mirror of
https://github.com/xiaoyifang/goldendict-ng.git
synced 2024-11-27 19:24:08 +00:00
refract encoding method
This commit is contained in:
xiaoyifang
parent
02a88c98ad
commit
f0a3df3d6f
5
dsl.cc
5
dsl.cc
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@ -75,6 +75,7 @@ using gd::wstring;
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using gd::wchar;
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using std::vector;
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using std::list;
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using Utf8::Encoding;
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using BtreeIndexing::WordArticleLink;
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using BtreeIndexing::IndexedWords;
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@ -597,7 +598,7 @@ void DslDictionary::loadArticle( uint32_t address,
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{
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articleData =
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Iconv::toWstring(
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getEncodingNameFor( DslEncoding( idxHeader.dslEncoding ) ),
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Utf8::getEncodingNameFor( Encoding( idxHeader.dslEncoding ) ),
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articleBody, articleSize );
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free( articleBody );
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@ -1361,7 +1362,7 @@ void DslDictionary::getArticleText( uint32_t articleAddress, QString & headword,
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{
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articleData =
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Iconv::toWstring(
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getEncodingNameFor( DslEncoding( idxHeader.dslEncoding ) ),
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getEncodingNameFor( Encoding( idxHeader.dslEncoding ) ),
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articleBody, articleSize );
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free( articleBody );
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@ -19,6 +19,7 @@ namespace Details {
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using gd::wstring;
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using std::list;
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using Utf8::Encoding;
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#ifndef __linux__
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@ -41,18 +42,6 @@ int wcscasecmp( const wchar *s1, const wchar *s2 )
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#endif
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//get the first line in string s1. -1 if not found
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int findFirstLinePosition( char* s1,int s1length, const char* s2,int s2length)
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{
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char* pos = std::search(s1,s1+s1length, s2, s2+s2length);
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if (pos == s1 + s1length)
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return pos-s1;
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//the line size.
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return pos- s1+ s2length;
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}
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static DSLLangCode LangCodes[] =
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{
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{ 1, "en" },
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@ -159,25 +148,7 @@ bool isAtSignFirst( wstring const & str )
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return reg.indexIn( gd::toQString( str ) ) == 0;
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}
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char const* getEncodingNameFor(DslEncoding e)
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{
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switch (e)
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{
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case Utf16LE:
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return "UTF-16LE";
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case Utf16BE:
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return "UTF-16BE";
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case Windows1252:
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return "WINDOWS-1252";
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case Windows1251:
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return "WINDOWS-1251";
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case Details::Utf8:
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return "UTF-8";
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case Windows1250:
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default:
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return "WINDOWS-1250";
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}
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}
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/////////////// ArticleDom
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@ -813,7 +784,7 @@ void ArticleDom::nextChar() THROW_SPEC( eot )
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{
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if ( !*stringPos )
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throw eot();
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else{
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ch = *stringPos++;
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if ( ch == L'\\' )
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@ -825,14 +796,12 @@ void ArticleDom::nextChar() THROW_SPEC( eot )
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escaped = true;
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}
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else
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if ( ch == L'[' && *stringPos == L'[' )
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else if ( ch == L'[' && *stringPos == L'[' )
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{
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++stringPos;
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escaped = true;
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}
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else
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if ( ch == L']' && *stringPos == L']' )
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else if ( ch == L']' && *stringPos == L']' )
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{
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++stringPos;
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escaped = true;
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@ -842,7 +811,7 @@ void ArticleDom::nextChar() THROW_SPEC( eot )
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if( ch == '\n' || ch == '\r' )
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lineStartPos = stringPos;
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}
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}
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bool ArticleDom::atSignFirstInLine()
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@ -857,7 +826,7 @@ bool ArticleDom::atSignFirstInLine()
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/////////////// DslScanner
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DslScanner::DslScanner( string const & fileName ) THROW_SPEC( Ex, Iconv::Ex ):
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encoding( Windows1252 ), readBufferPtr( readBuffer ),
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encoding( Utf8::Windows1252 ), readBufferPtr( readBuffer ),
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readBufferLeft( 0 ), linesRead( 0 )
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{
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// Since .dz is backwards-compatible with .gz, we use gz- functions to
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@ -884,10 +853,10 @@ DslScanner::DslScanner( string const & fileName ) THROW_SPEC( Ex, Iconv::Ex ):
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// If the file begins with the dedicated Unicode marker, we just consume
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// it. If, on the other hand, it's not, we return the bytes back
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if ( firstBytes[ 0 ] == 0xFF && firstBytes[ 1 ] == 0xFE )
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encoding = Utf16LE;
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encoding = Utf8::Utf16LE;
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else
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if ( firstBytes[ 0 ] == 0xFE && firstBytes[ 1 ] == 0xFF )
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encoding = Utf16BE;
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encoding = Utf8::Utf16BE;
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else
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if ( firstBytes[ 0 ] == 0xEF && firstBytes[ 1 ] == 0xBB )
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{
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@ -899,22 +868,22 @@ DslScanner::DslScanner( string const & fileName ) THROW_SPEC( Ex, Iconv::Ex ):
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throw exMalformedDslFile( fileName );
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}
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encoding = Utf8;
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encoding = Utf8::Utf8;
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}
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else
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{
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if ( firstBytes[ 0 ] && !firstBytes[ 1 ] )
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encoding = Utf16LE;
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encoding = Utf8::Utf16LE;
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else
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if ( !firstBytes[ 0 ] && firstBytes[ 1 ] )
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encoding = Utf16BE;
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encoding = Utf8::Utf16BE;
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else
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{
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// Ok, this doesn't look like 16-bit Unicode. We will start with a
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// 8-bit encoding with an intent to find out the exact one from
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// the header.
