Ruby

language

1. A relational language designed by Jones and M. Sheeran in

1986 for describing and designing circuits (a hardwaredescription language). Ruby programs denote binaryrelations and programs are built-up inductively from

primitive relations using a pre-defined set of relationaloperators. Ruby programs also have a geometric

interpretation as networks of primitive relations connected by

wires, which is important when layout is considered in circuit

design.

Ruby has been continually developed since 1986, and has been

used to design many different kinds of circuits, including

systolic arrays, butterfly networks and arithmetic

circuits.

.

E-mail: [email protected].

["Ruby - A Language of Relations and Higher-Order Functions",

M. Sheeran, Proc 3rd Banff Workshop on Hardware Verification,

Springer 1990].

(1994-10-27)

2. One of five pedagogical languages based on Markovalgorithms, used in Higman's report (below). The other

languages are Brilliant, Diamond, Nonpareil, and

Pearl.

["Nonpareil, a Machine Level Machine Independent Language for

the Study of Semantics", B. Higman, ULICS Intl Report No ICSI

170, U London (1968)].

(1994-10-27)

3. A fully object oriented interpreted scriptinglanguage by Yukihiro Matsumoto [email protected].

Similar in scope to Perl and Python, Ruby has high-level

data types, automatic memory management, dynamic typing,

a module system, exceptions, and a rich standard library.

Other features are CLU-style iterators for loopabstraction, singleton classes/methods and lexicalclosures.

In Ruby, everything is an object, including the basic data

types. For example, the number 1 is an instance of class

Fixnum.

Current version (stable): 1.6.7, as of 2002-03-01.

Ruby Home .

Ruby Central .

["Programming Ruby - The Pragmatic Programmer's Guide", David

Thomas, Andrew Hunt, Yukihiro Matsumoto pub. Addison Wesley

2000].

(2002-06-19)