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98 lines
2.9 KiB
C++
98 lines
2.9 KiB
C++
/*
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* Copyright (C) 2008 Zack Rusin <zack@kde.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*/
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#include "globals.h"
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#include "speller.h"
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#include "filter_p.h"
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#include "loader_p.h"
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#include "settings_p.h"
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#include <kconfig.h>
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#include <QMap>
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#include <QVector>
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#include <QSet>
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#include <QDebug>
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#include <memory>
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namespace Sonnet {
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/* a very silly implementation: uses all available dictionaries
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* to check the text, the one with the least amount of misspelling
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* is likely the language we're looking for. (unless of course
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* someone is a real terrible speller).
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*/
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QString detectLanguage(const QString &sentence)
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{
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Speller speller;
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QMap<QString, QString> dicts = speller.availableDictionaries();
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QMap<QString, int> correctHits;
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QSet<QString> seenLangs;
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{
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QMap<QString, QString>::const_iterator itr = dicts.constBegin();
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for (int i = 0; i < dicts.count(); ++i) {
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seenLangs.insert(itr.value());
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++itr;
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}
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}
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QVector<Speller> spellers(seenLangs.count());
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{
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QSet<QString>::const_iterator itr = seenLangs.constBegin();
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for (int i = 0; i < spellers.count(); ++i) {
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spellers[i].setLanguage(*itr);
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++itr;
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}
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}
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Filter f;
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f.setBuffer(sentence);
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while (!f.atEnd()) {
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Word word = f.nextWord();
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if (!word.word.isEmpty()) {
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for (int i = 0; i < spellers.count(); ++i) {
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if (spellers[i].isCorrect(word.word))
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correctHits[spellers[i].language()] += 1;
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}
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}
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}
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QMap<QString, int>::const_iterator max = correctHits.constBegin();
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for (QMap<QString, int>::const_iterator itr = correctHits.constBegin();
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itr != correctHits.constEnd(); ++itr) {
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if (itr.value() > max.value())
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max = itr;
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}
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return max.key();
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}
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// SLOW!!!
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// TODO: cache this value! And then use some dbus signal to notify all apps when
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// changing the default language changes.
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QString defaultLanguageName()
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{
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Loader *loader = Loader::openLoader();
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KConfig config(QString::fromLatin1("sonnetrc"));
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loader->settings()->restore(&config);
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return loader->languageNameForCode(loader->settings()->defaultLanguage());
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}
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}
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