/* Determine a canonical name for the current locale's character encoding.
|
/* Determine a canonical name for the current locale's character encoding.
|
|
|
Copyright (C) 2000-2003 Free Software Foundation, Inc.
|
Copyright (C) 2000-2003 Free Software Foundation, Inc.
|
|
|
This program is free software; you can redistribute it and/or modify it
|
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
|
under the terms of the GNU Library General Public License as published
|
by the Free Software Foundation; either version 2, or (at your option)
|
by the Free Software Foundation; either version 2, or (at your option)
|
any later version.
|
any later version.
|
|
|
This program is distributed in the hope that it will be useful,
|
This program is distributed in the hope that it will be useful,
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
Library General Public License for more details.
|
Library General Public License for more details.
|
|
|
You should have received a copy of the GNU Library General Public
|
You should have received a copy of the GNU Library General Public
|
License along with this program; if not, write to the Free Software
|
License along with this program; if not, write to the Free Software
|
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301,
|
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301,
|
USA. */
|
USA. */
|
|
|
/* Written by Bruno Haible <bruno@clisp.org>. */
|
/* Written by Bruno Haible <bruno@clisp.org>. */
|
|
|
#ifdef HAVE_CONFIG_H
|
#ifdef HAVE_CONFIG_H
|
# include <config.h>
|
# include <config.h>
|
#endif
|
#endif
|
|
|
/* Specification. */
|
/* Specification. */
|
#include "localcharset.h"
|
#include "localcharset.h"
|
|
|
#if HAVE_STDDEF_H
|
#if HAVE_STDDEF_H
|
# include <stddef.h>
|
# include <stddef.h>
|
#endif
|
#endif
|
|
|
#include <stdio.h>
|
#include <stdio.h>
|
#if HAVE_STRING_H
|
#if HAVE_STRING_H
|
# include <string.h>
|
# include <string.h>
|
#else
|
#else
|
# include <strings.h>
|
# include <strings.h>
|
#endif
|
#endif
|
#if HAVE_STDLIB_H
|
#if HAVE_STDLIB_H
|
# include <stdlib.h>
|
# include <stdlib.h>
|
#endif
|
#endif
|
|
|
#if defined _WIN32 || defined __WIN32__
|
#if defined _WIN32 || defined __WIN32__
|
# undef WIN32 /* avoid warning on mingw32 */
|
# undef WIN32 /* avoid warning on mingw32 */
|
# define WIN32
|
# define WIN32
|
#endif
|
#endif
|
|
|
#if defined __EMX__
|
#if defined __EMX__
|
/* Assume EMX program runs on OS/2, even if compiled under DOS. */
|
/* Assume EMX program runs on OS/2, even if compiled under DOS. */
|
# define OS2
|
# define OS2
|
#endif
|
#endif
|
|
|
#if !defined WIN32
|
#if !defined WIN32
|
# if HAVE_LANGINFO_CODESET
|
# if HAVE_LANGINFO_CODESET
|
# include <langinfo.h>
|
# include <langinfo.h>
|
# else
|
# else
|
# if HAVE_SETLOCALE
|
# if HAVE_SETLOCALE
|
# include <locale.h>
|
# include <locale.h>
|
# endif
|
# endif
|
# endif
|
# endif
|
#elif defined WIN32
|
#elif defined WIN32
|
# define WIN32_LEAN_AND_MEAN
|
# define WIN32_LEAN_AND_MEAN
|
# include <windows.h>
|
# include <windows.h>
|
#endif
|
#endif
|
#if defined OS2
|
#if defined OS2
|
# define INCL_DOS
|
# define INCL_DOS
|
# include <os2.h>
|
# include <os2.h>
|
#endif
|
#endif
|
|
|
#if ENABLE_RELOCATABLE
|
#if ENABLE_RELOCATABLE
|
# include "relocatable.h"
|
# include "relocatable.h"
|
#else
|
#else
|
