The LISP 2 programming language and system

Abrahams, Paul; Barnett, Jeff; Book, Erwin; Firth, Donna; Kameny, Stanley L.; Weissman, Clark; Hawkinson, Lowell; Levin, Michael; Saunders, Robert A.

doi:10.1145/1464291.1464362

Cited by 12 publications

(6 citation statements)

References 2 publications

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“…He deals only with objects of the language which have the right properties -e. g. , access to the second 1-bit field gets the desired value. This differs from the approach taken in LISP 2 [8] where the programmer deals explicitly with the bit packing himself.…”

Section: Data Type Extensionsmentioning

confidence: 94%

The ECL Programming System

Wegbreit¹

1971

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ECL is a programming language system designed to provide an environment conducive to effective programming. It consists of a programming language and a system built around that language to serve as a tool and vehicle for program manufacture. The language contains comprehensive data types, operators, control structures and storage management. The system is oriented to interactive program composition and debugging with smooth transition to efficient compiled code. Most important, the system allows the programmer to tailor the environment to suit his needs.

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Section: Data Type Extensionsmentioning

confidence: 94%

The ECL Programming System

Wegbreit¹

1971

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“…In some cases this was driven by the desire to emulate styles of programming found in ALGOL-like languages [Abrahams 1966] and by the fact that, although some compilers would sometimes optimize tail-recursive calls, the programmer could not rely on this until the era of good Scheme and Common Lisp compilers in the 1980s, so performance was an issue.…”

Section: Iterationmentioning

confidence: 99%

“…Abrahams et al remark that by 1966 macros were an accepted part of Lisp 1.5 as well [Abrahams 1966].…”

Section: (Cadr Form) )mentioning

confidence: 99%

“…The ARPA-supported LISP 2 project aimed at providing Lisp with a syntax resembling that of ALGOL 60, citing the advantage that "ALGOL algorithms can be utilized with little change" [Abrahams 1966]. LISP 2 code for UNION in the style of our running example would look like this: (Of course, this version produces a result that is different when regarded as a list, although the same when regarded as a set.)…”

Section: (Define Union (Of And) (8) (Union Of X and Y) (If X Is ]Imptmentioning

confidence: 99%

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The evolution of Lisp

Steele

Gabriel

1996

History of Programming Languages---Ii

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“…From another point of view, one can ignore the implementation and take BUFFER as an abstract set of data types with certain properties. (2) The notion of underling representation has a natural extension. We have jut used the mode STRUCT (FRONT INT,BACK:INT, BODY:VECTOR(200,CHAR)) as a basis for defining RB so that the former is the underlying representation of the latter; we could equally well use an RB as a basis for defining a new mode, for which RB would be the underlying representation.…”

Section: Communicationsmentioning

confidence: 99%

The treatment of data types in EL1

Wegbreit

1974

Commun. ACM

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In constructing a general purpose programming language, a key issue is providing a sufficient set of data types and associated operations in a manner that permits both natural problem-oriented notation and efficient implementation. The ELI language contains a number of features specificatly designed to simultaneously satisfy both requirements. The resulting treatment of data types includes provision for programmer-defined data types and generic routines, programmer control over type conversion, and very flexible data type behavior, in a context that allows efficient compiled code and compact data representation. The present version of ELI in the ECL programming system runs on the PDP-10 under the TOPS and TENEX monitors. Versions for other machines are contemplated.

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The LISP 2 programming language and system

Cited by 12 publications

References 2 publications

The ECL Programming System

The ECL Programming System

The evolution of Lisp

The treatment of data types in EL1

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