132 lines
2.8 KiB
C++
132 lines
2.8 KiB
C++
/*
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* Copyright (C) 2003-2013 The Music Player Daemon Project
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* http://www.musicpd.org
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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 as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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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 along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef MPD_CUE_PARSER_HXX
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#define MPD_CUE_PARSER_HXX
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#include "check.h"
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#include "Compiler.h"
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struct Song;
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struct Tag;
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class CueParser {
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enum {
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/**
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* Parsing the CUE header.
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*/
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HEADER,
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/**
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* Parsing a "FILE ... WAVE".
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*/
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WAVE,
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/**
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* Ignore everything until the next "FILE".
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*/
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IGNORE_FILE,
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/**
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* Parsing a "TRACK ... AUDIO".
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*/
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TRACK,
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/**
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* Ignore everything until the next "TRACK".
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*/
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IGNORE_TRACK,
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} state;
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Tag *tag;
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char *filename;
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/**
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* The song currently being edited.
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*/
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Song *current;
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/**
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* The previous song. It is remembered because its end_time
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* will be set to the current song's start time.
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*/
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Song *previous;
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/**
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* A song that is completely finished and can be returned to
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* the caller via cue_parser_get().
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*/
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Song *finished;
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/**
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* Set to true after previous.end_time has been updated to the
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* start time of the current song.
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*/
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bool last_updated;
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/**
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* Tracks whether cue_parser_finish() has been called. If
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* true, then all remaining (partial) results will be
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* delivered by cue_parser_get().
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*/
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bool end;
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public:
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CueParser();
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~CueParser();
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/**
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* Feed a text line from the CUE file into the parser. Call
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* cue_parser_get() after this to see if a song has been finished.
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*/
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void Feed(const char *line);
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/**
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* Tell the parser that the end of the file has been reached. Call
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* cue_parser_get() after this to see if a song has been finished.
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* This procedure must be done twice!
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*/
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void Finish();
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/**
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* Check if a song was finished by the last cue_parser_feed() or
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* cue_parser_finish() call.
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*
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* @return a song object that must be freed by the caller, or NULL if
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* no song was finished at this time
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*/
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Song *Get();
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private:
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gcc_pure
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Tag *GetCurrentTag();
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/**
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* Commit the current song. It will be moved to "previous",
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* so the next song may soon edit its end time (using the next
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* song's start time).
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*/
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void Commit();
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void Feed2(char *p);
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};
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#endif
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