oundtrip allows the definition of bidirectional (de-)serialization specifications. The specification language is based on the ideas described in the paper Invertible Syntax Descriptions: Unifying Parsing and Pretty Printing by Tillmann Rendel and Klaus Ostermann, Haskell Symposium 2010.

This package does not provide concrete instances of the specification classes, see the packages roundtrip-string and roundtrip-xml instead.

The package contains slightly modified code from Tillmann Rendel's partial-isomorphisms and invertible-syntax packages (Copyright (c) 2010-11 University of Marburg).