And if you paste in code (highly recommended for best response), be sure to surround it with <code> . . . </code> tags so that your nice formatting is not lost.

brother dep.

--
Laziness, Impatience, Hubris, and Generosity.

Well, at least you remembered not to type the class number and professor's name at the top.

This really smells like homework to me :-(

The answers to these questions can be found in Mastering Regular Expressions mostly.

Actually this isn't homework for a class.

I know this is two years after the fact. Just the same, I thought someone should set the record straight – if for no other reason, then because jeffa has linked to the OP has an example of homework in his oft cited How (Not) To Ask A Question tutorial.

So I did a quick search. I just googled for the fourth question. Imagine my surprise when I found that Google returned exactly two links.

The first was a link to the archived OP at thepen, blakem's Perl Monks archive.

The second was http://home.earthlink.net/~greenblanket/cs551-gradedperl.htm.

You be the judge. ;-)

-sauoq
"My two cents aren't worth a dime.";