docs: function(){
      var tok = this.expect('indent');
      var block = this.emptyBlock(tok.loc.start.line);
      while ('outdent' != this.peek().type) {
        if ('newline' == this.peek().type) {
          this.advance();
        } else if ('text-html' == this.peek().type) {
          block.nodes = block.nodes.concat(this.parseTextHtml());
        } else {
          var expr = this.parseExpr();
          if (expr.type === 'Block') {
            block.nodes = block.nodes.concat(expr.nodes);
          } else {
            block.nodes.push(expr);
          }
        }
      }
      this.expect('outdent');
      return block;
    }