# define relocate(pathname) (pathname)
|
# define relocate(pathname) (pathname)
|
#endif
|
#endif
|
|
|
#if defined _WIN32 || defined __WIN32__ || defined __EMX__ || defined __DJGPP__
|
#if defined _WIN32 || defined __WIN32__ || defined __EMX__ || defined __DJGPP__
|
/* Win32, OS/2, DOS */
|
/* Win32, OS/2, DOS */
|
# define ISSLASH(C) ((C) == '/' || (C) == '\\')
|
# define ISSLASH(C) ((C) == '/' || (C) == '\\')
|
#endif
|
#endif
|
|
|
#ifndef DIRECTORY_SEPARATOR
|
#ifndef DIRECTORY_SEPARATOR
|
# define DIRECTORY_SEPARATOR '/'
|
# define DIRECTORY_SEPARATOR '/'
|
#endif
|
#endif
|
|
|
#ifndef ISSLASH
|
#ifndef ISSLASH
|
# define ISSLASH(C) ((C) == DIRECTORY_SEPARATOR)
|
# define ISSLASH(C) ((C) == DIRECTORY_SEPARATOR)
|
#endif
|
#endif
|
|
|
#ifdef HAVE_GETC_UNLOCKED
|
#ifdef HAVE_GETC_UNLOCKED
|
# undef getc
|
# undef getc
|
# define getc getc_unlocked
|
# define getc getc_unlocked
|
#endif
|
#endif
|
|
|
/* The following static variable is declared 'volatile' to avoid a
|
/* The following static variable is declared 'volatile' to avoid a
|
possible multithread problem in the function get_charset_aliases. If we
|
possible multithread problem in the function get_charset_aliases. If we
|
are running in a threaded environment, and if two threads initialize
|
are running in a threaded environment, and if two threads initialize
|
'charset_aliases' simultaneously, both will produce the same value,
|
'charset_aliases' simultaneously, both will produce the same value,
|
and everything will be ok if the two assignments to 'charset_aliases'
|
and everything will be ok if the two assignments to 'charset_aliases'
|
are atomic. But I don't know what will happen if the two assignments mix. */
|
are atomic. But I don't know what will happen if the two assignments mix. */
|
#if __STDC__ != 1
|
#if __STDC__ != 1
|
# define volatile /* empty */
|
# define volatile /* empty */
|
#endif
|
#endif
|
/* Pointer to the contents of the charset.alias file, if it has already been
|
/* Pointer to the contents of the charset.alias file, if it has already been
|
read, else NULL. Its format is:
|
read, else NULL. Its format is:
|
ALIAS_1 '\0' CANONICAL_1 '\0' ... ALIAS_n '\0' CANONICAL_n '\0' '\0' */
|
ALIAS_1 '\0' CANONICAL_1 '\0' ... ALIAS_n '\0' CANONICAL_n '\0' '\0' */
|
static const char * volatile charset_aliases;
|
static const char * volatile charset_aliases;
|
|
|
/* Return a pointer to the contents of the charset.alias file. */
|
/* Return a pointer to the contents of the charset.alias file. */
|
static const char *
|
static const char *
|
get_charset_aliases ()
|
get_charset_aliases ()
|
{
|
{
|
const char *cp;
|
const char *cp;
|
|
|
cp = charset_aliases;
|
cp = charset_aliases;
|
if (cp == NULL)
|
if (cp == NULL)
|
{
|
{
|
#if !(defined VMS || defined WIN32)
|
#if !(defined VMS || defined WIN32)
|
FILE *fp;
|
FILE *fp;
|
const char *dir = relocate (LIBDIR);
|
const char *dir = relocate (LIBDIR);
|
const char *base = "charset.alias";
|
const char *base = "charset.alias";
|
char *file_name;
|
char *file_name;
|
|
|
/* Concatenate dir and base into freshly allocated file_name. */
|
/* Concatenate dir and base into freshly allocated file_name. */
|
{
|
{
|
size_t dir_len = strlen (dir);
|
size_t dir_len = strlen (dir);
|
size_t base_len = strlen (base);
|
size_t base_len = strlen (base);
|
