[antlr-interest] Help with a production rule
Chuck Siska
chuck.siska at nb.conexant.com
Sat Feb 9 08:17:26 PST 2002
alex --
without massive lookahead (and its attendant slowdown) you'll
want to register the starting symbol tuples in a symbol table
and then give an error when you can finally determine that the
corresponding ending tuple is missing (e.g., at the end of
input/file, after 500 lines, at the end of some key outer
symbol tuple).
-- chuck
alexworden wrote:
>
> Hi,
>
> Can anyone help me. I'm trying to write an ANTLR rule that will match
> something like
>
> <x1:y2> blah blah blah </x2:y2>
>
> where x1==x2 and y1==y2 but I have not prior knowledge what these
> tokens might be. e.g.
>
> <foo:bar>
> some other stuff
> </foo:bar>
>
> I've tried something like:
>
> : "<" x:WORD ":" y:WORD ">" MATCH_ALL "<" x.getText() ":" y.getText
> () ">"
>
> but ANTLR doesn't like it. Does anyone know how to do this please?
>
> Thanks,
>
> Alex
--
|\_/\_.-'""``:-._
What is life without looking for . . `; -._ )-;-,_`)
the next cute little bug to play with? v_,- _ ),(,.\ ``-'
_.- _.,-_/ / ((.'
-- chuck.siska at conexant.com `<}:.. ((,.-' ((,/
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