[plt-scheme] 'complement'[?] of map

I think you need compose.
(define (pam datum proc-list) ((apply compose proc-list) datum))
Jos
----- Original Message ----- 
From: "Stephen De Gabrielle" <stephen at degabrielle.name>
To: "pltscheme" <plt-scheme at list.cs.brown.edu>
Sent: Sunday, February 17, 2008 9:59 AM
Subject: [plt-scheme] 'complement'[?] of map


> HI,
>
> Is there a form that applies a series of functions to a piece of data
>
> eg (pam data-structure '( fn1 fn2 fn3 fn4 ))   [where fn is (lambda (x) 
> ...)]
> that computes:  (fn1 (fn2 (fn3 (fn4 data-structure))))
>
> I'm just begining to dip my toes in macros, so in the interests of
> lazyness I thought I'd better check I wasn't tryint to reinvent the
> wheel.
>
> Cheers,
>
> Stephen
>
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> Stephen De Gabrielle
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