A standard approach to handling finite state automata in perl is to use regexes. In general, there is an equivalence between deterministic finite automata (DFA), nondeterministic finite automata (NFA) and classical computer science regular expressions. Perl regexes have classical regexes as a subset of their operations, so it is possible write any accepting/non-accepting FSA as a perl regex.

If you want to walk the FSA graph on your own, then in addition the DFA modules mentioned above, it will pay to check out the Graph modules. They make it very easy to set up a graph structure and execute a program on it. These modules are described in detail in the book "Mastering Algorithms in Perl".

-Mark

In reply to Re: Finite State Automata / Transducers by kvale
in thread Finite State Automata / Transducers by pike

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.