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-rw-r--r--lib/localcharset.c1335
1 files changed, 933 insertions, 402 deletions
diff --git a/lib/localcharset.c b/lib/localcharset.c
index 14b9cba..17a4a1e 100644
--- a/lib/localcharset.c
+++ b/lib/localcharset.c
@@ -1,28 +1,19 @@
/* Determine a canonical name for the current locale's character encoding.
- Copyright (C) 2000-2006, 2008-2018 Free Software Foundation, Inc.
+ Copyright (C) 2000-2006, 2008-2022 Free Software Foundation, Inc.
- This program is free software: you can redistribute it and/or
- modify it under the terms of either:
+ This file 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 Lesser General Public License as published by the Free
- Software Foundation; either version 3 of the License, or (at your
- option) any later version.
-
- or
-
- * the GNU General Public License as published by the Free
- Software Foundation; either version 2 of the License, or (at your
- option) any later version.
-
- or both in parallel, as here.
- This program is distributed in the hope that it will be useful,
+ This file 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 General Public License for more details.
+ GNU Lesser General Public License for more details.
- You should have received a copy of the GNU General Public License along
- with this program; if not, see <https://www.gnu.org/licenses/>. */
+ 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/>. */
/* Written by Bruno Haible <bruno@clisp.org>. */
@@ -31,7 +22,6 @@
/* Specification. */
#include "localcharset.h"
-#include <fcntl.h>
#include <stddef.h>
#include <stdio.h>
#include <string.h>
@@ -54,11 +44,10 @@
#endif
#if !defined WINDOWS_NATIVE
-# include <unistd.h>
# if HAVE_LANGINFO_CODESET
# include <langinfo.h>
# else
-# if 0 /* see comment below */
+# if 0 /* see comment regarding use of setlocale(), below */
# include <locale.h>
# endif
# endif
@@ -69,6 +58,9 @@
#elif defined WINDOWS_NATIVE
# define WIN32_LEAN_AND_MEAN
# include <windows.h>
+ /* For the use of setlocale() below, the Gnulib override in setlocale.c is
+ not needed; see the platform lists in setlocale_null.m4. */
+# undef setlocale
#endif
#if defined OS2
# define INCL_DOS
@@ -80,324 +72,755 @@
# include <xlocale.h>
#endif
-#if ENABLE_RELOCATABLE
-# include "relocatable.h"
-#else
-# define relocate(pathname) (pathname)
-# define relocate2(pathname,allocatedp) (*(allocatedp) = NULL, (pathname))
-#endif
-/* Get LIBDIR. */
-#ifndef LIBDIR
-# include "configmake.h"
-#endif
+#if HAVE_LANGINFO_CODESET || defined WINDOWS_NATIVE || defined OS2
-/* Define O_NOFOLLOW to 0 on platforms where it does not exist. */
-#ifndef O_NOFOLLOW
-# define O_NOFOLLOW 0
-#endif
+/* On these platforms, we use a mapping from non-canonical encoding name
+ to GNU canonical encoding name. */
-#if defined _WIN32 || defined __CYGWIN__ || defined __EMX__ || defined __DJGPP__
- /* Native Windows, Cygwin, OS/2, DOS */
-# define ISSLASH(C) ((C) == '/' || (C) == '\\')
-#endif
+/* With glibc-2.1 or newer, we don't need any canonicalization,
+ because glibc has iconv and both glibc and libiconv support all
+ GNU canonical names directly. */
+# if !((defined __GNU_LIBRARY__ && __GLIBC__ >= 2) || defined __UCLIBC__)
-#ifndef DIRECTORY_SEPARATOR
-# define DIRECTORY_SEPARATOR '/'
-#endif
-
-#ifndef ISSLASH
-# define ISSLASH(C) ((C) == DIRECTORY_SEPARATOR)
-#endif
-
-#if HAVE_DECL_GETC_UNLOCKED
-# undef getc
-# define getc getc_unlocked
-#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
- 'charset_aliases' simultaneously, both will produce the same value,
- 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. */
-#if __STDC__ != 1
-# define volatile /* empty */
-#endif
-/* Pointer to the contents of the charset.alias file, if it has already been
- read, else NULL. Its format is:
- ALIAS_1 '\0' CANONICAL_1 '\0' ... ALIAS_n '\0' CANONICAL_n '\0' '\0' */
-static const char * volatile charset_aliases;
-
-/* Return a pointer to the contents of the charset.alias file. */
-static const char *
-get_charset_aliases (void)
+struct table_entry
{
- const char *cp;
-
- cp = charset_aliases;
- if (cp == NULL)
- {
-#if !(defined DARWIN7 || defined VMS || defined WINDOWS_NATIVE || defined __CYGWIN__ || defined OS2)
- char *malloc_dir = NULL;
- 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 = relocate2 (LIBDIR, &malloc_dir);
-
- /* Concatenate dir and base into freshly allocated file_name. */
- {
- size_t dir_len = strlen (dir);
- size_t base_len = strlen (base);
- int add_slash = (dir_len > 0 && !ISSLASH (dir[dir_len - 1]));
- file_name = (char *) malloc (dir_len + add_slash + base_len + 1);
- if (file_name != NULL)
- {
- memcpy (file_name, dir, dir_len);
- if (add_slash)
- file_name[dir_len] = DIRECTORY_SEPARATOR;
- memcpy (file_name + dir_len + add_slash, base, base_len + 1);
- }
- }
-
- free (malloc_dir);
-
- if (file_name == NULL)
- /* Out of memory. Treat the file as empty. */
- cp = "";
- else
- {
- int fd;
-
- /* Open the file. Reject symbolic links on platforms that support
- O_NOFOLLOW. This is a security feature. Without it, an attacker
- could retrieve parts of the contents (namely, the tail of the
- first line that starts with "* ") of an arbitrary file by placing
- a symbolic link to that file under the name "charset.alias" in