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needExactEncoding = true;
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encoding = Windows1251;
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encoding = Utf8::Windows1251;
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}
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if ( gzrewind( f ) )
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@ -995,13 +964,13 @@ DslScanner::DslScanner( string const & fileName ) THROW_SPEC( Ex, Iconv::Ex ):
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}
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else
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if ( !wcscasecmp( arg.c_str(), GD_NATIVE_TO_WS( L"Latin" ) ) )
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encoding = Windows1252;
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encoding = Utf8::Windows1252;
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else
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if ( !wcscasecmp( arg.c_str(), GD_NATIVE_TO_WS( L"Cyrillic" ) ) )
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encoding = Windows1251;
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encoding = Utf8::Windows1251;
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else
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if ( !wcscasecmp( arg.c_str(), GD_NATIVE_TO_WS( L"EasternEuropean" ) ) )
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encoding = Windows1250;
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encoding = Utf8::Windows1250;
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else
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{
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gzclose( f );
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@ -1036,8 +1005,6 @@ bool DslScanner::readNextLine( wstring & out, size_t & offset, bool only_head_wo
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// Check that we have bytes to read
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if ( readBufferLeft < 5000 )
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{
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//readBufferPtr+=pos;
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//readBufferLeft-=pos;
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if ( !gzeof( f ) )
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{
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// To avoid having to deal with ring logic, we move the remaining bytes
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@ -1053,19 +1020,12 @@ bool DslScanner::readNextLine( wstring & out, size_t & offset, bool only_head_wo
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readBufferPtr = readBuffer;
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readBufferLeft += (size_t) result;
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/*QByteArray frag = QByteArray::fromRawData(readBuffer, readBufferLeft);
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fragStream = new QTextStream(frag) ;
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fragStream->setCodec(codec);*/
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}
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}
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//if(fragStream->atEnd())
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// return false;
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if(readBufferLeft<=0)
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return false;
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//QString line=fragStream->readLine();
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int pos = findFirstLinePosition(readBufferPtr,readBufferLeft, lineFeed,lineFeedLength);
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int pos = Utf8::findFirstLinePosition(readBufferPtr,readBufferLeft, lineFeed,lineFeedLength);
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if(pos==-1)
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return false;
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QString line = codec->toUnicode(readBufferPtr, pos);
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@ -1123,25 +1083,25 @@ bool DslScanner::readNextLineWithoutComments( wstring & out, size_t & offset , b
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/////////////// DslScanner
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void DslScanner::initLineFeed(DslEncoding e)
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void DslScanner::initLineFeed(Utf8::Encoding e)
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{
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switch (e)
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{
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case Utf16LE:
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case Utf8::Utf16LE:
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lineFeed= new char[2] {0x0A,0};
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lineFeedLength = 2;
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break;
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case Utf16BE:
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case Utf8::Utf16BE:
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lineFeed = new char[2] { 0,0x0A};
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lineFeedLength = 2;
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break;
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case Windows1252:
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case Utf8::Windows1252:
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case Windows1251:
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case Utf8::Windows1251:
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case Details::Utf8:
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case Utf8::Utf8:
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case Windows1250:
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case Utf8::Windows1250:
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default:
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lineFeedLength = 1;
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lineFeed = new char[1] {0x0A};
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@ -12,6 +12,7 @@
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#include "iconv.hh"
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#include <QTextCodec>
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#include <QByteArray>
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#include "utf8.hh"
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// Implementation details for Dsl, not part of its interface
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namespace Dsl {
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@ -22,17 +23,9 @@ using gd::wstring;
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using gd::wchar;
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using std::list;
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using std::vector;
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using Utf8::Encoding;
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// Those are possible encodings for .dsl files
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enum DslEncoding
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{
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Utf16LE,
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Utf16BE,
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Windows1252,
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Windows1251,
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Windows1250,
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Utf8 // This is an extension. Detected solely by the UTF8 BOM.
