hugs Sep2006 Functional programming system based on Haskell 98

Hugs 98 is an interpreter and programming environment for developing Haskell programs. It provides an almost complete implementation of Haskell 98, which includes expression and pattern syntax, primitives for monadic I/O, with support for simple interactive programs, handle-based I/O, and exception handling. Hugs has a nearly complete implementation of the Haskell module system and supports a number of advanced extensions.