Regular expression for a phone number

Posted by Zerobu on Stack Overflow See other posts from Stack Overflow or by Zerobu
Published on 2010-03-21T03:32:24Z Indexed on 2010/03/21 3:41 UTC
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perl

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regex

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homework

Hello, I would like a regular expression in this format. It Must match one of the following formats:

* (###)###-####
* ###-###-####
* ###.###.####
* ##########

Strip all whitespace. Make sure it's a valid phone number, then (if necessary) translate it to the first format listed above.

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