Re: [Chicken-users] destructuring-bind?

[John Cowan]

Elliot Cuzzillo scripsit:

> Coming from CL, I'm used to having macro definitions use
> destructuring-bind in their argument lists, so that if we have
> (defmacro blah ((x y) z) ...) then if you call (blah (fee fi) fo) then
> x => fee, y => fi, and z=> fo.
> Does this exist in Chicken's macros, or elsewhere in Chicken?

Syntax-rules and its generalization syntax-case provide the equivalent
facilities in Scheme, and Chicken provides them both if you say
(use syntax-case), either at compile-time or in the interpreter.

There is an excellent tutorial on syntax-rules called "JRM's
Syntax-rules Primer for the Merely Eccentric".  Its normal home
is http://home.comcast.net/~prunesquallor/macro.txt , but it
seems to be offline at the moment, so I have uploaded a copy to
http://home.ccil.org/~cowan/temp/macro.txt .

-- 
May the hair on your toes never fall out!       John Cowan
        --Thorin Oakenshield (to Bilbo)         address@hidden