
|
||||
\f[B]++\f[R] \f[B]--\f[R]
|
||||
The prefix and postfix \f[B]increment\f[R] and \f[B]decrement\f[R]
|
||||
operators behave exactly like they would in C.
|
||||
They require a named expression (see the \f[I]Named Expressions\f[R]
|
||||
@ -1133,7 +1132,7 @@ This is a \f[B]non-portable extension\f[R].
|
||||
.PP
|
||||
All of the functions below, including the functions in the extended math
|
||||
library (see the \f[I]Extended Library\f[R] subsection below), are
|
||||
available when the \f[B]-l\f[R] or \f[B]\[en]mathlib\f[R] command-line
|
||||
available when the \f[B]-l\f[R] or \f[B]--mathlib\f[R] command-line
|
||||
flags are given, except that the extended math library is not available
|
||||
when the \f[B]-s\f[R] option, the \f[B]-w\f[R] option, or equivalents
|
||||
are given.
|
||||
@ -1194,7 +1193,7 @@ Functions\f[R] subsection below).
|
||||
.SS Extended Library
|
||||
.PP
|
||||
The extended library is \f[I]not\f[R] loaded when the
|
||||
\f[B]-s\f[R]/\f[B]\[en]standard\f[R] or \f[B]-w\f[R]/\f[B]\[en]warn\f[R]
|
||||
\f[B]-s\f[R]/\f[B]--standard\f[R] or \f[B]-w\f[R]/\f[B]--warn\f[R]
|
||||
options are given since they are not part of the library defined by the
|
||||
standard (https://pubs.opengroup.org/onlinepubs/9699919799/utilities/bc.html).
|
||||
.PP
|
||||
@ -1952,11 +1951,11 @@ interactive mode (see the \f[B]INTERACTIVE MODE\f[R] section), since
|
||||
bc(1) resets its state (see the \f[B]RESET\f[R] section) and accepts
|
||||
more input when one of those errors occurs in interactive mode.
|
||||
This is also the case when interactive mode is forced by the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.PP
|
||||
These exit statuses allow bc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.SH INTERACTIVE MODE
|
||||
.PP
|
||||
Per the
|
||||
@ -1964,7 +1963,7 @@ standard (https://pubs.opengroup.org/onlinepubs/9699919799/utilities/bc.html),
|
||||
bc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both \f[B]stdin\f[R]
|
||||
and \f[B]stdout\f[R] are hooked to a terminal, but the \f[B]-i\f[R] flag
|
||||
and \f[B]\[en]interactive\f[R] option can turn it on in other cases.
|
||||
and \f[B]--interactive\f[R] option can turn it on in other cases.
|
||||
.PP
|
||||
In interactive mode, bc(1) attempts to recover from errors (see the
|
||||
\f[B]RESET\f[R] section), and in normal execution, flushes
|
||||
|
||||
@ -34,8 +34,7 @@ bc - arbitrary-precision decimal arithmetic language and calculator
|
||||
|
||||
# SYNOPSIS
|
||||
|
||||
**bc** [**-ghilPqsvVw**] [**--global-stacks**] [**--help**] [**--interactive**] [**--mathlib**] [**--no-prompt**] [**--quiet**] [**--standard**] [**--warn**] [**--version**] [**-e** *expr*] [**--expression**=*expr*...] [**-f** *file*...] [**-file**=*file*...]
|
||||
[*file*...]
|
||||
**bc** [**-ghilPqsvVw**] [**-\-global-stacks**] [**-\-help**] [**-\-interactive**] [**-\-mathlib**] [**-\-no-prompt**] [**-\-quiet**] [**-\-standard**] [**-\-warn**] [**-\-version**] [**-e** *expr*] [**-\-expression**=*expr*...] [**-f** *file*...] [**-\-file**=*file*...] [*file*...]
|
||||
|
||||
# DESCRIPTION
|
||||
|
||||
@ -51,7 +50,7 @@ command line and executes them before reading from **stdin**.
|
||||
|
||||
The following are the options that bc(1) accepts.
|
||||
|
||||
**-g**, **--global-stacks**
|
||||
**-g**, **-\-global-stacks**
|
||||
|
||||
: Turns the globals **ibase**, **obase**, **scale**, and **seed** into stacks.
|
||||
|
||||
@ -119,17 +118,17 @@ The following are the options that bc(1) accepts.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-h**, **--help**
|
||||
**-h**, **-\-help**
|
||||
|
||||
: Prints a usage message and quits.
|
||||
|
||||
**-i**, **--interactive**
|
||||
**-i**, **-\-interactive**
|
||||
|
||||
: Forces interactive mode. (See the **INTERACTIVE MODE** section.)
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-l**, **--mathlib**
|
||||
**-l**, **-\-mathlib**
|
||||
|
||||
: Sets **scale** (see the **SYNTAX** section) to **20** and loads the included
|
||||
math library and the extended math library before running any code,
|
||||
@ -137,7 +136,7 @@ The following are the options that bc(1) accepts.
|
||||
|
||||
To learn what is in the libraries, see the **LIBRARY** section.
|
||||
|
||||
**-P**, **--no-prompt**
|
||||
**-P**, **-\-no-prompt**
|
||||
|
||||
: Disables the prompt in TTY mode. (The prompt is only enabled in TTY mode.
|
||||
See the **TTY MODE** section) This is mostly for those users that do not
|
||||
@ -147,36 +146,36 @@ The following are the options that bc(1) accepts.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-q**, **--quiet**
|
||||
**-q**, **-\-quiet**
|
||||
|
||||
: This option is for compatibility with the [GNU bc(1)][2]; it is a no-op.
|
||||
Without this option, GNU bc(1) prints a copyright header. This bc(1) only
|
||||
prints the copyright header if one or more of the **-v**, **-V**, or
|
||||
**--version** options are given.
|
||||
**-\-version** options are given.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-s**, **--standard**
|
||||
**-s**, **-\-standard**
|
||||
|
||||
: Process exactly the language defined by the [standard][1] and error if any
|
||||
extensions are used.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-v**, **-V**, **--version**
|
||||
**-v**, **-V**, **-\-version**
|
||||
|
||||
: Print the version information (copyright header) and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-w**, **--warn**
|
||||
**-w**, **-\-warn**
|
||||
|
||||
: Like **-s** and **--standard**, except that warnings (and not errors) are
|
||||
: Like **-s** and **-\-standard**, except that warnings (and not errors) are
|
||||
printed for non-standard extensions and execution continues normally.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-e** *expr*, **--expression**=*expr*
|
||||
**-e** *expr*, **-\-expression**=*expr*
|
||||
|
||||
: Evaluates *expr*. If multiple expressions are given, they are evaluated in
|
||||
order. If files are given as well (see below), the expressions and files are
|
||||
@ -186,14 +185,14 @@ The following are the options that bc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**, whether on the
|
||||
as an argument at least once to **-f** or **-\-file**, whether on the
|
||||
command-line or in **BC_ENV_ARGS**. However, if any other **-e**,
|
||||
**--expression**, **-f**, or **--file** arguments are given after **-f-** or
|
||||
equivalent is given, bc(1) will give a fatal error and exit.
|
||||
**-\-expression**, **-f**, or **-\-file** arguments are given after **-f-**
|
||||
or equivalent is given, bc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-f** *file*, **--file**=*file*
|
||||
**-f** *file*, **-\-file**=*file*
|
||||
|
||||
: Reads in *file* and evaluates it, line by line, as though it were read
|
||||
through **stdin**. If expressions are also given (see above), the
|
||||
@ -202,8 +201,8 @@ The following are the options that bc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**. However, if any other
|
||||
**-e**, **--expression**, **-f**, or **--file** arguments are given after
|
||||
as an argument at least once to **-f** or **-\-file**. However, if any other
|
||||
**-e**, **-\-expression**, **-f**, or **-\-file** arguments are given after
|
||||
**-f-** or equivalent is given, bc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
@ -258,8 +257,8 @@ Identifiers with more than one character (letter) are a
|
||||
|
||||
**ibase** is a global variable determining how to interpret constant numbers. It
|
||||
is the "input" base, or the number base used for interpreting input numbers.
|
||||
**ibase** is initially **10**. If the **-s** (**--standard**) and **-w**
|
||||
(**--warn**) flags were not given on the command line, the max allowable value
|
||||
**ibase** is initially **10**. If the **-s** (**-\-standard**) and **-w**
|
||||
(**-\-warn**) flags were not given on the command line, the max allowable value
|
||||
for **ibase** is **36**. Otherwise, it is **16**. The min allowable value for
|
||||
**ibase** is **2**. The max allowable value for **ibase** can be queried in
|
||||
bc(1) programs with the **maxibase()** built-in function.
|
||||
@ -449,7 +448,7 @@ The following arithmetic and logical operators can be used. They are listed in
|
||||
order of decreasing precedence. Operators in the same group have the same
|
||||
precedence.
|
||||
|
||||
**++** **--**
|
||||
**++** **-\-**
|
||||
|
||||
: Type: Prefix and Postfix
|
||||
|
||||
@ -547,7 +546,7 @@ precedence.
|
||||
|
||||
The operators will be described in more detail below.
|
||||
|
||||
**++** **--**
|
||||
**++** **-\-**
|
||||
|
||||
: The prefix and postfix **increment** and **decrement** operators behave
|
||||
exactly like they would in C. They require a named expression (see the
|
||||
@ -878,7 +877,7 @@ This is a **non-portable extension**.
|
||||
|
||||
All of the functions below, including the functions in the extended math
|
||||
library (see the *Extended Library* subsection below), are available when the
|
||||
**-l** or **--mathlib** command-line flags are given, except that the extended
|
||||
**-l** or **-\-mathlib** command-line flags are given, except that the extended
|
||||
math library is not available when the **-s** option, the **-w** option, or
|
||||
equivalents are given.
|
||||
|
||||
@ -930,8 +929,8 @@ The [standard][1] defines the following functions for the math library:
|
||||
|
||||
## Extended Library
|
||||
|
||||
The extended library is *not* loaded when the **-s**/**--standard** or
|
||||
**-w**/**--warn** options are given since they are not part of the library
|
||||
The extended library is *not* loaded when the **-s**/**-\-standard** or
|
||||
**-w**/**-\-warn** options are given since they are not part of the library
|
||||
defined by the [standard][1].
|
||||
|
||||
The extended library is a **non-portable extension**.
|
||||
@ -1599,17 +1598,17 @@ The other statuses will only be returned when bc(1) is not in interactive mode
|
||||
(see the **INTERACTIVE MODE** section), since bc(1) resets its state (see the
|
||||
**RESET** section) and accepts more input when one of those errors occurs in
|
||||
interactive mode. This is also the case when interactive mode is forced by the
|
||||
**-i** flag or **--interactive** option.
|
||||
**-i** flag or **-\-interactive** option.
|
||||
|
||||
These exit statuses allow bc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the **-i** flag or
|
||||
**--interactive** option.
|
||||
**-\-interactive** option.
|
||||
|
||||
# INTERACTIVE MODE
|
||||
|
||||
Per the [standard][1], bc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both **stdin** and **stdout**
|
||||
are hooked to a terminal, but the **-i** flag and **--interactive** option can
|
||||
are hooked to a terminal, but the **-i** flag and **-\-interactive** option can
|
||||
turn it on in other cases.
|
||||
|
||||
In interactive mode, bc(1) attempts to recover from errors (see the **RESET**
|
||||
|
||||
@ -25,19 +25,18 @@
|
||||
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
.\" POSSIBILITY OF SUCH DAMAGE.
|
||||
.\"
|
||||
.TH "BC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.TH "BC" "1" "March 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.SH NAME
|
||||
.PP
|
||||
bc - arbitrary-precision decimal arithmetic language and calculator
|
||||
.SH SYNOPSIS
|
||||
.PP
|
||||
\f[B]bc\f[R] [\f[B]-ghilPqsvVw\f[R]] [\f[B]\[en]global-stacks\f[R]]
|
||||
[\f[B]\[en]help\f[R]] [\f[B]\[en]interactive\f[R]]
|
||||
[\f[B]\[en]mathlib\f[R]] [\f[B]\[en]no-prompt\f[R]]
|
||||
[\f[B]\[en]quiet\f[R]] [\f[B]\[en]standard\f[R]] [\f[B]\[en]warn\f[R]]
|
||||
[\f[B]\[en]version\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]\[en]expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]-file\f[R]=\f[I]file\f[R]\&...]
|
||||
\f[B]bc\f[R] [\f[B]-ghilPqsvVw\f[R]] [\f[B]--global-stacks\f[R]]
|
||||
[\f[B]--help\f[R]] [\f[B]--interactive\f[R]] [\f[B]--mathlib\f[R]]
|
||||
[\f[B]--no-prompt\f[R]] [\f[B]--quiet\f[R]] [\f[B]--standard\f[R]]
|
||||
[\f[B]--warn\f[R]] [\f[B]--version\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]--expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]--file\f[R]=\f[I]file\f[R]\&...]
|
||||
[\f[I]file\f[R]\&...]
|
||||
.SH DESCRIPTION
|
||||
.PP
|
||||
@ -55,7 +54,7 @@ the command line and executes them before reading from \f[B]stdin\f[R].
|
||||
.PP
|
||||
The following are the options that bc(1) accepts.
|
||||
.TP
|
||||
\f[B]-g\f[R], \f[B]\[en]global-stacks\f[R]
|
||||
\f[B]-g\f[R], \f[B]--global-stacks\f[R]
|
||||
Turns the globals \f[B]ibase\f[R], \f[B]obase\f[R], \f[B]scale\f[R], and
|
||||
\f[B]seed\f[R] into stacks.
|
||||
.RS
|
||||
@ -147,10 +146,10 @@ is ignored.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-h\f[R], \f[B]\[en]help\f[R]
|
||||
\f[B]-h\f[R], \f[B]--help\f[R]
|
||||
Prints a usage message and quits.
|
||||
.TP
|
||||
\f[B]-i\f[R], \f[B]\[en]interactive\f[R]
|
||||
\f[B]-i\f[R], \f[B]--interactive\f[R]
|
||||
Forces interactive mode.
|
||||
(See the \f[B]INTERACTIVE MODE\f[R] section.)
|
||||
.RS
|
||||
@ -158,7 +157,7 @@ Forces interactive mode.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-l\f[R], \f[B]\[en]mathlib\f[R]
|
||||
\f[B]-l\f[R], \f[B]--mathlib\f[R]
|
||||
Sets \f[B]scale\f[R] (see the \f[B]SYNTAX\f[R] section) to \f[B]20\f[R]
|
||||
and loads the included math library and the extended math library before
|
||||
running any code, including any expressions or files specified on the
|
||||
@ -168,7 +167,7 @@ command line.
|
||||
To learn what is in the libraries, see the \f[B]LIBRARY\f[R] section.
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-P\f[R], \f[B]\[en]no-prompt\f[R]
|
||||
\f[B]-P\f[R], \f[B]--no-prompt\f[R]
|
||||
Disables the prompt in TTY mode.
|
||||
(The prompt is only enabled in TTY mode.
|
||||
See the \f[B]TTY MODE\f[R] section) This is mostly for those users that
|
||||
@ -180,18 +179,18 @@ Most of those users would want to put this option in
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-q\f[R], \f[B]\[en]quiet\f[R]
|
||||
\f[B]-q\f[R], \f[B]--quiet\f[R]
|
||||
This option is for compatibility with the GNU
|
||||
bc(1) (https://www.gnu.org/software/bc/); it is a no-op.
|
||||
Without this option, GNU bc(1) prints a copyright header.
|
||||
This bc(1) only prints the copyright header if one or more of the
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], or \f[B]\[en]version\f[R] options are given.
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], or \f[B]--version\f[R] options are given.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-s\f[R], \f[B]\[en]standard\f[R]
|
||||
\f[B]-s\f[R], \f[B]--standard\f[R]
|
||||
Process exactly the language defined by the
|
||||
standard (https://pubs.opengroup.org/onlinepubs/9699919799/utilities/bc.html)
|
||||
and error if any extensions are used.
|
||||
@ -200,15 +199,15 @@ and error if any extensions are used.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]\[en]version\f[R]
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]--version\f[R]
|
||||
Print the version information (copyright header) and exit.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-w\f[R], \f[B]\[en]warn\f[R]
|
||||
Like \f[B]-s\f[R] and \f[B]\[en]standard\f[R], except that warnings (and
|
||||
\f[B]-w\f[R], \f[B]--warn\f[R]
|
||||
Like \f[B]-s\f[R] and \f[B]--standard\f[R], except that warnings (and
|
||||
not errors) are printed for non-standard extensions and execution
|
||||
continues normally.
|
||||
.RS
|
||||
@ -216,7 +215,7 @@ continues normally.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]\[en]expression\f[R]=\f[I]expr\f[R]
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]--expression\f[R]=\f[I]expr\f[R]
|
||||
Evaluates \f[I]expr\f[R].
|
||||
If multiple expressions are given, they are evaluated in order.
|
||||
If files are given as well (see below), the expressions and files are
|
||||
@ -229,17 +228,17 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, bc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R], whether on the command-line or in
|
||||
\f[B]BC_ENV_ARGS\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]\[en]file\f[R]=\f[I]file\f[R]
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]--file\f[R]=\f[I]file\f[R]
|
||||
Reads in \f[I]file\f[R] and evaluates it, line by line, as though it
|
||||
were read through \f[B]stdin\f[R].
|
||||
If expressions are also given (see above), the expressions are evaluated
|
||||
@ -250,9 +249,9 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, bc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
@ -317,8 +316,8 @@ constant numbers.
|
||||
It is the \[lq]input\[rq] base, or the number base used for interpreting
|
||||
input numbers.
|
||||
\f[B]ibase\f[R] is initially \f[B]10\f[R].
|
||||
If the \f[B]-s\f[R] (\f[B]\[en]standard\f[R]) and \f[B]-w\f[R]
|
||||
(\f[B]\[en]warn\f[R]) flags were not given on the command line, the max
|
||||
If the \f[B]-s\f[R] (\f[B]--standard\f[R]) and \f[B]-w\f[R]
|
||||
(\f[B]--warn\f[R]) flags were not given on the command line, the max
|
||||
allowable value for \f[B]ibase\f[R] is \f[B]36\f[R].
|
||||
Otherwise, it is \f[B]16\f[R].
|
||||
The min allowable value for \f[B]ibase\f[R] is \f[B]2\f[R].
|
||||
@ -577,7 +576,7 @@ The following arithmetic and logical operators can be used.
|
||||
They are listed in order of decreasing precedence.
|
||||
Operators in the same group have the same precedence.
|
||||
.TP
|
||||
\f[B]++\f[R] \f[B]\[en]\f[R]
|
||||
\f[B]++\f[R] \f[B]--\f[R]
|
||||
Type: Prefix and Postfix
|
||||
.RS
|
||||
.PP
|
||||
@ -687,7 +686,7 @@ Description: \f[B]boolean or\f[R]
|
||||
.PP
|
||||
The operators will be described in more detail below.
|
||||
.TP
|
||||
\f[B]++\f[R] \f[B]\[en]\f[R]
|
||||
\f[B]++\f[R] \f[B]--\f[R]
|
||||
The prefix and postfix \f[B]increment\f[R] and \f[B]decrement\f[R]
|
||||
operators behave exactly like they would in C.
|
||||
They require a named expression (see the \f[I]Named Expressions\f[R]
|
||||
@ -1133,7 +1132,7 @@ This is a \f[B]non-portable extension\f[R].
|
||||
.PP
|
||||
All of the functions below, including the functions in the extended math
|
||||
library (see the \f[I]Extended Library\f[R] subsection below), are
|
||||
available when the \f[B]-l\f[R] or \f[B]\[en]mathlib\f[R] command-line
|
||||
available when the \f[B]-l\f[R] or \f[B]--mathlib\f[R] command-line
|
||||
flags are given, except that the extended math library is not available
|
||||
when the \f[B]-s\f[R] option, the \f[B]-w\f[R] option, or equivalents
|
||||
are given.
|
||||
@ -1194,7 +1193,7 @@ Functions\f[R] subsection below).
|
||||
.SS Extended Library
|
||||
.PP
|
||||
The extended library is \f[I]not\f[R] loaded when the
|
||||
\f[B]-s\f[R]/\f[B]\[en]standard\f[R] or \f[B]-w\f[R]/\f[B]\[en]warn\f[R]
|
||||
\f[B]-s\f[R]/\f[B]--standard\f[R] or \f[B]-w\f[R]/\f[B]--warn\f[R]
|
||||
options are given since they are not part of the library defined by the
|
||||
standard (https://pubs.opengroup.org/onlinepubs/9699919799/utilities/bc.html).
|
||||
.PP
|
||||
@ -1952,11 +1951,11 @@ interactive mode (see the \f[B]INTERACTIVE MODE\f[R] section), since
|
||||
bc(1) resets its state (see the \f[B]RESET\f[R] section) and accepts
|
||||
more input when one of those errors occurs in interactive mode.
|
||||
This is also the case when interactive mode is forced by the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.PP
|
||||
These exit statuses allow bc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.SH INTERACTIVE MODE
|
||||
.PP
|
||||
Per the
|
||||
@ -1964,7 +1963,7 @@ standard (https://pubs.opengroup.org/onlinepubs/9699919799/utilities/bc.html),
|
||||
bc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both \f[B]stdin\f[R]
|
||||
and \f[B]stdout\f[R] are hooked to a terminal, but the \f[B]-i\f[R] flag
|
||||
and \f[B]\[en]interactive\f[R] option can turn it on in other cases.
|
||||
and \f[B]--interactive\f[R] option can turn it on in other cases.
|
||||
.PP
|
||||
In interactive mode, bc(1) attempts to recover from errors (see the
|
||||
\f[B]RESET\f[R] section), and in normal execution, flushes
|
||||
|
||||
@ -34,8 +34,7 @@ bc - arbitrary-precision decimal arithmetic language and calculator
|
||||
|
||||
# SYNOPSIS
|
||||
|
||||
**bc** [**-ghilPqsvVw**] [**--global-stacks**] [**--help**] [**--interactive**] [**--mathlib**] [**--no-prompt**] [**--quiet**] [**--standard**] [**--warn**] [**--version**] [**-e** *expr*] [**--expression**=*expr*...] [**-f** *file*...] [**-file**=*file*...]
|
||||
[*file*...]
|
||||
**bc** [**-ghilPqsvVw**] [**-\-global-stacks**] [**-\-help**] [**-\-interactive**] [**-\-mathlib**] [**-\-no-prompt**] [**-\-quiet**] [**-\-standard**] [**-\-warn**] [**-\-version**] [**-e** *expr*] [**-\-expression**=*expr*...] [**-f** *file*...] [**-\-file**=*file*...] [*file*...]
|
||||
|
||||
# DESCRIPTION
|
||||
|
||||
@ -51,7 +50,7 @@ command line and executes them before reading from **stdin**.
|
||||
|
||||
The following are the options that bc(1) accepts.
|
||||
|
||||
**-g**, **--global-stacks**
|
||||
**-g**, **-\-global-stacks**
|
||||
|
||||
: Turns the globals **ibase**, **obase**, **scale**, and **seed** into stacks.
|
||||
|
||||
@ -119,17 +118,17 @@ The following are the options that bc(1) accepts.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-h**, **--help**
|
||||
**-h**, **-\-help**
|
||||
|
||||
: Prints a usage message and quits.
|
||||
|
||||
**-i**, **--interactive**
|
||||
**-i**, **-\-interactive**
|
||||
|
||||
: Forces interactive mode. (See the **INTERACTIVE MODE** section.)
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-l**, **--mathlib**
|
||||
**-l**, **-\-mathlib**
|
||||
|
||||
: Sets **scale** (see the **SYNTAX** section) to **20** and loads the included
|
||||
math library and the extended math library before running any code,
|
||||
@ -137,7 +136,7 @@ The following are the options that bc(1) accepts.
|
||||
|
||||
To learn what is in the libraries, see the **LIBRARY** section.
|
||||
|
||||
**-P**, **--no-prompt**
|
||||
**-P**, **-\-no-prompt**
|
||||
|
||||
: Disables the prompt in TTY mode. (The prompt is only enabled in TTY mode.
|
||||
See the **TTY MODE** section) This is mostly for those users that do not
|
||||
@ -147,36 +146,36 @@ The following are the options that bc(1) accepts.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-q**, **--quiet**
|
||||
**-q**, **-\-quiet**
|
||||
|
||||
: This option is for compatibility with the [GNU bc(1)][2]; it is a no-op.
|
||||
Without this option, GNU bc(1) prints a copyright header. This bc(1) only
|
||||
prints the copyright header if one or more of the **-v**, **-V**, or
|
||||
**--version** options are given.
|
||||
**-\-version** options are given.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-s**, **--standard**
|
||||
**-s**, **-\-standard**
|
||||
|
||||
: Process exactly the language defined by the [standard][1] and error if any
|
||||
extensions are used.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-v**, **-V**, **--version**
|
||||
**-v**, **-V**, **-\-version**
|
||||
|
||||
: Print the version information (copyright header) and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-w**, **--warn**
|
||||
**-w**, **-\-warn**
|
||||
|
||||
: Like **-s** and **--standard**, except that warnings (and not errors) are
|
||||
: Like **-s** and **-\-standard**, except that warnings (and not errors) are
|
||||
printed for non-standard extensions and execution continues normally.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-e** *expr*, **--expression**=*expr*
|
||||
**-e** *expr*, **-\-expression**=*expr*
|
||||
|
||||
: Evaluates *expr*. If multiple expressions are given, they are evaluated in
|
||||
order. If files are given as well (see below), the expressions and files are
|
||||
@ -186,14 +185,14 @@ The following are the options that bc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**, whether on the
|
||||
as an argument at least once to **-f** or **-\-file**, whether on the
|
||||
command-line or in **BC_ENV_ARGS**. However, if any other **-e**,
|
||||
**--expression**, **-f**, or **--file** arguments are given after **-f-** or
|
||||
equivalent is given, bc(1) will give a fatal error and exit.
|
||||
**-\-expression**, **-f**, or **-\-file** arguments are given after **-f-**
|
||||
or equivalent is given, bc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-f** *file*, **--file**=*file*
|
||||
**-f** *file*, **-\-file**=*file*
|
||||
|
||||
: Reads in *file* and evaluates it, line by line, as though it were read
|
||||
through **stdin**. If expressions are also given (see above), the
|
||||
@ -202,8 +201,8 @@ The following are the options that bc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**. However, if any other
|
||||
**-e**, **--expression**, **-f**, or **--file** arguments are given after
|
||||
as an argument at least once to **-f** or **-\-file**. However, if any other
|
||||
**-e**, **-\-expression**, **-f**, or **-\-file** arguments are given after
|
||||
**-f-** or equivalent is given, bc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
@ -258,8 +257,8 @@ Identifiers with more than one character (letter) are a
|
||||
|
||||
**ibase** is a global variable determining how to interpret constant numbers. It
|
||||
is the "input" base, or the number base used for interpreting input numbers.
|
||||
**ibase** is initially **10**. If the **-s** (**--standard**) and **-w**
|
||||
(**--warn**) flags were not given on the command line, the max allowable value
|
||||
**ibase** is initially **10**. If the **-s** (**-\-standard**) and **-w**
|
||||
(**-\-warn**) flags were not given on the command line, the max allowable value
|
||||
for **ibase** is **36**. Otherwise, it is **16**. The min allowable value for
|
||||
**ibase** is **2**. The max allowable value for **ibase** can be queried in
|
||||
bc(1) programs with the **maxibase()** built-in function.
|
||||
@ -449,7 +448,7 @@ The following arithmetic and logical operators can be used. They are listed in
|
||||
order of decreasing precedence. Operators in the same group have the same
|
||||
precedence.
|
||||
|
||||
**++** **--**
|
||||
**++** **-\-**
|
||||
|
||||
: Type: Prefix and Postfix
|
||||
|
||||
@ -547,7 +546,7 @@ precedence.
|
||||
|
||||
The operators will be described in more detail below.
|
||||
|
||||
**++** **--**
|
||||
**++** **-\-**
|
||||
|
||||
: The prefix and postfix **increment** and **decrement** operators behave
|
||||
exactly like they would in C. They require a named expression (see the
|
||||
@ -878,7 +877,7 @@ This is a **non-portable extension**.
|
||||
|
||||
All of the functions below, including the functions in the extended math
|
||||
library (see the *Extended Library* subsection below), are available when the
|
||||
**-l** or **--mathlib** command-line flags are given, except that the extended
|
||||
**-l** or **-\-mathlib** command-line flags are given, except that the extended
|
||||
math library is not available when the **-s** option, the **-w** option, or
|
||||
equivalents are given.
|
||||
|
||||
@ -930,8 +929,8 @@ The [standard][1] defines the following functions for the math library:
|
||||
|
||||
## Extended Library
|
||||
|
||||
The extended library is *not* loaded when the **-s**/**--standard** or
|
||||
**-w**/**--warn** options are given since they are not part of the library
|
||||
The extended library is *not* loaded when the **-s**/**-\-standard** or
|
||||
**-w**/**-\-warn** options are given since they are not part of the library
|
||||
defined by the [standard][1].
|
||||
|
||||
The extended library is a **non-portable extension**.
|
||||
@ -1599,17 +1598,17 @@ The other statuses will only be returned when bc(1) is not in interactive mode
|
||||
(see the **INTERACTIVE MODE** section), since bc(1) resets its state (see the
|
||||
**RESET** section) and accepts more input when one of those errors occurs in
|
||||
interactive mode. This is also the case when interactive mode is forced by the
|
||||
**-i** flag or **--interactive** option.
|
||||
**-i** flag or **-\-interactive** option.
|
||||
|
||||
These exit statuses allow bc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the **-i** flag or
|
||||
**--interactive** option.
|
||||
**-\-interactive** option.
|
||||
|
||||
# INTERACTIVE MODE
|
||||
|
||||
Per the [standard][1], bc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both **stdin** and **stdout**
|
||||
are hooked to a terminal, but the **-i** flag and **--interactive** option can
|
||||
are hooked to a terminal, but the **-i** flag and **-\-interactive** option can
|
||||
turn it on in other cases.
|
||||
|
||||
In interactive mode, bc(1) attempts to recover from errors (see the **RESET**
|
||||
|
||||
@ -25,19 +25,18 @@
|
||||
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
.\" POSSIBILITY OF SUCH DAMAGE.
|
||||
.\"
|
||||
.TH "BC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.TH "BC" "1" "March 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.SH NAME
|
||||
.PP
|
||||
bc - arbitrary-precision decimal arithmetic language and calculator
|
||||
.SH SYNOPSIS
|
||||
.PP
|
||||
\f[B]bc\f[R] [\f[B]-ghilPqsvVw\f[R]] [\f[B]\[en]global-stacks\f[R]]
|
||||
[\f[B]\[en]help\f[R]] [\f[B]\[en]interactive\f[R]]
|
||||
[\f[B]\[en]mathlib\f[R]] [\f[B]\[en]no-prompt\f[R]]
|
||||
[\f[B]\[en]quiet\f[R]] [\f[B]\[en]standard\f[R]] [\f[B]\[en]warn\f[R]]
|
||||
[\f[B]\[en]version\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]\[en]expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]-file\f[R]=\f[I]file\f[R]\&...]
|
||||
\f[B]bc\f[R] [\f[B]-ghilPqsvVw\f[R]] [\f[B]--global-stacks\f[R]]
|
||||
[\f[B]--help\f[R]] [\f[B]--interactive\f[R]] [\f[B]--mathlib\f[R]]
|
||||
[\f[B]--no-prompt\f[R]] [\f[B]--quiet\f[R]] [\f[B]--standard\f[R]]
|
||||
[\f[B]--warn\f[R]] [\f[B]--version\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]--expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]--file\f[R]=\f[I]file\f[R]\&...]
|
||||
[\f[I]file\f[R]\&...]
|
||||
.SH DESCRIPTION
|
||||
.PP
|
||||
@ -55,7 +54,7 @@ the command line and executes them before reading from \f[B]stdin\f[R].
|
||||
.PP
|
||||
The following are the options that bc(1) accepts.
|
||||
.TP
|
||||
\f[B]-g\f[R], \f[B]\[en]global-stacks\f[R]
|
||||
\f[B]-g\f[R], \f[B]--global-stacks\f[R]
|
||||
Turns the globals \f[B]ibase\f[R], \f[B]obase\f[R], \f[B]scale\f[R], and
|
||||
\f[B]seed\f[R] into stacks.
|
||||
.RS
|
||||
@ -147,10 +146,10 @@ is ignored.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-h\f[R], \f[B]\[en]help\f[R]
|
||||
\f[B]-h\f[R], \f[B]--help\f[R]
|
||||
Prints a usage message and quits.
|
||||
.TP
|
||||
\f[B]-i\f[R], \f[B]\[en]interactive\f[R]
|
||||
\f[B]-i\f[R], \f[B]--interactive\f[R]
|
||||
Forces interactive mode.
|
||||
(See the \f[B]INTERACTIVE MODE\f[R] section.)
|
||||
.RS
|
||||
@ -158,7 +157,7 @@ Forces interactive mode.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-l\f[R], \f[B]\[en]mathlib\f[R]
|
||||
\f[B]-l\f[R], \f[B]--mathlib\f[R]
|
||||
Sets \f[B]scale\f[R] (see the \f[B]SYNTAX\f[R] section) to \f[B]20\f[R]
|
||||
and loads the included math library and the extended math library before
|
||||
running any code, including any expressions or files specified on the
|
||||
@ -168,25 +167,25 @@ command line.
|
||||
To learn what is in the libraries, see the \f[B]LIBRARY\f[R] section.
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-P\f[R], \f[B]\[en]no-prompt\f[R]
|
||||
\f[B]-P\f[R], \f[B]--no-prompt\f[R]
|
||||
This option is a no-op.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-q\f[R], \f[B]\[en]quiet\f[R]
|
||||
\f[B]-q\f[R], \f[B]--quiet\f[R]
|
||||
This option is for compatibility with the GNU
|
||||
bc(1) (https://www.gnu.org/software/bc/); it is a no-op.
|
||||
Without this option, GNU bc(1) prints a copyright header.
|
||||
This bc(1) only prints the copyright header if one or more of the
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], or \f[B]\[en]version\f[R] options are given.
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], or \f[B]--version\f[R] options are given.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-s\f[R], \f[B]\[en]standard\f[R]
|
||||
\f[B]-s\f[R], \f[B]--standard\f[R]
|
||||
Process exactly the language defined by the
|
||||
standard (https://pubs.opengroup.org/onlinepubs/9699919799/utilities/bc.html)
|
||||
and error if any extensions are used.
|
||||
@ -195,15 +194,15 @@ and error if any extensions are used.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]\[en]version\f[R]
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]--version\f[R]
|
||||
Print the version information (copyright header) and exit.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-w\f[R], \f[B]\[en]warn\f[R]
|
||||
Like \f[B]-s\f[R] and \f[B]\[en]standard\f[R], except that warnings (and
|
||||
\f[B]-w\f[R], \f[B]--warn\f[R]
|
||||
Like \f[B]-s\f[R] and \f[B]--standard\f[R], except that warnings (and
|
||||
not errors) are printed for non-standard extensions and execution
|
||||
continues normally.
|
||||
.RS
|
||||
@ -211,7 +210,7 @@ continues normally.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]\[en]expression\f[R]=\f[I]expr\f[R]
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]--expression\f[R]=\f[I]expr\f[R]
|
||||
Evaluates \f[I]expr\f[R].
|
||||
If multiple expressions are given, they are evaluated in order.
|
||||
If files are given as well (see below), the expressions and files are
|
||||
@ -224,17 +223,17 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, bc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R], whether on the command-line or in
|
||||
\f[B]BC_ENV_ARGS\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]\[en]file\f[R]=\f[I]file\f[R]
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]--file\f[R]=\f[I]file\f[R]
|
||||
Reads in \f[I]file\f[R] and evaluates it, line by line, as though it
|
||||
were read through \f[B]stdin\f[R].
|
||||
If expressions are also given (see above), the expressions are evaluated
|
||||
@ -245,9 +244,9 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, bc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
@ -312,8 +311,8 @@ constant numbers.
|
||||
It is the \[lq]input\[rq] base, or the number base used for interpreting
|
||||
input numbers.
|
||||
\f[B]ibase\f[R] is initially \f[B]10\f[R].
|
||||
If the \f[B]-s\f[R] (\f[B]\[en]standard\f[R]) and \f[B]-w\f[R]
|
||||
(\f[B]\[en]warn\f[R]) flags were not given on the command line, the max
|
||||
If the \f[B]-s\f[R] (\f[B]--standard\f[R]) and \f[B]-w\f[R]
|
||||
(\f[B]--warn\f[R]) flags were not given on the command line, the max
|
||||
allowable value for \f[B]ibase\f[R] is \f[B]36\f[R].
|
||||
Otherwise, it is \f[B]16\f[R].
|
||||
The min allowable value for \f[B]ibase\f[R] is \f[B]2\f[R].
|
||||
@ -572,7 +571,7 @@ The following arithmetic and logical operators can be used.
|
||||
They are listed in order of decreasing precedence.
|
||||
Operators in the same group have the same precedence.
|
||||
.TP
|
||||
\f[B]++\f[R] \f[B]\[en]\f[R]
|
||||
\f[B]++\f[R] \f[B]--\f[R]
|
||||
Type: Prefix and Postfix
|
||||
.RS
|
||||
.PP
|
||||
@ -682,7 +681,7 @@ Description: \f[B]boolean or\f[R]
|
||||
.PP
|
||||
The operators will be described in more detail below.
|
||||
.TP
|
||||
\f[B]++\f[R] \f[B]\[en]\f[R]
|
||||
\f[B]++\f[R] \f[B]--\f[R]
|
||||
The prefix and postfix \f[B]increment\f[R] and \f[B]decrement\f[R]
|
||||
operators behave exactly like they would in C.
|
||||
They require a named expression (see the \f[I]Named Expressions\f[R]
|
||||
@ -1128,7 +1127,7 @@ This is a \f[B]non-portable extension\f[R].
|
||||
.PP
|
||||
All of the functions below, including the functions in the extended math
|
||||
library (see the \f[I]Extended Library\f[R] subsection below), are
|
||||
available when the \f[B]-l\f[R] or \f[B]\[en]mathlib\f[R] command-line
|
||||
available when the \f[B]-l\f[R] or \f[B]--mathlib\f[R] command-line
|
||||
flags are given, except that the extended math library is not available
|
||||
when the \f[B]-s\f[R] option, the \f[B]-w\f[R] option, or equivalents
|
||||
are given.
|
||||
@ -1189,7 +1188,7 @@ Functions\f[R] subsection below).
|
||||
.SS Extended Library
|
||||
.PP
|
||||
The extended library is \f[I]not\f[R] loaded when the
|
||||
\f[B]-s\f[R]/\f[B]\[en]standard\f[R] or \f[B]-w\f[R]/\f[B]\[en]warn\f[R]
|
||||
\f[B]-s\f[R]/\f[B]--standard\f[R] or \f[B]-w\f[R]/\f[B]--warn\f[R]
|
||||
options are given since they are not part of the library defined by the
|
||||
standard (https://pubs.opengroup.org/onlinepubs/9699919799/utilities/bc.html).
|
||||
.PP
|
||||
@ -1947,11 +1946,11 @@ interactive mode (see the \f[B]INTERACTIVE MODE\f[R] section), since
|
||||
bc(1) resets its state (see the \f[B]RESET\f[R] section) and accepts
|
||||
more input when one of those errors occurs in interactive mode.
|
||||
This is also the case when interactive mode is forced by the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.PP
|
||||
These exit statuses allow bc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.SH INTERACTIVE MODE
|
||||
.PP
|
||||
Per the
|
||||
@ -1959,7 +1958,7 @@ standard (https://pubs.opengroup.org/onlinepubs/9699919799/utilities/bc.html),
|
||||
bc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both \f[B]stdin\f[R]
|
||||
and \f[B]stdout\f[R] are hooked to a terminal, but the \f[B]-i\f[R] flag
|
||||
and \f[B]\[en]interactive\f[R] option can turn it on in other cases.
|
||||
and \f[B]--interactive\f[R] option can turn it on in other cases.
|
||||
.PP
|
||||
In interactive mode, bc(1) attempts to recover from errors (see the
|
||||
\f[B]RESET\f[R] section), and in normal execution, flushes
|
||||
|
||||
@ -34,8 +34,7 @@ bc - arbitrary-precision decimal arithmetic language and calculator
|
||||
|
||||
# SYNOPSIS
|
||||
|
||||
**bc** [**-ghilPqsvVw**] [**--global-stacks**] [**--help**] [**--interactive**] [**--mathlib**] [**--no-prompt**] [**--quiet**] [**--standard**] [**--warn**] [**--version**] [**-e** *expr*] [**--expression**=*expr*...] [**-f** *file*...] [**-file**=*file*...]
|
||||
[*file*...]
|
||||
**bc** [**-ghilPqsvVw**] [**-\-global-stacks**] [**-\-help**] [**-\-interactive**] [**-\-mathlib**] [**-\-no-prompt**] [**-\-quiet**] [**-\-standard**] [**-\-warn**] [**-\-version**] [**-e** *expr*] [**-\-expression**=*expr*...] [**-f** *file*...] [**-\-file**=*file*...] [*file*...]
|
||||
|
||||
# DESCRIPTION
|
||||
|
||||
@ -51,7 +50,7 @@ command line and executes them before reading from **stdin**.
|
||||
|
||||
The following are the options that bc(1) accepts.
|
||||
|
||||
**-g**, **--global-stacks**
|
||||
**-g**, **-\-global-stacks**
|
||||
|
||||
: Turns the globals **ibase**, **obase**, **scale**, and **seed** into stacks.
|
||||
|
||||
@ -119,17 +118,17 @@ The following are the options that bc(1) accepts.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-h**, **--help**
|
||||
**-h**, **-\-help**
|
||||
|
||||
: Prints a usage message and quits.
|
||||
|
||||
**-i**, **--interactive**
|
||||
**-i**, **-\-interactive**
|
||||
|
||||
: Forces interactive mode. (See the **INTERACTIVE MODE** section.)
