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bgl.cc
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/* This file is (c) 2008-2012 Konstantin Isakov <ikm@goldendict.org>
* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
#include "bgl.hh"
#include "btreeidx.hh"
#include "bgl_babylon.hh"
#include "file.hh"
#include "folding.hh"
#include "utf8.hh"
#include "chunkedstorage.hh"
#include "langcoder.hh"
#include "language.hh"
#include "gddebug.hh"
#include "fsencoding.hh"
#include "htmlescape.hh"
#include "ftshelpers.hh"
#include <map>
#include <set>
#include <list>
#include <zlib.h>
#include <ctype.h>
#include <string.h>
#include <QSemaphore>
#include <QThreadPool>
#include <QAtomicInt>
#include <QDebug>
#include <QRegExp>
#if QT_VERSION >= QT_VERSION_CHECK( 5, 0, 0 )
#include <QRegularExpression>
#endif
#include "qt4x5.hh"
namespace Bgl {
using std::map;
using std::multimap;
using std::set;
using gd::wstring;
using gd::wchar;
using std::list;
using std::pair;
using std::string;
using BtreeIndexing::WordArticleLink;
using BtreeIndexing::IndexedWords;
using BtreeIndexing::IndexInfo;
namespace
{
enum
{
Signature = 0x584c4742, // BGLX on little-endian, XLGB on big-endian
CurrentFormatVersion = 19 + BtreeIndexing::FormatVersion
};
struct IdxHeader
{
uint32_t signature; // First comes the signature, BGLX
uint32_t formatVersion; // File format version, currently 1.
uint32_t parserVersion; // Version of the parser used to parse the BGL file.
// If it's lower than the current one, the file is to
// be re-parsed.
uint32_t foldingVersion; // Version of the folding algorithm used when building
// index. If it's different from the current one,
// the file is to be rebuilt.
uint32_t articleCount; // Total number of articles, for informative purposes only
uint32_t wordCount; // Total number of words, for informative purposes only
/// Add more fields here, like name, description, author and such.
uint32_t chunksOffset; // The offset to chunks' storage
uint32_t indexBtreeMaxElements; // Two fields from IndexInfo
uint32_t indexRootOffset;
uint32_t resourceListOffset; // The offset of the list of resources
uint32_t resourcesCount; // Number of resources stored
uint32_t langFrom; // Source language
uint32_t langTo; // Target language
uint32_t iconAddress; // Address of the icon in the chunks' storage
uint32_t iconSize; // Size of the icon in the chunks' storage, 0 = no icon
uint32_t descriptionAddress; // Address of the dictionary description in the chunks' storage
uint32_t descriptionSize; // Size of the description in the chunks' storage, 0 = no description
}
#ifndef _MSC_VER
__attribute__((packed))
#endif
;
bool indexIsOldOrBad( string const & indexFile )
{
File::Class idx( indexFile, "rb" );
IdxHeader header;
return idx.readRecords( &header, sizeof( header ), 1 ) != 1 ||
header.signature != Signature ||
header.formatVersion != CurrentFormatVersion ||
header.parserVersion != Babylon::ParserVersion ||
header.foldingVersion != Folding::Version;
}
// Removes the $1$-like postfix
string removePostfix( string const & in )
{
if ( in.size() && in[ in.size() - 1 ] == '$' )
{
// Find the end of it and cut it, barring any unexpectedness
for( long x = in.size() - 2; x >= 0; x-- )
{
if ( in[ x ] == '$' )
return in.substr( 0, x );
else
if ( !isdigit( in[ x ] ) )
break;
}
}
return in;
}
// Removes any leading or trailing whitespace
void trimWs( string & word )
{
if ( word.size() )
{
unsigned begin = 0;
while( begin < word.size() && Utf8::isspace( word[ begin ] ) )
++begin;
if ( begin == word.size() ) // Consists of ws entirely?
word.clear();
else
{
unsigned end = word.size();
// Doesn't consist of ws entirely, so must end with just isspace()
// condition.
while( Utf8::isspace( word[ end - 1 ] ) )
--end;
if ( end != word.size() || begin )
word = string( word, begin, end - begin );
}
}
}
void addEntryToIndex( string & word,
uint32_t articleOffset,
IndexedWords & indexedWords,
vector< wchar > & wcharBuffer )
{
// Strip any leading or trailing whitespaces
trimWs( word );
// If the word starts with a slash, we drop it. There are quite a lot
// of them, and they all seem to be redudant duplicates.
