source: branches/vendor/trolltech/qt/current/tools/linguist/shared/simtexth.h @ 2

Last change on this file since 2 was 2, checked in by Dmitry A. Kuminov, 13 years ago

Initially imported qt-all-opensource-src-4.5.1 from Trolltech.

File size: 3.2 KB
Line 
1/****************************************************************************
2**
3** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
4** Contact: Qt Software Information (qt-info@nokia.com)
5**
6** This file is part of the Qt Linguist of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:LGPL$
9** Commercial Usage
10** Licensees holding valid Qt Commercial licenses may use this file in
11** accordance with the Qt Commercial License Agreement provided with the
12** Software or, alternatively, in accordance with the terms contained in
13** a written agreement between you and Nokia.
14**
15** GNU Lesser General Public License Usage
16** Alternatively, this file may be used under the terms of the GNU Lesser
17** General Public License version 2.1 as published by the Free Software
18** Foundation and appearing in the file LICENSE.LGPL included in the
19** packaging of this file.  Please review the following information to
20** ensure the GNU Lesser General Public License version 2.1 requirements
21** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
22**
23** In addition, as a special exception, Nokia gives you certain
24** additional rights. These rights are described in the Nokia Qt LGPL
25** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
26** package.
27**
28** GNU General Public License Usage
29** Alternatively, this file may be used under the terms of the GNU
30** General Public License version 3.0 as published by the Free Software
31** Foundation and appearing in the file LICENSE.GPL included in the
32** packaging of this file.  Please review the following information to
33** ensure the GNU General Public License version 3.0 requirements will be
34** met: http://www.gnu.org/copyleft/gpl.html.
35**
36** If you are unsure which license is appropriate for your use, please
37** contact the sales department at qt-sales@nokia.com.
38** $QT_END_LICENSE$
39**
40****************************************************************************/
41
42#ifndef SIMTEXTH_H
43#define SIMTEXTH_H
44
45const int textSimilarityThreshold = 190;
46
47#include <QString>
48#include <QList>
49
50QT_BEGIN_NAMESPACE
51
52class Translator;
53
54struct Candidate
55{
56    Candidate() {}
57    Candidate(const QString& source0, const QString &target0)
58        : source(source0), target(target0)
59    {}
60
61    QString source;
62    QString target;
63};
64
65inline bool operator==( const Candidate& c, const Candidate& d ) {
66    return c.target == d.target && c.source == d.source;
67}
68inline bool operator!=( const Candidate& c, const Candidate& d ) {
69    return !operator==( c, d );
70}
71
72typedef QList<Candidate> CandidateList;
73
74struct CoMatrix;
75/**
76 * This class is more efficient for searching through a large array of candidate strings, since we only
77 * have to construct the CoMatrix for the \a stringToMatch once,
78 * after that we just call getSimilarityScore(strCandidate).
79 * \sa getSimilarityScore
80 */
81class StringSimilarityMatcher {
82public:
83    StringSimilarityMatcher(const QString &stringToMatch);
84    ~StringSimilarityMatcher();
85    int getSimilarityScore(const QString &strCandidate);
86
87private:
88    CoMatrix *m_cm;
89    int m_length;
90};
91
92int getSimilarityScore(const QString &str1, const QString &str2);
93
94CandidateList similarTextHeuristicCandidates( const Translator *tor,
95                                              const QString &text,
96                                              int maxCandidates );
97
98QT_END_NAMESPACE
99
100#endif
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