[antlr-interest] how to get tokens

Abhijit Nandkumar Ghonge Abhijit_Ghonge at infosys.com
Fri Sep 29 02:16:51 PDT 2006




 The output sometimes is "unexpected token 'ddd'"
But for the below error it says: "expecting LPAREN found 'ddd'"

Abhijit.

> Can anybody help me with this: Whenever there is an unknown token,
> parser throws RecognitionException. Can I, somehow, extract this token

> that has caused the exception. E.g I have a construct say:
>
> If ( a> 10 ) then
>
> Print(a);
>
> Endif;
>
> Someone makes the following error:
>
> *Ifddd* ( a> 10 ) then
>
> Print(a);
>
> Endif;
>
> Now "ifddd" is syntax error and this is an unknown token. Can I
> extract this in RecognitionException catch block by some method??
>
What's the output of the default?
is that something like 'unrecognition token "ddd"'
>
> Please help.
>
> Abhijit.

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