[Haskell] Context of a pattern variable

Malcolm Wallace Malcolm.Wallace at cs.york.ac.uk
Wed Jan 12 06:31:18 EST 2005

Tomasz Zielonka <tomasz.zielonka at gmail.com> writes:

> I have an idea for a funny extension to pattern matching in Haskell. I
> wonder if it was proposed before, and most importantly, if it would be seen
> as useful.

Yes, it has been proposed before.  See

    Marcus Mohnen, "Context Patterns", Proceedings of IFL'96 (LNCS 1268)
    Marcus Mohnen, "Context Patterns II", Proceedings of IFL'97 (LNCS 1467)


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