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Language peer sets for REXX: United Kingdom↑ United Kingdom/1979↑ Designed 1979 ↑ 1970s languages ↑ Fourth generation↑ High Cold War↑ String and List Processing ↑ String and List Processing/1979↑ String and List Processing/uk ↑ REXX(ID:868/rex001)alternate simple viewCountry: United Kingdom Designed 1979 Published: 1979 Sammet category: String and List Processing Restructured EXtended eXecutor. M. Cowlishaw, IBM ca. 1979. (Original name: REX. They also call it "System Product Interpreter"). Scripting language for IBM VM and MVS systems, replacing EXEC2 a procedural language that allows programs and algorithms to be written in a clean form. It is easy to use by experts and casual users alike. REXX has been designed to make easy the manipulation of the kinds of symbolic objects that people normally deal with such as words or numbers. REXX has the capability to issue commands to it's host environment and to call programs and functions written in other languages. REXX is also designed to be independent of it's supporting system software when such commands are kept to a minimum. Designed by Michael Cowlishaw, IBM (UK). from Cowlishaw "This new language, initially called REX (because the name sounded nice) was very much driven by the desire to make programming easy. It borrows most of its features from other languages, especially PL/I and EXEC 2, but these features are modified or expressed in ways that make them easy to use (but not necessarily easy to implement!). The code fragment shown above would look quite different; literal strings are quoted, but language keywords and variable names are not obfuscated by special characters: 'COPYFILE' fname ftype fmode '= BACKUP =' if rc>0 then say 'Copy failed with return code' rc This difference between the two languages becomes more striking as the complexity of the program increases. The first specification for the language is dated 29 March 1979. This was written before any implementation was even designed, and it was circulated to a number of people for comment: this began the tradition of documentation before implementation that characterized the development of Rexx. This first specification included three sample programs written in Rexx to show how the language would look; those programs would seem familiar to today's Rexx programmers, although some details have changed. " People: Structures: Related languages
References: in (1994) Annals of the History of Computing 16(4) Winter 1994 in (1994) Annals of the History of Computing 16(4) Winter 1994 in (1994) Annals of the History of Computing 16(4) Winter 1994 Resources Search in: Google Google scholar World Cat Yahoo Overture DBLP Monash bib NZ IEEE ACM portal CiteSeer CSB ncstrl jstor Bookfinder |