Commit | Line | Data |
---|---|---|
ef79bbde P |
1 | /* Implementation of the dcgettext(3) function. |
2 | Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc. | |
3 | ||
4 | This program is free software; you can redistribute it and/or modify | |
5 | it under the terms of the GNU General Public License as published by | |
6 | 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 | |
12 | GNU General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU General Public License | |
15 | along with this program; if not, write to the Free Software Foundation, | |
16 | Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1307 USA. */ | |
17 | ||
18 | #include "intlconfig.h" | |
19 | ||
20 | #include <sys/types.h> | |
21 | ||
22 | #ifdef __GNUC__ | |
23 | # define alloca __builtin_alloca | |
24 | # define HAVE_ALLOCA 1 | |
25 | #else | |
26 | # if defined HAVE_ALLOCA_H || defined _LIBC | |
27 | # include <alloca.h> | |
28 | # else | |
29 | # ifdef _AIX | |
30 | #pragma alloca | |
31 | # else | |
32 | # ifndef alloca | |
33 | char *alloca (); | |
34 | # endif | |
35 | # endif | |
36 | # endif | |
37 | #endif | |
38 | ||
39 | #include <errno.h> | |
40 | #ifndef errno | |
41 | extern int errno; | |
42 | #endif | |
43 | #ifndef __set_errno | |
44 | # define __set_errno(val) errno = (val) | |
45 | #endif | |
46 | ||
47 | #if defined STDC_HEADERS || defined _LIBC | |
48 | # include <stdlib.h> | |
49 | #else | |
50 | char *getenv (); | |
51 | # ifdef HAVE_MALLOC_H | |
52 | # include <malloc.h> | |
53 | # else | |
54 | void free (); | |
55 | # endif | |
56 | #endif | |
57 | ||
58 | #if defined HAVE_STRING_H || defined _LIBC | |
59 | # ifndef _GNU_SOURCE | |
60 | # define _GNU_SOURCE 1 | |
61 | # endif | |
62 | # include <string.h> | |
63 | #else | |
64 | # include <strings.h> | |
65 | #endif | |
66 | #if !HAVE_STRCHR && !defined _LIBC | |
67 | # ifndef strchr | |
68 | # define strchr index | |
69 | # endif | |
70 | #endif | |
71 | ||
72 | #if defined HAVE_UNISTD_H || defined _LIBC | |
73 | # include <unistd.h> | |
74 | #endif | |
75 | ||
76 | #include "gettext.h" | |
77 | #include "gettextP.h" | |
78 | #ifdef _LIBC | |
79 | # include <libintl.h> | |
80 | #else | |
81 | # include "libgettext.h" | |
82 | #endif | |
83 | #include "hash-string.h" | |
84 | ||
85 | /* @@ end of prolog @@ */ | |
86 | ||
87 | #ifdef _LIBC | |
88 | /* Rename the non ANSI C functions. This is required by the standard | |
89 | because some ANSI C functions will require linking with this object | |
90 | file and the name space must not be polluted. */ | |
91 | # define getcwd __getcwd | |
92 | # ifndef stpcpy | |
93 | # define stpcpy __stpcpy | |
94 | # endif | |
95 | #else | |
96 | # if !defined HAVE_GETCWD | |
97 | char *getwd (); | |
98 | # define getcwd(buf, max) getwd (buf) | |
99 | # else | |
100 | char *getcwd (); | |
101 | # endif | |
102 | # ifndef HAVE_STPCPY | |
103 | static char *stpcpy PARAMS ((char *dest, const char *src)); | |
104 | # endif | |
105 | #endif | |
106 | ||
107 | /* Amount to increase buffer size by in each try. */ | |
108 | #define PATH_INCR 32 | |
109 | ||
110 | /* The following is from pathmax.h. */ | |
111 | /* Non-POSIX BSD systems might have gcc's limits.h, which doesn't define | |
112 | PATH_MAX but might cause redefinition warnings when sys/param.h is | |
113 | later included (as on MORE/BSD 4.3). */ | |
114 | #if defined(_POSIX_VERSION) || (defined(HAVE_LIMITS_H) && !defined(__GNUC__)) | |
115 | # include <limits.h> | |
116 | #endif | |
117 | ||
118 | #ifndef _POSIX_PATH_MAX | |
119 | # define _POSIX_PATH_MAX 255 | |
120 | #endif | |
121 | ||
122 | #if !defined(PATH_MAX) && defined(_PC_PATH_MAX) | |
123 | # define PATH_MAX (pathconf ("/", _PC_PATH_MAX) < 1 ? 1024 : pathconf ("/", _PC_PATH_MAX)) | |
124 | #endif | |
125 | ||
126 | /* Don't include sys/param.h if it already has been. */ | |
127 | #if defined(HAVE_SYS_PARAM_H) && !defined(PATH_MAX) && !defined(MAXPATHLEN) | |
128 | # include <sys/param.h> | |
129 | #endif | |
130 | ||
131 | #if !defined(PATH_MAX) && defined(MAXPATHLEN) | |
132 | # define PATH_MAX MAXPATHLEN | |
133 | #endif | |
134 | ||
135 | #ifndef PATH_MAX | |
136 | # define PATH_MAX _POSIX_PATH_MAX | |
137 | #endif | |
138 | ||
139 | /* XPG3 defines the result of `setlocale (category, NULL)' as: | |
140 | ``Directs `setlocale()' to query `category' and return the current | |
141 | setting of `local'.'' | |
142 | However it does not specify the exact format. And even worse: POSIX | |
