tools/wrc/utils.c - wine - Git at Google

 /*
  * Utility routines
  *
  * Copyright 1998 Bertho A. Stultiens
  *
  * This library 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.
  *
  * This library 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
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  */

 #include "config.h"
 #include "wine/port.h"

 #include <assert.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <stdarg.h>
 #include <string.h>
 #include <assert.h>
 #include <ctype.h>

 #include "wine/unicode.h"
 #include "wrc.h"
 #include "utils.h"
 #include "parser.h"

 /* #define WANT_NEAR_INDICATION */

 #ifdef WANT_NEAR_INDICATION
 void make_print(char *str)
 {
 	while(*str)
 	{
 		if(!isprint(*str))
 			*str = ' ';
 		str++;
 	}
 }
 #endif

 static void generic_msg(const char *s, const char *t, const char *n, va_list ap)
 {
 	fprintf(stderr, "%s:%d:%d: %s: ", input_name ? input_name : "stdin", line_number, char_number, t);
 	vfprintf(stderr, s, ap);
 #ifdef WANT_NEAR_INDICATION
 	{
 		char *cpy;
 		if(n)
 		{
 			cpy = xstrdup(n);
 			make_print(cpy);
 			fprintf(stderr, " near '%s'", cpy);
 			free(cpy);
 		}
 	}
 #endif
 	fprintf(stderr, "\n");
 }


 int parser_error(const char *s, ...)
 {
 	va_list ap;
 	va_start(ap, s);
 	generic_msg(s, "Error", parser_text, ap);
 	va_end(ap);
 	exit(1);
 	return 1;
 }

 int parser_warning(const char *s, ...)
 {
 	va_list ap;
 	va_start(ap, s);
 	generic_msg(s, "Warning", parser_text, ap);
 	va_end(ap);
 	return 0;
 }

 void internal_error(const char *file, int line, const char *s, ...)
 {
 	va_list ap;
 	va_start(ap, s);
 	fprintf(stderr, "Internal error (please report) %s %d: ", file, line);
 	vfprintf(stderr, s, ap);
 	fprintf(stderr, "\n");
 	va_end(ap);
 	exit(3);
 }

 void error(const char *s, ...)
 {
 	va_list ap;
 	va_start(ap, s);
 	fprintf(stderr, "Error: ");
 	vfprintf(stderr, s, ap);
 	fprintf(stderr, "\n");
 	va_end(ap);
 	exit(2);
 }

 void warning(const char *s, ...)
 {
 	va_list ap;
 	va_start(ap, s);
 	fprintf(stderr, "Warning: ");
 	vfprintf(stderr, s, ap);
 	fprintf(stderr, "\n");
 	va_end(ap);
 }

 void chat(const char *s, ...)
 {
 	if(debuglevel & DEBUGLEVEL_CHAT)
 	{
 		va_list ap;
 		va_start(ap, s);
 		fprintf(stderr, "FYI: ");
 		vfprintf(stderr, s, ap);
 		fprintf(stderr, "\n");
 		va_end(ap);
 	}
 }

 char *dup_basename(const char *name, const char *ext)
 {
 	int namelen;
 	int extlen = strlen(ext);
 	char *base;
 	char *slash;

 	if(!name)
 		name = "wrc.tab";

 	slash = strrchr(name, '/');
 	if (slash)
 		name = slash + 1;

 	namelen = strlen(name);

 	/* +4 for later extension and +1 for '\0' */
 	base = xmalloc(namelen +4 +1);
 	strcpy(base, name);
 	if(!strcasecmp(name + namelen-extlen, ext))
 	{
 		base[namelen - extlen] = '\0';
 	}
 	return base;
 }

 void *xmalloc(size_t size)
 {
     void *res;

     assert(size > 0);
     res = malloc(size);
     if(res == NULL)
     {
 	error("Virtual memory exhausted.\n");
     }
     memset(res, 0x55, size);
     return res;
 }


 void *xrealloc(void *p, size_t size)
 {
     void *res;

     assert(size > 0);
     res = realloc(p, size);
     if(res == NULL)
     {
 	error("Virtual memory exhausted.\n");
     }
     return res;
 }

 char *xstrdup(const char *str)
 {
 	char *s;

