Re: [Chicken-users] hygienic macros

[Felix Winkelmann]

Peter Keller wrote:
> Excuse me if I'm naive here, but what is the difference between
> syntax-case and define-syntax(and associated let-syntax, syntax-rules,
> etc.) stuff in the R5RS report?

`syntax-case' let's you evaluate arbitrary expressions inside
macro-expanders, while still being hygienic. Check out:

ftp://ftp.cs.indiana.edu/pub/scheme-repository/doc/pubs/iucstr356.ps.gz

Chicken uses an old version of this macro expander.


cheers,
felix