1 /* Copyright (C) 1995-1998, 2000, 2001 Free Software Foundation, Inc.
2 Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
3
4 This program is free software; you can redistribute it and/or modify it
5 under the terms of the GNU Library General Public License as published
6 by the Free Software Foundation; either version 2, or (at your option)
7 any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Library General Public License for more details.
13
14 You should have received a copy of the GNU Library General Public
15 License along with this program; if not, write to the Free Software
16 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301,
17 USA. */
18
19 #ifdef HAVE_CONFIG_H
20 # include <config.h>
21 #endif
22
23 #include <stdlib.h>
24 #include <string.h>
25 #include <sys/types.h>
26
27 #include "loadinfo.h"
28
29 /* On some strange systems still no definition of NULL is found. Sigh! */
30 #ifndef NULL
31 # if defined __STDC__ && __STDC__
32 # define NULL ((void *) 0)
33 # else
34 # define NULL 0
35 # endif
36 #endif
37
38 /* @@ end of prolog @@ */
39
40 char *
41 _nl_find_language (name)
42 const char *name;
43 {
44 while (name[0] != '\0' && name[0] != '_' && name[0] != '@'
45 && name[0] != '+' && name[0] != ',')
46 ++name;
47
48 return (char *) name;
49 }
50
51
52 int
53 _nl_explode_name (name, language, modifier, territory, codeset,
54 normalized_codeset, special, sponsor, revision)
55 char *name;
56 const char **language;
57 const char **modifier;
58 const char **territory;
59 const char **codeset;
60 const char **normalized_codeset;
61 const char **special;
62 const char **sponsor;
63 const char **revision;
64 {
65 enum { undecided, xpg, cen } syntax;
66 char *cp;
67 int mask;
68
69 *modifier = NULL;
70 *territory = NULL;
71 *codeset = NULL;
72 *normalized_codeset = NULL;
73 *special = NULL;
74 *sponsor = NULL;
75 *revision = NULL;
76
77 /* Now we determine the single parts of the locale name. First
78 look for the language. Termination symbols are `_' and `@' if
79 we use XPG4 style, and `_', `+', and `,' if we use CEN syntax. */
80 mask = 0;
81 syntax = undecided;
82 *language = cp = name;
83 cp = _nl_find_language (*language);
84
85 if (*language == cp)
86 /* This does not make sense: language has to be specified. Use
87 this entry as it is without exploding. Perhaps it is an alias. */
88 cp = strchr (*language, '\0');
89 else if (cp[0] == '_')
90 {
91 /* Next is the territory. */
92 cp[0] = '\0';
93 *territory = ++cp;
94
95 while (cp[0] != '\0' && cp[0] != '.' && cp[0] != '@'
96 && cp[0] != '+' && cp[0] != ',' && cp[0] != '_')
97 ++cp;
98
99 mask |= TERRITORY;
100
101 if (cp[0] == '.')
102 {
103 /* Next is the codeset. */
104 syntax = xpg;
105 cp[0] = '\0';
106 *codeset = ++cp;
107
108 while (cp[0] != '\0' && cp[0] != '@')
109 ++cp;
110
111 mask |= XPG_CODESET;
112
113 if (*codeset != cp && (*codeset)[0] != '\0')
114 {
115 *normalized_codeset = _nl_normalize_codeset (*codeset,
116 cp - *codeset);
117 if (strcmp (*codeset, *normalized_codeset) == 0)
118 free ((char *) *normalized_codeset);
119 else
120 mask |= XPG_NORM_CODESET;
121 }
122 }
123 }
124
125 if (cp[0] == '@' || (syntax != xpg && cp[0] == '+'))
126 {
127 /* Next is the modifier. */
128 syntax = cp[0] == '@' ? xpg : cen;
129 cp[0] = '\0';
130 *modifier = ++cp;
131
132 while (syntax == cen && cp[0] != '\0' && cp[0] != '+'
133 && cp[0] != ',' && cp[0] != '_')
134 ++cp;
135
136 mask |= XPG_MODIFIER | CEN_AUDIENCE;
137 }
138
139 if (syntax != xpg && (cp[0] == '+' || cp[0] == ',' || cp[0] == '_'))
140 {
141 syntax = cen;
142
143 if (cp[0] == '+')
144 {
145 /* Next is special application (CEN syntax). */
146 cp[0] = '\0';
147 *special = ++cp;
148
149 while (cp[0] != '\0' && cp[0] != ',' && cp[0] != '_')
150 ++cp;
151
152 mask |= CEN_SPECIAL;
153 }
154
155 if (cp[0] == ',')
156 {
157 /* Next is sponsor (CEN syntax). */
158 cp[0] = '\0';
159 *sponsor = ++cp;
160
161 while (cp[0] != '\0' && cp[0] != '_')
162 ++cp;
163
164 mask |= CEN_SPONSOR;
165 }
166
167 if (cp[0] == '_')
168 {
169 /* Next is revision (CEN syntax). */
170 cp[0] = '\0';
171 *revision = ++cp;
172
173 mask |= CEN_REVISION;
174 }
175 }
176
177 /* For CEN syntax values it might be important to have the
178 separator character in the file name, not for XPG syntax. */
179 if (syntax == xpg)
180 {
181 if (*territory != NULL && (*territory)[0] == '\0')
182 mask &= ~TERRITORY;
183
184 if (*codeset != NULL && (*codeset)[0] == '\0')
185 mask &= ~XPG_CODESET;
186
187 if (*modifier != NULL && (*modifier)[0] == '\0')
188 mask &= ~XPG_MODIFIER;
189 }
190
191 return mask;
192 }