An Algol-Based Implementation of SNOBOL 4 Patterns CACM July, 1977 Brownlee, J. N. patterns SNOBOL 4, pattern matching, string processing, pattern implementation, algorithms in Pascal 4.29 CA770710 JB December 28, 1977 8:15 AM 2942 5 2942 2942 5 2942 2942 5 2942