 	assert(str != NULL);
 	s = xmalloc(strlen(str)+1);
 	return strcpy(s, str);
 }


 /*
  *****************************************************************************
  * Function	: compare_name_id
  * Syntax	: int compare_name_id(const name_id_t *n1, const name_id_t *n2)
  * Input	:
  * Output	:
  * Description	:
  * Remarks	:
  *****************************************************************************
 */
 int compare_name_id(const name_id_t *n1, const name_id_t *n2)
 {
 	if(n1->type == name_ord && n2->type == name_ord)
 	{
 		return n1->name.i_name - n2->name.i_name;
 	}
 	else if(n1->type == name_str && n2->type == name_str)
 	{
 		if(n1->name.s_name->type == str_char
 		&& n2->name.s_name->type == str_char)
 		{
 			return strcasecmp(n1->name.s_name->str.cstr, n2->name.s_name->str.cstr);
 		}
 		else if(n1->name.s_name->type == str_unicode
 		&& n2->name.s_name->type == str_unicode)
 		{
 			return strcmpiW(n1->name.s_name->str.wstr, n2->name.s_name->str.wstr);
 		}
 		else
 		{
 			internal_error(__FILE__, __LINE__, "Can't yet compare strings of mixed type");
 		}
 	}
 	else if(n1->type == name_ord && n2->type == name_str)
 		return 1;
 	else if(n1->type == name_str && n2->type == name_ord)
 		return -1;
 	else
 		internal_error(__FILE__, __LINE__, "Comparing name-ids with unknown types (%d, %d)",
 				n1->type, n2->type);

 	return 0; /* Keep the compiler happy */
 }

 string_t *convert_string(const string_t *str, enum str_e type, int codepage)
 {
     const union cptable *cptable = codepage ? wine_cp_get_table( codepage ) : NULL;
     string_t *ret = xmalloc(sizeof(*ret));

     if (!cptable && str->type != type)
         error( "Current language is Unicode only, cannot convert strings" );

     if((str->type == str_char) && (type == str_unicode))
     {
         ret->type     = str_unicode;
         ret->size     = wine_cp_mbstowcs( cptable, 0, str->str.cstr, str->size, NULL, 0 );
         ret->str.wstr = xmalloc( (ret->size+1) * sizeof(WCHAR) );
         wine_cp_mbstowcs( cptable, 0, str->str.cstr, str->size, ret->str.wstr, ret->size );
         ret->str.wstr[ret->size] = 0;
     }
     else if((str->type == str_unicode) && (type == str_char))
     {
         ret->type     = str_char;
         ret->size     = wine_cp_wcstombs( cptable, 0, str->str.wstr, str->size,
                                           NULL, 0, NULL, NULL );
         ret->str.cstr = xmalloc( ret->size + 1 );
         wine_cp_wcstombs( cptable, 0, str->str.wstr, str->size, ret->str.cstr, ret->size,
                      NULL, NULL );
         ret->str.cstr[ret->size] = 0;
     }
     else if(str->type == str_unicode)
     {
         ret->type     = str_unicode;
         ret->size     = str->size;
         ret->str.wstr = xmalloc(sizeof(WCHAR)*(ret->size+1));
         memcpy( ret->str.wstr, str->str.wstr, ret->size * sizeof(WCHAR) );
         ret->str.wstr[ret->size] = 0;
     }
     else /* str->type == str_char */
     {
         ret->type     = str_char;
         ret->size     = str->size;
         ret->str.cstr = xmalloc( ret->size + 1 );
         memcpy( ret->str.cstr, str->str.cstr, ret->size );
         ret->str.cstr[ret->size] = 0;
     }
     return ret;
 }


 void free_string(string_t *str)
 {
     if (str->type == str_unicode) free( str->str.wstr );
     else free( str->str.cstr );
     free( str );
 }


 int check_unicode_conversion( const string_t *str_a, const string_t *str_w, int codepage )
 {
     int ok;
     string_t *teststr = convert_string( str_w, str_char, codepage );

     ok = (teststr->size == str_a->size && !memcmp( teststr->str.cstr, str_a->str.cstr, str_a->size ));

     if (!ok)
     {
         int i;

         fprintf( stderr, "Source: %s", str_a->str.cstr );
         for (i = 0; i < str_a->size; i++)
             fprintf( stderr, " %02x", (unsigned char)str_a->str.cstr[i] );
         fprintf( stderr, "\nUnicode: " );
         for (i = 0; i < str_w->size; i++)
             fprintf( stderr, " %04x", str_w->str.wstr[i] );
         fprintf( stderr, "\nBack: %s", teststr->str.cstr );
         for (i = 0; i < teststr->size; i++)
             fprintf( stderr, " %02x", (unsigned char)teststr->str.cstr[i] );
         fprintf( stderr, "\n" );
     }
     free_string( teststr );
     return ok;
 }


 struct lang2cp
 {
     unsigned short lang;
     unsigned short sublang;
     unsigned int   cp;
 } lang2cp_t;

