Commit Graph

94 Commits

Author SHA1 Message Date
Hartmut Brandt
4ce3340f48 Major clean up and split the Var_Parse monster function into three
functions: one for the single letter variables, one for the others
and one that does the recursive expansion.

Patches:	7.68-7.79

Submitted by:	Max Okumoto <okumoto@ucsd.edu>
2005-02-26 08:54:40 +00:00
Hartmut Brandt
179078e76d Change the return value of Var_Subst to return a Buffer instead
of a char *.

Patch:		7.49

Submitted by:	Max Okumoto <okumoto@ucsd.edu>
2005-02-25 13:16:56 +00:00
Hartmut Brandt
d057118357 Var_Parse: Separate different error states by introducing an else block
after a return. Move assignments to {freePtr, dynamic, start} closer to the
return statements to clarify which variables are actually used for
communication between the losely coupled blocks of the code. Clear up
an if-expression to make common structures of the conditions clearer.
Use strchr instead of switch statements to check for a character beeing
a member of a set.

Patches:	7-62.2, 7-62.3, 7-64, 7-65.1, 7-65.2
Submitted by:	Max Okumoto <okumoto@ucsd.edu>
2005-02-24 16:05:45 +00:00
Hartmut Brandt
a65e9283c5 Push assignments to just before the returns from the function to
get it clearer what variables are actually needed.

Patches:	7.62.2, 7.62.3
Submitted by:	Max Okumoto <okumoto@ucsd.edu>
2005-02-24 10:35:39 +00:00
Hartmut Brandt
0cb1c98b7a Fix wording of a comment.
Submitted by:	Max Okumoto <okumoto@ucsd.edu>
2005-02-24 10:30:23 +00:00
Hartmut Brandt
6abaece6ae Forgot to set *freePtr to FALSE in another place.
Submitted by:	Max Okumoto <okumoto@ucsd.edu>
2005-02-21 08:10:21 +00:00
Hartmut Brandt
7f2e1af188 Push the assignments of some variables down into the sub-blocks where
it is actually needed. This makes clear in which subblocks the variables
are not needed and which can easier be split out.

Submitted by:	Max Okumoto <okumoto@ucsd.edu>
2005-02-18 15:32:06 +00:00
Hartmut Brandt
1aaa4432a5 Push down variables into local scope in Var_Parse to make their
liveness clear for splitting up this monster function.

Submitted by:	Max Okumoto <okumoto@ucsd.edu>
2005-02-18 07:33:43 +00:00
Hartmut Brandt
5fdd47f89b Whitespace cleanup: substitute mixed tabs and spaces by canonical
whitespace and line up some variable definitions.
2005-02-17 12:35:32 +00:00
Hartmut Brandt
b2a8c56e3a Move error case to begin of if-else chain. Do not needless initialize
startc, but only at the place where the initialisation is needed. Remove
a needless else.

Submitted by:	Max Okumoto <okumoto@ucsd.edu> (partly)
2005-02-17 12:31:53 +00:00
Hartmut Brandt
768820f8c7 Sort out the error case that a single '$' was passed a little bit
earlier instead of mixing its handling with other cases.

Submitted by:	Max Okumoto <okumoto@ucsd.edu>
2005-02-17 09:01:19 +00:00
Hartmut Brandt
40fe2aa311 Convert several instances of negative logic to positive logic.
Submitted by:	Max Okumoto <okumoto@ucsd.edu>
2005-02-11 10:49:01 +00:00
Hartmut Brandt
26478079f7 Buffers are already NUL-terminated so there is no need to explicitely add
a NULL.

Submitted by:	Max Okumoto <okumoto@ucsd.edu>
2005-02-10 17:01:46 +00:00
Hartmut Brandt
ed293d7304 Mostly stylistic nits in preparation for splitting up Var_Parse:
use a more consistent style with regard to *str and str[0];
simplify code by introducing a temporary variable;
shift a break around and add braces where appropriate.

Submitted by:	Max Okumoto <okumoto@ucsd.edu>
2005-02-10 17:00:16 +00:00
Hartmut Brandt
42e4f1252b Let the buffer just use the default size by specifying 0 as the size
instead of specifying the default size explicitely.

Submitted by:	Max Okumoto <okumoto@ucsd.edu>
2005-02-10 14:53:29 +00:00
Hartmut Brandt
c738c9b125 Mark the modification of the input string (which should really be const)
with a comment.

Submitted by:	Max Okumoto <okumoto@ucsd.edu>
2005-02-10 14:52:14 +00:00
Hartmut Brandt
302288aba2 Style nits:
Move some assignments nearer to where they actually used. Convert a loop
from a for() to a while() to make it clearer and add braces to the long
body of it. Split assignment from variable declaration.

