antimatter15 / js-id3v2 Goto Github PK

          parseFile: function(file, onComplete) {


    var pos = 0,
    bits_required = 0,
    handle = function() {
    },
    maxdata = Infinity;

    function read(bytes, callback, newmax) {
        bits_required = bytes;
        handle = callback;
        maxdata = newmax;
        if(bytes == 0)
            callback('',[]);
    }
    var reader = fs.readFile(file,'ascii',function(err,data) {
        var responseText = '';
       (function(data){


        if(data) {
            responseText = data;
        }

        if(responseText.length > pos + bits_required && bits_required) {
            var data = responseText.substr(pos, bits_required);
            var arrdata = data.split('').map( function(e) {
            return e.charCodeAt(0) & 0xff
        });
        pos += bits_required;
        bits_required = 0;
        var resp = handle(data, arrdata) ;
        if( resp === false ||  bits_required===0 ){
            return;
        }
      }
      setTimeout(arguments.callee,0);
     })(data);
    });

    return [reader, ID3v2.parseStream(read, onComplete)];
}