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/*
* Copyright (C) 2011 Nokia <ivan.frade@nokia.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include <MCharsetDetector>
#include <MCharsetMatch>
#include <glib.h>
#include <libtracker-common/tracker-locale.h>
#include "tracker-encoding-meegotouch.h"
/*
* See http://apidocs.meego.com/git-tip/mtf/class_m_charset_detector.html
*/
gchar *
tracker_encoding_guess_meegotouch (const gchar *buffer,
gsize size)
{
/* Initialize detector */
MCharsetDetector detector ((const char *)buffer, (int)size);
gchar *locale;
gchar *encoding = NULL;
if (detector.hasError ()) {
g_warning ("Charset detector error when creating: %s",
detector.errorString ().toUtf8 (). data ());
return NULL;
}
locale = tracker_locale_get (TRACKER_LOCALE_LANGUAGE);
detector.setDeclaredLocale (locale);
MCharsetMatch bestMatch = detector.detect ();
if (detector.hasError ()) {
g_warning ("Charset detector error when detecting: %s",
detector.errorString ().toUtf8 (). data ());
g_free (locale);
return NULL;
}
if (bestMatch.confidence () > 30) {
encoding = g_strdup (bestMatch.name ().toUtf8 ().data ());
#if 0
QList<MCharsetMatch> mCharsetMatchList = detector.detectAll();
if (detector.hasError ()) {
g_warning ("Charset detector error when detecting all: %s",
detector.errorString ().toUtf8 (). data ());
}
g_debug ("Detecting all charsets...");
for (gint i = 0; i < mCharsetMatchList.size (); ++i) {
g_debug (" Charset '%s' with %d%% confidence...",
mCharsetMatchList[i].name (). toUtf8 ().data (),
mCharsetMatchList[i].confidence ());
}
#endif
g_debug ("Guessing charset as '%s' with %d%% confidence",
encoding, bestMatch.confidence ());
} else {
g_debug ("Ignoring charset as '%s' with %d%% (< 30%%) confidence",
bestMatch.name ().toUtf8 ().data (),
bestMatch.confidence ());
}
g_free (locale);
return encoding;
}
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