- some writable directory and defining the environment variable
- CHARSETALIASDIR to point to that directory. */
- fd = open (file_name,
- O_RDONLY | (HAVE_WORKING_O_NOFOLLOW ? O_NOFOLLOW : 0));
- if (fd < 0)
- /* File not found. Treat it as empty. */
- cp = "";
- else
- {
- FILE *fp;
-
- fp = fdopen (fd, "r");
- if (fp == NULL)
- {
- /* Out of memory. Treat the file as empty. */
- close (fd);
- cp = "";
- }
- else
- {
- /* Parse the file's contents. */
- char *res_ptr = NULL;
- size_t res_size = 0;
-
- 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;
- if (c == '\n' || c == ' ' || c == '\t')
- continue;
- if (c == '#')
- {
- /* Skip comment, to end of line. */
- do
- c = getc (fp);
- while (!(c == EOF || c == '\n'));
- if (c == EOF)
- break;
- continue;
- }
- ungetc (c, fp);
- if (fscanf (fp, "%50s %50s", buf1, buf2) < 2)
- break;
- l1 = strlen (buf1);
- l2 = strlen (buf2);
- old_res_ptr = res_ptr;
- if (res_size == 0)
- {
- res_size = l1 + 1 + l2 + 1;
- res_ptr = (char *) malloc (res_size + 1);
- }
- else
- {
- res_size += l1 + 1 + l2 + 1;
- res_ptr = (char *) realloc (res_ptr, res_size + 1);
- }
- if (res_ptr == NULL)
- {
- /* Out of memory. */
- res_size = 0;
- free (old_res_ptr);
- break;
- }
- strcpy (res_ptr + res_size - (l2 + 1) - (l1 + 1), buf1);
- strcpy (res_ptr + res_size - (l2 + 1), buf2);
- }
- fclose (fp);
- if (res_size == 0)
- cp = "";
- else
- {
- *(res_ptr + res_size) = '\0';
- cp = res_ptr;
- }
- }
- }
+ const char alias[11+1];
+ const char canonical[11+1];
+};
+
+/* Table of platform-dependent mappings, sorted in ascending order. */
+static const struct table_entry alias_table[] =
+ {
+# if defined __FreeBSD__ /* FreeBSD */
+ /*{ "ARMSCII-8", "ARMSCII-8" },*/
+ { "Big5", "BIG5" },
+ { "C", "ASCII" },
+ /*{ "CP1131", "CP1131" },*/
+ /*{ "CP1251", "CP1251" },*/
+ /*{ "CP866", "CP866" },*/
+ /*{ "GB18030", "GB18030" },*/
+ /*{ "GB2312", "GB2312" },*/
+ /*{ "GBK", "GBK" },*/
+ /*{ "ISCII-DEV", "?" },*/
+ { "ISO8859-1", "ISO-8859-1" },
+ { "ISO8859-13", "ISO-8859-13" },
+ { "ISO8859-15", "ISO-8859-15" },
+ { "ISO8859-2", "ISO-8859-2" },
+ { "ISO8859-5", "ISO-8859-5" },
+ { "ISO8859-7", "ISO-8859-7" },
+ { "ISO8859-9", "ISO-8859-9" },
+ /*{ "KOI8-R", "KOI8-R" },*/
+ /*{ "KOI8-U", "KOI8-U" },*/
+ { "SJIS", "SHIFT_JIS" },
+ { "US-ASCII", "ASCII" },
+ { "eucCN", "GB2312" },
+ { "eucJP", "EUC-JP" },
+ { "eucKR", "EUC-KR" }
+# define alias_table_defined
+# endif
+# if defined __NetBSD__ /* NetBSD */
+ { "646", "ASCII" },
+ /*{ "ARMSCII-8", "ARMSCII-8" },*/
+ /*{ "BIG5", "BIG5" },*/
+ { "Big5-HKSCS", "BIG5-HKSCS" },
+ /*{ "CP1251", "CP1251" },*/
+ /*{ "CP866", "CP866" },*/
+ /*{ "GB18030", "GB18030" },*/
+ /*{ "GB2312", "GB2312" },*/
+ { "ISO8859-1", "ISO-8859-1" },
+ { "ISO8859-13", "ISO-8859-13" },
+ { "ISO8859-15", "ISO-8859-15" },
+ { "ISO8859-2", "ISO-8859-2" },
+ { "ISO8859-4", "ISO-8859-4" },
+ { "ISO8859-5", "ISO-8859-5" },
+ { "ISO8859-7", "ISO-8859-7" },
+ /*{ "KOI8-R", "KOI8-R" },*/
+ /*{ "KOI8-U", "KOI8-U" },*/
+ /*{ "PT154", "PT154" },*/
+ { "SJIS", "SHIFT_JIS" },
+ { "eucCN", "GB2312" },
+ { "eucJP", "EUC-JP" },
+ { "eucKR", "EUC-KR" },
+ { "eucTW", "EUC-TW" }
+# define alias_table_defined
+# endif
+# if defined __OpenBSD__ /* OpenBSD */
+ { "646", "ASCII" },
+ { "ISO8859-1", "ISO-8859-1" },
+ { "ISO8859-13", "ISO-8859-13" },
+ { "ISO8859-15", "ISO-8859-15" },
+ { "ISO8859-2", "ISO-8859-2" },
+ { "ISO8859-4", "ISO-8859-4" },
+ { "ISO8859-5", "ISO-8859-5" },
+ { "ISO8859-7", "ISO-8859-7" },
+ { "US-ASCII", "ASCII" }
+# define alias_table_defined
+# endif
+# if defined __APPLE__ && defined __MACH__ /* Mac OS X */
+ /* Darwin 7.5 has nl_langinfo(CODESET), but sometimes its value is
+ useless:
+ - It returns the empty string when LANG is set to a locale of the
+ form ll_CC, although ll_CC/LC_CTYPE is a symlink to an UTF-8
+ LC_CTYPE file.
+ - The environment variables LANG, LC_CTYPE, LC_ALL are not set by
+ the system; nl_langinfo(CODESET) returns "US-ASCII" in this case.
+ - The documentation says:
+ "... all code that calls BSD system routines should ensure
+ that the const *char parameters of these routines are in UTF-8
+ encoding. All BSD system functions expect their string
+ parameters to be in UTF-8 encoding and nothing else."
+ It also says
+ "An additional caveat is that string parameters for files,
+ paths, and other file-system entities must be in canonical
+ UTF-8. In a canonical UTF-8 Unicode string, all decomposable
+ characters are decomposed ..."
+ but this is not true: You can pass non-decomposed UTF-8 strings
+ to file system functions, and it is the OS which will convert
+ them to decomposed UTF-8 before accessing the file system.
+ - The Apple Terminal application displays UTF-8 by default.
+ - However, other applications are free to use different encodings:
+ - xterm uses ISO-8859-1 by default.
+ - TextEdit uses MacRoman by default.
+ We prefer UTF-8 over decomposed UTF-8-MAC because one should
+ minimize the use of decomposed Unicode. Unfortunately, through the
+ Darwin file system, decomposed UTF-8 strings are leaked into user
+ space nevertheless.
+ Then there are also the locales with encodings other than US-ASCII
+ and UTF-8. These locales can be occasionally useful to users (e.g.
+ when grepping through ISO-8859-1 encoded text files), when all their
+ file names are in US-ASCII.
