[antlr-interest] misunderstanding channel HIDDEN

[Ian Eyberg]

Hi,
  I think I'm misunderstanding the usage of $channel = HIDDEN
or skip().

I have text that looks like:

  'b^@l^@a^@h^@'

(most of the time the text is simply 'blah')
and then it should come out like this:

  'blah'

my relevant rules are:

  startrule : BLAH;
  BLAH    : 'blah';
  UCODE   : '\u0000'{ $channel = HIDDEN; };

I'm reading in through antlrinputstream as "UTF8" as I do
want to support multi-byte chars and I have rules to help
that such as:

UNICODE : ('\u00a0'..'\uffff');

What am I doing wrong here?

Thanks,
Ian