| 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
|
|
|
|
|