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};
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struct DSLLangCode
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{
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@ -44,8 +37,6 @@ string findCodeForDslId( int id );
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bool isAtSignFirst( wstring const & str );
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char const* getEncodingNameFor(DslEncoding e);
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/// Parses the DSL language, representing it in its structural DOM form.
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struct ArticleDom
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{
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@ -111,7 +102,7 @@ private:
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class DslScanner
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{
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gzFile f;
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DslEncoding encoding;
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Encoding encoding;
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QTextCodec* codec;
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wstring dictionaryName;
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wstring langFrom, langTo;
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@ -138,9 +129,9 @@ public:
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~DslScanner() throw();
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/// Returns the detected encoding of this file.
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DslEncoding getEncoding() const
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Encoding getEncoding() const
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{ return encoding; }
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void initLineFeed(DslEncoding e);
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void initLineFeed(Encoding e);
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/// Returns the dictionary's name, as was read from file's headers.
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wstring const & getDictionaryName() const
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@ -207,8 +198,8 @@ inline size_t DslScanner::distanceToBytes( size_t x ) const
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{
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switch( encoding )
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{
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case Utf16LE:
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case Utf16BE:
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case Utf8::Utf16LE:
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case Utf8::Utf16BE:
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return x*2;
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default:
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return x;
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109
gls.cc
109
gls.cc
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@ -58,13 +58,7 @@ using gd::wchar;
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using BtreeIndexing::WordArticleLink;
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using BtreeIndexing::IndexedWords;
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using BtreeIndexing::IndexInfo;
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enum Encoding
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{
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Utf8,
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Utf16LE,
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Utf16BE
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};
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using Utf8::Encoding;
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/////////////// GlsScanner
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@ -73,15 +67,14 @@ class GlsScanner
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gzFile f;
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Encoding encoding;
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QTextCodec* codec;
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Iconv iconv;
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wstring dictionaryName;
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wstring dictionaryDecription, dictionaryAuthor;
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wstring langFrom, langTo;
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char readBuffer[ 10000 ];
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char * readBufferPtr;
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size_t readBufferLeft;
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QTextStream* fragStream;
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qint64 pos;
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const char* lineFeed;
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int lineFeedLength;
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unsigned linesRead;
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public:
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@ -126,30 +119,15 @@ public:
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/// Reading begins from the first line after the headers (ones which end
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/// by the "### Glossary section:" line).
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bool readNextLine( wstring &, size_t & offset ) THROW_SPEC( Ex, Iconv::Ex );
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void initLineFeed(Utf8::Encoding e);
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/// Returns the number of lines read so far from the file.
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unsigned getLinesRead() const
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{ return linesRead; }
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/// Returns a name to be passed to iconv for the given encoding.
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static char const * getEncodingNameFor( Encoding e )
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{
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switch( e )
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{
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case Utf16LE:
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return Iconv::Utf16Le;
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case Utf16BE:
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return "UTF-16BE";
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case Utf8:
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default:
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return Iconv::Utf8;
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}
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}
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};
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GlsScanner::GlsScanner( string const & fileName ) THROW_SPEC( Ex, Iconv::Ex ):
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encoding( Utf8 ), iconv( Iconv::GdWchar, Iconv::Utf8 ), readBufferPtr( readBuffer ),
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readBufferLeft( 0 ), linesRead( 0 ), pos(0)
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encoding( Utf8::Utf8 ), readBufferPtr( readBuffer ),
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readBufferLeft( 0 ), linesRead( 0 )
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{
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// Since .dz is backwards-compatible with .gz, we use gz- functions to
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// read it -- they are much nicer than the dict_data- ones.
