1 /* RCS keyword table and match operation */
2
3 /* Copyright 1982, 1988, 1989 Walter Tichy
4 Copyright 1990, 1991, 1992, 1993, 1995 Paul Eggert
5 Distributed under license by the Free Software Foundation, Inc.
6
7 This file is part of RCS.
8
9 RCS is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2, or (at your option)
12 any later version.
13
14 RCS is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with RCS; see the file COPYING.
21 If not, write to the Free Software Foundation,
22 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
23
24 Report problems and direct all questions to:
25
26 rcs-bugs@cs.purdue.edu
27
28 */
29
30 /*
31 * Revision 5.4 1995/06/16 06:19:24 eggert
32 * Update FSF address.
33 *
34 * Revision 5.3 1993/11/03 17:42:27 eggert
35 * Add Name keyword.
36 *
37 * Revision 5.2 1991/08/19 03:13:55 eggert
38 * Say `T const' instead of `const T'; it's less confusing for pointer types.
39 * (This change was made in other source files too.)
40 *
41 * Revision 5.1 1991/04/21 11:58:25 eggert
42 * Don't put , just before } in initializer.
43 *
44 * Revision 5.0 1990/08/22 08:12:54 eggert
45 * Add -k. Ansify and Posixate.
46 *
47 * Revision 4.3 89/05/01 15:13:02 narten
48 * changed copyright header to reflect current distribution rules
49 *
50 * Revision 4.2 87/10/18 10:36:33 narten
51 * Updating version numbers. Changes relative to 1.1 actuallyt
52 * relative to 4.1
53 *
54 * Revision 1.2 87/09/24 14:00:10 narten
55 * Sources now pass through lint (if you ignore printf/sprintf/fprintf
56 * warnings)
57 *
58 * Revision 4.1 83/05/04 10:06:53 wft
59 * Initial revision.
60 *
61 */
62
63
64 #include "rcsbase.h"
65
66 libId(keysId, "$FreeBSD: stable/10/gnu/usr.bin/rcs/lib/rcskeys.c 90399 2002-02-08 11:57:43Z ru $")
67
68
69 char const *Keyword[] = {
70 /* This must be in the same order as rcsbase.h's enum markers type. */
71 0,
72 AUTHOR, DATE, HEADER, IDH,
73 LOCKER, LOG, NAME, RCSFILE, REVISION, SOURCE, STATE, CVSHEADER,
74 NULL
75 };
76
77 /* Expand all keywords by default */
78 static int ExpandKeyword[] = {
79 false,
80 true, true, true, true,
81 true, true, true, true, true, true, true, true,
82 true
83 };
84 enum markers LocalIdMode = Id;
85
86 enum markers
trymatch(string)87 trymatch(string)
88 char const *string;
89 /* function: Checks whether string starts with a keyword followed
90 * by a KDELIM or a VDELIM.
91 * If successful, returns the appropriate marker, otherwise Nomatch.
92 */
93 {
94 register int j;
95 register char const *p, *s;
96 for (j = sizeof(Keyword)/sizeof(*Keyword); (--j); ) {
97 if (!ExpandKeyword[j])
98 continue;
99 /* try next keyword */
100 p = Keyword[j];
101 if (p == NULL)
102 continue;
103 s = string;
104 while (*p++ == *s++) {
105 if (!*p)
106 switch (*s) {
107 case KDELIM:
108 case VDELIM:
109 return (enum markers)j;
110 default:
111 return Nomatch;
112 }
113 }
114 }
115 return(Nomatch);
116 }
117
118 void
setIncExc(arg)119 setIncExc(arg)
120 char const *arg;
121 /* Sets up the ExpandKeyword table according to command-line flags */
122 {
123 char *key;
124 char *copy, *next;
125 int include = 0, j;
126
127 copy = strdup(arg);
128 next = copy;
129 switch (*next++) {
130 case 'e':
131 include = false;
132 break;
133 case 'i':
134 include = true;
135 break;
136 default:
137 free(copy);
138 return;
139 }
140 if (include)
141 for (j = sizeof(Keyword)/sizeof(*Keyword); (--j); )
142 ExpandKeyword[j] = false;
143 key = strtok(next, ",");
144 while (key) {
145 for (j = sizeof(Keyword)/sizeof(*Keyword); (--j); ) {
146 if (Keyword[j] == NULL)
147 continue;
148 if (!strcmp(key, Keyword[j]))
149 ExpandKeyword[j] = include;
150 }
151 key = strtok(NULL, ",");
152 }
153 free(copy);
154 return;
155 }
156
157 void
setRCSLocalId(string)158 setRCSLocalId(string)
159 char const *string;
160 /* function: sets local RCS id and RCSLOCALID envariable */
161 {
162 static char local_id[keylength+1];
163 char *copy, *next, *key;
164 int j;
165
166 copy = strdup(string);
167 next = copy;
168 key = strtok(next, "=");
169 if (strlen(key) > keylength)
170 faterror("LocalId is too long");
171 VOID strcpy(local_id, key);
172 Keyword[LocalId] = local_id;
173
174 /* options? */
175 while (key = strtok(NULL, ",")) {
176 if (!strcmp(key, Keyword[Id]))
177 LocalIdMode=Id;
178 else if (!strcmp(key, Keyword[Header]))
179 LocalIdMode=Header;
180 else if (!strcmp(key, Keyword[CVSHeader]))
181 LocalIdMode=CVSHeader;
182 else
183 error("Unknown LocalId mode");
184 }
185 free(copy);
186 }
187