(Named after the logician haskell curry) A lazy purely functional language largely derived from miranda but with several extensions. Haskell was designed by a committee from the functional programming community in April 1990. It features static polymorphic typing, higher-order functions, user-defined algebraic data types, and pattern-matching list comprehensions. Innovations include a class system, systematic operator overloading, a functional i/o system, functional arrays, and separate compilation.

Haskell 1.3 added many new features, including monadic i/o, standard libraries, constructor classes, labeled fields in datatypes, strictness annotations, an improved module system, and many changes to the Prelude.

gofer is a cut-down version of Haskell with some extra features.

filename extension: .hs, .lhs (literate programming).

home.

["Report on the Programming Language Haskell Version 1.1", Paul Hudak & P. Wadler eds, CS Depts, U Glasgow and Yale U., Aug 1991].

[Version 1.2: SIGPLAN Notices 27(5), Apr 1992].

haskell 1.3 report.

Mailing list: <haskell-request@cs.yale.edu>.

Yale Haskell - Version 2.0.6, Haskell 1.2 built on common lisp.

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Glasgow Haskell (GHC) - Version 2.04 for dec alpha/osf2; hppa1.1/hpux9,10; sparc/sunos 4, solaris 2; mips/irix 5,6; intel 80386/linux,solaris 2,freebsd,cygwin 32; powerpc/aix. GHC generates c or native code.

E-mail: <glasgow-haskell-request@dcs.glasgow.ac.uk>.

Haskell-B - Haskell 1.2 implemented in lml, generates native code.

E-mail: <hbc@cs.chalmers.se>.