SAIL user manual.
Kurt A. VanLehn · 1973
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 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 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 language and the execution-time routines for the typical user: a non-novice programmer with some knowledge of ALGOL. It lies somewhere between being a tutorial and a reference manual.