+ */
+ { "ARMSCII-8", "ARMSCII-8" },
+ { "Big5", "BIG5" },
+ { "Big5HKSCS", "BIG5-HKSCS" },
+ { "CP1131", "CP1131" },
+ { "CP1251", "CP1251" },
+ { "CP866", "CP866" },
+ { "CP949", "CP949" },
+ { "GB18030", "GB18030" },
+ { "GB2312", "GB2312" },
+ { "GBK", "GBK" },
+ /*{ "ISCII-DEV", "?" },*/
+ { "ISO8859-1", "ISO-8859-1" },
+ { "ISO8859-13", "ISO-8859-13" },
+ { "ISO8859-15", "ISO-8859-15" },
+ { "ISO8859-2", "ISO-8859-2" },
+ { "ISO8859-4", "ISO-8859-4" },
+ { "ISO8859-5", "ISO-8859-5" },
+ { "ISO8859-7", "ISO-8859-7" },
+ { "ISO8859-9", "ISO-8859-9" },
+ { "KOI8-R", "KOI8-R" },
+ { "KOI8-U", "KOI8-U" },
+ { "PT154", "PT154" },
+ { "SJIS", "SHIFT_JIS" },
+ { "eucCN", "GB2312" },
+ { "eucJP", "EUC-JP" },
+ { "eucKR", "EUC-KR" }
+# define alias_table_defined
+# endif
+# if defined _AIX /* AIX */
+ /*{ "GBK", "GBK" },*/
+ { "IBM-1046", "CP1046" },
+ { "IBM-1124", "CP1124" },
+ { "IBM-1129", "CP1129" },
+ { "IBM-1252", "CP1252" },
+ { "IBM-850", "CP850" },
+ { "IBM-856", "CP856" },
+ { "IBM-921", "ISO-8859-13" },
+ { "IBM-922", "CP922" },
+ { "IBM-932", "CP932" },
+ { "IBM-943", "CP943" },
+ { "IBM-eucCN", "GB2312" },
+ { "IBM-eucJP", "EUC-JP" },
+ { "IBM-eucKR", "EUC-KR" },
+ { "IBM-eucTW", "EUC-TW" },
+ { "ISO8859-1", "ISO-8859-1" },
+ { "ISO8859-15", "ISO-8859-15" },
+ { "ISO8859-2", "ISO-8859-2" },
+ { "ISO8859-5", "ISO-8859-5" },
+ { "ISO8859-6", "ISO-8859-6" },
+ { "ISO8859-7", "ISO-8859-7" },
+ { "ISO8859-8", "ISO-8859-8" },
+ { "ISO8859-9", "ISO-8859-9" },
+ { "TIS-620", "TIS-620" },
+ /*{ "UTF-8", "UTF-8" },*/
+ { "big5", "BIG5" }
+# define alias_table_defined
+# endif
+# if defined __hpux /* HP-UX */
+ { "SJIS", "SHIFT_JIS" },
+ { "arabic8", "HP-ARABIC8" },
+ { "big5", "BIG5" },
+ { "cp1251", "CP1251" },
+ { "eucJP", "EUC-JP" },
+ { "eucKR", "EUC-KR" },
+ { "eucTW", "EUC-TW" },
+ { "gb18030", "GB18030" },
+ { "greek8", "HP-GREEK8" },
+ { "hebrew8", "HP-HEBREW8" },
+ { "hkbig5", "BIG5-HKSCS" },
+ { "hp15CN", "GB2312" },
+ { "iso88591", "ISO-8859-1" },
+ { "iso885913", "ISO-8859-13" },
+ { "iso885915", "ISO-8859-15" },
+ { "iso88592", "ISO-8859-2" },
+ { "iso88594", "ISO-8859-4" },
+ { "iso88595", "ISO-8859-5" },
+ { "iso88596", "ISO-8859-6" },
+ { "iso88597", "ISO-8859-7" },
+ { "iso88598", "ISO-8859-8" },
+ { "iso88599", "ISO-8859-9" },
+ { "kana8", "HP-KANA8" },
+ { "koi8r", "KOI8-R" },
+ { "roman8", "HP-ROMAN8" },
+ { "tis620", "TIS-620" },
+ { "turkish8", "HP-TURKISH8" },
+ { "utf8", "UTF-8" }
+# define alias_table_defined
+# endif
+# if defined __sgi /* IRIX */
+ { "ISO8859-1", "ISO-8859-1" },
+ { "ISO8859-15", "ISO-8859-15" },
+ { "ISO8859-2", "ISO-8859-2" },
+ { "ISO8859-5", "ISO-8859-5" },
+ { "ISO8859-7", "ISO-8859-7" },
+ { "ISO8859-9", "ISO-8859-9" },
+ { "eucCN", "GB2312" },
+ { "eucJP", "EUC-JP" },
+ { "eucKR", "EUC-KR" },
+ { "eucTW", "EUC-TW" }
+# define alias_table_defined
+# endif
+# if defined __osf__ /* OSF/1 */
+ /*{ "GBK", "GBK" },*/
+ { "ISO8859-1", "ISO-8859-1" },
+ { "ISO8859-15", "ISO-8859-15" },
+ { "ISO8859-2", "ISO-8859-2" },
+ { "ISO8859-4", "ISO-8859-4" },
+ { "ISO8859-5", "ISO-8859-5" },
+ { "ISO8859-7", "ISO-8859-7" },
+ { "ISO8859-8", "ISO-8859-8" },
+ { "ISO8859-9", "ISO-8859-9" },
+ { "KSC5601", "CP949" },
+ { "SJIS", "SHIFT_JIS" },
+ { "TACTIS", "TIS-620" },
+ /*{ "UTF-8", "UTF-8" },*/
+ { "big5", "BIG5" },
+ { "cp850", "CP850" },
+ { "dechanyu", "DEC-HANYU" },
+ { "dechanzi", "GB2312" },
+ { "deckanji", "DEC-KANJI" },
+ { "deckorean", "EUC-KR" },
+ { "eucJP", "EUC-JP" },
+ { "eucKR", "EUC-KR" },
+ { "eucTW", "EUC-TW" },
+ { "sdeckanji", "EUC-JP" }
+# define alias_table_defined
+# endif
+# if defined __sun /* Solaris */
+ { "5601", "EUC-KR" },
+ { "646", "ASCII" },
+ /*{ "BIG5", "BIG5" },*/
+ { "Big5-HKSCS", "BIG5-HKSCS" },
+ { "GB18030", "GB18030" },
+ /*{ "GBK", "GBK" },*/
+ { "ISO8859-1", "ISO-8859-1" },
+ { "ISO8859-11", "TIS-620" },
+ { "ISO8859-13", "ISO-8859-13" },
+ { "ISO8859-15", "ISO-8859-15" },
+ { "ISO8859-2", "ISO-8859-2" },
+ { "ISO8859-3", "ISO-8859-3" },
+ { "ISO8859-4", "ISO-8859-4" },
+ { "ISO8859-5", "ISO-8859-5" },
+ { "ISO8859-6", "ISO-8859-6" },
+ { "ISO8859-7", "ISO-8859-7" },
+ { "ISO8859-8", "ISO-8859-8" },
+ { "ISO8859-9", "ISO-8859-9" },
+ { "PCK", "SHIFT_JIS" },
+ { "TIS620.2533", "TIS-620" },
+ /*{ "UTF-8", "UTF-8" },*/
+ { "ansi-1251", "CP1251" },
+ { "cns11643", "EUC-TW" },
+ { "eucJP", "EUC-JP" },
+ { "gb2312", "GB2312" },
+ { "koi8-r", "KOI8-R" }
+# define alias_table_defined
+# endif
+# if defined __minix /* Minix */
+ { "646", "ASCII" }
+# define alias_table_defined
+# endif
+# if defined WINDOWS_NATIVE || defined __CYGWIN__ /* Windows */
+ { "CP1361", "JOHAB" },
+ { "CP20127", "ASCII" },
+ { "CP20866", "KOI8-R" },
+ { "CP20936", "GB2312" },
+ { "CP21866", "KOI8-RU" },
+ { "CP28591", "ISO-8859-1" },
+ { "CP28592", "ISO-8859-2" },
+ { "CP28593", "ISO-8859-3" },
+ { "CP28594", "ISO-8859-4" },
+ { "CP28595", "ISO-8859-5" },
+ { "CP28596", "ISO-8859-6" },
+ { "CP28597", "ISO-8859-7" },
+ { "CP28598", "ISO-8859-8" },
+ { "CP28599", "ISO-8859-9" },
+ { "CP28605", "ISO-8859-15" },
+ { "CP38598", "ISO-8859-8" },
+ { "CP51932", "EUC-JP" },
+ { "CP51936", "GB2312" },
+ { "CP51949", "EUC-KR" },
+ { "CP51950", "EUC-TW" },
+ { "CP54936", "GB18030" },
+ { "CP65001", "UTF-8" },
+ { "CP936", "GBK" }
+# define alias_table_defined
+# endif
+# if defined OS2 /* OS/2 */
+ /* The list of encodings is taken from "List of OS/2 Codepages"
+ by Alex Taylor:
+ <http://altsan.org/os2/toolkits/uls/index.html#codepages>.
