[antlr-interest] Error reporting

[Matthias Schnelte]

No ideas? anybody?
I have tried the same grammar with javacc and it reports all the three 
possibilities as error message.
Any idea how to implement this in ANTLR?

Matthias

> ----- Ursprüngliche Nachricht -----
> Von: mschnelte at gmx.de
> Gesendet: 13.08.07 13:38 Uhr
> An: antlr-interest at antlr.org
> Betreff: [antlr-interest] Error reporting
> 
> Hi everyone,
> 
> I have the following grammar:
> 
> ===
> sp2: WENN condition DANN;
> 
> 
> condition  :    simpleCondition (('und' ^|'oder' ^) 
> simpleCondition)*;
> 
> simpleCondition :    ie iv 'ist';
> 
> ie     :    QUOTE! .+ QUOTE!;
> iv    :    QUOTE! .+ QUOTE!;
> 
> 
> If the parser reads the following string: "wenn "bla" "blub" ist" it 
> reports as error:
> 
> "mismatched input '<EOF>' expecting DANN"
> 
> Ok, "DANN" would produce a correct statement but "und" or "oder" can 
> follow a simpleCondition as well.
> How can I get the parser to print out all possible inputs on a decision 
> point?
> I want to implement a code completion and such thing would of course be 
> very useful.
> 
> Matthias
> 
> 
 
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