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-rw-r--r--intl/finddomain.c189
1 files changed, 189 insertions, 0 deletions
diff --git a/intl/finddomain.c b/intl/finddomain.c
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+/* Handle list of needed message catalogs
+ Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
+ Written by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU 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 General Public License for more details.
+
+ You should have received a copy of the GNU 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 <ctype.h>
+#include <errno.h>
+#include <stdio.h>
+#include <sys/types.h>
+
+#if defined STDC_HEADERS || defined _LIBC
+# include <stdlib.h>
+#else
+# ifdef HAVE_MALLOC_H
+# include <malloc.h>
+# else
+void free ();
+# endif
+#endif
+
+#if defined HAVE_STRING_H || defined _LIBC
+# include <string.h>
+#else
+# include <strings.h>
+# ifndef memcpy
+# define memcpy(Dst, Src, Num) bcopy (Src, Dst, Num)
+# endif
+#endif
+#if !HAVE_STRCHR && !defined _LIBC
+# ifndef strchr
+# define strchr index
+# endif
+#endif
+
+#if defined HAVE_UNISTD_H || defined _LIBC
+# include <unistd.h>
+#endif
+
+#include "gettext.h"
+#include "gettextP.h"
+#ifdef _LIBC
+# include <libintl.h>
+#else
+# include "libgettext.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 *
+_nl_find_domain (dirname, locale, domainname)
+ const char *dirname;
+ char *locale;
+ const char *domainname;
+{
+ 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 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 part will be stripped of 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);
+
+ 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]);
+
+ 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)
+ {
+ size_t len = strlen (alias_value) + 1;
+ locale = (char *) malloc (len);
+ if (locale == NULL)
+ return NULL;
+
+ memcpy (locale, alias_value, len);
+ }
+
+ /* 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);
+ 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]);
+ if (retval->successor[cnt]->data != NULL)
+ break;
+ }
+ }
+
+ /* The room for an alias was dynamically allocated. Free it now. */
+ if (alias_value != NULL)
+ free (locale);
+
+ return retval;
+}