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epwing.cc
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epwing.cc
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/* This file is (c) 2014 Abs62
* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
#include "epwing_book.hh"
#include "epwing.hh"
#include <QByteArray>
#include <QDir>
#include <QRunnable>
#include <QSemaphore>
#include <map>
#include <set>
#include <string>
#include "btreeidx.hh"
#include "folding.hh"
#include "gddebug.hh"
#include "fsencoding.hh"
#include "chunkedstorage.hh"
#include "wstring.hh"
#include "wstring_qt.hh"
#include "utf8.hh"
#include "filetype.hh"
#include "ftshelpers.hh"
#include "btreeidx.hh"
namespace Epwing {
using BtreeIndexing::WordArticleLink;
using BtreeIndexing::IndexedWords;
using BtreeIndexing::IndexInfo;
using std::map;
using std::multimap;
using std::vector;
using std::set;
using std::pair;
using gd::wstring;
namespace {
#pragma pack( push, 1 )
enum
{
Signature = 0x58575045, // EPWX on little-endian, XWPE on big-endian
CurrentFormatVersion = 5 + BtreeIndexing::FormatVersion + Folding::Version
};
struct IdxHeader
{
quint32 signature; // First comes the signature, EPWX
quint32 formatVersion; // File format version (CurrentFormatVersion)
quint32 chunksOffset; // The offset to chunks' storage
quint32 indexBtreeMaxElements; // Two fields from IndexInfo
quint32 indexRootOffset;
quint32 wordCount;
quint32 articleCount;
quint32 nameSize;
quint32 langFrom; // Source language
quint32 langTo; // Target language
}
#ifndef _MSC_VER
__attribute__((packed))
#endif
;
#pragma pack( pop )
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;
}
class EpwingDictionary: public BtreeIndexing::BtreeDictionary
{
Mutex idxMutex;
File::Class idx;
IdxHeader idxHeader;
string bookName;
ChunkedStorage::Reader chunks;
Epwing::Book::EpwingBook eBook;
QString cacheDirectory;
public:
EpwingDictionary( string const & id, string const & indexFile,
vector< string > const & dictionaryFiles,
int subBook );
~EpwingDictionary();
virtual string getName() throw()
{ return bookName; }
virtual map< Dictionary::Property, string > getProperties() throw()
{ return map< Dictionary::Property, string >(); }
virtual unsigned long getArticleCount() throw()
{ return idxHeader.articleCount; }
virtual unsigned long getWordCount() throw()
{ return idxHeader.wordCount; }
inline virtual quint32 getLangFrom() const
{ return idxHeader.langFrom; }
inline virtual quint32 getLangTo() const
{ return idxHeader.langTo; }
virtual QString const& getDescription();
virtual sptr< Dictionary::DataRequest > getArticle( wstring const &,
vector< wstring > const & alts,
wstring const & )
throw( std::exception );
virtual sptr< Dictionary::DataRequest > getResource( string const & name )
throw( std::exception );
virtual sptr< Dictionary::DataRequest > getSearchResults( QString const & searchString,
int searchMode, bool matchCase,
int distanceBetweenWords,
int maxResults );
virtual void getArticleText( uint32_t articleAddress, QString & headword, QString & text );
virtual void makeFTSIndex(QAtomicInt & isCancelled, bool firstIteration );
virtual void setFTSParameters( Config::FullTextSearch const & fts )
{
if( ensureInitDone().size() )
return;
can_FTS = fts.enabled
&& !fts.disabledTypes.contains( "EPWING", Qt::CaseInsensitive )
&& ( fts.maxDictionarySize == 0 || getArticleCount() <= fts.maxDictionarySize );
}
static int japaneseWriting( gd::wchar ch );
static bool isSign( gd::wchar ch );
static bool isJapanesePunctiation( gd::wchar ch );
virtual sptr< Dictionary::WordSearchRequest > prefixMatch( wstring const &,
unsigned long )
throw( std::exception );
virtual sptr< Dictionary::WordSearchRequest > stemmedMatch( wstring const &,
unsigned minLength,
unsigned maxSuffixVariation,
unsigned long maxResults )
throw( std::exception );
protected:
void loadIcon() throw();
private:
/// Loads the article.
