Hugs

Hugs 98
Developer(s) Mark P. Jones, others
Stable release September 2006 / September 21, 2006; 5 years ago (2006-09-21)
Operating system Cross-platform
Type Compiler
License BSD
Website Hugs 98 homepage

Hugs (Haskell User's Gofer System), also Hugs 98, is a bytecode interpreter for the functional programming language Haskell. Hugs is the successor to Gofer, and was originally derived from Gofer version 2.30b.[1] Hugs and Gofer were originally developed by Mark P. Jones, now a professor at Portland State University.

Hugs comes with a simple graphics library. As a complete Haskell implementation that is portable and simple to install, Hugs is sometimes recommended for new Haskell users.

Hugs deviates from the Haskell 98 specification[2] in several minor ways.[3] For example, Hugs does not support mutually recursive modules.

The Hugs prompt (a Haskell REPL) accepts expressions for evaluation, but not module, type or function definitions. Hugs can load Haskell modules at start-up.[4]

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