(function(window){

  function header(){
    /*
     * // # this is header
     * // with some description
     */
  }

  function subhead(){
    /*
     * // this is subhead
     * //----------------
     * // with some description
     */
  }

  function bold(){
    /*
     * // **this is bold**
     * //
     * // __this is bold__
     * //
     * // with some description
     */
  }

  function oblic(){
    /*
     * // *this is oblic*
     * //
     * // _this is oblic_
     * //
     * // with some description
     */
  }

  function list(){
    /*
     * // this is list
     * //----------------
     * // - item
     * // - item
     * // - item
     * //
     * // with some description
     */
  }

  function ordered_list(){
    /*
     * // this is list
     * //----------------
     * // 1. item
     * // 2. item
     * // 3. item
     * //
     * // with some description
     */
  }

  /* // > this is a paragraph */

  /* // >> this is another paragraph */

  /*
  this is a block comment
   */

  /*
   * // `quoted block`
   * // with a comment
   */

  /*
   * // `quoted
   * // block multi-lines ?`
   * // with a comment
   */

  /**
   * this is a function comment
   *
   * @param block
   * @returns {boolean}
   */
  function block_comment(block){
    return false;
  }

})(window);