Submitted by:	Max Okumoto <okumoto@ucsd.edu>
2005-02-10 14:50:34 +00:00
Hartmut Brandt
d2bda84a20 Describe a pre-condition of Var_Parse().
Submitted by:	Max Okumoto <okumoto@ucsd.edu>
2005-02-10 14:43:22 +00:00
Hartmut Brandt
f804a7b3b1 Remove a comment that's not actual anymore.
Submitted by:	Max Okumoto <okumoto@ucsd.edu>
2005-02-10 14:41:22 +00:00
Hartmut Brandt
5cb05d7962 Fix spacing by converting mixes of space and tab to tab. Also add a number
of empty lines in appropriate places.

Submitted by:	Max Okumoto <okumoto@ucsd.edu>
2005-02-10 14:39:05 +00:00
Hartmut Brandt
2890fef88d Use defines for character constants for open and closing braces and
parantheses. This helps editors to find its way through the horrible
mess of Var_Parse. Rewrite a for() loop into a while() to make it clearer.

Submitted by:	Max Okumoto <okumoto@ucsd.edu>
2005-02-09 18:44:09 +00:00
Hartmut Brandt
f2b48f62c6 Untangle VarFind and, while rewriting most of the function, fix the
intendation. (A large part of the function was already at intendation 8).
2005-02-09 13:13:59 +00:00
Hartmut Brandt
3f18a493f4 Introduce VarCreate and VarDestroy functions and used them where
appropriate.

Submitted by:	Max Okumoto <okumoto@ucsd.edu>
2005-02-09 09:53:28 +00:00
Hartmut Brandt
76749b8672 Remove an unneeded check. 2005-02-07 16:33:57 +00:00
Hartmut Brandt
9be6b372de Introduce a typedef for variable value modifation functions and use it
where appropriate.

Submitted by:	Max Okumoto <okumoto@ucsd.edu>
2005-02-07 16:27:19 +00:00
Hartmut Brandt
b3c3341784 Make the intention of a loop clearer.
Submitted by:	Max Okumoto <okumoto@ucsd.edu>
2005-02-07 15:51:51 +00:00
Hartmut Brandt
46ca434737 Introduce Buf_StripNewLines() and use it where appropriate.
Submitted by:	Max Okumoto <okumoto@ucsd.edu>
2005-02-07 11:27:47 +00:00
Hartmut Brandt
ae9eed1281 Invent a Buf_AppendRange function that appends a non-NUL-terminated string
given by a pointer to the start of the string and a pointer one behind
the end.

Submitted by:	Max Okumoto <okumoto@ucsd.edu>
2005-02-07 07:54:23 +00:00
Hartmut Brandt
d01d6678ad Invent a Buf_Append function to append a NUL-terminated string
and use it thoughout the code.

Submitted by:	Max Okumoto <okumoto@ucsd.edu>
2005-02-07 07:49:16 +00:00
Hartmut Brandt
b8900c134b None of the users of Buf_Discard used it to get rid of only a part of
the buffer. So replace Buf_Discard by Buf_Clear which just gets rid
of the entire contents.

Submitted by:	Max Okumoto <okumoto@ucsd.edu>
2005-02-04 13:34:16 +00:00
Hartmut Brandt
ce8c7083f4 General whitespace cleanup: remove mixes of tabs and spaces, remove
space after function names, remove spaces on emtpy lines.

Submitted by:	Max Okumoto <okumoto@ucsd.edu>
2005-02-04 12:38:57 +00:00
Hartmut Brandt
acd5b69dd1 Further constification. Use a temporary hack (copying the input string)
until Var_Subst is fixed.

Submitted by:	Max Okumoto <okumoto@ucsd.edu>
2005-02-04 12:10:20 +00:00
Hartmut Brandt
8cfa18d178 Use an extra variable to assign to instead of missusing an input
parameter. This will help in constification.

Submitted by:	Max Okumoto <okumoto@ucsd.edu>
2005-02-04 08:31:42 +00:00
Hartmut Brandt
e23bc3a201 Some more easy constification.
Submitted by:	Max Okumoto <okumoto@ucsd.edu>
2005-02-04 07:51:00 +00:00
Hartmut Brandt
ab9e1eb050 Convert several typedefs from beeing pointers to structs to be the structs
itself. This will ease constification (think of what 'const Ptr foo'
means if Ptr is a pointer to a struct).

Submitted by:	Max Okumoto <okumoto@ucsd.edu>
2005-02-02 07:36:18 +00:00
Hartmut Brandt
7a2029bac2 Clean up include files and file including. Split nonints.h into pieces
that get included just where they are needed. All headers include the
headers that they need to compile (just with an empty .c file). Sort
includes alphabetically where apropriate and fix some duplicate commenting
for struct Job, struct GNode and struct Shell by removing one version and
inlining the comments into the structure declaration (the comments have been
somewhat outdated).

This patch does not contain functional changes (checked with md5).

