From: Sam Roberts <sroberts@...>
Date: 2003-01-27T05:41:17+09:00
Subject: Re: common regular expressions

Quoteing dcarrera@math.umd.edu, on Mon, Jan 27, 2003 at 05:17:02AM +0900:
> Hi Michael,
> 
> > Has anyone compiled a collection of 'common' regular expression 
> > patterns.
> 
> Never heard of such a list.  The O'Reilly book "Mastering Regular 
> Expressions" probably contains a whole lot.

Including one for a valid rfc822 email address list, which takes about
a page, no spaces.

> > - valid email addresses
> 
> Short answer:  /^\w+\@[\w\.]+\w+$/
> 
> Take an email address:  "joe97_smith@some.domain.org"

How about we take:

  "hi y@"."ruby \",master!"   ( ... a comment!!)  @ u%me . u+me . u-me

its syntactically valid, too! Though admittedly unusual...

Cheers,
Sam