retval.g = factory.build_CharRange((c1!=null?c1.getText():null), (c2!=null?c2.getText():null));
retval.g = factory.build_CharRange((c1!=null?c1.getText():null), (c2!=null?c2.getText():null));
g = factory.build_CharRange(c1.getText(), c2.getText());
retval.g = factory.build_CharRange((c1!=null?c1.getText():null), (c2!=null?c2.getText():null));
retval.g = factory.build_CharRange((c1!=null?c1.getText():null), (c2!=null?c2.getText():null));
g = factory.build_CharRange(c1.getText(), c2.getText());