+ See also "__convcp() of kLIBC":
+ <https://github.com/bitwiseworks/libc/blob/master/src/emx/src/lib/locale/__convcp.c>. */
+ { "CP1004", "CP1252" },
+ /*{ "CP1041", "CP943" },*/
+ /*{ "CP1088", "CP949" },*/
+ { "CP1089", "ISO-8859-6" },
+ /*{ "CP1114", "CP950" },*/
+ /*{ "CP1115", "GB2312" },*/
+ { "CP1208", "UTF-8" },
+ /*{ "CP1380", "GB2312" },*/
+ { "CP1381", "GB2312" },
+ { "CP1383", "GB2312" },
+ { "CP1386", "GBK" },
+ /*{ "CP301", "CP943" },*/
+ { "CP3372", "EUC-JP" },
+ { "CP4946", "CP850" },
+ /*{ "CP5048", "JIS_X0208-1990" },*/
+ /*{ "CP5049", "JIS_X0212-1990" },*/
+ /*{ "CP5067", "KS_C_5601-1987" },*/
+ { "CP813", "ISO-8859-7" },
+ { "CP819", "ISO-8859-1" },
+ { "CP878", "KOI8-R" },
+ /*{ "CP897", "CP943" },*/
+ { "CP912", "ISO-8859-2" },
+ { "CP913", "ISO-8859-3" },
+ { "CP914", "ISO-8859-4" },
+ { "CP915", "ISO-8859-5" },
+ { "CP916", "ISO-8859-8" },
+ { "CP920", "ISO-8859-9" },
+ { "CP921", "ISO-8859-13" },
+ { "CP923", "ISO-8859-15" },
+ /*{ "CP941", "CP943" },*/
+ /*{ "CP947", "CP950" },*/
+ /*{ "CP951", "CP949" },*/
+ /*{ "CP952", "JIS_X0208-1990" },*/
+ /*{ "CP953", "JIS_X0212-1990" },*/
+ { "CP954", "EUC-JP" },
+ { "CP964", "EUC-TW" },
+ { "CP970", "EUC-KR" },
+ /*{ "CP971", "KS_C_5601-1987" },*/
+ { "IBM-1004", "CP1252" },
+ /*{ "IBM-1006", "?" },*/
+ /*{ "IBM-1008", "?" },*/
+ /*{ "IBM-1041", "CP943" },*/
+ /*{ "IBM-1051", "?" },*/
+ /*{ "IBM-1088", "CP949" },*/
+ { "IBM-1089", "ISO-8859-6" },
+ /*{ "IBM-1098", "?" },*/
+ /*{ "IBM-1114", "CP950" },*/
+ /*{ "IBM-1115", "GB2312" },*/
+ /*{ "IBM-1116", "?" },*/
+ /*{ "IBM-1117", "?" },*/
+ /*{ "IBM-1118", "?" },*/
+ /*{ "IBM-1119", "?" },*/
+ { "IBM-1124", "CP1124" },
+ { "IBM-1125", "CP1125" },
+ { "IBM-1131", "CP1131" },
+ { "IBM-1208", "UTF-8" },
+ { "IBM-1250", "CP1250" },
+ { "IBM-1251", "CP1251" },
+ { "IBM-1252", "CP1252" },
+ { "IBM-1253", "CP1253" },
+ { "IBM-1254", "CP1254" },
+ { "IBM-1255", "CP1255" },
+ { "IBM-1256", "CP1256" },
+ { "IBM-1257", "CP1257" },
+ /*{ "IBM-1275", "?" },*/
+ /*{ "IBM-1276", "?" },*/
+ /*{ "IBM-1277", "?" },*/
+ /*{ "IBM-1280", "?" },*/
+ /*{ "IBM-1281", "?" },*/
+ /*{ "IBM-1282", "?" },*/
+ /*{ "IBM-1283", "?" },*/
+ /*{ "IBM-1380", "GB2312" },*/
+ { "IBM-1381", "GB2312" },
+ { "IBM-1383", "GB2312" },
+ { "IBM-1386", "GBK" },
+ /*{ "IBM-301", "CP943" },*/
+ { "IBM-3372", "EUC-JP" },
+ { "IBM-367", "ASCII" },
+ { "IBM-437", "CP437" },
+ { "IBM-4946", "CP850" },
+ /*{ "IBM-5048", "JIS_X0208-1990" },*/
+ /*{ "IBM-5049", "JIS_X0212-1990" },*/
+ /*{ "IBM-5067", "KS_C_5601-1987" },*/
+ { "IBM-813", "ISO-8859-7" },
+ { "IBM-819", "ISO-8859-1" },
+ { "IBM-850", "CP850" },
+ /*{ "IBM-851", "?" },*/
+ { "IBM-852", "CP852" },
+ { "IBM-855", "CP855" },
+ { "IBM-856", "CP856" },
+ { "IBM-857", "CP857" },
+ /*{ "IBM-859", "?" },*/
+ { "IBM-860", "CP860" },
+ { "IBM-861", "CP861" },
+ { "IBM-862", "CP862" },
+ { "IBM-863", "CP863" },
+ { "IBM-864", "CP864" },
+ { "IBM-865", "CP865" },
+ { "IBM-866", "CP866" },
+ /*{ "IBM-868", "?" },*/
+ { "IBM-869", "CP869" },
+ { "IBM-874", "CP874" },
+ { "IBM-878", "KOI8-R" },
+ /*{ "IBM-895", "?" },*/
+ /*{ "IBM-897", "CP943" },*/
+ /*{ "IBM-907", "?" },*/
+ /*{ "IBM-909", "?" },*/
+ { "IBM-912", "ISO-8859-2" },
+ { "IBM-913", "ISO-8859-3" },
+ { "IBM-914", "ISO-8859-4" },
+ { "IBM-915", "ISO-8859-5" },
+ { "IBM-916", "ISO-8859-8" },
+ { "IBM-920", "ISO-8859-9" },
+ { "IBM-921", "ISO-8859-13" },
+ { "IBM-922", "CP922" },
+ { "IBM-923", "ISO-8859-15" },
+ { "IBM-932", "CP932" },
+ /*{ "IBM-941", "CP943" },*/
+ /*{ "IBM-942", "?" },*/
+ { "IBM-943", "CP943" },
+ /*{ "IBM-947", "CP950" },*/
+ { "IBM-949", "CP949" },
+ { "IBM-950", "CP950" },
+ /*{ "IBM-951", "CP949" },*/
+ /*{ "IBM-952", "JIS_X0208-1990" },*/
+ /*{ "IBM-953", "JIS_X0212-1990" },*/
+ { "IBM-954", "EUC-JP" },
+ /*{ "IBM-955", "?" },*/
+ { "IBM-964", "EUC-TW" },
+ { "IBM-970", "EUC-KR" },
+ /*{ "IBM-971", "KS_C_5601-1987" },*/
+ { "IBM-eucCN", "GB2312" },
+ { "IBM-eucJP", "EUC-JP" },
+ { "IBM-eucKR", "EUC-KR" },
+ { "IBM-eucTW", "EUC-TW" },
+ { "IBM33722", "EUC-JP" },
+ { "ISO8859-1", "ISO-8859-1" },
+ { "ISO8859-2", "ISO-8859-2" },
+ { "ISO8859-3", "ISO-8859-3" },
+ { "ISO8859-4", "ISO-8859-4" },
+ { "ISO8859-5", "ISO-8859-5" },
+ { "ISO8859-6", "ISO-8859-6" },
+ { "ISO8859-7", "ISO-8859-7" },
+ { "ISO8859-8", "ISO-8859-8" },
+ { "ISO8859-9", "ISO-8859-9" },
+ /*{ "JISX0201-1976", "JISX0201-1976" },*/
+ /*{ "JISX0208-1978", "?" },*/
+ /*{ "JISX0208-1983", "JIS_X0208-1983" },*/
+ /*{ "JISX0208-1990", "JIS_X0208-1990" },*/
+ /*{ "JISX0212-1990", "JIS_X0212-1990" },*/
+ /*{ "KSC5601-1987", "KS_C_5601-1987" },*/
+ { "SJIS-1", "CP943" },
+ { "SJIS-2", "CP943" },
+ { "eucJP", "EUC-JP" },
+ { "eucKR", "EUC-KR" },
+ { "eucTW-1993", "EUC-TW" }
+# define alias_table_defined
+# endif
+# if defined VMS /* OpenVMS */
+ /* 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". */
+ { "DECHANYU", "DEC-HANYU" },
+ { "DECHANZI", "GB2312" },
+ { "DECKANJI", "DEC-KANJI" },
+ { "DECKOREAN", "EUC-KR" },
+ { "ISO8859-1", "ISO-8859-1" },
+ { "ISO8859-2", "ISO-8859-2" },
+ { "ISO8859-5", "ISO-8859-5" },
+ { "ISO8859-7", "ISO-8859-7" },
+ { "ISO8859-8", "ISO-8859-8" },
+ { "ISO8859-9", "ISO-8859-9" },
+ { "SDECKANJI", "EUC-JP" },
+ { "SJIS", "SHIFT_JIS" },
+ { "eucJP", "EUC-JP" },
+ { "eucTW", "EUC-TW" }
+# define alias_table_defined
+# endif
+# ifndef alias_table_defined
+ /* Just a dummy entry, to avoid a C syntax error. */
+ { "", "" }
+# endif
+ };
- free (file_name);
- }
+# endif
#else
-# if defined DARWIN7
- /* To avoid the trouble of installing a file that is shared by many
- GNU packages -- many packaging systems have problems with this --,
- simply inline the aliases here.
