|Portability||non-portable (uses existentially quantified data constructors)|
This module implements permutation parsers. The algorithm used
is fairly complex since we push the type system to its limits :-)
The algorithm is described in:
Parsing Permutation Phrases,
by Arthur Baars, Andres Loh and Doaitse Swierstra.
Published as a functional pearl at the Haskell Workshop 2001.
|data PermParser tok st a||Source|
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