On 5/19/05, Greg Buchholz <[EMAIL PROTECTED]> wrote:
>
> Are hygienic macros incompatible with the pattern matching as
> described in...
>
> http://www.call-with-current-continuation.org/manual/Unit-match.html
>
> ...When I use the "-hygienic" option, I get an error like...
>
> Error: unbound variable: a
>
> ...for this piece of code...
>
> (display (match-let (((a b c) (list 1 2 3)))
> (+ a b c)))
>
> ...Which works perfectly with no hygiene option specified.
>
>
> Thanks,
>
> Greg Buchholz
>
When you use hygienic rules you must (require 'match) explicitely.
I have pointed out the same issue to Felix a while ago, there also
other subtle differences between the two macro systems. You should
browse in the mailing list history for more (or maybe there is already
somewhere a page listing all the differences? if not, I should write one ;)
Michele Simionato
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