What is husk?
husk is a practical implementation of the Scheme programming language for the Haskell Platform. A superset of the R5RS standard is provided, along with most of the R7RS standard. Advanced features include:
- First-class continuations of unlimited extent
- Hygienic macros based on syntax-rules
- Low-level explicit renaming macros
- Library syntax from the R7RS standard
- A foreign function interface (FFI) to Haskell
- Full numeric tower providing support for real, rational, and complex numbers
- Proper tail recursion and lexical scoping
- Read-Eval-Print-Loop (REPL) interpreter, with input driven by Haskeline to provide a rich user experience
- Standard library of Scheme functions, and support for many popular SRFI's
Husk may be used as either a stand-alone interpreter or as an extension language within a larger Haskell application, and is available under the MIT license.
Scheme is one of two main dialects of Lisp. Scheme follows a minimalist design philosophy, with the core language consisting of a small number of fundamental forms. Scheme is an excellent language for writing small, elegant programs, and may also be used to develop domain-specific languages or embed scripting functionality within a larger application.