 /* language to codepage conversion table */
 /* specific sublanguages need only be specified if their codepage */
 /* differs from the default (SUBLANG_NEUTRAL) */
 static const struct lang2cp lang2cps[] =
 {
     { LANG_AFRIKAANS,      SUBLANG_NEUTRAL,              1252 },
     { LANG_ALBANIAN,       SUBLANG_NEUTRAL,              1250 },
     { LANG_ARABIC,         SUBLANG_NEUTRAL,              1256 },
     { LANG_ARMENIAN,       SUBLANG_NEUTRAL,              0    },
     { LANG_AZERI,          SUBLANG_NEUTRAL,              1254 },
     { LANG_AZERI,          SUBLANG_AZERI_CYRILLIC,       1251 },
     { LANG_BASQUE,         SUBLANG_NEUTRAL,              1252 },
     { LANG_BELARUSIAN,     SUBLANG_NEUTRAL,              1251 },
 #ifdef LANG_BRETON
     { LANG_BRETON,         SUBLANG_NEUTRAL,              1252 },
 #endif /* LANG_BRETON */
     { LANG_BULGARIAN,      SUBLANG_NEUTRAL,              1251 },
     { LANG_CATALAN,        SUBLANG_NEUTRAL,              1252 },
     { LANG_CHINESE,        SUBLANG_NEUTRAL,              950  },
     { LANG_CHINESE,        SUBLANG_CHINESE_SINGAPORE,    936  },
     { LANG_CHINESE,        SUBLANG_CHINESE_SIMPLIFIED,   936  },
 #ifdef LANG_CORNISH
     { LANG_CORNISH,        SUBLANG_NEUTRAL,              1252 },
 #endif /* LANG_CORNISH */
     { LANG_CROATIAN,       SUBLANG_NEUTRAL,              1250 },
     { LANG_CZECH,          SUBLANG_NEUTRAL,              1250 },
     { LANG_DANISH,         SUBLANG_NEUTRAL,              1252 },
     { LANG_DIVEHI,         SUBLANG_NEUTRAL,              0    },
     { LANG_DUTCH,          SUBLANG_NEUTRAL,              1252 },
     { LANG_ENGLISH,        SUBLANG_NEUTRAL,              1252 },
 #ifdef LANG_ESPERANTO
     { LANG_ESPERANTO,      SUBLANG_NEUTRAL,              1252 },
 #endif /* LANG_ESPERANTO */
     { LANG_ESTONIAN,       SUBLANG_NEUTRAL,              1257 },
     { LANG_FAEROESE,       SUBLANG_NEUTRAL,              1252 },
     { LANG_FARSI,          SUBLANG_NEUTRAL,              1256 },
     { LANG_FINNISH,        SUBLANG_NEUTRAL,              1252 },
     { LANG_FRENCH,         SUBLANG_NEUTRAL,              1252 },
 #ifdef LANG_GAELIC
     { LANG_GAELIC,         SUBLANG_NEUTRAL,              1252 },
 #endif /* LANG_GAELIC */
     { LANG_GALICIAN,       SUBLANG_NEUTRAL,              1252 },
     { LANG_GEORGIAN,       SUBLANG_NEUTRAL,              0    },
     { LANG_GERMAN,         SUBLANG_NEUTRAL,              1252 },
     { LANG_GREEK,          SUBLANG_NEUTRAL,              1253 },
     { LANG_GUJARATI,       SUBLANG_NEUTRAL,              0    },
     { LANG_HEBREW,         SUBLANG_NEUTRAL,              1255 },
     { LANG_HINDI,          SUBLANG_NEUTRAL,              0    },
     { LANG_HUNGARIAN,      SUBLANG_NEUTRAL,              1250 },
     { LANG_ICELANDIC,      SUBLANG_NEUTRAL,              1252 },