- For speed, map the most frequent case first. */
- cp = "UTF-8" "\0" "UTF-8" "\0"
- "ISO8859-1" "\0" "ISO-8859-1" "\0"
- "ISO8859-2" "\0" "ISO-8859-2" "\0"
- "ISO8859-4" "\0" "ISO-8859-4" "\0"
- "ISO8859-5" "\0" "ISO-8859-5" "\0"
- "ISO8859-7" "\0" "ISO-8859-7" "\0"
- "ISO8859-9" "\0" "ISO-8859-9" "\0"
- "ISO8859-13" "\0" "ISO-8859-13" "\0"
- "ISO8859-15" "\0" "ISO-8859-15" "\0"
- "KOI8-R" "\0" "KOI8-R" "\0"
- "KOI8-U" "\0" "KOI8-U" "\0"
- "CP866" "\0" "CP866" "\0"
- "CP949" "\0" "CP949" "\0"
- "CP1131" "\0" "CP1131" "\0"
- "CP1251" "\0" "CP1251" "\0"
- "eucCN" "\0" "GB2312" "\0"
- "GB2312" "\0" "GB2312" "\0"
- "eucJP" "\0" "EUC-JP" "\0"
- "eucKR" "\0" "EUC-KR" "\0"
- "Big5" "\0" "BIG5" "\0"
- "Big5HKSCS" "\0" "BIG5-HKSCS" "\0"
- "GBK" "\0" "GBK" "\0"
- "GB18030" "\0" "GB18030" "\0"
- "SJIS" "\0" "SHIFT_JIS" "\0"
- "ARMSCII-8" "\0" "ARMSCII-8" "\0"
- "PT154" "\0" "PT154" "\0"
- /*"ISCII-DEV" "\0" "?" "\0"*/
- "*" "\0" "UTF-8" "\0";
-# endif
+/* On these platforms, we use a mapping from locale name to GNU canonical
+ encoding name. */
-# 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";
+struct table_entry
+{
+ const char locale[17+1];
+ const char canonical[11+1];
+};
+
+/* Table of platform-dependent mappings, sorted in ascending order. */
+static const struct table_entry locale_table[] =
+ {
+# if defined __FreeBSD__ /* FreeBSD 4.2 */
+ { "cs_CZ.ISO_8859-2", "ISO-8859-2" },
+ { "da_DK.DIS_8859-15", "ISO-8859-15" },
+ { "da_DK.ISO_8859-1", "ISO-8859-1" },
+ { "de_AT.DIS_8859-15", "ISO-8859-15" },
+ { "de_AT.ISO_8859-1", "ISO-8859-1" },
+ { "de_CH.DIS_8859-15", "ISO-8859-15" },
+ { "de_CH.ISO_8859-1", "ISO-8859-1" },
+ { "de_DE.DIS_8859-15", "ISO-8859-15" },
+ { "de_DE.ISO_8859-1", "ISO-8859-1" },
+ { "en_AU.DIS_8859-15", "ISO-8859-15" },
+ { "en_AU.ISO_8859-1", "ISO-8859-1" },
+ { "en_CA.DIS_8859-15", "ISO-8859-15" },
+ { "en_CA.ISO_8859-1", "ISO-8859-1" },
+ { "en_GB.DIS_8859-15", "ISO-8859-15" },
+ { "en_GB.ISO_8859-1", "ISO-8859-1" },
+ { "en_US.DIS_8859-15", "ISO-8859-15" },
+ { "en_US.ISO_8859-1", "ISO-8859-1" },
+ { "es_ES.DIS_8859-15", "ISO-8859-15" },
+ { "es_ES.ISO_8859-1", "ISO-8859-1" },
+ { "fi_FI.DIS_8859-15", "ISO-8859-15" },
+ { "fi_FI.ISO_8859-1", "ISO-8859-1" },
+ { "fr_BE.DIS_8859-15", "ISO-8859-15" },
+ { "fr_BE.ISO_8859-1", "ISO-8859-1" },
+ { "fr_CA.DIS_8859-15", "ISO-8859-15" },
+ { "fr_CA.ISO_8859-1", "ISO-8859-1" },
+ { "fr_CH.DIS_8859-15", "ISO-8859-15" },
+ { "fr_CH.ISO_8859-1", "ISO-8859-1" },
+ { "fr_FR.DIS_8859-15", "ISO-8859-15" },
+ { "fr_FR.ISO_8859-1", "ISO-8859-1" },
+ { "hr_HR.ISO_8859-2", "ISO-8859-2" },
+ { "hu_HU.ISO_8859-2", "ISO-8859-2" },
+ { "is_IS.DIS_8859-15", "ISO-8859-15" },
+ { "is_IS.ISO_8859-1", "ISO-8859-1" },
+ { "it_CH.DIS_8859-15", "ISO-8859-15" },
+ { "it_CH.ISO_8859-1", "ISO-8859-1" },
+ { "it_IT.DIS_8859-15", "ISO-8859-15" },
+ { "it_IT.ISO_8859-1", "ISO-8859-1" },
+ { "ja_JP.EUC", "EUC-JP" },
+ { "ja_JP.SJIS", "SHIFT_JIS" },
+ { "ja_JP.Shift_JIS", "SHIFT_JIS" },
+ { "ko_KR.EUC", "EUC-KR" },
+ { "la_LN.ASCII", "ASCII" },
+ { "la_LN.DIS_8859-15", "ISO-8859-15" },
+ { "la_LN.ISO_8859-1", "ISO-8859-1" },
+ { "la_LN.ISO_8859-2", "ISO-8859-2" },
+ { "la_LN.ISO_8859-4", "ISO-8859-4" },
+ { "lt_LN.ASCII", "ASCII" },
+ { "lt_LN.DIS_8859-15", "ISO-8859-15" },
+ { "lt_LN.ISO_8859-1", "ISO-8859-1" },
+ { "lt_LN.ISO_8859-2", "ISO-8859-2" },
+ { "lt_LT.ISO_8859-4", "ISO-8859-4" },
+ { "nl_BE.DIS_8859-15", "ISO-8859-15" },
+ { "nl_BE.ISO_8859-1", "ISO-8859-1" },
+ { "nl_NL.DIS_8859-15", "ISO-8859-15" },
+ { "nl_NL.ISO_8859-1", "ISO-8859-1" },
+ { "no_NO.DIS_8859-15", "ISO-8859-15" },
+ { "no_NO.ISO_8859-1", "ISO-8859-1" },
+ { "pl_PL.ISO_8859-2", "ISO-8859-2" },
+ { "pt_PT.DIS_8859-15", "ISO-8859-15" },
+ { "pt_PT.ISO_8859-1", "ISO-8859-1" },
+ { "ru_RU.CP866", "CP866" },
+ { "ru_RU.ISO_8859-5", "ISO-8859-5" },
+ { "ru_RU.KOI8-R", "KOI8-R" },
+ { "ru_SU.CP866", "CP866" },
+ { "ru_SU.ISO_8859-5", "ISO-8859-5" },
+ { "ru_SU.KOI8-R", "KOI8-R" },
+ { "sl_SI.ISO_8859-2", "ISO-8859-2" },
+ { "sv_SE.DIS_8859-15", "ISO-8859-15" },
+ { "sv_SE.ISO_8859-1", "ISO-8859-1" },
+ { "uk_UA.KOI8-U", "KOI8-U" },
+ { "zh_CN.EUC", "GB2312" },
+ { "zh_TW.BIG5", "BIG5" },
+ { "zh_TW.Big5", "BIG5" }
+# define locale_table_defined
# endif
-
-# if defined WINDOWS_NATIVE || defined __CYGWIN__
- /* 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. */
-
- 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"
- "CP28593" "\0" "ISO-8859-3" "\0"
- "CP28594" "\0" "ISO-8859-4" "\0"
- "CP28595" "\0" "ISO-8859-5" "\0"
- "CP28596" "\0" "ISO-8859-6" "\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"
- "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";
+# if defined __DJGPP__ /* DOS / DJGPP 2.03 */
+ /* The encodings given here may not all be correct.
