I am trying to use a macro, y-coord, in the following way:
(struct point (x y))
(define points (list (point 25 25) (point 33 54) (point 10 120))
(map y-coord points)
I am expecting the result:
'(25 54 120)
and the error is "y-coord: bad syntax in: y-coord
Here is the macro:
(define-syntax y-coord
(syntax-id-rules (map)
[(map y-coord lst) (map (lambda (p)
(point-y p))
lst)]))
Can anyone help?
Thanks
--
You received this message because you are subscribed to the Google Groups
"Racket Users" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to racket-users+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.
