public function unconsume($howMany = 1) {
        if (($this->char - $howMany) >= 0) {
            $this->char = $this->char - $howMany;
        }
    }
public function unconsume($howMany = 1) {
        if (($this->char - $howMany) >= 0) {
            $this->char = $this->char - $howMany;
        }
    }
public function unconsume ( $ howMany = 1 ) { if ( ( $ this -> char - $ howMany ) >= 0 ) { $ this -> char = $ this -> char - $ howMany ; } }
Unconsume characters.

@param int $howMany
The number of characters to unconsume.
Unconsume characters .