checks if a value is a valid url . concode_field_sep URLValidator s_aInstance concode_elem_sep Pattern PATTERN concode_field_sep String getUnifiedURL
boolean function ( @ Nullable final String arg0 ) { if ( StringHelper . hasNoText ( arg0 ) ) return false ; final String loc0 = getUnifiedURL ( arg0 ) ; return PATTERN . matcher ( loc0 ) . matches ( ) ; }