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@ -172,10 +150,10 @@ GlsScanner::GlsScanner( string const & fileName ) THROW_SPEC( Ex, Iconv::Ex ):
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// If the file begins with the dedicated Unicode marker, we just consume
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// it. If, on the other hand, it's not, we return the bytes back
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if ( firstBytes[ 0 ] == 0xFF && firstBytes[ 1 ] == 0xFE )
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encoding = Utf16LE;
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encoding = Utf8::Utf16LE;
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else
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if ( firstBytes[ 0 ] == 0xFE && firstBytes[ 1 ] == 0xFF )
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encoding = Utf16BE;
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encoding = Utf8::Utf16BE;
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else
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if ( firstBytes[ 0 ] == 0xEF && firstBytes[ 1 ] == 0xBB )
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{
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@ -186,7 +164,7 @@ GlsScanner::GlsScanner( string const & fileName ) THROW_SPEC( Ex, Iconv::Ex ):
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gzclose( f );
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throw exMalformedGlsFile( fileName );
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}
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encoding = Utf8;
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encoding = Utf8::Utf8;
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}
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else
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{
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@ -195,12 +173,10 @@ GlsScanner::GlsScanner( string const & fileName ) THROW_SPEC( Ex, Iconv::Ex ):
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gzclose( f );
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throw exCantOpen( fileName );
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}
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encoding = Utf8;
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encoding = Utf8::Utf8;
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}
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if( encoding != Utf8 )
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iconv.reinit( Iconv::GdWchar, getEncodingNameFor( encoding ) );
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codec = QTextCodec::codecForName(getEncodingNameFor(encoding));
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codec = QTextCodec::codecForName(Utf8::getEncodingNameFor(encoding));
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// We now can use our own readNextLine() function
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wstring str;
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@ -267,44 +243,73 @@ GlsScanner::GlsScanner( string const & fileName ) THROW_SPEC( Ex, Iconv::Ex ):
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}
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}
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}
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void GlsScanner::initLineFeed(Utf8::Encoding e)
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{
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switch (e)
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{
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case Utf8::Utf16LE:
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lineFeed= new char[2] {0x0A,0};
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lineFeedLength = 2;
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break;
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case Utf8::Utf16BE:
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lineFeed = new char[2] { 0,0x0A};
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lineFeedLength = 2;
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break;
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case Utf8::Windows1252:
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case Utf8::Windows1251:
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case Utf8::Utf8:
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case Utf8::Windows1250:
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default:
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lineFeedLength = 1;
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lineFeed = new char[1] {0x0A};
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}
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}
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bool GlsScanner::readNextLine( wstring & out, size_t & offset ) THROW_SPEC( Ex,
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Iconv::Ex )
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{
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offset = (size_t)(gztell(f) - readBufferLeft + pos);
