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glibc/intl/explodename.c
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/* Copyright (C) 1995-2002, 2003, 2006, 2007 Free Software Foundation, Inc. | |
This file is part of the GNU C Library. | |
Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995. | |
The GNU C Library is free software; you can redistribute it and/or | |
modify it under the terms of the GNU Lesser General Public | |
License as published by the Free Software Foundation; either | |
version 2.1 of the License, or (at your option) any later version. | |
The GNU C Library 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 | |
Lesser General Public License for more details. | |
You should have received a copy of the GNU Lesser General Public | |
License along with the GNU C Library; 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 <stdlib.h> | |
#include <string.h> | |
#include <sys/types.h> | |
#include "loadinfo.h" | |
/* On some strange systems still no definition of NULL is found. Sigh! */ | |
#ifndef NULL | |
# if defined __STDC__ && __STDC__ | |
# define NULL ((void *) 0) | |
# else | |
# define NULL 0 | |
# endif | |
#endif | |
/* @@ end of prolog @@ */ | |
static char *_nl_find_language PARAMS ((const char *name)); | |
static char * | |
_nl_find_language (name) | |
const char *name; | |
{ | |
while (name[0] != '\0' && name[0] != '_' && name[0] != '@' && name[0] != '.') | |
++name; | |
return (char *) name; | |
} | |
int | |
_nl_explode_name (name, language, modifier, territory, codeset, | |
normalized_codeset) | |
char *name; | |
const char **language; | |
const char **modifier; | |
const char **territory; | |
const char **codeset; | |
const char **normalized_codeset; | |
{ | |
char *cp; | |
int mask; | |
*modifier = NULL; | |
*territory = NULL; | |
*codeset = NULL; | |
*normalized_codeset = NULL; | |
/* Now we determine the single parts of the locale name. First | |
look for the language. Termination symbols are `_', '.', and `@'. */ | |
mask = 0; | |
*language = cp = name; | |
cp = _nl_find_language (*language); | |
if (*language == cp) | |
/* This does not make sense: language has to be specified. Use | |
this entry as it is without exploding. Perhaps it is an alias. */ | |
cp = __rawmemchr (*language, '\0'); | |
else if (cp[0] != '@') | |
{ | |
if (cp[0] == '_') | |
{ | |
/* Next is the territory. */ | |
cp[0] = '\0'; | |
*territory = ++cp; | |
while (cp[0] != '\0' && cp[0] != '.' && cp[0] != '@') | |
++cp; | |
mask |= XPG_TERRITORY; | |
} | |
if (cp[0] == '.') | |
{ | |
/* Next is the codeset. */ | |
cp[0] = '\0'; | |
*codeset = ++cp; | |
while (cp[0] != '\0' && cp[0] != '@') | |
++cp; | |
mask |= XPG_CODESET; | |
if (*codeset != cp && (*codeset)[0] != '\0') | |
{ | |
*normalized_codeset = _nl_normalize_codeset (*codeset, | |
cp - *codeset); | |
if (*normalized_codeset == NULL) | |
return -1; | |
else if (strcmp (*codeset, *normalized_codeset) == 0) | |
free ((char *) *normalized_codeset); | |
else | |
mask |= XPG_NORM_CODESET; | |
} | |
} | |
} | |
if (cp[0] == '@') | |
{ | |
/* Next is the modifier. */ | |
cp[0] = '\0'; | |
*modifier = ++cp; | |
if (cp[0] != '\0') | |
mask |= XPG_MODIFIER; | |
} | |
if (*territory != NULL && (*territory)[0] == '\0') | |
mask &= ~XPG_TERRITORY; | |
if (*codeset != NULL && (*codeset)[0] == '\0') | |
mask &= ~XPG_CODESET; | |
return mask; | |
} |