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676 lines
17 KiB
C++
676 lines
17 KiB
C++
#include "drw_textcodec.h"
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#include <sstream>
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#include <iomanip>
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#include <algorithm>
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#include "../drw_base.h"
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#include "drw_cptables.h"
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#include "drw_cptable932.h"
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#include "drw_cptable936.h"
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#include "drw_cptable949.h"
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#include "drw_cptable950.h"
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DRW_TextCodec::DRW_TextCodec()
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{
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version = DRW::AC1021;
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conv = new DRW_Converter( nullptr, 0 );
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}
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DRW_TextCodec::~DRW_TextCodec()
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{
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delete conv;
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}
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void DRW_TextCodec::setVersion( int v, bool dxfFormat )
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{
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if ( v == DRW::AC1009 || v == DRW::AC1006 )
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{
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version = DRW::AC1009;
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cp = "ANSI_1252";
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setCodePage( &cp, dxfFormat );
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}
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else if ( v == DRW::AC1012 || v == DRW::AC1014
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|| v == DRW::AC1015 || v == DRW::AC1018 )
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{
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version = DRW::AC1015;
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// if (cp.empty()) { //codepage not set, initialize
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cp = "ANSI_1252";
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setCodePage( &cp, dxfFormat );
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// }
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}
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else
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{
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version = DRW::AC1021;
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if ( dxfFormat )
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cp = "UTF-8";//RLZ: can be UCS2 or UTF-16 16bits per char
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else
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cp = "UTF-16";//RLZ: can be UCS2 or UTF-16 16bits per char
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setCodePage( &cp, dxfFormat );
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}
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}
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void DRW_TextCodec::setVersion( std::string *v, bool dxfFormat )
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{
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std::string versionStr = *v;
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if ( versionStr == "AC1009" || versionStr == "AC1006" )
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{
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setVersion( DRW::AC1009, dxfFormat );
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}
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else if ( versionStr == "AC1012" || versionStr == "AC1014"
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|| versionStr == "AC1015" || versionStr == "AC1018" )
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{
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setVersion( DRW::AC1015, dxfFormat );
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}
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setVersion( DRW::AC1021, dxfFormat );
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}
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void DRW_TextCodec::setCodePage( std::string *c, bool dxfFormat )
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{
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cp = correctCodePage( *c );
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delete conv;
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if ( version == DRW::AC1009 || version == DRW::AC1015 )
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{
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if ( cp == "ANSI_874" )
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conv = new DRW_ConvTable( DRW_Table874, CPLENGTHCOMMON );
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else if ( cp == "ANSI_932" )
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conv = new DRW_Conv932Table( DRW_Table932, DRW_LeadTable932,
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DRW_DoubleTable932, CPLENGTH932 );
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else if ( cp == "ANSI_936" )
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conv = new DRW_ConvDBCSTable( DRW_Table936, DRW_LeadTable936,
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DRW_DoubleTable936, CPLENGTH936 );
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else if ( cp == "ANSI_949" )
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conv = new DRW_ConvDBCSTable( DRW_Table949, DRW_LeadTable949,
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DRW_DoubleTable949, CPLENGTH949 );
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else if ( cp == "ANSI_950" )
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conv = new DRW_ConvDBCSTable( DRW_Table950, DRW_LeadTable950,
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DRW_DoubleTable950, CPLENGTH950 );
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else if ( cp == "ANSI_1250" )
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conv = new DRW_ConvTable( DRW_Table1250, CPLENGTHCOMMON );
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else if ( cp == "ANSI_1251" )
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conv = new DRW_ConvTable( DRW_Table1251, CPLENGTHCOMMON );
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else if ( cp == "ANSI_1253" )
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conv = new DRW_ConvTable( DRW_Table1253, CPLENGTHCOMMON );
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else if ( cp == "ANSI_1254" )
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conv = new DRW_ConvTable( DRW_Table1254, CPLENGTHCOMMON );
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else if ( cp == "ANSI_1255" )
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conv = new DRW_ConvTable( DRW_Table1255, CPLENGTHCOMMON );
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else if ( cp == "ANSI_1256" )
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conv = new DRW_ConvTable( DRW_Table1256, CPLENGTHCOMMON );
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else if ( cp == "ANSI_1257" )
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conv = new DRW_ConvTable( DRW_Table1257, CPLENGTHCOMMON );
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else if ( cp == "ANSI_1258" )
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conv = new DRW_ConvTable( DRW_Table1258, CPLENGTHCOMMON );
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else if ( cp == "UTF-8" ) //DXF older than 2007 are write in win codepages
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{
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cp = "ANSI_1252";
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conv = new DRW_Converter( nullptr, 0 );
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}
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else
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conv = new DRW_ConvTable( DRW_Table1252, CPLENGTHCOMMON );
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}
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else
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{
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if ( dxfFormat )
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conv = new DRW_Converter( nullptr, 0 );//utf16 to utf8
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else
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conv = new DRW_ConvUTF16();//utf16 to utf8
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}
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}
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std::string DRW_TextCodec::toUtf8( std::string s )
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{
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return conv->toUtf8( &s );
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}
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std::string DRW_TextCodec::fromUtf8( std::string s )
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{
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return conv->fromUtf8( &s );
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}
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std::string DRW_Converter::toUtf8( std::string *s )
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{
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std::string result;
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int j = 0;
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unsigned int i = 0;
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for ( i = 0; i < s->length(); i++ )
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{
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unsigned char c = s->at( i );
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if ( c < 0x80 ) //ascii check for /U+????
