Re: Google summer of code proposal

[William Candillon]

Hello,

Here is why I think yaxx would be great for the bison project:
The main advantage of yaxx is that one can get the full support for
the YACC grammar without any hand-coded programs in it. That makes it
fully reusable and supporting the language syntax features 100%.

For people who wants to build very quickly DSL, code refactoring tools
or just be able to use xslt as a language of source code
transformation tool, I believe that yaxx is the perfect tool.

If you have any question about my proposal, please let me know.

William

On 3/30/07, Akim Demaille <address@hidden> wrote:
> >>> "WC" == William Candillon <address@hidden> writes:
>
>  > Hello guys,
>  > I'm a 20 years old french engineering student at Telecom Lille 1.
>  > Last year I participated to the Google Summer of code for the php community.
>  > My project was phpAspect (http://phpaspect.org), a php language
>  > extension to implement Aspect-Oriented Programming.
>  > In order to generate parse tree for a php source code I used the Yaxx
>  > extension (http://code.google.com/p/yaxx/):
>  > http://phpaspect.org/images/weaving_chain.png
>
> I personally don't really understand the point of such a feature,
> because yaxx is LALR.  So your grammar is tortured, it is not faithful
> to what you actually have in mind.  Besides, quite often the grammar
> one has in mind is EBNF like, with repetitions that you wish to see as
> "real" lists rather that cons-lists.
>
> I use SDF/SGLR regularly, and they have this feature, but they run a
> GLR engine, and it makes much more sense: the grammar your tool eats
> is the grammar you want to work on.
>
> Now, since Bison has GLR, it might make more sense than before, yet, I
> am still not convinced.
>
> Can you explain what was nice in using Yaxx?


--
William Candillon
http://phpaspect.org