On Tue, 2007-05-01 at 13:01 -0700, Erick Tryzelaar wrote:
> skaller wrote:
> One smallish thing I'd like to see is that we really do have a ton of
> keywords, and I don't think all of them are really used. I think we may
> have 2-3 times as many keywords as the other major languages. Perhaps we
> could eliminate some.
I am thinking to change all keyword to _keyword.
Then use syntax extension feature of some kind to re-enable them.
So a teacher might conveniently not define goto _goto .. thereby
making it impossible for a dumb student to accidentally use
a goto statement .. :)
However, I'm also looking at dypgen to replace Ocamlyacc.
Dypgen is an *extensible* GLR parser, i.e. it can not only
use GLR grammars, you can dynamically extend them in a scoped
way on the fly.
So for example we might be able to do
module X {
statement while expr do statements done #=> ...;
}
without the current hackery. In particular
open X;
could make the syntax extensions available, instead of
#import <something.flxh>
we have to use now (and which doesn't work so well!)
Changing the packaging system is something to look at,
all the includes and headers etc are too hard -- I can't
get the right myself :)
--
John Skaller <skaller at users dot sf dot net>
Felix, successor to C++: http://felix.sf.net
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