Interesting: "Lisp as a competitive advantage"

[Mieszko Lis]

Tim Sauerwein wrote:
>           I once wrote a macro to help express pattern-matching rules.
> In these rules, variables that began with a question mark were treated
> specially.

David Gifford's Programming Languages class at MIT uses Scheme+, a variant
of MIT Scheme with datatypes and pattern matching.  These extensions are
implemented as macros. (http://tesla.lcs.mit.edu/6821)

But of course Haskell has those already :)

-- Mieszko