[antlr-interest] RES: RES: RES: COBOL grammar

[Nilo Roberto C Paim]

According with Cobol rules, the '.' will ends the outer 'IF', and this is
not intended.

An 'IF' command is terminated by a '.', no matter which commands are inside
the 'IF' alternatives. A '.' in the alternatives will ends the 'IF', even if
in the alternatives are another 'IF' command.

I'll make a clearer sample, pointing exactly what I'm saying.


IF expr
   IF expr2
      A
   ELSE
      B.
ELSE
   C.

The '.' following 'B' will ends the outer 'IF', causing a syntax error on
the second 'ELSE'. If this '.' following 'B' doesn't exists, the code is
completely correct in terms of syntax, ad that is what I need...

Thanks a lot for your interest, Parsiad.

Best regards,
Nilo - Brazil




-----Mensagem original-----
De: antlr-interest-bounces at antlr.org
[mailto:antlr-interest-bounces at antlr.org] Em nome de Parsiad Azimzadeh
Enviada em: terça-feira, 12 de julho de 2011 18:04
Para: antlr-interest at antlr.org
Assunto: Re: [antlr-interest] RES: RES: COBOL grammar

> I cannot ends the inner 'IF' with a '.', because this will ends the outter
> IF too.

What I have written will only end the inner IF.

-- 
Parsiad Azimzadeh
http://sfu.ca/~paa4

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