void function ( ) { lastGoodPosition = position ; }
indicate that the current token has been successfully processed . concode_field_sep int lastGoodPosition concode_elem_sep String expression concode_elem_sep List<Token> tokenStream concode_elem_sep int position concode_field_sep Token next concode_elem_sep String getExpression concode_elem_sep boolean lookAhead concode_elem_sep Token eat concode_elem_sep boolean hasNext concode_elem_sep int position concode_elem_sep List<Token> getTokenStream concode_elem_sep int decrementPosition concode_elem_sep void raiseException concode_elem_sep Token peek concode_elem_sep boolean peek concode_elem_sep boolean peek concode_elem_sep boolean isNextAdjacent