+ If you find that the encoding given for your language and
+ country is not the one your DOS machine actually uses, just
+ correct it in this file, and send a mail to
+ Juan Manuel Guerrero <juan.guerrero@gmx.de>
+ and <bug-gnulib@gnu.org>. */
+ { "C", "ASCII" },
+ { "ar", "CP864" },
+ { "ar_AE", "CP864" },
+ { "ar_DZ", "CP864" },
+ { "ar_EG", "CP864" },
+ { "ar_IQ", "CP864" },
+ { "ar_IR", "CP864" },
+ { "ar_JO", "CP864" },
+ { "ar_KW", "CP864" },
+ { "ar_MA", "CP864" },
+ { "ar_OM", "CP864" },
+ { "ar_QA", "CP864" },
+ { "ar_SA", "CP864" },
+ { "ar_SY", "CP864" },
+ { "be", "CP866" },
+ { "be_BE", "CP866" },
+ { "bg", "CP866" }, /* not CP855 ?? */
+ { "bg_BG", "CP866" }, /* not CP855 ?? */
+ { "ca", "CP850" },
+ { "ca_ES", "CP850" },
+ { "cs", "CP852" },
+ { "cs_CZ", "CP852" },
+ { "da", "CP865" }, /* not CP850 ?? */
+ { "da_DK", "CP865" }, /* not CP850 ?? */
+ { "de", "CP850" },
+ { "de_AT", "CP850" },
+ { "de_CH", "CP850" },
+ { "de_DE", "CP850" },
+ { "el", "CP869" },
+ { "el_GR", "CP869" },
+ { "en", "CP850" },
+ { "en_AU", "CP850" }, /* not CP437 ?? */
+ { "en_CA", "CP850" },
+ { "en_GB", "CP850" },
+ { "en_NZ", "CP437" },
+ { "en_US", "CP437" },
+ { "en_ZA", "CP850" }, /* not CP437 ?? */
+ { "eo", "CP850" },
+ { "eo_EO", "CP850" },
+ { "es", "CP850" },
+ { "es_AR", "CP850" },
+ { "es_BO", "CP850" },
+ { "es_CL", "CP850" },
+ { "es_CO", "CP850" },
+ { "es_CR", "CP850" },
+ { "es_CU", "CP850" },
+ { "es_DO", "CP850" },
+ { "es_EC", "CP850" },
+ { "es_ES", "CP850" },
+ { "es_GT", "CP850" },
+ { "es_HN", "CP850" },
+ { "es_MX", "CP850" },
+ { "es_NI", "CP850" },
+ { "es_PA", "CP850" },
+ { "es_PE", "CP850" },
+ { "es_PY", "CP850" },
+ { "es_SV", "CP850" },
+ { "es_UY", "CP850" },
+ { "es_VE", "CP850" },
+ { "et", "CP850" },
+ { "et_EE", "CP850" },
+ { "eu", "CP850" },
+ { "eu_ES", "CP850" },
+ { "fi", "CP850" },
+ { "fi_FI", "CP850" },
+ { "fr", "CP850" },
+ { "fr_BE", "CP850" },
+ { "fr_CA", "CP850" },
+ { "fr_CH", "CP850" },
+ { "fr_FR", "CP850" },
+ { "ga", "CP850" },
+ { "ga_IE", "CP850" },
+ { "gd", "CP850" },
+ { "gd_GB", "CP850" },
+ { "gl", "CP850" },
+ { "gl_ES", "CP850" },
+ { "he", "CP862" },
+ { "he_IL", "CP862" },
+ { "hr", "CP852" },
+ { "hr_HR", "CP852" },
+ { "hu", "CP852" },
+ { "hu_HU", "CP852" },
+ { "id", "CP850" }, /* not CP437 ?? */
+ { "id_ID", "CP850" }, /* not CP437 ?? */
+ { "is", "CP861" }, /* not CP850 ?? */
+ { "is_IS", "CP861" }, /* not CP850 ?? */
+ { "it", "CP850" },
+ { "it_CH", "CP850" },
+ { "it_IT", "CP850" },
+ { "ja", "CP932" },
+ { "ja_JP", "CP932" },
+ { "kr", "CP949" }, /* not CP934 ?? */
+ { "kr_KR", "CP949" }, /* not CP934 ?? */
+ { "lt", "CP775" },
+ { "lt_LT", "CP775" },
+ { "lv", "CP775" },
+ { "lv_LV", "CP775" },
+ { "mk", "CP866" }, /* not CP855 ?? */
+ { "mk_MK", "CP866" }, /* not CP855 ?? */
+ { "mt", "CP850" },
+ { "mt_MT", "CP850" },
+ { "nb", "CP865" }, /* not CP850 ?? */
+ { "nb_NO", "CP865" }, /* not CP850 ?? */
+ { "nl", "CP850" },
+ { "nl_BE", "CP850" },
+ { "nl_NL", "CP850" },
+ { "nn", "CP865" }, /* not CP850 ?? */
+ { "nn_NO", "CP865" }, /* not CP850 ?? */
+ { "no", "CP865" }, /* not CP850 ?? */
+ { "no_NO", "CP865" }, /* not CP850 ?? */
+ { "pl", "CP852" },
+ { "pl_PL", "CP852" },
+ { "pt", "CP850" },
+ { "pt_BR", "CP850" },
+ { "pt_PT", "CP850" },
+ { "ro", "CP852" },
+ { "ro_RO", "CP852" },
+ { "ru", "CP866" },
+ { "ru_RU", "CP866" },
+ { "sk", "CP852" },
+ { "sk_SK", "CP852" },
+ { "sl", "CP852" },
+ { "sl_SI", "CP852" },
+ { "sq", "CP852" },
+ { "sq_AL", "CP852" },
+ { "sr", "CP852" }, /* CP852 or CP866 or CP855 ?? */
+ { "sr_CS", "CP852" }, /* CP852 or CP866 or CP855 ?? */
+ { "sr_YU", "CP852" }, /* CP852 or CP866 or CP855 ?? */
+ { "sv", "CP850" },
+ { "sv_SE", "CP850" },
+ { "th", "CP874" },
+ { "th_TH", "CP874" },
+ { "tr", "CP857" },
+ { "tr_TR", "CP857" },
+ { "uk", "CP1125" },
+ { "uk_UA", "CP1125" },
+ { "zh_CN", "GBK" },
+ { "zh_TW", "CP950" } /* not CP938 ?? */
+# define locale_table_defined
# endif
-# if defined OS2
- /* 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. */
-
- /* The list of encodings is taken from "List of OS/2 Codepages"
- by Alex Taylor:
- <http://altsan.org/os2/toolkits/uls/index.html#codepages>.
