Re: [Chicken-users] alexpander egg bug, fix

[felix winkelmann]

On 11/20/06, Dan <address@hidden> wrote:
> The alexpander egg's setup file marks the extension as
> (syntax). It is not. The alexpander provides plain
> procedures for expanding macros (which are currently
> invisible). Removing the (syntax) mark fixes the
> problem.

The alexpander egg is certainly syntax, should work
as intended and modifies internal expansion hooks
when loaded.

> Is the author of the egg Al himself, or did someone
> else just package Al's code?

I packaged it.

> Another note: usage information is hidden in the
> sources (see comments at top of alexpander.scm, search
> for BASIC USAGE). The html file that gets installed
> (as well as the one on the website) doesn't describe
> the egg's interface.

It doesn't have to describe any interface, as it automatically
installs itself as the default macro-expansion mechanism.

% chicken-setup alexpander
 /usr/bin/csc -feature compiling-extension -s -O2 -d0 alexpander.scm
Warning: global variable `expand-program' is never used
 rm -fr /usr/lib/chicken/1/alexpander.so
 cp -r alexpander.so /usr/lib/chicken/1/alexpander.so
 cp -r alexpander.html /usr/lib/chicken/1/alexpander.html

* Installing documentation files in /usr/lib/chicken/1:

% csi -q
#;1> (use alexpander)
#;2> (define-syntax foo if)
#;3> (if #t 1)
1
#;4>
% cat foo.scm
(define-syntax foo if)
(if #t (print "ok"))% csc -R alexpander foo.scm
% foo
ok
%

Something must be wrong with your installation.


cheers,
felix

--
http://galinha.ucpel.tche.br:8081/blog/blog.ssp