About
August 7, 2006
Author
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Hi, I’m Takayuki Miyoshi writing this blog from Tokyo, Japan. On this blog, I’m publishing WordPress tips and plugins I wrote.
If you have personal messages to me, feel free to send mail to this address. 
As my English skills are not enough, use plain English, please :)

February 5, 2007 at 11:16 pm
Hello. Can you help me? I want to allow my visitors to register to my WordPress 2.1 website with kanji usernames. Is it possible?
It seems that WordPress only accepts romanji usernames…
thank you!!!
davido
February 6, 2007 at 2:54 am
Davido,
I checked around the core code. As you wrote, it seems that WordPress does not accept Kanji and many other Unicode characters in user name.
However, it should be possible for a plugin to change the restriction by some filtering. validate_username in wp-includes/registration.php and sanitize_user in wp-includes/formatting.php are the possible candidates.
I am not sure if changing the default restriction will cause no problem in future (risky maybe), but if it is necessary for you, I can write a plugin in ten minutes. Please tell me what you think.
November 26, 2007 at 8:52 am
I use contact form 7 to add a contact form to my site. When the form is sent a confirmation message appears in a green rectangle beneath the form
“Your message was sent successfully”
My question: Which file do I edit to personalize this confirmation message?
Regards
Brian
November 26, 2007 at 7:30 pm
Brian,
I answered your question on wordpress.org’s support forum. Please check there.
Thanks for comment.