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{
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if ( c == '\\' && i + 6 < s->length() && s->at( i + 1 ) == 'U' && s->at( i + 2 ) == '+' )
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{
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result += s->substr( j, i - j );
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result += encodeText( s->substr( i, 7 ) );
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i += 6;
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j = i + 1;
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}
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}
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else if ( c < 0xE0 ) //2 bits
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{
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i++;
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}
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else if ( c < 0xF0 ) //3 bits
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{
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i += 2;
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}
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else if ( c < 0xF8 ) //4 bits
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{
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i += 3;
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}
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}
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result += s->substr( j );
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return result;
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}
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std::string DRW_ConvTable::fromUtf8( std::string *s )
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{
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std::string result;
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bool notFound;
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int code;
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int j = 0;
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for ( unsigned int i = 0; i < s->length(); i++ )
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{
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unsigned char c = s->at( i );
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if ( c > 0x7F ) //need to decode
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{
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result += s->substr( j, i - j );
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std::string part1 = s->substr( i, 4 );
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int l;
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code = decodeNum( part1, &l );
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j = i + l;
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i = j - 1;
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notFound = true;
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for ( int k = 0; k < cpLength; k++ )
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{
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if ( table[k] == code )
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{
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result += CPOFFSET + k; //translate from table
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notFound = false;
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break;
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}
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}
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if ( notFound )
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result += decodeText( code );
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}
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}
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result += s->substr( j );
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return result;
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}
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std::string DRW_ConvTable::toUtf8( std::string *s )
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{
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std::string res;
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std::string::iterator it;
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for ( it = s->begin() ; it < s->end(); ++it )
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{
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unsigned char c = *it;
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if ( c < 0x80 )
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{
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//check for \U+ encoded text
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if ( c == '\\' )
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{
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if ( it + 6 < s->end() && *( it + 1 ) == 'U' && *( it + 2 ) == '+' )
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{
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res += encodeText( std::string( it, it + 7 ) );
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it += 6;
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}
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else
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{
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res += c; //no \U+ encoded text write
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}
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}
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else
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res += c; //c!='\' ascii char write
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}
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else //end c < 0x80
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{
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res += encodeNum( table[c - 0x80] ); //translate from table
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}
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} //end for
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return res;
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}
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std::string DRW_Converter::encodeText( std::string stmp )
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{
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int code;
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#if defined(__APPLE__)
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int Succeeded = sscanf( &( stmp.substr( 3, 4 )[0] ), "%x", &code );
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if ( !Succeeded || Succeeded == EOF )
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code = 0;
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#else
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std::istringstream sd( stmp.substr( 3, 4 ) );
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sd >> std::hex >> code;
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#endif
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return encodeNum( code );
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}
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std::string DRW_Converter::decodeText( int c )
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{
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std::string res = "\\U+";
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std::string num;
