Scheme--? (was: Purify'd scheme(s) etc.)

[Olivier Danvy <danvy@daimi.aau.dk>]

> This is how SCM restores continuations.  This would not occur in GEL
> as RMS has outlined it, since he wants only escape continuations
> 
Only escape continuations?  That's not Scheme.  This feature was not
explicitly mentioned in rms's original posting on GNU Extension Language
Plans:
> 
> ** Convenient fast exception handling, and catch and throw.


By the same token, Scheme also insists on proper tail-recursion, which
is not trivial to achieve in the presence of dynamic binding.
> 
> ** Cheap built-in dynamic variables (as well as Scheme's lexical variables).


Just my $0.02,	-- Olivier