109 lines
2.6 KiB
C++
109 lines
2.6 KiB
C++
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#include <algorithm>
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#include <string>
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#include <cstring>
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#include <cctype>
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#include <locale.h>
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#include "conversion.hxx"
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#ifdef _WIN32
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#define strdup _strdup
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#endif
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using namespace std;
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namespace replxx {
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namespace locale {
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void to_lower( std::string& s_ ) {
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transform( s_.begin(), s_.end(), s_.begin(), static_cast<int(*)(int)>( &tolower ) );
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}
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bool is_8bit_encoding( void ) {
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bool is8BitEncoding( false );
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string origLC( setlocale( LC_CTYPE, nullptr ) );
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string lc( origLC );
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to_lower( lc );
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if ( lc == "c" ) {
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setlocale( LC_CTYPE, "" );
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}
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lc = setlocale( LC_CTYPE, nullptr );
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setlocale( LC_CTYPE, origLC.c_str() );
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to_lower( lc );
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if ( lc.find( "8859" ) != std::string::npos ) {
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is8BitEncoding = true;
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}
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return ( is8BitEncoding );
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}
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bool is8BitEncoding( is_8bit_encoding() );
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}
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ConversionResult copyString8to32(char32_t* dst, int dstSize, int& dstCount, const char* src) {
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ConversionResult res = ConversionResult::conversionOK;
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if ( ! locale::is8BitEncoding ) {
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const UTF8* sourceStart = reinterpret_cast<const UTF8*>(src);
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const UTF8* sourceEnd = sourceStart + strlen(src);
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UTF32* targetStart = reinterpret_cast<UTF32*>(dst);
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UTF32* targetEnd = targetStart + dstSize;
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res = ConvertUTF8toUTF32(
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&sourceStart, sourceEnd, &targetStart, targetEnd, lenientConversion);
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if (res == conversionOK) {
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dstCount = static_cast<int>( targetStart - reinterpret_cast<UTF32*>( dst ) );
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if (dstCount < dstSize) {
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*targetStart = 0;
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}
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}
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} else {
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for ( dstCount = 0; ( dstCount < dstSize ) && src[dstCount]; ++ dstCount ) {
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dst[dstCount] = src[dstCount];
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}
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}
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return res;
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}
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ConversionResult copyString8to32(char32_t* dst, int dstSize, int& dstCount, const char8_t* src) {
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return copyString8to32(
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dst, dstSize, dstCount, reinterpret_cast<const char*>(src)
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);
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}
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int copyString32to8( char* dst, int dstSize, const char32_t* src, int srcSize ) {
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int resCount( 0 );
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if ( ! locale::is8BitEncoding ) {
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const UTF32* sourceStart = reinterpret_cast<const UTF32*>(src);
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const UTF32* sourceEnd = sourceStart + srcSize;
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UTF8* targetStart = reinterpret_cast<UTF8*>(dst);
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UTF8* targetEnd = targetStart + dstSize;
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ConversionResult res = ConvertUTF32toUTF8(
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&sourceStart, sourceEnd, &targetStart, targetEnd, lenientConversion
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);
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if ( res == conversionOK ) {
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resCount = static_cast<int>( targetStart - reinterpret_cast<UTF8*>( dst ) );
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if ( resCount < dstSize ) {
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*targetStart = 0;
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}
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}
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} else {
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int i( 0 );
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for ( i = 0; ( i < dstSize ) && ( i < srcSize ) && src[i]; ++ i ) {
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dst[i] = static_cast<char>( src[i] );
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}
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resCount = i;
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if ( i < dstSize ) {
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dst[i] = 0;
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}
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}
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return ( resCount );
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}
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}
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