     { LANG_INDONESIAN,     SUBLANG_NEUTRAL,              1252 },
     { LANG_ITALIAN,        SUBLANG_NEUTRAL,              1252 },
     { LANG_JAPANESE,       SUBLANG_NEUTRAL,              932  },
     { LANG_KANNADA,        SUBLANG_NEUTRAL,              0    },
     { LANG_KAZAK,          SUBLANG_NEUTRAL,              1251 },
     { LANG_KONKANI,        SUBLANG_NEUTRAL,              0    },
     { LANG_KOREAN,         SUBLANG_NEUTRAL,              949  },
     { LANG_KYRGYZ,         SUBLANG_NEUTRAL,              1251 },
     { LANG_LATVIAN,        SUBLANG_NEUTRAL,              1257 },
     { LANG_LITHUANIAN,     SUBLANG_NEUTRAL,              1257 },
     { LANG_MACEDONIAN,     SUBLANG_NEUTRAL,              1251 },
     { LANG_MALAY,          SUBLANG_NEUTRAL,              1252 },
     { LANG_MARATHI,        SUBLANG_NEUTRAL,              0    },
     { LANG_MONGOLIAN,      SUBLANG_NEUTRAL,              1251 },
     { LANG_NEUTRAL,        SUBLANG_NEUTRAL,              1252 },
     { LANG_NORWEGIAN,      SUBLANG_NEUTRAL,              1252 },
     { LANG_POLISH,         SUBLANG_NEUTRAL,              1250 },
     { LANG_PORTUGUESE,     SUBLANG_NEUTRAL,              1252 },
     { LANG_PUNJABI,        SUBLANG_NEUTRAL,              0    },
     { LANG_ROMANIAN,       SUBLANG_NEUTRAL,              1250 },
     { LANG_RUSSIAN,        SUBLANG_NEUTRAL,              1251 },
     { LANG_SANSKRIT,       SUBLANG_NEUTRAL,              0    },
     { LANG_SERBIAN,        SUBLANG_NEUTRAL,              1250 },
     { LANG_SERBIAN,        SUBLANG_SERBIAN_CYRILLIC,     1251 },
     { LANG_SLOVAK,         SUBLANG_NEUTRAL,              1250 },
     { LANG_SLOVENIAN,      SUBLANG_NEUTRAL,              1250 },
     { LANG_SPANISH,        SUBLANG_NEUTRAL,              1252 },
     { LANG_SWAHILI,        SUBLANG_NEUTRAL,              1252 },
     { LANG_SWEDISH,        SUBLANG_NEUTRAL,              1252 },
     { LANG_SYRIAC,         SUBLANG_NEUTRAL,              0    },
     { LANG_TAMIL,          SUBLANG_NEUTRAL,              0    },
     { LANG_TATAR,          SUBLANG_NEUTRAL,              1251 },
     { LANG_TELUGU,         SUBLANG_NEUTRAL,              0    },
     { LANG_THAI,           SUBLANG_NEUTRAL,              874  },
     { LANG_TURKISH,        SUBLANG_NEUTRAL,              1254 },
     { LANG_UKRAINIAN,      SUBLANG_NEUTRAL,              1251 },
     { LANG_URDU,           SUBLANG_NEUTRAL,              1256 },
     { LANG_UZBEK,          SUBLANG_NEUTRAL,              1254 },
     { LANG_UZBEK,          SUBLANG_UZBEK_CYRILLIC,       1251 },
     { LANG_VIETNAMESE,     SUBLANG_NEUTRAL,              1258 }
 #ifdef LANG_WALON
     , { LANG_WALON,          SUBLANG_NEUTRAL,              1252 }
 #endif /* LANG_WALON */
 #ifdef LANG_WELSH
     , { LANG_WELSH,          SUBLANG_NEUTRAL,              1252 }
 #endif /* LANG_WELSH */
 };

