RegEx on-line tester / tutorial reference

[rjwmnews]

Useful Regular Expressions on-line form tester:
www.internetofficer.com/regular-expression.html

I tested it with my standard e-mail validation RegEx (follows) and it seems to handle it properly.

/^[[:alnum:]][a-z0-9_\.\-]*@[a-z0-9\.\-]+\.[a-z]{2,4}$/i

Excellent RegEx tutorial reference:
www.regular-expressions.info/reference.html

[edited by: jdMorgan at 8:28 pm (utc) on Jan. 1, 2007]
[edit reason] de-linked [/edit]