compoze/src/xml-parser.js

music writer

// Generated by CoffeeScript 1.8.0
(function() {
  var Duration, fileName, fs, json, measures, s, song, xml, xml2json;

  xml2json = require('xml2json');

  fs = require('fs');

  fileName = '新世纪福音战士';

  xml = fs.readFileSync('../demo/musicxml/' + fileName + '.xml');

  json = xml2json.toJson(xml, {
    object: true
  });

  song = json['score-partwise'];

  measures = [];

  Duration = {
    '16th': '16',
    '32th': '32',
    'eighth': '8',
    'quarter': 'q',
    'half': 'h'
  };

  song.part.measure.forEach(function(measure, i) {
    var chord, duration;
    if (!measures[i]) {
      measures[i] = 'notes ';
    }
    chord = [];
    duration = null;
    return measure.note.forEach(function(note) {
      var temp;
      temp = '';
      if (chord.length > 0 && !note.chord) {
        if (chord.length === 1) {
          temp += chord[0] + ' ';
        } else {
          temp += '(' + chord.join('+') + ') ';
        }
        if (duration !== note.type) {
          temp = (Duration[duration] ? ' :' + Duration[duration] : '') + ' ' + temp;
        }
        measures[i] += temp;
        duration = note.type;
        chord = [];
      }
      duration = note.type;
      if (note.rest) {
        return chord.push('##');
      } else {
        return chord.push(note.notations.technical.fret + '/' + note.notations.technical.string);
      }
    });
  });

  s = 'options player=true tempo=76 width=980\n';

  measures.forEach(function(m) {
    return s += 'tabstave notation=true tablature=true\n' + m + '\n';
  });

  fs.writeFileSync('../demo/musicxml/' + fileName + '.md', s);

}).call(this);