[antlr-interest] Discarding characters in lexer

[Dmitry Gusev]

Privet Andrey,

You can use '!' operator with rules, but not tokens.


On Thu, Mar 27, 2008 at 6:02 PM, Andrey Timoshenkov <tas at ultersys.ru> wrote:

> 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
>
>
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