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/* Copyright (C) 1995-2016, 2020 Free Software Foundation, Inc.
Contributed 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 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.
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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#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 @@ */
int
_nl_explode_name (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;
/* Determine the individual parts of the locale name.
Accept the XPG syntax
language[_territory][.codeset][@modifier]
On AIX systems, also accept the same syntax with an uppercased language,
and a syntax similar to RFC 5646:
language[_script]_territory[.codeset]
where script is a four-letter code for a script, per ISO 15924.
*/
mask = 0;
/* First look for the language. Termination symbols are `_', '.', and `@'. */
*language = name;
cp = name;
while (cp[0] != '\0' && cp[0] != '_' && cp[0] != '@' && cp[0] != '.')
++cp;
if (cp == name)
/* This does not make sense: language has to be specified. Use
this entry as it is without exploding. Perhaps it is an alias. */
cp = strchr (name, '\0');
else
{
if (cp[0] == '_')
{
*cp++ = '\0';
#if defined _AIX
/* Lowercase the language. */
{
char *lcp;
for (lcp = name; lcp < cp; lcp++)
if (*lcp >= 'A' && *lcp <= 'Z')
*lcp += 'a' - 'A';
}
/* Next is the script or the territory. It depends on whether
there is another '_'. */
char *next = cp;
while (cp[0] != '\0' && cp[0] != '_' && cp[0] != '@' && cp[0] != '.')
++cp;
if (cp[0] == '_')
{
*cp++ = '\0';
/* Next is the script. Translate the script to a modifier.
We don't need to support all of ISO 15924 here, only those
scripts that actually occur:
Latn -> latin
Cyrl -> cyrillic
Guru -> gurmukhi
Hans -> (omitted, redundant with the territory CN or SG)
Hant -> (omitted, redundant with the territory TW or HK) */
if (strcmp (next, "Latn") == 0)
*modifier = "latin";
else if (strcmp (next, "Cyrl") == 0)
*modifier = "cyrillic";
else if (strcmp (next, "Guru") == 0)
*modifier = "gurmukhi";
else if (!(strcmp (next, "Hans") == 0
|| strcmp (next, "Hant") == 0))
*modifier = next;
if (*modifier != NULL && (*modifier)[0] != '\0')
mask |= XPG_MODIFIER;
}
else
cp = next;
#endif
/* Next is the territory. */
*territory = cp;
while (cp[0] != '\0' && cp[0] != '.' && cp[0] != '@')
++cp;
mask |= XPG_TERRITORY;
}
if (cp[0] == '.')
{
/* Next is the codeset. */
*cp++ = '\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';
*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;
}
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