help with regex needed

Posted by user268375 on Stack Overflow See other posts from Stack Overflow or by user268375
Published on 2010-06-09T13:18:32Z Indexed on 2010/06/09 13:22 UTC
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regex

I need a regular expression with the following needs:

the string is alphanumeric and have exactly 6 characters in the first half followed by hyphen(optional) followed by optional 4 characters:(cannot have more than 4 characters in the second half)

so any of the following is valid

11111A

111111-1

111111-yy

yyyyy-989

yyyyyy-9090

i thought this expression /[a-zA-Z0-9]([-])?[a-zA-Z0-9]{5,10}$/; should work but i m unable to get it working correctly.

Any help will be appreciated,

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help with regex needed - Developer IT

help with regex needed

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