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