Annotation of embedaddon/lrzsz/intl/finddomain.c, revision 1.1.1.1
1.1 misho 1: /* Handle list of needed message catalogs
2: Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
3: Written by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
4:
5: This program is free software; you can redistribute it and/or modify
6: it under the terms of the GNU General Public License as published by
7: the Free Software Foundation; either version 2, or (at your option)
8: any later version.
9:
10: This program is distributed in the hope that it will be useful,
11: but WITHOUT ANY WARRANTY; without even the implied warranty of
12: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13: GNU General Public License for more details.
14:
15: You should have received a copy of the GNU General Public License
16: along with this program; if not, write to the Free Software Foundation,
17: Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
18:
19: #ifdef HAVE_CONFIG_H
20: # include <config.h>
21: #endif
22:
23: #include <ctype.h>
24: #include <errno.h>
25: #include <stdio.h>
26: #include <sys/types.h>
27:
28: #if defined STDC_HEADERS || defined _LIBC
29: # include <stdlib.h>
30: #else
31: # ifdef HAVE_MALLOC_H
32: # include <malloc.h>
33: # else
34: void free ();
35: # endif
36: #endif
37:
38: #if defined HAVE_STRING_H || defined _LIBC
39: # include <string.h>
40: #else
41: # include <strings.h>
42: # ifndef memcpy
43: # define memcpy(Dst, Src, Num) bcopy (Src, Dst, Num)
44: # endif
45: #endif
46: #if !HAVE_STRCHR && !defined _LIBC
47: # ifndef strchr
48: # define strchr index
49: # endif
50: #endif
51:
52: #if defined HAVE_UNISTD_H || defined _LIBC
53: # include <unistd.h>
54: #endif
55:
56: #include "gettext.h"
57: #include "gettextP.h"
58: #ifdef _LIBC
59: # include <libintl.h>
60: #else
61: # include "libgettext.h"
62: #endif
63:
64: /* @@ end of prolog @@ */
65: /* List of already loaded domains. */
66: static struct loaded_l10nfile *_nl_loaded_domains;
67:
68:
69: /* Return a data structure describing the message catalog described by
70: the DOMAINNAME and CATEGORY parameters with respect to the currently
71: established bindings. */
72: struct loaded_l10nfile *
73: _nl_find_domain (dirname, locale, domainname)
74: const char *dirname;
75: char *locale;
76: const char *domainname;
77: {
78: struct loaded_l10nfile *retval;
79: const char *language;
80: const char *modifier;
81: const char *territory;
82: const char *codeset;
83: const char *normalized_codeset;
84: const char *special;
85: const char *sponsor;
86: const char *revision;
87: const char *alias_value;
88: int mask;
89:
90: /* LOCALE can consist of up to four recognized parts for the XPG syntax:
91:
92: language[_territory[.codeset]][@modifier]
93:
94: and six parts for the CEN syntax:
95:
96: language[_territory][+audience][+special][,[sponsor][_revision]]
97:
98: Beside the first all of them are allowed to be missing. If the
99: full specified locale is not found, the less specific one are
100: looked for. The various part will be stripped of according to
101: the following order:
102: (1) revision
103: (2) sponsor
104: (3) special
105: (4) codeset
106: (5) normalized codeset
107: (6) territory
108: (7) audience/modifier
109: */
110:
111: /* If we have already tested for this locale entry there has to
112: be one data set in the list of loaded domains. */
113: retval = _nl_make_l10nflist (&_nl_loaded_domains, dirname,
114: strlen (dirname) + 1, 0, locale, NULL, NULL,
115: NULL, NULL, NULL, NULL, NULL, domainname, 0);
116: if (retval != NULL)
117: {
118: /* We know something about this locale. */
119: int cnt;
120:
121: if (retval->decided == 0)
122: _nl_load_domain (retval);
123:
124: if (retval->data != NULL)
125: return retval;
126:
127: for (cnt = 0; retval->successor[cnt] != NULL; ++cnt)
128: {
129: if (retval->successor[cnt]->decided == 0)
130: _nl_load_domain (retval->successor[cnt]);
131:
132: if (retval->successor[cnt]->data != NULL)
133: break;
134: }
135: return cnt >= 0 ? retval : NULL;
136: /* NOTREACHED */
137: }
138:
139: /* See whether the locale value is an alias. If yes its value
140: *overwrites* the alias name. No test for the original value is
141: done. */
142: alias_value = _nl_expand_alias (locale);
143: if (alias_value != NULL)
144: {
145: size_t len = strlen (alias_value) + 1;
146: locale = (char *) malloc (len);
147: if (locale == NULL)
148: return NULL;
149:
150: memcpy (locale, alias_value, len);
151: }
152:
153: /* Now we determine the single parts of the locale name. First
154: look for the language. Termination symbols are `_' and `@' if
155: we use XPG4 style, and `_', `+', and `,' if we use CEN syntax. */
156: mask = _nl_explode_name (locale, &language, &modifier, &territory,
157: &codeset, &normalized_codeset, &special,
158: &sponsor, &revision);
159:
160: /* Create all possible locale entries which might be interested in
161: generalization. */
162: retval = _nl_make_l10nflist (&_nl_loaded_domains, dirname,
163: strlen (dirname) + 1, mask, language, territory,
164: codeset, normalized_codeset, modifier, special,
165: sponsor, revision, domainname, 1);
166: if (retval == NULL)
167: /* This means we are out of core. */
168: return NULL;
169:
170: if (retval->decided == 0)
171: _nl_load_domain (retval);
172: if (retval->data == NULL)
173: {
174: int cnt;
175: for (cnt = 0; retval->successor[cnt] != NULL; ++cnt)
176: {
177: if (retval->successor[cnt]->decided == 0)
178: _nl_load_domain (retval->successor[cnt]);
179: if (retval->successor[cnt]->data != NULL)
180: break;
181: }
182: }
183:
184: /* The room for an alias was dynamically allocated. Free it now. */
185: if (alias_value != NULL)
186: free (locale);
187:
188: return retval;
189: }
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