code: function splitIntoSlabs(str) {
    var slabs = str.split('<!-- TEXTBLOCK -->');
    return slabs.map(function(val, index, array) {
      if (index % 2 == 1) {
        var rawAttr = val.match(/<code>(.*)<\/code>/);
        var attrs = JSON.parse(decodeURI(rawAttr[1]));
        return attrs;
      } else {
        return val;
      }
    });
  }
docs: Split into slabs, undoing the placeholders created in generatePlaceholder
  @param {String} str The string to convert back to slabs
  @return {Array} Slabs that have been broken out