[src/trunk]: src/usr.bin/make make(1): condense comment for ApplyModifiers

[rillig <rillig%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/08f7e019bca9
branches:  trunk
changeset: 937060:08f7e019bca9
user:      rillig <rillig%NetBSD.org@localhost>
date:      Sat Aug 08 12:35:15 2020 +0000

description:
make(1): condense comment for ApplyModifiers

This comment only repeats what is written in the manual page.
Furthermore, it didn't get updated consistently.  The missing modifiers
were :_, :gmtime, :localtime, :hash, :Q, :range, :Or.

diffstat:

 usr.bin/make/var.c |  73 ++---------------------------------------------------
 1 files changed, 4 insertions(+), 69 deletions(-)

diffs (100 lines):

diff -r 1eea6eb7b403 -r 08f7e019bca9 usr.bin/make/var.c
--- a/usr.bin/make/var.c        Sat Aug 08 12:32:26 2020 +0000
+++ b/usr.bin/make/var.c        Sat Aug 08 12:35:15 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: var.c,v 1.418 2020/08/08 12:32:26 rillig Exp $ */
+/*     $NetBSD: var.c,v 1.419 2020/08/08 12:35:15 rillig Exp $ */
 
 /*
  * Copyright (c) 1988, 1989, 1990, 1993
@@ -69,14 +69,14 @@
  */
 
 #ifndef MAKE_NATIVE
-static char rcsid[] = "$NetBSD: var.c,v 1.418 2020/08/08 12:32:26 rillig Exp $";
+static char rcsid[] = "$NetBSD: var.c,v 1.419 2020/08/08 12:35:15 rillig Exp $";
 #else
 #include <sys/cdefs.h>
 #ifndef lint
 #if 0
 static char sccsid[] = "@(#)var.c      8.3 (Berkeley) 3/19/94";
 #else
-__RCSID("$NetBSD: var.c,v 1.418 2020/08/08 12:32:26 rillig Exp $");
+__RCSID("$NetBSD: var.c,v 1.419 2020/08/08 12:35:15 rillig Exp $");
 #endif
 #endif /* not lint */
 #endif
@@ -2956,72 +2956,7 @@
 }
 #endif
 
-/*
- * Now we need to apply any modifiers the user wants applied.
- * These are:
- *       :M<pattern>   words which match the given <pattern>.
- *                     <pattern> is of the standard file
- *                     wildcarding form.
- *       :N<pattern>   words which do not match the given <pattern>.
- *       :S<d><pat1><d><pat2><d>[1gW]
- *                     Substitute <pat2> for <pat1> in the value
- *       :C<d><pat1><d><pat2><d>[1gW]
- *                     Substitute <pat2> for regex <pat1> in the value
- *       :H            Substitute the head of each word
- *       :T            Substitute the tail of each word
- *       :E            Substitute the extension (minus '.') of
- *                     each word
- *       :R            Substitute the root of each word
- *                     (pathname minus the suffix).
- *       :O            ("Order") Alphabeticaly sort words in variable.
- *       :Ox           ("intermiX") Randomize words in variable.
- *       :u            ("uniq") Remove adjacent duplicate words.
- *       :tu           Converts the variable contents to uppercase.
- *       :tl           Converts the variable contents to lowercase.
- *       :ts[c]        Sets varSpace - the char used to
- *                     separate words to 'c'. If 'c' is
- *                     omitted then no separation is used.
- *       :tW           Treat the variable contents as a single
- *                     word, even if it contains spaces.
- *                     (Mnemonic: one big 'W'ord.)
- *       :tw           Treat the variable contents as multiple
- *                     space-separated words.
- *                     (Mnemonic: many small 'w'ords.)
- *       :[index]      Select a single word from the value.
- *       :[start..end] Select multiple words from the value.
- *       :[*] or :[0]  Select the entire value, as a single
- *                     word.  Equivalent to :tW.
- *       :[@]          Select the entire value, as multiple
- *                     words.  Undoes the effect of :[*].
- *                     Equivalent to :tw.
- *       :[#]          Returns the number of words in the value.
- *
- *       :?<true-value>:<false-value>
- *                     If the variable evaluates to true, return
- *                     true-value, else return false-value.
- *       :lhs=rhs      Similar to :S, but the rhs goes to the end of
- *                     the invocation, including any ':'.
- *       :sh           Treat the current value as a command
- *                     to be run, new value is its output.
- * The following added so we can handle ODE makefiles.
- *       :@<tmpvar>@<newval>@
- *                     Assign a temporary global variable <tmpvar>
- *                     to the current value of each word in turn
- *                     and replace each word with the result of
- *                     evaluating <newval>
- *       :D<newval>    Use <newval> as value if variable defined
- *       :U<newval>    Use <newval> as value if variable undefined
- *       :L            Use the name of the variable as the value.
- *       :P            Use the path of the node that has the same
- *                     name as the variable as the value.  This
- *                     basically includes an implied :L so that
- *                     the common method of refering to the path
- *                     of your dependent 'x' in a rule is to use
- *                     the form '${x:P}'.
- *       :!<cmd>!      Run cmd much the same as :sh runs the
- *                     current value of the variable.
- * Assignment operators (see ApplyModifier_Assign).
- */
+/* Apply any modifiers (such as :Mpattern or :@var@loop@ or :Q or ::=value). */
 static char *
 ApplyModifiers(
     const char **pp,           /* the parsing position, updated upon return */