Source : Free On-Line Dictionary of Computing

PANON
     
        A family of pattern-directed string processing languages based
        on {generalised Markov algorithm}s.
     
        PANON-1 is based on {simple generalised Markov algorithm}s and
        PANON-2 on {conditional functional generalised Markov
        algorithm}s.
     
        ["String Processing Languages and Generalized Markov
        Algorithms", A. C. Forino, Proc IFIP Working Conf on Symb
        Manip Languages, pp.141-206, Amsterdam 1968].