[antlr-interest] Altering antlr tool

[Adam Connelly]

Yeah, I'd noticed from looking at the grammars that they were a bit
different to the ones I'm used to.  I'm willing to help anywhere I can, but
I wouldn't quite know where to start.

Anyhow, cheers for the reply.

Adam

2008/5/19 Johannes Luber <JALuber at gmx.de>:

> > Hi,
> >
> > I've got a couple of ideas that I want to try out that would involve
> > modifying the antlr grammar and altering what's generated.  What I was
> > wondering is are there any resources that explain where to start with
> > this,
> > or do I basically just have to snoop around until I figure out how it
> > works.
>
> While I commend your spirit there is one big hindrance for doing
> modifications: ANTLR 3.x is still implemented in ANTLR 2.7.7. This version
> has some limitations which are causing grief for many newbies. I suppose
> that changing ANTLR 3.x means that any implementation change to get rid of
> the old version will break your changes, too. Maybe you are interested in
> assisting Ter in this task, as I don't know if ANTLR 3.2 will manage the
> jump or not. At least you'll know the internals like the insides of your
> pocket. ;)
>
> Johannes
> >
> > I basically want to add an extra bit to lexer token definitions and then
> > generate some code based on that.  Also, I was thinking of modifying the
> > semantic predicate syntax to add a "type" plus arguments to it (and once
> > again generate code based on that).
> >
> > Cheers,
> > Adam
>
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