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tdemultimedia/juk/tagguesser.cpp

219 lines
6.2 KiB

/*
* tagguesser.cpp - (c) 2003 Frerich Raabe <raabe@kde.org>
*
* 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.
*/
#include "tagguesser.h"
#include <kapplication.h>
#include <kconfig.h>
#include <kdebug.h>
#include <kglobal.h>
#include <kmacroexpander.h>
FileNameScheme::FileNameScheme(const TQString &s)
: m_regExp(),
m_titleField(-1),
m_artistField(-1),
m_albumField(-1),
m_trackField(-1),
m_commentField(-1)
{
int fieldNumber = 1;
int i = s.find('%');
while (i > -1) {
switch (s[ i + 1 ]) {
case 't': m_titleField = fieldNumber++;
break;
case 'a': m_artistField = fieldNumber++;
break;
case 'A': m_albumField = fieldNumber++;
break;
case 'T': m_trackField = fieldNumber++;
break;
case 'c': m_commentField = fieldNumber++;
break;
default:
break;
}
i = s.find('%', i + 1);
}
m_regExp.setPattern(composeRegExp(s));
}
bool FileNameScheme::matches(const TQString &fileName) const
{
/* Strip extension ('.mp3') because '.' may be part of a title, and thus
* does not work as a separator.
*/
TQString stripped = fileName;
stripped.truncate(stripped.findRev('.'));
return m_regExp.exactMatch(stripped);
}
TQString FileNameScheme::title() const
{
if(m_titleField == -1)
return TQString();
return m_regExp.capturedTexts()[ m_titleField ];
}
TQString FileNameScheme::artist() const
{
if(m_artistField == -1)
return TQString();
return m_regExp.capturedTexts()[ m_artistField ];
}
TQString FileNameScheme::album() const
{
if(m_albumField == -1)
return TQString();
return m_regExp.capturedTexts()[ m_albumField ];
}
TQString FileNameScheme::track() const
{
if(m_trackField == -1)
return TQString();
return m_regExp.capturedTexts()[ m_trackField ];
}
TQString FileNameScheme::comment() const
{
if(m_commentField == -1)
return TQString();
return m_regExp.capturedTexts()[ m_commentField ];
}
TQString FileNameScheme::composeRegExp(const TQString &s) const
{
TQMap<TQChar, TQString> substitutions;
TDEConfigGroup config(TDEGlobal::config(), "TagGuesser");
substitutions[ 't' ] = config.readEntry("Title regexp", "([\\w\\s'&_,\\.]+)");
substitutions[ 'a' ] = config.readEntry("Artist regexp", "([\\w\\s'&_,\\.]+)");
substitutions[ 'A' ] = config.readEntry("Album regexp", "([\\w\\s'&_,\\.]+)");
substitutions[ 'T' ] = config.readEntry("Track regexp", "(\\d+)");
substitutions[ 'c' ] = config.readEntry("Comment regexp", "([\\w\\s_]+)");
TQString regExp = TQRegExp::escape(s.simplifyWhiteSpace());
regExp = ".*" + regExp;
regExp.replace(' ', "\\s+");
regExp = KMacroExpander::expandMacros(regExp, substitutions);
regExp += "[^/]*$";
return regExp;
}
TQStringList TagGuesser::schemeStrings()
{
TQStringList schemes;
TDEConfigGroup config(TDEGlobal::config(), "TagGuesser");
schemes = config.readListEntry("Filename schemes");
if ( schemes.isEmpty() ) {
schemes += "%a - (%T) - %t [%c]";
schemes += "%a - (%T) - %t (%c)";
schemes += "%a - (%T) - %t";
schemes += "%a - [%T] - %t [%c]";
schemes += "%a - [%T] - %t (%c)";
schemes += "%a - [%T] - %t";
schemes += "%a - %T - %t [%c]";
schemes += "%a - %T - %t (%c)";
schemes += "%a - %T - %t";
schemes += "(%T) %a - %t [%c]";
schemes += "(%T) %a - %t (%c)";
schemes += "(%T) %a - %t";
schemes += "[%T] %a - %t [%c]";
schemes += "[%T] %a - %t (%c)";
schemes += "[%T] %a - %t";
schemes += "%T %a - %t [%c]";
schemes += "%T %a - %t (%c)";
schemes += "%T %a - %t";
schemes += "(%a) %t [%c]";
schemes += "(%a) %t (%c)";
schemes += "(%a) %t";
schemes += "%a - %t [%c]";
schemes += "%a - %t (%c)";
schemes += "%a - %t";
schemes += "%a/%A/[%T] %t [%c]";
schemes += "%a/%A/[%T] %t (%c)";
schemes += "%a/%A/[%T] %t";
}
return schemes;
}
void TagGuesser::setSchemeStrings(const TQStringList &schemes)
{
TDEConfig *cfg = kapp->config();
{
TDEConfigGroupSaver saver(cfg, "TagGuesser");
cfg->writeEntry("Filename schemes", schemes);
}
cfg->sync();
}
TagGuesser::TagGuesser()
{
loadSchemes();
}
TagGuesser::TagGuesser(const TQString &absFileName)
{
loadSchemes();
guess(absFileName);
}
void TagGuesser::loadSchemes()
{
const TQStringList schemes = schemeStrings();
TQStringList::ConstIterator it = schemes.begin();
TQStringList::ConstIterator end = schemes.end();
for ( ; it != end; ++it )
m_schemes += FileNameScheme( *it );
}
void TagGuesser::guess(const TQString &absFileName)
{
m_title = m_artist = m_album = m_track = m_comment = TQString();
FileNameScheme::List::ConstIterator it = m_schemes.begin();
FileNameScheme::List::ConstIterator end = m_schemes.end();
for (; it != end; ++it) {
const FileNameScheme schema(*it);
if(schema.matches(absFileName)) {
m_title = capitalizeWords(schema.title().replace('_', " ")).stripWhiteSpace();
m_artist = capitalizeWords(schema.artist().replace('_', " ")).stripWhiteSpace();
m_album = capitalizeWords(schema.album().replace('_', " ")).stripWhiteSpace();
m_track = schema.track().stripWhiteSpace();
m_comment = schema.comment().replace('_', " ").stripWhiteSpace();
break;
}
}
}
TQString TagGuesser::capitalizeWords(const TQString &s)
{
if(s.isEmpty())
return s;
TQString result = s;
result[ 0 ] = result[ 0 ].upper();
const TQRegExp wordRegExp("\\s\\w");
int i = result.find( wordRegExp );
while ( i > -1 ) {
result[ i + 1 ] = result[ i + 1 ].upper();
i = result.find( wordRegExp, ++i );
}
return result;
}
// vim:ts=4:sw=4:noet