 int get_language_codepage( unsigned short lang, unsigned short sublang )
 {
     unsigned int i;
     int cp = -1, defcp = -1;

     for (i = 0; i < sizeof(lang2cps)/sizeof(lang2cps[0]); i++)
     {
         if (lang2cps[i].lang != lang) continue;
         if (lang2cps[i].sublang == sublang)
         {
             cp = lang2cps[i].cp;
             break;
         }
         if (lang2cps[i].sublang == SUBLANG_NEUTRAL) defcp = lang2cps[i].cp;
     }

     if (cp == -1) cp = defcp;
     assert( cp <= 0 || wine_cp_get_table(cp) );
     return cp;
 }
	/*
	* Utility routines
	*
	* Copyright 1998 Bertho A. Stultiens
	*
	* This library 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.
	*
	* This library 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
	* Lesser General Public License for more details.
	*
	* You should have received a copy of the GNU Lesser General Public
	* License along with this library; if not, write to the Free Software
	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
	*/

	#include "config.h"
	#include "wine/port.h"

	#include <assert.h>
	#include <stdio.h>
	#include <stdlib.h>
	#include <stdarg.h>
	#include <string.h>
	#include <assert.h>
	#include <ctype.h>

	#include "wine/unicode.h"
	#include "wrc.h"
	#include "utils.h"
	#include "parser.h"

	/* #define WANT_NEAR_INDICATION */

	#ifdef WANT_NEAR_INDICATION
	void make_print(char *str)
	{
	while(*str)
	{
	if(!isprint(*str))
	*str = ' ';
	str++;
	}
	}
	#endif

	static void generic_msg(const char s, const char t, const char *n, va_list ap)
	{
	fprintf(stderr, "%s:%d:%d: %s: ", input_name ? input_name : "stdin", line_number, char_number, t);
	vfprintf(stderr, s, ap);
	#ifdef WANT_NEAR_INDICATION
	{
	char *cpy;
	if(n)
	{
	cpy = xstrdup(n);
	make_print(cpy);
	fprintf(stderr, " near '%s'", cpy);
	free(cpy);
	}
	}
	#endif
	fprintf(stderr, "\n");
	}


	int parser_error(const char *s, ...)
	{
	va_list ap;
	va_start(ap, s);
	generic_msg(s, "Error", parser_text, ap);
	va_end(ap);
	exit(1);
	return 1;
	}

	int parser_warning(const char *s, ...)
	{
	va_list ap;
	va_start(ap, s);
	generic_msg(s, "Warning", parser_text, ap);
	va_end(ap);
	return 0;
	}

	void internal_error(const char file, int line, const char s, ...)
	{
	va_list ap;
	va_start(ap, s);
	fprintf(stderr, "Internal error (please report) %s %d: ", file, line);
	vfprintf(stderr, s, ap);
	fprintf(stderr, "\n");
	va_end(ap);
	exit(3);
	}

	void error(const char *s, ...)
	{
	va_list ap;
	va_start(ap, s);
	fprintf(stderr, "Error: ");
	vfprintf(stderr, s, ap);
	fprintf(stderr, "\n");
	va_end(ap);
	exit(2);
	}

	void warning(const char *s, ...)
	{
	va_list ap;
	va_start(ap, s);
	fprintf(stderr, "Warning: ");
	vfprintf(stderr, s, ap);
	fprintf(stderr, "\n");
	va_end(ap);
	}

	void chat(const char *s, ...)
	{
	if(debuglevel & DEBUGLEVEL_CHAT)
	{
	va_list ap;
	va_start(ap, s);
	fprintf(stderr, "FYI: ");
	vfprintf(stderr, s, ap);
	fprintf(stderr, "\n");
	va_end(ap);
	}
	}

	char dup_basename(const char name, const char *ext)
	{
	int namelen;
	int extlen = strlen(ext);
	char *base;
	char *slash;

	if(!name)
	name = "wrc.tab";

	slash = strrchr(name, '/');
	if (slash)
	name = slash + 1;

	namelen = strlen(name);

	/* +4 for later extension and +1 for '\0' */
	base = xmalloc(namelen +4 +1);
	strcpy(base, name);
	if(!strcasecmp(name + namelen-extlen, ext))
	{
	base[namelen - extlen] = '\0';
	}
	return base;
	}

	void *xmalloc(size_t size)
	{
	void *res;

	assert(size > 0);
	res = malloc(size);
	if(res == NULL)
	{
	error("Virtual memory exhausted.\n");
	}
	memset(res, 0x55, size);
	return res;
	}


	void xrealloc(void p, size_t size)
	{
	void *res;

	assert(size > 0);
	res = realloc(p, size);
	if(res == NULL)
	{
	error("Virtual memory exhausted.\n");
	}
	return res;
	}

	char xstrdup(const char str)
	{
	char *s;