if ( word.size() && word[ 0 ] == '/' )
return;
// Check the input word for a superscript postfix ($1$, $2$ etc), which
// signifies different meaning in Bgl files. We emit different meaning
// as different articles, but they appear in the index as the same word.
if ( word.size() && word[ word.size() - 1 ] == '$' )
{
word = removePostfix( word );
trimWs( word );
}
// Convert the word from utf8 to wide chars
if ( wcharBuffer.size() <= word.size() )
wcharBuffer.resize( word.size() + 1 );
long result = Utf8::decode( word.c_str(), word.size(),
&wcharBuffer.front() );
if ( result < 0 )
{
gdWarning( "Failed to decode utf8 of headword \"%s\", skipping it.", word.c_str() );
return;
}
indexedWords.addWord( wstring( &wcharBuffer.front(), result ), articleOffset );
}
DEF_EX( exFailedToDecompressArticle, "Failed to decompress article's body", Dictionary::Ex )
DEF_EX( exChunkIndexOutOfRange, "Chunk index is out of range", Dictionary::Ex )
class BglDictionary: public BtreeIndexing::BtreeDictionary
{
Mutex idxMutex;
File::Class idx;
IdxHeader idxHeader;
ChunkedStorage::Reader chunks;
public:
BglDictionary( string const & id, string const & indexFile,
string const & dictionaryFile );
virtual unsigned long getArticleCount() const
{ return idxHeader.articleCount; }
virtual unsigned long getWordCount() const
{ return idxHeader.wordCount; }
inline virtual quint32 getLangFrom() const
{ return idxHeader.langFrom; }
inline virtual quint32 getLangTo() const
{ return idxHeader.langTo; }
virtual sptr< Dictionary::WordSearchRequest > findHeadwordsForSynonym( wstring const & )
THROW_SPEC( std::exception );
virtual sptr< Dictionary::DataRequest > getArticle( wstring const &,
vector< wstring > const & alts,
wstring const &,
bool ignoreDiacritics )
THROW_SPEC( std::exception );
virtual sptr< Dictionary::DataRequest > getResource( string const & name )
THROW_SPEC( std::exception );
virtual sptr< Dictionary::DataRequest > getSearchResults( QString const & searchString,
int searchMode, bool matchCase,
int distanceBetweenWords,
int maxResults,
bool ignoreWordsOrder,
bool ignoreDiacritics );
virtual QString const& getDescription();
virtual void getArticleText( uint32_t articleAddress, QString & headword, QString & text );
virtual void makeFTSIndex(QAtomicInt & isCancelled, bool firstIteration );
virtual void setFTSParameters( Config::FullTextSearch const & fts )
{
can_FTS = fts.enabled
&& !fts.disabledTypes.contains( "BGL", Qt::CaseInsensitive )
&& ( fts.maxDictionarySize == 0 || getArticleCount() <= fts.maxDictionarySize );
}
protected:
virtual void loadIcon() throw();
private:
/// Loads an article with the given offset, filling the given strings.
