Re: RnRS/Guile multi-let binding?

[Clifford Beshers <beshers at cs dot columbia dot edu>]

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   From: Jim Blandy <jimb@red-bean.com>
   Date: 23 Sep 1999 18:10:33 -0500
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   > Is there any standard way to do a binding like this:
   > 
   > (multi-let ((label action image-left)
   >             (menu-item-properties menuitem))
   >      ... code using bindings of label action image-left ...
   > 
   > I know this is easy to do (using rewrite to lambda where the actual args
   > are the second list of elements), but is there some standard technique
   > or module?  It comes up a lot when decomposing lists and trying to write
   > readable Scheme code.

   Somebody whose name escapes me did a nice pattern-matching package for
   Scheme.  I want to snarf it for Guile; pattern matching is so nice.

I use Andrew Wright's.  I may have even ported it to an old version of
guile, thought that's not a big deal if you use the slib version.  You
can get a copy at the Internet Scheme Repository.

   http://www.cs.indiana.edu/scheme-repository/

Or you can get it directly from Andrew's page, along with other goodies.

   http://www.intertrust.com/star/wright/code.html


Cliff

-- 
Clifford Beshers                     Computer Graphics and User Interfaces Lab
beshers@cs.columbia.edu                         Department of Computer Science
http://www.cs.columbia.edu/~beshers                        Columbia University