Catspaw, Inc. provides the Snobol4 language for many different computer platforms, including DOS, Macintosh, Sun, RS/6000, and others. Snobol4 is a programming language tailored to complex pattern matching and text manipulation. Spitbol is a very high performance, 32-bit implementation of the Snobol4 language.

Snobol is a special purposed language developed to provide a powerful means of doing character string manipulation. Accordingly Snobol has a collection of powerful operations for doing string pattern matchings. The most common early application of Snobol was to write text editors. Because of the dynamic nature of Snobol and its interpreter implementation, it is now considered too slow for such applications. Infact Snobol is now close to being completely unused.