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Member "tin-2.4.1/intl/finddomain.c" (28 Aug 2013, 5736 Bytes) of package /linux/misc/tin-2.4.1.tar.gz:


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    1 /* Handle list of needed message catalogs
    2    Copyright (C) 1995-1999, 2000, 2001 Free Software Foundation, Inc.
    3    Written by Ulrich Drepper <drepper@gnu.org>, 1995.
    4 
    5    This program is free software; you can redistribute it and/or modify it
    6    under the terms of the GNU Library General Public License as published
    7    by 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 GNU
   13    Library General Public License for more details.
   14 
   15    You should have received a copy of the GNU Library General Public
   16    License along with this program; if not, write to the Free Software
   17    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
   18    USA.  */
   19 
   20 #ifdef HAVE_CONFIG_H
   21 # include <autoconf.h>
   22 #endif
   23 
   24 #include <stdio.h>
   25 #include <sys/types.h>
   26 #include <stdlib.h>
   27 #include <string.h>
   28 
   29 #if defined HAVE_UNISTD_H || defined _LIBC
   30 # include <unistd.h>
   31 #endif
   32 
   33 #include "gettextP.h"
   34 #ifdef _LIBC
   35 # include <libintl.h>
   36 #else
   37 # include "libgnuintl.h"
   38 #endif
   39 
   40 /* @@ end of prolog @@ */
   41 /* List of already loaded domains.  */
   42 static struct loaded_l10nfile *_nl_loaded_domains;
   43 
   44 
   45 /* Return a data structure describing the message catalog described by
   46    the DOMAINNAME and CATEGORY parameters with respect to the currently
   47    established bindings.  */
   48 struct loaded_l10nfile *
   49 internal_function
   50 _nl_find_domain (dirname, locale, domainname, domainbinding)
   51      const char *dirname;
   52      char *locale;
   53      const char *domainname;
   54      struct binding *domainbinding;
   55 {
   56   struct loaded_l10nfile *retval;
   57   const char *language;
   58   const char *modifier;
   59   const char *territory;
   60   const char *codeset;
   61   const char *normalized_codeset;
   62   const char *special;
   63   const char *sponsor;
   64   const char *revision;
   65   const char *alias_value;
   66   int mask;
   67 
   68   /* LOCALE can consist of up to four recognized parts for the XPG syntax:
   69 
   70         language[_territory[.codeset]][@modifier]
   71 
   72      and six parts for the CEN syntax:
   73 
   74     language[_territory][+audience][+special][,[sponsor][_revision]]
   75 
   76      Beside the first part all of them are allowed to be missing.  If
   77      the full specified locale is not found, the less specific one are
   78      looked for.  The various parts will be stripped off according to
   79      the following order:
   80         (1) revision
   81         (2) sponsor
   82         (3) special
   83         (4) codeset
   84         (5) normalized codeset
   85         (6) territory
   86         (7) audience/modifier
   87    */
   88 
   89   /* If we have already tested for this locale entry there has to
   90      be one data set in the list of loaded domains.  */
   91   retval = _nl_make_l10nflist (&_nl_loaded_domains, dirname,
   92                    strlen (dirname) + 1, 0, locale, NULL, NULL,
   93                    NULL, NULL, NULL, NULL, NULL, domainname, 0);
   94   if (retval != NULL)
   95     {
   96       /* We know something about this locale.  */
   97       int cnt;
   98 
   99       if (retval->decided == 0)
  100     _nl_load_domain (retval, domainbinding);
  101 
  102       if (retval->data != NULL)
  103     return retval;
  104 
  105       for (cnt = 0; retval->successor[cnt] != NULL; ++cnt)
  106     {
  107       if (retval->successor[cnt]->decided == 0)
  108         _nl_load_domain (retval->successor[cnt], domainbinding);
  109 
  110       if (retval->successor[cnt]->data != NULL)
  111         break;
  112     }
  113       return cnt >= 0 ? retval : NULL;
  114       /* NOTREACHED */
  115     }
  116 
  117   /* See whether the locale value is an alias.  If yes its value
  118      *overwrites* the alias name.  No test for the original value is
  119      done.  */
  120   alias_value = _nl_expand_alias (locale);
  121   if (alias_value != NULL)
  122     {
  123 #if defined _LIBC || defined HAVE_STRDUP
  124       locale = strdup (alias_value);
  125       if (locale == NULL)
  126     return NULL;
  127 #else
  128       size_t len = strlen (alias_value) + 1;
  129       locale = (char *) malloc (len);
  130       if (locale == NULL)
  131     return NULL;
  132 
  133       memcpy (locale, alias_value, len);
  134 #endif
  135     }
  136 
  137   /* Now we determine the single parts of the locale name.  First
  138      look for the language.  Termination symbols are `_' and `@' if
  139      we use XPG4 style, and `_', `+', and `,' if we use CEN syntax.  */
  140   mask = _nl_explode_name (locale, &language, &modifier, &territory,
  141                &codeset, &normalized_codeset, &special,
  142                &sponsor, &revision);
  143 
  144   /* Create all possible locale entries which might be interested in
  145      generalization.  */
  146   retval = _nl_make_l10nflist (&_nl_loaded_domains, dirname,
  147                    strlen (dirname) + 1, mask, language, territory,
  148                    codeset, normalized_codeset, modifier, special,
  149                    sponsor, revision, domainname, 1);
  150   if (retval == NULL)
  151     /* This means we are out of core.  */
  152     return NULL;
  153 
  154   if (retval->decided == 0)
  155     _nl_load_domain (retval, domainbinding);
  156   if (retval->data == NULL)
  157     {
  158       int cnt;
  159       for (cnt = 0; retval->successor[cnt] != NULL; ++cnt)
  160     {
  161       if (retval->successor[cnt]->decided == 0)
  162         _nl_load_domain (retval->successor[cnt], domainbinding);
  163       if (retval->successor[cnt]->data != NULL)
  164         break;
  165     }
  166     }
  167 
  168   /* The room for an alias was dynamically allocated.  Free it now.  */
  169   if (alias_value != NULL)
  170     free (locale);
  171 
  172   /* The space for normalized_codeset is dynamically allocated.  Free it.  */
  173   if (mask & XPG_NORM_CODESET)
  174     free ((void *) normalized_codeset);
  175 
  176   return retval;
  177 }
  178 
  179 
  180 #ifdef _LIBC
  181 static void __attribute__ ((unused))
  182 free_mem (void)
  183 {
  184   struct loaded_l10nfile *runp = _nl_loaded_domains;
  185 
  186   while (runp != NULL)
  187     {
  188       struct loaded_l10nfile *here = runp;
  189       if (runp->data != NULL)
  190     _nl_unload_domain ((struct loaded_domain *) runp->data);
  191       runp = runp->next;
  192       free ((char *) here->filename);
  193       free (here);
  194     }
  195 }
  196 
  197 text_set_element (__libc_subfreeres, free_mem);
  198 #endif