SNOBOL4

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SNOBOL4

A quite distinct descendant of SNOBOL, developed by Griswold et al in 1967. SNOBOL4 is declarative with dynamic scope. Patterns are first-class data objects that can be constructed by concatenation and alternation. Success and failure are used for flow control. Delayed (unevaluated) expressions can be used to implement recursion. It has a table data type. Strings generated at run time can be treated as programs and executed.

See also vanilla.

SNOBOL 4 (http://www.snobol4.org/).

(ftp://apple.com/ArchiveVol1/Unix_lang).

["The SNOBOL4 Programming Language", Ralph E. Griswold et al, P-H 1971].

(2004-04-29)