[whatwg] