question: create a new regular expression instance . concode_field_sep PlaceHolder placeHolder concode_field_sep RegexpMatcher createInstance concode_elem_sep boolean regexpMatcherPresent concode_elem_sep void testAvailability
target: RegexpMatcher function ( Project arg0 ) { String loc0 = null ; if ( arg0 == null ) { loc0 = System . getProperty ( MagicNames . REGEXP_IMPL ) ; } else { loc0 = arg0 . getProperty ( MagicNames . REGEXP_IMPL ) ; } if ( loc0 != null ) { return createInstance ( loc0 ) ; } return new Jdk14RegexpMatcher ( ) ; }