ALGOL Y

ALGOL Y was the name given to a speculated successor for the ALGOL 60 programming language that incorporated some radical features that were rejected for ALGOL 68 and ALGOL X. ALGOL Y was intended to be a "radical reconstruction" of ALGOL.

One such feature was the possibility to construct new proc mode's at run-time, which was criticized as the ability to modify its own programs at run time while, on the other hand, it would have brought ALGOL Y to the same level of expressiveness as LISP.

"Initially the proposal for an update to Algol was Algol X, with Algol Y being the name reserved for the corresponding metalanguage. Van Wijngaarden produced a paper for the 1963 IFIP programming language committee, entitled “Generalized Algol,” which contained the basic concepts which were eventually incorporated into Algol 68."[1]

See also

• ALGOL 60
• ALGOL 68

References

• http://archive.computerhistory.org/resources/text/algol/ACM_Algol_bulletin/1061688/p8-de_morgan.pdf
• ALGOL X and ALGOL Y - Lambert Meertens - CWI Lectures in honour of Adriaan van Wijngaarden - November 2016