int add_slash = (dir_len > 0 && !ISSLASH (dir[dir_len - 1]));
|
int add_slash = (dir_len > 0 && !ISSLASH (dir[dir_len - 1]));
|
file_name = (char *) malloc (dir_len + add_slash + base_len + 1);
|
file_name = (char *) malloc (dir_len + add_slash + base_len + 1);
|
if (file_name != NULL)
|
if (file_name != NULL)
|
{
|
{
|
memcpy (file_name, dir, dir_len);
|
memcpy (file_name, dir, dir_len);
|
if (add_slash)
|
if (add_slash)
|
file_name[dir_len] = DIRECTORY_SEPARATOR;
|
file_name[dir_len] = DIRECTORY_SEPARATOR;
|
memcpy (file_name + dir_len + add_slash, base, base_len + 1);
|
memcpy (file_name + dir_len + add_slash, base, base_len + 1);
|
}
|
}
|
}
|
}
|
|
|
if (file_name == NULL || (fp = fopen (file_name, "r")) == NULL)
|
if (file_name == NULL || (fp = fopen (file_name, "r")) == NULL)
|
/* Out of memory or file not found, treat it as empty. */
|
/* Out of memory or file not found, treat it as empty. */
|
cp = "";
|
cp = "";
|
else
|
else
|
{
|
{
|
/* Parse the file's contents. */
|
/* Parse the file's contents. */
|
int c;
|
int c;
|
char buf1[50+1];
|
char buf1[50+1];
|
char buf2[50+1];
|
char buf2[50+1];
|
char *res_ptr = NULL;
|
char *res_ptr = NULL;
|
size_t res_size = 0;
|
size_t res_size = 0;
|
size_t l1, l2;
|
size_t l1, l2;
|
|
|
for (;;)
|
for (;;)
|
{
|
{
|
c = getc (fp);
|
c = getc (fp);
|
if (c == EOF)
|
if (c == EOF)
|
break;
|
break;
|
if (c == '\n' || c == ' ' || c == '\t')
|
if (c == '\n' || c == ' ' || c == '\t')
|
continue;
|
continue;
|
if (c == '#')
|
if (c == '#')
|
{
|
{
|
/* Skip comment, to end of line. */
|
/* Skip comment, to end of line. */
|
do
|
do
|
c = getc (fp);
|
c = getc (fp);
|
while (!(c == EOF || c == '\n'));
|
while (!(c == EOF || c == '\n'));
|
if (c == EOF)
|
if (c == EOF)
|
break;
|
break;
|
continue;
|
continue;
|
}
|
}
|
ungetc (c, fp);
|
ungetc (c, fp);
|
if (fscanf (fp, "%50s %50s", buf1, buf2) < 2)
|
if (fscanf (fp, "%50s %50s", buf1, buf2) < 2)
|
break;
|
break;
|
l1 = strlen (buf1);
|
l1 = strlen (buf1);
|
l2 = strlen (buf2);
|
l2 = strlen (buf2);
|
if (res_size == 0)
|
if (res_size == 0)
|
{
|
{
|
res_size = l1 + 1 + l2 + 1;
|
res_size = l1 + 1 + l2 + 1;
|
res_ptr = (char *) malloc (res_size + 1);
|
res_ptr = (char *) malloc (res_size + 1);
|
}
|
}
|
else
|
else
|
{
|
{
|
res_size += l1 + 1 + l2 + 1;
|
res_size += l1 + 1 + l2 + 1;
|
res_ptr = (char *) realloc (res_ptr, res_size + 1);
|
res_ptr = (char *) realloc (res_ptr, res_size + 1);
|
}
|
}
|
if (res_ptr == NULL)
|
if (res_ptr == NULL)
|
{
|
{
|
/* Out of memory. */
|
/* Out of memory. */
|
res_size = 0;
|
res_size = 0;
|
break;
|
break;
|
}
|
}
|
strcpy (res_ptr + res_size - (l2 + 1) - (l1 + 1), buf1);
|
strcpy (res_ptr + res_size - (l2 + 1) - (l1 + 1), buf1);
|
strcpy (res_ptr + res_size - (l2 + 1), buf2);
|
strcpy (res_ptr + res_size - (l2 + 1), buf2);
|
}
|
}
|
fclose (fp);
|
fclose (fp);
|
if (res_size == 0)
|
if (res_size == 0)
|
cp = "";
|
cp = "";
|
else
|
else
|
{
|
{
|
*(res_ptr + res_size) = '\0';
|
*(res_ptr + res_size) = '\0';
|
cp = res_ptr;
|
cp = res_ptr;
|
}
|
}
|
}
|
}
|
|
|
if (file_name != NULL)
|
if (file_name != NULL)
|
free (file_name);
|
free (file_name);
|
|
|
#else
|
#else
|
|
|
# if defined VMS
|
# if defined VMS
|
/* To avoid the troubles of an extra file charset.alias_vms in the
|
/* To avoid the troubles of an extra file charset.alias_vms in the
|
sources of many GNU packages, simply inline the aliases here. */
