in reply to words wich ends with "f"
I'd go with something like this (yeah, TIMTOWTDI):
$s = "four fifth two frog left leaf fred wolf";
@f = grep (/^[^f]\w*f\w*$/, split(' ', $s));
An Englishman in New York
An American Werewolf in London
An American in Paris
The Innocents Abroad
An Idiot Abroad
Robinson Crusoe on Mars
A Connecticut_Yankee in King Arthur's Court
There and Back Again
Travels into Several Remote Nations of the World
Results (85 votes). Check out past polls.