SNOBOL4
<language> 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].
