On 01/08/2011 04:55 PM, WalkinRaven wrote:
PHP 5.3 PCRE

Regular Express to match domain names format according to RFC 1034 -
DOMAIN NAMES - CONCEPTS AND FACILITIES

/^
(
[a-z] |
[a-z] (?:[a-z]|[0-9]) |
[a-z] (?:[a-z]|[0-9]|\-){1,61} (?:[a-z]|[0-9]) ) # One label

(?:\.(?1))*+ # More labels
\.? # Root domain name
$/iDx

This rule matches only <label> and <label>. but not <label>.<label>...

I don't know what wrong with it.

Thank you.

Thank you all, and I think I've found the problem: If you don't use 'Recursive Reference' feature, all will work well.

Detail:
http://ndss.walkinraven.name/2011/01/bug-related-to-recursive-reference-in.html

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