143 | defines this not at all. So we can use this feature only on selected | |
144 | system (e.g. those using GNU C Library). */ | |
145 | #ifdef _LIBC | |
146 | # define HAVE_LOCALE_NULL | |
147 | #endif | |
148 | ||
149 | /* Name of the default domain used for gettext(3) prior any call to | |
150 | textdomain(3). The default value for this is "messages". */ | |
151 | const char _nl_default_default_domain[] = "messages"; | |
152 | ||
153 | /* Value used as the default domain for gettext(3). */ | |
154 | const char *_nl_current_default_domain = _nl_default_default_domain; | |
155 | ||
156 | /* Contains the default location of the message catalogs. */ | |
157 | const char _nl_default_dirname[] = GNULOCALEDIR; | |
158 | ||
159 | /* List with bindings of specific domains created by bindtextdomain() | |
160 | calls. */ | |
161 | struct binding *_nl_domain_bindings; | |
162 | ||
163 | /* Prototypes for local functions. */ | |
164 | static char *find_msg PARAMS ((struct loaded_l10nfile *domain_file, | |
165 | const char *msgid)) internal_function; | |
166 | static const char *category_to_name PARAMS ((int category)) internal_function; | |
167 | static const char *guess_category_value PARAMS ((int category, | |
168 | const char *categoryname)) | |
169 | internal_function; | |
170 | ||
171 | ||
172 | /* For those loosing systems which don't have `alloca' we have to add | |
173 | some additional code emulating it. */ | |
174 | #ifdef HAVE_ALLOCA | |
175 | /* Nothing has to be done. */ | |
176 | # define ADD_BLOCK(list, address) /* nothing */ | |
177 | # define FREE_BLOCKS(list) /* nothing */ | |
178 | #else | |
179 | struct block_list | |
180 | { | |
181 | void *address; | |
182 | struct block_list *next; | |
183 | }; | |
184 | # define ADD_BLOCK(list, addr) \ | |
185 | do { \ | |
186 | struct block_list *newp = (struct block_list *) malloc (sizeof (*newp)); \ | |
187 | /* If we cannot get a free block we cannot add the new element to \ | |
188 | the list. */ \ | |
189 | if (newp != NULL) { \ | |
190 | newp->address = (addr); \ | |
191 | newp->next = (list); \ | |
192 | (list) = newp; \ | |
193 | } \ | |
194 | } while (0) | |
195 | # define FREE_BLOCKS(list) \ | |
196 | do { \ | |
197 | while (list != NULL) { \ | |
198 | struct block_list *old = list; \ | |
199 | list = list->next; \ | |
200 | free (old); \ | |
201 | } \ | |
202 | } while (0) | |
203 | # undef alloca | |
204 | # define alloca(size) (malloc (size)) | |
205 | #endif /* have alloca */ | |
206 | ||
207 | ||
208 | /* Names for the libintl functions are a problem. They must not clash | |
209 | with existing names and they should follow ANSI C. But this source | |
210 | code is also used in GNU C Library where the names have a __ | |
211 | prefix. So we have to make a difference here. */ | |
212 | #ifdef _LIBC | |
213 | # define DCGETTEXT __dcgettext | |
214 | #else | |
215 | # define DCGETTEXT dcgettext__ | |
216 | #endif | |
217 | ||
218 | /* Look up MSGID in the DOMAINNAME message catalog for the current CATEGORY | |
219 | locale. */ | |
220 | char * | |
221 | DCGETTEXT (domainname, msgid, category) | |
222 | const char *domainname; | |
223 | const char *msgid; | |
224 | int category; | |
225 | { | |
226 | #ifndef HAVE_ALLOCA | |
227 | struct block_list *block_list = NULL; | |
228 | #endif | |
229 | struct loaded_l10nfile *domain; | |
230 | struct binding *binding; | |
231 | const char *categoryname; | |
232 | const char *categoryvalue; | |
233 | char *dirname, *xdomainname; | |
234 | char *single_locale; | |
235 | char *retval; | |
236 | int saved_errno = errno; | |
237 | ||
238 | /* If no real MSGID is given return NULL. */ | |
239 | if (msgid == NULL) | |
240 | return NULL; | |
241 | ||
242 | /* If DOMAINNAME is NULL, we are interested in the default domain. If | |
243 | CATEGORY is not LC_MESSAGES this might not make much sense but the | |
244 | defintion left this undefined. */ | |
245 | if (domainname == NULL) | |
246 | domainname = _nl_current_default_domain; | |
247 | ||
248 | /* First find matching binding. */ | |
249 | for (binding = _nl_domain_bindings; binding != NULL; binding = binding->next) | |
250 | { | |
251 | int compare = strcmp (domainname, binding->domainname); | |
252 | if (compare == 0) | |
253 | /* We found it! */ | |
254 | break; | |
255 | if (compare < 0) | |
256 | { | |
257 | /* It is not in the list. */ | |
258 | binding = NULL; | |
259 | break; | |
260 | } | |
261 | } | |
262 | ||
263 | if (binding == NULL) | |
264 | dirname = (char *) _nl_default_dirname; | |
265 | Content-type: text/html