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134 lines
3.3 KiB
C
134 lines
3.3 KiB
C
/* Copyright (C) 1995-2015 Free Software Foundation, Inc.
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Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include "loadinfo.h"
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/* On some strange systems still no definition of NULL is found. Sigh! */
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#ifndef NULL
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# if defined __STDC__ && __STDC__
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# define NULL ((void *) 0)
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# else
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# define NULL 0
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# endif
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#endif
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/* @@ end of prolog @@ */
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/* Split a locale name NAME into a leading language part and all the
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rest. Return a pointer to the first character after the language,
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i.e. to the first byte of the rest. */
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static char *_nl_find_language (const char *name);
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static char *
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_nl_find_language (const char *name)
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{
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while (name[0] != '\0' && name[0] != '_' && name[0] != '@' && name[0] != '.')
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++name;
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return (char *) name;
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}
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int
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_nl_explode_name (char *name,
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const char **language, const char **modifier,
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const char **territory, const char **codeset,
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const char **normalized_codeset)
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{
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char *cp;
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int mask;
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*modifier = NULL;
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*territory = NULL;
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*codeset = NULL;
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*normalized_codeset = NULL;
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/* Now we determine the single parts of the locale name. First
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look for the language. Termination symbols are `_', '.', and `@'. */
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mask = 0;
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*language = cp = name;
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cp = _nl_find_language (*language);
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if (*language == cp)
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/* This does not make sense: language has to be specified. Use
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this entry as it is without exploding. Perhaps it is an alias. */
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cp = strchr (*language, '\0');
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else
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{
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if (cp[0] == '_')
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{
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/* Next is the territory. */
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cp[0] = '\0';
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*territory = ++cp;
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while (cp[0] != '\0' && cp[0] != '.' && cp[0] != '@')
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++cp;
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mask |= XPG_TERRITORY;
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}
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if (cp[0] == '.')
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{
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/* Next is the codeset. */
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cp[0] = '\0';
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*codeset = ++cp;
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while (cp[0] != '\0' && cp[0] != '@')
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++cp;
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mask |= XPG_CODESET;
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if (*codeset != cp && (*codeset)[0] != '\0')
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{
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*normalized_codeset = _nl_normalize_codeset (*codeset,
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cp - *codeset);
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if (*normalized_codeset == NULL)
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return -1;
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else if (strcmp (*codeset, *normalized_codeset) == 0)
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free ((char *) *normalized_codeset);
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else
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mask |= XPG_NORM_CODESET;
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}
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}
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}
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if (cp[0] == '@')
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{
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/* Next is the modifier. */
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cp[0] = '\0';
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*modifier = ++cp;
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if (cp[0] != '\0')
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mask |= XPG_MODIFIER;
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}
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if (*territory != NULL && (*territory)[0] == '\0')
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mask &= ~XPG_TERRITORY;
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if (*codeset != NULL && (*codeset)[0] == '\0')
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mask &= ~XPG_CODESET;
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return mask;
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}
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