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wine/memory/codepage.c

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/*
* Code page functions
*
* Copyright 2000 Alexandre Julliard
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "winbase.h"
#include "winerror.h"
#include "winnls.h"
#include "wine/unicode.h"
#include "thread.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(string);
/* current code pages */
static const union cptable *ansi_cptable;
static const union cptable *oem_cptable;
static const union cptable *mac_cptable;
static LCID default_lcid = MAKELCID( MAKELANGID(LANG_ENGLISH,SUBLANG_DEFAULT), SORT_DEFAULT );
/* setup default codepage info before we can get at the locale stuff */
static void init_codepages(void)
{
ansi_cptable = cp_get_table( 1252 );
oem_cptable = cp_get_table( 437 );
mac_cptable = cp_get_table( 10000 );
assert( ansi_cptable );
assert( oem_cptable );
assert( mac_cptable );
}
/* find the table for a given codepage, handling CP_ACP etc. pseudo-codepages */
static const union cptable *get_codepage_table( unsigned int codepage )
{
const union cptable *ret = NULL;
if (!ansi_cptable) init_codepages();
switch(codepage)
{
case CP_ACP:
return ansi_cptable;
case CP_OEMCP:
return oem_cptable;
case CP_MACCP:
return mac_cptable;
case CP_UTF7:
case CP_UTF8:
break;
case CP_THREAD_ACP:
if (!(codepage = NtCurrentTeb()->code_page)) return ansi_cptable;
/* fall through */
default:
if (codepage == ansi_cptable->info.codepage) return ansi_cptable;
if (codepage == oem_cptable->info.codepage) return oem_cptable;
if (codepage == mac_cptable->info.codepage) return mac_cptable;
ret = cp_get_table( codepage );
break;
}
return ret;
}
/* initialize default code pages from locale info */
/* FIXME: should be done in init_codepages, but it can't right now */
/* since it needs KERNEL32 to be loaded for the locale info. */
void CODEPAGE_Init( UINT ansi, UINT oem, UINT mac, LCID lcid )
{
extern void __wine_init_codepages( const union cptable *ansi, const union cptable *oem );
const union cptable *table;
default_lcid = lcid;
if (!ansi_cptable) init_codepages(); /* just in case */
if ((table = cp_get_table( ansi ))) ansi_cptable = table;
if ((table = cp_get_table( oem ))) oem_cptable = table;
if ((table = cp_get_table( mac ))) mac_cptable = table;
__wine_init_codepages( ansi_cptable, oem_cptable );
TRACE( "ansi=%03d oem=%03d mac=%03d\n", ansi_cptable->info.codepage,
oem_cptable->info.codepage, mac_cptable->info.codepage );
}
/******************************************************************************
* GetACP (KERNEL32.@)
*
* RETURNS
* Current ANSI code-page identifier, default if no current defined
*/
UINT WINAPI GetACP(void)
{
if (!ansi_cptable) return 1252;
return ansi_cptable->info.codepage;
}
/***********************************************************************
* GetOEMCP (KERNEL32.@)
*/
UINT WINAPI GetOEMCP(void)
{
if (!oem_cptable) return 437;
return oem_cptable->info.codepage;
}
/***********************************************************************
* IsValidCodePage (KERNEL32.@)
*/
BOOL WINAPI IsValidCodePage( UINT codepage )
{
switch(codepage) {
case CP_SYMBOL:
return FALSE;
case CP_UTF7:
case CP_UTF8:
return TRUE;
default:
return cp_get_table( codepage ) != NULL;
}
}
/***********************************************************************
* GetUserDefaultLangID (KERNEL32.@)
*/
LANGID WINAPI GetUserDefaultLangID(void)
{
return LANGIDFROMLCID(default_lcid);
}
/***********************************************************************