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-l**, **--mathlib**
|
||||
**-l**, **-\-mathlib**
|
||||
|
||||
: Sets **scale** (see the **SYNTAX** section) to **20** and loads the included
|
||||
math library and the extended math library before running any code,
|
||||
@ -137,42 +136,42 @@ The following are the options that bc(1) accepts.
|
||||
|
||||
To learn what is in the libraries, see the **LIBRARY** section.
|
||||
|
||||
**-P**, **--no-prompt**
|
||||
**-P**, **-\-no-prompt**
|
||||
|
||||
: This option is a no-op.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-q**, **--quiet**
|
||||
**-q**, **-\-quiet**
|
||||
|
||||
: This option is for compatibility with the [GNU bc(1)][2]; it is a no-op.
|
||||
Without this option, GNU bc(1) prints a copyright header. This bc(1) only
|
||||
prints the copyright header if one or more of the **-v**, **-V**, or
|
||||
**--version** options are given.
|
||||
**-\-version** options are given.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-s**, **--standard**
|
||||
**-s**, **-\-standard**
|
||||
|
||||
: Process exactly the language defined by the [standard][1] and error if any
|
||||
extensions are used.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-v**, **-V**, **--version**
|
||||
**-v**, **-V**, **-\-version**
|
||||
|
||||
: Print the version information (copyright header) and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-w**, **--warn**
|
||||
**-w**, **-\-warn**
|
||||
|
||||
: Like **-s** and **--standard**, except that warnings (and not errors) are
|
||||
: Like **-s** and **-\-standard**, except that warnings (and not errors) are
|
||||
printed for non-standard extensions and execution continues normally.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-e** *expr*, **--expression**=*expr*
|
||||
**-e** *expr*, **-\-expression**=*expr*
|
||||
|
||||
: Evaluates *expr*. If multiple expressions are given, they are evaluated in
|
||||
order. If files are given as well (see below), the expressions and files are
|
||||
@ -182,14 +181,14 @@ The following are the options that bc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**, whether on the
|
||||
as an argument at least once to **-f** or **-\-file**, whether on the
|
||||
command-line or in **BC_ENV_ARGS**. However, if any other **-e**,
|
||||
**--expression**, **-f**, or **--file** arguments are given after **-f-** or
|
||||
equivalent is given, bc(1) will give a fatal error and exit.
|
||||
**-\-expression**, **-f**, or **-\-file** arguments are given after **-f-**
|
||||
or equivalent is given, bc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-f** *file*, **--file**=*file*
|
||||
**-f** *file*, **-\-file**=*file*
|
||||
|
||||
: Reads in *file* and evaluates it, line by line, as though it were read
|
||||
through **stdin**. If expressions are also given (see above), the
|
||||
@ -198,8 +197,8 @@ The following are the options that bc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**. However, if any other
|
||||
**-e**, **--expression**, **-f**, or **--file** arguments are given after
|
||||
as an argument at least once to **-f** or **-\-file**. However, if any other
|
||||
**-e**, **-\-expression**, **-f**, or **-\-file** arguments are given after
|
||||
**-f-** or equivalent is given, bc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
@ -254,8 +253,8 @@ Identifiers with more than one character (letter) are a
|
||||
|
||||
**ibase** is a global variable determining how to interpret constant numbers. It
|
||||
is the "input" base, or the number base used for interpreting input numbers.
|
||||
**ibase** is initially **10**. If the **-s** (**--standard**) and **-w**
|
||||
(**--warn**) flags were not given on the command line, the max allowable value
|
||||
**ibase** is initially **10**. If the **-s** (**-\-standard**) and **-w**
|
||||
(**-\-warn**) flags were not given on the command line, the max allowable value
|
||||
for **ibase** is **36**. Otherwise, it is **16**. The min allowable value for
|
||||
**ibase** is **2**. The max allowable value for **ibase** can be queried in
|
||||
bc(1) programs with the **maxibase()** built-in function.
|
||||
@ -445,7 +444,7 @@ The following arithmetic and logical operators can be used. They are listed in
|
||||
order of decreasing precedence. Operators in the same group have the same
|
||||
precedence.
|
||||
|
||||
**++** **--**
|
||||
**++** **-\-**
|
||||
|
||||
: Type: Prefix and Postfix
|
||||
|
||||
@ -543,7 +542,7 @@ precedence.
|
||||
|
||||
The operators will be described in more detail below.
|
||||
|
||||
**++** **--**
|
||||
**++** **-\-**
|
||||
|
||||
: The prefix and postfix **increment** and **decrement** operators behave
|
||||
exactly like they would in C. They require a named expression (see the
|
||||
@ -874,7 +873,7 @@ This is a **non-portable extension**.
|
||||
|
||||
All of the functions below, including the functions in the extended math
|
||||
library (see the *Extended Library* subsection below), are available when the
|
||||
**-l** or **--mathlib** command-line flags are given, except that the extended
|
||||
**-l** or **-\-mathlib** command-line flags are given, except that the extended
|
||||
math library is not available when the **-s** option, the **-w** option, or
|
||||
equivalents are given.
|
||||
|
||||
@ -926,8 +925,8 @@ The [standard][1] defines the following functions for the math library:
|
||||
|
||||
## Extended Library
|
||||
|
||||
The extended library is *not* loaded when the **-s**/**--standard** or
|
||||
**-w**/**--warn** options are given since they are not part of the library
|
||||
The extended library is *not* loaded when the **-s**/**-\-standard** or
|
||||
**-w**/**-\-warn** options are given since they are not part of the library
|
||||
defined by the [standard][1].
|
||||
|
||||
The extended library is a **non-portable extension**.
|
||||
@ -1595,17 +1594,17 @@ The other statuses will only be returned when bc(1) is not in interactive mode
|
||||
(see the **INTERACTIVE MODE** section), since bc(1) resets its state (see the
|
||||
**RESET** section) and accepts more input when one of those errors occurs in
|
||||
interactive mode. This is also the case when interactive mode is forced by the
|
||||
**-i** flag or **--interactive** option.
|
||||
**-i** flag or **-\-interactive** option.
|
||||
|
||||
These exit statuses allow bc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the **-i** flag or
|
||||
**--interactive** option.
|
||||
**-\-interactive** option.
|
||||
|
||||
# INTERACTIVE MODE
|
||||
|
||||
Per the [standard][1], bc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both **stdin** and **stdout**
|
||||
are hooked to a terminal, but the **-i** flag and **--interactive** option can
|
||||
are hooked to a terminal, but the **-i** flag and **-\-interactive** option can
|
||||
turn it on in other cases.
|
||||
|
||||
In interactive mode, bc(1) attempts to recover from errors (see the **RESET**
|
||||
|
||||
@ -25,19 +25,18 @@
|
||||
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
.\" POSSIBILITY OF SUCH DAMAGE.
|
||||
.\"
|
||||
.TH "BC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.TH "BC" "1" "March 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.SH NAME
|
||||
.PP
|
||||
bc - arbitrary-precision decimal arithmetic language and calculator
|
||||
.SH SYNOPSIS
|
||||
.PP
|
||||
\f[B]bc\f[R] [\f[B]-ghilPqsvVw\f[R]] [\f[B]\[en]global-stacks\f[R]]
|
||||
[\f[B]\[en]help\f[R]] [\f[B]\[en]interactive\f[R]]
|
||||
[\f[B]\[en]mathlib\f[R]] [\f[B]\[en]no-prompt\f[R]]
|
||||
[\f[B]\[en]quiet\f[R]] [\f[B]\[en]standard\f[R]] [\f[B]\[en]warn\f[R]]
|
||||
[\f[B]\[en]version\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]\[en]expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]-file\f[R]=\f[I]file\f[R]\&...]
|
||||
\f[B]bc\f[R] [\f[B]-ghilPqsvVw\f[R]] [\f[B]--global-stacks\f[R]]
|
||||
[\f[B]--help\f[R]] [\f[B]--interactive\f[R]] [\f[B]--mathlib\f[R]]
|
||||
[\f[B]--no-prompt\f[R]] [\f[B]--quiet\f[R]] [\f[B]--standard\f[R]]
|
||||
[\f[B]--warn\f[R]] [\f[B]--version\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]--expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]--file\f[R]=\f[I]file\f[R]\&...]
|
||||
[\f[I]file\f[R]\&...]
|
||||
.SH DESCRIPTION
|
||||
.PP
|
||||
@ -55,7 +54,7 @@ the command line and executes them before reading from \f[B]stdin\f[R].
|
||||
.PP
|
||||
The following are the options that bc(1) accepts.
|
||||
.TP
|
||||
\f[B]-g\f[R], \f[B]\[en]global-stacks\f[R]
|
||||
\f[B]-g\f[R], \f[B]--global-stacks\f[R]
|
||||
Turns the globals \f[B]ibase\f[R], \f[B]obase\f[R], \f[B]scale\f[R], and
|
||||
\f[B]seed\f[R] into stacks.
|
||||
.RS
|
||||
@ -147,10 +146,10 @@ is ignored.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-h\f[R], \f[B]\[en]help\f[R]
|
||||
\f[B]-h\f[R], \f[B]--help\f[R]
|
||||
Prints a usage message and quits.
|
||||
.TP
|
||||
\f[B]-i\f[R], \f[B]\[en]interactive\f[R]
|
||||
\f[B]-i\f[R], \f[B]--interactive\f[R]
|
||||
Forces interactive mode.
|
||||
(See the \f[B]INTERACTIVE MODE\f[R] section.)
|
||||
.RS
|
||||
@ -158,7 +157,7 @@ Forces interactive mode.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-l\f[R], \f[B]\[en]mathlib\f[R]
|
||||
\f[B]-l\f[R], \f[B]--mathlib\f[R]
|
||||
Sets \f[B]scale\f[R] (see the \f[B]SYNTAX\f[R] section) to \f[B]20\f[R]
|
||||
and loads the included math library and the extended math library before
|
||||
running any code, including any expressions or files specified on the
|
||||
@ -168,25 +167,25 @@ command line.
|
||||
To learn what is in the libraries, see the \f[B]LIBRARY\f[R] section.
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-P\f[R], \f[B]\[en]no-prompt\f[R]
|
||||
\f[B]-P\f[R], \f[B]--no-prompt\f[R]
|
||||
This option is a no-op.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-q\f[R], \f[B]\[en]quiet\f[R]
|
||||
\f[B]-q\f[R], \f[B]--quiet\f[R]
|
||||
This option is for compatibility with the GNU
|
||||
bc(1) (https://www.gnu.org/software/bc/); it is a no-op.
|
||||
Without this option, GNU bc(1) prints a copyright header.
|
||||
This bc(1) only prints the copyright header if one or more of the
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], or \f[B]\[en]version\f[R] options are given.
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], or \f[B]--version\f[R] options are given.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-s\f[R], \f[B]\[en]standard\f[R]
|
||||
\f[B]-s\f[R], \f[B]--standard\f[R]
|
||||
Process exactly the language defined by the
|
||||
standard (https://pubs.opengroup.org/onlinepubs/9699919799/utilities/bc.html)
|
||||
and error if any extensions are used.
|
||||
@ -195,15 +194,15 @@ and error if any extensions are used.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]\[en]version\f[R]
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]--version\f[R]
|
||||
Print the version information (copyright header) and exit.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-w\f[R], \f[B]\[en]warn\f[R]
|
||||
Like \f[B]-s\f[R] and \f[B]\[en]standard\f[R], except that warnings (and
|
||||
\f[B]-w\f[R], \f[B]--warn\f[R]
|
||||
Like \f[B]-s\f[R] and \f[B]--standard\f[R], except that warnings (and
|
||||
not errors) are printed for non-standard extensions and execution
|
||||
continues normally.
|
||||
.RS
|
||||
@ -211,7 +210,7 @@ continues normally.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]\[en]expression\f[R]=\f[I]expr\f[R]
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]--expression\f[R]=\f[I]expr\f[R]
|
||||
Evaluates \f[I]expr\f[R].
|
||||
If multiple expressions are given, they are evaluated in order.
|
||||
If files are given as well (see below), the expressions and files are
|
||||
@ -224,17 +223,17 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, bc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R], whether on the command-line or in
|
||||
\f[B]BC_ENV_ARGS\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]\[en]file\f[R]=\f[I]file\f[R]
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]--file\f[R]=\f[I]file\f[R]
|
||||
Reads in \f[I]file\f[R] and evaluates it, line by line, as though it
|
||||
were read through \f[B]stdin\f[R].
|
||||
If expressions are also given (see above), the expressions are evaluated
|
||||
@ -245,9 +244,9 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, bc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
@ -312,8 +311,8 @@ constant numbers.
|
||||
It is the \[lq]input\[rq] base, or the number base used for interpreting
|
||||
input numbers.
|
||||
\f[B]ibase\f[R] is initially \f[B]10\f[R].
|
||||
If the \f[B]-s\f[R] (\f[B]\[en]standard\f[R]) and \f[B]-w\f[R]
|
||||
(\f[B]\[en]warn\f[R]) flags were not given on the command line, the max
|
||||
If the \f[B]-s\f[R] (\f[B]--standard\f[R]) and \f[B]-w\f[R]
|
||||
(\f[B]--warn\f[R]) flags were not given on the command line, the max
|
||||
allowable value for \f[B]ibase\f[R] is \f[B]36\f[R].
|
||||
Otherwise, it is \f[B]16\f[R].
|
||||
The min allowable value for \f[B]ibase\f[R] is \f[B]2\f[R].
|
||||
@ -572,7 +571,7 @@ The following arithmetic and logical operators can be used.
|
||||
They are listed in order of decreasing precedence.
|
||||
Operators in the same group have the same precedence.
|
||||
.TP
|
||||
\f[B]++\f[R] \f[B]\[en]\f[R]
|
||||
\f[B]++\f[R] \f[B]--\f[R]
|
||||
Type: Prefix and Postfix
|
||||
.RS
|
||||
.PP
|
||||
@ -682,7 +681,7 @@ Description: \f[B]boolean or\f[R]
|
||||
.PP
|
||||
The operators will be described in more detail below.
|
||||
.TP
|
||||
\f[B]++\f[R] \f[B]\[en]\f[R]
|
||||
\f[B]++\f[R] \f[B]--\f[R]
|
||||
The prefix and postfix \f[B]increment\f[R] and \f[B]decrement\f[R]
|
||||
operators behave exactly like they would in C.
|
||||
They require a named expression (see the \f[I]Named Expressions\f[R]
|
||||
@ -1128,7 +1127,7 @@ This is a \f[B]non-portable extension\f[R].
|
||||
.PP
|
||||
All of the functions below, including the functions in the extended math
|
||||
library (see the \f[I]Extended Library\f[R] subsection below), are
|
||||
available when the \f[B]-l\f[R] or \f[B]\[en]mathlib\f[R] command-line
|
||||
available when the \f[B]-l\f[R] or \f[B]--mathlib\f[R] command-line
|
||||
flags are given, except that the extended math library is not available
|
||||
when the \f[B]-s\f[R] option, the \f[B]-w\f[R] option, or equivalents
|
||||
are given.
|
||||
@ -1189,7 +1188,7 @@ Functions\f[R] subsection below).
|
||||
.SS Extended Library
|
||||
.PP
|
||||
The extended library is \f[I]not\f[R] loaded when the
|
||||
\f[B]-s\f[R]/\f[B]\[en]standard\f[R] or \f[B]-w\f[R]/\f[B]\[en]warn\f[R]
|
||||
\f[B]-s\f[R]/\f[B]--standard\f[R] or \f[B]-w\f[R]/\f[B]--warn\f[R]
|
||||
options are given since they are not part of the library defined by the
|
||||
standard (https://pubs.opengroup.org/onlinepubs/9699919799/utilities/bc.html).
|
||||
.PP
|
||||
@ -1947,11 +1946,11 @@ interactive mode (see the \f[B]INTERACTIVE MODE\f[R] section), since
|
||||
bc(1) resets its state (see the \f[B]RESET\f[R] section) and accepts
|
||||
more input when one of those errors occurs in interactive mode.
|
||||
This is also the case when interactive mode is forced by the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.PP
|
||||
These exit statuses allow bc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.SH INTERACTIVE MODE
|
||||
.PP
|
||||
Per the
|
||||
@ -1959,7 +1958,7 @@ standard (https://pubs.opengroup.org/onlinepubs/9699919799/utilities/bc.html),
|
||||
bc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both \f[B]stdin\f[R]
|
||||
and \f[B]stdout\f[R] are hooked to a terminal, but the \f[B]-i\f[R] flag
|
||||
and \f[B]\[en]interactive\f[R] option can turn it on in other cases.
|
||||
and \f[B]--interactive\f[R] option can turn it on in other cases.
|
||||
.PP
|
||||
In interactive mode, bc(1) attempts to recover from errors (see the
|
||||
\f[B]RESET\f[R] section), and in normal execution, flushes
|
||||
|
||||
@ -34,8 +34,7 @@ bc - arbitrary-precision decimal arithmetic language and calculator
|
||||
|
||||
# SYNOPSIS
|
||||
|
||||
**bc** [**-ghilPqsvVw**] [**--global-stacks**] [**--help**] [**--interactive**] [**--mathlib**] [**--no-prompt**] [**--quiet**] [**--standard**] [**--warn**] [**--version**] [**-e** *expr*] [**--expression**=*expr*...] [**-f** *file*...] [**-file**=*file*...]
|
||||
[*file*...]
|
||||
**bc** [**-ghilPqsvVw**] [**-\-global-stacks**] [**-\-help**] [**-\-interactive**] [**-\-mathlib**] [**-\-no-prompt**] [**-\-quiet**] [**-\-standard**] [**-\-warn**] [**-\-version**] [**-e** *expr*] [**-\-expression**=*expr*...] [**-f** *file*...] [**-\-file**=*file*...] [*file*...]
|
||||
|
||||
# DESCRIPTION
|
||||
|
||||
@ -51,7 +50,7 @@ command line and executes them before reading from **stdin**.
|
||||
|
||||
The following are the options that bc(1) accepts.
|
||||
|
||||
**-g**, **--global-stacks**
|
||||
**-g**, **-\-global-stacks**
|
||||
|
||||
: Turns the globals **ibase**, **obase**, **scale**, and **seed** into stacks.
|
||||
|
||||
@ -119,17 +118,17 @@ The following are the options that bc(1) accepts.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-h**, **--help**
|
||||
**-h**, **-\-help**
|
||||
|
||||
: Prints a usage message and quits.
|
||||
|
||||
**-i**, **--interactive**
|
||||
**-i**, **-\-interactive**
|
||||
|
||||
: Forces interactive mode. (See the **INTERACTIVE MODE** section.)
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-l**, **--mathlib**
|
||||
**-l**, **-\-mathlib**
|
||||
|
||||
: Sets **scale** (see the **SYNTAX** section) to **20** and loads the included
|
||||
math library and the extended math library before running any code,
|
||||
@ -137,42 +136,42 @@ The following are the options that bc(1) accepts.
|
||||
|
||||
To learn what is in the libraries, see the **LIBRARY** section.
|
||||
|
||||
**-P**, **--no-prompt**
|
||||
**-P**, **-\-no-prompt**
|
||||
|
||||
: This option is a no-op.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-q**, **--quiet**
|
||||
**-q**, **-\-quiet**
|
||||
|
||||
: This option is for compatibility with the [GNU bc(1)][2]; it is a no-op.
|
||||
Without this option, GNU bc(1) prints a copyright header. This bc(1) only
|
||||
prints the copyright header if one or more of the **-v**, **-V**, or
|
||||
**--version** options are given.
|
||||
**-\-version** options are given.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-s**, **--standard**
|
||||
**-s**, **-\-standard**
|
||||
|
||||
: Process exactly the language defined by the [standard][1] and error if any
|
||||
extensions are used.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-v**, **-V**, **--version**
|
||||
**-v**, **-V**, **-\-version**
|
||||
|
||||
: Print the version information (copyright header) and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-w**, **--warn**
|
||||
**-w**, **-\-warn**
|
||||
|
||||
: Like **-s** and **--standard**, except that warnings (and not errors) are
|
||||
: Like **-s** and **-\-standard**, except that warnings (and not errors) are
|
||||
printed for non-standard extensions and execution continues normally.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-e** *expr*, **--expression**=*expr*
|
||||
**-e** *expr*, **-\-expression**=*expr*
|
||||
|
||||
: Evaluates *expr*. If multiple expressions are given, they are evaluated in
|
||||
order. If files are given as well (see below), the expressions and files are
|
||||
@ -182,14 +181,14 @@ The following are the options that bc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**, whether on the
|
||||
as an argument at least once to **-f** or **-\-file**, whether on the
|
||||
command-line or in **BC_ENV_ARGS**. However, if any other **-e**,
|
||||
**--expression**, **-f**, or **--file** arguments are given after **-f-** or
|
||||
equivalent is given, bc(1) will give a fatal error and exit.
|
||||
**-\-expression**, **-f**, or **-\-file** arguments are given after **-f-**
|
||||
or equivalent is given, bc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-f** *file*, **--file**=*file*
|
||||
**-f** *file*, **-\-file**=*file*
|
||||
|
||||
: Reads in *file* and evaluates it, line by line, as though it were read
|
||||
through **stdin**. If expressions are also given (see above), the
|
||||
@ -198,8 +197,8 @@ The following are the options that bc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**. However, if any other
|
||||
**-e**, **--expression**, **-f**, or **--file** arguments are given after
|
||||
as an argument at least once to **-f** or **-\-file**. However, if any other
|
||||
**-e**, **-\-expression**, **-f**, or **-\-file** arguments are given after
|
||||
**-f-** or equivalent is given, bc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
@ -254,8 +253,8 @@ Identifiers with more than one character (letter) are a
|
||||
|
||||
**ibase** is a global variable determining how to interpret constant numbers. It
|
||||
is the "input" base, or the number base used for interpreting input numbers.
|
||||
**ibase** is initially **10**. If the **-s** (**--standard**) and **-w**
|
||||
(**--warn**) flags were not given on the command line, the max allowable value
|
||||
**ibase** is initially **10**. If the **-s** (**-\-standard**) and **-w**
|
||||
(**-\-warn**) flags were not given on the command line, the max allowable value
|
||||
for **ibase** is **36**. Otherwise, it is **16**. The min allowable value for
|
||||
**ibase** is **2**. The max allowable value for **ibase** can be queried in
|
||||
bc(1) programs with the **maxibase()** built-in function.
|
||||
@ -445,7 +444,7 @@ The following arithmetic and logical operators can be used. They are listed in
|
||||
order of decreasing precedence. Operators in the same group have the same
|
||||
precedence.
|
||||
|
||||
**++** **--**
|
||||
**++** **-\-**
|
||||
|
||||
: Type: Prefix and Postfix
|
||||
|
||||
@ -543,7 +542,7 @@ precedence.
|
||||
|
||||
The operators will be described in more detail below.
|
||||
|
||||
**++** **--**
|
||||
**++** **-\-**
|
||||
|
||||
: The prefix and postfix **increment** and **decrement** operators behave
|
||||
exactly like they would in C. They require a named expression (see the
|
||||
@ -874,7 +873,7 @@ This is a **non-portable extension**.
|
||||
|
||||
All of the functions below, including the functions in the extended math
|
||||
library (see the *Extended Library* subsection below), are available when the
|
||||
**-l** or **--mathlib** command-line flags are given, except that the extended
|
||||
**-l** or **-\-mathlib** command-line flags are given, except that the extended
|
||||
math library is not available when the **-s** option, the **-w** option, or
|
||||
equivalents are given.
|
||||
|
||||
@ -926,8 +925,8 @@ The [standard][1] defines the following functions for the math library:
|
||||
|
||||
## Extended Library
|
||||
|
||||
The extended library is *not* loaded when the **-s**/**--standard** or
|
||||
**-w**/**--warn** options are given since they are not part of the library
|
||||
The extended library is *not* loaded when the **-s**/**-\-standard** or
|
||||
**-w**/**-\-warn** options are given since they are not part of the library
|
||||
defined by the [standard][1].
|
||||
|
||||
The extended library is a **non-portable extension**.
|
||||
@ -1595,17 +1594,17 @@ The other statuses will only be returned when bc(1) is not in interactive mode
|
||||
(see the **INTERACTIVE MODE** section), since bc(1) resets its state (see the
|
||||
**RESET** section) and accepts more input when one of those errors occurs in
|
||||
interactive mode. This is also the case when interactive mode is forced by the
|
||||
**-i** flag or **--interactive** option.
|
||||
**-i** flag or **-\-interactive** option.
|
||||
|
||||
These exit statuses allow bc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the **-i** flag or
|
||||
**--interactive** option.
|
||||
**-\-interactive** option.
|
||||
|
||||
# INTERACTIVE MODE
|
||||
|
||||
Per the [standard][1], bc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both **stdin** and **stdout**
|
||||
are hooked to a terminal, but the **-i** flag and **--interactive** option can
|
||||
are hooked to a terminal, but the **-i** flag and **-\-interactive** option can
|
||||
turn it on in other cases.
|
||||
|
||||
In interactive mode, bc(1) attempts to recover from errors (see the **RESET**
|
||||
|
||||
@ -25,19 +25,18 @@
|
||||
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
.\" POSSIBILITY OF SUCH DAMAGE.
|
||||
.\"
|
||||
.TH "BC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.TH "BC" "1" "March 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.SH NAME
|
||||
.PP
|
||||
bc - arbitrary-precision decimal arithmetic language and calculator
|
||||
.SH SYNOPSIS
|
||||
.PP
|
||||
\f[B]bc\f[R] [\f[B]-ghilPqsvVw\f[R]] [\f[B]\[en]global-stacks\f[R]]
|
||||
[\f[B]\[en]help\f[R]] [\f[B]\[en]interactive\f[R]]
|
||||
[\f[B]\[en]mathlib\f[R]] [\f[B]\[en]no-prompt\f[R]]
|
||||
[\f[B]\[en]quiet\f[R]] [\f[B]\[en]standard\f[R]] [\f[B]\[en]warn\f[R]]
|
||||
[\f[B]\[en]version\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]\[en]expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]-file\f[R]=\f[I]file\f[R]\&...]
|
||||
\f[B]bc\f[R] [\f[B]-ghilPqsvVw\f[R]] [\f[B]--global-stacks\f[R]]
|
||||
[\f[B]--help\f[R]] [\f[B]--interactive\f[R]] [\f[B]--mathlib\f[R]]
|
||||
[\f[B]--no-prompt\f[R]] [\f[B]--quiet\f[R]] [\f[B]--standard\f[R]]
|
||||
[\f[B]--warn\f[R]] [\f[B]--version\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]--expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]--file\f[R]=\f[I]file\f[R]\&...]
|
||||
[\f[I]file\f[R]\&...]
|
||||
.SH DESCRIPTION
|
||||
.PP
|
||||
@ -60,7 +59,7 @@ implementations.
|
||||
.PP
|
||||
The following are the options that bc(1) accepts.
|
||||
.TP
|
||||
\f[B]-g\f[R], \f[B]\[en]global-stacks\f[R]
|
||||
\f[B]-g\f[R], \f[B]--global-stacks\f[R]
|
||||
Turns the globals \f[B]ibase\f[R], \f[B]obase\f[R], \f[B]scale\f[R], and
|
||||
\f[B]seed\f[R] into stacks.
|
||||
.RS
|
||||
@ -152,10 +151,10 @@ is ignored.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-h\f[R], \f[B]\[en]help\f[R]
|
||||
\f[B]-h\f[R], \f[B]--help\f[R]
|
||||
Prints a usage message and quits.
|
||||
.TP
|
||||
\f[B]-i\f[R], \f[B]\[en]interactive\f[R]
|
||||
\f[B]-i\f[R], \f[B]--interactive\f[R]
|
||||
Forces interactive mode.
|
||||
(See the \f[B]INTERACTIVE MODE\f[R] section.)
|
||||
.RS
|
||||
@ -163,7 +162,7 @@ Forces interactive mode.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-l\f[R], \f[B]\[en]mathlib\f[R]
|
||||
\f[B]-l\f[R], \f[B]--mathlib\f[R]
|
||||
Sets \f[B]scale\f[R] (see the \f[B]SYNTAX\f[R] section) to \f[B]20\f[R]
|
||||
and loads the included math library and the extended math library before
|
||||
running any code, including any expressions or files specified on the
|
||||
@ -173,7 +172,7 @@ command line.
|
||||
To learn what is in the libraries, see the \f[B]LIBRARY\f[R] section.
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-P\f[R], \f[B]\[en]no-prompt\f[R]
|
||||
\f[B]-P\f[R], \f[B]--no-prompt\f[R]
|
||||
Disables the prompt in TTY mode.
|
||||
(The prompt is only enabled in TTY mode.
|
||||
See the \f[B]TTY MODE\f[R] section) This is mostly for those users that
|
||||
@ -185,18 +184,18 @@ Most of those users would want to put this option in
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-q\f[R], \f[B]\[en]quiet\f[R]
|
||||
\f[B]-q\f[R], \f[B]--quiet\f[R]
|
||||
This option is for compatibility with the GNU
|
||||
bc(1) (https://www.gnu.org/software/bc/); it is a no-op.
|
||||
Without this option, GNU bc(1) prints a copyright header.
|
||||
This bc(1) only prints the copyright header if one or more of the
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], or \f[B]\[en]version\f[R] options are given.
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], or \f[B]--version\f[R] options are given.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-s\f[R], \f[B]\[en]standard\f[R]
|
||||
\f[B]-s\f[R], \f[B]--standard\f[R]
|
||||
Process exactly the language defined by the
|
||||
standard (https://pubs.opengroup.org/onlinepubs/9699919799/utilities/bc.html)
|
||||
and error if any extensions are used.
|
||||
@ -205,15 +204,15 @@ and error if any extensions are used.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]\[en]version\f[R]
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]--version\f[R]
|
||||
Print the version information (copyright header) and exit.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-w\f[R], \f[B]\[en]warn\f[R]
|
||||
Like \f[B]-s\f[R] and \f[B]\[en]standard\f[R], except that warnings (and
|
||||
\f[B]-w\f[R], \f[B]--warn\f[R]
|
||||
Like \f[B]-s\f[R] and \f[B]--standard\f[R], except that warnings (and
|
||||
not errors) are printed for non-standard extensions and execution
|
||||
continues normally.
|
||||
.RS
|
||||
@ -221,7 +220,7 @@ continues normally.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]\[en]expression\f[R]=\f[I]expr\f[R]
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]--expression\f[R]=\f[I]expr\f[R]
|
||||
Evaluates \f[I]expr\f[R].
|
||||
If multiple expressions are given, they are evaluated in order.
|
||||
If files are given as well (see below), the expressions and files are
|
||||
@ -234,17 +233,17 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, bc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R], whether on the command-line or in
|
||||
\f[B]BC_ENV_ARGS\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]\[en]file\f[R]=\f[I]file\f[R]
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]--file\f[R]=\f[I]file\f[R]
|
||||
Reads in \f[I]file\f[R] and evaluates it, line by line, as though it
|
||||
were read through \f[B]stdin\f[R].
|
||||
If expressions are also given (see above), the expressions are evaluated
|
||||
@ -255,9 +254,9 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, bc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
@ -322,8 +321,8 @@ constant numbers.
|
||||
It is the \[lq]input\[rq] base, or the number base used for interpreting
|
||||
input numbers.
|
||||
\f[B]ibase\f[R] is initially \f[B]10\f[R].
|
||||
If the \f[B]-s\f[R] (\f[B]\[en]standard\f[R]) and \f[B]-w\f[R]
|
||||
(\f[B]\[en]warn\f[R]) flags were not given on the command line, the max
|
||||
If the \f[B]-s\f[R] (\f[B]--standard\f[R]) and \f[B]-w\f[R]
|
||||
(\f[B]--warn\f[R]) flags were not given on the command line, the max
|
||||
allowable value for \f[B]ibase\f[R] is \f[B]36\f[R].
|
||||
Otherwise, it is \f[B]16\f[R].
|
||||
The min allowable value for \f[B]ibase\f[R] is \f[B]2\f[R].
|
||||
@ -582,7 +581,7 @@ The following arithmetic and logical operators can be used.
|
||||
They are listed in order of decreasing precedence.
|
||||
Operators in the same group have the same precedence.
|
||||
.TP
|
||||
\f[B]++\f[R] \f[B]\[en]\f[R]
|
||||
\f[B]++\f[R] \f[B]--\f[R]
|
||||
Type: Prefix and Postfix
|
||||
.RS
|
||||
.PP
|
||||
@ -692,7 +691,7 @@ Description: \f[B]boolean or\f[R]
|
||||
.PP
|
||||
The operators will be described in more detail below.
|
||||
.TP
|
||||
\f[B]++\f[R] \f[B]\[en]\f[R]
|
||||
\f[B]++\f[R] \f[B]--\f[R]
|
||||
The prefix and postfix \f[B]increment\f[R] and \f[B]decrement\f[R]
|
||||
operators behave exactly like they would in C.
|
||||
They require a named expression (see the \f[I]Named Expressions\f[R]
|
||||
@ -1138,7 +1137,7 @@ This is a \f[B]non-portable extension\f[R].
|
||||
.PP
|
||||
All of the functions below, including the functions in the extended math
|
||||
library (see the \f[I]Extended Library\f[R] subsection below), are
|
||||
available when the \f[B]-l\f[R] or \f[B]\[en]mathlib\f[R] command-line
|
||||
available when the \f[B]-l\f[R] or \f[B]--mathlib\f[R] command-line
|
||||
flags are given, except that the extended math library is not available
|
||||
when the \f[B]-s\f[R] option, the \f[B]-w\f[R] option, or equivalents
|
||||
are given.
|
||||
@ -1199,7 +1198,7 @@ Functions\f[R] subsection below).
|
||||
.SS Extended Library
|
||||
.PP
|
||||
The extended library is \f[I]not\f[R] loaded when the
|
||||
\f[B]-s\f[R]/\f[B]\[en]standard\f[R] or \f[B]-w\f[R]/\f[B]\[en]warn\f[R]
|
||||
\f[B]-s\f[R]/\f[B]--standard\f[R] or \f[B]-w\f[R]/\f[B]--warn\f[R]
|
||||
options are given since they are not part of the library defined by the
|
||||
standard (https://pubs.opengroup.org/onlinepubs/9699919799/utilities/bc.html).
|
||||
.PP
|
||||
@ -1957,11 +1956,11 @@ interactive mode (see the \f[B]INTERACTIVE MODE\f[R] section), since
|
||||
bc(1) resets its state (see the \f[B]RESET\f[R] section) and accepts
|
||||
more input when one of those errors occurs in interactive mode.
|
||||
This is also the case when interactive mode is forced by the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.PP
|
||||
These exit statuses allow bc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.SH INTERACTIVE MODE
|
||||
.PP
|
||||
Per the
|
||||
@ -1969,7 +1968,7 @@ standard (https://pubs.opengroup.org/onlinepubs/9699919799/utilities/bc.html),
|
||||
bc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both \f[B]stdin\f[R]
|
||||
and \f[B]stdout\f[R] are hooked to a terminal, but the \f[B]-i\f[R] flag
|
||||
and \f[B]\[en]interactive\f[R] option can turn it on in other cases.
|
||||
and \f[B]--interactive\f[R] option can turn it on in other cases.
|
||||
.PP
|
||||
In interactive mode, bc(1) attempts to recover from errors (see the
|
||||
\f[B]RESET\f[R] section), and in normal execution, flushes
|
||||
|
||||
@ -34,8 +34,7 @@ bc - arbitrary-precision decimal arithmetic language and calculator
|
||||
|
||||
# SYNOPSIS
|
||||
|
||||
**bc** [**-ghilPqsvVw**] [**--global-stacks**] [**--help**] [**--interactive**] [**--mathlib**] [**--no-prompt**] [**--quiet**] [**--standard**] [**--warn**] [**--version**] [**-e** *expr*] [**--expression**=*expr*...] [**-f** *file*...] [**-file**=*file*...]
|
||||
[*file*...]
|
||||
**bc** [**-ghilPqsvVw**] [**-\-global-stacks**] [**-\-help**] [**-\-interactive**] [**-\-mathlib**] [**-\-no-prompt**] [**-\-quiet**] [**-\-standard**] [**-\-warn**] [**-\-version**] [**-e** *expr*] [**-\-expression**=*expr*...] [**-f** *file*...] [**-\-file**=*file*...] [*file*...]
|
||||
|
||||
# DESCRIPTION
|
||||
|
||||
@ -55,7 +54,7 @@ other implementations.
|
||||
|
||||
The following are the options that bc(1) accepts.
|
||||
|
||||
**-g**, **--global-stacks**
|
||||
**-g**, **-\-global-stacks**
|
||||
|
||||
: Turns the globals **ibase**, **obase**, **scale**, and **seed** into stacks.
|
||||
|
||||
@ -123,17 +122,17 @@ The following are the options that bc(1) accepts.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-h**, **--help**
|
||||
**-h**, **-\-help**
|
||||
|
||||
: Prints a usage message and quits.
|
||||
|
||||
**-i**, **--interactive**
|
||||
**-i**, **-\-interactive**
|
||||
|
||||
: Forces interactive mode. (See the **INTERACTIVE MODE** section.)
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-l**, **--mathlib**
|
||||
**-l**, **-\-mathlib**
|
||||
|
||||
: Sets **scale** (see the **SYNTAX** section) to **20** and loads the included
|
||||
math library and the extended math library before running any code,
|
||||
@ -141,7 +140,7 @@ The following are the options that bc(1) accepts.
|
||||
|
||||
To learn what is in the libraries, see the **LIBRARY** section.
|
||||
|
||||
**-P**, **--no-prompt**
|
||||
**-P**, **-\-no-prompt**
|
||||
|
||||
: Disables the prompt in TTY mode. (The prompt is only enabled in TTY mode.
|
||||
See the **TTY MODE** section) This is mostly for those users that do not
|
||||
@ -151,36 +150,36 @@ The following are the options that bc(1) accepts.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-q**, **--quiet**
|
||||
**-q**, **-\-quiet**
|
||||
|
||||
: This option is for compatibility with the [GNU bc(1)][2]; it is a no-op.
|
||||
Without this option, GNU bc(1) prints a copyright header. This bc(1) only
|
||||
prints the copyright header if one or more of the **-v**, **-V**, or
|
||||
**--version** options are given.
|
||||
**-\-version** options are given.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-s**, **--standard**
|
||||
**-s**, **-\-standard**
|
||||
|
||||
: Process exactly the language defined by the [standard][1] and error if any
|
||||
extensions are used.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-v**, **-V**, **--version**
|
||||
**-v**, **-V**, **-\-version**
|
||||
|
||||
: Print the version information (copyright header) and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-w**, **--warn**
|
||||
**-w**, **-\-warn**
|
||||
|
||||
: Like **-s** and **--standard**, except that warnings (and not errors) are
|
||||
: Like **-s** and **-\-standard**, except that warnings (and not errors) are
|
||||
printed for non-standard extensions and execution continues normally.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-e** *expr*, **--expression**=*expr*
|
||||
**-e** *expr*, **-\-expression**=*expr*
|
||||
|
||||
: Evaluates *expr*. If multiple expressions are given, they are evaluated in
|
||||
order. If files are given as well (see below), the expressions and files are
|
||||
@ -190,14 +189,14 @@ The following are the options that bc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**, whether on the
|
||||
as an argument at least once to **-f** or **-\-file**, whether on the
|
||||
command-line or in **BC_ENV_ARGS**. However, if any other **-e**,
|
||||
**--expression**, **-f**, or **--file** arguments are given after **-f-** or
|
||||
equivalent is given, bc(1) will give a fatal error and exit.
|
||||
**-\-expression**, **-f**, or **-\-file** arguments are given after **-f-**
|
||||
or equivalent is given, bc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-f** *file*, **--file**=*file*
|
||||
**-f** *file*, **-\-file**=*file*
|
||||
|
||||
: Reads in *file* and evaluates it, line by line, as though it were read
|
||||
through **stdin**. If expressions are also given (see above), the
|
||||
@ -206,8 +205,8 @@ The following are the options that bc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**. However, if any other
|
||||
**-e**, **--expression**, **-f**, or **--file** arguments are given after
|
||||
as an argument at least once to **-f** or **-\-file**. However, if any other
|
||||
**-e**, **-\-expression**, **-f**, or **-\-file** arguments are given after
|
||||
**-f-** or equivalent is given, bc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
@ -262,8 +261,8 @@ Identifiers with more than one character (letter) are a
|
||||
|
||||
**ibase** is a global variable determining how to interpret constant numbers. It
|
||||
is the "input" base, or the number base used for interpreting input numbers.
|
||||
**ibase** is initially **10**. If the **-s** (**--standard**) and **-w**
|
||||
(**--warn**) flags were not given on the command line, the max allowable value
|
||||
**ibase** is initially **10**. If the **-s** (**-\-standard**) and **-w**
|
||||
(**-\-warn**) flags were not given on the command line, the max allowable value
|
||||
for **ibase** is **36**. Otherwise, it is **16**. The min allowable value for
|
||||
**ibase** is **2**. The max allowable value for **ibase** can be queried in
|
||||
bc(1) programs with the **maxibase()** built-in function.
|
||||
@ -453,7 +452,7 @@ The following arithmetic and logical operators can be used. They are listed in
|
||||
order of decreasing precedence. Operators in the same group have the same
|
||||
precedence.
|
||||
|
||||
**++** **--**
|
||||
**++** **-\-**
|
||||
|
||||
: Type: Prefix and Postfix
|
||||
|
||||
@ -551,7 +550,7 @@ precedence.
|
||||
|
||||
The operators will be described in more detail below.
|
||||
|
||||
**++** **--**
|
||||
**++** **-\-**
|
||||
|
||||
: The prefix and postfix **increment** and **decrement** operators behave
|
||||
exactly like they would in C. They require a named expression (see the
|
||||
@ -882,7 +881,7 @@ This is a **non-portable extension**.
|
||||
|
||||
All of the functions below, including the functions in the extended math
|
||||
library (see the *Extended Library* subsection below), are available when the
|
||||
**-l** or **--mathlib** command-line flags are given, except that the extended
|
||||
**-l** or **-\-mathlib** command-line flags are given, except that the extended
|
||||
math library is not available when the **-s** option, the **-w** option, or
|
||||
equivalents are given.
|
||||
|
||||
@ -934,8 +933,8 @@ The [standard][1] defines the following functions for the math library:
|
||||
|
||||
## Extended Library
|
||||
|
||||
The extended library is *not* loaded when the **-s**/**--standard** or
|
||||
**-w**/**--warn** options are given since they are not part of the library
|
||||
The extended library is *not* loaded when the **-s**/**-\-standard** or
|
||||
**-w**/**-\-warn** options are given since they are not part of the library
|
||||
defined by the [standard][1].
|
||||
|
||||
The extended library is a **non-portable extension**.
|
||||
@ -1603,17 +1602,17 @@ The other statuses will only be returned when bc(1) is not in interactive mode
|
||||
(see the **INTERACTIVE MODE** section), since bc(1) resets its state (see the
|
||||
**RESET** section) and accepts more input when one of those errors occurs in
|
||||
interactive mode. This is also the case when interactive mode is forced by the
|
||||
**-i** flag or **--interactive** option.
|
||||
**-i** flag or **-\-interactive** option.
|
||||
|
||||
These exit statuses allow bc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the **-i** flag or
|
||||
**--interactive** option.
|
||||
**-\-interactive** option.
|
||||
|
||||
# INTERACTIVE MODE
|
||||
|
||||
Per the [standard][1], bc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both **stdin** and **stdout**
|
||||
are hooked to a terminal, but the **-i** flag and **--interactive** option can
|
||||
are hooked to a terminal, but the **-i** flag and **-\-interactive** option can
|
||||
turn it on in other cases.
|
||||
|
||||
In interactive mode, bc(1) attempts to recover from errors (see the **RESET**
|
||||
|
||||
@ -25,19 +25,18 @@
|
||||
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
.\" POSSIBILITY OF SUCH DAMAGE.
|
||||
.\"
|
||||
.TH "BC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.TH "BC" "1" "March 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.SH NAME
|
||||
.PP
|
||||
bc - arbitrary-precision decimal arithmetic language and calculator
|
||||
.SH SYNOPSIS
|
||||
.PP
|
||||
\f[B]bc\f[R] [\f[B]-ghilPqsvVw\f[R]] [\f[B]\[en]global-stacks\f[R]]
|
||||
[\f[B]\[en]help\f[R]] [\f[B]\[en]interactive\f[R]]
|
||||
[\f[B]\[en]mathlib\f[R]] [\f[B]\[en]no-prompt\f[R]]
|
||||
[\f[B]\[en]quiet\f[R]] [\f[B]\[en]standard\f[R]] [\f[B]\[en]warn\f[R]]
|
||||
[\f[B]\[en]version\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]\[en]expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]-file\f[R]=\f[I]file\f[R]\&...]
|
||||
\f[B]bc\f[R] [\f[B]-ghilPqsvVw\f[R]] [\f[B]--global-stacks\f[R]]
|
||||
[\f[B]--help\f[R]] [\f[B]--interactive\f[R]] [\f[B]--mathlib\f[R]]
|
||||
[\f[B]--no-prompt\f[R]] [\f[B]--quiet\f[R]] [\f[B]--standard\f[R]]
|
||||
[\f[B]--warn\f[R]] [\f[B]--version\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]--expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]--file\f[R]=\f[I]file\f[R]\&...]
|
||||
[\f[I]file\f[R]\&...]
|
||||
.SH DESCRIPTION
|
||||
.PP
|
||||
@ -60,7 +59,7 @@ implementations.
|
||||
.PP
|
||||
The following are the options that bc(1) accepts.
|
||||
.TP
|
||||
\f[B]-g\f[R], \f[B]\[en]global-stacks\f[R]
|
||||
\f[B]-g\f[R], \f[B]--global-stacks\f[R]
|
||||
Turns the globals \f[B]ibase\f[R], \f[B]obase\f[R], \f[B]scale\f[R], and
|
||||
\f[B]seed\f[R] into stacks.
|
||||
.RS
|
||||
@ -152,10 +151,10 @@ is ignored.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-h\f[R], \f[B]\[en]help\f[R]
|
||||
\f[B]-h\f[R], \f[B]--help\f[R]
|
||||
Prints a usage message and quits.
|
||||
.TP
|
||||
\f[B]-i\f[R], \f[B]\[en]interactive\f[R]
|
||||
\f[B]-i\f[R], \f[B]--interactive\f[R]
|
||||
Forces interactive mode.
|
||||
(See the \f[B]INTERACTIVE MODE\f[R] section.)
|
||||
.RS
|
||||
@ -163,7 +162,7 @@ Forces interactive mode.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-l\f[R], \f[B]\[en]mathlib\f[R]
|
||||
\f[B]-l\f[R], \f[B]--mathlib\f[R]
|
||||
Sets \f[B]scale\f[R] (see the \f[B]SYNTAX\f[R] section) to \f[B]20\f[R]
|
||||
and loads the included math library and the extended math library before
|
||||
running any code, including any expressions or files specified on the
|
||||
@ -173,25 +172,25 @@ command line.
|
||||
To learn what is in the libraries, see the \f[B]LIBRARY\f[R] section.