void loadArticle( quint32 address, string & articleHeadword,
string & articleText, int & articlePage, int & articleOffset );
void loadArticle( int articlePage, int articleOffset, string & articleHeadword,
string & articleText );
void createCacheDirectory();
void removeDirectory( QString const & directory );
QString const & getImagesCacheDir()
{ return eBook.getImagesCacheDir(); }
QString const & getSoundsCacheDir()
{ return eBook.getSoundsCacheDir(); }
QString const & getMoviesCacheDir()
{ return eBook.getMoviesCacheDir(); }
friend class EpwingArticleRequest;
friend class EpwingResourceRequest;
friend class EpwingWordSearchRequest;
};
EpwingDictionary::EpwingDictionary( string const & id,
string const & indexFile,
vector< string > const & dictionaryFiles,
int subBook ):
BtreeDictionary( id, dictionaryFiles ),
idx( indexFile, "rb" ),
idxHeader( idx.read< IdxHeader >() ),
chunks( idx, idxHeader.chunksOffset )
{
vector< char > data( idxHeader.nameSize );
idx.seek( sizeof( idxHeader ) );
idx.read( &data.front(), idxHeader.nameSize );
bookName = string( &data.front(), idxHeader.nameSize );
// Initialize eBook
eBook.setBook( dictionaryFiles[ 0 ] );
eBook.setSubBook( subBook );
// Initialize the index
openIndex( IndexInfo( idxHeader.indexBtreeMaxElements,
idxHeader.indexRootOffset ),
idx, idxMutex );
eBook.setDictID( getId() );
cacheDirectory = QDir::tempPath() + QDir::separator()
+ QString::fromUtf8( getId().c_str() )
+ ".cache";
eBook.setCacheDirectory( cacheDirectory );
// Full-text search parameters
can_FTS = true;
ftsIdxName = indexFile + "_FTS";
if( !Dictionary::needToRebuildIndex( dictionaryFiles, ftsIdxName )
&& !FtsHelpers::ftsIndexIsOldOrBad( ftsIdxName, this ) )
FTS_index_completed.ref();
}
EpwingDictionary::~EpwingDictionary()
{
removeDirectory( cacheDirectory );
}
void EpwingDictionary::loadIcon() throw()
{
if ( dictionaryIconLoaded )
return;
QString fileName = FsEncoding::decode( getDictionaryFilenames()[ 0 ].c_str() )
+ QDir::separator()
+ eBook.getCurrentSubBookDirectory() + ".";
if( !fileName.isEmpty() )
loadIconFromFile( fileName );
if( dictionaryIcon.isNull() )
{
// Load failed -- use default icons
dictionaryNativeIcon = dictionaryIcon = QIcon(":/icons/icon32_epwing.png");
}
dictionaryIconLoaded = true;
}
void EpwingDictionary::removeDirectory( QString const & directory )
{
QDir dir( directory );
Q_FOREACH( QFileInfo info, dir.entryInfoList( QDir::NoDotAndDotDot
| QDir::AllDirs
| QDir::Files,
QDir::DirsFirst))
{
if( info.isDir() )
removeDirectory( info.absoluteFilePath() );
else
QFile::remove( info.absoluteFilePath() );
}
dir.rmdir( directory );
}
void EpwingDictionary::loadArticle( quint32 address,
string & articleHeadword,
string & articleText,
int & articlePage,
int & articleOffset )
{
vector< char > chunk;
char * articleProps;
{
Mutex::Lock _( idxMutex );
articleProps = chunks.getBlock( address, chunk );
}
memcpy( &articlePage, articleProps, sizeof( articlePage ) );
memcpy( &articleOffset, articleProps + sizeof( articlePage ),
sizeof( articleOffset ) );
QString headword, text;
try
{
Mutex::Lock _( eBook.getLibMutex() );
eBook.getArticle( headword, text, articlePage, articleOffset, false );
}
catch( std::exception & e )
{
text = QString( "Article reading error: %1")
.arg( QString::fromUtf8( e.what() ) );
}
articleHeadword = string( headword.toUtf8().data() );
articleText = string( text.toUtf8().data() );
string prefix( "<div class=\"epwing_text\">" );
articleText = prefix + articleText + "</div>";
}
void EpwingDictionary::loadArticle( int articlePage,
