[antlr-interest] How to look only for one rule?

[Loring Craymer]

What are you trying to do, then?  For a single file,
building a custom tool is usually overkill.  If you
just want to do analysis of a single file, take a look
at Columbus/CAN from
<http://www.frontendart.com/>--it's a pretty nice tool
and there is an evaluation period during which you can
license it for free.

--Loring

--- Matthias Gutheil
<matthias.gutheil at informatik.uni-mannheim.de> wrote:

> Yes but the problem is, that C is context sensitive
> and I only have one 
> c-file and not all the included stuff.
> I had a try to change the C grammar, but thats a too
> hard task for me at 
> the moment.
> 
> -- Matthias
>  
> 
> Loring Craymer schrieb:
> > Hmm.  In cases where you have a complete grammar
> (and
> > for C, the ANTLR 2 C grammar stuff done by Monty
> and
> > others is definitely complete), I usually find it
> > better to take that and recognize everything but
> only
> > process what you need.  I would suggest modifying
> the
> > C grammar to build trees that only contain the
> methods
> > of interest and none of the stuff that you want to
> > ignore.  That gets you to a solution fast, and
> also
> > leaves room for extending the range of what you
> are
> > interested in later.
> >
> > --Loring
> >
> >
> > --- Terence Parr <parrt at cs.usfca.edu> wrote:
> >
> >   
> >> Hi.  See the filter example, which does it all in
> >> the lexer.  Have a
> >>
> >> EVERYTHINGELSE : . ;
> >>
> >> rule at bottom to skip everything but your rules
> of
> >> interest.
> >> Ter
> >> On Oct 21, 2006, at 4:54 AM, Matthias Gutheil
> wrote:
> >>
> >>     
> >>> Hello,
> >>>
> >>> I am writing a fuzzy C grammar and I am only
> >>>       
> >> interesting in methods  
> >>     
> >>> with parameters and return values.
> >>>
> >>> The method definition is not the problem, but I
> >>>       
> >> want to skip  
> >>     
> >>> anything else.
> >>> For example something like (method | ~method)
> >>>       
> >> doesn't work, cause  
> >>     
> >>> so the first token af a real method (return type
> >>>       
> >> or name) goes in  
> >>     
> >>> ~method.
> >>>
> >>> Some tips?
> >>>
> >>> Matthias
> >>>       
> >>     
> >
> >
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> 
> 


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