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From The Free On-line Dictionary of Computing (05 January 2017) [foldoc]:
Clean
A lazy higher-order {purely functional
language} from the University of Nijmegen. Clean was
originally a subset of Lean, designed to be an experimental
intermediate language and used to study the {graph
rewriting} model. To help focus on the essential
implementation issues it deliberately lacked all {syntactic
sugar}, even infix expressions or complex lists,
As it was used more and more to construct all kinds of
applications it was eventually turned into a general purpose
functional programming language, first released in May 1995.
The new language is strongly typed (Milner/Mycroft type
system), provides modules and functional I/O (including a
WIMP interface), and supports parallel processing and
distributed processing on loosely coupled parallel
architectures. Parallel execution was originally based on the
PABC abstract machine.
It is one of the fastest implementations of functional
languages available, partly aided by programmer annotations
to influence evaluation order.
Although the two variants of Clean are rather different, the
name Clean can be used to denote either of them. To
distinguish, the old version can be referred to as Clean 0.8,
and the new as Clean 1.0 or Concurrent Clean.
The current release of Clean (1.0) includes a compiler,
producing code for the ABC abstract machine, a {code
generator}, compiling the ABC code into either object-code
or assembly language (depending on the platform), I/O
libraries, a development environment (not all platforms),
and documentation. It is supported (or will soon be
supported) under Mac OS, Linux, OS/2, Windows 95,
SunOS, and Solaris.
http://cs.kun.nl/~clean/. E-mail:
. Mailing list: .
["Clean - A Language for Functional Graph Rewriting", T. Brus
et al, IR 95, U Nijmegen, Feb 1987].
["Concurrent Clean", M.C. van Eekelen et al, TR 89-18, U
Nijmegen, Netherlands, 1989].
[Jargon File]
(1995-11-08)
From The Free On-line Dictionary of Computing (05 January 2017) [foldoc]:
clean
1. Used of hardware or software designs, implies "elegance in
the small", that is, a design or implementation that may not
hold any surprises but does things in a way that is reasonably
intuitive and relatively easy to comprehend from the outside.
The antonym is "grungy" or crufty.
2. To remove unneeded or undesired files in a effort to reduce
clutter: "I'm cleaning up my account." "I cleaned up the
garbage and now have 100 Meg free on that partition."
[Jargon File]
(1994-12-12)