Enforcing nickname formats

[lex0r]

Sorry if this is obvious, but I had a look and couldn't find anything. Perhaps I don't know the right things to search?
Anyway, is there a way to force nicknames to always obey a regular expression?
For instance, I want every user to always have a name that matches /^[a-z]+[A-Z][a-z]+$/, and to deny connections or changes that violate this.
If anyone knows, I'll be grateful.
Muchas gracias,
~Lex0r.

[Stealth]

The only way to do this would be through a custom module that checks nicknames when users connect and when users change their nicks.

Another less friendly option would be use create a bot or service that monitors nicks and kills users who do not keep the proper format.