Tapestry Regexp Validator

[Fight Ice]

Tapestry 5.3.2:
I try to use Email validator in my email input field, but it doesn't work. Then 
I use the regexp validator in my properties file like this:
email-regexp=^[a-zA-Z0-9_\-]+@[a-zA-Z0-9_\-]+(\.[a-zA-Z0-9_\-]+)+$
It still doesn't work.
Finally I found even regexp like this "^[1-9]" doesn't work.
If I change the "^[1-9]" to "/^[1-9]/", it works, but still doesn't work with 
email-regexp.