* GetSystemDefaultLangID (KERNEL32.@)
*/
LANGID WINAPI GetSystemDefaultLangID(void)
{
return GetUserDefaultLangID();
}
/***********************************************************************
* GetUserDefaultLCID (KERNEL32.@)
*/
LCID WINAPI GetUserDefaultLCID(void)
{
return default_lcid;
}
/***********************************************************************
* GetSystemDefaultLCID (KERNEL32.@)
*/
LCID WINAPI GetSystemDefaultLCID(void)
{
return GetUserDefaultLCID();
}
/***********************************************************************
* GetUserDefaultUILanguage (KERNEL32.@)
*/
LANGID WINAPI GetUserDefaultUILanguage(void)
{
return GetUserDefaultLangID();
}
/***********************************************************************
* GetSystemDefaultUILanguage (KERNEL32.@)
*/
LANGID WINAPI GetSystemDefaultUILanguage(void)
{
return GetSystemDefaultLangID();
}
/***********************************************************************
* IsDBCSLeadByteEx (KERNEL32.@)
*/
BOOL WINAPI IsDBCSLeadByteEx( UINT codepage, BYTE testchar )
{
const union cptable *table = get_codepage_table( codepage );
return table && is_dbcs_leadbyte( table, testchar );
}
/***********************************************************************
* IsDBCSLeadByte (KERNEL32.@)
* IsDBCSLeadByte (KERNEL.207)
*/
BOOL WINAPI IsDBCSLeadByte( BYTE testchar )
{
if (!ansi_cptable) return FALSE;
return is_dbcs_leadbyte( ansi_cptable, testchar );
}
/***********************************************************************
* GetCPInfo (KERNEL32.@)
*/
BOOL WINAPI GetCPInfo( UINT codepage, LPCPINFO cpinfo )
{
const union cptable *table = get_codepage_table( codepage );
if (!table)
{
SetLastError( ERROR_INVALID_PARAMETER );
return FALSE;
}
if (table->info.def_char & 0xff00)
{
cpinfo->DefaultChar[0] = table->info.def_char & 0xff00;
cpinfo->DefaultChar[1] = table->info.def_char & 0x00ff;
}
else
{
cpinfo->DefaultChar[0] = table->info.def_char & 0xff;
cpinfo->DefaultChar[1] = 0;
}
if ((cpinfo->MaxCharSize = table->info.char_size) == 2)
memcpy( cpinfo->LeadByte, table->dbcs.lead_bytes, sizeof(cpinfo->LeadByte) );
else
cpinfo->LeadByte[0] = cpinfo->LeadByte[1] = 0;
return TRUE;
}
/***********************************************************************
* EnumSystemCodePagesA (KERNEL32.@)
*/
BOOL WINAPI EnumSystemCodePagesA( CODEPAGE_ENUMPROCA lpfnCodePageEnum, DWORD flags )
{
const union cptable *table;
char buffer[10];
int index = 0;
for (;;)
{
if (!(table = cp_enum_table( index++ ))) break;
sprintf( buffer, "%d", table->info.codepage );
if (!lpfnCodePageEnum( buffer )) break;
}
return TRUE;
}
/***********************************************************************
* EnumSystemCodePagesW (KERNEL32.@)
*/
BOOL WINAPI EnumSystemCodePagesW( CODEPAGE_ENUMPROCW lpfnCodePageEnum, DWORD flags )
{
const union cptable *table;
WCHAR buffer[10], *p;
int page, index = 0;
for (;;)
{
if (!(table = cp_enum_table( index++ ))) break;
p = buffer + sizeof(buffer)/sizeof(WCHAR);
*--p = 0;
page = table->info.codepage;
do
{
*--p = '0' + (page % 10);
page /= 10;
} while( page );
if (!lpfnCodePageEnum( p )) break;
}
return TRUE;
}
/***********************************************************************
* MultiByteToWideChar (KERNEL32.@)
*
* PARAMS
* page [in] Codepage character set to convert from
* flags [in] Character mapping flags
* src [in] Source string buffer
* srclen [in] Length of source string buffer
* dst [in] Destination buffer
* dstlen [in] Length of destination buffer
*
* NOTES
* The returned length includes the null terminator character.
