Index: bison/src/bison/2.4.1/bison-2.4.1-src/lib/localcharset.c |
=================================================================== |
--- bison/src/bison/2.4.1/bison-2.4.1-src/lib/localcharset.c (revision 0) |
+++ bison/src/bison/2.4.1/bison-2.4.1-src/lib/localcharset.c (revision 0) |
@@ -0,0 +1,464 @@ |
+/* -*- buffer-read-only: t -*- vi: set ro: */ |
+/* DO NOT EDIT! GENERATED AUTOMATICALLY! */ |
+/* Determine a canonical name for the current locale's character encoding. |
+ |
+ Copyright (C) 2000-2006, 2008 Free Software Foundation, Inc. |
+ |
+ 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 3, 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 General Public License for more details. |
+ |
+ 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> |
+ |
+/* Specification. */ |
+#include "localcharset.h" |
+ |
+#include <stddef.h> |
+#include <stdio.h> |
+#include <string.h> |
+#include <stdlib.h> |
+ |
+#if defined _WIN32 || defined __WIN32__ |
+# define WIN32_NATIVE |
+#endif |
+ |
+#if defined __EMX__ |
+/* Assume EMX program runs on OS/2, even if compiled under DOS. */ |
+# ifndef OS2 |
+# define OS2 |
+# endif |
+#endif |
+ |
+#if !defined WIN32_NATIVE |
+# if HAVE_LANGINFO_CODESET |
+# include <langinfo.h> |
+# else |
+# if 0 /* see comment below */ |
+# include <locale.h> |
+# endif |
+# endif |
+# ifdef __CYGWIN__ |
+# define WIN32_LEAN_AND_MEAN |
+# include <windows.h> |
+# endif |
+#elif defined WIN32_NATIVE |
+# define WIN32_LEAN_AND_MEAN |
+# include <windows.h> |
+#endif |
+#if defined OS2 |
+# define INCL_DOS |
+# include <os2.h> |
+#endif |
+ |
+#if ENABLE_RELOCATABLE |
+# include "relocatable.h" |
+#else |
+# define relocate(pathname) (pathname) |
+#endif |
+ |
+/* Get LIBDIR. */ |
+#ifndef LIBDIR |
+# include "configmake.h" |
+#endif |
+ |
+#if defined _WIN32 || defined __WIN32__ || defined __CYGWIN__ || defined __EMX__ || defined __DJGPP__ |
+ /* Win32, Cygwin, OS/2, DOS */ |
+# define ISSLASH(C) ((C) == '/' || (C) == '\\') |
+#endif |
+ |
+#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) |
+{ |
+ const char *cp; |
+ |
+ cp = charset_aliases; |
+ if (cp == NULL) |
+ { |
+#if !(defined VMS || defined WIN32_NATIVE || defined __CYGWIN__) |
+ FILE *fp; |
+ 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); |
+ 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); |
+ } |
+ } |
+ |
+ if (file_name == NULL || (fp = fopen (file_name, "r")) == NULL) |
+ /* Out of memory or file not found, treat it as empty. */ |
+ 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; |
+ if (old_res_ptr != NULL) |
+ 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; |
+ } |
+ } |
+ |
+ if (file_name != NULL) |
+ free (file_name); |
+ |
+#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_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"; |
+# 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. |
+ If the canonical name cannot be determined, the result is a non-canonical |
+ name. */ |
+ |
+#ifdef STATIC |
+STATIC |
+#endif |
+const char * |
+locale_charset (void) |
+{ |
+ const char *codeset; |
+ const char *aliases; |
+ |
+#if !(defined WIN32_NATIVE || defined OS2) |
+ |
+# if HAVE_LANGINFO_CODESET |
+ |
+ /* Most systems support nl_langinfo (CODESET) nowadays. */ |
+ codeset = nl_langinfo (CODESET); |
+ |
+# ifdef __CYGWIN__ |
+ /* Cygwin 2006 does not have locales. nl_langinfo (CODESET) always |
+ returns "US-ASCII". As long as this is not fixed, return the suffix |
+ of the locale name from the environment variables (if present) or |
+ the codepage as a number. */ |
+ if (codeset != NULL && strcmp (codeset, "US-ASCII") == 0) |
+ { |
+ const char *locale; |
+ static char buf[2 + 10 + 1]; |
+ |
+ 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[0] != '\0') |
+ { |
+ /* If the locale name contains an encoding after the dot, return |
+ it. */ |
+ const char *dot = strchr (locale, '.'); |
+ |
+ if (dot != NULL) |
+ { |
+ const char *modifier; |
+ |
+ dot++; |
+ /* Look for the possible @... trailer and remove it, if any. */ |
+ modifier = strchr (dot, '@'); |
+ if (modifier == NULL) |
+ return dot; |
+ if (modifier - dot < sizeof (buf)) |
+ { |
+ memcpy (buf, dot, modifier - dot); |
+ buf [modifier - dot] = '\0'; |
+ return buf; |
+ } |
+ } |
+ } |
+ |
+ /* Woe32 has a function returning the locale's codepage as a number. */ |
+ sprintf (buf, "CP%u", GetACP ()); |
+ codeset = buf; |
+ } |
+# 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 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"); |
+ } |
+ } |
+ |
+ /* 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 |
+ |
+#elif defined WIN32_NATIVE |
+ |
+ static char buf[2 + 10 + 1]; |
+ |
+ /* Woe32 has a function returning the locale's codepage as a number. */ |
+ sprintf (buf, "CP%u", GetACP ()); |
+ codeset = buf; |
+ |
+#elif defined OS2 |
+ |
+ const char *locale; |
+ static char buf[2 + 10 + 1]; |
+ ULONG cp[3]; |
+ ULONG cplen; |
+ |
+ /* Allow user to override the codeset, as set in the operating system, |
+ with standard language environment variables. */ |
+ 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[0] != '\0') |
+ { |
+ /* If the locale name contains an encoding after the dot, return it. */ |
+ const char *dot = strchr (locale, '.'); |
+ |
+ if (dot != NULL) |
+ { |
+ const char *modifier; |
+ |
+ dot++; |
+ /* Look for the possible @... trailer and remove it, if any. */ |
+ modifier = strchr (dot, '@'); |
+ if (modifier == NULL) |
+ return dot; |
+ if (modifier - dot < sizeof (buf)) |
+ { |
+ memcpy (buf, dot, modifier - dot); |
+ buf [modifier - dot] = '\0'; |
+ return buf; |
+ } |
+ } |
+ |
+ /* Resolve through the charset.alias file. */ |
+ codeset = locale; |
+ } |
+ else |
+ { |
+ /* OS/2 has a function returning the locale's codepage as a number. */ |
+ if (DosQueryCp (sizeof (cp), cp, &cplen)) |
+ codeset = ""; |
+ else |
+ { |
+ sprintf (buf, "CP%u", cp[0]); |
+ codeset = buf; |
+ } |
+ } |
+ |
+#endif |
+ |
+ if (codeset == NULL) |
+ /* The canonical name cannot be determined. */ |
+ codeset = ""; |
+ |
+ /* 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')) |
+ { |
+ codeset = aliases + strlen (aliases) + 1; |
+ break; |
+ } |
+ |
+ /* 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"; |
+ |
+ return codeset; |
+} |
Property changes on: bison\src\bison\2.4.1\bison-2.4.1-src\lib\localcharset.c |
___________________________________________________________________ |
Added: svn:eol-style |
+ LF |