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#if defined(__APPLE__)
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std::string str( 16, '\0' );
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snprintf( &( str[0] ), 16, "%04X", c );
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num = str;
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#else
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std::stringstream ss;
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ss << std::uppercase << std::setfill( '0' ) << std::setw( 4 ) << std::hex << c;
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ss >> num;
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#endif
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res += num;
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return res;
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}
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std::string DRW_Converter::encodeNum( int c )
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{
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unsigned char ret[5];
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if ( c < 128 ) // 0-7F US-ASCII 7 bits
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{
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ret[0] = c;
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ret[1] = 0;
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}
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else if ( c < 0x800 ) //80-07FF 2 bytes
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{
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ret[0] = 0xC0 | ( c >> 6 );
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ret[1] = 0x80 | ( c & 0x3f );
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ret[2] = 0;
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}
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else if ( c < 0x10000 ) //800-FFFF 3 bytes
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{
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ret[0] = 0xe0 | ( c >> 12 );
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ret[1] = 0x80 | ( ( c >> 6 ) & 0x3f );
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ret[2] = 0x80 | ( c & 0x3f );
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ret[3] = 0;
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}
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else //10000-10FFFF 4 bytes
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{
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ret[0] = 0xf0 | ( c >> 18 );
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ret[1] = 0x80 | ( ( c >> 12 ) & 0x3f );
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ret[2] = 0x80 | ( ( c >> 6 ) & 0x3f );
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ret[3] = 0x80 | ( c & 0x3f );
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ret[4] = 0;
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}
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return std::string( ( char * )ret );
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}
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/** 's' is a string with at least 4 bytes length
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** returned 'b' is byte length of encoded char: 2,3 or 4
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**/
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int DRW_Converter::decodeNum( std::string s, int *b )
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{
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int code = 0;
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unsigned char c = s.at( 0 );
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if ( ( c & 0xE0 ) == 0xC0 ) //2 bytes
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{
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code = ( c & 0x1F ) << 6;
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code = ( s.at( 1 ) & 0x3F ) | code;
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*b = 2;
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}
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else if ( ( c & 0xF0 ) == 0xE0 ) //3 bytes
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{
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code = ( c & 0x0F ) << 12;
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code = ( ( s.at( 1 ) & 0x3F ) << 6 ) | code;
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code = ( s.at( 2 ) & 0x3F ) | code;
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*b = 3;
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}
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else if ( ( c & 0xF8 ) == 0xF0 ) //4 bytes
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{
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code = ( c & 0x07 ) << 18;
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code = ( ( s.at( 1 ) & 0x3F ) << 12 ) | code;
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code = ( ( s.at( 2 ) & 0x3F ) << 6 ) | code;
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code = ( s.at( 3 ) & 0x3F ) | code;
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*b = 4;
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}
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return code;
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}
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std::string DRW_ConvDBCSTable::fromUtf8( std::string *s )
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{
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std::string result;
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bool notFound;
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int code;
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int j = 0;
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for ( unsigned int i = 0; i < s->length(); i++ )
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{
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unsigned char c = s->at( i );
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if ( c > 0x7F ) //need to decode
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{
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result += s->substr( j, i - j );
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std::string part1 = s->substr( i, 4 );
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int l;
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code = decodeNum( part1, &l );
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j = i + l;
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i = j - 1;
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notFound = true;
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for ( int k = 0; k < cpLength; k++ )
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{
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if ( doubleTable[k][1] == code )
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{
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int data = doubleTable[k][0];
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char d[3];
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d[0] = data >> 8;
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d[1] = data & 0xFF;
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d[2] = '\0';
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result += d; //translate from table
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notFound = false;