	assert(str != NULL);
	s = xmalloc(strlen(str)+1);
	return strcpy(s, str);
	}


	/*
	*****************************************************************************
	* Function : compare_name_id
	* Syntax : int compare_name_id(const name_id_t n1, const name_id_t n2)
	* Input :
	* Output :
	* Description :
	* Remarks :
	*****************************************************************************
	*/
	int compare_name_id(const name_id_t n1, const name_id_t n2)
	{
	if(n1->type == name_ord && n2->type == name_ord)
	{
	return n1->name.i_name - n2->name.i_name;
	}
	else if(n1->type == name_str && n2->type == name_str)
	{
	if(n1->name.s_name->type == str_char
	&& n2->name.s_name->type == str_char)
	{
	return strcasecmp(n1->name.s_name->str.cstr, n2->name.s_name->str.cstr);
	}
	else if(n1->name.s_name->type == str_unicode
	&& n2->name.s_name->type == str_unicode)
	{
	return strcmpiW(n1->name.s_name->str.wstr, n2->name.s_name->str.wstr);
	}
	else
	{
	internal_error(__FILE__, __LINE__, "Can't yet compare strings of mixed type");
	}
	}
	else if(n1->type == name_ord && n2->type == name_str)
	return 1;
	else if(n1->type == name_str && n2->type == name_ord)
	return -1;
	else
	internal_error(__FILE__, __LINE__, "Comparing name-ids with unknown types (%d, %d)",
	n1->type, n2->type);

	return 0; /* Keep the compiler happy */
	}

	string_t convert_string(const string_t str, enum str_e type, int codepage)
	{
	const union cptable *cptable = codepage ? wine_cp_get_table( codepage ) : NULL;
	string_t ret = xmalloc(sizeof(ret));

	if (!cptable && str->type != type)
	error( "Current language is Unicode only, cannot convert strings" );

	if((str->type == str_char) && (type == str_unicode))
	{
	ret->type = str_unicode;
	ret->size = wine_cp_mbstowcs( cptable, 0, str->str.cstr, str->size, NULL, 0 );
	ret->str.wstr = xmalloc( (ret->size+1) * sizeof(WCHAR) );
	wine_cp_mbstowcs( cptable, 0, str->str.cstr, str->size, ret->str.wstr, ret->size );
	ret->str.wstr[ret->size] = 0;
	}
	else if((str->type == str_unicode) && (type == str_char))
	{
	ret->type = str_char;
	ret->size = wine_cp_wcstombs( cptable, 0, str->str.wstr, str->size,
	NULL, 0, NULL, NULL );
	ret->str.cstr = xmalloc( ret->size + 1 );
	wine_cp_wcstombs( cptable, 0, str->str.wstr, str->size, ret->str.cstr, ret->size,
	NULL, NULL );
	ret->str.cstr[ret->size] = 0;
	}
	else if(str->type == str_unicode)
	{
	ret->type = str_unicode;
	ret->size = str->size;
	ret->str.wstr = xmalloc(sizeof(WCHAR)*(ret->size+1));
	memcpy( ret->str.wstr, str->str.wstr, ret->size * sizeof(WCHAR) );
	ret->str.wstr[ret->size] = 0;
	}
	else /* str->type == str_char */
	{
	ret->type = str_char;
	ret->size = str->size;
	ret->str.cstr = xmalloc( ret->size + 1 );
	memcpy( ret->str.cstr, str->str.cstr, ret->size );
	ret->str.cstr[ret->size] = 0;
	}
	return ret;
	}


	void free_string(string_t *str)
	{
	if (str->type == str_unicode) free( str->str.wstr );
	else free( str->str.cstr );
	free( str );
	}


	int check_unicode_conversion( const string_t str_a, const string_t str_w, int codepage )
	{
	int ok;
	string_t *teststr = convert_string( str_w, str_char, codepage );

	ok = (teststr->size == str_a->size && !memcmp( teststr->str.cstr, str_a->str.cstr, str_a->size ));

	if (!ok)
	{
	int i;

	fprintf( stderr, "Source: %s", str_a->str.cstr );
	for (i = 0; i < str_a->size; i++)
	fprintf( stderr, " %02x", (unsigned char)str_a->str.cstr[i] );
	fprintf( stderr, "\nUnicode: " );
	for (i = 0; i < str_w->size; i++)
	fprintf( stderr, " %04x", str_w->str.wstr[i] );
	fprintf( stderr, "\nBack: %s", teststr->str.cstr );
	for (i = 0; i < teststr->size; i++)
	fprintf( stderr, " %02x", (unsigned char)teststr->str.cstr[i] );
	fprintf( stderr, "\n" );
	}
	free_string( teststr );
	return ok;
	}


	struct lang2cp
	{
	unsigned short lang;
	unsigned short sublang;
	unsigned int cp;
	} lang2cp_t;

