checks whether a character is a letter or digit ascii which are defined in the spec . concode_field_sep Map<String,S> services concode_elem_sep Class<S> clazz concode_field_sep S lookup concode_elem_sep Iterator<S> iterator concode_elem_sep void reload concode_elem_sep String getName concode_elem_sep Set<String> availableServices concode_elem_sep void checkServiceName
boolean function ( char arg0 ) { return ( 'a' <= arg0 && arg0 <= 'z' ) || ( 'A' <= arg0 && arg0 <= 'Z' ) || ( '0' <= arg0 && arg0 <= '9' ) ; }