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break;
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}
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}
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if ( notFound )
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result += decodeText( code );
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} //direct conversion
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}
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result += s->substr( j );
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return result;
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}
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std::string DRW_ConvDBCSTable::toUtf8( std::string *s )
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{
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std::string res;
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std::string::iterator it;
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for ( it = s->begin() ; it < s->end(); ++it )
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{
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bool notFound = true;
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unsigned char c = *it;
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if ( c < 0x80 )
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{
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notFound = false;
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//check for \U+ encoded text
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if ( c == '\\' )
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{
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if ( it + 6 < s->end() && *( it + 1 ) == 'U' && *( it + 2 ) == '+' )
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{
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res += encodeText( std::string( it, it + 7 ) );
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it += 6;
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}
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else
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{
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res += c; //no \U+ encoded text write
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}
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}
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else
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res += c; //c!='\' ascii char write
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}
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else if ( c == 0x80 ) //1 byte table
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{
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notFound = false;
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res += encodeNum( 0x20AC );//euro sign
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}
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else //2 bytes
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{
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++it;
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int code = ( c << 8 ) | ( unsigned char )( *it );
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int sta = leadTable[c - 0x81];
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int end = leadTable[c - 0x80];
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for ( int k = sta; k < end; k++ )
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{
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if ( doubleTable[k][0] == code )
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{
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res += encodeNum( doubleTable[k][1] ); //translate from table
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notFound = false;
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break;
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}
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}
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}
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//not found
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if ( notFound ) res += encodeNum( NOTFOUND936 );
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} //end for
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return res;
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}
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std::string DRW_Conv932Table::fromUtf8( std::string *s )
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{
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std::string result;
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bool notFound;
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int code;
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int j = 0;
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for ( unsigned int i = 0; i < s->length(); i++ )
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{
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unsigned char c = s->at( i );
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if ( c > 0x7F ) //need to decode
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{
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result += s->substr( j, i - j );
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std::string part1 = s->substr( i, 4 );
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int l;
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code = decodeNum( part1, &l );
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j = i + l;
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i = j - 1;
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notFound = true;
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// 1 byte table
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if ( code > 0xff60 && code < 0xFFA0 )
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{
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result += code - CPOFFSET932; //translate from table
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notFound = false;
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}
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if ( notFound && ( code < 0xF8 || ( code > 0x390 && code < 0x542 ) ||
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( code > 0x200F && code < 0x9FA1 ) || code > 0xF928 ) )
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{
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for ( int k = 0; k < cpLength; k++ )
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{
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if ( doubleTable[k][1] == code )
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{
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int data = doubleTable[k][0];
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char d[3];
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d[0] = data >> 8;
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d[1] = data & 0xFF;
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d[2] = '\0';
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result += d; //translate from table
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notFound = false;
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break;
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}
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}
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}
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if ( notFound )
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result += decodeText( code );
