#!/usr/bin/perl
use strict;
use Algorithm::MarkovChain;

my $mc = Algorithm::MarkovChain->new();

unless (scalar(@ARGV) gt 0) 
  {
  die "usage: file [longest_chain(int)] [longest_output(int)]"
  };
my $infile = shift;
my $longest = shift;
my $outlength = shift;

unless ($longest > 2 and $longest < 10) {$longest = 3};
   # sensible constraints
unless ($outlength > 2 and $outlength < 20) {$outlength = 10};


if ($infile)
    {
        $| = 1;
        print "seeding from $infile\n";

        open IN, $infile;
        while (<IN>)
        {
            $mc->seed(symbols => [m/(\S+)/g],
                  longest => $longest);
            print "\r$.        ";
            }
       print "\nSeeded, chain length $longest. Hit enter for random ut
+terings of $outlength words.\n";
    }
while (<>)
    {
        print join(' ', $mc->spew(length => $outlength)),"\n";
    }
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