ALGOL X
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ALGOL X was the code name given to the programming language which the Working Group 2.1 on ALGOL of the International Federation for Information Processing was to develop as a successor to ALGOL 60. It attempted to find a "short-term solution to existing difficulties".
"... the Algol 60 devotees had not been idle... they set out to eliminate the dreaded Remaining Trouble Spots. They called their Algol 60 "Modified". - R. de Morgan. - Jul 1977 Title "The Algollers"
One ALGOL X compiler is known to have existed, it was written with the AED-0 (Automated Engineering Design) System by D.T. Ross of MIT.
Example class definition: (An extract from AB26.2.2)
class expression is constant (real value) ora variable (string printname)
ora class pair is (sum ora difference ora product
ora quotient)((expression) left operand, right operand, derivative);
Example class usage:
(expression) X; (constant) Y; (pair) Z; (product) Q;
X := Y:= constant(10.5);
Z := Q := product(variable("ALPHA"), constant(2.), constant(2.))
[edit] The ALGOL Bulletin on ALGOL X
- AB21.3.1 - G. Seegmuller: Some proposals for ALGOL X [1]
- AB21.3.2 - Joachim von Peschke: Proposals for ALGOL X [2]
- AB22.3.2 - J.N. Merner: Own concept and ALGOL X [3]
- AB22.3.10 - M. Woodger: ALGOL X, Note on the proposed successor to ALGOL 60 [4]
- AB25.0.1 - ALGOL Bulletin - ALGOL X [5]
- AB26.2.2 - D. T. Ross: Features essential for a workable ALGOL X [6]
