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simtexth.h

/****************************************************************************
**
** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
**
** This file is part of the Qt Linguist of the Qt Toolkit.
**
** This file may be used under the terms of the GNU General Public
** License version 2.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of
** this file.  Please review the following information to ensure GNU
** General Public Licensing requirements will be met:
** http://www.trolltech.com/products/qt/opensource.html
**
** If you are unsure which license is appropriate for your use, please
** review the following information:
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****************************************************************************/

#ifndef SIMTEXTH_H
#define SIMTEXTH_H

const int textSimilarityThreshold = 190;

#include <QString>
#include <QList>

class MetaTranslator;

struct Candidate {
    QString source;
    QString target;

    Candidate() { }
    Candidate( const QString& source0, const QString& target0 )
      : source( source0 ), target( target0 ) { }
};

inline bool operator==( const Candidate& c, const Candidate& d ) {
    return c.target == d.target && c.source == d.source;
}
inline bool operator!=( const Candidate& c, const Candidate& d ) {
    return !operator==( c, d );
}

typedef QList<Candidate> CandidateList;

struct CoMatrix;
/**
 * This class is more efficient for searching through a large array of candidate strings, since we only
 * have to construct the CoMatrix for the \a stringToMatch once, 
 * after that we just call getSimilarityScore(strCandidate).
 * \sa getSimilarityScore
 */
00059 class StringSimilarityMatcher {
public:
    StringSimilarityMatcher(const QString &stringToMatch);
    ~StringSimilarityMatcher();
    int getSimilarityScore(const QString &strCandidate);

private:
    CoMatrix *m_cm;
    int m_length;
};

int getSimilarityScore(const QString &str1, const char* str2);

CandidateList similarTextHeuristicCandidates( const MetaTranslator *tor,
                                    const char *text,
                                    int maxCandidates );

#endif

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