Re: [Jscheme-user] macros

[Timothy J. H. <ti...@cs...>]

Ken Anderson is the best person to answer this question, but he is away
until 3/23....
---Tim---

On Mar 22, 2004, at 10:58 AM, Borislav Iordanov wrote:

> Hi all,
>
> I have a problem getting macros to work. As I understand, I need to 
> load
> the following two files:
>
> elf/eopl2/jscheme/genwrite.scm
> elf/eopl2/jscheme/psyntax-init.scm
>
> I do that and then try something simple like:
>
> (define-syntax swap
>   (syntax-rules ()
> 	((swap a b) (let ((tmp b)) (set! b a) (set! a tmp)))))
>
> Evaluating the last expression tells me "undefined variable
> 'define-syntax'".
>
> I also tried loading a the OO style code using/friedman-init.scm which
> makes heavy use of macros and I get an error saying that 'pretty-print'
> is not defined.
>
> This is with the latest code from CVS, patched not to set the current
> thread's classloader to Import.CLASSLOADER.
>
> I am quite a beginner in Scheme and I've never used macros, so the
> problem may be a really straightforward misunderstanding on my part.
>
> Thanks,
> Boris
>
>
>
> -------------------------------------------------------
> This SF.Net email is sponsored by: IBM Linux Tutorials
> Free Linux tutorial presented by Daniel Robbins, President and CEO of
> GenToo technologies. Learn everything from fundamentals to system
> administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click
> _______________________________________________
> Jscheme-user mailing list
> Jsc...@li...
> https://lists.sourceforge.net/lists/listinfo/jscheme-user