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Diffstat (limited to 'src/kchmsearchengine_impl.h')
| -rw-r--r-- | src/kchmsearchengine_impl.h | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/src/kchmsearchengine_impl.h b/src/kchmsearchengine_impl.h new file mode 100644 index 0000000..b8a9fe6 --- /dev/null +++ b/src/kchmsearchengine_impl.h @@ -0,0 +1,151 @@ +/*************************************************************************** + * Copyright (C) 2004-2007 by Georgy Yunaev, gyunaev@ulduzsoft.com * + * Portions Copyright (C) 2000-2005 Trolltech AS. * + * Please do not use email address above for bug reports; see * + * the README file * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License as published by * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + * This program is distributed in the hope that it will be useful, * + * but WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * + * GNU General Public License for more details. * + * * + * You should have received a copy of the GNU General Public License * + * along with this program; if not, write to the * + * Free Software Foundation, Inc., * + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * + ***************************************************************************/ + +#ifndef QASSISTANTINDEX_H +#define QASSISTANTINDEX_H + +#include <qstringlist.h> +#include <qdict.h> +#include <qdatastream.h> +#include <qobject.h> + +namespace QtAs +{ + +struct Document +{ + Document( int d, int f ) : docNumber( d ), frequency( f ) {} + Document() : docNumber( -1 ), frequency( 0 ) {} + bool operator==( const Document &doc ) const + { + return docNumber == doc.docNumber; + } + + bool operator<( const Document &doc ) const + { + return frequency > doc.frequency; + } + + bool operator<=( const Document &doc ) const + { + return frequency >= doc.frequency; + } + + bool operator>( const Document &doc ) const + { + return frequency < doc.frequency; + } + + Q_INT16 docNumber; + Q_INT16 frequency; +}; + +QDataStream &operator>>( QDataStream &s, Document &l ); +QDataStream &operator<<( QDataStream &s, const Document &l ); + +class Index : public QObject +{ + Q_OBJECT + public: + struct Entry + { + Entry( int d ) { documents.append( Document( d, 1 ) ); } + Entry( QValueList<Document> l ) : documents( l ) {} + QValueList<Document> documents; + }; + + struct PosEntry + { + PosEntry( int p ) { positions.append( p ); } + QValueList<uint> positions; + }; + + Index( const QString &dp, const QString &hp ); + Index( const QStringList &dl, const QString &hp ); + + void writeDict(); + bool readDict(); + bool makeIndex(); + QStringList query( const QStringList&, const QStringList&, const QStringList& ); + + void setDictionaryFile( const QString& ); + void setDocListFile( const QString& ); + void setDocList( const QStringList & ); + QString getCharsSplit() const { return m_charssplit; } + QString getCharsPartOfWord() const { return m_charsword; } + + signals: + void indexingProgress( int ); + + public slots: + void setLastWinClosed(); + + private: + void setupDocumentList(); + bool parseDocumentToStringlist( const QString& filename, QStringList& tokenlist ); + void parseDocument( const QString& filename, int docnum ); + void insertInDict( const QString&, int ); + + void writeDocumentList(); + bool readDocumentList(); + + QStringList getWildcardTerms( const QString& ); + QStringList split( const QString& ); + QValueList<Document> setupDummyTerm( const QStringList& ); + bool searchForPhrases( const QStringList &phrases, const QStringList &words, const QString &filename ); + + QStringList docList; + QDict<Entry> dict; + QDict<PosEntry> miniDict; + QString docPath; + QString dictFile; + QString docListFile; + bool lastWindowClosed; + + // Those characters are splitters (i.e. split the word), but added themselves into dictionary too. + // This makes the dictionary MUCH larger, but ensure that for the piece of "window->print" both + // search for "print" and "->print" will find it. + QString m_charssplit; + + // Those characters are parts of word - for example, '_' is here, and search for _debug will find only _debug. + QString m_charsword; +}; + +struct Term +{ + Term( const QString &t, int f, QValueList<Document> l ) : term( t ), frequency( f ), documents( l ) {} + + QString term; + int frequency; + QValueList<Document> documents; +}; + +class TermList : public QPtrList<Term> +{ + public: + TermList() : QPtrList<Term>() {} + int compareItems( QPtrCollection::Item i1, QPtrCollection::Item i2 ); +}; + +}; + +#endif /* QASSISTANTINDEX_H */ |