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/* Determine a canonical name for the current locale's character encoding.
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Copyright (C) 2000-2006 Free Software Foundation, Inc.
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Copyright (C) 2000-2004 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify it
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under the terms of the GNU Library General Public License as published
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#if !defined WIN32_NATIVE
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# if HAVE_LANGINFO_CODESET
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# include <langinfo.h>
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# if 0 /* see comment below */
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# include <locale.h>
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# define WIN32_LEAN_AND_MEAN
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#elif defined WIN32_NATIVE
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# define WIN32_LEAN_AND_MEAN
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# include <windows.h>
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# define relocate(pathname) (pathname)
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# include "configmake.h"
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#if defined _WIN32 || defined __WIN32__ || defined __CYGWIN__ || defined __EMX__ || defined __DJGPP__
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/* Win32, Cygwin, OS/2, DOS */
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# define ISSLASH(C) ((C) == '/' || (C) == '\\')
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/* Return a pointer to the contents of the charset.alias file. */
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static const char *
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get_charset_aliases (void)
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get_charset_aliases ()
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cp = charset_aliases;
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#if !(defined VMS || defined WIN32_NATIVE || defined __CYGWIN__)
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#if !(defined VMS || defined WIN32)
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const char *base = "charset.alias";
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"DECKOREAN" "\0" "EUC-KR" "\0";
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# if defined WIN32_NATIVE || defined __CYGWIN__
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/* To avoid the troubles of installing a separate file in the same
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directory as the DLL and of retrieving the DLL's directory at
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runtime, simply inline the aliases here. */
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"CP1361" "\0" "JOHAB" "\0"
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"CP20127" "\0" "ASCII" "\0"
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"CP20866" "\0" "KOI8-R" "\0"
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"CP20936" "\0" "GB2312" "\0"
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"CP21866" "\0" "KOI8-RU" "\0"
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"CP28591" "\0" "ISO-8859-1" "\0"
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"CP28592" "\0" "ISO-8859-2" "\0"
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"CP28597" "\0" "ISO-8859-7" "\0"
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"CP28598" "\0" "ISO-8859-8" "\0"
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"CP28599" "\0" "ISO-8859-9" "\0"
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"CP28605" "\0" "ISO-8859-15" "\0"
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"CP38598" "\0" "ISO-8859-8" "\0"
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"CP51932" "\0" "EUC-JP" "\0"
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"CP51936" "\0" "GB2312" "\0"
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"CP51949" "\0" "EUC-KR" "\0"
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"CP51950" "\0" "EUC-TW" "\0"
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"CP54936" "\0" "GB18030" "\0"
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"CP65001" "\0" "UTF-8" "\0";
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"CP28605" "\0" "ISO-8859-15" "\0";
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locale_charset (void)
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const char *codeset;
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const char *aliases;
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#if !(defined WIN32_NATIVE || defined OS2)
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#if !(defined WIN32 || defined OS2)
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# if HAVE_LANGINFO_CODESET
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/* Most systems support nl_langinfo (CODESET) nowadays. */
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codeset = nl_langinfo (CODESET);
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/* Cygwin 2006 does not have locales. nl_langinfo (CODESET) always
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returns "US-ASCII". As long as this is not fixed, return the suffix
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of the locale name from the environment variables (if present) or
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the codepage as a number. */
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if (codeset != NULL && strcmp (codeset, "US-ASCII") == 0)
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static char buf[2 + 10 + 1];
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locale = getenv ("LC_ALL");
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if (locale == NULL || locale[0] == '\0')
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locale = getenv ("LC_CTYPE");
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if (locale == NULL || locale[0] == '\0')
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locale = getenv ("LANG");
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if (locale != NULL && locale[0] != '\0')
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/* If the locale name contains an encoding after the dot, return
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const char *dot = strchr (locale, '.');
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const char *modifier;
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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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if (modifier == NULL)
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if (modifier - dot < sizeof (buf))
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memcpy (buf, dot, modifier - dot);
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buf [modifier - dot] = '\0';
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/* Woe32 has a function returning the locale's codepage as a number. */
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sprintf (buf, "CP%u", GetACP ());
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/* On old systems which lack it, use setlocale or getenv. */
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(like SunOS 4 or DJGPP) have only the C locale. Therefore we don't
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use setlocale here; it would return "C" when it doesn't support the
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locale name the user has set. */
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# if HAVE_SETLOCALE && 0
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locale = setlocale (LC_CTYPE, NULL);
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if (locale == NULL || locale[0] == '\0')
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removed
intl/localcharset.c