Submitted by:	Max Okumoto <okumoto@ucsd.edu>
2005-02-01 10:50:37 +00:00
Hartmut Brandt
674a77f864 Remove all the cleanup functions. There is no reason to free memory
just before exiting (especially given the number of memory leaks) -
it just costs time.
2004-12-17 13:20:19 +00:00
Hartmut Brandt
1d614caea7 Instead of dynamically allocating list heads allocated them statically
now that their size is only two pointers. This eliminates a lot of calls
to Lst_Init and from there to malloc together with many calls to
Lst_Destroy (in places where the list is obviously empty). This also
reduces the chance to leave a list uninitilized so we can remove more
NULL pointer checks and probably eliminates a couple of memory leaks.
2004-12-16 16:14:16 +00:00
Hartmut Brandt
54bb820a75 Remove a list that was just used to free all variables just before exiting. 2004-12-10 11:58:34 +00:00
Hartmut Brandt
db7ce92a3c Constify the arguments to the list compare function. This temporarily
requires to make a copy of the filename in ReadMakefile and to duplicate
two small functions in suff.c. This hopefully will go away when everything
is constified.

Submitted by:	Max Okumoto <okumoto@ucsd.edu> (partly)
2004-12-08 12:59:27 +00:00
Hartmut Brandt
bf1ead0608 Typedefs of pointers to structs are evil. Make Lst and LstNode typedef of
the structs itself not of pointers to them. This will simplify constification.

Checked by: diff on the object files
2004-12-07 13:49:13 +00:00
Hartmut Brandt
644a6874f9 Make needs no circular lists so remove them from the list code. 2004-12-07 10:14:16 +00:00
Hartmut Brandt
a8b951bb30 Fix breakage introduced on 64-bit platforms with my last commit. Need
to change to size_t in a couple of other places too.
2004-12-03 12:55:57 +00:00
Hartmut Brandt
db397f6ffe Plug a memory leak. 2004-12-03 12:07:03 +00:00
Hartmut Brandt
d21474cec4 Style: remove a lot of unnecessary casts, add some and spell the null
pointer constant as NULL.

Checked by: diff -r on the object files before and after
2004-12-01 10:29:20 +00:00
Hartmut Brandt
e6417f6fe2 Stylification: missing spaces, extra space after function names, casts
and the sizeof operator, missing empty lines, void casts, extra empty lines.

Checked by: diff on make *.o lst.lib/*.o

Submitted by:	Max Okumoto <okumoto@soe.ucsd.edu> (partly)
2004-11-30 17:46:29 +00:00
Hartmut Brandt
313745d2ad Put variable assignments on .MAKEFLAGS and .MFLAGS targets into
the .MAKEFLAGS variable so that these are also passed to sub-makes.
This makes the handling of variables in the command environment more
consistent.

PR:		bin/68853
Submitted by:	Martin Kamerhofer <data@sbox.tugraz.at>
2004-08-12 11:49:55 +00:00
Hartmut Brandt
d98bc4ce72 Put variable assignments from the command line into the MAKEFLAGS
variable as required by POSIX. This causes such variables to be
pushed into all sub-makes called by the make (except when the MAKEFLAGS
variable is explicitely changed in the sub-make's environment).
This makes them also mostly un-overrideable in sub-makes except on the
sub-make's command line. Therefor specifying 'make CC=icc' will cause
icc to be used as C compiler in all sub-makes no matter what the Makefiles
itself try to do to the CC variable.

This patch also corrects the handling of the MFLAGS variable. MFLAGS
contains all the command line flags but not the command line variable
assignments. The evaluation of the .MFLAGS or .MAKEFLAGS target now
changes both MFLAGS and MAKEFLAGS (they used to change MAKEFLAGS only).
Makefiles can use MFLAGS for their own purposes given that they do not
except MFLAGS to be undefined at the beginning and that they don't evaluate
.MFLAGS or .MAKEFLAGS. MFLAGS should be removed for POSIX compliance,
but it is unfortunately heavily used by the X makefiles.

This has been extensively tested by port builds (thanks to portmgr), new
worlds and kernels.

PR:		standards/57295 (1st part above)
Submitted by:	James E. Flemer <jflemer@alum.rpi.edu>
Approved by:	portmgr
Obtained from:	NetBSD (1st part above)
MFC after:	4 weeks
2004-08-03 18:56:31 +00:00
Hartmut Brandt
10a527618c Allow variable substitutions in SYSV variable substitutions like
$(SRC:.c=$O). This brings us closer to other makes.

Reviewed by:	ru
Obtained from:	NetBSD
2004-01-12 10:35:46 +00:00
Ruslan Ermilov
1c43e2766b Moved the code for :U and :L modifiers where it belongs, so that
the fallback for SysV (now in POSIX) variable substitution works
for old_string arguments starting with 'U' or 'L'.
2004-01-10 16:30:29 +00:00