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-P\f[R], \f[B]\[en]no-prompt\f[R]
|
||||
\f[B]-P\f[R], \f[B]--no-prompt\f[R]
|
||||
This option is a no-op.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-q\f[R], \f[B]\[en]quiet\f[R]
|
||||
\f[B]-q\f[R], \f[B]--quiet\f[R]
|
||||
This option is for compatibility with the GNU
|
||||
bc(1) (https://www.gnu.org/software/bc/); it is a no-op.
|
||||
Without this option, GNU bc(1) prints a copyright header.
|
||||
This bc(1) only prints the copyright header if one or more of the
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], or \f[B]\[en]version\f[R] options are given.
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], or \f[B]--version\f[R] options are given.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-s\f[R], \f[B]\[en]standard\f[R]
|
||||
\f[B]-s\f[R], \f[B]--standard\f[R]
|
||||
Process exactly the language defined by the
|
||||
standard (https://pubs.opengroup.org/onlinepubs/9699919799/utilities/bc.html)
|
||||
and error if any extensions are used.
|
||||
@ -200,15 +199,15 @@ and error if any extensions are used.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]\[en]version\f[R]
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]--version\f[R]
|
||||
Print the version information (copyright header) and exit.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-w\f[R], \f[B]\[en]warn\f[R]
|
||||
Like \f[B]-s\f[R] and \f[B]\[en]standard\f[R], except that warnings (and
|
||||
\f[B]-w\f[R], \f[B]--warn\f[R]
|
||||
Like \f[B]-s\f[R] and \f[B]--standard\f[R], except that warnings (and
|
||||
not errors) are printed for non-standard extensions and execution
|
||||
continues normally.
|
||||
.RS
|
||||
@ -216,7 +215,7 @@ continues normally.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]\[en]expression\f[R]=\f[I]expr\f[R]
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]--expression\f[R]=\f[I]expr\f[R]
|
||||
Evaluates \f[I]expr\f[R].
|
||||
If multiple expressions are given, they are evaluated in order.
|
||||
If files are given as well (see below), the expressions and files are
|
||||
@ -229,17 +228,17 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, bc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R], whether on the command-line or in
|
||||
\f[B]BC_ENV_ARGS\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]\[en]file\f[R]=\f[I]file\f[R]
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]--file\f[R]=\f[I]file\f[R]
|
||||
Reads in \f[I]file\f[R] and evaluates it, line by line, as though it
|
||||
were read through \f[B]stdin\f[R].
|
||||
If expressions are also given (see above), the expressions are evaluated
|
||||
@ -250,9 +249,9 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, bc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
@ -317,8 +316,8 @@ constant numbers.
|
||||
It is the \[lq]input\[rq] base, or the number base used for interpreting
|
||||
input numbers.
|
||||
\f[B]ibase\f[R] is initially \f[B]10\f[R].
|
||||
If the \f[B]-s\f[R] (\f[B]\[en]standard\f[R]) and \f[B]-w\f[R]
|
||||
(\f[B]\[en]warn\f[R]) flags were not given on the command line, the max
|
||||
If the \f[B]-s\f[R] (\f[B]--standard\f[R]) and \f[B]-w\f[R]
|
||||
(\f[B]--warn\f[R]) flags were not given on the command line, the max
|
||||
allowable value for \f[B]ibase\f[R] is \f[B]36\f[R].
|
||||
Otherwise, it is \f[B]16\f[R].
|
||||
The min allowable value for \f[B]ibase\f[R] is \f[B]2\f[R].
|
||||
@ -577,7 +576,7 @@ The following arithmetic and logical operators can be used.
|
||||
They are listed in order of decreasing precedence.
|
||||
Operators in the same group have the same precedence.
|
||||
.TP
|
||||
\f[B]++\f[R] \f[B]\[en]\f[R]
|
||||
\f[B]++\f[R] \f[B]--\f[R]
|
||||
Type: Prefix and Postfix
|
||||
.RS
|
||||
.PP
|
||||
@ -687,7 +686,7 @@ Description: \f[B]boolean or\f[R]
|
||||
.PP
|
||||
The operators will be described in more detail below.
|
||||
.TP
|
||||
\f[B]++\f[R] \f[B]\[en]\f[R]
|
||||
\f[B]++\f[R] \f[B]--\f[R]
|
||||
The prefix and postfix \f[B]increment\f[R] and \f[B]decrement\f[R]
|
||||
operators behave exactly like they would in C.
|
||||
They require a named expression (see the \f[I]Named Expressions\f[R]
|
||||
@ -1133,7 +1132,7 @@ This is a \f[B]non-portable extension\f[R].
|
||||
.PP
|
||||
All of the functions below, including the functions in the extended math
|
||||
library (see the \f[I]Extended Library\f[R] subsection below), are
|
||||
available when the \f[B]-l\f[R] or \f[B]\[en]mathlib\f[R] command-line
|
||||
available when the \f[B]-l\f[R] or \f[B]--mathlib\f[R] command-line
|
||||
flags are given, except that the extended math library is not available
|
||||
when the \f[B]-s\f[R] option, the \f[B]-w\f[R] option, or equivalents
|
||||
are given.
|
||||
@ -1194,7 +1193,7 @@ Functions\f[R] subsection below).
|
||||
.SS Extended Library
|
||||
.PP
|
||||
The extended library is \f[I]not\f[R] loaded when the
|
||||
\f[B]-s\f[R]/\f[B]\[en]standard\f[R] or \f[B]-w\f[R]/\f[B]\[en]warn\f[R]
|
||||
\f[B]-s\f[R]/\f[B]--standard\f[R] or \f[B]-w\f[R]/\f[B]--warn\f[R]
|
||||
options are given since they are not part of the library defined by the
|
||||
standard (https://pubs.opengroup.org/onlinepubs/9699919799/utilities/bc.html).
|
||||
.PP
|
||||
@ -1952,11 +1951,11 @@ interactive mode (see the \f[B]INTERACTIVE MODE\f[R] section), since
|
||||
bc(1) resets its state (see the \f[B]RESET\f[R] section) and accepts
|
||||
more input when one of those errors occurs in interactive mode.
|
||||
This is also the case when interactive mode is forced by the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.PP
|
||||
These exit statuses allow bc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.SH INTERACTIVE MODE
|
||||
.PP
|
||||
Per the
|
||||
@ -1964,7 +1963,7 @@ standard (https://pubs.opengroup.org/onlinepubs/9699919799/utilities/bc.html),
|
||||
bc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both \f[B]stdin\f[R]
|
||||
and \f[B]stdout\f[R] are hooked to a terminal, but the \f[B]-i\f[R] flag
|
||||
and \f[B]\[en]interactive\f[R] option can turn it on in other cases.
|
||||
and \f[B]--interactive\f[R] option can turn it on in other cases.
|
||||
.PP
|
||||
In interactive mode, bc(1) attempts to recover from errors (see the
|
||||
\f[B]RESET\f[R] section), and in normal execution, flushes
|
||||
|
||||
@ -34,8 +34,7 @@ bc - arbitrary-precision decimal arithmetic language and calculator
|
||||
|
||||
# SYNOPSIS
|
||||
|
||||
**bc** [**-ghilPqsvVw**] [**--global-stacks**] [**--help**] [**--interactive**] [**--mathlib**] [**--no-prompt**] [**--quiet**] [**--standard**] [**--warn**] [**--version**] [**-e** *expr*] [**--expression**=*expr*...] [**-f** *file*...] [**-file**=*file*...]
|
||||
[*file*...]
|
||||
**bc** [**-ghilPqsvVw**] [**-\-global-stacks**] [**-\-help**] [**-\-interactive**] [**-\-mathlib**] [**-\-no-prompt**] [**-\-quiet**] [**-\-standard**] [**-\-warn**] [**-\-version**] [**-e** *expr*] [**-\-expression**=*expr*...] [**-f** *file*...] [**-\-file**=*file*...] [*file*...]
|
||||
|
||||
# DESCRIPTION
|
||||
|
||||
@ -55,7 +54,7 @@ other implementations.
|
||||
|
||||
The following are the options that bc(1) accepts.
|
||||
|
||||
**-g**, **--global-stacks**
|
||||
**-g**, **-\-global-stacks**
|
||||
|
||||
: Turns the globals **ibase**, **obase**, **scale**, and **seed** into stacks.
|
||||
|
||||
@ -123,17 +122,17 @@ The following are the options that bc(1) accepts.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-h**, **--help**
|
||||
**-h**, **-\-help**
|
||||
|
||||
: Prints a usage message and quits.
|
||||
|
||||
**-i**, **--interactive**
|
||||
**-i**, **-\-interactive**
|
||||
|
||||
: Forces interactive mode. (See the **INTERACTIVE MODE** section.)
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-l**, **--mathlib**
|
||||
**-l**, **-\-mathlib**
|
||||
|
||||
: Sets **scale** (see the **SYNTAX** section) to **20** and loads the included
|
||||
math library and the extended math library before running any code,
|
||||
@ -141,42 +140,42 @@ The following are the options that bc(1) accepts.
|
||||
|
||||
To learn what is in the libraries, see the **LIBRARY** section.
|
||||
|
||||
**-P**, **--no-prompt**
|
||||
**-P**, **-\-no-prompt**
|
||||
|
||||
: This option is a no-op.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-q**, **--quiet**
|
||||
**-q**, **-\-quiet**
|
||||
|
||||
: This option is for compatibility with the [GNU bc(1)][2]; it is a no-op.
|
||||
Without this option, GNU bc(1) prints a copyright header. This bc(1) only
|
||||
prints the copyright header if one or more of the **-v**, **-V**, or
|
||||
**--version** options are given.
|
||||
**-\-version** options are given.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-s**, **--standard**
|
||||
**-s**, **-\-standard**
|
||||
|
||||
: Process exactly the language defined by the [standard][1] and error if any
|
||||
extensions are used.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-v**, **-V**, **--version**
|
||||
**-v**, **-V**, **-\-version**
|
||||
|
||||
: Print the version information (copyright header) and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-w**, **--warn**
|
||||
**-w**, **-\-warn**
|
||||
|
||||
: Like **-s** and **--standard**, except that warnings (and not errors) are
|
||||
: Like **-s** and **-\-standard**, except that warnings (and not errors) are
|
||||
printed for non-standard extensions and execution continues normally.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-e** *expr*, **--expression**=*expr*
|
||||
**-e** *expr*, **-\-expression**=*expr*
|
||||
|
||||
: Evaluates *expr*. If multiple expressions are given, they are evaluated in
|
||||
order. If files are given as well (see below), the expressions and files are
|
||||
@ -186,14 +185,14 @@ The following are the options that bc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**, whether on the
|
||||
as an argument at least once to **-f** or **-\-file**, whether on the
|
||||
command-line or in **BC_ENV_ARGS**. However, if any other **-e**,
|
||||
**--expression**, **-f**, or **--file** arguments are given after **-f-** or
|
||||
equivalent is given, bc(1) will give a fatal error and exit.
|
||||
**-\-expression**, **-f**, or **-\-file** arguments are given after **-f-**
|
||||
or equivalent is given, bc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-f** *file*, **--file**=*file*
|
||||
**-f** *file*, **-\-file**=*file*
|
||||
|
||||
: Reads in *file* and evaluates it, line by line, as though it were read
|
||||
through **stdin**. If expressions are also given (see above), the
|
||||
@ -202,8 +201,8 @@ The following are the options that bc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**. However, if any other
|
||||
**-e**, **--expression**, **-f**, or **--file** arguments are given after
|
||||
as an argument at least once to **-f** or **-\-file**. However, if any other
|
||||
**-e**, **-\-expression**, **-f**, or **-\-file** arguments are given after
|
||||
**-f-** or equivalent is given, bc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
@ -258,8 +257,8 @@ Identifiers with more than one character (letter) are a
|
||||
|
||||
**ibase** is a global variable determining how to interpret constant numbers. It
|
||||
is the "input" base, or the number base used for interpreting input numbers.
|
||||
**ibase** is initially **10**. If the **-s** (**--standard**) and **-w**
|
||||
(**--warn**) flags were not given on the command line, the max allowable value
|
||||
**ibase** is initially **10**. If the **-s** (**-\-standard**) and **-w**
|
||||
(**-\-warn**) flags were not given on the command line, the max allowable value
|
||||
for **ibase** is **36**. Otherwise, it is **16**. The min allowable value for
|
||||
**ibase** is **2**. The max allowable value for **ibase** can be queried in
|
||||
bc(1) programs with the **maxibase()** built-in function.
|
||||
@ -449,7 +448,7 @@ The following arithmetic and logical operators can be used. They are listed in
|
||||
order of decreasing precedence. Operators in the same group have the same
|
||||
precedence.
|
||||
|
||||
**++** **--**
|
||||
**++** **-\-**
|
||||
|
||||
: Type: Prefix and Postfix
|
||||
|
||||
@ -547,7 +546,7 @@ precedence.
|
||||
|
||||
The operators will be described in more detail below.
|
||||
|
||||
**++** **--**
|
||||
**++** **-\-**
|
||||
|
||||
: The prefix and postfix **increment** and **decrement** operators behave
|
||||
exactly like they would in C. They require a named expression (see the
|
||||
@ -878,7 +877,7 @@ This is a **non-portable extension**.
|
||||
|
||||
All of the functions below, including the functions in the extended math
|
||||
library (see the *Extended Library* subsection below), are available when the
|
||||
**-l** or **--mathlib** command-line flags are given, except that the extended
|
||||
**-l** or **-\-mathlib** command-line flags are given, except that the extended
|
||||
math library is not available when the **-s** option, the **-w** option, or
|
||||
equivalents are given.
|
||||
|
||||
@ -930,8 +929,8 @@ The [standard][1] defines the following functions for the math library:
|
||||
|
||||
## Extended Library
|
||||
|
||||
The extended library is *not* loaded when the **-s**/**--standard** or
|
||||
**-w**/**--warn** options are given since they are not part of the library
|
||||
The extended library is *not* loaded when the **-s**/**-\-standard** or
|
||||
**-w**/**-\-warn** options are given since they are not part of the library
|
||||
defined by the [standard][1].
|
||||
|
||||
The extended library is a **non-portable extension**.
|
||||
@ -1599,17 +1598,17 @@ The other statuses will only be returned when bc(1) is not in interactive mode
|
||||
(see the **INTERACTIVE MODE** section), since bc(1) resets its state (see the
|
||||
**RESET** section) and accepts more input when one of those errors occurs in
|
||||
interactive mode. This is also the case when interactive mode is forced by the
|
||||
**-i** flag or **--interactive** option.
|
||||
**-i** flag or **-\-interactive** option.
|
||||
|
||||
These exit statuses allow bc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the **-i** flag or
|
||||
**--interactive** option.
|
||||
**-\-interactive** option.
|
||||
|
||||
# INTERACTIVE MODE
|
||||
|
||||
Per the [standard][1], bc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both **stdin** and **stdout**
|
||||
are hooked to a terminal, but the **-i** flag and **--interactive** option can
|
||||
are hooked to a terminal, but the **-i** flag and **-\-interactive** option can
|
||||
turn it on in other cases.
|
||||
|
||||
In interactive mode, bc(1) attempts to recover from errors (see the **RESET**
|
||||
|
||||
@ -25,19 +25,18 @@
|
||||
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
.\" POSSIBILITY OF SUCH DAMAGE.
|
||||
.\"
|
||||
.TH "BC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.TH "BC" "1" "March 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.SH NAME
|
||||
.PP
|
||||
bc - arbitrary-precision decimal arithmetic language and calculator
|
||||
.SH SYNOPSIS
|
||||
.PP
|
||||
\f[B]bc\f[R] [\f[B]-ghilPqsvVw\f[R]] [\f[B]\[en]global-stacks\f[R]]
|
||||
[\f[B]\[en]help\f[R]] [\f[B]\[en]interactive\f[R]]
|
||||
[\f[B]\[en]mathlib\f[R]] [\f[B]\[en]no-prompt\f[R]]
|
||||
[\f[B]\[en]quiet\f[R]] [\f[B]\[en]standard\f[R]] [\f[B]\[en]warn\f[R]]
|
||||
[\f[B]\[en]version\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]\[en]expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]-file\f[R]=\f[I]file\f[R]\&...]
|
||||
\f[B]bc\f[R] [\f[B]-ghilPqsvVw\f[R]] [\f[B]--global-stacks\f[R]]
|
||||
[\f[B]--help\f[R]] [\f[B]--interactive\f[R]] [\f[B]--mathlib\f[R]]
|
||||
[\f[B]--no-prompt\f[R]] [\f[B]--quiet\f[R]] [\f[B]--standard\f[R]]
|
||||
[\f[B]--warn\f[R]] [\f[B]--version\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]--expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]--file\f[R]=\f[I]file\f[R]\&...]
|
||||
[\f[I]file\f[R]\&...]
|
||||
.SH DESCRIPTION
|
||||
.PP
|
||||
@ -60,7 +59,7 @@ implementations.
|
||||
.PP
|
||||
The following are the options that bc(1) accepts.
|
||||
.TP
|
||||
\f[B]-g\f[R], \f[B]\[en]global-stacks\f[R]
|
||||
\f[B]-g\f[R], \f[B]--global-stacks\f[R]
|
||||
Turns the globals \f[B]ibase\f[R], \f[B]obase\f[R], \f[B]scale\f[R], and
|
||||
\f[B]seed\f[R] into stacks.
|
||||
.RS
|
||||
@ -152,10 +151,10 @@ is ignored.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-h\f[R], \f[B]\[en]help\f[R]
|
||||
\f[B]-h\f[R], \f[B]--help\f[R]
|
||||
Prints a usage message and quits.
|
||||
.TP
|
||||
\f[B]-i\f[R], \f[B]\[en]interactive\f[R]
|
||||
\f[B]-i\f[R], \f[B]--interactive\f[R]
|
||||
Forces interactive mode.
|
||||
(See the \f[B]INTERACTIVE MODE\f[R] section.)
|
||||
.RS
|
||||
@ -163,7 +162,7 @@ Forces interactive mode.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-l\f[R], \f[B]\[en]mathlib\f[R]
|
||||
\f[B]-l\f[R], \f[B]--mathlib\f[R]
|
||||
Sets \f[B]scale\f[R] (see the \f[B]SYNTAX\f[R] section) to \f[B]20\f[R]
|
||||
and loads the included math library and the extended math library before
|
||||
running any code, including any expressions or files specified on the
|
||||
@ -173,25 +172,25 @@ command line.
|
||||
To learn what is in the libraries, see the \f[B]LIBRARY\f[R] section.
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-P\f[R], \f[B]\[en]no-prompt\f[R]
|
||||
\f[B]-P\f[R], \f[B]--no-prompt\f[R]
|
||||
This option is a no-op.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-q\f[R], \f[B]\[en]quiet\f[R]
|
||||
\f[B]-q\f[R], \f[B]--quiet\f[R]
|
||||
This option is for compatibility with the GNU
|
||||
bc(1) (https://www.gnu.org/software/bc/); it is a no-op.
|
||||
Without this option, GNU bc(1) prints a copyright header.
|
||||
This bc(1) only prints the copyright header if one or more of the
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], or \f[B]\[en]version\f[R] options are given.
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], or \f[B]--version\f[R] options are given.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-s\f[R], \f[B]\[en]standard\f[R]
|
||||
\f[B]-s\f[R], \f[B]--standard\f[R]
|
||||
Process exactly the language defined by the
|
||||
standard (https://pubs.opengroup.org/onlinepubs/9699919799/utilities/bc.html)
|
||||
and error if any extensions are used.
|
||||
@ -200,15 +199,15 @@ and error if any extensions are used.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]\[en]version\f[R]
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]--version\f[R]
|
||||
Print the version information (copyright header) and exit.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-w\f[R], \f[B]\[en]warn\f[R]
|
||||
Like \f[B]-s\f[R] and \f[B]\[en]standard\f[R], except that warnings (and
|
||||
\f[B]-w\f[R], \f[B]--warn\f[R]
|
||||
Like \f[B]-s\f[R] and \f[B]--standard\f[R], except that warnings (and
|
||||
not errors) are printed for non-standard extensions and execution
|
||||
continues normally.
|
||||
.RS
|
||||
@ -216,7 +215,7 @@ continues normally.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]\[en]expression\f[R]=\f[I]expr\f[R]
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]--expression\f[R]=\f[I]expr\f[R]
|
||||
Evaluates \f[I]expr\f[R].
|
||||
If multiple expressions are given, they are evaluated in order.
|
||||
If files are given as well (see below), the expressions and files are
|
||||
@ -229,17 +228,17 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, bc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R], whether on the command-line or in
|
||||
\f[B]BC_ENV_ARGS\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]\[en]file\f[R]=\f[I]file\f[R]
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]--file\f[R]=\f[I]file\f[R]
|
||||
Reads in \f[I]file\f[R] and evaluates it, line by line, as though it
|
||||
were read through \f[B]stdin\f[R].
|
||||
If expressions are also given (see above), the expressions are evaluated
|
||||
@ -250,9 +249,9 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, bc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
@ -317,8 +316,8 @@ constant numbers.
|
||||
It is the \[lq]input\[rq] base, or the number base used for interpreting
|
||||
input numbers.
|
||||
\f[B]ibase\f[R] is initially \f[B]10\f[R].
|
||||
If the \f[B]-s\f[R] (\f[B]\[en]standard\f[R]) and \f[B]-w\f[R]
|
||||
(\f[B]\[en]warn\f[R]) flags were not given on the command line, the max
|
||||
If the \f[B]-s\f[R] (\f[B]--standard\f[R]) and \f[B]-w\f[R]
|
||||
(\f[B]--warn\f[R]) flags were not given on the command line, the max
|
||||
allowable value for \f[B]ibase\f[R] is \f[B]36\f[R].
|
||||
Otherwise, it is \f[B]16\f[R].
|
||||
The min allowable value for \f[B]ibase\f[R] is \f[B]2\f[R].
|
||||
@ -577,7 +576,7 @@ The following arithmetic and logical operators can be used.
|
||||
They are listed in order of decreasing precedence.
|
||||
Operators in the same group have the same precedence.
|
||||
.TP
|
||||
\f[B]++\f[R] \f[B]\[en]\f[R]
|
||||
\f[B]++\f[R] \f[B]--\f[R]
|
||||
Type: Prefix and Postfix
|
||||
.RS
|
||||
.PP
|
||||
@ -687,7 +686,7 @@ Description: \f[B]boolean or\f[R]
|
||||
.PP
|
||||
The operators will be described in more detail below.
|
||||
.TP
|
||||
\f[B]++\f[R] \f[B]\[en]\f[R]
|
||||
\f[B]++\f[R] \f[B]--\f[R]
|
||||
The prefix and postfix \f[B]increment\f[R] and \f[B]decrement\f[R]
|
||||
operators behave exactly like they would in C.
|
||||
They require a named expression (see the \f[I]Named Expressions\f[R]
|
||||
@ -1133,7 +1132,7 @@ This is a \f[B]non-portable extension\f[R].
|
||||
.PP
|
||||
All of the functions below, including the functions in the extended math
|
||||
library (see the \f[I]Extended Library\f[R] subsection below), are
|
||||
available when the \f[B]-l\f[R] or \f[B]\[en]mathlib\f[R] command-line
|
||||
available when the \f[B]-l\f[R] or \f[B]--mathlib\f[R] command-line
|
||||
flags are given, except that the extended math library is not available
|
||||
when the \f[B]-s\f[R] option, the \f[B]-w\f[R] option, or equivalents
|
||||
are given.
|
||||
@ -1194,7 +1193,7 @@ Functions\f[R] subsection below).
|
||||
.SS Extended Library
|
||||
.PP
|
||||
The extended library is \f[I]not\f[R] loaded when the
|
||||
\f[B]-s\f[R]/\f[B]\[en]standard\f[R] or \f[B]-w\f[R]/\f[B]\[en]warn\f[R]
|
||||
\f[B]-s\f[R]/\f[B]--standard\f[R] or \f[B]-w\f[R]/\f[B]--warn\f[R]
|
||||
options are given since they are not part of the library defined by the
|
||||
standard (https://pubs.opengroup.org/onlinepubs/9699919799/utilities/bc.html).
|
||||
.PP
|
||||
@ -1952,11 +1951,11 @@ interactive mode (see the \f[B]INTERACTIVE MODE\f[R] section), since
|
||||
bc(1) resets its state (see the \f[B]RESET\f[R] section) and accepts
|
||||
more input when one of those errors occurs in interactive mode.
|
||||
This is also the case when interactive mode is forced by the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.PP
|
||||
These exit statuses allow bc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.SH INTERACTIVE MODE
|
||||
.PP
|
||||
Per the
|
||||
@ -1964,7 +1963,7 @@ standard (https://pubs.opengroup.org/onlinepubs/9699919799/utilities/bc.html),
|
||||
bc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both \f[B]stdin\f[R]
|
||||
and \f[B]stdout\f[R] are hooked to a terminal, but the \f[B]-i\f[R] flag
|
||||
and \f[B]\[en]interactive\f[R] option can turn it on in other cases.
|
||||
and \f[B]--interactive\f[R] option can turn it on in other cases.
|
||||
.PP
|
||||
In interactive mode, bc(1) attempts to recover from errors (see the
|
||||
\f[B]RESET\f[R] section), and in normal execution, flushes
|
||||
|
||||
@ -34,8 +34,7 @@ bc - arbitrary-precision decimal arithmetic language and calculator
|
||||
|
||||
# SYNOPSIS
|
||||
|
||||
**bc** [**-ghilPqsvVw**] [**--global-stacks**] [**--help**] [**--interactive**] [**--mathlib**] [**--no-prompt**] [**--quiet**] [**--standard**] [**--warn**] [**--version**] [**-e** *expr*] [**--expression**=*expr*...] [**-f** *file*...] [**-file**=*file*...]
|
||||
[*file*...]
|
||||
**bc** [**-ghilPqsvVw**] [**-\-global-stacks**] [**-\-help**] [**-\-interactive**] [**-\-mathlib**] [**-\-no-prompt**] [**-\-quiet**] [**-\-standard**] [**-\-warn**] [**-\-version**] [**-e** *expr*] [**-\-expression**=*expr*...] [**-f** *file*...] [**-\-file**=*file*...] [*file*...]
|
||||
|
||||
# DESCRIPTION
|
||||
|
||||
@ -55,7 +54,7 @@ other implementations.
|
||||
|
||||
The following are the options that bc(1) accepts.
|
||||
|
||||
**-g**, **--global-stacks**
|
||||
**-g**, **-\-global-stacks**
|
||||
|
||||
: Turns the globals **ibase**, **obase**, **scale**, and **seed** into stacks.
|
||||
|
||||
@ -123,17 +122,17 @@ The following are the options that bc(1) accepts.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-h**, **--help**
|
||||
**-h**, **-\-help**
|
||||
|
||||
: Prints a usage message and quits.
|
||||
|
||||
**-i**, **--interactive**
|
||||
**-i**, **-\-interactive**
|
||||
|
||||
: Forces interactive mode. (See the **INTERACTIVE MODE** section.)
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-l**, **--mathlib**
|
||||
**-l**, **-\-mathlib**
|
||||
|
||||
: Sets **scale** (see the **SYNTAX** section) to **20** and loads the included
|
||||
math library and the extended math library before running any code,
|
||||
@ -141,42 +140,42 @@ The following are the options that bc(1) accepts.
|
||||
|
||||
To learn what is in the libraries, see the **LIBRARY** section.
|
||||
|
||||
**-P**, **--no-prompt**
|
||||
**-P**, **-\-no-prompt**
|
||||
|
||||
: This option is a no-op.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-q**, **--quiet**
|
||||
**-q**, **-\-quiet**
|
||||
|
||||
: This option is for compatibility with the [GNU bc(1)][2]; it is a no-op.
|
||||
Without this option, GNU bc(1) prints a copyright header. This bc(1) only
|
||||
prints the copyright header if one or more of the **-v**, **-V**, or
|
||||
**--version** options are given.
|
||||
**-\-version** options are given.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-s**, **--standard**
|
||||
**-s**, **-\-standard**
|
||||
|
||||
: Process exactly the language defined by the [standard][1] and error if any
|
||||
extensions are used.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-v**, **-V**, **--version**
|
||||
**-v**, **-V**, **-\-version**
|
||||
|
||||
: Print the version information (copyright header) and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-w**, **--warn**
|
||||
**-w**, **-\-warn**
|
||||
|
||||
: Like **-s** and **--standard**, except that warnings (and not errors) are
|
||||
: Like **-s** and **-\-standard**, except that warnings (and not errors) are
|
||||
printed for non-standard extensions and execution continues normally.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-e** *expr*, **--expression**=*expr*
|
||||
**-e** *expr*, **-\-expression**=*expr*
|
||||
|
||||
: Evaluates *expr*. If multiple expressions are given, they are evaluated in
|
||||
order. If files are given as well (see below), the expressions and files are
|
||||
@ -186,14 +185,14 @@ The following are the options that bc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**, whether on the
|
||||
as an argument at least once to **-f** or **-\-file**, whether on the
|
||||
command-line or in **BC_ENV_ARGS**. However, if any other **-e**,
|
||||
**--expression**, **-f**, or **--file** arguments are given after **-f-** or
|
||||
equivalent is given, bc(1) will give a fatal error and exit.
|
||||
**-\-expression**, **-f**, or **-\-file** arguments are given after **-f-**
|
||||
or equivalent is given, bc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-f** *file*, **--file**=*file*
|
||||
**-f** *file*, **-\-file**=*file*
|
||||
|
||||
: Reads in *file* and evaluates it, line by line, as though it were read
|
||||
through **stdin**. If expressions are also given (see above), the
|
||||
@ -202,8 +201,8 @@ The following are the options that bc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**. However, if any other
|
||||
**-e**, **--expression**, **-f**, or **--file** arguments are given after
|
||||
as an argument at least once to **-f** or **-\-file**. However, if any other
|
||||
**-e**, **-\-expression**, **-f**, or **-\-file** arguments are given after
|
||||
**-f-** or equivalent is given, bc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
@ -258,8 +257,8 @@ Identifiers with more than one character (letter) are a
|
||||
|
||||
**ibase** is a global variable determining how to interpret constant numbers. It
|
||||
is the "input" base, or the number base used for interpreting input numbers.
|
||||
**ibase** is initially **10**. If the **-s** (**--standard**) and **-w**
|
||||
(**--warn**) flags were not given on the command line, the max allowable value
|
||||
**ibase** is initially **10**. If the **-s** (**-\-standard**) and **-w**
|
||||
(**-\-warn**) flags were not given on the command line, the max allowable value
|
||||
for **ibase** is **36**. Otherwise, it is **16**. The min allowable value for
|
||||
**ibase** is **2**. The max allowable value for **ibase** can be queried in
|
||||
bc(1) programs with the **maxibase()** built-in function.
|
||||
@ -449,7 +448,7 @@ The following arithmetic and logical operators can be used. They are listed in
|
||||
order of decreasing precedence. Operators in the same group have the same
|
||||
precedence.
|
||||
|
||||
**++** **--**
|
||||
**++** **-\-**
|
||||
|
||||
: Type: Prefix and Postfix
|
||||
|
||||
@ -547,7 +546,7 @@ precedence.
|
||||
|
||||
The operators will be described in more detail below.
|
||||
|
||||
**++** **--**
|
||||
**++** **-\-**
|
||||
|
||||
: The prefix and postfix **increment** and **decrement** operators behave
|
||||
exactly like they would in C. They require a named expression (see the
|
||||
@ -878,7 +877,7 @@ This is a **non-portable extension**.
|
||||
|
||||
All of the functions below, including the functions in the extended math
|
||||
library (see the *Extended Library* subsection below), are available when the
|
||||
**-l** or **--mathlib** command-line flags are given, except that the extended
|
||||
**-l** or **-\-mathlib** command-line flags are given, except that the extended
|
||||
math library is not available when the **-s** option, the **-w** option, or
|
||||
equivalents are given.
|
||||
|
||||
@ -930,8 +929,8 @@ The [standard][1] defines the following functions for the math library:
|
||||
|
||||
## Extended Library
|
||||
|
||||
The extended library is *not* loaded when the **-s**/**--standard** or
|
||||
**-w**/**--warn** options are given since they are not part of the library
|
||||
The extended library is *not* loaded when the **-s**/**-\-standard** or
|
||||
**-w**/**-\-warn** options are given since they are not part of the library
|
||||
defined by the [standard][1].
|
||||
|
||||
The extended library is a **non-portable extension**.
|
||||
@ -1599,17 +1598,17 @@ The other statuses will only be returned when bc(1) is not in interactive mode
|
||||
(see the **INTERACTIVE MODE** section), since bc(1) resets its state (see the
|
||||
**RESET** section) and accepts more input when one of those errors occurs in
|
||||
interactive mode. This is also the case when interactive mode is forced by the
|
||||
**-i** flag or **--interactive** option.
|
||||
**-i** flag or **-\-interactive** option.
|
||||
|
||||
These exit statuses allow bc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the **-i** flag or
|
||||
**--interactive** option.
|
||||
**-\-interactive** option.
|
||||
|
||||
# INTERACTIVE MODE
|
||||
|
||||
Per the [standard][1], bc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both **stdin** and **stdout**
|
||||
are hooked to a terminal, but the **-i** flag and **--interactive** option can
|
||||
are hooked to a terminal, but the **-i** flag and **-\-interactive** option can
|
||||
turn it on in other cases.
|
||||
|
||||
In interactive mode, bc(1) attempts to recover from errors (see the **RESET**
|
||||
|
||||
@ -25,7 +25,7 @@
|
||||
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
.\" POSSIBILITY OF SUCH DAMAGE.
|
||||
.\"
|
||||
.TH "BCL" "3" "February 2021" "Gavin D. Howard" "Libraries Manual"
|
||||
.TH "BCL" "3" "March 2021" "Gavin D. Howard" "Libraries Manual"
|
||||
.SH NAME
|
||||
.PP
|
||||
bcl - library of arbitrary precision decimal arithmetic
|
||||
|
||||
@ -34,7 +34,7 @@ dc - arbitrary-precision decimal reverse-Polish notation calculator
|
||||
|
||||
# SYNOPSIS
|
||||
|
||||
**dc** [**-hiPvVx**] [**--version**] [**--help**] [**--interactive**] [**--no-prompt**] [**--extended-register**] [**-e** *expr*] [**--expression**=*expr*...] [**-f** *file*...] [**-file**=*file*...] [*file*...]
|
||||
**dc** [**-hiPvVx**] [**-\-version**] [**-\-help**] [**-\-interactive**] [**-\-no-prompt**] [**-\-extended-register**] [**-e** *expr*] [**-\-expression**=*expr*...] [**-f** *file*...] [**-\-file**=*file*...] [*file*...]
|
||||
|
||||
# DESCRIPTION
|
||||
|
||||
@ -43,11 +43,11 @@ notation) to store numbers and results of computations. Arithmetic operations
|
||||
pop arguments off of the stack and push the results.
|
||||
|
||||
If no files are given on the command-line as extra arguments (i.e., not as
|
||||
**-f** or **--file** arguments), then dc(1) reads from **stdin**. Otherwise,
|
||||
**-f** or **-\-file** arguments), then dc(1) reads from **stdin**. Otherwise,
|
||||
those files are processed, and dc(1) will then exit.
|
||||
|
||||
This is different from the dc(1) on OpenBSD and possibly other dc(1)
|
||||
implementations, where **-e** (**--expression**) and **-f** (**--file**)
|
||||
implementations, where **-e** (**-\-expression**) and **-f** (**-\-file**)
|
||||
arguments cause dc(1) to execute them and exit. The reason for this is that this
|
||||
dc(1) allows users to set arguments in the environment variable **DC_ENV_ARGS**
|
||||
(see the **ENVIRONMENT VARIABLES** section). Any expressions given on the
|
||||
@ -64,21 +64,21 @@ as the last command-line argument or define the environment variable
|
||||
|
||||
The following are the options that dc(1) accepts.
|
||||
|
||||
**-h**, **--help**
|
||||
**-h**, **-\-help**
|
||||
|
||||
: Prints a usage message and quits.
|
||||
|
||||
**-v**, **-V**, **--version**
|
||||
**-v**, **-V**, **-\-version**
|
||||
|
||||
: Print the version information (copyright header) and exit.
|
||||
|
||||
**-i**, **--interactive**
|
||||
**-i**, **-\-interactive**
|
||||
|
||||
: Forces interactive mode. (See the **INTERACTIVE MODE** section.)