void loadArticle( uint32_t offset, string & headword,
string & displayedHeadword, string & articleText );
static void replaceCharsetEntities( string & );
friend class BglHeadwordsRequest;
friend class BglArticleRequest;
friend class BglResourceRequest;
};
BglDictionary::BglDictionary( string const & id, string const & indexFile,
string const & dictionaryFile ):
BtreeDictionary( id, vector< string >( 1, dictionaryFile ) ),
idx( indexFile, "rb" ),
idxHeader( idx.read< IdxHeader >() ),
chunks( idx, idxHeader.chunksOffset )
{
idx.seek( sizeof( idxHeader ) );
// Read the dictionary's name
size_t len = idx.read< uint32_t >();
if( len )
{
vector< char > nameBuf( len );
idx.read( &nameBuf.front(), len );
setDictionaryName(string( &nameBuf.front(), len ));
}
// Initialize the index
openIndex( IndexInfo( idxHeader.indexBtreeMaxElements,
idxHeader.indexRootOffset ),
idx, idxMutex );
can_FTS = true;
ftsIdxName = indexFile + "_FTS";
if( !Dictionary::needToRebuildIndex( getDictionaryFilenames(), ftsIdxName )
&& !FtsHelpers::ftsIndexIsOldOrBad( ftsIdxName, this ) )
FTS_index_completed.ref();
}
void BglDictionary::loadIcon() throw()
{
if ( dictionaryIconLoaded )
return;
QString fileName =
QDir::fromNativeSeparators( FsEncoding::decode( getDictionaryFilenames()[ 0 ].c_str() ) );
// Remove the extension
fileName.chop( 3 );
if( !loadIconFromFile( fileName ) )
{
if( idxHeader.iconSize )
{
// Try loading icon now
vector< char > chunk;
Mutex::Lock _( idxMutex );
char * iconData = chunks.getBlock( idxHeader.iconAddress, chunk );
QImage img;
if (img.loadFromData( ( unsigned char *) iconData, idxHeader.iconSize ) )
{
// Load successful
dictionaryNativeIcon = QIcon( QPixmap::fromImage( img ) );
// Transform it to be square
int max = img.width() > img.height() ? img.width() : img.height();
QImage result( max, max, QImage::Format_ARGB32 );
result.fill( 0 ); // Black transparent
QPainter painter( &result );
painter.drawImage( QPoint( img.width() == max ? 0 : ( max - img.width() ) / 2,
img.height() == max ? 0 : ( max - img.height() ) / 2 ),
img );
painter.end();
dictionaryIcon = QIcon( QPixmap::fromImage( result ) );
}
}
if ( dictionaryIcon.isNull() )
dictionaryIcon = dictionaryNativeIcon = QIcon(":/icons/icon32_bgl.png");
}
dictionaryIconLoaded = true;
}
void BglDictionary::loadArticle( uint32_t offset, string & headword,
string & displayedHeadword,
string & articleText )
{
vector< char > chunk;
Mutex::Lock _( idxMutex );
char * articleData = chunks.getBlock( offset, chunk );
headword = articleData;
displayedHeadword = articleData + headword.size() + 1;
articleText =
string( articleData + headword.size() +
displayedHeadword.size() + 2 );
}
QString const& BglDictionary::getDescription()
{
if( !dictionaryDescription.isEmpty() )
return dictionaryDescription;
if( idxHeader.descriptionSize == 0 )
dictionaryDescription = "NONE";
else
{
Mutex::Lock _( idxMutex );
vector< char > chunk;
char * dictDescription = chunks.getBlock( idxHeader.descriptionAddress, chunk );
string str( dictDescription );
if( !str.empty() )
dictionaryDescription += QString( QObject::tr( "Copyright: %1%2" ) )
.arg( Html::unescape( QString::fromUtf8( str.data(), str.size() ) ) )
.arg( "\n\n" );
dictDescription += str.size() + 1;
str = string( dictDescription );
if( !str.empty() )
dictionaryDescription += QString( QObject::tr( "Author: %1%2" ) )
.arg( QString::fromUtf8( str.data(), str.size() ) )
.arg( "\n\n" );
dictDescription += str.size() + 1;
str = string( dictDescription );
if( !str.empty() )
dictionaryDescription += QString( QObject::tr( "E-mail: %1%2" ) )
.arg( QString::fromUtf8( str.data(), str.size() ) )
.arg( "\n\n" );
dictDescription += str.size() + 1;
str = string( dictDescription );
if( !str.empty() )
dictionaryDescription += Html::unescape( QString::fromUtf8( str.data(), str.size() ) );
}
