The primitive string manipulation (PRISM) language
Michael P. Barnett · ACM SIGPLAN Notices · 1985
This note describes a set of primitives that seem to provide the basis of a general system of string manipulation. The author is using these in some simulation experiments and in instructional material that he is developing. He would appreciate citations to any prior work that uses the same set of primitives, or which has strong similarities to the PRISM approach. Individual details of PRISM have obvious resemblances to particular features of some well known programming languages and formal systems. The precise combination of primitives in PRISM, however, have capabilities that do not seem to be known generally, including possible use in the design of artificial intelligence machines.