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Domain Name Reg Ex
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This message was discovered on ASPFriends.com 'aspngregexp' list.


Stewart Haddock
I need help with a Rex Ex that will check domain names.

Right now I have:     ^[a-zA-Z0-9\-\.]+\.(com|edu|net|gov|org)$

but this does not catch "-domain.com"

I tried:
^[a-zA-Z0-9]+[a-zA-Z0-9\-\.]?\.(com|edu|net|gov|org)$

but it does not seem to work properly.

Any ideas?

Thanks,

Stewart Haddock
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Stewart Haddock
Ai! I just realized the reg ex needs to also catch trailing hyphens.

Just to be complete. It needs to follow these rules.
Contain only alphanumeric characters (a-z and 0-9) and hyphens.
Begin and end with a letter or a number.
Contain no more than 67 characters including the domain type.

it needs to match
my.domain.com
my-domain.com
domain.com

and not match
.mydomain.com
-mydomain.com
mydomain-.com
mydomain..com

Thanks

Stewart

-----Original Message-----
From: Stewart Haddock
Sent: Tuesday, July 16, 2002 8:00 AM
To: aspngregexp
Subject: [aspngregexp] Domain Name Reg Ex

I need help with a Rex Ex that will check domain names.

Right now I have:     ^[a-zA-Z0-9\-\.]+\.(com|edu|net|gov|org)$

but this does not catch "-domain.com"

I tried:
^[a-zA-Z0-9]+[a-zA-Z0-9\-\.]?\.(com|edu|net|gov|org)$

but it does not seem to work properly.

Any ideas?

Thanks,

Stewart Haddock

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