Re: define-macro bug?

[Ittai Balaban <ittai@mrl.nyu.edu>]

Things are clearer (excluding the 'S-expression macros from the
alchemists days of macro usage', which, I assume is from before my
time).

Thanks.

Ittai

>   Welcome to DrScheme, version 200alpha17-cvs23apr2002.
>   Language: Full.
>   > (module a mzscheme 
>       (require (lib "defmacro.ss"))
>       (provide egg)
>       (define foo 'in-a)
>       (define-macro egg (lambda (x) 'foo)))
>   > (module b mzscheme
>       (require a)
>       (define foo 'in-b-because-these-macros-are-neither-hygienic-nor-scope)
>       (display (egg 5))
>       (newline))
>   > (require b)
>   in-b-because-these-macros-are-neither-hygienic-nor-scope
> 
> or 
>  
>   Welcome to DrScheme, version 200alpha17-cvs23apr2002.
>   Language: Full.
>   > (define foo 'in-b-because-these-macros-are-neither-hygienic-nor-scope)
>   > (define-macro egg (lambda (x) 'foo))
>   > (display (egg 5))
>   in-b-because-these-macros-are-neither-hygienic-nor-scope
> 
> Again the key is that macros and values are phase separated. If you want
> foo, think S-expression macros from the alchemists days of macro usage. 
> 
> -- Matthias