[antlr-interest] Problem with Lexer.. may be a bug
Gavin Lambert
antlr at mirality.co.nz
Tue Apr 24 04:05:33 PDT 2007
At 02:20 24/04/2007, Alexandre Porcelli wrote:
> I have a problem with my lex rules... I have 5 similar
rules...
>when I try to use all of then.. i got the following error
message:
>
>"ANTLR could not analyze this decision in rule Tokens; often
this
>is because of recursive rule references visible from the left
edge
>of alternatives. ANTLR will re-analyze the decision with a
fixed
>lookahead of k=1. Consider using "options {k=1;}" for that
>decision and possibly adding a syntactic predicate."
Well, I'm not sure why it'd generate that particular message (it
doesn't for me), but the grammars you attached appear to declare
and use COMMENTED_TEXT without actually defining it, which is
illegal.
More information about the antlr-interest
mailing list