LEAP(ID:3304/lea005)

A subset of SAIL (which was extension of LEAP) Essentially LEAP formalised as a susection of sail (1970 Stanford)
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Related languages
SAIL => LEAP   Subset
LEAP => AMBIT/G   Written using
References:
  • Rovner, Paul D. and Henderson, D. Austin. "On the implementation of AMBIT/G: a graphical programming language." view details Abstract: This paper deals with the implementation of an interactive graphical programming language for the manipulation of directed graphs.   Interesting aspects of the design and a user's view of the facilities are presented. The language is a modified version of AMBIT/G; a brief description of AMBIT/G is contained in the introduction.
          in Donald E. Walker, Lewis M. Norton (Eds.): Proceedings of the 1st International Joint Conference on Artificial Intelligence IJCAI-69, Washington, DC, May 1969. William Kaufmann, 1969 view details
  • Sammet, Jean E. "Roster of Programming Languages for 1973" p147 view details
          in ACM Computing Reviews 15(04) April 1974 view details
  • Van Lehn, Kurt A "SAIL user manual" Department of Computer Science Stanford University, July 1973 view details Abstract: Report Number: CS-TR-73-373
    Institution: Stanford University, Department of Computer Science
    Title: SAIL user manual.
    Author: VanLehn, Kurt A.
    Date: July 1973
    Abstract: SAIL is a high-level programming language for the PDP-10 computer. It includes an extended ALGOL 60 compiler and a companion set of execution-time routines. In addition to ALGOL, the language features: (1) flexible linking to hand-coded machine language algorithms, (2) complete access to the PDP-10 I/O facilities, (3) a complete system of compile-time arithmetic and logic as well as a flexible macro system, (4) user modifiable error handling, (5) backtracking, and (6) interrupt facilities. Furthermore, a subset of the SAIL language, called LEAP, provides facilities for (1) sets and lists, (2) an associative data structure, (3) independent processes, and (4) procedure variables. The LEAP subset of SAIL is an extension of the LEAP language, which was designed by J. Feldman and P. Rovner, and implemented on Lincoln Laboratory's TX-2 (see [Feldman & Rovner, "An Algol-Based Associative Language," Communications of the ACM, v.12, no. 8 (Aug. 1969), pp.439-449]). The extensions to LEAP are partially described in "Recent Developments is SAIL" (see [Feldman et al., Proceedings of the AFIPS Fall Joint Computer Conference, 1972, pp. 1193-1202]). This manual describes the SAIL language and the execution-time routines for the typical SAIL user: a non-novice programmer with some knowledge of ALGOL. It lies somewhere between being a tutorial and a reference manual.
    pdf
          in ACM Computing Reviews 15(04) April 1974 view details
  • Sammet, Jean E "Roster of programming languages for 1976-77" pp56-85 view details
          in SIGPLAN Notices 13(11) Nov 1978 view details
  • Pfenning, F. and P. Lee. LEAP: A language with eval and polymorphism. In Tapso]t, 1988. view details
          in SIGPLAN Notices 13(11) Nov 1978 view details