|
sources of many GNU packages, simply inline the aliases here. */
|
/* The list of encodings is taken from the OpenVMS 7.3-1 documentation
|
/* The list of encodings is taken from the OpenVMS 7.3-1 documentation
|
"Compaq C Run-Time Library Reference Manual for OpenVMS systems"
|
"Compaq C Run-Time Library Reference Manual for OpenVMS systems"
|
section 10.7 "Handling Different Character Sets". */
|
section 10.7 "Handling Different Character Sets". */
|
cp = "ISO8859-1" "\0" "ISO-8859-1" "\0"
|
cp = "ISO8859-1" "\0" "ISO-8859-1" "\0"
|
"ISO8859-2" "\0" "ISO-8859-2" "\0"
|
"ISO8859-2" "\0" "ISO-8859-2" "\0"
|
"ISO8859-5" "\0" "ISO-8859-5" "\0"
|
"ISO8859-5" "\0" "ISO-8859-5" "\0"
|
"ISO8859-7" "\0" "ISO-8859-7" "\0"
|
"ISO8859-7" "\0" "ISO-8859-7" "\0"
|
"ISO8859-8" "\0" "ISO-8859-8" "\0"
|
"ISO8859-8" "\0" "ISO-8859-8" "\0"
|
"ISO8859-9" "\0" "ISO-8859-9" "\0"
|
"ISO8859-9" "\0" "ISO-8859-9" "\0"
|
/* Japanese */
|
/* Japanese */
|
"eucJP" "\0" "EUC-JP" "\0"
|
"eucJP" "\0" "EUC-JP" "\0"
|
"SJIS" "\0" "SHIFT_JIS" "\0"
|
"SJIS" "\0" "SHIFT_JIS" "\0"
|
"DECKANJI" "\0" "DEC-KANJI" "\0"
|
"DECKANJI" "\0" "DEC-KANJI" "\0"
|
"SDECKANJI" "\0" "EUC-JP" "\0"
|
"SDECKANJI" "\0" "EUC-JP" "\0"
|
/* Chinese */
|
/* Chinese */
|
"eucTW" "\0" "EUC-TW" "\0"
|
"eucTW" "\0" "EUC-TW" "\0"
|
"DECHANYU" "\0" "DEC-HANYU" "\0"
|
"DECHANYU" "\0" "DEC-HANYU" "\0"
|
"DECHANZI" "\0" "GB2312" "\0"
|
"DECHANZI" "\0" "GB2312" "\0"
|
/* Korean */
|
/* Korean */
|
"DECKOREAN" "\0" "EUC-KR" "\0";
|
"DECKOREAN" "\0" "EUC-KR" "\0";
|
# endif
|
# endif
|
|
|
# if defined WIN32
|
# if defined WIN32
|
/* To avoid the troubles of installing a separate file in the same
|
/* To avoid the troubles of installing a separate file in the same
|
directory as the DLL and of retrieving the DLL's directory at
|
directory as the DLL and of retrieving the DLL's directory at
|
runtime, simply inline the aliases here. */
|
runtime, simply inline the aliases here. */
|
|
|
cp = "CP936" "\0" "GBK" "\0"
|
cp = "CP936" "\0" "GBK" "\0"
|
"CP1361" "\0" "JOHAB" "\0"
|
"CP1361" "\0" "JOHAB" "\0"
|
"CP20127" "\0" "ASCII" "\0"
|
"CP20127" "\0" "ASCII" "\0"
|
"CP20866" "\0" "KOI8-R" "\0"
|
"CP20866" "\0" "KOI8-R" "\0"
|
"CP21866" "\0" "KOI8-RU" "\0"
|
"CP21866" "\0" "KOI8-RU" "\0"
|
"CP28591" "\0" "ISO-8859-1" "\0"
|
"CP28591" "\0" "ISO-8859-1" "\0"
|
"CP28592" "\0" "ISO-8859-2" "\0"
|
"CP28592" "\0" "ISO-8859-2" "\0"
|
"CP28593" "\0" "ISO-8859-3" "\0"
|
"CP28593" "\0" "ISO-8859-3" "\0"
|
"CP28594" "\0" "ISO-8859-4" "\0"
|
"CP28594" "\0" "ISO-8859-4" "\0"
|
"CP28595" "\0" "ISO-8859-5" "\0"
|
"CP28595" "\0" "ISO-8859-5" "\0"
|
"CP28596" "\0" "ISO-8859-6" "\0"
|
"CP28596" "\0" "ISO-8859-6" "\0"
|
"CP28597" "\0" "ISO-8859-7" "\0"
|
"CP28597" "\0" "ISO-8859-7" "\0"
|
"CP28598" "\0" "ISO-8859-8" "\0"
|
"CP28598" "\0" "ISO-8859-8" "\0"
|
"CP28599" "\0" "ISO-8859-9" "\0"
|
"CP28599" "\0" "ISO-8859-9" "\0"
|
"CP28605" "\0" "ISO-8859-15" "\0";
|
"CP28605" "\0" "ISO-8859-15" "\0";
|
# endif
|
# endif
|
#endif
|
#endif
|
|
|
charset_aliases = cp;
|
charset_aliases = cp;
|
}
|
}
|
|
|
return cp;
|
return cp;
|
}
|
}
|
|
|
/* Determine the current locale's character encoding, and canonicalize it
|
/* Determine the current locale's character encoding, and canonicalize it
|
into one of the canonical names listed in config.charset.
