119 lines
3.8 KiB
C++
119 lines
3.8 KiB
C++
//=============================================================================
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// BWW to MusicXML converter
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// Part of MusE Score
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// Linux Music Score Editor
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// $Id: parser.h 4873 2011-10-19 19:33:04Z lvinken $
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//
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// Copyright (C) 2010 Werner Schweer and others
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License version 2.
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//
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// This program 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
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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//=============================================================================
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#ifndef PARSER_H
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#define PARSER_H
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/**
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\file
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Definition of class Parser
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*/
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#include <QtCore/QList>
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#include <QtCore/QString>
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#include <QtCore/QVector>
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#include "writer.h"
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namespace Bww {
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class Lexer;
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struct NoteDescription
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{
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QString pitch;
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QString beam;
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QString type;
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int dots;
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bool tieStart;
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bool tieStop;
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StartStop triplet;
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bool grace;
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StartStop beamState;
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QVector<BeamType> beamList;
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NoteDescription(const QString _pitch, const QString _beam,
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const QString _type, const int _dots,
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bool _tieStart = false, bool _tieStop = false,
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StartStop _triplet = ST_NONE,
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bool _grace = false)
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: pitch(_pitch), beam(_beam),
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type(_type), dots(_dots),
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tieStart(_tieStart), tieStop(_tieStop),
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triplet(_triplet),
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grace(_grace),
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beamState(ST_NONE),
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beamList(maxBeamLevel, BM_NONE)
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{}
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};
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struct MeasureDescription
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{
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MeasureBeginFlags mbf;
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QList<NoteDescription> notes;
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MeasureEndFlags mef;
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int duration;
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MeasureDescription()
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: duration(0)
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{}
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};
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/**
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The bww parser.
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*/
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class Parser
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{
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public:
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Parser(Lexer& l, Writer& w);
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void parse();
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private:
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void errorHandler(QString s);
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void parseBar(Bww::MeasureEndFlags& mef);
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void parseNote();
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void parseGraces();
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void parsePart(Bww::MeasureBeginFlags& mbf, Bww::MeasureEndFlags& mef);
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void parseSeqNonNotes();
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void parseSeqNotes();
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void parseString();
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void parseTempo();
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void parseTSig();
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Lexer& lex; ///< The lexer
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Writer& wrt; ///< The writer
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QString title; ///< Title read from the header
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QString type; ///< Type read from the header
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QString composer; ///< Composer read from the header
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QString footer; ///< Footer read from the header
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int tempo; ///< Tune tempo read from the header
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int beat; ///< Beat type, read from the clef line
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int beats; ///< Number of beats, read from the clef line
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bool inMeasure; ///< State: writing the notes in a measure
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int measureNr; ///< Current measure number
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bool tieStart; ///< Tie start pending
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bool inTie; ///< In a tie
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bool tripletStart; ///< Triplet start pending
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bool inTriplet; ///< In a triplet
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QList<MeasureDescription> measures; ///< Parsed measures
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bool tsigFound; ///< A valid time signature was found
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};
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} // namespace Bww
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#endif // PARSER_H
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