	/* language to codepage conversion table */
	/* specific sublanguages need only be specified if their codepage */
	/* differs from the default (SUBLANG_NEUTRAL) */
	static const struct lang2cp lang2cps[] =
	{
	{ LANG_AFRIKAANS, SUBLANG_NEUTRAL, 1252 },
	{ LANG_ALBANIAN, SUBLANG_NEUTRAL, 1250 },
	{ LANG_ARABIC, SUBLANG_NEUTRAL, 1256 },
	{ LANG_ARMENIAN, SUBLANG_NEUTRAL, 0 },
	{ LANG_AZERI, SUBLANG_NEUTRAL, 1254 },
	{ LANG_AZERI, SUBLANG_AZERI_CYRILLIC, 1251 },
	{ LANG_BASQUE, SUBLANG_NEUTRAL, 1252 },
	{ LANG_BELARUSIAN, SUBLANG_NEUTRAL, 1251 },
	#ifdef LANG_BRETON
	{ LANG_BRETON, SUBLANG_NEUTRAL, 1252 },
	#endif /* LANG_BRETON */
	{ LANG_BULGARIAN, SUBLANG_NEUTRAL, 1251 },
	{ LANG_CATALAN, SUBLANG_NEUTRAL, 1252 },
	{ LANG_CHINESE, SUBLANG_NEUTRAL, 950 },
	{ LANG_CHINESE, SUBLANG_CHINESE_SINGAPORE, 936 },
	{ LANG_CHINESE, SUBLANG_CHINESE_SIMPLIFIED, 936 },
	#ifdef LANG_CORNISH
	{ LANG_CORNISH, SUBLANG_NEUTRAL, 1252 },
	#endif /* LANG_CORNISH */
	{ LANG_CROATIAN, SUBLANG_NEUTRAL, 1250 },
	{ LANG_CZECH, SUBLANG_NEUTRAL, 1250 },
	{ LANG_DANISH, SUBLANG_NEUTRAL, 1252 },
	{ LANG_DIVEHI, SUBLANG_NEUTRAL, 0 },
	{ LANG_DUTCH, SUBLANG_NEUTRAL, 1252 },
	{ LANG_ENGLISH, SUBLANG_NEUTRAL, 1252 },
	#ifdef LANG_ESPERANTO
	{ LANG_ESPERANTO, SUBLANG_NEUTRAL, 1252 },
	#endif /* LANG_ESPERANTO */
	{ LANG_ESTONIAN, SUBLANG_NEUTRAL, 1257 },
	{ LANG_FAEROESE, SUBLANG_NEUTRAL, 1252 },
	{ LANG_FARSI, SUBLANG_NEUTRAL, 1256 },
	{ LANG_FINNISH, SUBLANG_NEUTRAL, 1252 },
	{ LANG_FRENCH, SUBLANG_NEUTRAL, 1252 },
	#ifdef LANG_GAELIC
	{ LANG_GAELIC, SUBLANG_NEUTRAL, 1252 },
	#endif /* LANG_GAELIC */
	{ LANG_GALICIAN, SUBLANG_NEUTRAL, 1252 },
	{ LANG_GEORGIAN, SUBLANG_NEUTRAL, 0 },
	{ LANG_GERMAN, SUBLANG_NEUTRAL, 1252 },
	{ LANG_GREEK, SUBLANG_NEUTRAL, 1253 },
	{ LANG_GUJARATI, SUBLANG_NEUTRAL, 0 },
	{ LANG_HEBREW, SUBLANG_NEUTRAL, 1255 },
	{ LANG_HINDI, SUBLANG_NEUTRAL, 0 },
	{ LANG_HUNGARIAN, SUBLANG_NEUTRAL, 1250 },
	{ LANG_ICELANDIC, SUBLANG_NEUTRAL, 1252 },
	{ LANG_INDONESIAN, SUBLANG_NEUTRAL, 1252 },
	{ LANG_ITALIAN, SUBLANG_NEUTRAL, 1252 },
	{ LANG_JAPANESE, SUBLANG_NEUTRAL, 932 },
	{ LANG_KANNADA, SUBLANG_NEUTRAL, 0 },