- See also "IBM Globalization - Code page identifiers":
- <https://www-01.ibm.com/software/globalization/cp/cp_cpgid.html>. */
- cp = "CP813" "\0" "ISO-8859-7" "\0"
- "CP878" "\0" "KOI8-R" "\0"
- "CP819" "\0" "ISO-8859-1" "\0"
- "CP912" "\0" "ISO-8859-2" "\0"
- "CP913" "\0" "ISO-8859-3" "\0"
- "CP914" "\0" "ISO-8859-4" "\0"
- "CP915" "\0" "ISO-8859-5" "\0"
- "CP916" "\0" "ISO-8859-8" "\0"
- "CP920" "\0" "ISO-8859-9" "\0"
- "CP921" "\0" "ISO-8859-13" "\0"
- "CP923" "\0" "ISO-8859-15" "\0"
- "CP954" "\0" "EUC-JP" "\0"
- "CP964" "\0" "EUC-TW" "\0"
- "CP970" "\0" "EUC-KR" "\0"
- "CP1089" "\0" "ISO-8859-6" "\0"
- "CP1208" "\0" "UTF-8" "\0"
- "CP1381" "\0" "GB2312" "\0"
- "CP1386" "\0" "GBK" "\0"
- "CP3372" "\0" "EUC-JP" "\0";
+# ifndef locale_table_defined
+ /* Just a dummy entry, to avoid a C syntax error. */
+ { "", "" }
# endif
+ };
+
#endif
- charset_aliases = cp;
- }
-
- return cp;
-}
/* Determine the current locale's character encoding, and canonicalize it
- into one of the canonical names listed in config.charset.
- The result must not be freed; it is statically allocated.
+ into one of the canonical names listed below.
+ The result must not be freed; it is statically allocated. The result
+ becomes invalid when setlocale() is used to change the global locale, or
+ when the value of one of the environment variables LC_ALL, LC_CTYPE, LANG
+ is changed; threads in multithreaded programs should not do this.
If the canonical name cannot be determined, the result is a non-canonical
name. */
@@ -408,9 +831,15 @@ const char *
locale_charset (void)
{
const char *codeset;
- const char *aliases;
-#if !(defined WINDOWS_NATIVE || defined OS2)
+ /* This function must be multithread-safe. To achieve this without using
+ thread-local storage, we use a simple strcpy or memcpy to fill this static
+ buffer. Filling it through, for example, strcpy + strcat would not be
+ guaranteed to leave the buffer's contents intact if another thread is
+ currently accessing it. If necessary, the contents is first assembled in
+ a stack-allocated buffer. */
+
+#if HAVE_LANGINFO_CODESET || defined WINDOWS_NATIVE || defined OS2
# if HAVE_LANGINFO_CODESET
@@ -424,7 +853,7 @@ locale_charset (void)
if (codeset != NULL && strcmp (codeset, "US-ASCII") == 0)
{
const char *locale;
- static char buf[2 + 10 + 1];
+ static char resultbuf[2 + 10 + 1];
locale = getenv ("LC_ALL");
if (locale == NULL || locale[0] == '\0')
@@ -448,11 +877,12 @@ locale_charset (void)
modifier = strchr (dot, '@');
if (modifier == NULL)
return dot;
- if (modifier - dot < sizeof (buf))
+ if (modifier - dot < sizeof (resultbuf))
{
- memcpy (buf, dot, modifier - dot);
- buf [modifier - dot] = '\0';
- return buf;
+ /* This way of filling resultbuf is multithread-safe. */
+ memcpy (resultbuf, dot, modifier - dot);
+ resultbuf [modifier - dot] = '\0';
+ return resultbuf;
}
}
}
@@ -468,79 +898,60 @@ locale_charset (void)
converting to GetConsoleOutputCP(). This leads to correct results,
except when SetConsoleOutputCP has been called and a raster font is
in use. */
- sprintf (buf, "CP%u", GetACP ());
- codeset = buf;
- }
-# endif
-
-# else
-
- /* On old systems which lack it, use setlocale or getenv. */
- const char *locale = NULL;
+ {
+ char buf[2 + 10 + 1];
- /* 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
- use setlocale here; it would return "C" when it doesn't support the
- locale name the user has set. */
-# if 0
- locale = setlocale (LC_CTYPE, NULL);
-# endif
- if (locale == NULL || locale[0] == '\0')
- {
- locale = getenv ("LC_ALL");
- if (locale == NULL || locale[0] == '\0')
- {
- locale = getenv ("LC_CTYPE");
- if (locale == NULL || locale[0] == '\0')
- locale = getenv ("LANG");
- }
+ sprintf (buf, "CP%u", GetACP ());
+ strcpy (resultbuf, buf);
+ codeset = resultbuf;
+ }
}
+# endif
- /* 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
- through the charset.alias file. */
- codeset = locale;
-
-# endif
+ if (codeset == NULL)
+ /* The canonical name cannot be determined. */
+ codeset = "";
-#elif defined WINDOWS_NATIVE
+# elif defined WINDOWS_NATIVE
- static char buf[2 + 10 + 1];
+ char buf[2 + 10 + 1];
+ static char resultbuf[2 + 10 + 1];
/* The Windows API has a function returning the locale's codepage as
a number, but the value doesn't change according to what the
'setlocale' call specified. So we use it as a last resort, in
case the string returned by 'setlocale' doesn't specify the
codepage. */
- char *current_locale = setlocale (LC_ALL, NULL);
- char *pdot;
+ char *current_locale = setlocale (LC_CTYPE, NULL);
+ char *pdot = strrchr (current_locale, '.');
- /* If they set different locales for different categories,
- 'setlocale' will return a semi-colon separated list of locale
- values. To make sure we use the correct one, we choose LC_CTYPE. */
- if (strchr (current_locale, ';'))
- current_locale = setlocale (LC_CTYPE, NULL);
-
- pdot = strrchr (current_locale, '.');
if (pdot && 2 + strlen (pdot + 1) + 1 <= sizeof (buf))
sprintf (buf, "CP%s", pdot + 1);
else
{
/* The Windows API has a function returning the locale's codepage as a
- number: GetACP().
- When the output goes to a console window, it needs to be provided in
- GetOEMCP() encoding if the console is using a raster font, or in
- GetConsoleOutputCP() encoding if it is using a TrueType font.
