regular expressions are very easy, although they look like a monster
i recommend this small application "reg-ex coach" :
http://weitz.de/files/regex-coach.exe that checks your regular expression and tells you what the pattern would be
and also check tutorials about regular expressions on google. they are just so easy to learn you wouldn't belive it. all you need to know is contained in 2-3 paragraphs at most.
good luck!
