g.tool.errMgr.grammarError(ErrorType.UNSUPPORTED_REFERENCE_IN_LEXER_SET,
g.fileName, t.getToken(), t.getText());
}
}
if ( invert ) {
left.addTransition(new NotSetTransition(right, set));
}
else {
Transition transition;
if (set.getIntervals().size() == 1) {
Interval interval = set.getIntervals().get(0);