int articleOffset,
string & articleHeadword,
string & articleText )
{
QString headword, text;
try
{
Mutex::Lock _( eBook.getLibMutex() );
eBook.getArticle( headword, text, articlePage, articleOffset, false );
}
catch( std::exception & e )
{
text = QString( "Article reading error: %1")
.arg( QString::fromUtf8( e.what() ) );
}
articleHeadword = string( headword.toUtf8().data() );
articleText = string( text.toUtf8().data() );
string prefix( "<div class=\"epwing_text\">" );
articleText = prefix + articleText + "</div>";
}
QString const& EpwingDictionary::getDescription()
{
if( !dictionaryDescription.isEmpty() )
return dictionaryDescription;
dictionaryDescription = "NONE";
QString str;
{
Mutex::Lock _( eBook.getLibMutex() );
str = eBook.copyright();
}
if( !str.isEmpty() )
dictionaryDescription = str;
return dictionaryDescription;
}
void EpwingDictionary::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( "Epwing: 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( "Epwing: Failed building full-text search index for \"%s\", reason: %s\n", getName().c_str(), ex.what() );
QFile::remove( FsEncoding::decode( ftsIdxName.c_str() ) );
}
}
void EpwingDictionary::getArticleText( uint32_t articleAddress, QString & headword, QString & text )
{
headword.clear();
text.clear();
vector< char > chunk;
char * articleProps;
{
Mutex::Lock _( idxMutex );
articleProps = chunks.getBlock( articleAddress, chunk );
}
uint32_t articlePage, articleOffset;
memcpy( &articlePage, articleProps, sizeof( articlePage ) );
memcpy( &articleOffset, articleProps + sizeof( articlePage ),
sizeof( articleOffset ) );
try
{
Mutex::Lock _( eBook.getLibMutex() );
eBook.getArticle( headword, text, articlePage, articleOffset, true );
}
catch( std::exception & e )
{
text = QString( "Article reading error: %1")
.arg( QString::fromUtf8( e.what() ) );
}
}
/// EpwingDictionary::getArticle()
class EpwingArticleRequest;
class EpwingArticleRequestRunnable: public QRunnable
{
EpwingArticleRequest & r;
QSemaphore & hasExited;
public:
EpwingArticleRequestRunnable( EpwingArticleRequest & r_,
QSemaphore & hasExited_ ): r( r_ ),
hasExited( hasExited_ )
{}
~EpwingArticleRequestRunnable()
{
hasExited.release();
}
virtual void run();
};
class EpwingArticleRequest: public Dictionary::DataRequest
{
friend class EpwingArticleRequestRunnable;
wstring word;
vector< wstring > alts;
EpwingDictionary & dict;
QAtomicInt isCancelled;
QSemaphore hasExited;
public:
EpwingArticleRequest( wstring const & word_,
vector< wstring > const & alts_,
EpwingDictionary & dict_ ):
word( word_ ), alts( alts_ ), dict( dict_ )
{
QThreadPool::globalInstance()->start(
new EpwingArticleRequestRunnable( *this, hasExited ) );
}
void run(); // Run from another thread by EpwingArticleRequestRunnable
virtual void cancel()
{
isCancelled.ref();
}
~EpwingArticleRequest()
{
isCancelled.ref();
hasExited.acquire();
}
};
void EpwingArticleRequestRunnable::run()
{
r.run();
}
void EpwingArticleRequest::run()
{
if ( isCancelled )
{
finish();
return;
}
vector< WordArticleLink > chain = dict.findArticles( word );
for( unsigned x = 0; x < alts.size(); ++x )
{
/// Make an additional query for each alt
vector< WordArticleLink > altChain = dict.findArticles( alts[ x ] );
chain.insert( chain.end(), altChain.begin(), altChain.end() );
}
multimap< wstring, pair< string, string > > mainArticles, alternateArticles;
set< quint32 > articlesIncluded; // Some synonims make it that the articles
// appear several times. We combat this
// by only allowing them to appear once.
