[antlr-interest] Internal error

[Johannes Luber]

-------- Original-Nachricht --------
> Datum: Wed, 5 Dec 2007 17:42:42 +1100
> Von: "Steve Bennett" <stevagewp at gmail.com>
> An: "antlr-interest Interest" <antlr-interest at antlr.org>
> Betreff: [antlr-interest] Internal error

> I got this error with ANTLRWorks 1.1.5 (and .4 as well):
> 
...
> 
> The code that seems to have caused it is as follows:
> ----
> literal_equals:
>     {!in_header}? => EQUALS
>     | {input.LA(2) != EQUALS}? => EQUALS;
> ----
> 
> Am I doing something wrong? It didn't produce this error without the
> third line of the above.
> 
> This apparently equivalent rule doesn't produce the error, I have just
> discovered:
> 
> literal_equals:
>     {!in_header || input.LA(2) != EQUALS}? => EQUALS
> ;
> 

Remove those spaces between "}?" and "=>" - maybe that's causing the parsing error.

Johannes
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