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make(1): document CondParser_Comparison

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rillig 2020-09-11 07:09:40 +00:00
parent 30109ee17c
commit 38ac32b33e
1 changed files with 10 additions and 3 deletions
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13
usr.bin/make/cond.c
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@ -1,4 +1,4 @@
/* $NetBSD: cond.c,v 1.128 2020/09/11 06:47:42 rillig Exp $ */ /* $NetBSD: cond.c,v 1.129 2020/09/11 07:09:40 rillig Exp $ */
/* /*
* Copyright (c) 1988, 1989, 1990 The Regents of the University of California. * Copyright (c) 1988, 1989, 1990 The Regents of the University of California.
@ -70,14 +70,14 @@
*/ */
#ifndef MAKE_NATIVE #ifndef MAKE_NATIVE
static char rcsid[] = "$NetBSD: cond.c,v 1.128 2020/09/11 06:47:42 rillig Exp $"; static char rcsid[] = "$NetBSD: cond.c,v 1.129 2020/09/11 07:09:40 rillig Exp $";
#else #else
#include <sys/cdefs.h> #include <sys/cdefs.h>
#ifndef lint #ifndef lint
#if 0 #if 0
static char sccsid[] = "@(#)cond.c 8.2 (Berkeley) 1/2/94"; static char sccsid[] = "@(#)cond.c 8.2 (Berkeley) 1/2/94";
#else #else
__RCSID("$NetBSD: cond.c,v 1.128 2020/09/11 06:47:42 rillig Exp $"); __RCSID("$NetBSD: cond.c,v 1.129 2020/09/11 07:09:40 rillig Exp $");
#endif #endif
#endif /* not lint */ #endif /* not lint */
#endif #endif
@ -523,6 +523,13 @@ static const struct If {
{ NULL, 0, FALSE, NULL } { NULL, 0, FALSE, NULL }
}; };
/* Parse a comparison condition such as:
*
* 0
* ${VAR:Mpattern}
* ${VAR} == value
* ${VAR:U0} < 12345
*/
static Token static Token
CondParser_Comparison(CondParser *par, Boolean doEval) CondParser_Comparison(CondParser *par, Boolean doEval)
{ {