wstring wordCaseFolded = Folding::applySimpleCaseOnly( word );
QVector< int > pages, offsets;
for( unsigned x = 0; x < chain.size(); ++x )
{
if ( isCancelled )
{
finish();
return;
}
if ( articlesIncluded.find( chain[ x ].articleOffset ) != articlesIncluded.end() )
continue; // We already have this article in the body.
// Now grab that article
string headword, articleText;
int articlePage, articleOffset;
try
{
dict.loadArticle( chain[ x ].articleOffset, headword, articleText,
articlePage, articleOffset );
}
catch(...)
{
}
pages.append( articlePage );
offsets.append( articleOffset );
// 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 comparison here.
wstring headwordStripped =
Folding::applySimpleCaseOnly( Utf8::decode( headword ) );
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 >( headword, articleText ) ) );
articlesIncluded.insert( chain[ x ].articleOffset );
}
// Also try to find word in the built-in dictionary index
try
{
string headword, articleText;
QVector< int > pg, off;
{
Mutex::Lock _( dict.eBook.getLibMutex() );
dict.eBook.getArticlePos( gd::toQString( word ), pg, off );
}
for( int i = 0; i < pg.size(); i++ )
{
bool already = false;
for( int n = 0; n < pages.size(); n++ )
{
if( pages.at( n ) == pg.at( i )
&& abs( offsets.at( n ) - off.at( i ) ) <= 4 )
{
already = true;
break;
}
}
if( !already )
{
dict.loadArticle( pg.at( i ), off.at( i ), headword, articleText );
mainArticles.insert( pair< wstring, pair< string, string > >(
Folding::applySimpleCaseOnly( Utf8::decode( headword ) ),
pair< string, string >( headword, articleText ) ) );
pages.append( pg.at( i ) );
offsets.append( off.at( i ) );
}
}
}
catch(...)
{
}
if ( mainArticles.empty() && alternateArticles.empty() )
{
// No such word
finish();
return;
}
string result = "<span class=\"epwing_article\">";
multimap< wstring, pair< string, string > >::const_iterator i;
for( i = mainArticles.begin(); i != mainArticles.end(); ++i )
{
result += "<h3>";
result += i->second.first;
result += "</h3>";
result += i->second.second;
}
for( i = alternateArticles.begin(); i != alternateArticles.end(); ++i )
{
result += "<h3>";
result += i->second.first;
result += "</h3>";
result += i->second.second;
}
result += "</span>";
Mutex::Lock _( dataMutex );
data.resize( result.size() );
memcpy( &data.front(), result.data(), result.size() );
hasAnyData = true;
finish();
}
sptr< Dictionary::DataRequest > EpwingDictionary::getArticle( wstring const & word,
vector< wstring > const & alts,
wstring const & )
throw( std::exception )
{
return new EpwingArticleRequest( word, alts, *this );
}
//// EpwingDictionary::getResource()
class EpwingResourceRequest;
class EpwingResourceRequestRunnable: public QRunnable
{
EpwingResourceRequest & r;
QSemaphore & hasExited;
public:
EpwingResourceRequestRunnable( EpwingResourceRequest & r_,
QSemaphore & hasExited_ ): r( r_ ),
hasExited( hasExited_ )
{}
~EpwingResourceRequestRunnable()
{
hasExited.release();
}
virtual void run();
};
class EpwingResourceRequest: public Dictionary::DataRequest
{
friend class EpwingResourceRequestRunnable;
EpwingDictionary & dict;
string resourceName;
QAtomicInt isCancelled;
QSemaphore hasExited;
public:
EpwingResourceRequest( EpwingDictionary & dict_,
string const & resourceName_ ):
