JScript and JavaScript use a Perl-like flavor for the regular expressions implementation, and of course this is also used by Answer Machine Plus.
(Why would you re-invent the wheel?)
I find myself using Regular-Expressions.info quite often, where the syntax and workings of regular expressions are explained in high detail. Have a look at the
reference and the
details of the JavaScript RegEx-flavour.
When you're already a bit familiar with such expressions, you might find this source interesting:
Regular Expressions cheat-sheet. It explains in full detail both the syntax and the methods for JavaScript RegEx's with examples. I find this great because it also explains the differences in the methods of the RegEx object, such as how RegEx.match() differs from RegEx.exec() - things that are often missed by other references.
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