return dictionaryDescription;
}
void BglDictionary::getArticleText( uint32_t articleAddress, QString & headword, QString & text )
{
try
{
string headwordStr, displayedHeadwordStr, articleStr;
loadArticle( articleAddress, headwordStr, displayedHeadwordStr, articleStr );
// Some headword normalization similar while indexing
trimWs( headwordStr );
if ( headwordStr.size() && headwordStr[ 0 ] == '/' )
headwordStr.erase(); // We will take headword from index later
if ( headwordStr.size()
&& headwordStr[ headwordStr.size() - 1 ] == '$' )
{
headwordStr = removePostfix( headwordStr );
trimWs( headwordStr );
}
headword = QString::fromUtf8( headwordStr.data(), headwordStr.size() );
wstring wstr = Utf8::decode( articleStr );
if ( getLangTo() == LangCoder::code2toInt( "he" ) )
{
for ( unsigned int i = 0; i < wstr.size(); i++ )
{
if ( (wstr[ i ] >= 224 && wstr[ i ] <= 250) || (wstr[ i ] >= 192 && wstr[ i ] <= 210) ) // Hebrew chars encoded ecoded as windows-1255 or ISO-8859-8, or as vowel-points of windows-1255
wstr[ i ] += 1488 - 224; // Convert to Hebrew unicode
}
}
text = Html::unescape( gd::toQString( wstr ) );
}
catch( std::exception &ex )
{
gdWarning( "BGL: Failed retrieving article from \"%s\", reason: %s\n", getName().c_str(), ex.what() );
}
}
void BglDictionary::makeFTSIndex( QAtomicInt & isCancelled, bool firstIteration )
{
if( !( Dictionary::needToRebuildIndex( getDictionaryFilenames(), ftsIdxName )
|| FtsHelpers::ftsIndexIsOldOrBad( ftsIdxName, this ) ) )
FTS_index_completed.ref();
if( haveFTSIndex() )
return;
if( firstIteration && getArticleCount() > FTS::MaxDictionarySizeForFastSearch )
return;
gdDebug( "Bgl: Building the full-text index for dictionary: %s\n",
getName().c_str() );
try
{
FtsHelpers::makeFTSIndex( this, isCancelled );
FTS_index_completed.ref();
}
catch( std::exception &ex )
{
gdWarning( "Bgl: Failed building full-text search index for \"%s\", reason: %s\n", getName().c_str(), ex.what() );
QFile::remove( FsEncoding::decode( ftsIdxName.c_str() ) );
}
}
/// BglDictionary::findHeadwordsForSynonym()
class BglHeadwordsRequest;
class BglHeadwordsRequestRunnable: public QRunnable
{
BglHeadwordsRequest & r;
QSemaphore & hasExited;
public:
BglHeadwordsRequestRunnable( BglHeadwordsRequest & r_,
QSemaphore & hasExited_ ): r( r_ ),
hasExited( hasExited_ )
{}
~BglHeadwordsRequestRunnable()
{
hasExited.release();
}
virtual void run();
};
class BglHeadwordsRequest: public Dictionary::WordSearchRequest
{
friend class BglHeadwordsRequestRunnable;
wstring str;
BglDictionary & dict;
QAtomicInt isCancelled;
QSemaphore hasExited;
public:
BglHeadwordsRequest( wstring const & word_,
BglDictionary & dict_ ):
str( word_ ), dict( dict_ )
{
QThreadPool::globalInstance()->start(
new BglHeadwordsRequestRunnable( *this, hasExited ) );
}
void run(); // Run from another thread by BglHeadwordsRequestRunnable
virtual void cancel()
{
isCancelled.ref();
}
~BglHeadwordsRequest()
{
isCancelled.ref();
hasExited.acquire();
}
};
void BglHeadwordsRequestRunnable::run()
{
r.run();
}
void BglHeadwordsRequest::run()
{
if ( Qt4x5::AtomicInt::loadAcquire( isCancelled ) )
{
finish();
return;
}
vector< WordArticleLink > chain = dict.findArticles( str );
wstring caseFolded = Folding::applySimpleCaseOnly( str );
for( unsigned x = 0; x < chain.size(); ++x )
{
if ( Qt4x5::AtomicInt::loadAcquire( isCancelled ) )
{
finish();
return;
}
string headword, displayedHeadword, articleText;
dict.loadArticle( chain[ x ].articleOffset,
headword, displayedHeadword, articleText );
wstring headwordDecoded;
try
{
headwordDecoded = Utf8::decode( removePostfix( headword ) );
}
catch( Utf8::exCantDecode & )
{
}
if ( caseFolded != Folding::applySimpleCaseOnly( headwordDecoded ) && !headwordDecoded.empty() )
{
// The headword seems to differ from the input word, which makes the
// input word its synonym.
