Codetable.cpp

/* QtSpell - Spell checking for Qt text widgets.
 * Copyright (c) 2014 Sandro Mani
 *
 *    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.
 *
 *    This program is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *    GNU General Public License for more details.
 *
 *    You should have received a copy of the GNU General Public License along
 *    with this program; if not, write to the Free Software Foundation, Inc.,
 *    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
#include "Codetable.hpp"
#include <QCoreApplication>
#include <QDir>
#include <QFile>
#include <QXmlStreamReader>
#include <libintl.h>
 
#define ISO_639_DOMAIN  "iso_639"
#define ISO_3166_DOMAIN "iso_3166"
 
namespace QtSpell {
 
Codetable* Codetable::instance()
{
        static Codetable codetable;
        return &codetable;
}
 
void Codetable::lookup(const QString &language_code, QString &language_name, QString &country_name, QString& extra) const
{
        QStringList parts = language_code.split("_");
        language_name = language_code;
        country_name = "";
        if(parts.isEmpty()) {
                return;
        }
        if(parts.size() >= 1) {
                language_name = m_languageTable.contains(parts[0]) ? m_languageTable.value(parts[0]) : parts[0];
        }
        if(parts.size() >= 2) {
                country_name = m_countryTable.contains(parts[1]) ? m_countryTable.value(parts[1]) : parts[1];
        }
        if(parts.size() > 2) {
                extra = QStringList(parts.mid(2)).join("_");
        }
}
 
Codetable::Codetable()
{
#ifdef Q_OS_WIN32
        QDir dataDir = QDir(QString("%1/../share").arg(QCoreApplication::applicationDirPath()));
#else
        QDir dataDir = QDir(ISO_CODES_PREFIX "/share").absolutePath();
#endif
 
        bindtextdomain(ISO_639_DOMAIN, dataDir.absoluteFilePath("locale").toLocal8Bit().data());
        bind_textdomain_codeset(ISO_639_DOMAIN, "UTF-8");
 
        bindtextdomain(ISO_3166_DOMAIN, dataDir.absoluteFilePath("locale").toLocal8Bit().data());
        bind_textdomain_codeset(ISO_3166_DOMAIN, "UTF-8");
 
        parse(dataDir, "iso_639.xml", parseIso639Elements, m_languageTable);
        parse(dataDir, "iso_3166.xml", parseIso3166Elements, m_countryTable);
}
 
void Codetable::parseIso639Elements(const QXmlStreamReader &xml, QMap<QString, QString> &table)
{
        if(xml.name() == "iso_639_entry" ){
                QString name = xml.attributes().value("name").toString();
                QString code = xml.attributes().value("iso_639_1_code").toString();
                if(!name.isEmpty() && !code.isEmpty()){
                        name = QString::fromUtf8(dgettext(ISO_639_DOMAIN, name.toLatin1().data()));
                        table.insert(code, name);
                }
        }
}
 
void Codetable::parseIso3166Elements(const QXmlStreamReader &xml, QMap<QString, QString> &table)
{
        if(xml.name() == "iso_3166_entry" ){
                QString name = xml.attributes().value("name").toString();
                QString code = xml.attributes().value("alpha_2_code").toString();
                if(!name.isEmpty() && !code.isEmpty()){
                        name = QString::fromUtf8(dgettext(ISO_3166_DOMAIN, name.toLatin1().data()));;
                        table.insert(code, name);
                }
        }
}
 
void Codetable::parse(const QDir& dataDir, const QString& basename, const parser_t& parser, QMap<QString, QString>& table)
{
        QString filename = QDir(QDir(dataDir.filePath("xml")).filePath("iso-codes")).absoluteFilePath(basename);
        QFile file(filename);
        if(!file.open(QIODevice::ReadOnly)){
                qWarning("Failed to open %s for reading", file.fileName().toLatin1().data());
                return;
        }
 
        QXmlStreamReader xml(&file);
        while(!xml.atEnd() && !xml.hasError()){
                if(xml.readNext() == QXmlStreamReader::StartElement){
                        parser(xml, table);
                }
        }
}
 
} // QtSpell