finddomain.c
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上传日期:2013-03-10
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Visual C++
- /* Handle list of needed message catalogs
- Copyright (C) 1995-1999, 2000, 2001 Free Software Foundation, Inc.
- Written by Ulrich Drepper <drepper@gnu.org>, 1995.
- This program is free software; you can redistribute it and/or modify it
- under the terms of the GNU Library General Public License as published
- by the Free Software Foundation; either version 2, or (at your option)
- any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
- You should have received a copy of the GNU Library General Public
- License along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
- USA. */
- #ifdef HAVE_CONFIG_H
- # include <config.h>
- #endif
- #include <stdio.h>
- #include <sys/types.h>
- #include <stdlib.h>
- #include <string.h>
- #if defined HAVE_UNISTD_H || defined _LIBC
- # include <unistd.h>
- #endif
- #include "gettextP.h"
- #ifdef _LIBC
- # include <libintl.h>
- #else
- # include "libgnuintl.h"
- #endif
- /* @@ end of prolog @@ */
- /* List of already loaded domains. */
- static struct loaded_l10nfile *_nl_loaded_domains;
- /* Return a data structure describing the message catalog described by
- the DOMAINNAME and CATEGORY parameters with respect to the currently
- established bindings. */
- struct loaded_l10nfile *
- internal_function
- _nl_find_domain (dirname, locale, domainname, domainbinding)
- const char *dirname;
- char *locale;
- const char *domainname;
- struct binding *domainbinding;
- {
- struct loaded_l10nfile *retval;
- const char *language;
- const char *modifier;
- const char *territory;
- const char *codeset;
- const char *normalized_codeset;
- const char *special;
- const char *sponsor;
- const char *revision;
- const char *alias_value;
- int mask;
- /* LOCALE can consist of up to four recognized parts for the XPG syntax:
- language[_territory[.codeset]][@modifier]
- and six parts for the CEN syntax:
- language[_territory][+audience][+special][,[sponsor][_revision]]
- Beside the first part all of them are allowed to be missing. If
- the full specified locale is not found, the less specific one are
- looked for. The various parts will be stripped off according to
- the following order:
- (1) revision
- (2) sponsor
- (3) special
- (4) codeset
- (5) normalized codeset
- (6) territory
- (7) audience/modifier
- */
- /* If we have already tested for this locale entry there has to
- be one data set in the list of loaded domains. */
- retval = _nl_make_l10nflist (&_nl_loaded_domains, dirname,
- strlen (dirname) + 1, 0, locale, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, domainname, 0);
- if (retval != NULL)
- {
- /* We know something about this locale. */
- int cnt;
- if (retval->decided == 0)
- _nl_load_domain (retval, domainbinding);
- if (retval->data != NULL)
- return retval;
- for (cnt = 0; retval->successor[cnt] != NULL; ++cnt)
- {
- if (retval->successor[cnt]->decided == 0)
- _nl_load_domain (retval->successor[cnt], domainbinding);
- if (retval->successor[cnt]->data != NULL)
- break;
- }
- return cnt >= 0 ? retval : NULL;
- /* NOTREACHED */
- }
- /* See whether the locale value is an alias. If yes its value
- *overwrites* the alias name. No test for the original value is
- done. */
- alias_value = _nl_expand_alias (locale);
- if (alias_value != NULL)
- {
- #if defined _LIBC || defined HAVE_STRDUP
- locale = strdup (alias_value);
- if (locale == NULL)
- return NULL;
- #else
- size_t len = strlen (alias_value) + 1;
- locale = (char *) malloc (len);
- if (locale == NULL)
- return NULL;
- memcpy (locale, alias_value, len);
- #endif
- }
- /* Now we determine the single parts of the locale name. First
- look for the language. Termination symbols are `_' and `@' if
- we use XPG4 style, and `_', `+', and `,' if we use CEN syntax. */
- mask = _nl_explode_name (locale, &language, &modifier, &territory,
- &codeset, &normalized_codeset, &special,
- &sponsor, &revision);
- /* Create all possible locale entries which might be interested in
- generalization. */
- retval = _nl_make_l10nflist (&_nl_loaded_domains, dirname,
- strlen (dirname) + 1, mask, language, territory,
- codeset, normalized_codeset, modifier, special,
- sponsor, revision, domainname, 1);
- if (retval == NULL)
- /* This means we are out of core. */
- return NULL;
- if (retval->decided == 0)
- _nl_load_domain (retval, domainbinding);
- if (retval->data == NULL)
- {
- int cnt;
- for (cnt = 0; retval->successor[cnt] != NULL; ++cnt)
- {
- if (retval->successor[cnt]->decided == 0)
- _nl_load_domain (retval->successor[cnt], domainbinding);
- if (retval->successor[cnt]->data != NULL)
- break;
- }
- }
- /* The room for an alias was dynamically allocated. Free it now. */
- if (alias_value != NULL)
- free (locale);
- /* The space for normalized_codeset is dynamically allocated. Free it. */
- if (mask & XPG_NORM_CODESET)
- free ((void *) normalized_codeset);
- return retval;
- }
- #ifdef _LIBC
- static void __attribute__ ((unused))
- free_mem (void)
- {
- struct loaded_l10nfile *runp = _nl_loaded_domains;
- while (runp != NULL)
- {
- struct loaded_l10nfile *here = runp;
- if (runp->data != NULL)
- _nl_unload_domain ((struct loaded_domain *) runp->data);
- runp = runp->next;
- free ((char *) here->filename);
- free (here);
- }
- }
- text_set_element (__libc_subfreeres, free_mem);
- #endif