*
* RETURNS
* Success: If dstlen > 0, number of characters written to destination
* buffer. If dstlen == 0, number of characters needed to do
* conversion.
* Failure: 0. Occurs if not enough space is available.
*
* ERRORS
* ERROR_INSUFFICIENT_BUFFER
* ERROR_INVALID_PARAMETER
* ERROR_NO_UNICODE_TRANSLATION
*
*/
INT WINAPI MultiByteToWideChar( UINT page, DWORD flags, LPCSTR src, INT srclen,
LPWSTR dst, INT dstlen )
{
const union cptable *table;
int ret;
if (!src || (!dst && dstlen))
{
SetLastError( ERROR_INVALID_PARAMETER );
return 0;
}
if (srclen < 0) srclen = strlen(src) + 1;
if (flags & MB_USEGLYPHCHARS) FIXME("MB_USEGLYPHCHARS not supported\n");
switch(page)
{
case CP_UTF7:
FIXME("UTF not supported\n");
SetLastError( ERROR_CALL_NOT_IMPLEMENTED );
return 0;
case CP_UTF8:
ret = utf8_mbstowcs( flags, src, srclen, dst, dstlen );
break;
default:
if (!(table = get_codepage_table( page )))
{
SetLastError( ERROR_INVALID_PARAMETER );
return 0;
}
ret = cp_mbstowcs( table, flags, src, srclen, dst, dstlen );
break;
}
if (ret < 0)
{
switch(ret)
{
case -1: SetLastError( ERROR_INSUFFICIENT_BUFFER ); break;
case -2: SetLastError( ERROR_NO_UNICODE_TRANSLATION ); break;
}
ret = 0;
}
return ret;
}
/***********************************************************************
* WideCharToMultiByte (KERNEL32.@)
*
* PARAMS
* page [in] Codepage character set to convert to
* flags [in] Character mapping flags
* src [in] Source string buffer
* srclen [in] Length of source string buffer
* dst [in] Destination buffer
* dstlen [in] Length of destination buffer
* defchar [in] Default character to use for conversion if no exact
* conversion can be made
* used [out] Set if default character was used in the conversion
*
* NOTES
* The returned length includes the null terminator character.
*
* RETURNS
* Success: If dstlen > 0, number of characters written to destination
* buffer. If dstlen == 0, number of characters needed to do
* conversion.
* Failure: 0. Occurs if not enough space is available.
*
* ERRORS
* ERROR_INSUFFICIENT_BUFFER
* ERROR_INVALID_PARAMETER
*/
INT WINAPI WideCharToMultiByte( UINT page, DWORD flags, LPCWSTR src, INT srclen,
LPSTR dst, INT dstlen, LPCSTR defchar, BOOL *used )
{
const union cptable *table;
int ret, used_tmp;
if (!src || (!dst && dstlen))
{
SetLastError( ERROR_INVALID_PARAMETER );
return 0;
}
if (srclen < 0) srclen = strlenW(src) + 1;
switch(page)
{
case CP_UTF7:
FIXME("UTF-7 not supported\n");
SetLastError( ERROR_CALL_NOT_IMPLEMENTED );
return 0;
case CP_UTF8:
ret = utf8_wcstombs( src, srclen, dst, dstlen );
break;
default:
if (!(table = get_codepage_table( page )))
{
SetLastError( ERROR_INVALID_PARAMETER );
return 0;
}
ret = cp_wcstombs( table, flags, src, srclen, dst, dstlen,
defchar, used ? &used_tmp : NULL );
if (used) *used = used_tmp;
break;
}
if (ret == -1)
{
SetLastError( ERROR_INSUFFICIENT_BUFFER );
ret = 0;
}
return ret;
}
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