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-P**, **--no-prompt**
|
||||
**-P**, **-\-no-prompt**
|
||||
|
||||
{{ A E H N EH EN HN EHN }}
|
||||
: Disables the prompt in TTY mode. (The prompt is only enabled in TTY mode.
|
||||
@ -92,14 +92,14 @@ The following are the options that dc(1) accepts.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-x** **--extended-register**
|
||||
**-x** **-\-extended-register**
|
||||
|
||||
: Enables extended register mode. See the *Extended Register Mode* subsection
|
||||
of the **REGISTERS** section for more information.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-e** *expr*, **--expression**=*expr*
|
||||
**-e** *expr*, **-\-expression**=*expr*
|
||||
|
||||
: Evaluates *expr*. If multiple expressions are given, they are evaluated in
|
||||
order. If files are given as well (see below), the expressions and files are
|
||||
@ -109,14 +109,14 @@ The following are the options that dc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**, whether on the
|
||||
as an argument at least once to **-f** or **-\-file**, whether on the
|
||||
command-line or in **DC_ENV_ARGS**. However, if any other **-e**,
|
||||
**--expression**, **-f**, or **--file** arguments are given after **-f-** or
|
||||
equivalent is given, dc(1) will give a fatal error and exit.
|
||||
**-\-expression**, **-f**, or **-\-file** arguments are given after **-f-**
|
||||
or equivalent is given, dc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-f** *file*, **--file**=*file*
|
||||
**-f** *file*, **-\-file**=*file*
|
||||
|
||||
: Reads in *file* and evaluates it, line by line, as though it were read
|
||||
through **stdin**. If expressions are also given (see above), the
|
||||
@ -125,8 +125,8 @@ The following are the options that dc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**. However, if any other
|
||||
**-e**, **--expression**, **-f**, or **--file** arguments are given after
|
||||
as an argument at least once to **-f** or **-\-file**. However, if any other
|
||||
**-e**, **-\-expression**, **-f**, or **-\-file** arguments are given after
|
||||
**-f-** or equivalent is given, dc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
@ -947,7 +947,7 @@ follows any command that needs a register name. The only exception is a newline
|
||||
Unlike most other dc(1) implentations, this dc(1) provides nearly unlimited
|
||||
amounts of registers, if extended register mode is enabled.
|
||||
|
||||
If extended register mode is enabled (**-x** or **--extended-register**
|
||||
If extended register mode is enabled (**-x** or **-\-extended-register**
|
||||
command-line arguments are given), then normal single character registers are
|
||||
used *unless* the character immediately following a command that needs a
|
||||
register name is a space (according to **isspace()**) and not a newline
|
||||
@ -1168,17 +1168,17 @@ The other statuses will only be returned when dc(1) is not in interactive mode
|
||||
(see the **INTERACTIVE MODE** section), since dc(1) resets its state (see the
|
||||
**RESET** section) and accepts more input when one of those errors occurs in
|
||||
interactive mode. This is also the case when interactive mode is forced by the
|
||||
**-i** flag or **--interactive** option.
|
||||
**-i** flag or **-\-interactive** option.
|
||||
|
||||
These exit statuses allow dc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the **-i** flag or
|
||||
**--interactive** option.
|
||||
**-\-interactive** option.
|
||||
|
||||
# INTERACTIVE MODE
|
||||
|
||||
Like bc(1), dc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both **stdin** and **stdout**
|
||||
are hooked to a terminal, but the **-i** flag and **--interactive** option can
|
||||
are hooked to a terminal, but the **-i** flag and **-\-interactive** option can
|
||||
turn it on in other cases.
|
||||
|
||||
In interactive mode, dc(1) attempts to recover from errors (see the **RESET**
|
||||
|
||||
@ -25,18 +25,17 @@
|
||||
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
.\" POSSIBILITY OF SUCH DAMAGE.
|
||||
.\"
|
||||
.TH "DC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.TH "DC" "1" "March 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.SH Name
|
||||
.PP
|
||||
dc - arbitrary-precision decimal reverse-Polish notation calculator
|
||||
.SH SYNOPSIS
|
||||
.PP
|
||||
\f[B]dc\f[R] [\f[B]-hiPvVx\f[R]] [\f[B]\[en]version\f[R]]
|
||||
[\f[B]\[en]help\f[R]] [\f[B]\[en]interactive\f[R]]
|
||||
[\f[B]\[en]no-prompt\f[R]] [\f[B]\[en]extended-register\f[R]]
|
||||
[\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]\[en]expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]-file\f[R]=\f[I]file\f[R]\&...]
|
||||
\f[B]dc\f[R] [\f[B]-hiPvVx\f[R]] [\f[B]--version\f[R]]
|
||||
[\f[B]--help\f[R]] [\f[B]--interactive\f[R]] [\f[B]--no-prompt\f[R]]
|
||||
[\f[B]--extended-register\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]--expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]--file\f[R]=\f[I]file\f[R]\&...]
|
||||
[\f[I]file\f[R]\&...]
|
||||
.SH DESCRIPTION
|
||||
.PP
|
||||
@ -47,13 +46,13 @@ Arithmetic operations pop arguments off of the stack and push the
|
||||
results.
|
||||
.PP
|
||||
If no files are given on the command-line as extra arguments (i.e., not
|
||||
as \f[B]-f\f[R] or \f[B]\[en]file\f[R] arguments), then dc(1) reads from
|
||||
as \f[B]-f\f[R] or \f[B]--file\f[R] arguments), then dc(1) reads from
|
||||
\f[B]stdin\f[R].
|
||||
Otherwise, those files are processed, and dc(1) will then exit.
|
||||
.PP
|
||||
This is different from the dc(1) on OpenBSD and possibly other dc(1)
|
||||
implementations, where \f[B]-e\f[R] (\f[B]\[en]expression\f[R]) and
|
||||
\f[B]-f\f[R] (\f[B]\[en]file\f[R]) arguments cause dc(1) to execute them
|
||||
implementations, where \f[B]-e\f[R] (\f[B]--expression\f[R]) and
|
||||
\f[B]-f\f[R] (\f[B]--file\f[R]) arguments cause dc(1) to execute them
|
||||
and exit.
|
||||
The reason for this is that this dc(1) allows users to set arguments in
|
||||
the environment variable \f[B]DC_ENV_ARGS\f[R] (see the \f[B]ENVIRONMENT
|
||||
@ -72,13 +71,13 @@ argument or define the environment variable \f[B]DC_EXPR_EXIT\f[R].
|
||||
.PP
|
||||
The following are the options that dc(1) accepts.
|
||||
.TP
|
||||
\f[B]-h\f[R], \f[B]\[en]help\f[R]
|
||||
\f[B]-h\f[R], \f[B]--help\f[R]
|
||||
Prints a usage message and quits.
|
||||
.TP
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]\[en]version\f[R]
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]--version\f[R]
|
||||
Print the version information (copyright header) and exit.
|
||||
.TP
|
||||
\f[B]-i\f[R], \f[B]\[en]interactive\f[R]
|
||||
\f[B]-i\f[R], \f[B]--interactive\f[R]
|
||||
Forces interactive mode.
|
||||
(See the \f[B]INTERACTIVE MODE\f[R] section.)
|
||||
.RS
|
||||
@ -86,7 +85,7 @@ Forces interactive mode.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-P\f[R], \f[B]\[en]no-prompt\f[R]
|
||||
\f[B]-P\f[R], \f[B]--no-prompt\f[R]
|
||||
Disables the prompt in TTY mode.
|
||||
(The prompt is only enabled in TTY mode.
|
||||
See the \f[B]TTY MODE\f[R] section) This is mostly for those users that
|
||||
@ -98,7 +97,7 @@ Most of those users would want to put this option in
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-x\f[R] \f[B]\[en]extended-register\f[R]
|
||||
\f[B]-x\f[R] \f[B]--extended-register\f[R]
|
||||
Enables extended register mode.
|
||||
See the \f[I]Extended Register Mode\f[R] subsection of the
|
||||
\f[B]REGISTERS\f[R] section for more information.
|
||||
@ -107,7 +106,7 @@ See the \f[I]Extended Register Mode\f[R] subsection of the
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]\[en]expression\f[R]=\f[I]expr\f[R]
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]--expression\f[R]=\f[I]expr\f[R]
|
||||
Evaluates \f[I]expr\f[R].
|
||||
If multiple expressions are given, they are evaluated in order.
|
||||
If files are given as well (see below), the expressions and files are
|
||||
@ -120,17 +119,17 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, dc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R], whether on the command-line or in
|
||||
\f[B]DC_ENV_ARGS\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]\[en]file\f[R]=\f[I]file\f[R]
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]--file\f[R]=\f[I]file\f[R]
|
||||
Reads in \f[I]file\f[R] and evaluates it, line by line, as though it
|
||||
were read through \f[B]stdin\f[R].
|
||||
If expressions are also given (see above), the expressions are evaluated
|
||||
@ -141,9 +140,9 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, dc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
@ -1037,7 +1036,7 @@ Unlike most other dc(1) implentations, this dc(1) provides nearly
|
||||
unlimited amounts of registers, if extended register mode is enabled.
|
||||
.PP
|
||||
If extended register mode is enabled (\f[B]-x\f[R] or
|
||||
\f[B]\[en]extended-register\f[R] command-line arguments are given), then
|
||||
\f[B]--extended-register\f[R] command-line arguments are given), then
|
||||
normal single character registers are used \f[I]unless\f[R] the
|
||||
character immediately following a command that needs a register name is
|
||||
a space (according to \f[B]isspace()\f[R]) and not a newline
|
||||
@ -1260,17 +1259,17 @@ interactive mode (see the \f[B]INTERACTIVE MODE\f[R] section), since
|
||||
dc(1) resets its state (see the \f[B]RESET\f[R] section) and accepts
|
||||
more input when one of those errors occurs in interactive mode.
|
||||
This is also the case when interactive mode is forced by the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.PP
|
||||
These exit statuses allow dc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.SH INTERACTIVE MODE
|
||||
.PP
|
||||
Like bc(1), dc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both \f[B]stdin\f[R]
|
||||
and \f[B]stdout\f[R] are hooked to a terminal, but the \f[B]-i\f[R] flag
|
||||
and \f[B]\[en]interactive\f[R] option can turn it on in other cases.
|
||||
and \f[B]--interactive\f[R] option can turn it on in other cases.
|
||||
.PP
|
||||
In interactive mode, dc(1) attempts to recover from errors (see the
|
||||
\f[B]RESET\f[R] section), and in normal execution, flushes
|
||||
|
||||
@ -34,7 +34,7 @@ dc - arbitrary-precision decimal reverse-Polish notation calculator
|
||||
|
||||
# SYNOPSIS
|
||||
|
||||
**dc** [**-hiPvVx**] [**--version**] [**--help**] [**--interactive**] [**--no-prompt**] [**--extended-register**] [**-e** *expr*] [**--expression**=*expr*...] [**-f** *file*...] [**-file**=*file*...] [*file*...]
|
||||
**dc** [**-hiPvVx**] [**-\-version**] [**-\-help**] [**-\-interactive**] [**-\-no-prompt**] [**-\-extended-register**] [**-e** *expr*] [**-\-expression**=*expr*...] [**-f** *file*...] [**-\-file**=*file*...] [*file*...]
|
||||
|
||||
# DESCRIPTION
|
||||
|
||||
@ -43,11 +43,11 @@ notation) to store numbers and results of computations. Arithmetic operations
|
||||
pop arguments off of the stack and push the results.
|
||||
|
||||
If no files are given on the command-line as extra arguments (i.e., not as
|
||||
**-f** or **--file** arguments), then dc(1) reads from **stdin**. Otherwise,
|
||||
**-f** or **-\-file** arguments), then dc(1) reads from **stdin**. Otherwise,
|
||||
those files are processed, and dc(1) will then exit.
|
||||
|
||||
This is different from the dc(1) on OpenBSD and possibly other dc(1)
|
||||
implementations, where **-e** (**--expression**) and **-f** (**--file**)
|
||||
implementations, where **-e** (**-\-expression**) and **-f** (**-\-file**)
|
||||
arguments cause dc(1) to execute them and exit. The reason for this is that this
|
||||
dc(1) allows users to set arguments in the environment variable **DC_ENV_ARGS**
|
||||
(see the **ENVIRONMENT VARIABLES** section). Any expressions given on the
|
||||
@ -64,21 +64,21 @@ as the last command-line argument or define the environment variable
|
||||
|
||||
The following are the options that dc(1) accepts.
|
||||
|
||||
**-h**, **--help**
|
||||
**-h**, **-\-help**
|
||||
|
||||
: Prints a usage message and quits.
|
||||
|
||||
**-v**, **-V**, **--version**
|
||||
**-v**, **-V**, **-\-version**
|
||||
|
||||
: Print the version information (copyright header) and exit.
|
||||
|
||||
**-i**, **--interactive**
|
||||
**-i**, **-\-interactive**
|
||||
|
||||
: Forces interactive mode. (See the **INTERACTIVE MODE** section.)
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-P**, **--no-prompt**
|
||||
**-P**, **-\-no-prompt**
|
||||
|
||||
: Disables the prompt in TTY mode. (The prompt is only enabled in TTY mode.
|
||||
See the **TTY MODE** section) This is mostly for those users that do not
|
||||
@ -87,14 +87,14 @@ The following are the options that dc(1) accepts.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-x** **--extended-register**
|
||||
**-x** **-\-extended-register**
|
||||
|
||||
: Enables extended register mode. See the *Extended Register Mode* subsection
|
||||
of the **REGISTERS** section for more information.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-e** *expr*, **--expression**=*expr*
|
||||
**-e** *expr*, **-\-expression**=*expr*
|
||||
|
||||
: Evaluates *expr*. If multiple expressions are given, they are evaluated in
|
||||
order. If files are given as well (see below), the expressions and files are
|
||||
@ -104,14 +104,14 @@ The following are the options that dc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**, whether on the
|
||||
as an argument at least once to **-f** or **-\-file**, whether on the
|
||||
command-line or in **DC_ENV_ARGS**. However, if any other **-e**,
|
||||
**--expression**, **-f**, or **--file** arguments are given after **-f-** or
|
||||
equivalent is given, dc(1) will give a fatal error and exit.
|
||||
**-\-expression**, **-f**, or **-\-file** arguments are given after **-f-**
|
||||
or equivalent is given, dc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-f** *file*, **--file**=*file*
|
||||
**-f** *file*, **-\-file**=*file*
|
||||
|
||||
: Reads in *file* and evaluates it, line by line, as though it were read
|
||||
through **stdin**. If expressions are also given (see above), the
|
||||
@ -120,8 +120,8 @@ The following are the options that dc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**. However, if any other
|
||||
**-e**, **--expression**, **-f**, or **--file** arguments are given after
|
||||
as an argument at least once to **-f** or **-\-file**. However, if any other
|
||||
**-e**, **-\-expression**, **-f**, or **-\-file** arguments are given after
|
||||
**-f-** or equivalent is given, dc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
@ -909,7 +909,7 @@ follows any command that needs a register name. The only exception is a newline
|
||||
Unlike most other dc(1) implentations, this dc(1) provides nearly unlimited
|
||||
amounts of registers, if extended register mode is enabled.
|
||||
|
||||
If extended register mode is enabled (**-x** or **--extended-register**
|
||||
If extended register mode is enabled (**-x** or **-\-extended-register**
|
||||
command-line arguments are given), then normal single character registers are
|
||||
used *unless* the character immediately following a command that needs a
|
||||
register name is a space (according to **isspace()**) and not a newline
|
||||
@ -1118,17 +1118,17 @@ The other statuses will only be returned when dc(1) is not in interactive mode
|
||||
(see the **INTERACTIVE MODE** section), since dc(1) resets its state (see the
|
||||
**RESET** section) and accepts more input when one of those errors occurs in
|
||||
interactive mode. This is also the case when interactive mode is forced by the
|
||||
**-i** flag or **--interactive** option.
|
||||
**-i** flag or **-\-interactive** option.
|
||||
|
||||
These exit statuses allow dc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the **-i** flag or
|
||||
**--interactive** option.
|
||||
**-\-interactive** option.
|
||||
|
||||
# INTERACTIVE MODE
|
||||
|
||||
Like bc(1), dc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both **stdin** and **stdout**
|
||||
are hooked to a terminal, but the **-i** flag and **--interactive** option can
|
||||
are hooked to a terminal, but the **-i** flag and **-\-interactive** option can
|
||||
turn it on in other cases.
|
||||
|
||||
In interactive mode, dc(1) attempts to recover from errors (see the **RESET**
|
||||
|
||||
@ -25,18 +25,17 @@
|
||||
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
.\" POSSIBILITY OF SUCH DAMAGE.
|
||||
.\"
|
||||
.TH "DC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.TH "DC" "1" "March 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.SH Name
|
||||
.PP
|
||||
dc - arbitrary-precision decimal reverse-Polish notation calculator
|
||||
.SH SYNOPSIS
|
||||
.PP
|
||||
\f[B]dc\f[R] [\f[B]-hiPvVx\f[R]] [\f[B]\[en]version\f[R]]
|
||||
[\f[B]\[en]help\f[R]] [\f[B]\[en]interactive\f[R]]
|
||||
[\f[B]\[en]no-prompt\f[R]] [\f[B]\[en]extended-register\f[R]]
|
||||
[\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]\[en]expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]-file\f[R]=\f[I]file\f[R]\&...]
|
||||
\f[B]dc\f[R] [\f[B]-hiPvVx\f[R]] [\f[B]--version\f[R]]
|
||||
[\f[B]--help\f[R]] [\f[B]--interactive\f[R]] [\f[B]--no-prompt\f[R]]
|
||||
[\f[B]--extended-register\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]--expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]--file\f[R]=\f[I]file\f[R]\&...]
|
||||
[\f[I]file\f[R]\&...]
|
||||
.SH DESCRIPTION
|
||||
.PP
|
||||
@ -47,13 +46,13 @@ Arithmetic operations pop arguments off of the stack and push the
|
||||
results.
|
||||
.PP
|
||||
If no files are given on the command-line as extra arguments (i.e., not
|
||||
as \f[B]-f\f[R] or \f[B]\[en]file\f[R] arguments), then dc(1) reads from
|
||||
as \f[B]-f\f[R] or \f[B]--file\f[R] arguments), then dc(1) reads from
|
||||
\f[B]stdin\f[R].
|
||||
Otherwise, those files are processed, and dc(1) will then exit.
|
||||
.PP
|
||||
This is different from the dc(1) on OpenBSD and possibly other dc(1)
|
||||
implementations, where \f[B]-e\f[R] (\f[B]\[en]expression\f[R]) and
|
||||
\f[B]-f\f[R] (\f[B]\[en]file\f[R]) arguments cause dc(1) to execute them
|
||||
implementations, where \f[B]-e\f[R] (\f[B]--expression\f[R]) and
|
||||
\f[B]-f\f[R] (\f[B]--file\f[R]) arguments cause dc(1) to execute them
|
||||
and exit.
|
||||
The reason for this is that this dc(1) allows users to set arguments in
|
||||
the environment variable \f[B]DC_ENV_ARGS\f[R] (see the \f[B]ENVIRONMENT
|
||||
@ -72,13 +71,13 @@ argument or define the environment variable \f[B]DC_EXPR_EXIT\f[R].
|
||||
.PP
|
||||
The following are the options that dc(1) accepts.
|
||||
.TP
|
||||
\f[B]-h\f[R], \f[B]\[en]help\f[R]
|
||||
\f[B]-h\f[R], \f[B]--help\f[R]
|
||||
Prints a usage message and quits.
|
||||
.TP
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]\[en]version\f[R]
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]--version\f[R]
|
||||
Print the version information (copyright header) and exit.
|
||||
.TP
|
||||
\f[B]-i\f[R], \f[B]\[en]interactive\f[R]
|
||||
\f[B]-i\f[R], \f[B]--interactive\f[R]
|
||||
Forces interactive mode.
|
||||
(See the \f[B]INTERACTIVE MODE\f[R] section.)
|
||||
.RS
|
||||
@ -86,7 +85,7 @@ Forces interactive mode.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-P\f[R], \f[B]\[en]no-prompt\f[R]
|
||||
\f[B]-P\f[R], \f[B]--no-prompt\f[R]
|
||||
Disables the prompt in TTY mode.
|
||||
(The prompt is only enabled in TTY mode.
|
||||
See the \f[B]TTY MODE\f[R] section) This is mostly for those users that
|
||||
@ -98,7 +97,7 @@ Most of those users would want to put this option in
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-x\f[R] \f[B]\[en]extended-register\f[R]
|
||||
\f[B]-x\f[R] \f[B]--extended-register\f[R]
|
||||
Enables extended register mode.
|
||||
See the \f[I]Extended Register Mode\f[R] subsection of the
|
||||
\f[B]REGISTERS\f[R] section for more information.
|
||||
@ -107,7 +106,7 @@ See the \f[I]Extended Register Mode\f[R] subsection of the
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]\[en]expression\f[R]=\f[I]expr\f[R]
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]--expression\f[R]=\f[I]expr\f[R]
|
||||
Evaluates \f[I]expr\f[R].
|
||||
If multiple expressions are given, they are evaluated in order.
|
||||
If files are given as well (see below), the expressions and files are
|
||||
@ -120,17 +119,17 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, dc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R], whether on the command-line or in
|
||||
\f[B]DC_ENV_ARGS\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]\[en]file\f[R]=\f[I]file\f[R]
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]--file\f[R]=\f[I]file\f[R]
|
||||
Reads in \f[I]file\f[R] and evaluates it, line by line, as though it
|
||||
were read through \f[B]stdin\f[R].
|
||||
If expressions are also given (see above), the expressions are evaluated
|
||||
@ -141,9 +140,9 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, dc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
@ -837,7 +836,7 @@ Unlike most other dc(1) implentations, this dc(1) provides nearly
|
||||
unlimited amounts of registers, if extended register mode is enabled.
|
||||
.PP
|
||||
If extended register mode is enabled (\f[B]-x\f[R] or
|
||||
\f[B]\[en]extended-register\f[R] command-line arguments are given), then
|
||||
\f[B]--extended-register\f[R] command-line arguments are given), then
|
||||
normal single character registers are used \f[I]unless\f[R] the
|
||||
character immediately following a command that needs a register name is
|
||||
a space (according to \f[B]isspace()\f[R]) and not a newline
|
||||
@ -1052,17 +1051,17 @@ interactive mode (see the \f[B]INTERACTIVE MODE\f[R] section), since
|
||||
dc(1) resets its state (see the \f[B]RESET\f[R] section) and accepts
|
||||
more input when one of those errors occurs in interactive mode.
|
||||
This is also the case when interactive mode is forced by the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.PP
|
||||
These exit statuses allow dc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.SH INTERACTIVE MODE
|
||||
.PP
|
||||
Like bc(1), dc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both \f[B]stdin\f[R]
|
||||
and \f[B]stdout\f[R] are hooked to a terminal, but the \f[B]-i\f[R] flag
|
||||
and \f[B]\[en]interactive\f[R] option can turn it on in other cases.
|
||||
and \f[B]--interactive\f[R] option can turn it on in other cases.
|
||||
.PP
|
||||
In interactive mode, dc(1) attempts to recover from errors (see the
|
||||
\f[B]RESET\f[R] section), and in normal execution, flushes
|
||||
|
||||
@ -34,7 +34,7 @@ dc - arbitrary-precision decimal reverse-Polish notation calculator
|
||||
|
||||
# SYNOPSIS
|
||||
|
||||
**dc** [**-hiPvVx**] [**--version**] [**--help**] [**--interactive**] [**--no-prompt**] [**--extended-register**] [**-e** *expr*] [**--expression**=*expr*...] [**-f** *file*...] [**-file**=*file*...] [*file*...]
|
||||
**dc** [**-hiPvVx**] [**-\-version**] [**-\-help**] [**-\-interactive**] [**-\-no-prompt**] [**-\-extended-register**] [**-e** *expr*] [**-\-expression**=*expr*...] [**-f** *file*...] [**-\-file**=*file*...] [*file*...]
|
||||
|
||||
# DESCRIPTION
|
||||
|
||||
@ -43,11 +43,11 @@ notation) to store numbers and results of computations. Arithmetic operations
|
||||
pop arguments off of the stack and push the results.
|
||||
|
||||
If no files are given on the command-line as extra arguments (i.e., not as
|
||||
**-f** or **--file** arguments), then dc(1) reads from **stdin**. Otherwise,
|
||||
**-f** or **-\-file** arguments), then dc(1) reads from **stdin**. Otherwise,
|
||||
those files are processed, and dc(1) will then exit.
|
||||
|
||||
This is different from the dc(1) on OpenBSD and possibly other dc(1)
|
||||
implementations, where **-e** (**--expression**) and **-f** (**--file**)
|
||||
implementations, where **-e** (**-\-expression**) and **-f** (**-\-file**)
|
||||
arguments cause dc(1) to execute them and exit. The reason for this is that this
|
||||
dc(1) allows users to set arguments in the environment variable **DC_ENV_ARGS**
|
||||
(see the **ENVIRONMENT VARIABLES** section). Any expressions given on the
|
||||
@ -64,21 +64,21 @@ as the last command-line argument or define the environment variable
|
||||
|
||||
The following are the options that dc(1) accepts.
|
||||
|
||||
**-h**, **--help**
|
||||
**-h**, **-\-help**
|
||||
|
||||
: Prints a usage message and quits.
|
||||
|
||||
**-v**, **-V**, **--version**
|
||||
**-v**, **-V**, **-\-version**
|
||||
|
||||
: Print the version information (copyright header) and exit.
|
||||
|
||||
**-i**, **--interactive**
|
||||
**-i**, **-\-interactive**
|
||||
|
||||
: Forces interactive mode. (See the **INTERACTIVE MODE** section.)
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-P**, **--no-prompt**
|
||||
**-P**, **-\-no-prompt**
|
||||
|
||||
: Disables the prompt in TTY mode. (The prompt is only enabled in TTY mode.
|
||||
See the **TTY MODE** section) This is mostly for those users that do not
|
||||
@ -87,14 +87,14 @@ The following are the options that dc(1) accepts.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-x** **--extended-register**
|
||||
**-x** **-\-extended-register**
|
||||
|
||||
: Enables extended register mode. See the *Extended Register Mode* subsection
|
||||
of the **REGISTERS** section for more information.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-e** *expr*, **--expression**=*expr*
|
||||
**-e** *expr*, **-\-expression**=*expr*
|
||||
|
||||
: Evaluates *expr*. If multiple expressions are given, they are evaluated in
|
||||
order. If files are given as well (see below), the expressions and files are
|
||||
@ -104,14 +104,14 @@ The following are the options that dc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**, whether on the
|
||||
as an argument at least once to **-f** or **-\-file**, whether on the
|
||||
command-line or in **DC_ENV_ARGS**. However, if any other **-e**,
|
||||
**--expression**, **-f**, or **--file** arguments are given after **-f-** or
|
||||
equivalent is given, dc(1) will give a fatal error and exit.
|
||||
**-\-expression**, **-f**, or **-\-file** arguments are given after **-f-**
|
||||
or equivalent is given, dc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-f** *file*, **--file**=*file*
|
||||
**-f** *file*, **-\-file**=*file*
|
||||
|
||||
: Reads in *file* and evaluates it, line by line, as though it were read
|
||||
through **stdin**. If expressions are also given (see above), the
|
||||
@ -120,8 +120,8 @@ The following are the options that dc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**. However, if any other
|
||||
**-e**, **--expression**, **-f**, or **--file** arguments are given after
|
||||
as an argument at least once to **-f** or **-\-file**. However, if any other
|
||||
**-e**, **-\-expression**, **-f**, or **-\-file** arguments are given after
|
||||
**-f-** or equivalent is given, dc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
@ -749,7 +749,7 @@ follows any command that needs a register name. The only exception is a newline
|
||||
Unlike most other dc(1) implentations, this dc(1) provides nearly unlimited
|
||||
amounts of registers, if extended register mode is enabled.
|
||||
|
||||
If extended register mode is enabled (**-x** or **--extended-register**
|
||||
If extended register mode is enabled (**-x** or **-\-extended-register**
|
||||
command-line arguments are given), then normal single character registers are
|
||||
used *unless* the character immediately following a command that needs a
|
||||
register name is a space (according to **isspace()**) and not a newline
|
||||
@ -951,17 +951,17 @@ The other statuses will only be returned when dc(1) is not in interactive mode
|
||||
(see the **INTERACTIVE MODE** section), since dc(1) resets its state (see the
|
||||
**RESET** section) and accepts more input when one of those errors occurs in
|
||||
interactive mode. This is also the case when interactive mode is forced by the
|
||||
**-i** flag or **--interactive** option.
|
||||
**-i** flag or **-\-interactive** option.
|
||||
|
||||
These exit statuses allow dc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the **-i** flag or
|
||||
**--interactive** option.
|
||||
**-\-interactive** option.
|
||||
|
||||
# INTERACTIVE MODE
|
||||
|
||||
Like bc(1), dc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both **stdin** and **stdout**
|
||||
are hooked to a terminal, but the **-i** flag and **--interactive** option can
|
||||
are hooked to a terminal, but the **-i** flag and **-\-interactive** option can
|
||||
turn it on in other cases.
|
||||
|
||||
In interactive mode, dc(1) attempts to recover from errors (see the **RESET**
|
||||
|
||||
@ -25,18 +25,17 @@
|
||||
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
.\" POSSIBILITY OF SUCH DAMAGE.
|
||||
.\"
|
||||
.TH "DC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.TH "DC" "1" "March 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.SH Name
|
||||
.PP
|
||||
dc - arbitrary-precision decimal reverse-Polish notation calculator
|
||||
.SH SYNOPSIS
|
||||
.PP
|
||||
\f[B]dc\f[R] [\f[B]-hiPvVx\f[R]] [\f[B]\[en]version\f[R]]
|
||||
[\f[B]\[en]help\f[R]] [\f[B]\[en]interactive\f[R]]
|
||||
[\f[B]\[en]no-prompt\f[R]] [\f[B]\[en]extended-register\f[R]]
|
||||
[\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]\[en]expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]-file\f[R]=\f[I]file\f[R]\&...]
|
||||
\f[B]dc\f[R] [\f[B]-hiPvVx\f[R]] [\f[B]--version\f[R]]
|
||||
[\f[B]--help\f[R]] [\f[B]--interactive\f[R]] [\f[B]--no-prompt\f[R]]
|
||||
[\f[B]--extended-register\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]--expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]--file\f[R]=\f[I]file\f[R]\&...]
|
||||
[\f[I]file\f[R]\&...]
|
||||
.SH DESCRIPTION
|
||||
.PP
|
||||
@ -47,13 +46,13 @@ Arithmetic operations pop arguments off of the stack and push the
|
||||
results.
|
||||
.PP
|
||||
If no files are given on the command-line as extra arguments (i.e., not
|
||||
as \f[B]-f\f[R] or \f[B]\[en]file\f[R] arguments), then dc(1) reads from
|
||||
as \f[B]-f\f[R] or \f[B]--file\f[R] arguments), then dc(1) reads from
|
||||
\f[B]stdin\f[R].
|
||||
Otherwise, those files are processed, and dc(1) will then exit.
|
||||
.PP
|
||||
This is different from the dc(1) on OpenBSD and possibly other dc(1)
|
||||
implementations, where \f[B]-e\f[R] (\f[B]\[en]expression\f[R]) and
|
||||
\f[B]-f\f[R] (\f[B]\[en]file\f[R]) arguments cause dc(1) to execute them
|
||||
implementations, where \f[B]-e\f[R] (\f[B]--expression\f[R]) and
|
||||
\f[B]-f\f[R] (\f[B]--file\f[R]) arguments cause dc(1) to execute them
|
||||
and exit.
|
||||
The reason for this is that this dc(1) allows users to set arguments in
|
||||
the environment variable \f[B]DC_ENV_ARGS\f[R] (see the \f[B]ENVIRONMENT
|
||||
@ -72,13 +71,13 @@ argument or define the environment variable \f[B]DC_EXPR_EXIT\f[R].
|
||||
.PP
|
||||
The following are the options that dc(1) accepts.
|
||||
.TP
|
||||
\f[B]-h\f[R], \f[B]\[en]help\f[R]
|
||||
\f[B]-h\f[R], \f[B]--help\f[R]
|
||||
Prints a usage message and quits.
|
||||
.TP
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]\[en]version\f[R]
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]--version\f[R]
|
||||
Print the version information (copyright header) and exit.
|
||||
.TP
|
||||
\f[B]-i\f[R], \f[B]\[en]interactive\f[R]
|
||||
\f[B]-i\f[R], \f[B]--interactive\f[R]
|
||||
Forces interactive mode.
|
||||
(See the \f[B]INTERACTIVE MODE\f[R] section.)
|
||||
.RS
|
||||
@ -86,7 +85,7 @@ Forces interactive mode.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-P\f[R], \f[B]\[en]no-prompt\f[R]
|
||||
\f[B]-P\f[R], \f[B]--no-prompt\f[R]
|
||||
Disables the prompt in TTY mode.
|
||||
(The prompt is only enabled in TTY mode.
|
||||
See the \f[B]TTY MODE\f[R] section) This is mostly for those users that
|
||||
@ -98,7 +97,7 @@ Most of those users would want to put this option in
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-x\f[R] \f[B]\[en]extended-register\f[R]
|
||||
\f[B]-x\f[R] \f[B]--extended-register\f[R]
|
||||
Enables extended register mode.
|
||||
See the \f[I]Extended Register Mode\f[R] subsection of the
|
||||
\f[B]REGISTERS\f[R] section for more information.
|
||||
@ -107,7 +106,7 @@ See the \f[I]Extended Register Mode\f[R] subsection of the
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]\[en]expression\f[R]=\f[I]expr\f[R]
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]--expression\f[R]=\f[I]expr\f[R]
|
||||
Evaluates \f[I]expr\f[R].
|
||||
If multiple expressions are given, they are evaluated in order.
|
||||
If files are given as well (see below), the expressions and files are
|
||||
@ -120,17 +119,17 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, dc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R], whether on the command-line or in
|
||||
\f[B]DC_ENV_ARGS\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]\[en]file\f[R]=\f[I]file\f[R]
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]--file\f[R]=\f[I]file\f[R]
|
||||
Reads in \f[I]file\f[R] and evaluates it, line by line, as though it
|
||||
were read through \f[B]stdin\f[R].
|
||||
If expressions are also given (see above), the expressions are evaluated
|
||||
@ -141,9 +140,9 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, dc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
@ -837,7 +836,7 @@ Unlike most other dc(1) implentations, this dc(1) provides nearly
|
||||
unlimited amounts of registers, if extended register mode is enabled.
|
||||
.PP
|
||||
If extended register mode is enabled (\f[B]-x\f[R] or
|
||||
\f[B]\[en]extended-register\f[R] command-line arguments are given), then
|
||||
\f[B]--extended-register\f[R] command-line arguments are given), then
|
||||
normal single character registers are used \f[I]unless\f[R] the
|
||||
character immediately following a command that needs a register name is
|
||||
a space (according to \f[B]isspace()\f[R]) and not a newline
|
||||
@ -1052,17 +1051,17 @@ interactive mode (see the \f[B]INTERACTIVE MODE\f[R] section), since
|
||||
dc(1) resets its state (see the \f[B]RESET\f[R] section) and accepts
|
||||
more input when one of those errors occurs in interactive mode.
|
||||
This is also the case when interactive mode is forced by the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.PP
|
||||
These exit statuses allow dc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.SH INTERACTIVE MODE
|
||||
.PP
|
||||
Like bc(1), dc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both \f[B]stdin\f[R]
|
||||
and \f[B]stdout\f[R] are hooked to a terminal, but the \f[B]-i\f[R] flag
|
||||
and \f[B]\[en]interactive\f[R] option can turn it on in other cases.
|
||||
and \f[B]--interactive\f[R] option can turn it on in other cases.
|
||||
.PP
|
||||
In interactive mode, dc(1) attempts to recover from errors (see the
|
||||
\f[B]RESET\f[R] section), and in normal execution, flushes
|
||||
|
||||
@ -34,7 +34,7 @@ dc - arbitrary-precision decimal reverse-Polish notation calculator
|
||||
|
||||
# SYNOPSIS
|
||||
|
||||
**dc** [**-hiPvVx**] [**--version**] [**--help**] [**--interactive**] [**--no-prompt**] [**--extended-register**] [**-e** *expr*] [**--expression**=*expr*...] [**-f** *file*...] [**-file**=*file*...] [*file*...]
|
||||
**dc** [**-hiPvVx**] [**-\-version**] [**-\-help**] [**-\-interactive**] [**-\-no-prompt**] [**-\-extended-register**] [**-e** *expr*] [**-\-expression**=*expr*...] [**-f** *file*...] [**-\-file**=*file*...] [*file*...]
|
||||
|
||||
# DESCRIPTION
|
||||
|
||||
@ -43,11 +43,11 @@ notation) to store numbers and results of computations. Arithmetic operations
|
||||
pop arguments off of the stack and push the results.
|
||||
|
||||
If no files are given on the command-line as extra arguments (i.e., not as
|
||||
**-f** or **--file** arguments), then dc(1) reads from **stdin**. Otherwise,
|
||||
**-f** or **-\-file** arguments), then dc(1) reads from **stdin**. Otherwise,
|
||||
those files are processed, and dc(1) will then exit.
|
||||
|
||||
This is different from the dc(1) on OpenBSD and possibly other dc(1)
|
||||
implementations, where **-e** (**--expression**) and **-f** (**--file**)
|
||||
implementations, where **-e** (**-\-expression**) and **-f** (**-\-file**)
|
||||
arguments cause dc(1) to execute them and exit. The reason for this is that this
|
||||
dc(1) allows users to set arguments in the environment variable **DC_ENV_ARGS**
|
||||
(see the **ENVIRONMENT VARIABLES** section). Any expressions given on the
|
||||
@ -64,21 +64,21 @@ as the last command-line argument or define the environment variable
|
||||
|
||||
The following are the options that dc(1) accepts.
|
||||
|
||||
**-h**, **--help**
|
||||
**-h**, **-\-help**
|
||||
|
||||
: Prints a usage message and quits.
|
||||
|
||||
**-v**, **-V**, **--version**
|
||||
**-v**, **-V**, **-\-version**
|
||||
|
||||
: Print the version information (copyright header) and exit.
|
||||
|
||||
**-i**, **--interactive**
|
||||
**-i**, **-\-interactive**
|
||||
|
||||
: Forces interactive mode. (See the **INTERACTIVE MODE** section.)
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-P**, **--no-prompt**
|
||||
**-P**, **-\-no-prompt**
|
||||
|
||||
: Disables the prompt in TTY mode. (The prompt is only enabled in TTY mode.
|
||||
See the **TTY MODE** section) This is mostly for those users that do not
|
||||
@ -87,14 +87,14 @@ The following are the options that dc(1) accepts.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-x** **--extended-register**
|
||||
**-x** **-\-extended-register**
|
||||
|
||||
: Enables extended register mode. See the *Extended Register Mode* subsection
|
||||
of the **REGISTERS** section for more information.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-e** *expr*, **--expression**=*expr*
|
||||
**-e** *expr*, **-\-expression**=*expr*
|
||||
|
||||
: Evaluates *expr*. If multiple expressions are given, they are evaluated in
|
||||
order. If files are given as well (see below), the expressions and files are
|
||||
@ -104,14 +104,14 @@ The following are the options that dc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**, whether on the
|
||||
as an argument at least once to **-f** or **-\-file**, whether on the
|
||||
command-line or in **DC_ENV_ARGS**. However, if any other **-e**,
|
||||
**--expression**, **-f**, or **--file** arguments are given after **-f-** or
|
||||
equivalent is given, dc(1) will give a fatal error and exit.
|
||||
**-\-expression**, **-f**, or **-\-file** arguments are given after **-f-**
|
||||
or equivalent is given, dc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-f** *file*, **--file**=*file*
|
||||
**-f** *file*, **-\-file**=*file*
|
||||
|
||||
: Reads in *file* and evaluates it, line by line, as though it were read
|
||||
through **stdin**. If expressions are also given (see above), the
|
||||
@ -120,8 +120,8 @@ The following are the options that dc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**. However, if any other
|
||||
**-e**, **--expression**, **-f**, or **--file** arguments are given after
|
||||
as an argument at least once to **-f** or **-\-file**. However, if any other
|
||||
**-e**, **-\-expression**, **-f**, or **-\-file** arguments are given after
|
||||
**-f-** or equivalent is given, dc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
@ -749,7 +749,7 @@ follows any command that needs a register name. The only exception is a newline
|
||||
Unlike most other dc(1) implentations, this dc(1) provides nearly unlimited
|
||||
amounts of registers, if extended register mode is enabled.
|
||||
|
||||
If extended register mode is enabled (**-x** or **--extended-register**
|
||||
If extended register mode is enabled (**-x** or **-\-extended-register**
|
||||
command-line arguments are given), then normal single character registers are
|
||||
used *unless* the character immediately following a command that needs a
|
||||
register name is a space (according to **isspace()**) and not a newline
|
||||
@ -951,17 +951,17 @@ The other statuses will only be returned when dc(1) is not in interactive mode
|
||||
(see the **INTERACTIVE MODE** section), since dc(1) resets its state (see the
|
||||
**RESET** section) and accepts more input when one of those errors occurs in
|
||||
interactive mode. This is also the case when interactive mode is forced by the
|
||||
**-i** flag or **--interactive** option.
|
||||
**-i** flag or **-\-interactive** option.
|
||||
|
||||
These exit statuses allow dc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the **-i** flag or
|
||||
**--interactive** option.
|
||||
**-\-interactive** option.
|
||||
|
||||
# INTERACTIVE MODE
|
||||
|
||||
Like bc(1), dc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both **stdin** and **stdout**
|
||||
are hooked to a terminal, but the **-i** flag and **--interactive** option can
|
||||
are hooked to a terminal, but the **-i** flag and **-\-interactive** option can
|
||||
turn it on in other cases.
|
||||
|
||||
In interactive mode, dc(1) attempts to recover from errors (see the **RESET**
|
||||
|
||||
@ -25,18 +25,17 @@
|
||||
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
.\" POSSIBILITY OF SUCH DAMAGE.
|
||||
.\"
|
||||
.TH "DC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.TH "DC" "1" "March 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.SH Name
|
||||
.PP
|
||||
dc - arbitrary-precision decimal reverse-Polish notation calculator
|
||||
.SH SYNOPSIS
|
||||
.PP
|
||||
\f[B]dc\f[R] [\f[B]-hiPvVx\f[R]] [\f[B]\[en]version\f[R]]
|
||||
[\f[B]\[en]help\f[R]] [\f[B]\[en]interactive\f[R]]
|
||||
[\f[B]\[en]no-prompt\f[R]] [\f[B]\[en]extended-register\f[R]]
|
||||
[\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]\[en]expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]-file\f[R]=\f[I]file\f[R]\&...]
|
||||
\f[B]dc\f[R] [\f[B]-hiPvVx\f[R]] [\f[B]--version\f[R]]
|
||||
[\f[B]--help\f[R]] [\f[B]--interactive\f[R]] [\f[B]--no-prompt\f[R]]
|
||||
[\f[B]--extended-register\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]--expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]--file\f[R]=\f[I]file\f[R]\&...]
|
||||
[\f[I]file\f[R]\&...]
|
||||
.SH DESCRIPTION
|
||||
.PP
|
||||
@ -47,13 +46,13 @@ Arithmetic operations pop arguments off of the stack and push the
|
||||
results.
|
||||
.PP
|
||||
If no files are given on the command-line as extra arguments (i.e., not
|
||||
as \f[B]-f\f[R] or \f[B]\[en]file\f[R] arguments), then dc(1) reads from
|
||||
as \f[B]-f\f[R] or \f[B]--file\f[R] arguments), then dc(1) reads from
|
||||
\f[B]stdin\f[R].
|
||||
Otherwise, those files are processed, and dc(1) will then exit.
|
||||
.PP
|
||||
This is different from the dc(1) on OpenBSD and possibly other dc(1)
|
||||
implementations, where \f[B]-e\f[R] (\f[B]\[en]expression\f[R]) and
|
||||
\f[B]-f\f[R] (\f[B]\[en]file\f[R]) arguments cause dc(1) to execute them
|
||||
implementations, where \f[B]-e\f[R] (\f[B]--expression\f[R]) and
|
||||
\f[B]-f\f[R] (\f[B]--file\f[R]) arguments cause dc(1) to execute them
|
||||
and exit.
|
||||
The reason for this is that this dc(1) allows users to set arguments in
|
||||
the environment variable \f[B]DC_ENV_ARGS\f[R] (see the \f[B]ENVIRONMENT
|
||||
@ -72,13 +71,13 @@ argument or define the environment variable \f[B]DC_EXPR_EXIT\f[R].
|
||||
.PP
|
||||
The following are the options that dc(1) accepts.
|
||||
.TP
|
||||
\f[B]-h\f[R], \f[B]\[en]help\f[R]
|
||||
\f[B]-h\f[R], \f[B]--help\f[R]
|
||||
Prints a usage message and quits.
|
||||
.TP
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]\[en]version\f[R]
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]--version\f[R]
|
||||
Print the version information (copyright header) and exit.
|
||||
.TP
|
||||
\f[B]-i\f[R], \f[B]\[en]interactive\f[R]
|
||||
\f[B]-i\f[R], \f[B]--interactive\f[R]
|
||||
Forces interactive mode.
|
||||
(See the \f[B]INTERACTIVE MODE\f[R] section.)
|
||||
.RS
|
||||
@ -86,7 +85,7 @@ Forces interactive mode.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-P\f[R], \f[B]\[en]no-prompt\f[R]
|
||||
\f[B]-P\f[R], \f[B]--no-prompt\f[R]
|
||||
Disables the prompt in TTY mode.
|
||||
(The prompt is only enabled in TTY mode.
|
||||
See the \f[B]TTY MODE\f[R] section) This is mostly for those users that
|
||||
@ -98,7 +97,7 @@ Most of those users would want to put this option in
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-x\f[R] \f[B]\[en]extended-register\f[R]
|
||||
\f[B]-x\f[R] \f[B]--extended-register\f[R]
|
||||
Enables extended register mode.
|
||||
See the \f[I]Extended Register Mode\f[R] subsection of the
|
||||
\f[B]REGISTERS\f[R] section for more information.
|
||||
@ -107,7 +106,7 @@ See the \f[I]Extended Register Mode\f[R] subsection of the
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]\[en]expression\f[R]=\f[I]expr\f[R]
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]--expression\f[R]=\f[I]expr\f[R]
|
||||
Evaluates \f[I]expr\f[R].
|
||||
If multiple expressions are given, they are evaluated in order.
|
||||
If files are given as well (see below), the expressions and files are
|
||||
@ -120,17 +119,17 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, dc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R], whether on the command-line or in
|
||||
\f[B]DC_ENV_ARGS\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]\[en]file\f[R]=\f[I]file\f[R]
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]--file\f[R]=\f[I]file\f[R]
|
||||
Reads in \f[I]file\f[R] and evaluates it, line by line, as though it
|
||||
were read through \f[B]stdin\f[R].
|
||||
If expressions are also given (see above), the expressions are evaluated
|
||||
@ -141,9 +140,9 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, dc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
@ -837,7 +836,7 @@ Unlike most other dc(1) implentations, this dc(1) provides nearly
|
||||
unlimited amounts of registers, if extended register mode is enabled.
|
||||
.PP
|
||||
If extended register mode is enabled (\f[B]-x\f[R] or
|
||||
\f[B]\[en]extended-register\f[R] command-line arguments are given), then
|
||||
\f[B]--extended-register\f[R] command-line arguments are given), then
|
||||
normal single character registers are used \f[I]unless\f[R] the
|
||||
character immediately following a command that needs a register name is
|
||||
a space (according to \f[B]isspace()\f[R]) and not a newline
|
||||
@ -1052,17 +1051,17 @@ interactive mode (see the \f[B]INTERACTIVE MODE\f[R] section), since
|
||||
dc(1) resets its state (see the \f[B]RESET\f[R] section) and accepts
|
||||
more input when one of those errors occurs in interactive mode.
|
||||
This is also the case when interactive mode is forced by the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.PP
|
||||
These exit statuses allow dc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.SH INTERACTIVE MODE
|
||||
.PP
|
||||
Like bc(1), dc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both \f[B]stdin\f[R]
|
||||
and \f[B]stdout\f[R] are hooked to a terminal, but the \f[B]-i\f[R] flag
|
||||
and \f[B]\[en]interactive\f[R] option can turn it on in other cases.
|
||||
and \f[B]--interactive\f[R] option can turn it on in other cases.
|
||||
.PP
|
||||
In interactive mode, dc(1) attempts to recover from errors (see the
|
||||
\f[B]RESET\f[R] section), and in normal execution, flushes
|
||||
|
||||
@ -34,7 +34,7 @@ dc - arbitrary-precision decimal reverse-Polish notation calculator
|
||||
|
||||
# SYNOPSIS
|
||||
|
||||
**dc** [**-hiPvVx**] [**--version**] [**--help**] [**--interactive**] [**--no-prompt**] [**--extended-register**] [**-e** *expr*] [**--expression**=*expr*...] [**-f** *file*...] [**-file**=*file*...] [*file*...]
|
||||
**dc** [**-hiPvVx**] [**-\-version**] [**-\-help**] [**-\-interactive**] [**-\-no-prompt**] [**-\-extended-register**] [**-e** *expr*] [**-\-expression**=*expr*...] [**-f** *file*...] [**-\-file**=*file*...] [*file*...]
|
||||
|
||||
# DESCRIPTION
|
||||
|
||||
@ -43,11 +43,11 @@ notation) to store numbers and results of computations. Arithmetic operations
|
||||
pop arguments off of the stack and push the results.
|
||||
|
||||
If no files are given on the command-line as extra arguments (i.e., not as
|
||||
**-f** or **--file** arguments), then dc(1) reads from **stdin**. Otherwise,
|
||||
**-f** or **-\-file** arguments), then dc(1) reads from **stdin**. Otherwise,
|
||||
those files are processed, and dc(1) will then exit.
|
||||
|
||||
This is different from the dc(1) on OpenBSD and possibly other dc(1)
|
||||
implementations, where **-e** (**--expression**) and **-f** (**--file**)
|
||||
implementations, where **-e** (**-\-expression**) and **-f** (**-\-file**)
|
||||
arguments cause dc(1) to execute them and exit. The reason for this is that this
|
||||
dc(1) allows users to set arguments in the environment variable **DC_ENV_ARGS**
|
||||
(see the **ENVIRONMENT VARIABLES** section). Any expressions given on the
|
||||
@ -64,21 +64,21 @@ as the last command-line argument or define the environment variable
|
||||
|
||||
The following are the options that dc(1) accepts.
|
||||
|
||||
**-h**, **--help**
|
||||
**-h**, **-\-help**
|
||||
|
||||
: Prints a usage message and quits.
|
||||
|
||||
**-v**, **-V**, **--version**
|
||||
**-v**, **-V**, **-\-version**
|
||||
|
||||
: Print the version information (copyright header) and exit.
|
||||
|
||||
**-i**, **--interactive**
|
||||
**-i**, **-\-interactive**
|
||||
|
||||
: Forces interactive mode. (See the **INTERACTIVE MODE** section.)