|
into one of the canonical names listed in config.charset.
|
The result must not be freed; it is statically allocated.
|
The result must not be freed; it is statically allocated.
|
If the canonical name cannot be determined, the result is a non-canonical
|
If the canonical name cannot be determined, the result is a non-canonical
|
name. */
|
name. */
|
|
|
#ifdef STATIC
|
#ifdef STATIC
|
STATIC
|
STATIC
|
#endif
|
#endif
|
const char *
|
const char *
|
locale_charset ()
|
locale_charset ()
|
{
|
{
|
const char *codeset;
|
const char *codeset;
|
const char *aliases;
|
const char *aliases;
|
|
|
#if !(defined WIN32 || defined OS2)
|
#if !(defined WIN32 || defined OS2)
|
|
|
# if HAVE_LANGINFO_CODESET
|
# if HAVE_LANGINFO_CODESET
|
|
|
/* Most systems support nl_langinfo (CODESET) nowadays. */
|
/* Most systems support nl_langinfo (CODESET) nowadays. */
|
codeset = nl_langinfo (CODESET);
|
codeset = nl_langinfo (CODESET);
|
|
|
# else
|
# else
|
|
|
/* On old systems which lack it, use setlocale or getenv. */
|
/* On old systems which lack it, use setlocale or getenv. */
|
const char *locale = NULL;
|
const char *locale = NULL;
|
|
|
/* But most old systems don't have a complete set of locales. Some
|
/* But most old systems don't have a complete set of locales. Some
|
(like SunOS 4 or DJGPP) have only the C locale. Therefore we don't
|
(like SunOS 4 or DJGPP) have only the C locale. Therefore we don't
|
use setlocale here; it would return "C" when it doesn't support the
|
use setlocale here; it would return "C" when it doesn't support the
|
locale name the user has set. */
|
locale name the user has set. */
|
# if HAVE_SETLOCALE && 0
|
# if HAVE_SETLOCALE && 0
|
locale = setlocale (LC_CTYPE, NULL);
|
locale = setlocale (LC_CTYPE, NULL);
|
# endif
|
# endif
|
if (locale == NULL || locale[0] == '\0')
|
if (locale == NULL || locale[0] == '\0')
|
{
|
{
|
locale = getenv ("LC_ALL");
|
locale = getenv ("LC_ALL");
|
if (locale == NULL || locale[0] == '\0')
|
if (locale == NULL || locale[0] == '\0')
|
{
|
{
|
locale = getenv ("LC_CTYPE");
|
locale = getenv ("LC_CTYPE");
|
if (locale == NULL || locale[0] == '\0')
|
if (locale == NULL || locale[0] == '\0')
|
locale = getenv ("LANG");
|
locale = getenv ("LANG");
|
}
|
}
|
}
|
}
|
|
|
/* On some old systems, one used to set locale = "iso8859_1". On others,
|
/* On some old systems, one used to set locale = "iso8859_1". On others,
|
you set it to "language_COUNTRY.charset". In any case, we resolve it
|
you set it to "language_COUNTRY.charset". In any case, we resolve it
|
through the charset.alias file. */
|
through the charset.alias file. */
|
codeset = locale;
|
codeset = locale;
|
|
|
# endif
|
# endif
|
|
|
#elif defined WIN32
|
#elif defined WIN32
|
|
|
static char buf[2 + 10 + 1];
|
static char buf[2 + 10 + 1];
|
|
|
/* Woe32 has a function returning the locale's codepage as a number. */
|
/* Woe32 has a function returning the locale's codepage as a number. */
|
sprintf (buf, "CP%u", GetACP ());
|
sprintf (buf, "CP%u", GetACP ());
|
codeset = buf;
|
codeset = buf;
|
|
|
#elif defined OS2
|
#elif defined OS2
|
|
|
const char *locale;
|
const char *locale;
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static char buf[2 + 10 + 1];
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static char buf[2 + 10 + 1];
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ULONG cp[3];
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ULONG cp[3];
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ULONG cplen;
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ULONG cplen;
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|
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/* Allow user to override the codeset, as set in the operating system,
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/* Allow user to override the codeset, as set in the operating system,
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with standard language environment variables. */
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with standard language environment variables. */
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locale = getenv ("LC_ALL");
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locale = getenv ("LC_ALL");
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if (locale == NULL || locale[0] == '\0')
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if (locale == NULL || locale[0] == '\0')
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{
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{
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locale = getenv ("LC_CTYPE");
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locale = getenv ("LC_CTYPE");
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if (locale == NULL || locale[0] == '\0')
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if (locale == NULL || locale[0] == '\0')
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locale = getenv ("LANG");
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locale = getenv ("LANG");
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}
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}
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if (locale != NULL && locale[0] != '\0')
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if (locale != NULL && locale[0] != '\0')
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{
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{
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/* If the locale name contains an encoding after the dot, return it. */
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/* If the locale name contains an encoding after the dot, return it. */
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const char *dot = strchr (locale, '.');
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const char *dot = strchr (locale, '.');
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|
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if (dot != NULL)
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if (dot != NULL)
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{
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{
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const char *modifier;
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const char *modifier;
