public function pattern($pattern = null)
        {
            if ($pattern === null) return $this->rulePattern;

            $this->rulePattern = $pattern;

            return $this;
        }
public function pattern($pattern = null)
        {
            if ($pattern === null) return $this->rulePattern;

            $this->rulePattern = $pattern;

            return $this;
        }
public function pattern ( $ pattern = null ) { if ( $ pattern === null ) return $ this -> rulePattern ; $ this -> rulePattern = $ pattern ; return $ this ; }
Route match pattern

@param string $pattern Pattern used to match this rule
@return object Self
Route match pattern