Hi Simon
I only use macros sparingly, and sympathise with your struggles to develop
macro-fu.
Some simple macros can be written quite simply using define-syntax-rule/s
and aren't that much more complex than writing functions.
To milk a bit more from this example, here's a similarly themed function:
#lang racket
(define (hex/f hs)
(apply bytes
(for/list ([h hs])
(string->number (~a h) 16))))
(hex/f '(a b c 1 2 3 41 42 43)) ; #"\n\v\f\1\2\3ABC"
The (marginal) advantage of the macro, of course, is that we can omit the
quote from the function call.
Dan
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