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offset = (size_t)(gztell(f) - readBufferLeft);
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{
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// Check that we have bytes to read
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if (readBufferLeft - pos < 2000)
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if ( readBufferLeft < 5000 )
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{
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readBufferPtr += pos;
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readBufferLeft -= pos;
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if (!gzeof(f))
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if ( !gzeof( f ) )
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{
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// To avoid having to deal with ring logic, we move the remaining bytes
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// to the beginning
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memmove(readBuffer, readBufferPtr, readBufferLeft);
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memmove( readBuffer, readBufferPtr, readBufferLeft );
|
||||
|
||||
// Read some more bytes to readBuffer
|
||||
int result = gzread(f, readBuffer + readBufferLeft,
|
||||
sizeof(readBuffer) - readBufferLeft);
|
||||
int result = gzread( f, readBuffer + readBufferLeft,
|
||||
sizeof( readBuffer ) - readBufferLeft );
|
||||
|
||||
if (result == -1)
|
||||
throw exCantReadGlsFile();
|
||||
|
||||
readBufferPtr = readBuffer;
|
||||
readBufferLeft += (size_t)result;
|
||||
QByteArray frag = QByteArray::fromRawData(readBuffer, readBufferLeft);
|
||||
fragStream = new QTextStream(frag);
|
||||
fragStream->setCodec(codec);
|
||||
readBufferLeft += (size_t) result;
|
||||
}
|
||||
}
|
||||
|
||||
if (fragStream->atEnd())
|
||||
if(readBufferLeft<=0)
|
||||
return false;
|
||||
|
||||
QString line = fragStream->readLine();
|
||||
pos = fragStream->pos();
|
||||
int pos = Utf8::findFirstLinePosition(readBufferPtr,readBufferLeft, lineFeed,lineFeedLength);
|
||||
if(pos==-1)
|
||||
return false;
|
||||
QString line = codec->toUnicode(readBufferPtr, pos);
|
||||
if(line.endsWith("\n"))
|
||||
line.chop(1);
|
||||
if(line.endsWith("\r"))
|
||||
line.chop(1);
|
||||
|
||||
if(pos>readBufferLeft){
|
||||
pos=readBufferLeft;
|
||||
}
|
||||
readBufferLeft -= pos;
|
||||
readBufferPtr += pos;
|
||||
linesRead++;
|
||||
|
||||
#ifdef __WIN32
|
||||
|
|
@ -669,7 +674,7 @@ void GlsDictionary::loadArticleText( uint32_t address,
|
|||
}
|
||||
else
|
||||
{
|
||||
string articleData = Iconv::toUtf8( GlsScanner::getEncodingNameFor( Encoding( idxHeader.glsEncoding ) ), articleBody, articleSize );
|
||||
string articleData = Iconv::toUtf8( Utf8::getEncodingNameFor( Encoding( idxHeader.glsEncoding ) ), articleBody, articleSize );
|
||||
string::size_type start_pos = 0, end_pos = 0;
|
||||
|
||||
for( ; ; )
|
||||
|
|
|
|||
33
utf8.cc
33
utf8.cc
|
|
@ -3,6 +3,7 @@
|
|||
|
||||
#include "utf8.hh"
|
||||
#include <vector>
|
||||
#include <algorithm>
|
||||
|
||||
namespace Utf8 {
|
||||
|
||||
|
|
@ -175,4 +176,36 @@ bool isspace( int c )
|
|||
}
|
||||
}
|
||||
|
||||
//get the first line in string s1. -1 if not found
|
||||
int findFirstLinePosition( char* s1,int s1length, const char* s2,int s2length)
|
||||
{
|
||||
char* pos = std::search(s1,s1+s1length, s2, s2+s2length);
|
||||
|
||||
if (pos == s1 + s1length)
|
||||
return pos-s1;
|
||||
|
||||
//the line size.
|
||||
return pos- s1+ s2length;
|
||||
}
|
||||
|
||||
char const* getEncodingNameFor(Encoding e)
|
||||
{
|
||||
switch (e)
|
||||
{
|
||||
case Utf16LE:
|
||||
return "UTF-16LE";
|
||||
case Utf16BE:
|
||||
return "UTF-16BE";
|
||||
case Windows1252:
|
||||
return "WINDOWS-1252";
|
||||
case Windows1251:
|
||||
return "WINDOWS-1251";
|
||||
case Utf8:
|
||||
return "UTF-8";
|
||||
case Windows1250:
|
||||
default:
|
||||
return "WINDOWS-1250";
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
|
|
|||
18
utf8.hh
18
utf8.hh
|
|
@ -1,6 +1,7 @@
|
|||
/* This file is (c) 2008-2012 Konstantin Isakov <ikm@goldendict.org>
|
||||
* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
|
||||
|
||||
#ifndef __UTF8_HH_INCLUDED__
|
||||
#define __UTF8_HH_INCLUDED__
|
||||
#include <cstdio>
|
||||
#include <string>
|
||||
#include "cpp_features.hh"
|
||||
|
|
@ -13,6 +14,17 @@
|
|||
/// places.
|
||||
namespace Utf8 {
|
||||
|
||||
// Those are possible encodings for .dsl files
|
||||
enum Encoding
|
||||
{
|
||||
Utf16LE,
|
||||
Utf16BE,
|
||||
Windows1252,
|
||||
Windows1251,
|
||||
Windows1250,
|
||||
Utf8 // This is an extension. Detected solely by the UTF8 BOM.
|
||||
};
|
||||
|
||||
using std::string;
|
||||
using gd::wstring;
|
||||
using gd::wchar;
|
||||
|
|
@ -40,4 +52,8 @@ wstring decode( string const & ) THROW_SPEC( exCantDecode );
|
|||
/// Linux but was messing up strings under Windows.
|
||||
bool isspace( int c );
|
||||
|
||||
//get the first line in string s1. -1 if not found
|
||||
int findFirstLinePosition( char* s1,int s1length, const char* s2,int s2length);
|
||||
char const* getEncodingNameFor(Encoding e);
|
||||
}
|
||||
#endif
|
||||
|
|
|
|||
Loading…
Reference in a new issue