scheme

n 1: an elaborate and systematic plan of action [syn: {strategy}]

2: a statement that evades the question by cleverness or

trickery [syn: {dodge}, {dodging}]

v 1: form intrigues (for) in an underhand manner [syn: {intrigue},

{connive}]

2: devise a system or form a scheme for

Scheme

(Originally "Schemer", by analogy with {Planner} and

{Conniver}). A small, uniform {Lisp} dialect with clean

{semantics}, developed initially by {Guy Steele} and {Gerald

Sussman} in 1975. Scheme uses {applicative order reduction}

and is {lexically scoped}. It treats both functions and

{continuation}s as {first-class} objects.

Implementations include {Bigloo}, {Elk}, {Liar}, {Orbit},

{Scheme86} (Indiana U), {SCM}, {MacScheme} (Semantic

Microsystems), {PC Scheme} (TI), {MIT Scheme}, {T}.

See also {Kamin's interpreters}, {PSD}, {PseudoScheme},

{Schematik}, {Scheme Repository}, {STk}, {syntax-case}, {Tiny

Clos}, {Paradigms of AI Programming}.

There have been a series of revisions of the report defining

Scheme, known as {RRS} (Revised Report on Scheme), {R2RS}

(Revised Revised Report ..), {R3RS}, {R3.899RS}, {R4RS}.

acorn.cs.brandeis.edu/dist/gambit1.51-tar.Z (compiler for

68000's)

ux1.cso.uiuc.edu/amiga/fish/f7/ff764 (Gambit compiler for

Amiga)

Mailing list: scheme◊mc.lcs.mit.edu.

IEEE P1178-1990, "IEEE Standard for the Scheme Programming

Language", ISBN 1-55937-125-0.