source: trunk/third/gnome-core/intl/finddomain.c @ 15328

Revision 15328, 5.7 KB checked in by ghudson, 24 years ago (diff)
This commit was generated by cvs2svn to compensate for changes in r15327, which included commits to RCS files with non-trunk default branches.
Line 
1/* Handle list of needed message catalogs
2   Copyright (C) 1995, 1996, 1997, 1998 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
34void 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.  */
66static 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.  */
72struct loaded_l10nfile *
73internal_function
74_nl_find_domain (dirname, locale, domainname)
75     const char *dirname;
76     char *locale;
77     const char *domainname;
78{
79  struct loaded_l10nfile *retval;
80  const char *language;
81  const char *modifier;
82  const char *territory;
83  const char *codeset;
84  const char *normalized_codeset;
85  const char *special;
86  const char *sponsor;
87  const char *revision;
88  const char *alias_value;
89  int mask;
90
91  /* LOCALE can consist of up to four recognized parts for the XPG syntax:
92
93                language[_territory[.codeset]][@modifier]
94
95     and six parts for the CEN syntax:
96
97        language[_territory][+audience][+special][,[sponsor][_revision]]
98
99     Beside the first part all of them are allowed to be missing.  If
100     the full specified locale is not found, the less specific one are
101     looked for.  The various parts will be stripped off according to
102     the following order:
103                (1) revision
104                (2) sponsor
105                (3) special
106                (4) codeset
107                (5) normalized codeset
108                (6) territory
109                (7) audience/modifier
110   */
111
112  /* If we have already tested for this locale entry there has to
113     be one data set in the list of loaded domains.  */
114  retval = _nl_make_l10nflist (&_nl_loaded_domains, dirname,
115                               strlen (dirname) + 1, 0, locale, NULL, NULL,
116                               NULL, NULL, NULL, NULL, NULL, domainname, 0);
117  if (retval != NULL)
118    {
119      /* We know something about this locale.  */
120      int cnt;
121
122      if (retval->decided == 0)
123        _nl_load_domain (retval);
124
125      if (retval->data != NULL)
126        return retval;
127
128      for (cnt = 0; retval->successor[cnt] != NULL; ++cnt)
129        {
130          if (retval->successor[cnt]->decided == 0)
131            _nl_load_domain (retval->successor[cnt]);
132
133          if (retval->successor[cnt]->data != NULL)
134            break;
135        }
136      return cnt >= 0 ? retval : NULL;
137      /* NOTREACHED */
138    }
139
140  /* See whether the locale value is an alias.  If yes its value
141     *overwrites* the alias name.  No test for the original value is
142     done.  */
143  alias_value = _nl_expand_alias (locale);
144  if (alias_value != NULL)
145    {
146#if defined _LIBC || defined HAVE_STRDUP
147      locale = strdup (alias_value);
148      if (locale == NULL)
149        return NULL;
150#else
151      size_t len = strlen (alias_value) + 1;
152      locale = (char *) malloc (len);
153      if (locale == NULL)
154        return NULL;
155
156      memcpy (locale, alias_value, len);
157#endif
158    }
159
160  /* Now we determine the single parts of the locale name.  First
161     look for the language.  Termination symbols are `_' and `@' if
162     we use XPG4 style, and `_', `+', and `,' if we use CEN syntax.  */
163  mask = _nl_explode_name (locale, &language, &modifier, &territory,
164                           &codeset, &normalized_codeset, &special,
165                           &sponsor, &revision);
166
167  /* Create all possible locale entries which might be interested in
168     generalization.  */
169  retval = _nl_make_l10nflist (&_nl_loaded_domains, dirname,
170                               strlen (dirname) + 1, mask, language, territory,
171                               codeset, normalized_codeset, modifier, special,
172                               sponsor, revision, domainname, 1);
173  if (retval == NULL)
174    /* This means we are out of core.  */
175    return NULL;
176
177  if (retval->decided == 0)
178    _nl_load_domain (retval);
179  if (retval->data == NULL)
180    {
181      int cnt;
182      for (cnt = 0; retval->successor[cnt] != NULL; ++cnt)
183        {
184          if (retval->successor[cnt]->decided == 0)
185            _nl_load_domain (retval->successor[cnt]);
186          if (retval->successor[cnt]->data != NULL)
187            break;
188        }
189    }
190
191  /* The room for an alias was dynamically allocated.  Free it now.  */
192  if (alias_value != NULL)
193    free (locale);
194
195  return retval;
196}
197
198
199#ifdef _LIBC
200static void __attribute__ ((unused))
201free_mem (void)
202{
203  struct loaded_l10nfile *runp = _nl_loaded_domains;
204
205  while (runp != NULL)
206    {
207      struct loaded_l10nfile *here = runp;
208      if (runp->data != NULL)
209        _nl_unload_domain ((struct loaded_domain *) runp->data);
210      runp = runp->next;
211      free (here);
212    }
213}
214
215text_set_element (__libc_subfreeres, free_mem);
216#endif
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