156 lines
4.1 KiB
C++
156 lines
4.1 KiB
C++
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/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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Copyright (c) 1995-1999 Microsoft Corporation
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Module Name:
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mbcs.cxx
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Abstract:
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MBCS support related code used by the lexer.
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Notes:
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History:
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RyszardK Sep-1996 Created.
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----------------------------------------------------------------------------*/
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#pragma warning ( disable : 4514 )
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#include <windows.h>
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#include <stdlib.h>
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#include "mbcs.hxx"
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CharacterSet CurrentCharSet;
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int
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CharacterSet::DBCSDefaultToCaseSensitive()
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{
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// these languages do not distinguish cases
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return (
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PRIMARYLANGID(LANGIDFROMLCID(CurrentLCID)) == LANG_JAPANESE ||
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PRIMARYLANGID(LANGIDFROMLCID(CurrentLCID)) == LANG_CHINESE ||
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PRIMARYLANGID(LANGIDFROMLCID(CurrentLCID)) == LANG_KOREAN
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);
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}
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CharacterSet::CharacterSet()
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{
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memset( DbcsLeadByteTable, 0, 128 );
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SetDbcsLeadByteTable( GetSystemDefaultLCID() );
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}
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CharacterSet::DBCS_ERRORS
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CharacterSet::SetDbcsLeadByteTable(
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unsigned long ulLocale )
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{
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DBCS_ERRORS dbcsRet = dbcs_Failure;
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if (CurrentLCID != ulLocale)
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{
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dbcsRet = dbcs_Success;
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char szCodePage[6];
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if ( GetLocaleInfo( ulLocale,
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LOCALE_NOUSEROVERRIDE | LOCALE_IDEFAULTANSICODEPAGE,
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szCodePage,
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sizeof(szCodePage) ) )
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{
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unsigned int CodePage = atoi( szCodePage );
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for (int i = 128; i < 256; i++ )
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{
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DbcsLeadByteTable[i] = (char) IsDBCSLeadByteEx( CodePage,
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(char) i );
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}
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}
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else
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{
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unsigned char i = 0;
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switch (PRIMARYLANGID(ulLocale))
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{
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case LANG_CHINESE:
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if (SUBLANGID(ulLocale) == SUBLANG_CHINESE_SIMPLIFIED)
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{
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for (i=0xA1; i <= 0xFE; i++)
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{
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DbcsLeadByteTable[i] = 1;
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}
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}
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break;
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case LANG_KOREAN:
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for (i = 0x81; i <= 0xFE; i++)
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{
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DbcsLeadByteTable[i] = 1;
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}
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break;
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case LANG_JAPANESE:
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for (i = 0x81; i <= 0x9F; i++)
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{
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DbcsLeadByteTable[i] = 1;
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}
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for (i = 0xE0; i <= 0xFC; i++)
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{
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DbcsLeadByteTable[i] = 1;
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}
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break;
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default:
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dbcsRet = dbcs_BadLCID;
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break;
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}
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}
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}
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else
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{
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dbcsRet = dbcs_Success;
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}
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if (CurrentLCID != (unsigned long)-1 &&
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CurrentLCID != ulLocale &&
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ulLocale != 0)
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{
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dbcsRet = dbcs_LCIDConflict;
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}
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CurrentLCID = ulLocale;
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return dbcsRet;
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}
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int
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CharacterSet::CompareDBCSString(
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char* szLHStr,
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char* szRHStr,
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unsigned long ulFlags
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)
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{
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int nRet = CompareStringA( CurrentLCID,
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NORM_IGNOREWIDTH | NORM_IGNOREKANATYPE | ulFlags,
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szLHStr,
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-1,
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szRHStr,
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-1) - 2;
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if (nRet == -2)
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{
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nRet = strcmp(szLHStr, szRHStr);
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}
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return nRet;
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}
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unsigned int
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GetConsoleMaxLineCount()
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{
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CONSOLE_SCREEN_BUFFER_INFO ConsoleInfo;
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HANDLE hOutput = GetStdHandle( STD_OUTPUT_HANDLE );
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ZeroMemory( &ConsoleInfo, sizeof( ConsoleInfo ) );
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BOOL fResult = GetConsoleScreenBufferInfo( hOutput, &ConsoleInfo );
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if ( fResult )
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{
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return ConsoleInfo.srWindow.Bottom - 1;
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}
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else
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{
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return 23;
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}
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}
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