An implementation of "A Categorical Programming Language"

This package is an implementation of "A Categorical Programming Language" (CPL for short)[1][2] written in Haskell.

CPL is a functional programming language based on category theory. Data types are declared in a categorical manner by adjunctions. Data types that can be handled include the terminal object, the initial object, the binary product functor, the binary coproduct functor, the exponential functor, the natural number object, the functor for finite lists, and the functor for infinite lists. Each data type is declared with its basic operations or morphisms. Programs consist of these morphisms, and execution of programs is the reduction of elements (i.e. special morphisms) to their canonical form.

Install

De-Compress the archive and enter its top directory. Then type:

$ cabal configure
$ cabal build
$ cabal install

If you want to compile with readline or haskeline, add -fReadline or -fHaskeline respectively to the configure command.

Usage

See chapter 5 of [1]

License

This program is licensed under the BSD-style license. (See the file COPYING.)

Copyright (C) 2004-2014 Masahiro Sakai masahiro.sakai@gmail.com

Author

Masahiro Sakai masahiro.sakai@gmail.com

Bibliography

1. Tatsuya Hagino, “A Categorical Programming Language”. Ph.D. Thesis, University of Edinburgh, 1987. available at http://web.sfc.keio.ac.jp/~hagino/index.html.en

2. Tatsuya Hagino, “Categorical Functional Programming Language”. Computer Software, Vol 7, No.1. Advances in Software Science and Technology 4, 1992. ISBN 0-12-037104-9.