dict( dict_ ),
resourceName( resourceName_ )
{
QThreadPool::globalInstance()->start(
new EpwingResourceRequestRunnable( *this, hasExited ) );
}
void run(); // Run from another thread by EpwingResourceRequestRunnable
virtual void cancel()
{
isCancelled.ref();
}
~EpwingResourceRequest()
{
isCancelled.ref();
hasExited.acquire();
}
};
void EpwingResourceRequestRunnable::run()
{
r.run();
}
void EpwingResourceRequest::run()
{
// Some runnables linger enough that they are cancelled before they start
if ( isCancelled )
{
finish();
return;
}
QString cacheDir;
{
Mutex::Lock _( dict.eBook.getLibMutex() );
if( Filetype::isNameOfPicture( resourceName ) )
cacheDir = dict.getImagesCacheDir();
else
if( Filetype::isNameOfSound( resourceName ) )
cacheDir = dict.getSoundsCacheDir();
else
if( Filetype::isNameOfVideo( resourceName ) )
cacheDir = dict.getMoviesCacheDir();
}
try
{
if( cacheDir.isEmpty() )
{
finish();
return;
}
QString fullName = cacheDir + QDir::separator()
+ FsEncoding::decode( resourceName.c_str() );
QFile f( fullName );
if( f.open( QFile::ReadOnly ) )
{
QByteArray buffer = f.readAll();
Mutex::Lock _( dataMutex );
data.resize( buffer.size() );
memcpy( &data.front(), buffer.data(), data.size() );
hasAnyData = true;
}
}
catch( std::exception &ex )
{
gdWarning( "Epwing: Failed loading resource \"%s\" for \"%s\", reason: %s\n",
resourceName.c_str(), dict.getName().c_str(), ex.what() );
// Resource not loaded -- we don't set the hasAnyData flag then
}
finish();
}
sptr< Dictionary::DataRequest > EpwingDictionary::getResource( string const & name )
throw( std::exception )
{
return new EpwingResourceRequest( *this, name );
}
sptr< Dictionary::DataRequest > EpwingDictionary::getSearchResults( QString const & searchString,
int searchMode, bool matchCase,
int distanceBetweenWords,
int maxResults )
{
return new FtsHelpers::FTSResultsRequest( *this, searchString,searchMode, matchCase, distanceBetweenWords, maxResults );
}
int EpwingDictionary::japaneseWriting( gd::wchar ch )
{
if( ( ch >= 0x30A0 && ch <= 0x30FF )
|| ( ch >= 0x31F0 && ch <= 0x31FF )
|| ( ch >= 0x3200 && ch <= 0x32FF )
|| ( ch >= 0xFF00 && ch <= 0xFFEF )
|| ( ch == 0x1B000 ) )
return 1; // Katakana
else
if( ( ch >= 0x3040 && ch <= 0x309F )
|| ( ch == 0x1B001 ) )
return 2; // Hiragana
else
if( ( ch >= 0x4E00 && ch <= 0x9FAF )
|| ( ch >= 0x3400 && ch <= 0x4DBF ) )
return 3; // Kanji
return 0;
}
bool EpwingDictionary::isSign( gd::wchar ch )
{
switch( ch )
{
case 0x002B: // PLUS SIGN
case 0x003C: // LESS-THAN SIGN
case 0x003D: // EQUALS SIGN
case 0x003E: // GREATER-THAN SIGN
case 0x00AC: // NOT SIGN
case 0xFF0B: // FULLWIDTH PLUS SIGN
case 0xFF1C: // FULLWIDTH LESS-THAN SIGN
case 0xFF1D: // FULLWIDTH EQUALS SIGN
case 0xFF1E: // FULLWIDTH GREATER-THAN SIGN
case 0xFFE2: // FULLWIDTH NOT SIGN
return true;
default:
return false;
}
}
bool EpwingDictionary::isJapanesePunctiation( gd::wchar ch )
{
return ch >= 0x3000 && ch <= 0x303F;
}
class EpwingWordSearchRequest;
class EpwingWordSearchRunnable: public QRunnable
{
EpwingWordSearchRequest & r;
QSemaphore & hasExited;
public:
EpwingWordSearchRunnable( EpwingWordSearchRequest & r_,
QSemaphore & hasExited_ ): r( r_ ),
hasExited( hasExited_ )
{}
~EpwingWordSearchRunnable()
{
hasExited.release();
