Regular Expression For Validating a username

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Can somebody please help me creating a regular expression to validate a username.

the user name should be between 6-13 characters. is should contain only alphanumeric or _ characters. the first two and the last two characters should be alphabet characters.

thanks.

Posted 1-May-12 3:09am

coco10

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wizardzz 1-May-12 11:21am

This is extremely simply, have you done any work, or tried anything so far?

Sergey Alexandrovich Kryukov 1-May-12 12:53pm

Yes, have you? Probably not, a 1.
--SA

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