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|
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dot++;
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dot++;
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/* Look for the possible @... trailer and remove it, if any. */
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/* Look for the possible @... trailer and remove it, if any. */
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modifier = strchr (dot, '@');
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modifier = strchr (dot, '@');
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if (modifier == NULL)
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if (modifier == NULL)
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return dot;
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return dot;
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if (modifier - dot < sizeof (buf))
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if (modifier - dot < sizeof (buf))
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{
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{
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memcpy (buf, dot, modifier - dot);
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memcpy (buf, dot, modifier - dot);
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buf [modifier - dot] = '\0';
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buf [modifier - dot] = '\0';
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return buf;
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return buf;
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}
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}
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}
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}
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|
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/* Resolve through the charset.alias file. */
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/* Resolve through the charset.alias file. */
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codeset = locale;
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codeset = locale;
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}
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}
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else
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else
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{
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{
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/* OS/2 has a function returning the locale's codepage as a number. */
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/* OS/2 has a function returning the locale's codepage as a number. */
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if (DosQueryCp (sizeof (cp), cp, &cplen))
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if (DosQueryCp (sizeof (cp), cp, &cplen))
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codeset = "";
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codeset = "";
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else
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else
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{
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{
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sprintf (buf, "CP%u", cp[0]);
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sprintf (buf, "CP%u", cp[0]);
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codeset = buf;
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codeset = buf;
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}
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}
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}
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}
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|
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#endif
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#endif
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|
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if (codeset == NULL)
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if (codeset == NULL)
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/* The canonical name cannot be determined. */
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/* The canonical name cannot be determined. */
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codeset = "";
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codeset = "";
|
|
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/* Resolve alias. */
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/* Resolve alias. */
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for (aliases = get_charset_aliases ();
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for (aliases = get_charset_aliases ();
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*aliases != '\0';
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*aliases != '\0';
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aliases += strlen (aliases) + 1, aliases += strlen (aliases) + 1)
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aliases += strlen (aliases) + 1, aliases += strlen (aliases) + 1)
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if (strcmp (codeset, aliases) == 0
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if (strcmp (codeset, aliases) == 0
|
|| (aliases[0] == '*' && aliases[1] == '\0'))
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|| (aliases[0] == '*' && aliases[1] == '\0'))
|
{
|
{
|
codeset = aliases + strlen (aliases) + 1;
|
codeset = aliases + strlen (aliases) + 1;
|
break;
|
break;
|
}
|
}
|
|
|
/* Don't return an empty string. GNU libc and GNU libiconv interpret
|
/* Don't return an empty string. GNU libc and GNU libiconv interpret
|
the empty string as denoting "the locale's character encoding",
|
the empty string as denoting "the locale's character encoding",
|
thus GNU libiconv would call this function a second time. */
|
thus GNU libiconv would call this function a second time. */
|
if (codeset[0] == '\0')
|
if (codeset[0] == '\0')
|
codeset = "ASCII";
|
codeset = "ASCII";
|
|
|
return codeset;
|
return codeset;
|
}
|
}
|
|
|