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-P**, **--no-prompt**
|
||||
**-P**, **-\-no-prompt**
|
||||
|
||||
: Disables the prompt in TTY mode. (The prompt is only enabled in TTY mode.
|
||||
See the **TTY MODE** section) This is mostly for those users that do not
|
||||
@ -87,14 +87,14 @@ The following are the options that dc(1) accepts.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-x** **--extended-register**
|
||||
**-x** **-\-extended-register**
|
||||
|
||||
: Enables extended register mode. See the *Extended Register Mode* subsection
|
||||
of the **REGISTERS** section for more information.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-e** *expr*, **--expression**=*expr*
|
||||
**-e** *expr*, **-\-expression**=*expr*
|
||||
|
||||
: Evaluates *expr*. If multiple expressions are given, they are evaluated in
|
||||
order. If files are given as well (see below), the expressions and files are
|
||||
@ -104,14 +104,14 @@ The following are the options that dc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**, whether on the
|
||||
as an argument at least once to **-f** or **-\-file**, whether on the
|
||||
command-line or in **DC_ENV_ARGS**. However, if any other **-e**,
|
||||
**--expression**, **-f**, or **--file** arguments are given after **-f-** or
|
||||
equivalent is given, dc(1) will give a fatal error and exit.
|
||||
**-\-expression**, **-f**, or **-\-file** arguments are given after **-f-**
|
||||
or equivalent is given, dc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-f** *file*, **--file**=*file*
|
||||
**-f** *file*, **-\-file**=*file*
|
||||
|
||||
: Reads in *file* and evaluates it, line by line, as though it were read
|
||||
through **stdin**. If expressions are also given (see above), the
|
||||
@ -120,8 +120,8 @@ The following are the options that dc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**. However, if any other
|
||||
**-e**, **--expression**, **-f**, or **--file** arguments are given after
|
||||
as an argument at least once to **-f** or **-\-file**. However, if any other
|
||||
**-e**, **-\-expression**, **-f**, or **-\-file** arguments are given after
|
||||
**-f-** or equivalent is given, dc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
@ -749,7 +749,7 @@ follows any command that needs a register name. The only exception is a newline
|
||||
Unlike most other dc(1) implentations, this dc(1) provides nearly unlimited
|
||||
amounts of registers, if extended register mode is enabled.
|
||||
|
||||
If extended register mode is enabled (**-x** or **--extended-register**
|
||||
If extended register mode is enabled (**-x** or **-\-extended-register**
|
||||
command-line arguments are given), then normal single character registers are
|
||||
used *unless* the character immediately following a command that needs a
|
||||
register name is a space (according to **isspace()**) and not a newline
|
||||
@ -951,17 +951,17 @@ The other statuses will only be returned when dc(1) is not in interactive mode
|
||||
(see the **INTERACTIVE MODE** section), since dc(1) resets its state (see the
|
||||
**RESET** section) and accepts more input when one of those errors occurs in
|
||||
interactive mode. This is also the case when interactive mode is forced by the
|
||||
**-i** flag or **--interactive** option.
|
||||
**-i** flag or **-\-interactive** option.
|
||||
|
||||
These exit statuses allow dc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the **-i** flag or
|
||||
**--interactive** option.
|
||||
**-\-interactive** option.
|
||||
|
||||
# INTERACTIVE MODE
|
||||
|
||||
Like bc(1), dc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both **stdin** and **stdout**
|
||||
are hooked to a terminal, but the **-i** flag and **--interactive** option can
|
||||
are hooked to a terminal, but the **-i** flag and **-\-interactive** option can
|
||||
turn it on in other cases.
|
||||
|
||||
In interactive mode, dc(1) attempts to recover from errors (see the **RESET**
|
||||
|
||||
@ -25,18 +25,17 @@
|
||||
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
.\" POSSIBILITY OF SUCH DAMAGE.
|
||||
.\"
|
||||
.TH "DC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.TH "DC" "1" "March 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.SH Name
|
||||
.PP
|
||||
dc - arbitrary-precision decimal reverse-Polish notation calculator
|
||||
.SH SYNOPSIS
|
||||
.PP
|
||||
\f[B]dc\f[R] [\f[B]-hiPvVx\f[R]] [\f[B]\[en]version\f[R]]
|
||||
[\f[B]\[en]help\f[R]] [\f[B]\[en]interactive\f[R]]
|
||||
[\f[B]\[en]no-prompt\f[R]] [\f[B]\[en]extended-register\f[R]]
|
||||
[\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]\[en]expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]-file\f[R]=\f[I]file\f[R]\&...]
|
||||
\f[B]dc\f[R] [\f[B]-hiPvVx\f[R]] [\f[B]--version\f[R]]
|
||||
[\f[B]--help\f[R]] [\f[B]--interactive\f[R]] [\f[B]--no-prompt\f[R]]
|
||||
[\f[B]--extended-register\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]--expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]--file\f[R]=\f[I]file\f[R]\&...]
|
||||
[\f[I]file\f[R]\&...]
|
||||
.SH DESCRIPTION
|
||||
.PP
|
||||
@ -47,13 +46,13 @@ Arithmetic operations pop arguments off of the stack and push the
|
||||
results.
|
||||
.PP
|
||||
If no files are given on the command-line as extra arguments (i.e., not
|
||||
as \f[B]-f\f[R] or \f[B]\[en]file\f[R] arguments), then dc(1) reads from
|
||||
as \f[B]-f\f[R] or \f[B]--file\f[R] arguments), then dc(1) reads from
|
||||
\f[B]stdin\f[R].
|
||||
Otherwise, those files are processed, and dc(1) will then exit.
|
||||
.PP
|
||||
This is different from the dc(1) on OpenBSD and possibly other dc(1)
|
||||
implementations, where \f[B]-e\f[R] (\f[B]\[en]expression\f[R]) and
|
||||
\f[B]-f\f[R] (\f[B]\[en]file\f[R]) arguments cause dc(1) to execute them
|
||||
implementations, where \f[B]-e\f[R] (\f[B]--expression\f[R]) and
|
||||
\f[B]-f\f[R] (\f[B]--file\f[R]) arguments cause dc(1) to execute them
|
||||
and exit.
|
||||
The reason for this is that this dc(1) allows users to set arguments in
|
||||
the environment variable \f[B]DC_ENV_ARGS\f[R] (see the \f[B]ENVIRONMENT
|
||||
@ -72,13 +71,13 @@ argument or define the environment variable \f[B]DC_EXPR_EXIT\f[R].
|
||||
.PP
|
||||
The following are the options that dc(1) accepts.
|
||||
.TP
|
||||
\f[B]-h\f[R], \f[B]\[en]help\f[R]
|
||||
\f[B]-h\f[R], \f[B]--help\f[R]
|
||||
Prints a usage message and quits.
|
||||
.TP
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]\[en]version\f[R]
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]--version\f[R]
|
||||
Print the version information (copyright header) and exit.
|
||||
.TP
|
||||
\f[B]-i\f[R], \f[B]\[en]interactive\f[R]
|
||||
\f[B]-i\f[R], \f[B]--interactive\f[R]
|
||||
Forces interactive mode.
|
||||
(See the \f[B]INTERACTIVE MODE\f[R] section.)
|
||||
.RS
|
||||
@ -86,14 +85,14 @@ Forces interactive mode.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-P\f[R], \f[B]\[en]no-prompt\f[R]
|
||||
\f[B]-P\f[R], \f[B]--no-prompt\f[R]
|
||||
This option is a no-op.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-x\f[R] \f[B]\[en]extended-register\f[R]
|
||||
\f[B]-x\f[R] \f[B]--extended-register\f[R]
|
||||
Enables extended register mode.
|
||||
See the \f[I]Extended Register Mode\f[R] subsection of the
|
||||
\f[B]REGISTERS\f[R] section for more information.
|
||||
@ -102,7 +101,7 @@ See the \f[I]Extended Register Mode\f[R] subsection of the
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]\[en]expression\f[R]=\f[I]expr\f[R]
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]--expression\f[R]=\f[I]expr\f[R]
|
||||
Evaluates \f[I]expr\f[R].
|
||||
If multiple expressions are given, they are evaluated in order.
|
||||
If files are given as well (see below), the expressions and files are
|
||||
@ -115,17 +114,17 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, dc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R], whether on the command-line or in
|
||||
\f[B]DC_ENV_ARGS\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]\[en]file\f[R]=\f[I]file\f[R]
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]--file\f[R]=\f[I]file\f[R]
|
||||
Reads in \f[I]file\f[R] and evaluates it, line by line, as though it
|
||||
were read through \f[B]stdin\f[R].
|
||||
If expressions are also given (see above), the expressions are evaluated
|
||||
@ -136,9 +135,9 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, dc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
@ -832,7 +831,7 @@ Unlike most other dc(1) implentations, this dc(1) provides nearly
|
||||
unlimited amounts of registers, if extended register mode is enabled.
|
||||
.PP
|
||||
If extended register mode is enabled (\f[B]-x\f[R] or
|
||||
\f[B]\[en]extended-register\f[R] command-line arguments are given), then
|
||||
\f[B]--extended-register\f[R] command-line arguments are given), then
|
||||
normal single character registers are used \f[I]unless\f[R] the
|
||||
character immediately following a command that needs a register name is
|
||||
a space (according to \f[B]isspace()\f[R]) and not a newline
|
||||
@ -1047,17 +1046,17 @@ interactive mode (see the \f[B]INTERACTIVE MODE\f[R] section), since
|
||||
dc(1) resets its state (see the \f[B]RESET\f[R] section) and accepts
|
||||
more input when one of those errors occurs in interactive mode.
|
||||
This is also the case when interactive mode is forced by the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.PP
|
||||
These exit statuses allow dc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.SH INTERACTIVE MODE
|
||||
.PP
|
||||
Like bc(1), dc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both \f[B]stdin\f[R]
|
||||
and \f[B]stdout\f[R] are hooked to a terminal, but the \f[B]-i\f[R] flag
|
||||
and \f[B]\[en]interactive\f[R] option can turn it on in other cases.
|
||||
and \f[B]--interactive\f[R] option can turn it on in other cases.
|
||||
.PP
|
||||
In interactive mode, dc(1) attempts to recover from errors (see the
|
||||
\f[B]RESET\f[R] section), and in normal execution, flushes
|
||||
|
||||
@ -34,7 +34,7 @@ dc - arbitrary-precision decimal reverse-Polish notation calculator
|
||||
|
||||
# SYNOPSIS
|
||||
|
||||
**dc** [**-hiPvVx**] [**--version**] [**--help**] [**--interactive**] [**--no-prompt**] [**--extended-register**] [**-e** *expr*] [**--expression**=*expr*...] [**-f** *file*...] [**-file**=*file*...] [*file*...]
|
||||
**dc** [**-hiPvVx**] [**-\-version**] [**-\-help**] [**-\-interactive**] [**-\-no-prompt**] [**-\-extended-register**] [**-e** *expr*] [**-\-expression**=*expr*...] [**-f** *file*...] [**-\-file**=*file*...] [*file*...]
|
||||
|
||||
# DESCRIPTION
|
||||
|
||||
@ -43,11 +43,11 @@ notation) to store numbers and results of computations. Arithmetic operations
|
||||
pop arguments off of the stack and push the results.
|
||||
|
||||
If no files are given on the command-line as extra arguments (i.e., not as
|
||||
**-f** or **--file** arguments), then dc(1) reads from **stdin**. Otherwise,
|
||||
**-f** or **-\-file** arguments), then dc(1) reads from **stdin**. Otherwise,
|
||||
those files are processed, and dc(1) will then exit.
|
||||
|
||||
This is different from the dc(1) on OpenBSD and possibly other dc(1)
|
||||
implementations, where **-e** (**--expression**) and **-f** (**--file**)
|
||||
implementations, where **-e** (**-\-expression**) and **-f** (**-\-file**)
|
||||
arguments cause dc(1) to execute them and exit. The reason for this is that this
|
||||
dc(1) allows users to set arguments in the environment variable **DC_ENV_ARGS**
|
||||
(see the **ENVIRONMENT VARIABLES** section). Any expressions given on the
|
||||
@ -64,34 +64,34 @@ as the last command-line argument or define the environment variable
|
||||
|
||||
The following are the options that dc(1) accepts.
|
||||
|
||||
**-h**, **--help**
|
||||
**-h**, **-\-help**
|
||||
|
||||
: Prints a usage message and quits.
|
||||
|
||||
**-v**, **-V**, **--version**
|
||||
**-v**, **-V**, **-\-version**
|
||||
|
||||
: Print the version information (copyright header) and exit.
|
||||
|
||||
**-i**, **--interactive**
|
||||
**-i**, **-\-interactive**
|
||||
|
||||
: Forces interactive mode. (See the **INTERACTIVE MODE** section.)
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-P**, **--no-prompt**
|
||||
**-P**, **-\-no-prompt**
|
||||
|
||||
: This option is a no-op.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-x** **--extended-register**
|
||||
**-x** **-\-extended-register**
|
||||
|
||||
: Enables extended register mode. See the *Extended Register Mode* subsection
|
||||
of the **REGISTERS** section for more information.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-e** *expr*, **--expression**=*expr*
|
||||
**-e** *expr*, **-\-expression**=*expr*
|
||||
|
||||
: Evaluates *expr*. If multiple expressions are given, they are evaluated in
|
||||
order. If files are given as well (see below), the expressions and files are
|
||||
@ -101,14 +101,14 @@ The following are the options that dc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**, whether on the
|
||||
as an argument at least once to **-f** or **-\-file**, whether on the
|
||||
command-line or in **DC_ENV_ARGS**. However, if any other **-e**,
|
||||
**--expression**, **-f**, or **--file** arguments are given after **-f-** or
|
||||
equivalent is given, dc(1) will give a fatal error and exit.
|
||||
**-\-expression**, **-f**, or **-\-file** arguments are given after **-f-**
|
||||
or equivalent is given, dc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-f** *file*, **--file**=*file*
|
||||
**-f** *file*, **-\-file**=*file*
|
||||
|
||||
: Reads in *file* and evaluates it, line by line, as though it were read
|
||||
through **stdin**. If expressions are also given (see above), the
|
||||
@ -117,8 +117,8 @@ The following are the options that dc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**. However, if any other
|
||||
**-e**, **--expression**, **-f**, or **--file** arguments are given after
|
||||
as an argument at least once to **-f** or **-\-file**. However, if any other
|
||||
**-e**, **-\-expression**, **-f**, or **-\-file** arguments are given after
|
||||
**-f-** or equivalent is given, dc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
@ -746,7 +746,7 @@ follows any command that needs a register name. The only exception is a newline
|
||||
Unlike most other dc(1) implentations, this dc(1) provides nearly unlimited
|
||||
amounts of registers, if extended register mode is enabled.
|
||||
|
||||
If extended register mode is enabled (**-x** or **--extended-register**
|
||||
If extended register mode is enabled (**-x** or **-\-extended-register**
|
||||
command-line arguments are given), then normal single character registers are
|
||||
used *unless* the character immediately following a command that needs a
|
||||
register name is a space (according to **isspace()**) and not a newline
|
||||
@ -948,17 +948,17 @@ The other statuses will only be returned when dc(1) is not in interactive mode
|
||||
(see the **INTERACTIVE MODE** section), since dc(1) resets its state (see the
|
||||
**RESET** section) and accepts more input when one of those errors occurs in
|
||||
interactive mode. This is also the case when interactive mode is forced by the
|
||||
**-i** flag or **--interactive** option.
|
||||
**-i** flag or **-\-interactive** option.
|
||||
|
||||
These exit statuses allow dc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the **-i** flag or
|
||||
**--interactive** option.
|
||||
**-\-interactive** option.
|
||||
|
||||
# INTERACTIVE MODE
|
||||
|
||||
Like bc(1), dc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both **stdin** and **stdout**
|
||||
are hooked to a terminal, but the **-i** flag and **--interactive** option can
|
||||
are hooked to a terminal, but the **-i** flag and **-\-interactive** option can
|
||||
turn it on in other cases.
|
||||
|
||||
In interactive mode, dc(1) attempts to recover from errors (see the **RESET**
|
||||
|
||||
@ -25,18 +25,17 @@
|
||||
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
.\" POSSIBILITY OF SUCH DAMAGE.
|
||||
.\"
|
||||
.TH "DC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.TH "DC" "1" "March 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.SH Name
|
||||
.PP
|
||||
dc - arbitrary-precision decimal reverse-Polish notation calculator
|
||||
.SH SYNOPSIS
|
||||
.PP
|
||||
\f[B]dc\f[R] [\f[B]-hiPvVx\f[R]] [\f[B]\[en]version\f[R]]
|
||||
[\f[B]\[en]help\f[R]] [\f[B]\[en]interactive\f[R]]
|
||||
[\f[B]\[en]no-prompt\f[R]] [\f[B]\[en]extended-register\f[R]]
|
||||
[\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]\[en]expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]-file\f[R]=\f[I]file\f[R]\&...]
|
||||
\f[B]dc\f[R] [\f[B]-hiPvVx\f[R]] [\f[B]--version\f[R]]
|
||||
[\f[B]--help\f[R]] [\f[B]--interactive\f[R]] [\f[B]--no-prompt\f[R]]
|
||||
[\f[B]--extended-register\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]--expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]--file\f[R]=\f[I]file\f[R]\&...]
|
||||
[\f[I]file\f[R]\&...]
|
||||
.SH DESCRIPTION
|
||||
.PP
|
||||
@ -47,13 +46,13 @@ Arithmetic operations pop arguments off of the stack and push the
|
||||
results.
|
||||
.PP
|
||||
If no files are given on the command-line as extra arguments (i.e., not
|
||||
as \f[B]-f\f[R] or \f[B]\[en]file\f[R] arguments), then dc(1) reads from
|
||||
as \f[B]-f\f[R] or \f[B]--file\f[R] arguments), then dc(1) reads from
|
||||
\f[B]stdin\f[R].
|
||||
Otherwise, those files are processed, and dc(1) will then exit.
|
||||
.PP
|
||||
This is different from the dc(1) on OpenBSD and possibly other dc(1)
|
||||
implementations, where \f[B]-e\f[R] (\f[B]\[en]expression\f[R]) and
|
||||
\f[B]-f\f[R] (\f[B]\[en]file\f[R]) arguments cause dc(1) to execute them
|
||||
implementations, where \f[B]-e\f[R] (\f[B]--expression\f[R]) and
|
||||
\f[B]-f\f[R] (\f[B]--file\f[R]) arguments cause dc(1) to execute them
|
||||
and exit.
|
||||
The reason for this is that this dc(1) allows users to set arguments in
|
||||
the environment variable \f[B]DC_ENV_ARGS\f[R] (see the \f[B]ENVIRONMENT
|
||||
@ -72,13 +71,13 @@ argument or define the environment variable \f[B]DC_EXPR_EXIT\f[R].
|
||||
.PP
|
||||
The following are the options that dc(1) accepts.
|
||||
.TP
|
||||
\f[B]-h\f[R], \f[B]\[en]help\f[R]
|
||||
\f[B]-h\f[R], \f[B]--help\f[R]
|
||||
Prints a usage message and quits.
|
||||
.TP
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]\[en]version\f[R]
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]--version\f[R]
|
||||
Print the version information (copyright header) and exit.
|
||||
.TP
|
||||
\f[B]-i\f[R], \f[B]\[en]interactive\f[R]
|
||||
\f[B]-i\f[R], \f[B]--interactive\f[R]
|
||||
Forces interactive mode.
|
||||
(See the \f[B]INTERACTIVE MODE\f[R] section.)
|
||||
.RS
|
||||
@ -86,14 +85,14 @@ Forces interactive mode.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-P\f[R], \f[B]\[en]no-prompt\f[R]
|
||||
\f[B]-P\f[R], \f[B]--no-prompt\f[R]
|
||||
This option is a no-op.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-x\f[R] \f[B]\[en]extended-register\f[R]
|
||||
\f[B]-x\f[R] \f[B]--extended-register\f[R]
|
||||
Enables extended register mode.
|
||||
See the \f[I]Extended Register Mode\f[R] subsection of the
|
||||
\f[B]REGISTERS\f[R] section for more information.
|
||||
@ -102,7 +101,7 @@ See the \f[I]Extended Register Mode\f[R] subsection of the
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]\[en]expression\f[R]=\f[I]expr\f[R]
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]--expression\f[R]=\f[I]expr\f[R]
|
||||
Evaluates \f[I]expr\f[R].
|
||||
If multiple expressions are given, they are evaluated in order.
|
||||
If files are given as well (see below), the expressions and files are
|
||||
@ -115,17 +114,17 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, dc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R], whether on the command-line or in
|
||||
\f[B]DC_ENV_ARGS\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]\[en]file\f[R]=\f[I]file\f[R]
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]--file\f[R]=\f[I]file\f[R]
|
||||
Reads in \f[I]file\f[R] and evaluates it, line by line, as though it
|
||||
were read through \f[B]stdin\f[R].
|
||||
If expressions are also given (see above), the expressions are evaluated
|
||||
@ -136,9 +135,9 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, dc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
@ -832,7 +831,7 @@ Unlike most other dc(1) implentations, this dc(1) provides nearly
|
||||
unlimited amounts of registers, if extended register mode is enabled.
|
||||
.PP
|
||||
If extended register mode is enabled (\f[B]-x\f[R] or
|
||||
\f[B]\[en]extended-register\f[R] command-line arguments are given), then
|
||||
\f[B]--extended-register\f[R] command-line arguments are given), then
|
||||
normal single character registers are used \f[I]unless\f[R] the
|
||||
character immediately following a command that needs a register name is
|
||||
a space (according to \f[B]isspace()\f[R]) and not a newline
|
||||
@ -1047,17 +1046,17 @@ interactive mode (see the \f[B]INTERACTIVE MODE\f[R] section), since
|
||||
dc(1) resets its state (see the \f[B]RESET\f[R] section) and accepts
|
||||
more input when one of those errors occurs in interactive mode.
|
||||
This is also the case when interactive mode is forced by the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.PP
|
||||
These exit statuses allow dc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.SH INTERACTIVE MODE
|
||||
.PP
|
||||
Like bc(1), dc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both \f[B]stdin\f[R]
|
||||
and \f[B]stdout\f[R] are hooked to a terminal, but the \f[B]-i\f[R] flag
|
||||
and \f[B]\[en]interactive\f[R] option can turn it on in other cases.
|
||||
and \f[B]--interactive\f[R] option can turn it on in other cases.
|
||||
.PP
|
||||
In interactive mode, dc(1) attempts to recover from errors (see the
|
||||
\f[B]RESET\f[R] section), and in normal execution, flushes
|
||||
|
||||
@ -34,7 +34,7 @@ dc - arbitrary-precision decimal reverse-Polish notation calculator
|
||||
|
||||
# SYNOPSIS
|
||||
|
||||
**dc** [**-hiPvVx**] [**--version**] [**--help**] [**--interactive**] [**--no-prompt**] [**--extended-register**] [**-e** *expr*] [**--expression**=*expr*...] [**-f** *file*...] [**-file**=*file*...] [*file*...]
|
||||
**dc** [**-hiPvVx**] [**-\-version**] [**-\-help**] [**-\-interactive**] [**-\-no-prompt**] [**-\-extended-register**] [**-e** *expr*] [**-\-expression**=*expr*...] [**-f** *file*...] [**-\-file**=*file*...] [*file*...]
|
||||
|
||||
# DESCRIPTION
|
||||
|
||||
@ -43,11 +43,11 @@ notation) to store numbers and results of computations. Arithmetic operations
|
||||
pop arguments off of the stack and push the results.
|
||||
|
||||
If no files are given on the command-line as extra arguments (i.e., not as
|
||||
**-f** or **--file** arguments), then dc(1) reads from **stdin**. Otherwise,
|
||||
**-f** or **-\-file** arguments), then dc(1) reads from **stdin**. Otherwise,
|
||||
those files are processed, and dc(1) will then exit.
|
||||
|
||||
This is different from the dc(1) on OpenBSD and possibly other dc(1)
|
||||
implementations, where **-e** (**--expression**) and **-f** (**--file**)
|
||||
implementations, where **-e** (**-\-expression**) and **-f** (**-\-file**)
|
||||
arguments cause dc(1) to execute them and exit. The reason for this is that this
|
||||
dc(1) allows users to set arguments in the environment variable **DC_ENV_ARGS**
|
||||
(see the **ENVIRONMENT VARIABLES** section). Any expressions given on the
|
||||
@ -64,34 +64,34 @@ as the last command-line argument or define the environment variable
|
||||
|
||||
The following are the options that dc(1) accepts.
|
||||
|
||||
**-h**, **--help**
|
||||
**-h**, **-\-help**
|
||||
|
||||
: Prints a usage message and quits.
|
||||
|
||||
**-v**, **-V**, **--version**
|
||||
**-v**, **-V**, **-\-version**
|
||||
|
||||
: Print the version information (copyright header) and exit.
|
||||
|
||||
**-i**, **--interactive**
|
||||
**-i**, **-\-interactive**
|
||||
|
||||
: Forces interactive mode. (See the **INTERACTIVE MODE** section.)
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-P**, **--no-prompt**
|
||||
**-P**, **-\-no-prompt**
|
||||
|
||||
: This option is a no-op.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-x** **--extended-register**
|
||||
**-x** **-\-extended-register**
|
||||
|
||||
: Enables extended register mode. See the *Extended Register Mode* subsection
|
||||
of the **REGISTERS** section for more information.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-e** *expr*, **--expression**=*expr*
|
||||
**-e** *expr*, **-\-expression**=*expr*
|
||||
|
||||
: Evaluates *expr*. If multiple expressions are given, they are evaluated in
|
||||
order. If files are given as well (see below), the expressions and files are
|
||||
@ -101,14 +101,14 @@ The following are the options that dc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**, whether on the
|
||||
as an argument at least once to **-f** or **-\-file**, whether on the
|
||||
command-line or in **DC_ENV_ARGS**. However, if any other **-e**,
|
||||
**--expression**, **-f**, or **--file** arguments are given after **-f-** or
|
||||
equivalent is given, dc(1) will give a fatal error and exit.
|
||||
**-\-expression**, **-f**, or **-\-file** arguments are given after **-f-**
|
||||
or equivalent is given, dc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-f** *file*, **--file**=*file*
|
||||
**-f** *file*, **-\-file**=*file*
|
||||
|
||||
: Reads in *file* and evaluates it, line by line, as though it were read
|
||||
through **stdin**. If expressions are also given (see above), the
|
||||
@ -117,8 +117,8 @@ The following are the options that dc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**. However, if any other
|
||||
**-e**, **--expression**, **-f**, or **--file** arguments are given after
|
||||
as an argument at least once to **-f** or **-\-file**. However, if any other
|
||||
**-e**, **-\-expression**, **-f**, or **-\-file** arguments are given after
|
||||
**-f-** or equivalent is given, dc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
@ -746,7 +746,7 @@ follows any command that needs a register name. The only exception is a newline
|
||||
Unlike most other dc(1) implentations, this dc(1) provides nearly unlimited
|
||||
amounts of registers, if extended register mode is enabled.
|
||||
|
||||
If extended register mode is enabled (**-x** or **--extended-register**
|
||||
If extended register mode is enabled (**-x** or **-\-extended-register**
|
||||
command-line arguments are given), then normal single character registers are
|
||||
used *unless* the character immediately following a command that needs a
|
||||
register name is a space (according to **isspace()**) and not a newline
|
||||
@ -948,17 +948,17 @@ The other statuses will only be returned when dc(1) is not in interactive mode
|
||||
(see the **INTERACTIVE MODE** section), since dc(1) resets its state (see the
|
||||
**RESET** section) and accepts more input when one of those errors occurs in
|
||||
interactive mode. This is also the case when interactive mode is forced by the
|
||||
**-i** flag or **--interactive** option.
|
||||
**-i** flag or **-\-interactive** option.
|
||||
|
||||
These exit statuses allow dc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the **-i** flag or
|
||||
**--interactive** option.
|
||||
**-\-interactive** option.
|
||||
|
||||
# INTERACTIVE MODE
|
||||
|
||||
Like bc(1), dc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both **stdin** and **stdout**
|
||||
are hooked to a terminal, but the **-i** flag and **--interactive** option can
|
||||
are hooked to a terminal, but the **-i** flag and **-\-interactive** option can
|
||||
turn it on in other cases.
|
||||
|
||||
In interactive mode, dc(1) attempts to recover from errors (see the **RESET**
|
||||
|
||||
@ -25,18 +25,17 @@
|
||||
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
.\" POSSIBILITY OF SUCH DAMAGE.
|
||||
.\"
|
||||
.TH "DC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.TH "DC" "1" "March 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.SH Name
|
||||
.PP
|
||||
dc - arbitrary-precision decimal reverse-Polish notation calculator
|
||||
.SH SYNOPSIS
|
||||
.PP
|
||||
\f[B]dc\f[R] [\f[B]-hiPvVx\f[R]] [\f[B]\[en]version\f[R]]
|
||||
[\f[B]\[en]help\f[R]] [\f[B]\[en]interactive\f[R]]
|
||||
[\f[B]\[en]no-prompt\f[R]] [\f[B]\[en]extended-register\f[R]]
|
||||
[\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]\[en]expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]-file\f[R]=\f[I]file\f[R]\&...]
|
||||
\f[B]dc\f[R] [\f[B]-hiPvVx\f[R]] [\f[B]--version\f[R]]
|
||||
[\f[B]--help\f[R]] [\f[B]--interactive\f[R]] [\f[B]--no-prompt\f[R]]
|
||||
[\f[B]--extended-register\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]--expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]--file\f[R]=\f[I]file\f[R]\&...]
|
||||
[\f[I]file\f[R]\&...]
|
||||
.SH DESCRIPTION
|
||||
.PP
|
||||
@ -47,13 +46,13 @@ Arithmetic operations pop arguments off of the stack and push the
|
||||
results.
|
||||
.PP
|
||||
If no files are given on the command-line as extra arguments (i.e., not
|
||||
as \f[B]-f\f[R] or \f[B]\[en]file\f[R] arguments), then dc(1) reads from
|
||||
as \f[B]-f\f[R] or \f[B]--file\f[R] arguments), then dc(1) reads from
|
||||
\f[B]stdin\f[R].
|
||||
Otherwise, those files are processed, and dc(1) will then exit.
|
||||
.PP
|
||||
This is different from the dc(1) on OpenBSD and possibly other dc(1)
|
||||
implementations, where \f[B]-e\f[R] (\f[B]\[en]expression\f[R]) and
|
||||
\f[B]-f\f[R] (\f[B]\[en]file\f[R]) arguments cause dc(1) to execute them
|
||||
implementations, where \f[B]-e\f[R] (\f[B]--expression\f[R]) and
|
||||
\f[B]-f\f[R] (\f[B]--file\f[R]) arguments cause dc(1) to execute them
|
||||
and exit.
|
||||
The reason for this is that this dc(1) allows users to set arguments in
|
||||
the environment variable \f[B]DC_ENV_ARGS\f[R] (see the \f[B]ENVIRONMENT
|
||||
@ -72,13 +71,13 @@ argument or define the environment variable \f[B]DC_EXPR_EXIT\f[R].
|
||||
.PP
|
||||
The following are the options that dc(1) accepts.
|
||||
.TP
|
||||
\f[B]-h\f[R], \f[B]\[en]help\f[R]
|
||||
\f[B]-h\f[R], \f[B]--help\f[R]
|
||||
Prints a usage message and quits.
|
||||
.TP
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]\[en]version\f[R]
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]--version\f[R]
|
||||
Print the version information (copyright header) and exit.
|
||||
.TP
|
||||
\f[B]-i\f[R], \f[B]\[en]interactive\f[R]
|
||||
\f[B]-i\f[R], \f[B]--interactive\f[R]
|
||||
Forces interactive mode.
|
||||
(See the \f[B]INTERACTIVE MODE\f[R] section.)
|
||||
.RS
|
||||
@ -86,7 +85,7 @@ Forces interactive mode.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-P\f[R], \f[B]\[en]no-prompt\f[R]
|
||||
\f[B]-P\f[R], \f[B]--no-prompt\f[R]
|
||||
Disables the prompt in TTY mode.
|
||||
(The prompt is only enabled in TTY mode.
|
||||
See the \f[B]TTY MODE\f[R] section) This is mostly for those users that
|
||||
@ -98,7 +97,7 @@ Most of those users would want to put this option in
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-x\f[R] \f[B]\[en]extended-register\f[R]
|
||||
\f[B]-x\f[R] \f[B]--extended-register\f[R]
|
||||
Enables extended register mode.
|
||||
See the \f[I]Extended Register Mode\f[R] subsection of the
|
||||
\f[B]REGISTERS\f[R] section for more information.
|
||||
@ -107,7 +106,7 @@ See the \f[I]Extended Register Mode\f[R] subsection of the
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]\[en]expression\f[R]=\f[I]expr\f[R]
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]--expression\f[R]=\f[I]expr\f[R]
|
||||
Evaluates \f[I]expr\f[R].
|
||||
If multiple expressions are given, they are evaluated in order.
|
||||
If files are given as well (see below), the expressions and files are
|
||||
@ -120,17 +119,17 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, dc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R], whether on the command-line or in
|
||||
\f[B]DC_ENV_ARGS\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]\[en]file\f[R]=\f[I]file\f[R]
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]--file\f[R]=\f[I]file\f[R]
|
||||
Reads in \f[I]file\f[R] and evaluates it, line by line, as though it
|
||||
were read through \f[B]stdin\f[R].
|
||||
If expressions are also given (see above), the expressions are evaluated
|
||||
@ -141,9 +140,9 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, dc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
@ -837,7 +836,7 @@ Unlike most other dc(1) implentations, this dc(1) provides nearly
|
||||
unlimited amounts of registers, if extended register mode is enabled.
|
||||
.PP
|
||||
If extended register mode is enabled (\f[B]-x\f[R] or
|
||||
\f[B]\[en]extended-register\f[R] command-line arguments are given), then
|
||||
\f[B]--extended-register\f[R] command-line arguments are given), then
|
||||
normal single character registers are used \f[I]unless\f[R] the
|
||||
character immediately following a command that needs a register name is
|
||||
a space (according to \f[B]isspace()\f[R]) and not a newline
|
||||
@ -1052,17 +1051,17 @@ interactive mode (see the \f[B]INTERACTIVE MODE\f[R] section), since
|
||||
dc(1) resets its state (see the \f[B]RESET\f[R] section) and accepts
|
||||
more input when one of those errors occurs in interactive mode.
|
||||
This is also the case when interactive mode is forced by the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.PP
|
||||
These exit statuses allow dc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.SH INTERACTIVE MODE
|
||||
.PP
|
||||
Like bc(1), dc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both \f[B]stdin\f[R]
|
||||
and \f[B]stdout\f[R] are hooked to a terminal, but the \f[B]-i\f[R] flag
|
||||
and \f[B]\[en]interactive\f[R] option can turn it on in other cases.
|
||||
and \f[B]--interactive\f[R] option can turn it on in other cases.
|
||||
.PP
|
||||
In interactive mode, dc(1) attempts to recover from errors (see the
|
||||
\f[B]RESET\f[R] section), and in normal execution, flushes
|
||||
|
||||
@ -34,7 +34,7 @@ dc - arbitrary-precision decimal reverse-Polish notation calculator
|
||||
|
||||
# SYNOPSIS
|
||||
|
||||
**dc** [**-hiPvVx**] [**--version**] [**--help**] [**--interactive**] [**--no-prompt**] [**--extended-register**] [**-e** *expr*] [**--expression**=*expr*...] [**-f** *file*...] [**-file**=*file*...] [*file*...]
|
||||
**dc** [**-hiPvVx**] [**-\-version**] [**-\-help**] [**-\-interactive**] [**-\-no-prompt**] [**-\-extended-register**] [**-e** *expr*] [**-\-expression**=*expr*...] [**-f** *file*...] [**-\-file**=*file*...] [*file*...]
|
||||
|
||||
# DESCRIPTION
|
||||
|
||||
@ -43,11 +43,11 @@ notation) to store numbers and results of computations. Arithmetic operations
|
||||
pop arguments off of the stack and push the results.
|
||||
|
||||
If no files are given on the command-line as extra arguments (i.e., not as
|
||||
**-f** or **--file** arguments), then dc(1) reads from **stdin**. Otherwise,
|
||||
**-f** or **-\-file** arguments), then dc(1) reads from **stdin**. Otherwise,
|
||||
those files are processed, and dc(1) will then exit.
|
||||
|
||||
This is different from the dc(1) on OpenBSD and possibly other dc(1)
|
||||
implementations, where **-e** (**--expression**) and **-f** (**--file**)
|
||||
implementations, where **-e** (**-\-expression**) and **-f** (**-\-file**)
|
||||
arguments cause dc(1) to execute them and exit. The reason for this is that this
|
||||
dc(1) allows users to set arguments in the environment variable **DC_ENV_ARGS**
|
||||
(see the **ENVIRONMENT VARIABLES** section). Any expressions given on the
|
||||
@ -64,21 +64,21 @@ as the last command-line argument or define the environment variable
|
||||
|
||||
The following are the options that dc(1) accepts.
|
||||
|
||||
**-h**, **--help**
|
||||
**-h**, **-\-help**
|
||||
|
||||
: Prints a usage message and quits.
|
||||
|
||||
**-v**, **-V**, **--version**
|
||||
**-v**, **-V**, **-\-version**
|
||||
|
||||
: Print the version information (copyright header) and exit.
|
||||
|
||||
**-i**, **--interactive**
|
||||
**-i**, **-\-interactive**
|
||||
|
||||
: Forces interactive mode. (See the **INTERACTIVE MODE** section.)
