Why don't people like lisp?
Marcin 'Qrczak' Kowalczyk
qrczak at knm.org.pl
Fri Oct 24 19:31:02 CEST 2003
On Fri, 24 Oct 2003 02:18:38 +0000, prunesquallor wrote:
> CATCH and THROW are a restricted kind of continuation. The only allow
> transfer of control in one direction and the transfer can only take
> place once.
It's not enough to implement backtracking (or I'm really confused).
> If you are curious about how mapcar interacts, I suggest you download
> the screamer package from
It CPS-transforms all nondeterministic code. And from what I read I guess
my mapcar example would simply not work - funcall must be used on deter
ministic functions only, a lambda which uses "either" is nondeterministic,
and mapcar uses funcall internally or is equivalent - and is not handled
It must reimplement language constructs it wants to work with as I thought.
It shows how macros are useful for implementing a backtracking sublanguage
which looks like Lisp; it doesn't show how to add backtracking to an
;;; 6. Doesn't handle most CommonLisp special forms.
;;; Currently handle:
;;; Probably will never handle:
;;; CLtL1 obsolete:
;;; CLtL2 additions:
__("< Marcin Kowalczyk
\__/ qrczak at knm.org.pl
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