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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the tools applications of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 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 the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <stdio.h>
#include "pylupdate.h"
#include "simtexth.h"
// defined in numberh.cpp
extern int applyNumberHeuristic( MetaTranslator *tor );
// defined in sametexth.cpp
extern int applySameTextHeuristic( MetaTranslator *tor );
typedef QList<MetaTranslatorMessage> TML;
/*
Merges two MetaTranslator objects into the first one. The first one
is a set of source texts and translations for a previous version of
the internationalized program; the second one is a set of fresh
source texts newly extracted from the source code, without any
translation yet.
*/
void merge( const MetaTranslator *tor, const MetaTranslator *virginTor, MetaTranslator *outTor, bool noObsolete, bool verbose, const QString &filename )
{
if (verbose)
fprintf(stderr, "Updating '%s'...\n", filename.toLocal8Bit().constData());
int known = 0;
int neww = 0;
int obsoleted = 0;
int UntranslatedObsoleted = 0;
int similarTextHeuristicCount = 0;
TML all = tor->messages();
TML::Iterator it;
outTor->setLanguageCode(tor->languageCode());
outTor->setSourceLanguageCode(tor->sourceLanguageCode());
/*
The types of all the messages from the vernacular translator
are updated according to the virgin translator.
*/
for ( it = all.begin(); it != all.end(); ++it ) {
MetaTranslatorMessage::Type newType = MetaTranslatorMessage::Finished;
MetaTranslatorMessage m = *it;
// skip context comment
if ( !QByteArray(m.sourceText()).isEmpty() ) {
MetaTranslatorMessage mv = virginTor->find(m.context(), m.sourceText(), m.comment());
if ( mv.isNull() ) {
mv = virginTor->find(m.context(), m.comment(), m.fileName(), m.lineNumber());
if ( mv.isNull() ) {
// did not find it in the virgin, mark it as obsolete
newType = MetaTranslatorMessage::Obsolete;
if ( m.type() != MetaTranslatorMessage::Obsolete )
obsoleted++;
} else {
// Do not just accept it if its on the same line number, but different source text.
// Also check if the texts are more or less similar before we consider them to represent the same message...
// ### The QString() cast is evil
if (getSimilarityScore(QString(m.sourceText()), mv.sourceText()) >= textSimilarityThreshold) {
// It is just slightly modified, assume that it is the same string
m = MetaTranslatorMessage(m.context(), mv.sourceText(), m.comment(), m.fileName(), m.lineNumber(), m.translations());
m.setPlural(mv.isPlural());
// Mark it as unfinished. (Since the source text was changed it might require re-translating...)
newType = MetaTranslatorMessage::Unfinished;
++similarTextHeuristicCount;
} else {
// The virgin and vernacular sourceTexts are so different that we could not find it.
newType = MetaTranslatorMessage::Obsolete;
if ( m.type() != MetaTranslatorMessage::Obsolete )
obsoleted++;
}
neww++;
}
} else {
switch ( m.type() ) {
case MetaTranslatorMessage::Finished:
default:
if (m.isPlural() == mv.isPlural()) {
newType = MetaTranslatorMessage::Finished;
} else {
newType = MetaTranslatorMessage::Unfinished;
}
known++;
break;
case MetaTranslatorMessage::Unfinished:
newType = MetaTranslatorMessage::Unfinished;
known++;
break;
case MetaTranslatorMessage::Obsolete:
newType = MetaTranslatorMessage::Unfinished;
neww++;
}
// Always get the filename and linenumber info from the virgin Translator, in case it has changed location.
// This should also enable us to read a file that does not have the <location> element.
m.setFileName(mv.fileName());
m.setLineNumber(mv.lineNumber());
m.setPlural(mv.isPlural()); // ### why not use operator=?
}
if (newType == MetaTranslatorMessage::Obsolete && !m.isTranslated()) {
++UntranslatedObsoleted;
}
m.setType(newType);
outTor->insert(m);
}
}
/*
Messages found only in the virgin translator are added to the
vernacular translator. Among these are all the context comments.
*/
all = virginTor->messages();
for ( it = all.begin(); it != all.end(); ++it ) {
MetaTranslatorMessage mv = *it;
bool found = tor->contains(mv.context(), mv.sourceText(), mv.comment());
if (!found) {
MetaTranslatorMessage m = tor->find(mv.context(), mv.comment(), mv.fileName(), mv.lineNumber());
if (!m.isNull()) {
if (getSimilarityScore(QString(m.sourceText()), mv.sourceText()) >= textSimilarityThreshold) {
found = true;
}
} else {
found = false;
}
}
if ( !found ) {
outTor->insert( mv );
if ( !QByteArray(mv.sourceText()).isEmpty() )
neww++;
}
}
/*
The same-text heuristic handles cases where a message has an
obsolete counterpart with a different context or comment.
*/
int sameTextHeuristicCount = applySameTextHeuristic( outTor );
/*
The number heuristic handles cases where a message has an
obsolete counterpart with mostly numbers differing in the
source text.
*/
int sameNumberHeuristicCount = applyNumberHeuristic( outTor );
if ( verbose ) {
int totalFound = neww + known;
fprintf( stderr, " Found %d source text%s (%d new and %d already existing)\n",
totalFound, totalFound == 1 ? "" : "s", neww, known);
if (obsoleted) {
if (noObsolete) {
fprintf( stderr, " Removed %d obsolete entr%s\n",
obsoleted, obsoleted == 1 ? "y" : "ies" );
} else {
int total = obsoleted - UntranslatedObsoleted;
fprintf( stderr, " Kept %d obsolete translation%s\n",
total, total == 1 ? "" : "s" );
fprintf( stderr, " Removed %d obsolete untranslated entr%s\n",
UntranslatedObsoleted, UntranslatedObsoleted == 1 ? "y" : "ies" );
}
}
if (sameNumberHeuristicCount)
fprintf( stderr, " Number heuristic provided %d translation%s\n",
sameNumberHeuristicCount, sameNumberHeuristicCount == 1 ? "" : "s" );
if (sameTextHeuristicCount)
fprintf( stderr, " Same-text heuristic provided %d translation%s\n",
sameTextHeuristicCount, sameTextHeuristicCount == 1 ? "" : "s" );
if (similarTextHeuristicCount)
fprintf( stderr, " Similar-text heuristic provided %d translation%s\n",
similarTextHeuristicCount, similarTextHeuristicCount == 1 ? "" : "s" );
}
}
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