- But in GUI programs and for output sent to files and pipes, GetACP()
- encoding is the best bet. */
+ number: GetACP().
+ When the output goes to a console window, it needs to be provided in
+ GetOEMCP() encoding if the console is using a raster font, or in
+ GetConsoleOutputCP() encoding if it is using a TrueType font.
+ But in GUI programs and for output sent to files and pipes, GetACP()
+ encoding is the best bet. */
sprintf (buf, "CP%u", GetACP ());
}
- codeset = buf;
+ /* For a locale name such as "French_France.65001", in Windows 10,
+ setlocale now returns "French_France.utf8" instead. */
+ if (strcmp (buf + 2, "65001") == 0 || strcmp (buf + 2, "utf8") == 0)
+ codeset = "UTF-8";
+ else
+ {
+ strcpy (resultbuf, buf);
+ codeset = resultbuf;
+ }
-#elif defined OS2
+# elif defined OS2
const char *locale;
- static char buf[2 + 10 + 1];
+ static char resultbuf[2 + 10 + 1];
ULONG cp[3];
ULONG cplen;
@@ -569,11 +980,12 @@ locale_charset (void)
modifier = strchr (dot, '@');
if (modifier == NULL)
return dot;
- if (modifier - dot < sizeof (buf))
+ if (modifier - dot < sizeof (resultbuf))
{
- memcpy (buf, dot, modifier - dot);
- buf [modifier - dot] = '\0';
- return buf;
+ /* This way of filling resultbuf is multithread-safe. */
+ memcpy (resultbuf, dot, modifier - dot);
+ resultbuf [modifier - dot] = '\0';
+ return resultbuf;
}
}
@@ -589,33 +1001,152 @@ locale_charset (void)
codeset = "";
else
{
+ char buf[2 + 10 + 1];
+
sprintf (buf, "CP%u", cp[0]);
- codeset = buf;
+ strcpy (resultbuf, buf);
+ codeset = resultbuf;
}
}
-#endif
+# else
- if (codeset == NULL)
- /* The canonical name cannot be determined. */
- codeset = "";
+# error "Add code for other platforms here."
+
+# endif
+
+ /* Resolve alias. */
+ {
+# ifdef alias_table_defined
+ /* On some platforms, UTF-8 locales are the most frequently used ones.
+ Speed up the common case and slow down the less common cases by
+ testing for this case first. */
+# if defined __OpenBSD__ || (defined __APPLE__ && defined __MACH__) || defined __sun || defined __CYGWIN__
+ if (strcmp (codeset, "UTF-8") == 0)
+ goto done_table_lookup;
+ else
+# endif
+ {
+ const struct table_entry * const table = alias_table;
+ size_t const table_size =
+ sizeof (alias_table) / sizeof (struct table_entry);
+ /* The table is sorted. Perform a binary search. */
+ size_t hi = table_size;
+ size_t lo = 0;
+ while (lo < hi)
+ {
+ /* Invariant:
+ for i < lo, strcmp (table[i].alias, codeset) < 0,
+ for i >= hi, strcmp (table[i].alias, codeset) > 0. */
+ size_t mid = (hi + lo) >> 1; /* >= lo, < hi */
+ int cmp = strcmp (table[mid].alias, codeset);
+ if (cmp < 0)
+ lo = mid + 1;
+ else if (cmp > 0)
+ hi = mid;
+ else
+ {
+ /* Found an i with
+ strcmp (table[i].alias, codeset) == 0. */
+ codeset = table[mid].canonical;
+ goto done_table_lookup;
+ }
+ }
+ }
+ if (0)
+ done_table_lookup: ;
+ else
+# endif
+ {
+ /* Did not find it in the table. */
+ /* On Mac OS X, all modern locales use the UTF-8 encoding.
+ BeOS and Haiku have a single locale, and it has UTF-8 encoding. */
+# if (defined __APPLE__ && defined __MACH__) || defined __BEOS__ || defined __HAIKU__
+ codeset = "UTF-8";
+# else
+ /* Don't return an empty string. GNU libc and GNU libiconv interpret
+ the empty string as denoting "the locale's character encoding",
+ thus GNU libiconv would call this function a second time. */
+ if (codeset[0] == '\0')
+ codeset = "ASCII";
+# endif
+ }
+ }
+
+#else
+
+ /* On old systems which lack it, use setlocale or getenv. */
+ const char *locale = NULL;
+
+ /* But most old systems don't have a complete set of locales. Some
+ (like DJGPP) have only the C locale. Therefore we don't use setlocale
+ here; it would return "C" when it doesn't support the locale name the
+ user has set. */
+# if 0
+ locale = setlocale (LC_CTYPE, NULL);
+# endif
+ if (locale == NULL || locale[0] == '\0')
+ {
+ locale = getenv ("LC_ALL");
+ if (locale == NULL || locale[0] == '\0')
+ {
+ locale = getenv ("LC_CTYPE");
+ if (locale == NULL || locale[0] == '\0')
+ locale = getenv ("LANG");
+ if (locale == NULL)
+ locale = "";
+ }
+ }
- /* Resolve alias. */
- for (aliases = get_charset_aliases ();
- *aliases != '\0';
- aliases += strlen (aliases) + 1, aliases += strlen (aliases) + 1)
- if (strcmp (codeset, aliases) == 0
- || (aliases[0] == '*' && aliases[1] == '\0'))
+ /* Map locale name to canonical encoding name. */
+ {
+# ifdef locale_table_defined
+ const struct table_entry * const table = locale_table;
+ size_t const table_size =
+ sizeof (locale_table) / sizeof (struct table_entry);
+ /* The table is sorted. Perform a binary search. */
+ size_t hi = table_size;
+ size_t lo = 0;
+ while (lo < hi)
{
- codeset = aliases + strlen (aliases) + 1;
- break;
+ /* Invariant:
+ for i < lo, strcmp (table[i].locale, locale) < 0,
+ for i >= hi, strcmp (table[i].locale, locale) > 0. */
+ size_t mid = (hi + lo) >> 1; /* >= lo, < hi */
+ int cmp = strcmp (table[mid].locale, locale);
+ if (cmp < 0)
+ lo = mid + 1;
+ else if (cmp > 0)
+ hi = mid;
+ else
+ {
+ /* Found an i with
+ strcmp (table[i].locale, locale) == 0. */
+ codeset = table[mid].canonical;
+ goto done_table_lookup;
+ }
+ }
+ if (0)
+ done_table_lookup: ;
+ else
+# endif
+ {
+ /* Did not find it in the table. */
+ /* On Mac OS X, all modern locales use the UTF-8 encoding.
+ BeOS and Haiku have a single locale, and it has UTF-8 encoding. */
+# if (defined __APPLE__ && defined __MACH__) || defined __BEOS__ || defined __HAIKU__
+ codeset = "UTF-8";
+# else
+ /* The canonical name cannot be determined. */
+ /* Don't return an empty string. GNU libc and GNU libiconv interpret
+ the empty string as denoting "the locale's character encoding",
+ thus GNU libiconv would call this function a second time. */
+ codeset = "ASCII";
+# endif
}
+ }
- /* Don't return an empty string. GNU libc and GNU libiconv interpret
- the empty string as denoting "the locale's character encoding",
- thus GNU libiconv would call this function a second time. */
- if (codeset[0] == '\0')
- codeset = "ASCII";
+#endif
#ifdef DARWIN7
/* Mac OS X sets MB_CUR_MAX to 1 when LC_ALL=C, and "UTF-8"
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-07 18:58:42 +0000