(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
["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 (http://haskell.cs.yale.edu/haskell-report/haskell-report.html).
Mailing list: .
Yale Haskell - Version 2.0.6, Haskell 1.2 built on Common Lisp.
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.
Haskell-B - Haskell 1.2 implemented in LML, generates native code.