private function indent($force = false)
    {
        if ($this->size || $force) {
            $this->result .= $this->break;
        }

        if ($this->size) {
            $this->result .= str_repeat(
                $this->char,
                $this->size * $this->level
            );
        }
    }
private function indent($force = false)
    {
        if ($this->size || $force) {
            $this->result .= $this->break;
        }

        if ($this->size) {
            $this->result .= str_repeat(
                $this->char,
                $this->size * $this->level
            );
        }
    }
private function indent ( $ force = false ) { if ( $ this -> size || $ force ) { $ this -> result .= $ this -> break ; } if ( $ this -> size ) { $ this -> result .= str_repeat ( $ this -> char , $ this -> size * $ this -> level ) ; } }
Adds indentation to the result.

@param boolean $force Force add a line break?
Adds indentation to the result .