> On May 14, 2018, at 6:55 AM, Denis Michiels <dmichi...@mailoo.org> wrote:
>
> Hello,
>
> I'm trying to build a macro to be able to do :
>
> ```
> (define data (list (cons 'label "My button")
> (cons 'stretchable-width #t)))
>
> (my-macro button% data)
> ```
>
> to be translated in :
>
> ```
> (new button% [label "My button"] [stretchable-width #t])
> ```
>
> (I take gui example, and incomplete (like no frame) but it is to show my
> goal)
>
> Unfortunately, I didn't manage well macro in Racket...
> Can someone help me, or have a hint how to manage this macro?
>
#lang racket/gui
(define data '((label "My button") (stretchable-width #t)))
(define-syntax (mk-but stx)
(syntax-case stx ()
[(_ data)
#'(let ()
(match-define (cons label others) data)
(define button (make-object button% (second label) frame))
(for ((o others))
(match-define (list m val) o)
(dynamic-send button m val)))]))
(define frame (new frame% [label "test"]))
(mk-but data)
(send frame show #t)
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