[src/trunk]: src/usr.bin/make make(1): fix documentation for VARP_SUB_ONE

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

details:   https://anonhg.NetBSD.org/src/rev/dc1ebb3e2619
branches:  trunk
changeset: 941783:dc1ebb3e2619
user:      rillig <rillig%NetBSD.org@localhost>
date:      Fri Oct 30 16:54:38 2020 +0000

description:
make(1): fix documentation for VARP_SUB_ONE

The pattern is only replaced a single time, not everywhere in the first
matching word.

diffstat:

 usr.bin/make/var.c |  12 ++++++------
 1 files changed, 6 insertions(+), 6 deletions(-)

diffs (33 lines):

diff -r 7ff74688ad7e -r dc1ebb3e2619 usr.bin/make/var.c
--- a/usr.bin/make/var.c        Fri Oct 30 16:48:58 2020 +0000
+++ b/usr.bin/make/var.c        Fri Oct 30 16:54:38 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: var.c,v 1.603 2020/10/30 16:48:58 rillig Exp $ */
+/*     $NetBSD: var.c,v 1.604 2020/10/30 16:54:38 rillig Exp $ */
 
 /*
  * Copyright (c) 1988, 1989, 1990, 1993
@@ -129,7 +129,7 @@
 #include    "metachar.h"
 
 /*     "@(#)var.c      8.3 (Berkeley) 3/19/94" */
-MAKE_RCSID("$NetBSD: var.c,v 1.603 2020/10/30 16:48:58 rillig Exp $");
+MAKE_RCSID("$NetBSD: var.c,v 1.604 2020/10/30 16:54:38 rillig Exp $");
 
 #define VAR_DEBUG1(fmt, arg1) DEBUG1(VAR, fmt, arg1)
 #define VAR_DEBUG2(fmt, arg1, arg2) DEBUG2(VAR, fmt, arg1, arg2)
@@ -278,10 +278,10 @@
 
 /* Flags for pattern matching in the :S and :C modifiers */
 typedef enum VarPatternFlags {
-    VARP_SUB_GLOBAL    = 0x01, /* Apply substitution globally */
-    VARP_SUB_ONE       = 0x02, /* Apply substitution to one word */
-    VARP_ANCHOR_START  = 0x04, /* Match at start of word */
-    VARP_ANCHOR_END    = 0x08  /* Match at end of word */
+    VARP_SUB_GLOBAL    = 0x01, /* Replace as often as possible ('g') */
+    VARP_SUB_ONE       = 0x02, /* Replace only once ('1') */
+    VARP_ANCHOR_START  = 0x04, /* Match at start of word ('^') */
+    VARP_ANCHOR_END    = 0x08  /* Match at end of word ('$') */
 } VarPatternFlags;
 
 static Var *