code: function handleSimpleAttribute() {
      SIMPLEATTR.lastIndex = nextchar-1;
      var matched = SIMPLEATTR.exec(chars);
      if (!matched) throw new Error("should never happen");
      var name = matched[1];
      if (!name) return false;
      var value = matched[2];
      var len = value.length;
      switch(value[0]) {
      case '"':
      case "'":
        value = value.substring(1, len-1);
        nextchar += (matched[0].length-1);
        tokenizer = after_attribute_value_quoted_state;
        break;
      default:
        tokenizer = before_attribute_name_state;
        nextchar += (matched[0].length-1);
        value = value.substring(0, len-1);
        break;
      }
  
      // Make sure there isn't already an attribute with this name
      // If there is, ignore this one.
      for(var i = 0; i < attributes.length; i++) {
        if (attributes[i][0] === name) return true;
      }
  
      attributes.push([name, value]);
      return true;
    }
docs: Shortcut for simple attributes