}
virtual void run();
};
class EpwingWordSearchRequest: public BtreeIndexing::BtreeWordSearchRequest
{
friend class EpwingWordSearchRunnable;
EpwingDictionary & edict;
public:
EpwingWordSearchRequest( EpwingDictionary & dict_,
wstring const & str_,
unsigned minLength_,
int maxSuffixVariation_,
bool allowMiddleMatches_,
unsigned long maxResults_ ):
BtreeWordSearchRequest( dict_, str_, minLength_, maxSuffixVariation_, allowMiddleMatches_, maxResults_, false ),
edict( dict_ )
{
QThreadPool::globalInstance()->start(
new EpwingWordSearchRunnable( *this, hasExited ) );
}
virtual void findMatches();
};
void EpwingWordSearchRunnable::run()
{
r.run();
}
void EpwingWordSearchRequest::findMatches()
{
BtreeWordSearchRequest::findMatches();
if ( isCancelled )
{
finish();
return;
}
while( matches.size() < maxResults )
{
QVector< QString > headwords;
{
Mutex::Lock _( edict.eBook.getLibMutex() );
if( isCancelled )
break;
if( !edict.eBook.getMatches( gd::toQString( str ), headwords ) )
break;
}
Mutex::Lock _( dataMutex );
for( int i = 0; i < headwords.size(); i++ )
addMatch( gd::toWString( headwords.at( i ) ) );
break;
}
finish();
}
sptr< Dictionary::WordSearchRequest > EpwingDictionary::prefixMatch(
wstring const & str, unsigned long maxResults )
throw( std::exception )
{
return new EpwingWordSearchRequest( *this, str, 0, -1, true, maxResults );
}
sptr< Dictionary::WordSearchRequest > EpwingDictionary::stemmedMatch(
wstring const & str, unsigned minLength, unsigned maxSuffixVariation,
unsigned long maxResults )
throw( std::exception )
{
return new EpwingWordSearchRequest( *this, str, minLength, (int)maxSuffixVariation,
false, maxResults );
}
} // anonymous namespace
vector< sptr< Dictionary::Class > > makeDictionaries(
vector< string > const & fileNames,
string const & indicesDir,
Dictionary::Initializing & initializing )
throw( std::exception )
{
vector< sptr< Dictionary::Class > > dictionaries;
vector< string > dictFiles;
QByteArray catName;
catName += QDir::separator();
catName += "catalogs";
for( vector< string >::const_iterator i = fileNames.begin(); i != fileNames.end();
++i )
{
// Skip files other than "catalogs" to speed up the scanning
if ( i->size() < (unsigned)catName.size() ||
strcasecmp( i->c_str() + ( i->size() - catName.size() ), catName.data() ) != 0 )
continue;
int ndir = i->size() - catName.size();
if( ndir < 1 )
ndir = 1;
string mainDirectory = i->substr( 0, ndir );
Epwing::Book::EpwingBook dict;
int subBooksNumber = dict.setBook( mainDirectory );
for( int sb = 0; sb < subBooksNumber; sb++ )
{
QString dir;
try
{
dictFiles.clear();
dictFiles.push_back( mainDirectory );
dictFiles.push_back( *i );
dict.setSubBook( sb );
dir = FsEncoding::decode( mainDirectory.c_str() )
+ FsEncoding::separator()
+ dict.getCurrentSubBookDirectory();
Epwing::Book::EpwingBook::collectFilenames( dir, dictFiles );
QString fontSubName = FsEncoding::decode( mainDirectory.c_str() )
+ QDir::separator()
+ "afonts_" + QString::number( sb );
QFileInfo info( fontSubName );
if( info.exists() && info.isFile() )
dictFiles.push_back( FsEncoding::encode( fontSubName ) );
// Check if we need to rebuid the index
string dictId = Dictionary::makeDictionaryId( dictFiles );
string indexFile = indicesDir + dictId;