Lisp 1.5

The second version of Lisp, successor to LISP 1. Developed at MIT in 1959. Followed by LISP 1.75, LISP 1.9, Lisp 2 and many other versions.


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  • 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 […]

  • Lisp70

    A Lisp dialect descended from MLISP and MLISP2. Also known as PLISP and VEL. Useful for parsing. Only the pattern-matching system was published and fully implemented. According to Alan Kay, LISP70 had an influence on Smalltalk-72. “The LISP70 Pattern Matching System, Larry Tesler et al, IJCAI 73.

  • Lisp a

    “LISP A: A LISP-like System for Incremental Computing”, E.J. Sandewall, Proc SJCC 32 (1968).

  • Lisped

    [lisp] /lɪsp/ noun 1. a speech defect consisting in pronouncing s and z like or nearly like the th- sounds of thin and this, respectively. 2. Phonetics. any unconventional articulation of the sibilants, as the pronunciation of s and z with the tongue between the teeth (lingual protrusion lisp) close to or touching the upper […]

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