/* Determine a canonical name for the current locale's character encoding.
- Copyright (C) 2000-2002 Free Software Foundation, Inc.
+ Copyright (C) 2000-2006 Free Software Foundation, Inc.
- 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
- by the Free Software Foundation; either version 2, or (at your option)
+ 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
- Library General Public License for more details.
+ 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 Library 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. */
+ 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
/* Written by Bruno Haible <bruno@clisp.org>. */
# include <config.h>
#endif
+/* Specification. */
+#include "localcharset.h"
+
#if HAVE_STDDEF_H
# include <stddef.h>
#endif
# include <os2.h>
#endif
-#if defined _WIN32 || defined __WIN32__ || defined __EMX__ || defined __DJGPP__
- /* Win32, OS/2, DOS */
+#if ENABLE_RELOCATABLE
+# include "relocatable.h"
+#else
+# define relocate(pathname) (pathname)
+#endif
+
+#if defined _WIN32 || defined __WIN32__ || defined __CYGWIN__ || defined __EMX__ || defined __DJGPP__
+ /* Win32, Cygwin, OS/2, DOS */
# define ISSLASH(C) ((C) == '/' || (C) == '\\')
#endif
# define ISSLASH(C) ((C) == DIRECTORY_SEPARATOR)
#endif
-#ifdef HAVE_GETC_UNLOCKED
+#if HAVE_DECL_GETC_UNLOCKED
# undef getc
# define getc getc_unlocked
#endif
-#ifdef __cplusplus
-/* When compiling with "gcc -x c++", produce a function with C linkage. */
-extern "C" const char * locale_charset (void);
-#endif
-
/* The following static variable is declared 'volatile' to avoid a
possible multithread problem in the function get_charset_aliases. If we
are running in a threaded environment, and if two threads initialize
/* Return a pointer to the contents of the charset.alias file. */
static const char *
-get_charset_aliases ()
+get_charset_aliases (void)
{
const char *cp;
cp = charset_aliases;
if (cp == NULL)
{
-#if !defined WIN32
+#if !(defined VMS || defined WIN32)
FILE *fp;
- const char *dir = LIBDIR;
+ const char *dir;
const char *base = "charset.alias";
char *file_name;
+ /* Make it possible to override the charset.alias location. This is
+ necessary for running the testsuite before "make install". */
+ dir = getenv ("CHARSETALIASDIR");
+ if (dir == NULL || dir[0] == '\0')
+ dir = relocate (LIBDIR);
+
/* Concatenate dir and base into freshly allocated file_name. */
{
size_t dir_len = strlen (dir);
else
{
/* Parse the file's contents. */
- int c;
- char buf1[50+1];
- char buf2[50+1];
char *res_ptr = NULL;
size_t res_size = 0;
- size_t l1, l2;
for (;;)
{
+ int c;
+ char buf1[50+1];
+ char buf2[50+1];
+ size_t l1, l2;
+ char *old_res_ptr;
+
c = getc (fp);
if (c == EOF)
break;
break;
l1 = strlen (buf1);
l2 = strlen (buf2);
+ old_res_ptr = res_ptr;
if (res_size == 0)
{
res_size = l1 + 1 + l2 + 1;
{
/* Out of memory. */
res_size = 0;
+ if (old_res_ptr != NULL)
+ free (old_res_ptr);
break;
}
strcpy (res_ptr + res_size - (l2 + 1) - (l1 + 1), buf1);
#else
+# if defined VMS
+ /* To avoid the troubles of an extra file charset.alias_vms in the
+ sources of many GNU packages, simply inline the aliases here. */
+ /* The list of encodings is taken from the OpenVMS 7.3-1 documentation
+ "Compaq C Run-Time Library Reference Manual for OpenVMS systems"
+ section 10.7 "Handling Different Character Sets". */
+ cp = "ISO8859-1" "\0" "ISO-8859-1" "\0"
+ "ISO8859-2" "\0" "ISO-8859-2" "\0"
+ "ISO8859-5" "\0" "ISO-8859-5" "\0"
+ "ISO8859-7" "\0" "ISO-8859-7" "\0"
+ "ISO8859-8" "\0" "ISO-8859-8" "\0"
+ "ISO8859-9" "\0" "ISO-8859-9" "\0"
+ /* Japanese */
+ "eucJP" "\0" "EUC-JP" "\0"
+ "SJIS" "\0" "SHIFT_JIS" "\0"
+ "DECKANJI" "\0" "DEC-KANJI" "\0"
+ "SDECKANJI" "\0" "EUC-JP" "\0"
+ /* Chinese */
+ "eucTW" "\0" "EUC-TW" "\0"
+ "DECHANYU" "\0" "DEC-HANYU" "\0"
+ "DECHANZI" "\0" "GB2312" "\0"
+ /* Korean */
+ "DECKOREAN" "\0" "EUC-KR" "\0";
+# endif
+
+# if defined WIN32
/* To avoid the troubles of installing a separate file in the same
directory as the DLL and of retrieving the DLL's directory at
runtime, simply inline the aliases here. */
-# if defined WIN32
cp = "CP936" "\0" "GBK" "\0"
"CP1361" "\0" "JOHAB" "\0"
"CP20127" "\0" "ASCII" "\0"
"CP20866" "\0" "KOI8-R" "\0"
+ "CP20936" "\0" "GB2312" "\0"
"CP21866" "\0" "KOI8-RU" "\0"
"CP28591" "\0" "ISO-8859-1" "\0"
"CP28592" "\0" "ISO-8859-2" "\0"
"CP28597" "\0" "ISO-8859-7" "\0"
"CP28598" "\0" "ISO-8859-8" "\0"
"CP28599" "\0" "ISO-8859-9" "\0"
- "CP28605" "\0" "ISO-8859-15" "\0";
+ "CP28605" "\0" "ISO-8859-15" "\0"
+ "CP38598" "\0" "ISO-8859-8" "\0"
+ "CP51932" "\0" "EUC-JP" "\0"
+ "CP51936" "\0" "GB2312" "\0"
+ "CP51949" "\0" "EUC-KR" "\0"
+ "CP51950" "\0" "EUC-TW" "\0"
+ "CP54936" "\0" "GB18030" "\0"
+ "CP65001" "\0" "UTF-8" "\0";
# endif
#endif
STATIC
#endif
const char *
-locale_charset ()
+locale_charset (void)
{
const char *codeset;
const char *aliases;
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