	{ LANG_KAZAK, SUBLANG_NEUTRAL, 1251 },
	{ LANG_KONKANI, SUBLANG_NEUTRAL, 0 },
	{ LANG_KOREAN, SUBLANG_NEUTRAL, 949 },
	{ LANG_KYRGYZ, SUBLANG_NEUTRAL, 1251 },
	{ LANG_LATVIAN, SUBLANG_NEUTRAL, 1257 },
	{ LANG_LITHUANIAN, SUBLANG_NEUTRAL, 1257 },
	{ LANG_MACEDONIAN, SUBLANG_NEUTRAL, 1251 },
	{ LANG_MALAY, SUBLANG_NEUTRAL, 1252 },
	{ LANG_MARATHI, SUBLANG_NEUTRAL, 0 },
	{ LANG_MONGOLIAN, SUBLANG_NEUTRAL, 1251 },
	{ LANG_NEUTRAL, SUBLANG_NEUTRAL, 1252 },
	{ LANG_NORWEGIAN, SUBLANG_NEUTRAL, 1252 },
	{ LANG_POLISH, SUBLANG_NEUTRAL, 1250 },
	{ LANG_PORTUGUESE, SUBLANG_NEUTRAL, 1252 },
	{ LANG_PUNJABI, SUBLANG_NEUTRAL, 0 },
	{ LANG_ROMANIAN, SUBLANG_NEUTRAL, 1250 },
	{ LANG_RUSSIAN, SUBLANG_NEUTRAL, 1251 },
	{ LANG_SANSKRIT, SUBLANG_NEUTRAL, 0 },
	{ LANG_SERBIAN, SUBLANG_NEUTRAL, 1250 },
	{ LANG_SERBIAN, SUBLANG_SERBIAN_CYRILLIC, 1251 },
	{ LANG_SLOVAK, SUBLANG_NEUTRAL, 1250 },
	{ LANG_SLOVENIAN, SUBLANG_NEUTRAL, 1250 },
	{ LANG_SPANISH, SUBLANG_NEUTRAL, 1252 },
	{ LANG_SWAHILI, SUBLANG_NEUTRAL, 1252 },
	{ LANG_SWEDISH, SUBLANG_NEUTRAL, 1252 },
	{ LANG_SYRIAC, SUBLANG_NEUTRAL, 0 },
	{ LANG_TAMIL, SUBLANG_NEUTRAL, 0 },
	{ LANG_TATAR, SUBLANG_NEUTRAL, 1251 },
	{ LANG_TELUGU, SUBLANG_NEUTRAL, 0 },
	{ LANG_THAI, SUBLANG_NEUTRAL, 874 },
	{ LANG_TURKISH, SUBLANG_NEUTRAL, 1254 },
	{ LANG_UKRAINIAN, SUBLANG_NEUTRAL, 1251 },
	{ LANG_URDU, SUBLANG_NEUTRAL, 1256 },
	{ LANG_UZBEK, SUBLANG_NEUTRAL, 1254 },
	{ LANG_UZBEK, SUBLANG_UZBEK_CYRILLIC, 1251 },
	{ LANG_VIETNAMESE, SUBLANG_NEUTRAL, 1258 }
	#ifdef LANG_WALON
	, { LANG_WALON, SUBLANG_NEUTRAL, 1252 }
	#endif /* LANG_WALON */
	#ifdef LANG_WELSH
	, { LANG_WELSH, SUBLANG_NEUTRAL, 1252 }
	#endif /* LANG_WELSH */
	};

	int get_language_codepage( unsigned short lang, unsigned short sublang )
	{
	unsigned int i;
	int cp = -1, defcp = -1;

	for (i = 0; i < sizeof(lang2cps)/sizeof(lang2cps[0]); i++)
	{
	if (lang2cps[i].lang != lang) continue;
	if (lang2cps[i].sublang == sublang)
	{
	cp = lang2cps[i].cp;
	break;
	}
	if (lang2cps[i].sublang == SUBLANG_NEUTRAL) defcp = lang2cps[i].cp;
	}

	if (cp == -1) cp = defcp;
	assert( cp <= 0 \|\| wine_cp_get_table(cp) );
	return cp;
	}