answervalidatorold.h

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/***************************************************************************
    Copyright 2007 Frederik Gladhorn <frederik.gladhorn@kdemail.net>
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   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.                                   *
 *                                                                         *
 ***************************************************************************/
#ifndef ANSWERVALIDATOROLD_H
#define ANSWERVALIDATOROLD_H

#include "testentry.h"

#include <QtCore/QString>
#include <QtCore/QPair>

class KEduVocDocument;
namespace Sonnet
{
class Speller;
}

class AnswerValidatorOld
{
public:
    AnswerValidatorOld(KEduVocDocument* doc);

    ~AnswerValidatorOld();

    bool spellcheckerAvailable();

    void setTestEntry(TestEntry* entry);

    void setLanguage(int translation);

    void checkUserAnswer(const QString& userAnswer);
    void checkUserAnswer(const QString& solution, const QString& userAnswer, const QString& language = QString());

private:
    void defaultCorrector();

    void simpleCorrector();

    int levenshteinDistance(const QString& s, const QString& t);

    bool spellcheckerMisspelled(const QString& s);

    bool spellcheckerInSuggestionList(const QString& solution, const QString& userAnswer);

    void wordCompare(const QString& solution, const QString& userWord, double& grade, TestEntry::ErrorTypes& errorTypes);

    void sentenceAnalysis();

    QList< QPair < QString, QString > > bestPairs(const QStringList& solutionWords , const QStringList& userAnswerWords);

    KEduVocDocument* m_doc;

    TestEntry* m_entry;
    int m_translation;

    QString m_solution;

    QString m_userAnswer;

    QByteArray m_d;

    Sonnet::Speller* m_speller;
    bool m_spellerAvailable;

    static const double LEVENSHTEIN_THRESHOLD;
    static const double UNRELATED_WORD_GRADE;
    static const double FALSE_FRIEND_GRADE;
    static const double SPELLING_MISTAKE_PER_LETTER_PUNISHMENT;
    static const double ACCENT_MISTAKE_PUNISHMENT;
    static const double CAPITALIZATION_MISTAKE_PUNISHMENT;
    static const double WRONG_ARTICLE_PUNISHMENT;
};

#endif