private function moveToPreviousLine(): bool
    {
        if ($this->currentLineNb < 1) {
            return false;
        }

        $this->currentLine = $this->lines[--$this->currentLineNb];

        return true;
    }
private function moveToPreviousLine(): bool
    {
        if ($this->currentLineNb < 1) {
            return false;
        }

        $this->currentLine = $this->lines[--$this->currentLineNb];

        return true;
    }
private function moveToPreviousLine ( ) : bool { if ( $ this -> currentLineNb < 1 ) { return false ; } $ this -> currentLine = $ this -> lines [ -- $ this -> currentLineNb ] ; return true ; }
Moves the parser to the previous line.

@return bool
Moves the parser to the previous line .