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-P**, **--no-prompt**
|
||||
**-P**, **-\-no-prompt**
|
||||
|
||||
: Disables the prompt in TTY mode. (The prompt is only enabled in TTY mode.
|
||||
See the **TTY MODE** section) This is mostly for those users that do not
|
||||
@ -87,14 +87,14 @@ The following are the options that dc(1) accepts.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-x** **--extended-register**
|
||||
**-x** **-\-extended-register**
|
||||
|
||||
: Enables extended register mode. See the *Extended Register Mode* subsection
|
||||
of the **REGISTERS** section for more information.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-e** *expr*, **--expression**=*expr*
|
||||
**-e** *expr*, **-\-expression**=*expr*
|
||||
|
||||
: Evaluates *expr*. If multiple expressions are given, they are evaluated in
|
||||
order. If files are given as well (see below), the expressions and files are
|
||||
@ -104,14 +104,14 @@ The following are the options that dc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**, whether on the
|
||||
as an argument at least once to **-f** or **-\-file**, whether on the
|
||||
command-line or in **DC_ENV_ARGS**. However, if any other **-e**,
|
||||
**--expression**, **-f**, or **--file** arguments are given after **-f-** or
|
||||
equivalent is given, dc(1) will give a fatal error and exit.
|
||||
**-\-expression**, **-f**, or **-\-file** arguments are given after **-f-**
|
||||
or equivalent is given, dc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-f** *file*, **--file**=*file*
|
||||
**-f** *file*, **-\-file**=*file*
|
||||
|
||||
: Reads in *file* and evaluates it, line by line, as though it were read
|
||||
through **stdin**. If expressions are also given (see above), the
|
||||
@ -120,8 +120,8 @@ The following are the options that dc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**. However, if any other
|
||||
**-e**, **--expression**, **-f**, or **--file** arguments are given after
|
||||
as an argument at least once to **-f** or **-\-file**. However, if any other
|
||||
**-e**, **-\-expression**, **-f**, or **-\-file** arguments are given after
|
||||
**-f-** or equivalent is given, dc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
@ -749,7 +749,7 @@ follows any command that needs a register name. The only exception is a newline
|
||||
Unlike most other dc(1) implentations, this dc(1) provides nearly unlimited
|
||||
amounts of registers, if extended register mode is enabled.
|
||||
|
||||
If extended register mode is enabled (**-x** or **--extended-register**
|
||||
If extended register mode is enabled (**-x** or **-\-extended-register**
|
||||
command-line arguments are given), then normal single character registers are
|
||||
used *unless* the character immediately following a command that needs a
|
||||
register name is a space (according to **isspace()**) and not a newline
|
||||
@ -951,17 +951,17 @@ The other statuses will only be returned when dc(1) is not in interactive mode
|
||||
(see the **INTERACTIVE MODE** section), since dc(1) resets its state (see the
|
||||
**RESET** section) and accepts more input when one of those errors occurs in
|
||||
interactive mode. This is also the case when interactive mode is forced by the
|
||||
**-i** flag or **--interactive** option.
|
||||
**-i** flag or **-\-interactive** option.
|
||||
|
||||
These exit statuses allow dc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the **-i** flag or
|
||||
**--interactive** option.
|
||||
**-\-interactive** option.
|
||||
|
||||
# INTERACTIVE MODE
|
||||
|
||||
Like bc(1), dc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both **stdin** and **stdout**
|
||||
are hooked to a terminal, but the **-i** flag and **--interactive** option can
|
||||
are hooked to a terminal, but the **-i** flag and **-\-interactive** option can
|
||||
turn it on in other cases.
|
||||
|
||||
In interactive mode, dc(1) attempts to recover from errors (see the **RESET**
|
||||
|
||||
@ -25,18 +25,17 @@
|
||||
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
.\" POSSIBILITY OF SUCH DAMAGE.
|
||||
.\"
|
||||
.TH "DC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.TH "DC" "1" "March 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.SH Name
|
||||
.PP
|
||||
dc - arbitrary-precision decimal reverse-Polish notation calculator
|
||||
.SH SYNOPSIS
|
||||
.PP
|
||||
\f[B]dc\f[R] [\f[B]-hiPvVx\f[R]] [\f[B]\[en]version\f[R]]
|
||||
[\f[B]\[en]help\f[R]] [\f[B]\[en]interactive\f[R]]
|
||||
[\f[B]\[en]no-prompt\f[R]] [\f[B]\[en]extended-register\f[R]]
|
||||
[\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]\[en]expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]-file\f[R]=\f[I]file\f[R]\&...]
|
||||
\f[B]dc\f[R] [\f[B]-hiPvVx\f[R]] [\f[B]--version\f[R]]
|
||||
[\f[B]--help\f[R]] [\f[B]--interactive\f[R]] [\f[B]--no-prompt\f[R]]
|
||||
[\f[B]--extended-register\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]--expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]--file\f[R]=\f[I]file\f[R]\&...]
|
||||
[\f[I]file\f[R]\&...]
|
||||
.SH DESCRIPTION
|
||||
.PP
|
||||
@ -47,13 +46,13 @@ Arithmetic operations pop arguments off of the stack and push the
|
||||
results.
|
||||
.PP
|
||||
If no files are given on the command-line as extra arguments (i.e., not
|
||||
as \f[B]-f\f[R] or \f[B]\[en]file\f[R] arguments), then dc(1) reads from
|
||||
as \f[B]-f\f[R] or \f[B]--file\f[R] arguments), then dc(1) reads from
|
||||
\f[B]stdin\f[R].
|
||||
Otherwise, those files are processed, and dc(1) will then exit.
|
||||
.PP
|
||||
This is different from the dc(1) on OpenBSD and possibly other dc(1)
|
||||
implementations, where \f[B]-e\f[R] (\f[B]\[en]expression\f[R]) and
|
||||
\f[B]-f\f[R] (\f[B]\[en]file\f[R]) arguments cause dc(1) to execute them
|
||||
implementations, where \f[B]-e\f[R] (\f[B]--expression\f[R]) and
|
||||
\f[B]-f\f[R] (\f[B]--file\f[R]) arguments cause dc(1) to execute them
|
||||
and exit.
|
||||
The reason for this is that this dc(1) allows users to set arguments in
|
||||
the environment variable \f[B]DC_ENV_ARGS\f[R] (see the \f[B]ENVIRONMENT
|
||||
@ -72,13 +71,13 @@ argument or define the environment variable \f[B]DC_EXPR_EXIT\f[R].
|
||||
.PP
|
||||
The following are the options that dc(1) accepts.
|
||||
.TP
|
||||
\f[B]-h\f[R], \f[B]\[en]help\f[R]
|
||||
\f[B]-h\f[R], \f[B]--help\f[R]
|
||||
Prints a usage message and quits.
|
||||
.TP
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]\[en]version\f[R]
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]--version\f[R]
|
||||
Print the version information (copyright header) and exit.
|
||||
.TP
|
||||
\f[B]-i\f[R], \f[B]\[en]interactive\f[R]
|
||||
\f[B]-i\f[R], \f[B]--interactive\f[R]
|
||||
Forces interactive mode.
|
||||
(See the \f[B]INTERACTIVE MODE\f[R] section.)
|
||||
.RS
|
||||
@ -86,14 +85,14 @@ Forces interactive mode.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-P\f[R], \f[B]\[en]no-prompt\f[R]
|
||||
\f[B]-P\f[R], \f[B]--no-prompt\f[R]
|
||||
This option is a no-op.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-x\f[R] \f[B]\[en]extended-register\f[R]
|
||||
\f[B]-x\f[R] \f[B]--extended-register\f[R]
|
||||
Enables extended register mode.
|
||||
See the \f[I]Extended Register Mode\f[R] subsection of the
|
||||
\f[B]REGISTERS\f[R] section for more information.
|
||||
@ -102,7 +101,7 @@ See the \f[I]Extended Register Mode\f[R] subsection of the
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]\[en]expression\f[R]=\f[I]expr\f[R]
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]--expression\f[R]=\f[I]expr\f[R]
|
||||
Evaluates \f[I]expr\f[R].
|
||||
If multiple expressions are given, they are evaluated in order.
|
||||
If files are given as well (see below), the expressions and files are
|
||||
@ -115,17 +114,17 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, dc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R], whether on the command-line or in
|
||||
\f[B]DC_ENV_ARGS\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]\[en]file\f[R]=\f[I]file\f[R]
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]--file\f[R]=\f[I]file\f[R]
|
||||
Reads in \f[I]file\f[R] and evaluates it, line by line, as though it
|
||||
were read through \f[B]stdin\f[R].
|
||||
If expressions are also given (see above), the expressions are evaluated
|
||||
@ -136,9 +135,9 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, dc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
@ -832,7 +831,7 @@ Unlike most other dc(1) implentations, this dc(1) provides nearly
|
||||
unlimited amounts of registers, if extended register mode is enabled.
|
||||
.PP
|
||||
If extended register mode is enabled (\f[B]-x\f[R] or
|
||||
\f[B]\[en]extended-register\f[R] command-line arguments are given), then
|
||||
\f[B]--extended-register\f[R] command-line arguments are given), then
|
||||
normal single character registers are used \f[I]unless\f[R] the
|
||||
character immediately following a command that needs a register name is
|
||||
a space (according to \f[B]isspace()\f[R]) and not a newline
|
||||
@ -1047,17 +1046,17 @@ interactive mode (see the \f[B]INTERACTIVE MODE\f[R] section), since
|
||||
dc(1) resets its state (see the \f[B]RESET\f[R] section) and accepts
|
||||
more input when one of those errors occurs in interactive mode.
|
||||
This is also the case when interactive mode is forced by the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.PP
|
||||
These exit statuses allow dc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.SH INTERACTIVE MODE
|
||||
.PP
|
||||
Like bc(1), dc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both \f[B]stdin\f[R]
|
||||
and \f[B]stdout\f[R] are hooked to a terminal, but the \f[B]-i\f[R] flag
|
||||
and \f[B]\[en]interactive\f[R] option can turn it on in other cases.
|
||||
and \f[B]--interactive\f[R] option can turn it on in other cases.
|
||||
.PP
|
||||
In interactive mode, dc(1) attempts to recover from errors (see the
|
||||
\f[B]RESET\f[R] section), and in normal execution, flushes
|
||||
|
||||
@ -34,7 +34,7 @@ dc - arbitrary-precision decimal reverse-Polish notation calculator
|
||||
|
||||
# SYNOPSIS
|
||||
|
||||
**dc** [**-hiPvVx**] [**--version**] [**--help**] [**--interactive**] [**--no-prompt**] [**--extended-register**] [**-e** *expr*] [**--expression**=*expr*...] [**-f** *file*...] [**-file**=*file*...] [*file*...]
|
||||
**dc** [**-hiPvVx**] [**-\-version**] [**-\-help**] [**-\-interactive**] [**-\-no-prompt**] [**-\-extended-register**] [**-e** *expr*] [**-\-expression**=*expr*...] [**-f** *file*...] [**-\-file**=*file*...] [*file*...]
|
||||
|
||||
# DESCRIPTION
|
||||
|
||||
@ -43,11 +43,11 @@ notation) to store numbers and results of computations. Arithmetic operations
|
||||
pop arguments off of the stack and push the results.
|
||||
|
||||
If no files are given on the command-line as extra arguments (i.e., not as
|
||||
**-f** or **--file** arguments), then dc(1) reads from **stdin**. Otherwise,
|
||||
**-f** or **-\-file** arguments), then dc(1) reads from **stdin**. Otherwise,
|
||||
those files are processed, and dc(1) will then exit.
|
||||
|
||||
This is different from the dc(1) on OpenBSD and possibly other dc(1)
|
||||
implementations, where **-e** (**--expression**) and **-f** (**--file**)
|
||||
implementations, where **-e** (**-\-expression**) and **-f** (**-\-file**)
|
||||
arguments cause dc(1) to execute them and exit. The reason for this is that this
|
||||
dc(1) allows users to set arguments in the environment variable **DC_ENV_ARGS**
|
||||
(see the **ENVIRONMENT VARIABLES** section). Any expressions given on the
|
||||
@ -64,34 +64,34 @@ as the last command-line argument or define the environment variable
|
||||
|
||||
The following are the options that dc(1) accepts.
|
||||
|
||||
**-h**, **--help**
|
||||
**-h**, **-\-help**
|
||||
|
||||
: Prints a usage message and quits.
|
||||
|
||||
**-v**, **-V**, **--version**
|
||||
**-v**, **-V**, **-\-version**
|
||||
|
||||
: Print the version information (copyright header) and exit.
|
||||
|
||||
**-i**, **--interactive**
|
||||
**-i**, **-\-interactive**
|
||||
|
||||
: Forces interactive mode. (See the **INTERACTIVE MODE** section.)
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-P**, **--no-prompt**
|
||||
**-P**, **-\-no-prompt**
|
||||
|
||||
: This option is a no-op.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-x** **--extended-register**
|
||||
**-x** **-\-extended-register**
|
||||
|
||||
: Enables extended register mode. See the *Extended Register Mode* subsection
|
||||
of the **REGISTERS** section for more information.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-e** *expr*, **--expression**=*expr*
|
||||
**-e** *expr*, **-\-expression**=*expr*
|
||||
|
||||
: Evaluates *expr*. If multiple expressions are given, they are evaluated in
|
||||
order. If files are given as well (see below), the expressions and files are
|
||||
@ -101,14 +101,14 @@ The following are the options that dc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**, whether on the
|
||||
as an argument at least once to **-f** or **-\-file**, whether on the
|
||||
command-line or in **DC_ENV_ARGS**. However, if any other **-e**,
|
||||
**--expression**, **-f**, or **--file** arguments are given after **-f-** or
|
||||
equivalent is given, dc(1) will give a fatal error and exit.
|
||||
**-\-expression**, **-f**, or **-\-file** arguments are given after **-f-**
|
||||
or equivalent is given, dc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-f** *file*, **--file**=*file*
|
||||
**-f** *file*, **-\-file**=*file*
|
||||
|
||||
: Reads in *file* and evaluates it, line by line, as though it were read
|
||||
through **stdin**. If expressions are also given (see above), the
|
||||
@ -117,8 +117,8 @@ The following are the options that dc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**. However, if any other
|
||||
**-e**, **--expression**, **-f**, or **--file** arguments are given after
|
||||
as an argument at least once to **-f** or **-\-file**. However, if any other
|
||||
**-e**, **-\-expression**, **-f**, or **-\-file** arguments are given after
|
||||
**-f-** or equivalent is given, dc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
@ -746,7 +746,7 @@ follows any command that needs a register name. The only exception is a newline
|
||||
Unlike most other dc(1) implentations, this dc(1) provides nearly unlimited
|
||||
amounts of registers, if extended register mode is enabled.
|
||||
|
||||
If extended register mode is enabled (**-x** or **--extended-register**
|
||||
If extended register mode is enabled (**-x** or **-\-extended-register**
|
||||
command-line arguments are given), then normal single character registers are
|
||||
used *unless* the character immediately following a command that needs a
|
||||
register name is a space (according to **isspace()**) and not a newline
|
||||
@ -948,17 +948,17 @@ The other statuses will only be returned when dc(1) is not in interactive mode
|
||||
(see the **INTERACTIVE MODE** section), since dc(1) resets its state (see the
|
||||
**RESET** section) and accepts more input when one of those errors occurs in
|
||||
interactive mode. This is also the case when interactive mode is forced by the
|
||||
**-i** flag or **--interactive** option.
|
||||
**-i** flag or **-\-interactive** option.
|
||||
|
||||
These exit statuses allow dc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the **-i** flag or
|
||||
**--interactive** option.
|
||||
**-\-interactive** option.
|
||||
|
||||
# INTERACTIVE MODE
|
||||
|
||||
Like bc(1), dc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both **stdin** and **stdout**
|
||||
are hooked to a terminal, but the **-i** flag and **--interactive** option can
|
||||
are hooked to a terminal, but the **-i** flag and **-\-interactive** option can
|
||||
turn it on in other cases.
|
||||
|
||||
In interactive mode, dc(1) attempts to recover from errors (see the **RESET**
|
||||
|
||||
@ -25,18 +25,17 @@
|
||||
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
.\" POSSIBILITY OF SUCH DAMAGE.
|
||||
.\"
|
||||
.TH "DC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.TH "DC" "1" "March 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.SH Name
|
||||
.PP
|
||||
dc - arbitrary-precision decimal reverse-Polish notation calculator
|
||||
.SH SYNOPSIS
|
||||
.PP
|
||||
\f[B]dc\f[R] [\f[B]-hiPvVx\f[R]] [\f[B]\[en]version\f[R]]
|
||||
[\f[B]\[en]help\f[R]] [\f[B]\[en]interactive\f[R]]
|
||||
[\f[B]\[en]no-prompt\f[R]] [\f[B]\[en]extended-register\f[R]]
|
||||
[\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]\[en]expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]-file\f[R]=\f[I]file\f[R]\&...]
|
||||
\f[B]dc\f[R] [\f[B]-hiPvVx\f[R]] [\f[B]--version\f[R]]
|
||||
[\f[B]--help\f[R]] [\f[B]--interactive\f[R]] [\f[B]--no-prompt\f[R]]
|
||||
[\f[B]--extended-register\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]--expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]--file\f[R]=\f[I]file\f[R]\&...]
|
||||
[\f[I]file\f[R]\&...]
|
||||
.SH DESCRIPTION
|
||||
.PP
|
||||
@ -47,13 +46,13 @@ Arithmetic operations pop arguments off of the stack and push the
|
||||
results.
|
||||
.PP
|
||||
If no files are given on the command-line as extra arguments (i.e., not
|
||||
as \f[B]-f\f[R] or \f[B]\[en]file\f[R] arguments), then dc(1) reads from
|
||||
as \f[B]-f\f[R] or \f[B]--file\f[R] arguments), then dc(1) reads from
|
||||
\f[B]stdin\f[R].
|
||||
Otherwise, those files are processed, and dc(1) will then exit.
|
||||
.PP
|
||||
This is different from the dc(1) on OpenBSD and possibly other dc(1)
|
||||
implementations, where \f[B]-e\f[R] (\f[B]\[en]expression\f[R]) and
|
||||
\f[B]-f\f[R] (\f[B]\[en]file\f[R]) arguments cause dc(1) to execute them
|
||||
implementations, where \f[B]-e\f[R] (\f[B]--expression\f[R]) and
|
||||
\f[B]-f\f[R] (\f[B]--file\f[R]) arguments cause dc(1) to execute them
|
||||
and exit.
|
||||
The reason for this is that this dc(1) allows users to set arguments in
|
||||
the environment variable \f[B]DC_ENV_ARGS\f[R] (see the \f[B]ENVIRONMENT
|
||||
@ -72,13 +71,13 @@ argument or define the environment variable \f[B]DC_EXPR_EXIT\f[R].
|
||||
.PP
|
||||
The following are the options that dc(1) accepts.
|
||||
.TP
|
||||
\f[B]-h\f[R], \f[B]\[en]help\f[R]
|
||||
\f[B]-h\f[R], \f[B]--help\f[R]
|
||||
Prints a usage message and quits.
|
||||
.TP
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]\[en]version\f[R]
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]--version\f[R]
|
||||
Print the version information (copyright header) and exit.
|
||||
.TP
|
||||
\f[B]-i\f[R], \f[B]\[en]interactive\f[R]
|
||||
\f[B]-i\f[R], \f[B]--interactive\f[R]
|
||||
Forces interactive mode.
|
||||
(See the \f[B]INTERACTIVE MODE\f[R] section.)
|
||||
.RS
|
||||
@ -86,14 +85,14 @@ Forces interactive mode.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-P\f[R], \f[B]\[en]no-prompt\f[R]
|
||||
\f[B]-P\f[R], \f[B]--no-prompt\f[R]
|
||||
This option is a no-op.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-x\f[R] \f[B]\[en]extended-register\f[R]
|
||||
\f[B]-x\f[R] \f[B]--extended-register\f[R]
|
||||
Enables extended register mode.
|
||||
See the \f[I]Extended Register Mode\f[R] subsection of the
|
||||
\f[B]REGISTERS\f[R] section for more information.
|
||||
@ -102,7 +101,7 @@ See the \f[I]Extended Register Mode\f[R] subsection of the
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]\[en]expression\f[R]=\f[I]expr\f[R]
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]--expression\f[R]=\f[I]expr\f[R]
|
||||
Evaluates \f[I]expr\f[R].
|
||||
If multiple expressions are given, they are evaluated in order.
|
||||
If files are given as well (see below), the expressions and files are
|
||||
@ -115,17 +114,17 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, dc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R], whether on the command-line or in
|
||||
\f[B]DC_ENV_ARGS\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]\[en]file\f[R]=\f[I]file\f[R]
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]--file\f[R]=\f[I]file\f[R]
|
||||
Reads in \f[I]file\f[R] and evaluates it, line by line, as though it
|
||||
were read through \f[B]stdin\f[R].
|
||||
If expressions are also given (see above), the expressions are evaluated
|
||||
@ -136,9 +135,9 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, dc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
@ -832,7 +831,7 @@ Unlike most other dc(1) implentations, this dc(1) provides nearly
|
||||
unlimited amounts of registers, if extended register mode is enabled.
|
||||
.PP
|
||||
If extended register mode is enabled (\f[B]-x\f[R] or
|
||||
\f[B]\[en]extended-register\f[R] command-line arguments are given), then
|
||||
\f[B]--extended-register\f[R] command-line arguments are given), then
|
||||
normal single character registers are used \f[I]unless\f[R] the
|
||||
character immediately following a command that needs a register name is
|
||||
a space (according to \f[B]isspace()\f[R]) and not a newline
|
||||
@ -1047,17 +1046,17 @@ interactive mode (see the \f[B]INTERACTIVE MODE\f[R] section), since
|
||||
dc(1) resets its state (see the \f[B]RESET\f[R] section) and accepts
|
||||
more input when one of those errors occurs in interactive mode.
|
||||
This is also the case when interactive mode is forced by the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.PP
|
||||
These exit statuses allow dc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.SH INTERACTIVE MODE
|
||||
.PP
|
||||
Like bc(1), dc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both \f[B]stdin\f[R]
|
||||
and \f[B]stdout\f[R] are hooked to a terminal, but the \f[B]-i\f[R] flag
|
||||
and \f[B]\[en]interactive\f[R] option can turn it on in other cases.
|
||||
and \f[B]--interactive\f[R] option can turn it on in other cases.
|
||||
.PP
|
||||
In interactive mode, dc(1) attempts to recover from errors (see the
|
||||
\f[B]RESET\f[R] section), and in normal execution, flushes
|
||||
|
||||
@ -34,7 +34,7 @@ dc - arbitrary-precision decimal reverse-Polish notation calculator
|
||||
|
||||
# SYNOPSIS
|
||||
|
||||
**dc** [**-hiPvVx**] [**--version**] [**--help**] [**--interactive**] [**--no-prompt**] [**--extended-register**] [**-e** *expr*] [**--expression**=*expr*...] [**-f** *file*...] [**-file**=*file*...] [*file*...]
|
||||
**dc** [**-hiPvVx**] [**-\-version**] [**-\-help**] [**-\-interactive**] [**-\-no-prompt**] [**-\-extended-register**] [**-e** *expr*] [**-\-expression**=*expr*...] [**-f** *file*...] [**-\-file**=*file*...] [*file*...]
|
||||
|
||||
# DESCRIPTION
|
||||
|
||||
@ -43,11 +43,11 @@ notation) to store numbers and results of computations. Arithmetic operations
|
||||
pop arguments off of the stack and push the results.
|
||||
|
||||
If no files are given on the command-line as extra arguments (i.e., not as
|
||||
**-f** or **--file** arguments), then dc(1) reads from **stdin**. Otherwise,
|
||||
**-f** or **-\-file** arguments), then dc(1) reads from **stdin**. Otherwise,
|
||||
those files are processed, and dc(1) will then exit.
|
||||
|
||||
This is different from the dc(1) on OpenBSD and possibly other dc(1)
|
||||
implementations, where **-e** (**--expression**) and **-f** (**--file**)
|
||||
implementations, where **-e** (**-\-expression**) and **-f** (**-\-file**)
|
||||
arguments cause dc(1) to execute them and exit. The reason for this is that this
|
||||
dc(1) allows users to set arguments in the environment variable **DC_ENV_ARGS**
|
||||
(see the **ENVIRONMENT VARIABLES** section). Any expressions given on the
|
||||
@ -64,34 +64,34 @@ as the last command-line argument or define the environment variable
|
||||
|
||||
The following are the options that dc(1) accepts.
|
||||
|
||||
**-h**, **--help**
|
||||
**-h**, **-\-help**
|
||||
|
||||
: Prints a usage message and quits.
|
||||
|
||||
**-v**, **-V**, **--version**
|
||||
**-v**, **-V**, **-\-version**
|
||||
|
||||
: Print the version information (copyright header) and exit.
|
||||
|
||||
**-i**, **--interactive**
|
||||
**-i**, **-\-interactive**
|
||||
|
||||
: Forces interactive mode. (See the **INTERACTIVE MODE** section.)
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-P**, **--no-prompt**
|
||||
**-P**, **-\-no-prompt**
|
||||
|
||||
: This option is a no-op.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-x** **--extended-register**
|
||||
**-x** **-\-extended-register**
|
||||
|
||||
: Enables extended register mode. See the *Extended Register Mode* subsection
|
||||
of the **REGISTERS** section for more information.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-e** *expr*, **--expression**=*expr*
|
||||
**-e** *expr*, **-\-expression**=*expr*
|
||||
|
||||
: Evaluates *expr*. If multiple expressions are given, they are evaluated in
|
||||
order. If files are given as well (see below), the expressions and files are
|
||||
@ -101,14 +101,14 @@ The following are the options that dc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**, whether on the
|
||||
as an argument at least once to **-f** or **-\-file**, whether on the
|
||||
command-line or in **DC_ENV_ARGS**. However, if any other **-e**,
|
||||
**--expression**, **-f**, or **--file** arguments are given after **-f-** or
|
||||
equivalent is given, dc(1) will give a fatal error and exit.
|
||||
**-\-expression**, **-f**, or **-\-file** arguments are given after **-f-**
|
||||
or equivalent is given, dc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-f** *file*, **--file**=*file*
|
||||
**-f** *file*, **-\-file**=*file*
|
||||
|
||||
: Reads in *file* and evaluates it, line by line, as though it were read
|
||||
through **stdin**. If expressions are also given (see above), the
|
||||
@ -117,8 +117,8 @@ The following are the options that dc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**. However, if any other
|
||||
**-e**, **--expression**, **-f**, or **--file** arguments are given after
|
||||
as an argument at least once to **-f** or **-\-file**. However, if any other
|
||||
**-e**, **-\-expression**, **-f**, or **-\-file** arguments are given after
|
||||
**-f-** or equivalent is given, dc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
@ -746,7 +746,7 @@ follows any command that needs a register name. The only exception is a newline
|
||||
Unlike most other dc(1) implentations, this dc(1) provides nearly unlimited
|
||||
amounts of registers, if extended register mode is enabled.
|
||||
|
||||
If extended register mode is enabled (**-x** or **--extended-register**
|
||||
If extended register mode is enabled (**-x** or **-\-extended-register**
|
||||
command-line arguments are given), then normal single character registers are
|
||||
used *unless* the character immediately following a command that needs a
|
||||
register name is a space (according to **isspace()**) and not a newline
|
||||
@ -948,17 +948,17 @@ The other statuses will only be returned when dc(1) is not in interactive mode
|
||||
(see the **INTERACTIVE MODE** section), since dc(1) resets its state (see the
|
||||
**RESET** section) and accepts more input when one of those errors occurs in
|
||||
interactive mode. This is also the case when interactive mode is forced by the
|
||||
**-i** flag or **--interactive** option.
|
||||
**-i** flag or **-\-interactive** option.
|
||||
|
||||
These exit statuses allow dc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the **-i** flag or
|
||||
**--interactive** option.
|
||||
**-\-interactive** option.
|
||||
|
||||
# INTERACTIVE MODE
|
||||
|
||||
Like bc(1), dc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both **stdin** and **stdout**
|
||||
are hooked to a terminal, but the **-i** flag and **--interactive** option can
|
||||
are hooked to a terminal, but the **-i** flag and **-\-interactive** option can
|
||||
turn it on in other cases.
|
||||
|
||||
In interactive mode, dc(1) attempts to recover from errors (see the **RESET**
|
||||
|
||||
@ -25,18 +25,17 @@
|
||||
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
.\" POSSIBILITY OF SUCH DAMAGE.
|
||||
.\"
|
||||
.TH "DC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.TH "DC" "1" "March 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.SH Name
|
||||
.PP
|
||||
dc - arbitrary-precision decimal reverse-Polish notation calculator
|
||||
.SH SYNOPSIS
|
||||
.PP
|
||||
\f[B]dc\f[R] [\f[B]-hiPvVx\f[R]] [\f[B]\[en]version\f[R]]
|
||||
[\f[B]\[en]help\f[R]] [\f[B]\[en]interactive\f[R]]
|
||||
[\f[B]\[en]no-prompt\f[R]] [\f[B]\[en]extended-register\f[R]]
|
||||
[\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]\[en]expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]-file\f[R]=\f[I]file\f[R]\&...]
|
||||
\f[B]dc\f[R] [\f[B]-hiPvVx\f[R]] [\f[B]--version\f[R]]
|
||||
[\f[B]--help\f[R]] [\f[B]--interactive\f[R]] [\f[B]--no-prompt\f[R]]
|
||||
[\f[B]--extended-register\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]--expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]--file\f[R]=\f[I]file\f[R]\&...]
|
||||
[\f[I]file\f[R]\&...]
|
||||
.SH DESCRIPTION
|
||||
.PP
|
||||
@ -47,13 +46,13 @@ Arithmetic operations pop arguments off of the stack and push the
|
||||
results.
|
||||
.PP
|
||||
If no files are given on the command-line as extra arguments (i.e., not
|
||||
as \f[B]-f\f[R] or \f[B]\[en]file\f[R] arguments), then dc(1) reads from
|
||||
as \f[B]-f\f[R] or \f[B]--file\f[R] arguments), then dc(1) reads from
|
||||
\f[B]stdin\f[R].
|
||||
Otherwise, those files are processed, and dc(1) will then exit.
|
||||
.PP
|
||||
This is different from the dc(1) on OpenBSD and possibly other dc(1)
|
||||
implementations, where \f[B]-e\f[R] (\f[B]\[en]expression\f[R]) and
|
||||
\f[B]-f\f[R] (\f[B]\[en]file\f[R]) arguments cause dc(1) to execute them
|
||||
implementations, where \f[B]-e\f[R] (\f[B]--expression\f[R]) and
|
||||
\f[B]-f\f[R] (\f[B]--file\f[R]) arguments cause dc(1) to execute them
|
||||
and exit.
|
||||
The reason for this is that this dc(1) allows users to set arguments in
|
||||
the environment variable \f[B]DC_ENV_ARGS\f[R] (see the \f[B]ENVIRONMENT
|
||||
@ -72,13 +71,13 @@ argument or define the environment variable \f[B]DC_EXPR_EXIT\f[R].
|
||||
.PP
|
||||
The following are the options that dc(1) accepts.
|
||||
.TP
|
||||
\f[B]-h\f[R], \f[B]\[en]help\f[R]
|
||||
\f[B]-h\f[R], \f[B]--help\f[R]
|
||||
Prints a usage message and quits.
|
||||
.TP
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]\[en]version\f[R]
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]--version\f[R]
|
||||
Print the version information (copyright header) and exit.
|
||||
.TP
|
||||
\f[B]-i\f[R], \f[B]\[en]interactive\f[R]
|
||||
\f[B]-i\f[R], \f[B]--interactive\f[R]
|
||||
Forces interactive mode.
|
||||
(See the \f[B]INTERACTIVE MODE\f[R] section.)
|
||||
.RS
|
||||
@ -86,7 +85,7 @@ Forces interactive mode.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-P\f[R], \f[B]\[en]no-prompt\f[R]
|
||||
\f[B]-P\f[R], \f[B]--no-prompt\f[R]
|
||||
Disables the prompt in TTY mode.
|
||||
(The prompt is only enabled in TTY mode.
|
||||
See the \f[B]TTY MODE\f[R] section) This is mostly for those users that
|
||||
@ -98,7 +97,7 @@ Most of those users would want to put this option in
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-x\f[R] \f[B]\[en]extended-register\f[R]
|
||||
\f[B]-x\f[R] \f[B]--extended-register\f[R]
|
||||
Enables extended register mode.
|
||||
See the \f[I]Extended Register Mode\f[R] subsection of the
|
||||
\f[B]REGISTERS\f[R] section for more information.
|
||||
@ -107,7 +106,7 @@ See the \f[I]Extended Register Mode\f[R] subsection of the
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]\[en]expression\f[R]=\f[I]expr\f[R]
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]--expression\f[R]=\f[I]expr\f[R]
|
||||
Evaluates \f[I]expr\f[R].
|
||||
If multiple expressions are given, they are evaluated in order.
|
||||
If files are given as well (see below), the expressions and files are
|
||||
@ -120,17 +119,17 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, dc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R], whether on the command-line or in
|
||||
\f[B]DC_ENV_ARGS\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]\[en]file\f[R]=\f[I]file\f[R]
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]--file\f[R]=\f[I]file\f[R]
|
||||
Reads in \f[I]file\f[R] and evaluates it, line by line, as though it
|
||||
were read through \f[B]stdin\f[R].
|
||||
If expressions are also given (see above), the expressions are evaluated
|
||||
@ -141,9 +140,9 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, dc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
@ -1037,7 +1036,7 @@ Unlike most other dc(1) implentations, this dc(1) provides nearly
|
||||
unlimited amounts of registers, if extended register mode is enabled.
|
||||
.PP
|
||||
If extended register mode is enabled (\f[B]-x\f[R] or
|
||||
\f[B]\[en]extended-register\f[R] command-line arguments are given), then
|
||||
\f[B]--extended-register\f[R] command-line arguments are given), then
|
||||
normal single character registers are used \f[I]unless\f[R] the
|
||||
character immediately following a command that needs a register name is
|
||||
a space (according to \f[B]isspace()\f[R]) and not a newline
|
||||
@ -1260,17 +1259,17 @@ interactive mode (see the \f[B]INTERACTIVE MODE\f[R] section), since
|
||||
dc(1) resets its state (see the \f[B]RESET\f[R] section) and accepts
|
||||
more input when one of those errors occurs in interactive mode.
|
||||
This is also the case when interactive mode is forced by the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.PP
|
||||
These exit statuses allow dc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.SH INTERACTIVE MODE
|
||||
.PP
|
||||
Like bc(1), dc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both \f[B]stdin\f[R]
|
||||
and \f[B]stdout\f[R] are hooked to a terminal, but the \f[B]-i\f[R] flag
|
||||
and \f[B]\[en]interactive\f[R] option can turn it on in other cases.
|
||||
and \f[B]--interactive\f[R] option can turn it on in other cases.
|
||||
.PP
|
||||
In interactive mode, dc(1) attempts to recover from errors (see the
|
||||
\f[B]RESET\f[R] section), and in normal execution, flushes
|
||||
|
||||
@ -34,7 +34,7 @@ dc - arbitrary-precision decimal reverse-Polish notation calculator
|
||||
|
||||
# SYNOPSIS
|
||||
|
||||
**dc** [**-hiPvVx**] [**--version**] [**--help**] [**--interactive**] [**--no-prompt**] [**--extended-register**] [**-e** *expr*] [**--expression**=*expr*...] [**-f** *file*...] [**-file**=*file*...] [*file*...]
|
||||
**dc** [**-hiPvVx**] [**-\-version**] [**-\-help**] [**-\-interactive**] [**-\-no-prompt**] [**-\-extended-register**] [**-e** *expr*] [**-\-expression**=*expr*...] [**-f** *file*...] [**-\-file**=*file*...] [*file*...]
|
||||
|
||||
# DESCRIPTION
|
||||
|
||||
@ -43,11 +43,11 @@ notation) to store numbers and results of computations. Arithmetic operations
|
||||
pop arguments off of the stack and push the results.
|
||||
|
||||
If no files are given on the command-line as extra arguments (i.e., not as
|
||||
**-f** or **--file** arguments), then dc(1) reads from **stdin**. Otherwise,
|
||||
**-f** or **-\-file** arguments), then dc(1) reads from **stdin**. Otherwise,
|
||||
those files are processed, and dc(1) will then exit.
|
||||
|
||||
This is different from the dc(1) on OpenBSD and possibly other dc(1)
|
||||
implementations, where **-e** (**--expression**) and **-f** (**--file**)
|
||||
implementations, where **-e** (**-\-expression**) and **-f** (**-\-file**)
|
||||
arguments cause dc(1) to execute them and exit. The reason for this is that this
|
||||
dc(1) allows users to set arguments in the environment variable **DC_ENV_ARGS**
|
||||
(see the **ENVIRONMENT VARIABLES** section). Any expressions given on the
|
||||
@ -64,21 +64,21 @@ as the last command-line argument or define the environment variable
|
||||
|
||||
The following are the options that dc(1) accepts.
|
||||
|
||||
**-h**, **--help**
|
||||
**-h**, **-\-help**
|
||||
|
||||
: Prints a usage message and quits.
|
||||
|
||||
**-v**, **-V**, **--version**
|
||||
**-v**, **-V**, **-\-version**
|
||||
|
||||
: Print the version information (copyright header) and exit.
|
||||
|
||||
**-i**, **--interactive**
|
||||
**-i**, **-\-interactive**
|
||||
|
||||
: Forces interactive mode. (See the **INTERACTIVE MODE** section.)
