To PARSE beyond.(REXX programming)(Tutorial)

Enterprise Systems Journal,  June, 1995  by Herridge, Walt

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There are a number of implementations of REXX language. Its functionality goes far beyond that of a command language, its power is especially useful for symbol manipulation, and it is viable for creation of artificial intelligence systems. One particularly powerful feature of REXX is the PARSE command, essential since REXX's data structure revolves around character strings.

REXX is word-oriented, and parsing breaks down a word string into usable components. There are two types of parsing in REXX, delimiting and columnar. Delimited parsing separates the components of the string according to the ...

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