[plt-scheme] scribble ultra beginner: macros

Eric Tanter wrote:
> Another one:
> 
> The following simple/useless macro works, but I cannot include it in a @schemeblock:
> 
> #lang scheme
> 
> (define-syntax FOO
>   (lambda (stx)
>     (syntax-case stx ()
>       ((FOO val)
>        (let ((name (datum->syntax stx 'y)))
>          #`(let ((#,name val))
>              #,name))))))
> 
>> (FOO 10)
> 10
> 
> when I try to put it in a schemeblock:
> 
> @schemeblock[
> (define-syntax FOO
>   (lambda (stx)
>     (syntax-case stx ()
>       ((FOO val)
>        (let ((name (datum->syntax stx 'y)))
>          #`(let ((#,name val))
>              #,name))))))
> ]
> 
> I get an error: 
> 
> Users/etanter/Develop/Scheme/Scribble/test.scrbl:46:20: compile: unbound identifier in module in: name
> 
>  === context ===
> /Applications/_Extra/Devel/PLT Scheme v4.2.5/collects/scheme/private/map.ss:18:11: map
> /Applications/_Extra/Devel/PLT Scheme v4.2.5/collects/scribble/run.ss: [running body]
> /Applications/_Extra/Devel/PLT Scheme v4.2.5/collects/scribble/tools/drscheme-buttons.ss:24:3
> /Applications/_Extra/Devel/PLT Scheme v4.2.5/collects/scheme/private/more-scheme.ss:158:2: call-with-break-parameterization
> /Applications/_Extra/Devel/PLT Scheme v4.2.5/collects/scheme/private/more-scheme.ss:274:2: call-with-exception-handler
> 
> what am I doing wrong here?

@schemeblock uses #, as an escape, so that you can insert computed text 
into code snippets.

Try using @SCHEMEBLOCK instead.

Ryan