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
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