NetBSD/gnu/usr.bin/rcs/lib/rcskeys.c

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/* $NetBSD: rcskeys.c,v 1.8 1996/10/21 07:00:09 veego Exp $ */
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/* RCS keyword table and match operation */
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/* Copyright 1982, 1988, 1989 Walter Tichy
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Copyright 1990, 1991, 1992, 1993, 1995 Paul Eggert
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Distributed under license by the Free Software Foundation, Inc.
This file is part of RCS.
RCS is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
RCS is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
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along with RCS; see the file COPYING.
If not, write to the Free Software Foundation,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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Report problems and direct all questions to:
rcs-bugs@cs.purdue.edu
*/
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/*
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* $Log: rcskeys.c,v $
* Revision 1.8 1996/10/21 07:00:09 veego
* Fix missing "#ifdef LOCALID" from pr#2876
*
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* Revision 1.7 1996/10/15 07:00:22 veego
* Merge rcs 5.7.
*
* Revision 5.4 1995/06/16 06:19:24 eggert
* Update FSF address.
*
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* Revision 5.3 1993/11/03 17:42:27 eggert
* Add Name keyword.
*
* Revision 5.2 1991/08/19 03:13:55 eggert
* Say `T const' instead of `const T'; it's less confusing for pointer types.
* (This change was made in other source files too.)
*
* Revision 5.1 1991/04/21 11:58:25 eggert
* Don't put , just before } in initializer.
*
* Revision 5.0 1990/08/22 08:12:54 eggert
* Add -k. Ansify and Posixate.
*
* Revision 4.3 89/05/01 15:13:02 narten
* changed copyright header to reflect current distribution rules
*
* Revision 4.2 87/10/18 10:36:33 narten
* Updating version numbers. Changes relative to 1.1 actuallyt
* relative to 4.1
*
* Revision 1.2 87/09/24 14:00:10 narten
* Sources now pass through lint (if you ignore printf/sprintf/fprintf
* warnings)
*
* Revision 4.1 83/05/04 10:06:53 wft
* Initial revision.
*
*/
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#include "rcsbase.h"
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libId(keysId, "Id: rcskeys.c,v 5.4 1995/06/16 06:19:24 eggert Exp")
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char const *const Keyword[] = {
/* This must be in the same order as rcsbase.h's enum markers type. */
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0,
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AUTHOR, DATE, HEADER, IDH,
#ifdef LOCALID
LOCALID,
#endif
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LOCKER, LOG, NAME, RCSFILE, REVISION, SOURCE, STATE
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};
enum markers
trymatch(string)
char const *string;
/* function: Checks whether string starts with a keyword followed
* by a KDELIM or a VDELIM.
* If successful, returns the appropriate marker, otherwise Nomatch.
*/
{
register int j;
register char const *p, *s;
for (j = sizeof(Keyword)/sizeof(*Keyword); (--j); ) {
/* try next keyword */
p = Keyword[j];
s = string;
while (*p++ == *s++) {
if (!*p)
switch (*s) {
case KDELIM:
case VDELIM:
return (enum markers)j;
default:
return Nomatch;
}
}
}
return(Nomatch);
}