compuXP

Hi,

I have this regular expression:

^[[:alnum:]]+[\.]+[com|net|org|biz|co\.uk|us|info|jobs|travel|cc|cn|a t|be|de|hu|in|eu|jp|to|tv|ws|nu|name|mx]+$

What it does is checks to make sure a domain name has a valid syntax (e.g: domain.com, 4es.co.uk, this.net, etc) - but it doesn't allow hyphens. Some domains have hyphens.

How can this regexp be altered so that it allows hyphens in the first part (before the period of the domain), but only one at a time (no two hyphens right next to each other), and not at the beginning or end of the first part of the domain?

I'd REALLY appreciate any help, it's driving me mad.

Thanks,
-Matt

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