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} //direct conversion
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}
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result += s->substr( j );
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return result;
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}
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std::string DRW_Conv932Table::toUtf8( std::string *s )
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{
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std::string res;
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std::string::iterator it;
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for ( it = s->begin() ; it < s->end(); ++it )
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{
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bool notFound = true;
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unsigned char c = *it;
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if ( c < 0x80 )
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{
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notFound = false;
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//check for \U+ encoded text
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if ( c == '\\' )
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{
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if ( it + 6 < s->end() && *( it + 1 ) == 'U' && *( it + 2 ) == '+' )
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{
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res += encodeText( std::string( it, it + 7 ) );
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it += 6;
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}
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else
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{
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res += c; //no \U+ encoded text write
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}
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}
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else
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res += c; //c!='\' ascii char write
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}
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else if ( c > 0xA0 && c < 0xE0 ) //1 byte table
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{
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notFound = false;
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res += encodeNum( c + CPOFFSET932 ); //translate from table
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}
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else //2 bytes
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{
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++it;
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int code = ( c << 8 ) | ( unsigned char )( *it );
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int sta = 0;
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int end = 0;
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if ( c > 0x80 && c < 0xA0 )
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{
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sta = DRW_LeadTable932[c - 0x81];
|
|
end = DRW_LeadTable932[c - 0x80];
|
|
}
|
|
else if ( c > 0xDF && c < 0xFD )
|
|
{
|
|
sta = DRW_LeadTable932[c - 0xC1];
|
|
end = DRW_LeadTable932[c - 0xC0];
|
|
}
|
|
if ( end > 0 )
|
|
{
|
|
for ( int k = sta; k < end; k++ )
|
|
{
|
|
if ( DRW_DoubleTable932[k][0] == code )
|
|
{
|
|
res += encodeNum( DRW_DoubleTable932[k][1] ); //translate from table
|
|
notFound = false;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
//not found
|
|
if ( notFound ) res += encodeNum( NOTFOUND932 );
|
|
} //end for
|
|
|
|
return res;
|
|
}
|
|
|
|
std::string DRW_ConvUTF16::fromUtf8( std::string *s )
|
|
{
|
|
DRW_UNUSED( s );
|
|
//RLZ: to be written (only needed for write dwg 2007+)
|
|
return std::string();
|
|
}
|
|
|
|
std::string DRW_ConvUTF16::toUtf8( std::string *s ) //RLZ: pending to write
|
|
{
|
|
std::string res;
|
|
std::string::iterator it;
|
|
for ( it = s->begin() ; it < s->end(); ++it )
|
|
{
|
|
unsigned char c1 = *it;
|
|
unsigned char c2 = *( ++it );
|
|
duint16 ch = ( c2 << 8 ) | c1;
|
|
res += encodeNum( ch );
|
|
} //end for
|
|
|
|
return res;
|
|
}
|
|
|
|
std::string DRW_TextCodec::correctCodePage( const std::string &s )
|
|
{
|
|
//stringstream cause crash in OS/X, bug#3597944
|
|
std::string cp = s;
|
|
transform( cp.begin(), cp.end(), cp.begin(), toupper );
|
|
//Latin/Thai
|
|
if ( cp == "ANSI_874" || cp == "CP874" || cp == "ISO8859-11" || cp == "TIS-620" )
|
|
{
|
|
return "ANSI_874";
|
|
//Central Europe and Eastern Europe
|
|
}
|
|
else if ( cp == "ANSI_1250" || cp == "CP1250" || cp == "ISO8859-2" )
|
|
{
|
|
return "ANSI_1250";
|
|
//Cyrillic script
|
|
}
|
|
else if ( cp == "ANSI_1251" || cp == "CP1251" || cp == "ISO8859-5" || cp == "KOI8-R" ||
|
|
cp == "KOI8-U" || cp == "IBM 866" )
|
|
{
|
|
return "ANSI_1251";
|
|
//Western Europe
|
|
}
|
|
else if ( cp == "ANSI_1252" || cp == "CP1252" || cp == "LATIN1" || cp == "ISO-8859-1" ||
|
|
cp == "CP819" || cp == "CSISO" || cp == "IBM819" || cp == "ISO_8859-1" || cp == "APPLE ROMAN" ||
|
|
cp == "ISO8859-1" || cp == "ISO8859-15" || cp == "ISO-IR-100" || cp == "L1" || cp == "IBM 850" )
|
|
{
|
|
return "ANSI_1252";
|
|
//Greek
|
|
}
|
|
else if ( cp == "ANSI_1253" || cp == "CP1253" || cp == "iso8859-7" )
|
|
{
|
|
return "ANSI_1253";
|
|
//Turkish
|
|
}
|
|
else if ( cp == "ANSI_1254" || cp == "CP1254" || cp == "iso8859-9" || cp == "iso8859-3" )
|
|
{
|
|
return "ANSI_1254";
|
|
//Hebrew
|
|
}
|
|
else if ( cp == "ANSI_1255" || cp == "CP1255" || cp == "iso8859-8" )
|
|
{
|
|
return "ANSI_1255";
|
|
//Arabic
|
|
}
|
|
else if ( cp == "ANSI_1256" || cp == "CP1256" || cp == "ISO8859-6" )
|
|
{
|
|
return "ANSI_1256";
|
|
//Baltic
|
|
}
|
|
else if ( cp == "ANSI_1257" || cp == "CP1257" || cp == "ISO8859-4" || cp == "ISO8859-10" || cp == "ISO8859-13" )
|
|
{
|
|
return "ANSI_1257";
|
|
//Vietnamese
|
|
}
|
|
else if ( cp == "ANSI_1258" || cp == "CP1258" )
|
|
{
|
|
return "ANSI_1258";
|
|
|
|
//Japanese
|
|
}
|
|
else if ( cp == "ANSI_932" || cp == "SHIFT-JIS" || cp == "SHIFT_JIS" || cp == "CSSHIFTJIS" ||
|
|
cp == "CSWINDOWS31J" || cp == "MS_KANJI" || cp == "X-MS-CP932" || cp == "X-SJIS" ||
|
|
cp == "EUCJP" || cp == "EUC-JP" || cp == "CSEUCPKDFMTJAPANESE" || cp == "X-EUC" ||
|
|
cp == "X-EUC-JP" || cp == "JIS7" )
|
|
{
|
|
return "ANSI_932";
|
|
//Chinese PRC GBK (XGB) simplified
|
|
}
|
|
else if ( cp == "ANSI_936" || cp == "GBK" || cp == "GB2312" || cp == "CHINESE" || cp == "CN-GB" ||
|
|
cp == "CSGB2312" || cp == "CSGB231280" || cp == "CSISO58BG231280" ||
|
|
cp == "GB_2312-80" || cp == "GB231280" || cp == "GB2312-80" ||
|
|
cp == "ISO-IR-58" || cp == "GB18030" )
|
|
{
|
|
return "ANSI_936";
|
|
//Korean
|
|
}
|
|
else if ( cp == "ANSI_949" || cp == "EUCKR" )
|
|
{
|
|
return "ANSI_949";
|
|
//Chinese Big5 (Taiwan, Hong Kong SAR)
|
|
}
|
|
else if ( cp == "ANSI_950" || cp == "BIG5" || cp == "CN-BIG5" || cp == "CSBIG5" ||
|
|
cp == "X-X-BIG5" || cp == "BIG5-HKSCS" )
|
|
{
|
|
return "ANSI_950";
|
|
|
|
//celtic
|
|
/* } else if (cp=="ISO8859-14") {
|
|
return "ISO8859-14";
|
|
} else if (cp=="TSCII") {
|
|
return "TSCII"; //tamil
|
|
}*/
|
|
|
|
}
|
|
else if ( cp == "UTF-8" || cp == "UTF8" || cp == "UTF8-BIT" )
|
|
{
|
|
return "UTF-8";
|
|
}
|
|
else if ( cp == "UTF-16" || cp == "UTF16" || cp == "UTF16-BIT" )
|
|
{
|
|
return "UTF-16";
|
|
}
|
|
|
|
return "ANSI_1252";
|
|
}
|