protected function idFilter()
    {
        $id = "";

        if (!$this->match("/^\#/")) {
            return false;
        }
        if (!list($id) = $this->is("identifier")) {
            throw new TextParserException("Invalid identifier", $this);
        }
        return new CssParserFilterId($id);
    }
protected function idFilter()
    {
        $id = "";

        if (!$this->match("/^\#/")) {
            return false;
        }
        if (!list($id) = $this->is("identifier")) {
            throw new TextParserException("Invalid identifier", $this);
        }
        return new CssParserFilterId($id);
    }
protected function idFilter ( ) { $ id = "" ; if ( ! $ this -> match ( "/^\#/" ) ) { return false ; } if ( ! list ( $ id ) = $ this -> is ( "identifier" ) ) { throw new TextParserException ( "Invalid identifier" , $ this ) ; } return new CssParserFilterId ( $ id ) ; }
Is the next thing an id filter?

@return false|CssParserFilterId
Is the next thing an id filter?