LISP 2

LISP 1.5 with an ALGOL 60-like surface syntax. Also

optional type declarations, new data types including

integer-indexed arrays and character strings, partial-word

extraction/insertion operators and macros. A

pattern-matching facility similar to COMIT was proposed.

Implemented for the Q-32 computer.

["The LISP 2 Programming Language and System", P.W. Abrahams

et al, Proc FJCC 29:661-676, AFIPS (Fall 1966).]