Re: [FWP] R/E Question

[David Henderson <davidh+fwp@venus.cyberdesic.com>]

On Sat, Jan 29, 2000 at 04:39:18PM -0500, Bill Jones wrote:
> ([Ee]-?mail:)?[a-zA-Z]+([._][a-zA-Z]+)*@[^ ]+

It would be a bit cleaner to use /i and replace [Ee] with just E, and
[a-zA-Z] with just [a-z].  However, this will not catch all valid
E-mail addresses; there are other valid characters.

You might want to use (?: ... ) rather than ( ... ) if you aren't going
to used the parenthesized sections.

A ">" could also end an E-mail address (e.g. <president@whitehouse.gov>),
as could \t, \n, a comma (e.g. billg@microsoft.com, steveb@microsoft.com),
and a few other characters.

> (ftp://|http://)[^ ]+

Again, ">" could end a URL, as in <URL:http://www.psiphi.org/>.

David Henderson
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