test-src.js

var readline = require('readline');
var mt = require('.');
console.log('midi-test v.' + mt.version);
var src = mt.MidiSrc('VIRTUAL MIDI-In');
console.log('Opening ' + src.name + ':', src.connect());
if (!src.connected) {
  console.log('Could not open ' + src.name + '!');
  process.exit(0);
}
console.log('Enter MIDI sequence or Ctrl-C to terminate...');
console.log('Multiple messages can be separated by comma,');
console.log('e.g.: c0 10, 90 40 7f');
var rl = readline.createInterface({ input: process.stdin, output: process.stdout });
rl.on('line', function(line){
  var i, j, chunk, msg, x;
  var group = [];
  var data = line.split(/,\s*/);
  for (i = 0; i < data.length; i++) {
    if (data[i] == '') continue;
    chunk = data[i].split(/\s+/);
    msg = [];
    for (j = 0; j < chunk.length; j++) {
      if (chunk[j] == '') continue;
      x = parseInt(chunk[j], 16);
      if (x >= 0 && x <= 255) msg.push(x);
      else {
        console.log('Invalid hex MIDI value:', chunk[j]);
        return;
      }
    }
    if (msg.length) group.push(msg);
  }
  if (!group.length) return;
  for (i = 0; i < group.length; i++) {
    data = [];
    msg = group[i];
    for (j = 0; j < msg.length; j++) {
      data.push(('0' + msg[j].toString(16)).substr(-2));
    }
    console.log('Sending:', data.join(' '));
    src.emit(msg);
  }
});