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Partial merge of man page cleanups from NetBSD:

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revision 1.91
  Fri Nov 7 01:01:46 2003 UTC by lukem

  Add some subsections in the VARIABLE ASSIGNMENTS section.

  In the "modifier description" list, show each modifier with the leading `:'.
  Rationale: it's hard to search for modifiers without it, and we already do
  the same thing in the -options and .makecommands lists.  I now find it much
  easier to find the description for a modifier in the man page.

Obtained from: NetBSD
This commit is contained in:
rodrigc 2010-01-27 02:38:10 +00:00
parent 0e7685cf23
commit e086cdc47b
1 changed files with 16 additions and 16 deletions
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32
usr.bin/make/make.1
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@ -852,7 +852,7 @@ These directories will be searched for source files by
.Nm
after it has finished parsing all input makefiles.
.El
.Pp
.Ss Variable modifiers
Variable expansion may be modified to select or modify each word of the
variable (where a
.Dq word
@ -867,7 +867,7 @@ The colon may be escaped with a backslash
.Pq Ql \e .
.Bl -tag -width Cm
.Sm off
.It Cm C No / Ar pattern Xo
.It Cm \&:C No / Ar pattern Xo
.No / Ar replacement
.No / Op Cm 1g
.Xc
@ -896,13 +896,13 @@ and
are orthogonal; the former specifies whether multiple words are
potentially affected, the latter whether multiple substitutions can
potentially occur within each affected word.
.It Cm E
.It Cm \&:E
Replaces each word in the variable with its suffix.
.It Cm H
.It Cm \&:H
Replaces each word in the variable with everything but the last component.
.It Cm L
.It Cm \&:L
Converts variable to lower-case letters.
.It Cm M Ns Ar pattern
.It Cm \&:M Ns Ar pattern
Select only those words that match the rest of the modifier.
The standard shell wildcard characters
.Pf ( Ql * ,
@ -913,21 +913,21 @@ may
be used.
The wildcard characters may be escaped with a backslash
.Pq Ql \e .
.It Cm N Ns Ar pattern
.It Cm \&:N Ns Ar pattern
This is identical to
.Cm M ,
.Cm \&:M ,
but selects all words which do not match
the rest of the modifier.
.It Cm O
.It Cm \&:O
Order every word in the variable alphabetically.
.It Cm Q
.It Cm \&:Q
Quotes every shell meta-character in the variable, so that it can be passed
safely through recursive invocations of
.Nm .
.It Cm R
.It Cm \&:R
Replaces each word in the variable with everything but its suffix.
.Sm off
.It Cm S No / Ar old_string Xo
.It Cm \&:S No / Ar old_string Xo
.No / Ar new_string
.No / Op Cm g
.Xc
@ -971,7 +971,7 @@ with the single exception that a backslash is used to prevent the expansion
of a dollar sign
.Pq Ql $ ,
not a preceding dollar sign as is usual.
.It Ar old_string=new_string
.It Ar :old_string=new_string
This is the
.At V
style variable substitution.
@ -991,11 +991,11 @@ is the substring of
.Ar old_string
to be replaced in
.Ar new_string
.It Cm T
.It Cm \&:T
Replaces each word in the variable with its last component.
.It Cm U
.It Cm \&:U
Converts variable to upper-case letters.
.It Cm u
.It Cm \&:u
Remove adjacent duplicate words (like
.Xr uniq 1 ) .
.El