1 /* $NetBSD: rcskeys.c,v 1.2 2016/01/14 04:22:39 christos Exp $ */
2
3 /* RCS keyword table and match operation */
4
5 /* Copyright 1982, 1988, 1989 Walter Tichy
6 Copyright 1990, 1991, 1992, 1993, 1995 Paul Eggert
7 Distributed under license by the Free Software Foundation, Inc.
8
9 This file is part of RCS.
10
11 RCS is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 2, or (at your option)
14 any later version.
15
16 RCS is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
20
21 You should have received a copy of the GNU General Public License
22 along with RCS; see the file COPYING.
23 If not, write to the Free Software Foundation,
24 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
25
26 Report problems and direct all questions to:
27
28 rcs-bugs@cs.purdue.edu
29
30 */
31
32 /*
33 * Log: rcskeys.c,v
34 * Revision 5.4 1995/06/16 06:19:24 eggert
35 * Update FSF address.
36 *
37 * Revision 5.3 1993/11/03 17:42:27 eggert
38 * Add Name keyword.
39 *
40 * Revision 5.2 1991/08/19 03:13:55 eggert
41 * Say `T const' instead of `const T'; it's less confusing for pointer types.
42 * (This change was made in other source files too.)
43 *
44 * Revision 5.1 1991/04/21 11:58:25 eggert
45 * Don't put , just before } in initializer.
46 *
47 * Revision 5.0 1990/08/22 08:12:54 eggert
48 * Add -k. Ansify and Posixate.
49 *
50 * Revision 4.3 89/05/01 15:13:02 narten
51 * changed copyright header to reflect current distribution rules
52 *
53 * Revision 4.2 87/10/18 10:36:33 narten
54 * Updating version numbers. Changes relative to 1.1 actuallyt
55 * relative to 4.1
56 *
57 * Revision 1.2 87/09/24 14:00:10 narten
58 * Sources now pass through lint (if you ignore printf/sprintf/fprintf
59 * warnings)
60 *
61 * Revision 4.1 83/05/04 10:06:53 wft
62 * Initial revision.
63 *
64 */
65
66
67 #include "rcsbase.h"
68
69 libId(keysId, "Id: rcskeys.c,v 5.4 1995/06/16 06:19:24 eggert Exp ")
70
71
72 char const *const Keyword[] = {
73 /* This must be in the same order as rcsbase.h's enum markers type. */
74 0,
75 AUTHOR, DATE, HEADER, IDH,
76 #ifdef LOCALID
77 LOCALID,
78 #endif
79 LOCKER, LOG, NAME, RCSFILE, REVISION, SOURCE, STATE
80 };
81
82
83
84 enum markers
trymatch(string)85 trymatch(string)
86 char const *string;
87 /* function: Checks whether string starts with a keyword followed
88 * by a KDELIM or a VDELIM.
89 * If successful, returns the appropriate marker, otherwise Nomatch.
90 */
91 {
92 register int j;
93 register char const *p, *s;
94 for (j = sizeof(Keyword)/sizeof(*Keyword); (--j); ) {
95 /* try next keyword */
96 p = Keyword[j];
97 s = string;
98 while (*p++ == *s++) {
99 if (!*p)
100 switch (*s) {
101 case KDELIM:
102 case VDELIM:
103 return (enum markers)j;
104 default:
105 return Nomatch;
106 }
107 }
108 }
109 return(Nomatch);
110 }
111
112