[antlr-interest] Discarding characters in lexer

[Andrey Timoshenkov]

Hello everybody.

I have a possibly quick question about the lexical analyzer. In version 
2 there was a '!' operator that allowed to discard characters from token 
text like this:

STRING: '"'! ('"' '"'! | ~('"') )* '"'! ;


It seems that it has gone in version 3. Is it possible to achieve the 
same result in version 3?

Thank you,
Andrey Timoshenkov