Mutex::Lock _( dataMutex );
matches.push_back( headwordDecoded );
}
}
finish();
}
sptr< Dictionary::WordSearchRequest >
BglDictionary::findHeadwordsForSynonym( wstring const & word )
THROW_SPEC( std::exception )
{
return synonymSearchEnabled ? sptr< Dictionary::WordSearchRequest >(new BglHeadwordsRequest( word, *this )) :
Class::findHeadwordsForSynonym( word );
}
// Converts a $1$-like postfix to a <sup>1</sup> one
string postfixToSuperscript( string const & in )
{
if ( !in.size() || in[ in.size() - 1 ] != '$' )
return in;
for( long x = in.size() - 2; x >= 0; x-- )
{
if ( in[ x ] == '$' )
{
if ( in.size() - x - 2 > 2 )
{
// Large postfixes seem like something we wouldn't want to show --
// some dictionaries seem to have each word numbered using the
// postfix.
return in.substr( 0, x );
}
else
return in.substr( 0, x ) + "<sup>" + in.substr( x + 1, in.size() - x - 2 ) + "</sup>";
}
else
if ( !isdigit( in[ x ] ) )
break;
}
return in;
}
/// BglDictionary::getArticle()
class BglArticleRequest;
class BglArticleRequestRunnable: public QRunnable
{
BglArticleRequest & r;
QSemaphore & hasExited;
public:
BglArticleRequestRunnable( BglArticleRequest & r_,
QSemaphore & hasExited_ ): r( r_ ),
hasExited( hasExited_ )
{}
~BglArticleRequestRunnable()
{
hasExited.release();
}
virtual void run();
};
class BglArticleRequest: public Dictionary::DataRequest
{
friend class BglArticleRequestRunnable;
wstring word;
vector< wstring > alts;
BglDictionary & dict;
QAtomicInt isCancelled;
QSemaphore hasExited;
bool ignoreDiacritics;
public:
BglArticleRequest( wstring const & word_,
vector< wstring > const & alts_,
BglDictionary & dict_, bool ignoreDiacritics_ ):
word( word_ ), alts( alts_ ), dict( dict_ ), ignoreDiacritics( ignoreDiacritics_ )
{
QThreadPool::globalInstance()->start(
new BglArticleRequestRunnable( *this, hasExited ) );
}
void run(); // Run from another thread by BglArticleRequestRunnable
virtual void cancel()
{
isCancelled.ref();
}
void fixHebString(string & hebStr); // Hebrew support
void fixHebArticle(string & hebArticle); // Hebrew support
~BglArticleRequest()
{
isCancelled.ref();
hasExited.acquire();
}
};
void BglArticleRequestRunnable::run()
{
r.run();
}
void BglArticleRequest::fixHebString(string & hebStr) // Hebrew support - convert non-unicode to unicode
{
wstring hebWStr;
try
{
hebWStr = Utf8::decode(hebStr);
}
catch( Utf8::exCantDecode & )
{
hebStr = "Utf-8 decoding error";
return;
}
for (unsigned int i=0; i<hebWStr.size();i++)
{
if ( (hebWStr[ i ] >= 224 && hebWStr[ i ] <= 250) || (hebWStr[ i ] >= 192 && hebWStr[ i ] <= 210) ) // Hebrew chars encoded ecoded as windows-1255 or ISO-8859-8, or as vowel-points of windows-1255
hebWStr[i]+=1488-224; // Convert to Hebrew unicode
}
hebStr=Utf8::encode(hebWStr);
}
void BglArticleRequest::fixHebArticle(string & hebArticle) // Hebrew support - remove extra chars at the end
{
unsigned nulls;
for ( nulls = hebArticle.size(); nulls > 0 &&
( ( hebArticle[ nulls - 1 ] <= 32 &&
hebArticle[ nulls - 1 ] >= 0 ) ||
( hebArticle[ nulls - 1 ] >= 65 &&
hebArticle[ nulls - 1 ] <= 90 ) ); --nulls ) ; //special chars and A-Z
hebArticle.resize( nulls );
}
void BglArticleRequest::run()
{
if ( Qt4x5::AtomicInt::loadAcquire( isCancelled ) )
{
finish();
return;
}
vector< WordArticleLink > chain = dict.findArticles( word, ignoreDiacritics );
static Language::Id hebrew = LangCoder::code2toInt( "he" ); // Hebrew support
for( unsigned x = 0; x < alts.size(); ++x )
{
/// Make an additional query for each alt
vector< WordArticleLink > altChain = dict.findArticles( alts[ x ], ignoreDiacritics );
chain.insert( chain.end(), altChain.begin(), altChain.end() );
}
multimap< wstring, pair< string, string > > mainArticles, alternateArticles;
set< uint32_t > articlesIncluded; // Some synonims make it that the articles
// appear several times. We combat this
// by only allowing them to appear once.
