Re: Syntax directed compilation

"Aaron Gray" <ang.usenet@gmail.com> writes:


> "Barry Kelly" <barry.j.kelly@gmail.com> wrote in message
>>I recall, a long time back on this group, people pointing out that
>> languages supporting redefinable or user extensible grammars have
>> never taken off, and that like heavy armour on insects, it's a feature
>> more notable of the extinct than the extant.


> Dylan is worth looking at it has a macro system that gives a frontended
> approach.
>
> http://www.opendylan.org/books/drm/
...
> No, it just a very difficult thing to do and get right in a language. It
> really needs a proper archetecture and/or an "open compiler", to coin a
> term.


Actually, the term open compiler has an established meaning which may
or may not suit the original posters needs, but I suspect OpenDylan is
following this concept, which comes out of the lisp community and the
Meta-Object Protocol and evolved into aspect oriented
programming--that is if I have my terms right. There was even an
OpenC++ implementation if I recall correctly. The name this is
associated with in my mind is Gregory Kikzales. I believe some of
this work became mainstream as "reflection".


This is not my area (although I really like what I've read about
AspectJ, and hope to someday incorporate aspect oriented ideas into
Yacc++), so I may have muddled three or more unrelated things
together.


Hope this helps,
-Chris


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