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-P**, **--no-prompt**
|
||||
**-P**, **-\-no-prompt**
|
||||
|
||||
: Disables the prompt in TTY mode. (The prompt is only enabled in TTY mode.
|
||||
See the **TTY MODE** section) This is mostly for those users that do not
|
||||
@ -87,14 +87,14 @@ The following are the options that dc(1) accepts.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-x** **--extended-register**
|
||||
**-x** **-\-extended-register**
|
||||
|
||||
: Enables extended register mode. See the *Extended Register Mode* subsection
|
||||
of the **REGISTERS** section for more information.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-e** *expr*, **--expression**=*expr*
|
||||
**-e** *expr*, **-\-expression**=*expr*
|
||||
|
||||
: Evaluates *expr*. If multiple expressions are given, they are evaluated in
|
||||
order. If files are given as well (see below), the expressions and files are
|
||||
@ -104,14 +104,14 @@ The following are the options that dc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**, whether on the
|
||||
as an argument at least once to **-f** or **-\-file**, whether on the
|
||||
command-line or in **DC_ENV_ARGS**. However, if any other **-e**,
|
||||
**--expression**, **-f**, or **--file** arguments are given after **-f-** or
|
||||
equivalent is given, dc(1) will give a fatal error and exit.
|
||||
**-\-expression**, **-f**, or **-\-file** arguments are given after **-f-**
|
||||
or equivalent is given, dc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-f** *file*, **--file**=*file*
|
||||
**-f** *file*, **-\-file**=*file*
|
||||
|
||||
: Reads in *file* and evaluates it, line by line, as though it were read
|
||||
through **stdin**. If expressions are also given (see above), the
|
||||
@ -120,8 +120,8 @@ The following are the options that dc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**. However, if any other
|
||||
**-e**, **--expression**, **-f**, or **--file** arguments are given after
|
||||
as an argument at least once to **-f** or **-\-file**. However, if any other
|
||||
**-e**, **-\-expression**, **-f**, or **-\-file** arguments are given after
|
||||
**-f-** or equivalent is given, dc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
@ -909,7 +909,7 @@ follows any command that needs a register name. The only exception is a newline
|
||||
Unlike most other dc(1) implentations, this dc(1) provides nearly unlimited
|
||||
amounts of registers, if extended register mode is enabled.
|
||||
|
||||
If extended register mode is enabled (**-x** or **--extended-register**
|
||||
If extended register mode is enabled (**-x** or **-\-extended-register**
|
||||
command-line arguments are given), then normal single character registers are
|
||||
used *unless* the character immediately following a command that needs a
|
||||
register name is a space (according to **isspace()**) and not a newline
|
||||
@ -1118,17 +1118,17 @@ The other statuses will only be returned when dc(1) is not in interactive mode
|
||||
(see the **INTERACTIVE MODE** section), since dc(1) resets its state (see the
|
||||
**RESET** section) and accepts more input when one of those errors occurs in
|
||||
interactive mode. This is also the case when interactive mode is forced by the
|
||||
**-i** flag or **--interactive** option.
|
||||
**-i** flag or **-\-interactive** option.
|
||||
|
||||
These exit statuses allow dc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the **-i** flag or
|
||||
**--interactive** option.
|
||||
**-\-interactive** option.
|
||||
|
||||
# INTERACTIVE MODE
|
||||
|
||||
Like bc(1), dc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both **stdin** and **stdout**
|
||||
are hooked to a terminal, but the **-i** flag and **--interactive** option can
|
||||
are hooked to a terminal, but the **-i** flag and **-\-interactive** option can
|
||||
turn it on in other cases.
|
||||
|
||||
In interactive mode, dc(1) attempts to recover from errors (see the **RESET**
|
||||
|
||||
@ -25,18 +25,17 @@
|
||||
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
.\" POSSIBILITY OF SUCH DAMAGE.
|
||||
.\"
|
||||
.TH "DC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.TH "DC" "1" "March 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.SH Name
|
||||
.PP
|
||||
dc - arbitrary-precision decimal reverse-Polish notation calculator
|
||||
.SH SYNOPSIS
|
||||
.PP
|
||||
\f[B]dc\f[R] [\f[B]-hiPvVx\f[R]] [\f[B]\[en]version\f[R]]
|
||||
[\f[B]\[en]help\f[R]] [\f[B]\[en]interactive\f[R]]
|
||||
[\f[B]\[en]no-prompt\f[R]] [\f[B]\[en]extended-register\f[R]]
|
||||
[\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]\[en]expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]-file\f[R]=\f[I]file\f[R]\&...]
|
||||
\f[B]dc\f[R] [\f[B]-hiPvVx\f[R]] [\f[B]--version\f[R]]
|
||||
[\f[B]--help\f[R]] [\f[B]--interactive\f[R]] [\f[B]--no-prompt\f[R]]
|
||||
[\f[B]--extended-register\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]--expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]--file\f[R]=\f[I]file\f[R]\&...]
|
||||
[\f[I]file\f[R]\&...]
|
||||
.SH DESCRIPTION
|
||||
.PP
|
||||
@ -47,13 +46,13 @@ Arithmetic operations pop arguments off of the stack and push the
|
||||
results.
|
||||
.PP
|
||||
If no files are given on the command-line as extra arguments (i.e., not
|
||||
as \f[B]-f\f[R] or \f[B]\[en]file\f[R] arguments), then dc(1) reads from
|
||||
as \f[B]-f\f[R] or \f[B]--file\f[R] arguments), then dc(1) reads from
|
||||
\f[B]stdin\f[R].
|
||||
Otherwise, those files are processed, and dc(1) will then exit.
|
||||
.PP
|
||||
This is different from the dc(1) on OpenBSD and possibly other dc(1)
|
||||
implementations, where \f[B]-e\f[R] (\f[B]\[en]expression\f[R]) and
|
||||
\f[B]-f\f[R] (\f[B]\[en]file\f[R]) arguments cause dc(1) to execute them
|
||||
implementations, where \f[B]-e\f[R] (\f[B]--expression\f[R]) and
|
||||
\f[B]-f\f[R] (\f[B]--file\f[R]) arguments cause dc(1) to execute them
|
||||
and exit.
|
||||
The reason for this is that this dc(1) allows users to set arguments in
|
||||
the environment variable \f[B]DC_ENV_ARGS\f[R] (see the \f[B]ENVIRONMENT
|
||||
@ -72,13 +71,13 @@ argument or define the environment variable \f[B]DC_EXPR_EXIT\f[R].
|
||||
.PP
|
||||
The following are the options that dc(1) accepts.
|
||||
.TP
|
||||
\f[B]-h\f[R], \f[B]\[en]help\f[R]
|
||||
\f[B]-h\f[R], \f[B]--help\f[R]
|
||||
Prints a usage message and quits.
|
||||
.TP
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]\[en]version\f[R]
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]--version\f[R]
|
||||
Print the version information (copyright header) and exit.
|
||||
.TP
|
||||
\f[B]-i\f[R], \f[B]\[en]interactive\f[R]
|
||||
\f[B]-i\f[R], \f[B]--interactive\f[R]
|
||||
Forces interactive mode.
|
||||
(See the \f[B]INTERACTIVE MODE\f[R] section.)
|
||||
.RS
|
||||
@ -86,7 +85,7 @@ Forces interactive mode.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-P\f[R], \f[B]\[en]no-prompt\f[R]
|
||||
\f[B]-P\f[R], \f[B]--no-prompt\f[R]
|
||||
Disables the prompt in TTY mode.
|
||||
(The prompt is only enabled in TTY mode.
|
||||
See the \f[B]TTY MODE\f[R] section) This is mostly for those users that
|
||||
@ -98,7 +97,7 @@ Most of those users would want to put this option in
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-x\f[R] \f[B]\[en]extended-register\f[R]
|
||||
\f[B]-x\f[R] \f[B]--extended-register\f[R]
|
||||
Enables extended register mode.
|
||||
See the \f[I]Extended Register Mode\f[R] subsection of the
|
||||
\f[B]REGISTERS\f[R] section for more information.
|
||||
@ -107,7 +106,7 @@ See the \f[I]Extended Register Mode\f[R] subsection of the
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]\[en]expression\f[R]=\f[I]expr\f[R]
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]--expression\f[R]=\f[I]expr\f[R]
|
||||
Evaluates \f[I]expr\f[R].
|
||||
If multiple expressions are given, they are evaluated in order.
|
||||
If files are given as well (see below), the expressions and files are
|
||||
@ -120,17 +119,17 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, dc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R], whether on the command-line or in
|
||||
\f[B]DC_ENV_ARGS\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]\[en]file\f[R]=\f[I]file\f[R]
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]--file\f[R]=\f[I]file\f[R]
|
||||
Reads in \f[I]file\f[R] and evaluates it, line by line, as though it
|
||||
were read through \f[B]stdin\f[R].
|
||||
If expressions are also given (see above), the expressions are evaluated
|
||||
@ -141,9 +140,9 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, dc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
@ -1037,7 +1036,7 @@ Unlike most other dc(1) implentations, this dc(1) provides nearly
|
||||
unlimited amounts of registers, if extended register mode is enabled.
|
||||
.PP
|
||||
If extended register mode is enabled (\f[B]-x\f[R] or
|
||||
\f[B]\[en]extended-register\f[R] command-line arguments are given), then
|
||||
\f[B]--extended-register\f[R] command-line arguments are given), then
|
||||
normal single character registers are used \f[I]unless\f[R] the
|
||||
character immediately following a command that needs a register name is
|
||||
a space (according to \f[B]isspace()\f[R]) and not a newline
|
||||
@ -1260,17 +1259,17 @@ interactive mode (see the \f[B]INTERACTIVE MODE\f[R] section), since
|
||||
dc(1) resets its state (see the \f[B]RESET\f[R] section) and accepts
|
||||
more input when one of those errors occurs in interactive mode.
|
||||
This is also the case when interactive mode is forced by the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.PP
|
||||
These exit statuses allow dc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.SH INTERACTIVE MODE
|
||||
.PP
|
||||
Like bc(1), dc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both \f[B]stdin\f[R]
|
||||
and \f[B]stdout\f[R] are hooked to a terminal, but the \f[B]-i\f[R] flag
|
||||
and \f[B]\[en]interactive\f[R] option can turn it on in other cases.
|
||||
and \f[B]--interactive\f[R] option can turn it on in other cases.
|
||||
.PP
|
||||
In interactive mode, dc(1) attempts to recover from errors (see the
|
||||
\f[B]RESET\f[R] section), and in normal execution, flushes
|
||||
|
||||
@ -34,7 +34,7 @@ dc - arbitrary-precision decimal reverse-Polish notation calculator
|
||||
|
||||
# SYNOPSIS
|
||||
|
||||
**dc** [**-hiPvVx**] [**--version**] [**--help**] [**--interactive**] [**--no-prompt**] [**--extended-register**] [**-e** *expr*] [**--expression**=*expr*...] [**-f** *file*...] [**-file**=*file*...] [*file*...]
|
||||
**dc** [**-hiPvVx**] [**-\-version**] [**-\-help**] [**-\-interactive**] [**-\-no-prompt**] [**-\-extended-register**] [**-e** *expr*] [**-\-expression**=*expr*...] [**-f** *file*...] [**-\-file**=*file*...] [*file*...]
|
||||
|
||||
# DESCRIPTION
|
||||
|
||||
@ -43,11 +43,11 @@ notation) to store numbers and results of computations. Arithmetic operations
|
||||
pop arguments off of the stack and push the results.
|
||||
|
||||
If no files are given on the command-line as extra arguments (i.e., not as
|
||||
**-f** or **--file** arguments), then dc(1) reads from **stdin**. Otherwise,
|
||||
**-f** or **-\-file** arguments), then dc(1) reads from **stdin**. Otherwise,
|
||||
those files are processed, and dc(1) will then exit.
|
||||
|
||||
This is different from the dc(1) on OpenBSD and possibly other dc(1)
|
||||
implementations, where **-e** (**--expression**) and **-f** (**--file**)
|
||||
implementations, where **-e** (**-\-expression**) and **-f** (**-\-file**)
|
||||
arguments cause dc(1) to execute them and exit. The reason for this is that this
|
||||
dc(1) allows users to set arguments in the environment variable **DC_ENV_ARGS**
|
||||
(see the **ENVIRONMENT VARIABLES** section). Any expressions given on the
|
||||
@ -64,21 +64,21 @@ as the last command-line argument or define the environment variable
|
||||
|
||||
The following are the options that dc(1) accepts.
|
||||
|
||||
**-h**, **--help**
|
||||
**-h**, **-\-help**
|
||||
|
||||
: Prints a usage message and quits.
|
||||
|
||||
**-v**, **-V**, **--version**
|
||||
**-v**, **-V**, **-\-version**
|
||||
|
||||
: Print the version information (copyright header) and exit.
|
||||
|
||||
**-i**, **--interactive**
|
||||
**-i**, **-\-interactive**
|
||||
|
||||
: Forces interactive mode. (See the **INTERACTIVE MODE** section.)
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-P**, **--no-prompt**
|
||||
**-P**, **-\-no-prompt**
|
||||
|
||||
: Disables the prompt in TTY mode. (The prompt is only enabled in TTY mode.
|
||||
See the **TTY MODE** section) This is mostly for those users that do not
|
||||
@ -87,14 +87,14 @@ The following are the options that dc(1) accepts.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-x** **--extended-register**
|
||||
**-x** **-\-extended-register**
|
||||
|
||||
: Enables extended register mode. See the *Extended Register Mode* subsection
|
||||
of the **REGISTERS** section for more information.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-e** *expr*, **--expression**=*expr*
|
||||
**-e** *expr*, **-\-expression**=*expr*
|
||||
|
||||
: Evaluates *expr*. If multiple expressions are given, they are evaluated in
|
||||
order. If files are given as well (see below), the expressions and files are
|
||||
@ -104,14 +104,14 @@ The following are the options that dc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**, whether on the
|
||||
as an argument at least once to **-f** or **-\-file**, whether on the
|
||||
command-line or in **DC_ENV_ARGS**. However, if any other **-e**,
|
||||
**--expression**, **-f**, or **--file** arguments are given after **-f-** or
|
||||
equivalent is given, dc(1) will give a fatal error and exit.
|
||||
**-\-expression**, **-f**, or **-\-file** arguments are given after **-f-**
|
||||
or equivalent is given, dc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-f** *file*, **--file**=*file*
|
||||
**-f** *file*, **-\-file**=*file*
|
||||
|
||||
: Reads in *file* and evaluates it, line by line, as though it were read
|
||||
through **stdin**. If expressions are also given (see above), the
|
||||
@ -120,8 +120,8 @@ The following are the options that dc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**. However, if any other
|
||||
**-e**, **--expression**, **-f**, or **--file** arguments are given after
|
||||
as an argument at least once to **-f** or **-\-file**. However, if any other
|
||||
**-e**, **-\-expression**, **-f**, or **-\-file** arguments are given after
|
||||
**-f-** or equivalent is given, dc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
@ -909,7 +909,7 @@ follows any command that needs a register name. The only exception is a newline
|
||||
Unlike most other dc(1) implentations, this dc(1) provides nearly unlimited
|
||||
amounts of registers, if extended register mode is enabled.
|
||||
|
||||
If extended register mode is enabled (**-x** or **--extended-register**
|
||||
If extended register mode is enabled (**-x** or **-\-extended-register**
|
||||
command-line arguments are given), then normal single character registers are
|
||||
used *unless* the character immediately following a command that needs a
|
||||
register name is a space (according to **isspace()**) and not a newline
|
||||
@ -1118,17 +1118,17 @@ The other statuses will only be returned when dc(1) is not in interactive mode
|
||||
(see the **INTERACTIVE MODE** section), since dc(1) resets its state (see the
|
||||
**RESET** section) and accepts more input when one of those errors occurs in
|
||||
interactive mode. This is also the case when interactive mode is forced by the
|
||||
**-i** flag or **--interactive** option.
|
||||
**-i** flag or **-\-interactive** option.
|
||||
|
||||
These exit statuses allow dc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the **-i** flag or
|
||||
**--interactive** option.
|
||||
**-\-interactive** option.
|
||||
|
||||
# INTERACTIVE MODE
|
||||
|
||||
Like bc(1), dc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both **stdin** and **stdout**
|
||||
are hooked to a terminal, but the **-i** flag and **--interactive** option can
|
||||
are hooked to a terminal, but the **-i** flag and **-\-interactive** option can
|
||||
turn it on in other cases.
|
||||
|
||||
In interactive mode, dc(1) attempts to recover from errors (see the **RESET**
|
||||
|
||||
@ -25,18 +25,17 @@
|
||||
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
.\" POSSIBILITY OF SUCH DAMAGE.
|
||||
.\"
|
||||
.TH "DC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.TH "DC" "1" "March 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.SH Name
|
||||
.PP
|
||||
dc - arbitrary-precision decimal reverse-Polish notation calculator
|
||||
.SH SYNOPSIS
|
||||
.PP
|
||||
\f[B]dc\f[R] [\f[B]-hiPvVx\f[R]] [\f[B]\[en]version\f[R]]
|
||||
[\f[B]\[en]help\f[R]] [\f[B]\[en]interactive\f[R]]
|
||||
[\f[B]\[en]no-prompt\f[R]] [\f[B]\[en]extended-register\f[R]]
|
||||
[\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]\[en]expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]-file\f[R]=\f[I]file\f[R]\&...]
|
||||
\f[B]dc\f[R] [\f[B]-hiPvVx\f[R]] [\f[B]--version\f[R]]
|
||||
[\f[B]--help\f[R]] [\f[B]--interactive\f[R]] [\f[B]--no-prompt\f[R]]
|
||||
[\f[B]--extended-register\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]--expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]--file\f[R]=\f[I]file\f[R]\&...]
|
||||
[\f[I]file\f[R]\&...]
|
||||
.SH DESCRIPTION
|
||||
.PP
|
||||
@ -47,13 +46,13 @@ Arithmetic operations pop arguments off of the stack and push the
|
||||
results.
|
||||
.PP
|
||||
If no files are given on the command-line as extra arguments (i.e., not
|
||||
as \f[B]-f\f[R] or \f[B]\[en]file\f[R] arguments), then dc(1) reads from
|
||||
as \f[B]-f\f[R] or \f[B]--file\f[R] arguments), then dc(1) reads from
|
||||
\f[B]stdin\f[R].
|
||||
Otherwise, those files are processed, and dc(1) will then exit.
|
||||
.PP
|
||||
This is different from the dc(1) on OpenBSD and possibly other dc(1)
|
||||
implementations, where \f[B]-e\f[R] (\f[B]\[en]expression\f[R]) and
|
||||
\f[B]-f\f[R] (\f[B]\[en]file\f[R]) arguments cause dc(1) to execute them
|
||||
implementations, where \f[B]-e\f[R] (\f[B]--expression\f[R]) and
|
||||
\f[B]-f\f[R] (\f[B]--file\f[R]) arguments cause dc(1) to execute them
|
||||
and exit.
|
||||
The reason for this is that this dc(1) allows users to set arguments in
|
||||
the environment variable \f[B]DC_ENV_ARGS\f[R] (see the \f[B]ENVIRONMENT
|
||||
@ -72,13 +71,13 @@ argument or define the environment variable \f[B]DC_EXPR_EXIT\f[R].
|
||||
.PP
|
||||
The following are the options that dc(1) accepts.
|
||||
.TP
|
||||
\f[B]-h\f[R], \f[B]\[en]help\f[R]
|
||||
\f[B]-h\f[R], \f[B]--help\f[R]
|
||||
Prints a usage message and quits.
|
||||
.TP
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]\[en]version\f[R]
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]--version\f[R]
|
||||
Print the version information (copyright header) and exit.
|
||||
.TP
|
||||
\f[B]-i\f[R], \f[B]\[en]interactive\f[R]
|
||||
\f[B]-i\f[R], \f[B]--interactive\f[R]
|
||||
Forces interactive mode.
|
||||
(See the \f[B]INTERACTIVE MODE\f[R] section.)
|
||||
.RS
|
||||
@ -86,14 +85,14 @@ Forces interactive mode.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-P\f[R], \f[B]\[en]no-prompt\f[R]
|
||||
\f[B]-P\f[R], \f[B]--no-prompt\f[R]
|
||||
This option is a no-op.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-x\f[R] \f[B]\[en]extended-register\f[R]
|
||||
\f[B]-x\f[R] \f[B]--extended-register\f[R]
|
||||
Enables extended register mode.
|
||||
See the \f[I]Extended Register Mode\f[R] subsection of the
|
||||
\f[B]REGISTERS\f[R] section for more information.
|
||||
@ -102,7 +101,7 @@ See the \f[I]Extended Register Mode\f[R] subsection of the
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]\[en]expression\f[R]=\f[I]expr\f[R]
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]--expression\f[R]=\f[I]expr\f[R]
|
||||
Evaluates \f[I]expr\f[R].
|
||||
If multiple expressions are given, they are evaluated in order.
|
||||
If files are given as well (see below), the expressions and files are
|
||||
@ -115,17 +114,17 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, dc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R], whether on the command-line or in
|
||||
\f[B]DC_ENV_ARGS\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]\[en]file\f[R]=\f[I]file\f[R]
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]--file\f[R]=\f[I]file\f[R]
|
||||
Reads in \f[I]file\f[R] and evaluates it, line by line, as though it
|
||||
were read through \f[B]stdin\f[R].
|
||||
If expressions are also given (see above), the expressions are evaluated
|
||||
@ -136,9 +135,9 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, dc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
@ -1032,7 +1031,7 @@ Unlike most other dc(1) implentations, this dc(1) provides nearly
|
||||
unlimited amounts of registers, if extended register mode is enabled.
|
||||
.PP
|
||||
If extended register mode is enabled (\f[B]-x\f[R] or
|
||||
\f[B]\[en]extended-register\f[R] command-line arguments are given), then
|
||||
\f[B]--extended-register\f[R] command-line arguments are given), then
|
||||
normal single character registers are used \f[I]unless\f[R] the
|
||||
character immediately following a command that needs a register name is
|
||||
a space (according to \f[B]isspace()\f[R]) and not a newline
|
||||
@ -1255,17 +1254,17 @@ interactive mode (see the \f[B]INTERACTIVE MODE\f[R] section), since
|
||||
dc(1) resets its state (see the \f[B]RESET\f[R] section) and accepts
|
||||
more input when one of those errors occurs in interactive mode.
|
||||
This is also the case when interactive mode is forced by the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.PP
|
||||
These exit statuses allow dc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.SH INTERACTIVE MODE
|
||||
.PP
|
||||
Like bc(1), dc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both \f[B]stdin\f[R]
|
||||
and \f[B]stdout\f[R] are hooked to a terminal, but the \f[B]-i\f[R] flag
|
||||
and \f[B]\[en]interactive\f[R] option can turn it on in other cases.
|
||||
and \f[B]--interactive\f[R] option can turn it on in other cases.
|
||||
.PP
|
||||
In interactive mode, dc(1) attempts to recover from errors (see the
|
||||
\f[B]RESET\f[R] section), and in normal execution, flushes
|
||||
|
||||
@ -34,7 +34,7 @@ dc - arbitrary-precision decimal reverse-Polish notation calculator
|
||||
|
||||
# SYNOPSIS
|
||||
|
||||
**dc** [**-hiPvVx**] [**--version**] [**--help**] [**--interactive**] [**--no-prompt**] [**--extended-register**] [**-e** *expr*] [**--expression**=*expr*...] [**-f** *file*...] [**-file**=*file*...] [*file*...]
|
||||
**dc** [**-hiPvVx**] [**-\-version**] [**-\-help**] [**-\-interactive**] [**-\-no-prompt**] [**-\-extended-register**] [**-e** *expr*] [**-\-expression**=*expr*...] [**-f** *file*...] [**-\-file**=*file*...] [*file*...]
|
||||
|
||||
# DESCRIPTION
|
||||
|
||||
@ -43,11 +43,11 @@ notation) to store numbers and results of computations. Arithmetic operations
|
||||
pop arguments off of the stack and push the results.
|
||||
|
||||
If no files are given on the command-line as extra arguments (i.e., not as
|
||||
**-f** or **--file** arguments), then dc(1) reads from **stdin**. Otherwise,
|
||||
**-f** or **-\-file** arguments), then dc(1) reads from **stdin**. Otherwise,
|
||||
those files are processed, and dc(1) will then exit.
|
||||
|
||||
This is different from the dc(1) on OpenBSD and possibly other dc(1)
|
||||
implementations, where **-e** (**--expression**) and **-f** (**--file**)
|
||||
implementations, where **-e** (**-\-expression**) and **-f** (**-\-file**)
|
||||
arguments cause dc(1) to execute them and exit. The reason for this is that this
|
||||
dc(1) allows users to set arguments in the environment variable **DC_ENV_ARGS**
|
||||
(see the **ENVIRONMENT VARIABLES** section). Any expressions given on the
|
||||
@ -64,34 +64,34 @@ as the last command-line argument or define the environment variable
|
||||
|
||||
The following are the options that dc(1) accepts.
|
||||
|
||||
**-h**, **--help**
|
||||
**-h**, **-\-help**
|
||||
|
||||
: Prints a usage message and quits.
|
||||
|
||||
**-v**, **-V**, **--version**
|
||||
**-v**, **-V**, **-\-version**
|
||||
|
||||
: Print the version information (copyright header) and exit.
|
||||
|
||||
**-i**, **--interactive**
|
||||
**-i**, **-\-interactive**
|
||||
|
||||
: Forces interactive mode. (See the **INTERACTIVE MODE** section.)
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-P**, **--no-prompt**
|
||||
**-P**, **-\-no-prompt**
|
||||
|
||||
: This option is a no-op.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-x** **--extended-register**
|
||||
**-x** **-\-extended-register**
|
||||
|
||||
: Enables extended register mode. See the *Extended Register Mode* subsection
|
||||
of the **REGISTERS** section for more information.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-e** *expr*, **--expression**=*expr*
|
||||
**-e** *expr*, **-\-expression**=*expr*
|
||||
|
||||
: Evaluates *expr*. If multiple expressions are given, they are evaluated in
|
||||
order. If files are given as well (see below), the expressions and files are
|
||||
@ -101,14 +101,14 @@ The following are the options that dc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**, whether on the
|
||||
as an argument at least once to **-f** or **-\-file**, whether on the
|
||||
command-line or in **DC_ENV_ARGS**. However, if any other **-e**,
|
||||
**--expression**, **-f**, or **--file** arguments are given after **-f-** or
|
||||
equivalent is given, dc(1) will give a fatal error and exit.
|
||||
**-\-expression**, **-f**, or **-\-file** arguments are given after **-f-**
|
||||
or equivalent is given, dc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-f** *file*, **--file**=*file*
|
||||
**-f** *file*, **-\-file**=*file*
|
||||
|
||||
: Reads in *file* and evaluates it, line by line, as though it were read
|
||||
through **stdin**. If expressions are also given (see above), the
|
||||
@ -117,8 +117,8 @@ The following are the options that dc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**. However, if any other
|
||||
**-e**, **--expression**, **-f**, or **--file** arguments are given after
|
||||
as an argument at least once to **-f** or **-\-file**. However, if any other
|
||||
**-e**, **-\-expression**, **-f**, or **-\-file** arguments are given after
|
||||
**-f-** or equivalent is given, dc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
@ -906,7 +906,7 @@ follows any command that needs a register name. The only exception is a newline
|
||||
Unlike most other dc(1) implentations, this dc(1) provides nearly unlimited
|
||||
amounts of registers, if extended register mode is enabled.
|
||||
|
||||
If extended register mode is enabled (**-x** or **--extended-register**
|
||||
If extended register mode is enabled (**-x** or **-\-extended-register**
|
||||
command-line arguments are given), then normal single character registers are
|
||||
used *unless* the character immediately following a command that needs a
|
||||
register name is a space (according to **isspace()**) and not a newline
|
||||
@ -1115,17 +1115,17 @@ The other statuses will only be returned when dc(1) is not in interactive mode
|
||||
(see the **INTERACTIVE MODE** section), since dc(1) resets its state (see the
|
||||
**RESET** section) and accepts more input when one of those errors occurs in
|
||||
interactive mode. This is also the case when interactive mode is forced by the
|
||||
**-i** flag or **--interactive** option.
|
||||
**-i** flag or **-\-interactive** option.
|
||||
|
||||
These exit statuses allow dc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the **-i** flag or
|
||||
**--interactive** option.
|
||||
**-\-interactive** option.
|
||||
|
||||
# INTERACTIVE MODE
|
||||
|
||||
Like bc(1), dc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both **stdin** and **stdout**
|
||||
are hooked to a terminal, but the **-i** flag and **--interactive** option can
|
||||
are hooked to a terminal, but the **-i** flag and **-\-interactive** option can
|
||||
turn it on in other cases.
|
||||
|
||||
In interactive mode, dc(1) attempts to recover from errors (see the **RESET**
|
||||
|
||||
@ -25,18 +25,17 @@
|
||||
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
.\" POSSIBILITY OF SUCH DAMAGE.
|
||||
.\"
|
||||
.TH "DC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.TH "DC" "1" "March 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.SH Name
|
||||
.PP
|
||||
dc - arbitrary-precision decimal reverse-Polish notation calculator
|
||||
.SH SYNOPSIS
|
||||
.PP
|
||||
\f[B]dc\f[R] [\f[B]-hiPvVx\f[R]] [\f[B]\[en]version\f[R]]
|
||||
[\f[B]\[en]help\f[R]] [\f[B]\[en]interactive\f[R]]
|
||||
[\f[B]\[en]no-prompt\f[R]] [\f[B]\[en]extended-register\f[R]]
|
||||
[\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]\[en]expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]-file\f[R]=\f[I]file\f[R]\&...]
|
||||
\f[B]dc\f[R] [\f[B]-hiPvVx\f[R]] [\f[B]--version\f[R]]
|
||||
[\f[B]--help\f[R]] [\f[B]--interactive\f[R]] [\f[B]--no-prompt\f[R]]
|
||||
[\f[B]--extended-register\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]--expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]--file\f[R]=\f[I]file\f[R]\&...]
|
||||
[\f[I]file\f[R]\&...]
|
||||
.SH DESCRIPTION
|
||||
.PP
|
||||
@ -47,13 +46,13 @@ Arithmetic operations pop arguments off of the stack and push the
|
||||
results.
|
||||
.PP
|
||||
If no files are given on the command-line as extra arguments (i.e., not
|
||||
as \f[B]-f\f[R] or \f[B]\[en]file\f[R] arguments), then dc(1) reads from
|
||||
as \f[B]-f\f[R] or \f[B]--file\f[R] arguments), then dc(1) reads from
|
||||
\f[B]stdin\f[R].
|
||||
Otherwise, those files are processed, and dc(1) will then exit.
|
||||
.PP
|
||||
This is different from the dc(1) on OpenBSD and possibly other dc(1)
|
||||
implementations, where \f[B]-e\f[R] (\f[B]\[en]expression\f[R]) and
|
||||
\f[B]-f\f[R] (\f[B]\[en]file\f[R]) arguments cause dc(1) to execute them
|
||||
implementations, where \f[B]-e\f[R] (\f[B]--expression\f[R]) and
|
||||
\f[B]-f\f[R] (\f[B]--file\f[R]) arguments cause dc(1) to execute them
|
||||
and exit.
|
||||
The reason for this is that this dc(1) allows users to set arguments in
|
||||
the environment variable \f[B]DC_ENV_ARGS\f[R] (see the \f[B]ENVIRONMENT
|
||||
@ -72,13 +71,13 @@ argument or define the environment variable \f[B]DC_EXPR_EXIT\f[R].
|
||||
.PP
|
||||
The following are the options that dc(1) accepts.
|
||||
.TP
|
||||
\f[B]-h\f[R], \f[B]\[en]help\f[R]
|
||||
\f[B]-h\f[R], \f[B]--help\f[R]
|
||||
Prints a usage message and quits.
|
||||
.TP
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]\[en]version\f[R]
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]--version\f[R]
|
||||
Print the version information (copyright header) and exit.
|
||||
.TP
|
||||
\f[B]-i\f[R], \f[B]\[en]interactive\f[R]
|
||||
\f[B]-i\f[R], \f[B]--interactive\f[R]
|
||||
Forces interactive mode.
|
||||
(See the \f[B]INTERACTIVE MODE\f[R] section.)
|
||||
.RS
|
||||
@ -86,14 +85,14 @@ Forces interactive mode.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-P\f[R], \f[B]\[en]no-prompt\f[R]
|
||||
\f[B]-P\f[R], \f[B]--no-prompt\f[R]
|
||||
This option is a no-op.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-x\f[R] \f[B]\[en]extended-register\f[R]
|
||||
\f[B]-x\f[R] \f[B]--extended-register\f[R]
|
||||
Enables extended register mode.
|
||||
See the \f[I]Extended Register Mode\f[R] subsection of the
|
||||
\f[B]REGISTERS\f[R] section for more information.
|
||||
@ -102,7 +101,7 @@ See the \f[I]Extended Register Mode\f[R] subsection of the
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]\[en]expression\f[R]=\f[I]expr\f[R]
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]--expression\f[R]=\f[I]expr\f[R]
|
||||
Evaluates \f[I]expr\f[R].
|
||||
If multiple expressions are given, they are evaluated in order.
|
||||
If files are given as well (see below), the expressions and files are
|
||||
@ -115,17 +114,17 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, dc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R], whether on the command-line or in
|
||||
\f[B]DC_ENV_ARGS\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]\[en]file\f[R]=\f[I]file\f[R]
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]--file\f[R]=\f[I]file\f[R]
|
||||
Reads in \f[I]file\f[R] and evaluates it, line by line, as though it
|
||||
were read through \f[B]stdin\f[R].
|
||||
If expressions are also given (see above), the expressions are evaluated
|
||||
@ -136,9 +135,9 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, dc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
@ -1032,7 +1031,7 @@ Unlike most other dc(1) implentations, this dc(1) provides nearly
|
||||
unlimited amounts of registers, if extended register mode is enabled.
|
||||
.PP
|
||||
If extended register mode is enabled (\f[B]-x\f[R] or
|
||||
\f[B]\[en]extended-register\f[R] command-line arguments are given), then
|
||||
\f[B]--extended-register\f[R] command-line arguments are given), then
|
||||
normal single character registers are used \f[I]unless\f[R] the
|
||||
character immediately following a command that needs a register name is
|
||||
a space (according to \f[B]isspace()\f[R]) and not a newline
|
||||
@ -1255,17 +1254,17 @@ interactive mode (see the \f[B]INTERACTIVE MODE\f[R] section), since
|
||||
dc(1) resets its state (see the \f[B]RESET\f[R] section) and accepts
|
||||
more input when one of those errors occurs in interactive mode.
|
||||
This is also the case when interactive mode is forced by the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.PP
|
||||
These exit statuses allow dc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.SH INTERACTIVE MODE
|
||||
.PP
|
||||
Like bc(1), dc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both \f[B]stdin\f[R]
|
||||
and \f[B]stdout\f[R] are hooked to a terminal, but the \f[B]-i\f[R] flag
|
||||
and \f[B]\[en]interactive\f[R] option can turn it on in other cases.
|
||||
and \f[B]--interactive\f[R] option can turn it on in other cases.
|
||||
.PP
|
||||
In interactive mode, dc(1) attempts to recover from errors (see the
|
||||
\f[B]RESET\f[R] section), and in normal execution, flushes
|
||||
|
||||
@ -34,7 +34,7 @@ dc - arbitrary-precision decimal reverse-Polish notation calculator
|
||||
|
||||
# SYNOPSIS
|
||||
|
||||
**dc** [**-hiPvVx**] [**--version**] [**--help**] [**--interactive**] [**--no-prompt**] [**--extended-register**] [**-e** *expr*] [**--expression**=*expr*...] [**-f** *file*...] [**-file**=*file*...] [*file*...]
|
||||
**dc** [**-hiPvVx**] [**-\-version**] [**-\-help**] [**-\-interactive**] [**-\-no-prompt**] [**-\-extended-register**] [**-e** *expr*] [**-\-expression**=*expr*...] [**-f** *file*...] [**-\-file**=*file*...] [*file*...]
|
||||
|
||||
# DESCRIPTION
|
||||
|
||||
@ -43,11 +43,11 @@ notation) to store numbers and results of computations. Arithmetic operations
|
||||
pop arguments off of the stack and push the results.
|
||||
|
||||
If no files are given on the command-line as extra arguments (i.e., not as
|
||||
**-f** or **--file** arguments), then dc(1) reads from **stdin**. Otherwise,
|
||||
**-f** or **-\-file** arguments), then dc(1) reads from **stdin**. Otherwise,
|
||||
those files are processed, and dc(1) will then exit.
|
||||
|
||||
This is different from the dc(1) on OpenBSD and possibly other dc(1)
|
||||
implementations, where **-e** (**--expression**) and **-f** (**--file**)
|
||||
implementations, where **-e** (**-\-expression**) and **-f** (**-\-file**)
|
||||
arguments cause dc(1) to execute them and exit. The reason for this is that this
|
||||
dc(1) allows users to set arguments in the environment variable **DC_ENV_ARGS**
|
||||
(see the **ENVIRONMENT VARIABLES** section). Any expressions given on the
|
||||
@ -64,34 +64,34 @@ as the last command-line argument or define the environment variable
|
||||
|
||||
The following are the options that dc(1) accepts.
|
||||
|
||||
**-h**, **--help**
|
||||
**-h**, **-\-help**
|
||||
|
||||
: Prints a usage message and quits.
|
||||
|
||||
**-v**, **-V**, **--version**
|
||||
**-v**, **-V**, **-\-version**
|
||||
|
||||
: Print the version information (copyright header) and exit.
|
||||
|
||||
**-i**, **--interactive**
|
||||
**-i**, **-\-interactive**
|
||||
|
||||
: Forces interactive mode. (See the **INTERACTIVE MODE** section.)
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-P**, **--no-prompt**
|
||||
**-P**, **-\-no-prompt**
|
||||
|
||||
: This option is a no-op.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-x** **--extended-register**
|
||||
**-x** **-\-extended-register**
|
||||
|
||||
: Enables extended register mode. See the *Extended Register Mode* subsection
|
||||
of the **REGISTERS** section for more information.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-e** *expr*, **--expression**=*expr*
|
||||
**-e** *expr*, **-\-expression**=*expr*
|
||||
|
||||
: Evaluates *expr*. If multiple expressions are given, they are evaluated in
|
||||
order. If files are given as well (see below), the expressions and files are
|
||||
@ -101,14 +101,14 @@ The following are the options that dc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**, whether on the
|
||||
as an argument at least once to **-f** or **-\-file**, whether on the
|
||||
command-line or in **DC_ENV_ARGS**. However, if any other **-e**,
|
||||
**--expression**, **-f**, or **--file** arguments are given after **-f-** or
|
||||
equivalent is given, dc(1) will give a fatal error and exit.
|
||||
**-\-expression**, **-f**, or **-\-file** arguments are given after **-f-**
|
||||
or equivalent is given, dc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-f** *file*, **--file**=*file*
|
||||
**-f** *file*, **-\-file**=*file*
|
||||
|
||||
: Reads in *file* and evaluates it, line by line, as though it were read
|
||||
through **stdin**. If expressions are also given (see above), the
|
||||
@ -117,8 +117,8 @@ The following are the options that dc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**. However, if any other
|
||||
**-e**, **--expression**, **-f**, or **--file** arguments are given after
|
||||
as an argument at least once to **-f** or **-\-file**. However, if any other
|
||||
**-e**, **-\-expression**, **-f**, or **-\-file** arguments are given after
|
||||
**-f-** or equivalent is given, dc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
@ -906,7 +906,7 @@ follows any command that needs a register name. The only exception is a newline
|
||||
Unlike most other dc(1) implentations, this dc(1) provides nearly unlimited
|
||||
amounts of registers, if extended register mode is enabled.
|
||||
|
||||
If extended register mode is enabled (**-x** or **--extended-register**
|
||||
If extended register mode is enabled (**-x** or **-\-extended-register**
|
||||
command-line arguments are given), then normal single character registers are
|
||||
used *unless* the character immediately following a command that needs a
|
||||
register name is a space (according to **isspace()**) and not a newline
|
||||
@ -1115,17 +1115,17 @@ The other statuses will only be returned when dc(1) is not in interactive mode
|
||||
(see the **INTERACTIVE MODE** section), since dc(1) resets its state (see the
|
||||
**RESET** section) and accepts more input when one of those errors occurs in
|
||||
interactive mode. This is also the case when interactive mode is forced by the
|
||||
**-i** flag or **--interactive** option.
|
||||
**-i** flag or **-\-interactive** option.
|
||||
|
||||
These exit statuses allow dc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the **-i** flag or
|
||||
**--interactive** option.
|
||||
**-\-interactive** option.
|
||||
|
||||
# INTERACTIVE MODE
|
||||
|
||||
Like bc(1), dc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both **stdin** and **stdout**
|
||||
are hooked to a terminal, but the **-i** flag and **--interactive** option can
|
||||
are hooked to a terminal, but the **-i** flag and **-\-interactive** option can
|
||||
turn it on in other cases.
|
||||
|
||||
In interactive mode, dc(1) attempts to recover from errors (see the **RESET**
|
||||
|
||||
@ -25,18 +25,17 @@
|
||||
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
.\" POSSIBILITY OF SUCH DAMAGE.
|
||||
.\"
|
||||
.TH "DC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.TH "DC" "1" "March 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.SH Name
|
||||
.PP
|
||||
dc - arbitrary-precision decimal reverse-Polish notation calculator
|
||||
.SH SYNOPSIS
|
||||
.PP
|
||||
\f[B]dc\f[R] [\f[B]-hiPvVx\f[R]] [\f[B]\[en]version\f[R]]
|
||||
[\f[B]\[en]help\f[R]] [\f[B]\[en]interactive\f[R]]
|
||||
[\f[B]\[en]no-prompt\f[R]] [\f[B]\[en]extended-register\f[R]]
|
||||
[\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]\[en]expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]-file\f[R]=\f[I]file\f[R]\&...]
|
||||
\f[B]dc\f[R] [\f[B]-hiPvVx\f[R]] [\f[B]--version\f[R]]
|
||||
[\f[B]--help\f[R]] [\f[B]--interactive\f[R]] [\f[B]--no-prompt\f[R]]
|
||||
[\f[B]--extended-register\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]--expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]--file\f[R]=\f[I]file\f[R]\&...]
|
||||
[\f[I]file\f[R]\&...]
|
||||
.SH DESCRIPTION
|
||||
.PP
|
||||
@ -47,13 +46,13 @@ Arithmetic operations pop arguments off of the stack and push the
|
||||
results.
|
||||
.PP
|
||||
If no files are given on the command-line as extra arguments (i.e., not
|
||||
as \f[B]-f\f[R] or \f[B]\[en]file\f[R] arguments), then dc(1) reads from
|
||||
as \f[B]-f\f[R] or \f[B]--file\f[R] arguments), then dc(1) reads from
|
||||
\f[B]stdin\f[R].
|
||||
Otherwise, those files are processed, and dc(1) will then exit.
|
||||
.PP
|
||||
This is different from the dc(1) on OpenBSD and possibly other dc(1)
|
||||
implementations, where \f[B]-e\f[R] (\f[B]\[en]expression\f[R]) and
|
||||
\f[B]-f\f[R] (\f[B]\[en]file\f[R]) arguments cause dc(1) to execute them
|
||||
implementations, where \f[B]-e\f[R] (\f[B]--expression\f[R]) and
|
||||
\f[B]-f\f[R] (\f[B]--file\f[R]) arguments cause dc(1) to execute them
|
||||
and exit.
|
||||
The reason for this is that this dc(1) allows users to set arguments in
|
||||
the environment variable \f[B]DC_ENV_ARGS\f[R] (see the \f[B]ENVIRONMENT
|
||||
@ -72,13 +71,13 @@ argument or define the environment variable \f[B]DC_EXPR_EXIT\f[R].
|
||||
.PP
|
||||
The following are the options that dc(1) accepts.
|
||||
.TP
|
||||
\f[B]-h\f[R], \f[B]\[en]help\f[R]
|
||||
\f[B]-h\f[R], \f[B]--help\f[R]
|
||||
Prints a usage message and quits.
|
||||
.TP
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]\[en]version\f[R]
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]--version\f[R]
|
||||
Print the version information (copyright header) and exit.
|
||||
.TP
|
||||
\f[B]-i\f[R], \f[B]\[en]interactive\f[R]
|
||||
\f[B]-i\f[R], \f[B]--interactive\f[R]
|
||||
Forces interactive mode.
|
||||
(See the \f[B]INTERACTIVE MODE\f[R] section.)
|
||||
.RS
|
||||
@ -86,7 +85,7 @@ Forces interactive mode.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-P\f[R], \f[B]\[en]no-prompt\f[R]
|
||||
\f[B]-P\f[R], \f[B]--no-prompt\f[R]
|
||||
Disables the prompt in TTY mode.
|
||||
(The prompt is only enabled in TTY mode.
|
||||
See the \f[B]TTY MODE\f[R] section) This is mostly for those users that
|
||||
@ -98,7 +97,7 @@ Most of those users would want to put this option in
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-x\f[R] \f[B]\[en]extended-register\f[R]
|
||||
\f[B]-x\f[R] \f[B]--extended-register\f[R]
|
||||
Enables extended register mode.
|
||||
See the \f[I]Extended Register Mode\f[R] subsection of the
|
||||
\f[B]REGISTERS\f[R] section for more information.
|
||||
@ -107,7 +106,7 @@ See the \f[I]Extended Register Mode\f[R] subsection of the
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]\[en]expression\f[R]=\f[I]expr\f[R]
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]--expression\f[R]=\f[I]expr\f[R]
|
||||
Evaluates \f[I]expr\f[R].
|
||||
If multiple expressions are given, they are evaluated in order.
|
||||
If files are given as well (see below), the expressions and files are
|
||||
@ -120,17 +119,17 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, dc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R], whether on the command-line or in
|
||||
\f[B]DC_ENV_ARGS\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]\[en]file\f[R]=\f[I]file\f[R]
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]--file\f[R]=\f[I]file\f[R]
|
||||
Reads in \f[I]file\f[R] and evaluates it, line by line, as though it
|
||||
were read through \f[B]stdin\f[R].
|
||||
If expressions are also given (see above), the expressions are evaluated
|
||||
@ -141,9 +140,9 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, dc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
@ -1037,7 +1036,7 @@ Unlike most other dc(1) implentations, this dc(1) provides nearly
|
||||
unlimited amounts of registers, if extended register mode is enabled.
|
||||
.PP
|
||||
If extended register mode is enabled (\f[B]-x\f[R] or
|
||||
\f[B]\[en]extended-register\f[R] command-line arguments are given), then
|
||||
\f[B]--extended-register\f[R] command-line arguments are given), then
|
||||
normal single character registers are used \f[I]unless\f[R] the
|
||||
character immediately following a command that needs a register name is
|
||||
a space (according to \f[B]isspace()\f[R]) and not a newline
|
||||
@ -1260,17 +1259,17 @@ interactive mode (see the \f[B]INTERACTIVE MODE\f[R] section), since
|
||||
dc(1) resets its state (see the \f[B]RESET\f[R] section) and accepts
|
||||
more input when one of those errors occurs in interactive mode.
|
||||
This is also the case when interactive mode is forced by the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.PP
|
||||
These exit statuses allow dc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.SH INTERACTIVE MODE
|
||||
.PP
|
||||
Like bc(1), dc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both \f[B]stdin\f[R]
|
||||
and \f[B]stdout\f[R] are hooked to a terminal, but the \f[B]-i\f[R] flag
|
||||
and \f[B]\[en]interactive\f[R] option can turn it on in other cases.
|
||||
and \f[B]--interactive\f[R] option can turn it on in other cases.
|
||||
.PP
|
||||
In interactive mode, dc(1) attempts to recover from errors (see the
|
||||
\f[B]RESET\f[R] section), and in normal execution, flushes
|
||||
|
||||
@ -34,7 +34,7 @@ dc - arbitrary-precision decimal reverse-Polish notation calculator
|
||||
|
||||
# SYNOPSIS
|
||||
|
||||
**dc** [**-hiPvVx**] [**--version**] [**--help**] [**--interactive**] [**--no-prompt**] [**--extended-register**] [**-e** *expr*] [**--expression**=*expr*...] [**-f** *file*...] [**-file**=*file*...] [*file*...]
|
||||
**dc** [**-hiPvVx**] [**-\-version**] [**-\-help**] [**-\-interactive**] [**-\-no-prompt**] [**-\-extended-register**] [**-e** *expr*] [**-\-expression**=*expr*...] [**-f** *file*...] [**-\-file**=*file*...] [*file*...]
|
||||
|
||||
# DESCRIPTION
|
||||
|
||||
@ -43,11 +43,11 @@ notation) to store numbers and results of computations. Arithmetic operations
|
||||
pop arguments off of the stack and push the results.
|
||||
|
||||
If no files are given on the command-line as extra arguments (i.e., not as
|
||||
**-f** or **--file** arguments), then dc(1) reads from **stdin**. Otherwise,
|
||||
**-f** or **-\-file** arguments), then dc(1) reads from **stdin**. Otherwise,
|
||||
those files are processed, and dc(1) will then exit.
|
||||
|
||||
This is different from the dc(1) on OpenBSD and possibly other dc(1)
|
||||
implementations, where **-e** (**--expression**) and **-f** (**--file**)
|
||||
implementations, where **-e** (**-\-expression**) and **-f** (**-\-file**)
|
||||
arguments cause dc(1) to execute them and exit. The reason for this is that this
|
||||
dc(1) allows users to set arguments in the environment variable **DC_ENV_ARGS**
|
||||
(see the **ENVIRONMENT VARIABLES** section). Any expressions given on the
|
||||
@ -64,21 +64,21 @@ as the last command-line argument or define the environment variable
|
||||
|
||||
The following are the options that dc(1) accepts.
|
||||
|
||||
**-h**, **--help**
|
||||
**-h**, **-\-help**
|
||||
|
||||
: Prints a usage message and quits.
|
||||
|
||||
**-v**, **-V**, **--version**
|
||||
**-v**, **-V**, **-\-version**
|
||||
|
||||
: Print the version information (copyright header) and exit.
|
||||
|
||||
**-i**, **--interactive**
|
||||
**-i**, **-\-interactive**
|
||||
|
||||
: Forces interactive mode. (See the **INTERACTIVE MODE** section.)