// Sometimes the articles are physically duplicated. We store hashes of
// the bodies to account for this.
set< QByteArray > articleBodiesIncluded;
wstring wordCaseFolded = Folding::applySimpleCaseOnly( word );
if( ignoreDiacritics )
wordCaseFolded = Folding::applyDiacriticsOnly( wordCaseFolded );
for( unsigned x = 0; x < chain.size(); ++x )
{
if ( Qt4x5::AtomicInt::loadAcquire( isCancelled ) )
{
finish();
return;
}
try
{
if ( articlesIncluded.find( chain[ x ].articleOffset ) != articlesIncluded.end() )
continue; // We already have this article in the body.
// Now grab that article
string headword, displayedHeadword, articleText;
dict.loadArticle( chain[ x ].articleOffset,
headword, displayedHeadword, articleText );
// Ok. Now, does it go to main articles, or to alternate ones? We list
// main ones first, and alternates after.
// We do the case-folded and postfix-less comparison here.
wstring headwordStripped =
Folding::applySimpleCaseOnly( Utf8::decode( removePostfix( headword ) ) );
if( ignoreDiacritics )
headwordStripped = Folding::applyDiacriticsOnly( headwordStripped );
// Hebrew support - fix Hebrew text
if (dict.idxHeader.langFrom == hebrew)
{
displayedHeadword= displayedHeadword.size() ? displayedHeadword : headword;
fixHebString(articleText);
fixHebArticle(articleText);
fixHebString(displayedHeadword);
}
string const & targetHeadword = displayedHeadword.size() ?
displayedHeadword : headword;
QCryptographicHash hash( QCryptographicHash::Md5 );
hash.addData( targetHeadword.data(), targetHeadword.size() + 1 ); // with 0
hash.addData( articleText.data(), articleText.size() );
if ( !articleBodiesIncluded.insert( hash.result() ).second )
continue; // Already had this body
multimap< wstring, pair< string, string > > & mapToUse =
( wordCaseFolded == headwordStripped ) ?
mainArticles : alternateArticles;
mapToUse.insert( pair< wstring, pair< string, string > >(
Folding::applySimpleCaseOnly( Utf8::decode( headword ) ),
pair< string, string >( targetHeadword, articleText ) ) );
articlesIncluded.insert( chain[ x ].articleOffset );
} // try
catch( std::exception &ex )
{
gdWarning( "BGL: Failed loading article from \"%s\", reason: %s\n", dict.getName().c_str(), ex.what() );
}
}
if ( mainArticles.empty() && alternateArticles.empty() )
{
// No such word
finish();
return;
}
string result;
multimap< wstring, pair< string, string > >::const_iterator i;
string cleaner = "</font>""</font>""</font>""</font>""</font>""</font>"
"</font>""</font>""</font>""</font>""</font>""</font>"
"</b></b></b></b></b></b></b></b>"
"</i></i></i></i></i></i></i></i>";
for( i = mainArticles.begin(); i != mainArticles.end(); ++i )
{
if (dict.isFromLanguageRTL() ) // RTL support
result += "<h3 style=\"text-align:right;direction:rtl\">";
else
result += "<h3>";
result += postfixToSuperscript( i->second.first );
result += "</h3>";
if ( dict.isToLanguageRTL() )
result += "<div class=\"bglrtl\">" + i->second.second + "</div>";
else
result += "<div>" + i->second.second + "</div>";
result += cleaner;
}
for( i = alternateArticles.begin(); i != alternateArticles.end(); ++i )
{
if (dict.isFromLanguageRTL() ) // RTL support
result += "<h3 style=\"text-align:right;direction:rtl\">";
else
result += "<h3>";
result += postfixToSuperscript( i->second.first );
result += "</h3>";
if ( dict.isToLanguageRTL() )
result += "<div class=\"bglrtl\">" + i->second.second + "</div>";
else
result += "<div>" + i->second.second + "</div>";
result += cleaner;
}
// Do some cleanups in the text
BglDictionary::replaceCharsetEntities( result );
