Cueファイル読み込み

readCue.js

// Cueファイル読み込み
Cue.readCue = function(param,cb) {
	var strText;
	var self = this;
	var data;

	var trackMode = false;
	var tmpTrackNo=0;
	var indexNo;

	var error;

	var di = {};
	di.track = [];
	var data = '';

	//console.dir(param);
	if( param.fileName != '' ) {
		try {
			data = fs.readFileSync(param.fileName);
		} catch(e) {
			console.log(e);
			return;
		}
	} else {
		// ファイルが設定されてない場合はrawにCueの内容が設定されているはず。
		data = param.raw;
	}

	if( param.encode == undefined || param.encode == 'utf-8' ) {
		data = data.toString();
	} else {
		//console.log('encode:'+param.encode);
		data = jconv.convert(data,param.encode,'utf-8').toString();
	}
	//console.log(data);

	data.replace(/\r/g,'').split('\n').forEach(function (strText) {
		//console.log(strText);
		arrText = strText.ltrim().split(" ");

		if( !trackMode ) {
			// 全体情報
			switch( arrText[0] ) {
				case "REM" :
					switch( arrText[1] ) {
						case "DISCID" :
							di.discId = arrText[2];
							break;
						case "ACCURATERIPID" :
							di.accurateRipId = arrText[2];
							break;
						case "DATE" :
							di.date = arrText[2];
							break;
						case "DISCNUMBER" :
							di.discNumber = arrText[2];
							break;
						case "GENRE" :
							di.genre = strText.match( /REM GENRE "{0,1}([^"]*)"{0,1}/ )[1];
							break;
						case "TOTALDISCS" :
							di.totalDiscs = arrText[2];
							break;
						case "COMMENT" :
							di.comment = strText.match( /REM COMMENT "{0,1}([^"]*)"{0,1}/ )[1];
							break;

						case "REPLAYGAIN_ALBUM_GAIN" :
							di.replaygain_album_gain = arrText[2];
							break;
						case "REPLAYGAIN_ALBUM_PEAK" :
							di.replaygain_album_peak = arrText[2];
							break;

						default :
							break;
					}
					break;
				case "PERFORMER" :
					di.albumArtist = strText.match( /^[^ ]* "{0,1}([^"]*)"{0,1}/ )[1];
					break;
				case "TITLE" :
					di.albumTitle = strText.match( /^[^ ]* "{0,1}([^"]*)"{0,1}/ )[1];
					break;
				case "CATALOG" :
					di.catalog = arrText[1];
					break;

				case "FILE" :
					di.wavFile		= strText.match( /FILE "{0,1}([^"]*)"{0,1}/ )[1];
					di.wavFileType	= strText.match( /FILE "{0,1}[^"]*"{0,1} ([^ ]*)/ )[1];

					trackMode = true;

					break;
				default :
					//console.log('unknown:',arrText);
					break;
			}
		} else {
			// トラック情報
			switch( arrText[0] ) {
				case "TRACK" :
					tmpTrackNo 					= strText.match( /TRACK ([0-9]{1,2})/ )[1].toInt();
					di.trackCount = tmpTrackNo;

					tmpTrackNo--;	// 配列なので-1

					di.track.push({});
					di.track[tmpTrackNo].index = [];

					di.track[tmpTrackNo].type	= strText.match( /TRACK [0-9]{1,2} ([^"]*)/ )[1];
					break;

				case "PERFORMER" :
					di.track[tmpTrackNo].artist = strText.match( /PERFORMER "{0,1}([^"]*)"{0,1}/ )[1];
					break;
				case "TITLE" :
					di.track[tmpTrackNo].title = strText.match( /TITLE "{0,1}([^"]*)"{0,1}/ )[1];
					break;
				case "ISRC" :
					di.track[tmpTrackNo].isrc = strText.match( /ISRC "{0,1}([^"]*)"{0,1}/ )[1];
					break;

				case "REM" :
					switch( arrText[1] ) {
						case "REPLAYGAIN_TRACK_GAIN" :
							di.track[tmpTrackNo].replaygain_trackgain = arrText[2];
							break;
						case "REPLAYGAIN_TRACK_PEAK" :
							di.track[tmpTrackNo].replaygain_track_peak = arrText[2];
							break;
						default :
							break;
					}
					break;

				case "INDEX" :
					indexNo = strText.match( /INDEX ([0-9]{1,2}) .*/ )[1];
					var idx = di.track[tmpTrackNo].index.push({});
					di.track[tmpTrackNo].indexCount = idx;
					idx--;
					//console.log(idx)
					di.track[tmpTrackNo].index[idx].id = indexNo;
					di.track[tmpTrackNo].index[idx].time = strText.match( /INDEX [0-9]{1,2} (.*)/ )[1];
					di.track[tmpTrackNo].index[idx].min = (strText.match( /INDEX [0-9]{1,2} ([0-9]{1,2}):[0-9]{1,2}:[0-9]{1,2}/ )[1]).toInt();
					di.track[tmpTrackNo].index[idx].sec = (strText.match( /INDEX [0-9]{1,2} [0-9]{1,2}:([0-9]{1,2}):[0-9]{1,2}/ )[1]).toInt();
					di.track[tmpTrackNo].index[idx].flame = (strText.match( /INDEX [0-9]{1,2} [0-9]{1,2}:[0-9]{1,2}:([0-9]{1,2})/ )[1]).toInt();

					di.track[tmpTrackNo].index[idx].totalFlame =
									(di.track[tmpTrackNo].index[idx].min * 60 * 75) +
									(di.track[tmpTrackNo].index[idx].sec * 75) +
									(di.track[tmpTrackNo].index[idx].flame);


					break;

				default :
					//console.log('unknown:',arrText);
					break;
			}
		}
	});

	//console.log(di);
	cb(error,di);
}