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-P**, **--no-prompt**
|
||||
**-P**, **-\-no-prompt**
|
||||
|
||||
: Disables the prompt in TTY mode. (The prompt is only enabled in TTY mode.
|
||||
See the **TTY MODE** section) This is mostly for those users that do not
|
||||
@ -87,14 +87,14 @@ The following are the options that dc(1) accepts.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-x** **--extended-register**
|
||||
**-x** **-\-extended-register**
|
||||
|
||||
: Enables extended register mode. See the *Extended Register Mode* subsection
|
||||
of the **REGISTERS** section for more information.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-e** *expr*, **--expression**=*expr*
|
||||
**-e** *expr*, **-\-expression**=*expr*
|
||||
|
||||
: Evaluates *expr*. If multiple expressions are given, they are evaluated in
|
||||
order. If files are given as well (see below), the expressions and files are
|
||||
@ -104,14 +104,14 @@ The following are the options that dc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**, whether on the
|
||||
as an argument at least once to **-f** or **-\-file**, whether on the
|
||||
command-line or in **DC_ENV_ARGS**. However, if any other **-e**,
|
||||
**--expression**, **-f**, or **--file** arguments are given after **-f-** or
|
||||
equivalent is given, dc(1) will give a fatal error and exit.
|
||||
**-\-expression**, **-f**, or **-\-file** arguments are given after **-f-**
|
||||
or equivalent is given, dc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-f** *file*, **--file**=*file*
|
||||
**-f** *file*, **-\-file**=*file*
|
||||
|
||||
: Reads in *file* and evaluates it, line by line, as though it were read
|
||||
through **stdin**. If expressions are also given (see above), the
|
||||
@ -120,8 +120,8 @@ The following are the options that dc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**. However, if any other
|
||||
**-e**, **--expression**, **-f**, or **--file** arguments are given after
|
||||
as an argument at least once to **-f** or **-\-file**. However, if any other
|
||||
**-e**, **-\-expression**, **-f**, or **-\-file** arguments are given after
|
||||
**-f-** or equivalent is given, dc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
@ -909,7 +909,7 @@ follows any command that needs a register name. The only exception is a newline
|
||||
Unlike most other dc(1) implentations, this dc(1) provides nearly unlimited
|
||||
amounts of registers, if extended register mode is enabled.
|
||||
|
||||
If extended register mode is enabled (**-x** or **--extended-register**
|
||||
If extended register mode is enabled (**-x** or **-\-extended-register**
|
||||
command-line arguments are given), then normal single character registers are
|
||||
used *unless* the character immediately following a command that needs a
|
||||
register name is a space (according to **isspace()**) and not a newline
|
||||
@ -1118,17 +1118,17 @@ The other statuses will only be returned when dc(1) is not in interactive mode
|
||||
(see the **INTERACTIVE MODE** section), since dc(1) resets its state (see the
|
||||
**RESET** section) and accepts more input when one of those errors occurs in
|
||||
interactive mode. This is also the case when interactive mode is forced by the
|
||||
**-i** flag or **--interactive** option.
|
||||
**-i** flag or **-\-interactive** option.
|
||||
|
||||
These exit statuses allow dc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the **-i** flag or
|
||||
**--interactive** option.
|
||||
**-\-interactive** option.
|
||||
|
||||
# INTERACTIVE MODE
|
||||
|
||||
Like bc(1), dc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both **stdin** and **stdout**
|
||||
are hooked to a terminal, but the **-i** flag and **--interactive** option can
|
||||
are hooked to a terminal, but the **-i** flag and **-\-interactive** option can
|
||||
turn it on in other cases.
|
||||
|
||||
In interactive mode, dc(1) attempts to recover from errors (see the **RESET**
|
||||
|
||||
@ -25,18 +25,17 @@
|
||||
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
.\" POSSIBILITY OF SUCH DAMAGE.
|
||||
.\"
|
||||
.TH "DC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.TH "DC" "1" "March 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.SH Name
|
||||
.PP
|
||||
dc - arbitrary-precision decimal reverse-Polish notation calculator
|
||||
.SH SYNOPSIS
|
||||
.PP
|
||||
\f[B]dc\f[R] [\f[B]-hiPvVx\f[R]] [\f[B]\[en]version\f[R]]
|
||||
[\f[B]\[en]help\f[R]] [\f[B]\[en]interactive\f[R]]
|
||||
[\f[B]\[en]no-prompt\f[R]] [\f[B]\[en]extended-register\f[R]]
|
||||
[\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]\[en]expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]-file\f[R]=\f[I]file\f[R]\&...]
|
||||
\f[B]dc\f[R] [\f[B]-hiPvVx\f[R]] [\f[B]--version\f[R]]
|
||||
[\f[B]--help\f[R]] [\f[B]--interactive\f[R]] [\f[B]--no-prompt\f[R]]
|
||||
[\f[B]--extended-register\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]--expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]--file\f[R]=\f[I]file\f[R]\&...]
|
||||
[\f[I]file\f[R]\&...]
|
||||
.SH DESCRIPTION
|
||||
.PP
|
||||
@ -47,13 +46,13 @@ Arithmetic operations pop arguments off of the stack and push the
|
||||
results.
|
||||
.PP
|
||||
If no files are given on the command-line as extra arguments (i.e., not
|
||||
as \f[B]-f\f[R] or \f[B]\[en]file\f[R] arguments), then dc(1) reads from
|
||||
as \f[B]-f\f[R] or \f[B]--file\f[R] arguments), then dc(1) reads from
|
||||
\f[B]stdin\f[R].
|
||||
Otherwise, those files are processed, and dc(1) will then exit.
|
||||
.PP
|
||||
This is different from the dc(1) on OpenBSD and possibly other dc(1)
|
||||
implementations, where \f[B]-e\f[R] (\f[B]\[en]expression\f[R]) and
|
||||
\f[B]-f\f[R] (\f[B]\[en]file\f[R]) arguments cause dc(1) to execute them
|
||||
implementations, where \f[B]-e\f[R] (\f[B]--expression\f[R]) and
|
||||
\f[B]-f\f[R] (\f[B]--file\f[R]) arguments cause dc(1) to execute them
|
||||
and exit.
|
||||
The reason for this is that this dc(1) allows users to set arguments in
|
||||
the environment variable \f[B]DC_ENV_ARGS\f[R] (see the \f[B]ENVIRONMENT
|
||||
@ -72,13 +71,13 @@ argument or define the environment variable \f[B]DC_EXPR_EXIT\f[R].
|
||||
.PP
|
||||
The following are the options that dc(1) accepts.
|
||||
.TP
|
||||
\f[B]-h\f[R], \f[B]\[en]help\f[R]
|
||||
\f[B]-h\f[R], \f[B]--help\f[R]
|
||||
Prints a usage message and quits.
|
||||
.TP
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]\[en]version\f[R]
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]--version\f[R]
|
||||
Print the version information (copyright header) and exit.
|
||||
.TP
|
||||
\f[B]-i\f[R], \f[B]\[en]interactive\f[R]
|
||||
\f[B]-i\f[R], \f[B]--interactive\f[R]
|
||||
Forces interactive mode.
|
||||
(See the \f[B]INTERACTIVE MODE\f[R] section.)
|
||||
.RS
|
||||
@ -86,14 +85,14 @@ Forces interactive mode.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-P\f[R], \f[B]\[en]no-prompt\f[R]
|
||||
\f[B]-P\f[R], \f[B]--no-prompt\f[R]
|
||||
This option is a no-op.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-x\f[R] \f[B]\[en]extended-register\f[R]
|
||||
\f[B]-x\f[R] \f[B]--extended-register\f[R]
|
||||
Enables extended register mode.
|
||||
See the \f[I]Extended Register Mode\f[R] subsection of the
|
||||
\f[B]REGISTERS\f[R] section for more information.
|
||||
@ -102,7 +101,7 @@ See the \f[I]Extended Register Mode\f[R] subsection of the
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]\[en]expression\f[R]=\f[I]expr\f[R]
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]--expression\f[R]=\f[I]expr\f[R]
|
||||
Evaluates \f[I]expr\f[R].
|
||||
If multiple expressions are given, they are evaluated in order.
|
||||
If files are given as well (see below), the expressions and files are
|
||||
@ -115,17 +114,17 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, dc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R], whether on the command-line or in
|
||||
\f[B]DC_ENV_ARGS\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]\[en]file\f[R]=\f[I]file\f[R]
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]--file\f[R]=\f[I]file\f[R]
|
||||
Reads in \f[I]file\f[R] and evaluates it, line by line, as though it
|
||||
were read through \f[B]stdin\f[R].
|
||||
If expressions are also given (see above), the expressions are evaluated
|
||||
@ -136,9 +135,9 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, dc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
@ -1032,7 +1031,7 @@ Unlike most other dc(1) implentations, this dc(1) provides nearly
|
||||
unlimited amounts of registers, if extended register mode is enabled.
|
||||
.PP
|
||||
If extended register mode is enabled (\f[B]-x\f[R] or
|
||||
\f[B]\[en]extended-register\f[R] command-line arguments are given), then
|
||||
\f[B]--extended-register\f[R] command-line arguments are given), then
|
||||
normal single character registers are used \f[I]unless\f[R] the
|
||||
character immediately following a command that needs a register name is
|
||||
a space (according to \f[B]isspace()\f[R]) and not a newline
|
||||
@ -1255,17 +1254,17 @@ interactive mode (see the \f[B]INTERACTIVE MODE\f[R] section), since
|
||||
dc(1) resets its state (see the \f[B]RESET\f[R] section) and accepts
|
||||
more input when one of those errors occurs in interactive mode.
|
||||
This is also the case when interactive mode is forced by the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.PP
|
||||
These exit statuses allow dc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.SH INTERACTIVE MODE
|
||||
.PP
|
||||
Like bc(1), dc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both \f[B]stdin\f[R]
|
||||
and \f[B]stdout\f[R] are hooked to a terminal, but the \f[B]-i\f[R] flag
|
||||
and \f[B]\[en]interactive\f[R] option can turn it on in other cases.
|
||||
and \f[B]--interactive\f[R] option can turn it on in other cases.
|
||||
.PP
|
||||
In interactive mode, dc(1) attempts to recover from errors (see the
|
||||
\f[B]RESET\f[R] section), and in normal execution, flushes
|
||||
|
||||
@ -34,7 +34,7 @@ dc - arbitrary-precision decimal reverse-Polish notation calculator
|
||||
|
||||
# SYNOPSIS
|
||||
|
||||
**dc** [**-hiPvVx**] [**--version**] [**--help**] [**--interactive**] [**--no-prompt**] [**--extended-register**] [**-e** *expr*] [**--expression**=*expr*...] [**-f** *file*...] [**-file**=*file*...] [*file*...]
|
||||
**dc** [**-hiPvVx**] [**-\-version**] [**-\-help**] [**-\-interactive**] [**-\-no-prompt**] [**-\-extended-register**] [**-e** *expr*] [**-\-expression**=*expr*...] [**-f** *file*...] [**-\-file**=*file*...] [*file*...]
|
||||
|
||||
# DESCRIPTION
|
||||
|
||||
@ -43,11 +43,11 @@ notation) to store numbers and results of computations. Arithmetic operations
|
||||
pop arguments off of the stack and push the results.
|
||||
|
||||
If no files are given on the command-line as extra arguments (i.e., not as
|
||||
**-f** or **--file** arguments), then dc(1) reads from **stdin**. Otherwise,
|
||||
**-f** or **-\-file** arguments), then dc(1) reads from **stdin**. Otherwise,
|
||||
those files are processed, and dc(1) will then exit.
|
||||
|
||||
This is different from the dc(1) on OpenBSD and possibly other dc(1)
|
||||
implementations, where **-e** (**--expression**) and **-f** (**--file**)
|
||||
implementations, where **-e** (**-\-expression**) and **-f** (**-\-file**)
|
||||
arguments cause dc(1) to execute them and exit. The reason for this is that this
|
||||
dc(1) allows users to set arguments in the environment variable **DC_ENV_ARGS**
|
||||
(see the **ENVIRONMENT VARIABLES** section). Any expressions given on the
|
||||
@ -64,34 +64,34 @@ as the last command-line argument or define the environment variable
|
||||
|
||||
The following are the options that dc(1) accepts.
|
||||
|
||||
**-h**, **--help**
|
||||
**-h**, **-\-help**
|
||||
|
||||
: Prints a usage message and quits.
|
||||
|
||||
**-v**, **-V**, **--version**
|
||||
**-v**, **-V**, **-\-version**
|
||||
|
||||
: Print the version information (copyright header) and exit.
|
||||
|
||||
**-i**, **--interactive**
|
||||
**-i**, **-\-interactive**
|
||||
|
||||
: Forces interactive mode. (See the **INTERACTIVE MODE** section.)
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-P**, **--no-prompt**
|
||||
**-P**, **-\-no-prompt**
|
||||
|
||||
: This option is a no-op.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-x** **--extended-register**
|
||||
**-x** **-\-extended-register**
|
||||
|
||||
: Enables extended register mode. See the *Extended Register Mode* subsection
|
||||
of the **REGISTERS** section for more information.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-e** *expr*, **--expression**=*expr*
|
||||
**-e** *expr*, **-\-expression**=*expr*
|
||||
|
||||
: Evaluates *expr*. If multiple expressions are given, they are evaluated in
|
||||
order. If files are given as well (see below), the expressions and files are
|
||||
@ -101,14 +101,14 @@ The following are the options that dc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**, whether on the
|
||||
as an argument at least once to **-f** or **-\-file**, whether on the
|
||||
command-line or in **DC_ENV_ARGS**. However, if any other **-e**,
|
||||
**--expression**, **-f**, or **--file** arguments are given after **-f-** or
|
||||
equivalent is given, dc(1) will give a fatal error and exit.
|
||||
**-\-expression**, **-f**, or **-\-file** arguments are given after **-f-**
|
||||
or equivalent is given, dc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-f** *file*, **--file**=*file*
|
||||
**-f** *file*, **-\-file**=*file*
|
||||
|
||||
: Reads in *file* and evaluates it, line by line, as though it were read
|
||||
through **stdin**. If expressions are also given (see above), the
|
||||
@ -117,8 +117,8 @@ The following are the options that dc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**. However, if any other
|
||||
**-e**, **--expression**, **-f**, or **--file** arguments are given after
|
||||
as an argument at least once to **-f** or **-\-file**. However, if any other
|
||||
**-e**, **-\-expression**, **-f**, or **-\-file** arguments are given after
|
||||
**-f-** or equivalent is given, dc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
@ -906,7 +906,7 @@ follows any command that needs a register name. The only exception is a newline
|
||||
Unlike most other dc(1) implentations, this dc(1) provides nearly unlimited
|
||||
amounts of registers, if extended register mode is enabled.
|
||||
|
||||
If extended register mode is enabled (**-x** or **--extended-register**
|
||||
If extended register mode is enabled (**-x** or **-\-extended-register**
|
||||
command-line arguments are given), then normal single character registers are
|
||||
used *unless* the character immediately following a command that needs a
|
||||
register name is a space (according to **isspace()**) and not a newline
|
||||
@ -1115,17 +1115,17 @@ The other statuses will only be returned when dc(1) is not in interactive mode
|
||||
(see the **INTERACTIVE MODE** section), since dc(1) resets its state (see the
|
||||
**RESET** section) and accepts more input when one of those errors occurs in
|
||||
interactive mode. This is also the case when interactive mode is forced by the
|
||||
**-i** flag or **--interactive** option.
|
||||
**-i** flag or **-\-interactive** option.
|
||||
|
||||
These exit statuses allow dc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the **-i** flag or
|
||||
**--interactive** option.
|
||||
**-\-interactive** option.
|
||||
|
||||
# INTERACTIVE MODE
|
||||
|
||||
Like bc(1), dc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both **stdin** and **stdout**
|
||||
are hooked to a terminal, but the **-i** flag and **--interactive** option can
|
||||
are hooked to a terminal, but the **-i** flag and **-\-interactive** option can
|
||||
turn it on in other cases.
|
||||
|
||||
In interactive mode, dc(1) attempts to recover from errors (see the **RESET**
|
||||
|
||||
@ -25,18 +25,17 @@
|
||||
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
.\" POSSIBILITY OF SUCH DAMAGE.
|
||||
.\"
|
||||
.TH "DC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.TH "DC" "1" "March 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.SH Name
|
||||
.PP
|
||||
dc - arbitrary-precision decimal reverse-Polish notation calculator
|
||||
.SH SYNOPSIS
|
||||
.PP
|
||||
\f[B]dc\f[R] [\f[B]-hiPvVx\f[R]] [\f[B]\[en]version\f[R]]
|
||||
[\f[B]\[en]help\f[R]] [\f[B]\[en]interactive\f[R]]
|
||||
[\f[B]\[en]no-prompt\f[R]] [\f[B]\[en]extended-register\f[R]]
|
||||
[\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]\[en]expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]-file\f[R]=\f[I]file\f[R]\&...]
|
||||
\f[B]dc\f[R] [\f[B]-hiPvVx\f[R]] [\f[B]--version\f[R]]
|
||||
[\f[B]--help\f[R]] [\f[B]--interactive\f[R]] [\f[B]--no-prompt\f[R]]
|
||||
[\f[B]--extended-register\f[R]] [\f[B]-e\f[R] \f[I]expr\f[R]]
|
||||
[\f[B]--expression\f[R]=\f[I]expr\f[R]\&...] [\f[B]-f\f[R]
|
||||
\f[I]file\f[R]\&...] [\f[B]--file\f[R]=\f[I]file\f[R]\&...]
|
||||
[\f[I]file\f[R]\&...]
|
||||
.SH DESCRIPTION
|
||||
.PP
|
||||
@ -47,13 +46,13 @@ Arithmetic operations pop arguments off of the stack and push the
|
||||
results.
|
||||
.PP
|
||||
If no files are given on the command-line as extra arguments (i.e., not
|
||||
as \f[B]-f\f[R] or \f[B]\[en]file\f[R] arguments), then dc(1) reads from
|
||||
as \f[B]-f\f[R] or \f[B]--file\f[R] arguments), then dc(1) reads from
|
||||
\f[B]stdin\f[R].
|
||||
Otherwise, those files are processed, and dc(1) will then exit.
|
||||
.PP
|
||||
This is different from the dc(1) on OpenBSD and possibly other dc(1)
|
||||
implementations, where \f[B]-e\f[R] (\f[B]\[en]expression\f[R]) and
|
||||
\f[B]-f\f[R] (\f[B]\[en]file\f[R]) arguments cause dc(1) to execute them
|
||||
implementations, where \f[B]-e\f[R] (\f[B]--expression\f[R]) and
|
||||
\f[B]-f\f[R] (\f[B]--file\f[R]) arguments cause dc(1) to execute them
|
||||
and exit.
|
||||
The reason for this is that this dc(1) allows users to set arguments in
|
||||
the environment variable \f[B]DC_ENV_ARGS\f[R] (see the \f[B]ENVIRONMENT
|
||||
@ -72,13 +71,13 @@ argument or define the environment variable \f[B]DC_EXPR_EXIT\f[R].
|
||||
.PP
|
||||
The following are the options that dc(1) accepts.
|
||||
.TP
|
||||
\f[B]-h\f[R], \f[B]\[en]help\f[R]
|
||||
\f[B]-h\f[R], \f[B]--help\f[R]
|
||||
Prints a usage message and quits.
|
||||
.TP
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]\[en]version\f[R]
|
||||
\f[B]-v\f[R], \f[B]-V\f[R], \f[B]--version\f[R]
|
||||
Print the version information (copyright header) and exit.
|
||||
.TP
|
||||
\f[B]-i\f[R], \f[B]\[en]interactive\f[R]
|
||||
\f[B]-i\f[R], \f[B]--interactive\f[R]
|
||||
Forces interactive mode.
|
||||
(See the \f[B]INTERACTIVE MODE\f[R] section.)
|
||||
.RS
|
||||
@ -86,14 +85,14 @@ Forces interactive mode.
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-P\f[R], \f[B]\[en]no-prompt\f[R]
|
||||
\f[B]-P\f[R], \f[B]--no-prompt\f[R]
|
||||
This option is a no-op.
|
||||
.RS
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-x\f[R] \f[B]\[en]extended-register\f[R]
|
||||
\f[B]-x\f[R] \f[B]--extended-register\f[R]
|
||||
Enables extended register mode.
|
||||
See the \f[I]Extended Register Mode\f[R] subsection of the
|
||||
\f[B]REGISTERS\f[R] section for more information.
|
||||
@ -102,7 +101,7 @@ See the \f[I]Extended Register Mode\f[R] subsection of the
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]\[en]expression\f[R]=\f[I]expr\f[R]
|
||||
\f[B]-e\f[R] \f[I]expr\f[R], \f[B]--expression\f[R]=\f[I]expr\f[R]
|
||||
Evaluates \f[I]expr\f[R].
|
||||
If multiple expressions are given, they are evaluated in order.
|
||||
If files are given as well (see below), the expressions and files are
|
||||
@ -115,17 +114,17 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, dc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R], whether on the command-line or in
|
||||
\f[B]DC_ENV_ARGS\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
This is a \f[B]non-portable extension\f[R].
|
||||
.RE
|
||||
.TP
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]\[en]file\f[R]=\f[I]file\f[R]
|
||||
\f[B]-f\f[R] \f[I]file\f[R], \f[B]--file\f[R]=\f[I]file\f[R]
|
||||
Reads in \f[I]file\f[R] and evaluates it, line by line, as though it
|
||||
were read through \f[B]stdin\f[R].
|
||||
If expressions are also given (see above), the expressions are evaluated
|
||||
@ -136,9 +135,9 @@ If this option is given on the command-line (i.e., not in
|
||||
\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
|
||||
then after processing all expressions and files, dc(1) will exit, unless
|
||||
\f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
|
||||
\f[B]-f\f[R] or \f[B]\[en]file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
|
||||
\f[B]-f\f[R] or \f[B]--file\f[R].
|
||||
However, if any other \f[B]-e\f[R], \f[B]--expression\f[R],
|
||||
\f[B]-f\f[R], or \f[B]--file\f[R] arguments are given after
|
||||
\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
|
||||
exit.
|
||||
.PP
|
||||
@ -1032,7 +1031,7 @@ Unlike most other dc(1) implentations, this dc(1) provides nearly
|
||||
unlimited amounts of registers, if extended register mode is enabled.
|
||||
.PP
|
||||
If extended register mode is enabled (\f[B]-x\f[R] or
|
||||
\f[B]\[en]extended-register\f[R] command-line arguments are given), then
|
||||
\f[B]--extended-register\f[R] command-line arguments are given), then
|
||||
normal single character registers are used \f[I]unless\f[R] the
|
||||
character immediately following a command that needs a register name is
|
||||
a space (according to \f[B]isspace()\f[R]) and not a newline
|
||||
@ -1255,17 +1254,17 @@ interactive mode (see the \f[B]INTERACTIVE MODE\f[R] section), since
|
||||
dc(1) resets its state (see the \f[B]RESET\f[R] section) and accepts
|
||||
more input when one of those errors occurs in interactive mode.
|
||||
This is also the case when interactive mode is forced by the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.PP
|
||||
These exit statuses allow dc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the
|
||||
\f[B]-i\f[R] flag or \f[B]\[en]interactive\f[R] option.
|
||||
\f[B]-i\f[R] flag or \f[B]--interactive\f[R] option.
|
||||
.SH INTERACTIVE MODE
|
||||
.PP
|
||||
Like bc(1), dc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both \f[B]stdin\f[R]
|
||||
and \f[B]stdout\f[R] are hooked to a terminal, but the \f[B]-i\f[R] flag
|
||||
and \f[B]\[en]interactive\f[R] option can turn it on in other cases.
|
||||
and \f[B]--interactive\f[R] option can turn it on in other cases.
|
||||
.PP
|
||||
In interactive mode, dc(1) attempts to recover from errors (see the
|
||||
\f[B]RESET\f[R] section), and in normal execution, flushes
|
||||
|
||||
@ -34,7 +34,7 @@ dc - arbitrary-precision decimal reverse-Polish notation calculator
|
||||
|
||||
# SYNOPSIS
|
||||
|
||||
**dc** [**-hiPvVx**] [**--version**] [**--help**] [**--interactive**] [**--no-prompt**] [**--extended-register**] [**-e** *expr*] [**--expression**=*expr*...] [**-f** *file*...] [**-file**=*file*...] [*file*...]
|
||||
**dc** [**-hiPvVx**] [**-\-version**] [**-\-help**] [**-\-interactive**] [**-\-no-prompt**] [**-\-extended-register**] [**-e** *expr*] [**-\-expression**=*expr*...] [**-f** *file*...] [**-\-file**=*file*...] [*file*...]
|
||||
|
||||
# DESCRIPTION
|
||||
|
||||
@ -43,11 +43,11 @@ notation) to store numbers and results of computations. Arithmetic operations
|
||||
pop arguments off of the stack and push the results.
|
||||
|
||||
If no files are given on the command-line as extra arguments (i.e., not as
|
||||
**-f** or **--file** arguments), then dc(1) reads from **stdin**. Otherwise,
|
||||
**-f** or **-\-file** arguments), then dc(1) reads from **stdin**. Otherwise,
|
||||
those files are processed, and dc(1) will then exit.
|
||||
|
||||
This is different from the dc(1) on OpenBSD and possibly other dc(1)
|
||||
implementations, where **-e** (**--expression**) and **-f** (**--file**)
|
||||
implementations, where **-e** (**-\-expression**) and **-f** (**-\-file**)
|
||||
arguments cause dc(1) to execute them and exit. The reason for this is that this
|
||||
dc(1) allows users to set arguments in the environment variable **DC_ENV_ARGS**
|
||||
(see the **ENVIRONMENT VARIABLES** section). Any expressions given on the
|
||||
@ -64,34 +64,34 @@ as the last command-line argument or define the environment variable
|
||||
|
||||
The following are the options that dc(1) accepts.
|
||||
|
||||
**-h**, **--help**
|
||||
**-h**, **-\-help**
|
||||
|
||||
: Prints a usage message and quits.
|
||||
|
||||
**-v**, **-V**, **--version**
|
||||
**-v**, **-V**, **-\-version**
|
||||
|
||||
: Print the version information (copyright header) and exit.
|
||||
|
||||
**-i**, **--interactive**
|
||||
**-i**, **-\-interactive**
|
||||
|
||||
: Forces interactive mode. (See the **INTERACTIVE MODE** section.)
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-P**, **--no-prompt**
|
||||
**-P**, **-\-no-prompt**
|
||||
|
||||
: This option is a no-op.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-x** **--extended-register**
|
||||
**-x** **-\-extended-register**
|
||||
|
||||
: Enables extended register mode. See the *Extended Register Mode* subsection
|
||||
of the **REGISTERS** section for more information.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-e** *expr*, **--expression**=*expr*
|
||||
**-e** *expr*, **-\-expression**=*expr*
|
||||
|
||||
: Evaluates *expr*. If multiple expressions are given, they are evaluated in
|
||||
order. If files are given as well (see below), the expressions and files are
|
||||
@ -101,14 +101,14 @@ The following are the options that dc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**, whether on the
|
||||
as an argument at least once to **-f** or **-\-file**, whether on the
|
||||
command-line or in **DC_ENV_ARGS**. However, if any other **-e**,
|
||||
**--expression**, **-f**, or **--file** arguments are given after **-f-** or
|
||||
equivalent is given, dc(1) will give a fatal error and exit.
|
||||
**-\-expression**, **-f**, or **-\-file** arguments are given after **-f-**
|
||||
or equivalent is given, dc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
|
||||
**-f** *file*, **--file**=*file*
|
||||
**-f** *file*, **-\-file**=*file*
|
||||
|
||||
: Reads in *file* and evaluates it, line by line, as though it were read
|
||||
through **stdin**. If expressions are also given (see above), the
|
||||
@ -117,8 +117,8 @@ The following are the options that dc(1) accepts.
|
||||
If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
|
||||
see the **ENVIRONMENT VARIABLES** section), then after processing all
|
||||
expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
|
||||
as an argument at least once to **-f** or **--file**. However, if any other
|
||||
**-e**, **--expression**, **-f**, or **--file** arguments are given after
|
||||
as an argument at least once to **-f** or **-\-file**. However, if any other
|
||||
**-e**, **-\-expression**, **-f**, or **-\-file** arguments are given after
|
||||
**-f-** or equivalent is given, dc(1) will give a fatal error and exit.
|
||||
|
||||
This is a **non-portable extension**.
|
||||
@ -906,7 +906,7 @@ follows any command that needs a register name. The only exception is a newline
|
||||
Unlike most other dc(1) implentations, this dc(1) provides nearly unlimited
|
||||
amounts of registers, if extended register mode is enabled.
|
||||
|
||||
If extended register mode is enabled (**-x** or **--extended-register**
|
||||
If extended register mode is enabled (**-x** or **-\-extended-register**
|
||||
command-line arguments are given), then normal single character registers are
|
||||
used *unless* the character immediately following a command that needs a
|
||||
register name is a space (according to **isspace()**) and not a newline
|
||||
@ -1115,17 +1115,17 @@ The other statuses will only be returned when dc(1) is not in interactive mode
|
||||
(see the **INTERACTIVE MODE** section), since dc(1) resets its state (see the
|
||||
**RESET** section) and accepts more input when one of those errors occurs in
|
||||
interactive mode. This is also the case when interactive mode is forced by the
|
||||
**-i** flag or **--interactive** option.
|
||||
**-i** flag or **-\-interactive** option.
|
||||
|
||||
These exit statuses allow dc(1) to be used in shell scripting with error
|
||||
checking, and its normal behavior can be forced by using the **-i** flag or
|
||||
**--interactive** option.
|
||||
**-\-interactive** option.
|
||||
|
||||
# INTERACTIVE MODE
|
||||
|
||||
Like bc(1), dc(1) has an interactive mode and a non-interactive mode.
|
||||
Interactive mode is turned on automatically when both **stdin** and **stdout**
|
||||
are hooked to a terminal, but the **-i** flag and **--interactive** option can
|
||||
are hooked to a terminal, but the **-i** flag and **-\-interactive** option can
|
||||
turn it on in other cases.
|
||||
|
||||
In interactive mode, dc(1) attempts to recover from errors (see the **RESET**
|
||||
|
||||
@ -1 +1 @@
|
||||
.TH "BC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.TH "BC" "1" "March 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
|
||||
@ -1 +1 @@
|
||||
.TH "BCL" "3" "February 2021" "Gavin D. Howard" "Libraries Manual"
|
||||
.TH "BCL" "3" "March 2021" "Gavin D. Howard" "Libraries Manual"
|
||||
|
||||
@ -1 +1 @@
|
||||
.TH "DC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
.TH "DC" "1" "March 2021" "Gavin D. Howard" "General Commands Manual"
|
||||
|
||||
@ -2138,7 +2138,7 @@ size_t bc_num_len(const BcNum *restrict n) {
|
||||
|
||||
size_t len = n->len;
|
||||
|
||||
if (BC_NUM_ZERO(n)) return 0;
|
||||
if (BC_NUM_ZERO(n)) return n->scale ? n->scale : 1;
|
||||
|
||||
if (BC_NUM_RDX_VAL(n) == len) {
|
||||
|
||||
|
||||
@ -1,4 +1,7 @@
|
||||
length(0)
|
||||
length(0.0000)
|
||||
length(0.00000000)
|
||||
length(0.00000000000)
|
||||
length(1)
|
||||
length(12)
|
||||
length(123)
|
||||
|
||||
@ -1,4 +1,7 @@
|
||||
0
|
||||
1
|
||||
4
|
||||
8
|
||||
11
|
||||
1
|
||||
2
|
||||
3
|
||||
|
||||
@ -84,6 +84,12 @@ cbrt(27)
|
||||
cbrt(-27)
|
||||
cbrt(4096)
|
||||
cbrt(-4096)
|
||||
root(0, 3)
|
||||
root(0, 4)
|
||||
root(0, 5)
|
||||
root(0.0000000000000, 3)
|
||||
root(0.0000000000000, 4)
|
||||
root(0.0000000000000, 5)
|
||||
root(16, 4)
|
||||
root(3125, 5)
|
||||
root(-3125, 5)
|
||||
|
||||
@ -84,6 +84,12 @@
|
||||
-3.00000000000000000000
|
||||
16.00000000000000000000
|
||||
-16.00000000000000000000
|
||||
0
|
||||
0
|
||||
0
|
||||
0
|
||||
0
|
||||
0
|
||||
2.00000000000000000000
|
||||
5.00000000000000000000
|
||||
-5.00000000000000000000
|
||||
|
||||
@ -15,8 +15,9 @@ t[11] = -1.74
|
||||
t[12] = -2
|
||||
t[13] = -3.2345
|
||||
t[14] = -100
|
||||
t[15] = 0.0000000000000000
|
||||
|
||||
l = 15
|
||||
l = 16
|
||||
|
||||
a[0] = t[0]
|
||||
|
||||
@ -30,7 +31,11 @@ l -= 1
|
||||
|
||||
for (i = 0; i < l; ++i) {
|
||||
for (j = 0; j < l; ++j) {
|
||||
print "j(", a[i], ", ", a[j], ")\n"
|
||||
print "j(", a[i]
|
||||
if (a[i] == 0 && scale(a[i]) > 0) print ".0000000000000000"
|
||||
print ", ", a[j]
|
||||
if (a[j] == 0 && scale(a[j]) > 0) print ".0000000000000000"
|
||||
print ")\n"
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
@ -1,4 +1,5 @@
|
||||
decimal
|
||||
length
|
||||
add
|
||||
subtract
|
||||
multiply
|
||||
|
||||
129
contrib/bc/tests/dc/length.txt
Normal file
129
contrib/bc/tests/dc/length.txt
Normal file
@ -0,0 +1,129 @@
|
||||
0ZpR
|
||||
0.0000ZpR
|
||||
0.00000000ZpR
|
||||
0.00000000000ZpR
|
||||
1ZpR
|
||||
12ZpR
|
||||
123ZpR
|
||||
1234ZpR
|
||||
12345ZpR
|
||||
123456ZpR
|
||||
1234567ZpR
|
||||
12345678ZpR
|
||||
123456789ZpR
|
||||
1234567890ZpR
|
||||
1.0ZpR
|
||||
12.0ZpR
|
||||
123.0ZpR
|
||||
1234.0ZpR
|
||||
12345.0ZpR
|
||||
123456.0ZpR
|
||||
1234567.0ZpR
|
||||
12345678.0ZpR
|
||||
123456789.0ZpR
|
||||
1234567890.0ZpR
|
||||
.1ZpR
|
||||
.12ZpR
|
||||
.123ZpR
|
||||
.1234ZpR
|
||||
.12345ZpR
|
||||
.123456ZpR
|
||||
.1234567ZpR
|
||||
.12345678ZpR
|
||||
.123456789ZpR
|
||||
.1234567890ZpR
|
||||
.01ZpR
|
||||
.012ZpR
|
||||
.0123ZpR
|
||||
.01234ZpR
|
||||
.012345ZpR
|
||||
.0123456ZpR
|
||||
.01234567ZpR
|
||||
.012345678ZpR
|
||||
.0123456789ZpR
|
||||
.01234567890ZpR
|
||||
.001ZpR
|
||||
.0012ZpR
|
||||
.00123ZpR
|
||||
.001234ZpR
|
||||
.0012345ZpR
|
||||
.00123456ZpR
|
||||
.001234567ZpR
|
||||
.0012345678ZpR
|
||||
.00123456789ZpR
|
||||
.001234567890ZpR
|
||||
.0001ZpR
|
||||
.00012ZpR
|
||||
.000123ZpR
|
||||
.0001234ZpR
|
||||
.00012345ZpR
|
||||
.000123456ZpR
|
||||
.0001234567ZpR
|
||||
.00012345678ZpR
|
||||
.000123456789ZpR
|
||||
.0001234567890ZpR
|
||||
.00001ZpR
|
||||
.000012ZpR
|
||||
.0000123ZpR
|
||||
.00001234ZpR
|
||||
.000012345ZpR
|
||||
.0000123456ZpR
|
||||
.00001234567ZpR
|
||||
.000012345678ZpR
|
||||
.0000123456789ZpR
|
||||
.00001234567890ZpR
|
||||
.000001ZpR
|
||||
.0000012ZpR
|
||||
.00000123ZpR
|
||||
.000001234ZpR
|
||||
.0000012345ZpR
|
||||
.00000123456ZpR
|
||||
.000001234567ZpR
|
||||
.0000012345678ZpR
|
||||
.00000123456789ZpR
|
||||
.000001234567890ZpR
|
||||
.0000001ZpR
|
||||
.00000012ZpR
|
||||
.000000123ZpR
|
||||
.0000001234ZpR
|
||||
.00000012345ZpR
|
||||
.000000123456ZpR
|
||||
.0000001234567ZpR
|
||||
.00000012345678ZpR
|
||||
.000000123456789ZpR
|
||||
.0000001234567890ZpR
|
||||
.00000001ZpR
|
||||
.000000012ZpR
|
||||
.0000000123ZpR
|
||||
.00000001234ZpR
|
||||
.000000012345ZpR
|
||||
.0000000123456ZpR
|
||||
.00000001234567ZpR
|
||||
.000000012345678ZpR
|
||||
.0000000123456789ZpR
|
||||
.00000001234567890ZpR
|
||||
.000000001ZpR
|
||||
.0000000012ZpR
|
||||
.00000000123ZpR
|
||||
.000000001234ZpR
|
||||
.0000000012345ZpR
|
||||
.00000000123456ZpR
|
||||
.000000001234567ZpR
|
||||
.0000000012345678ZpR
|
||||
.00000000123456789ZpR
|
||||
.000000001234567890ZpR
|
||||
.0000000001ZpR
|
||||
.00000000012ZpR
|
||||
.000000000123ZpR
|
||||
.0000000001234ZpR
|
||||
.00000000012345ZpR
|
||||
.000000000123456ZpR
|
||||
.0000000001234567ZpR
|
||||
.00000000012345678ZpR
|
||||
.000000000123456789ZpR
|
||||
.0000000001234567890ZpR
|
||||
289.29837ZpR
|
||||
2893.00000ZpR
|
||||
289.0ZpR
|
||||
1802973.0000000238ZpR
|
||||
.000000000000000093182394080000000000ZpR
|
||||
129
contrib/bc/tests/dc/length_results.txt
Normal file
129
contrib/bc/tests/dc/length_results.txt
Normal file
@ -0,0 +1,129 @@
|
||||
1
|
||||
4
|
||||
8
|
||||
11
|
||||
1
|
||||
2
|
||||
3
|
||||
4
|
||||
5
|
||||
6
|
||||
7
|
||||
8
|
||||
9
|
||||
10
|
||||
2
|
||||
3
|
||||
4
|
||||
5
|
||||
6
|
||||
7
|
||||
8
|
||||
9
|
||||
10
|
||||
11
|
||||
1
|
||||
2
|
||||
3
|
||||
4
|
||||
5
|
||||
6
|
||||
7
|
||||
8
|
||||
9
|
||||
10
|
||||
1
|
||||
2
|
||||
3
|
||||
4
|
||||
5
|
||||
6
|
||||
7
|
||||
8
|
||||
9
|
||||
10
|
||||
1
|
||||
2
|
||||
3
|
||||
4
|
||||
5
|
||||
6
|
||||
7
|
||||
8
|
||||
9
|
||||
10
|
||||
1
|
||||
2
|
||||
3
|
||||
4
|
||||
5
|
||||
6
|
||||
7
|
||||
8
|
||||
9
|
||||
10
|
||||
1
|
||||
2
|
||||
3
|
||||
4
|
||||
5
|
||||
6
|
||||
7
|
||||
8
|
||||
9
|
||||
10
|
||||
1
|
||||
2
|
||||
3
|
||||
4
|
||||
5
|
||||
6
|
||||
7
|
||||
8
|
||||
9
|
||||
10
|
||||
1
|
||||
2
|
||||
3
|
||||
4
|
||||
5
|
||||
6
|
||||
7
|
||||
8
|
||||
9
|
||||
10
|
||||
1
|
||||
2
|
||||
3
|
||||
4
|
||||
5
|
||||
6
|
||||
7
|
||||
8
|
||||
9
|
||||
10
|
||||
1
|
||||
2
|
||||
3
|
||||
4
|
||||
5
|
||||
6
|
||||
7
|
||||
8
|
||||
9
|
||||
10
|
||||
1
|
||||
2
|
||||
3
|
||||
4
|
||||
5
|
||||
6
|
||||
7
|
||||
8
|
||||
9
|
||||
10
|
||||
8
|
||||
9
|
||||
4
|
||||
17
|
||||
20
|
||||
Loading…
Reference in New Issue
Block a user