#if QT_VERSION >= QT_VERSION_CHECK( 5, 0, 0 )
result = QString::fromUtf8( result.c_str() )
// onclick location to link
.replace( QRegularExpression( "<([a-z0-9]+)\\s+[^>]*onclick=\"[a-z.]*location(?:\\.href)\\s*=\\s*'([^']+)[^>]*>([^<]+)</\\1>",
QRegularExpression::CaseInsensitiveOption ),
"<a href=\"\\2\">\\3</a>")
.replace( QRegularExpression( "(<\\s*a\\s+[^>]*href\\s*=\\s*[\"']\\s*)bword://",
QRegularExpression::CaseInsensitiveOption ),
"\\1bword:" )
//remove invalid width, height attrs
.replace( QRegularExpression( "(width|height)\\s*=\\s*[\"']\\d{7,}[\"'']" ),
"" )
//remove invalid <br> tag
.replace( QRegularExpression( "<br>(<div|<table|<tbody|<tr|<td|</div>|</table>|</tbody>|</tr>|</td>|function addScript|var scNode|scNode|var atag|while\\(atag|atag=atag|document\\.getElementsByTagName|addScript|src=\"bres|<a onmouseover=\"return overlib|onclick=\"return overlib)",
QRegularExpression::CaseInsensitiveOption ),
"\\1" )
.replace( QRegularExpression( "(AUTOSTATUS, WRAP\\);\" |</DIV>|addScript\\('JS_FILE_PHONG_VT_45634'\\);|appendChild\\(scNode\\);|atag\\.firstChild;)<br>",
QRegularExpression::CaseInsensitiveOption ),
" \\1 " )
.toUtf8().data();
#else
result = QString::fromUtf8( result.c_str() )
// onclick location to link
.replace( QRegExp( "<([a-z0-9]+)\\s+[^>]*onclick=\"[a-z.]*location(?:\\.href)\\s*=\\s*'([^']+)[^>]*>([^<]+)</\\1>", Qt::CaseInsensitive ),
"<a href=\"\\2\">\\3</a>")
.replace( QRegExp( "(<\\s*a\\s+[^>]*href\\s*=\\s*[\"']\\s*)bword://", Qt::CaseInsensitive ),
"\\1bword:" )
//remove invalid width, height attrs
.replace(QRegExp( "(width|height)\\s*=\\s*[\"']\\d{7,}[\"'']" ),
"" )
//remove invalid <br> tag
.replace( QRegExp( "<br>(<div|<table|<tbody|<tr|<td|</div>|</table>|</tbody>|</tr>|</td>|function addScript|var scNode|scNode|var atag|while\\(atag|atag=atag|document\\.getElementsByTagName|addScript|src=\"bres|<a onmouseover=\"return overlib|onclick=\"return overlib)", Qt::CaseInsensitive ),
"\\1" )
.replace( QRegExp( "(AUTOSTATUS, WRAP\\);\" |</DIV>|addScript\\('JS_FILE_PHONG_VT_45634'\\);|appendChild\\(scNode\\);|atag\\.firstChild;)<br>", Qt::CaseInsensitive ),
" \\1 " )
.toUtf8().data();
#endif
Mutex::Lock _( dataMutex );
data.resize( result.size() );
memcpy( &data.front(), result.data(), result.size() );
hasAnyData = true;
finish();
}
sptr< Dictionary::DataRequest > BglDictionary::getArticle( wstring const & word,
vector< wstring > const & alts,
wstring const &,
bool ignoreDiacritics )
THROW_SPEC( std::exception )
{
return sptr< Dictionary::DataRequest >(new BglArticleRequest( word, alts, *this, ignoreDiacritics ));
}
//// BglDictionary::getResource()
class BglResourceRequest;
class BglResourceRequestRunnable: public QRunnable
{
BglResourceRequest & r;
QSemaphore & hasExited;
public:
BglResourceRequestRunnable( BglResourceRequest & r_,
QSemaphore & hasExited_ ): r( r_ ),
hasExited( hasExited_ )
{}
~BglResourceRequestRunnable()
{
hasExited.release();
}
virtual void run();
};
class BglResourceRequest: public Dictionary::DataRequest
{
friend class BglResourceRequestRunnable;
Mutex & idxMutex;
File::Class & idx;
uint32_t resourceListOffset, resourcesCount;
string name;
QAtomicInt isCancelled;
QSemaphore hasExited;
public:
BglResourceRequest( Mutex & idxMutex_,
File::Class & idx_,
uint32_t resourceListOffset_,
uint32_t resourcesCount_,
string const & name_ ):
idxMutex( idxMutex_ ),
idx( idx_ ),
resourceListOffset( resourceListOffset_ ),
resourcesCount( resourcesCount_ ),
name( name_ )
{
QThreadPool::globalInstance()->start(
new BglResourceRequestRunnable( *this, hasExited ) );
}