showdownjs/showdown

showdown.subParser('makeMarkdown.list', function (node, options, globals, type) {
  'use strict';

  var txt = '';
  if (!node.hasChildNodes()) {
    return '';
  }
  var listItems       = node.childNodes,
      listItemsLenght = listItems.length,
      listNum = node.getAttribute('start') || 1;

  for (var i = 0; i < listItemsLenght; ++i) {
    if (typeof listItems[i].tagName === 'undefined' || listItems[i].tagName.toLowerCase() !== 'li') {
      continue;
    }

    // define the bullet to use in list
    var bullet = '';
    if (type === 'ol') {
      bullet = listNum.toString() + '. ';
    } else {
      bullet = '- ';
    }

    // parse list item
    txt += bullet + showdown.subParser('makeMarkdown.listItem')(listItems[i], options, globals);
    ++listNum;
  }

  return txt.trim();
});