This is a free port of the original SIL (SNOBOL4 Implementation Language)
macro version of SNOBOL4 (developed at Bell Labs) with the C language as
target.

SNOBOL4, while known primarily as a string language excels at any task
involving symbolic manipulations.  It provides run time typing, garbage
collection, user data types, on the fly compilation.  Its primary weakness
is its simple syntax, and lack of "structured programming" constructs.
However some consider the spareness of SNOBOL4 syntax a strength when
compared to some "modern" agglomerations such as perl.

WWW: http://www.snobol4.org/