more code completion fun!

[Daniel Berlin]

Heiko Leberer <Heiko_Leberer at non.agilent.com> writes:

> christopher j bottaro wrote:
> > 
> 
> I'm not familiar with ANTLR, but since it looks quite like to yacc with
> some additional features, so I comment on what I think you're doing.

It's not, at all.
YACC is LALR(1), ANTLR is LL(k).

There is a huge difference in how you write a grammar for an LALR(1)
generator, and how you write one for an LL(k) generator
> 
> Those ()? and ()* are great to save some place in writing, but
> apparently they do not lead to carefully designed rules.
> 
> How should the parser generator differ between
> 
> "++ident" as result from "unary_op unary_op postfix_expr"
> 
> and
> 
> "++ident" as result from "INC postfix_expr"

Through the k lookahead.


I'll stop here, the rest of your commentary just doesn't apply,
because ANTLR is not LALR.
--Dan

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