in reply to Knuth-Morris-Pratt Vs. Perl

In Mastering Algorithms with Perl you can find a Perl implementation of both algorithms. You can read it online here (you can subscribe to "Free Safari Trial" here)

CountZero

A program should be light and ag ile, its subroutines connected like a string of pearls. The spirit and intent of the program should be retained throughout. There should be neither too little or too much, neither needless loops nor useless variables, neither lack of structure nor overwhelming rigidity." - The Tao of Programming, 4.1 - Geoffrey James

In Section Seekers of Perl Wisdom