5 links
Macro Implementation of SNOBOL4 in C
snobol4.org
A port of Macro SNOBOL4 (The original Bell Telephone Labs implementation, written in SIL macros) for machines with 32-bit (or larger) pointers. Supports full SNOBOL4 language plus…
SNOBOL4+ user notes
sachsdavis.clara.net
Information for people having documentation for the Vanilla SNOBOL programming language and wishing to use SNOBOL4+. By Michael Davis.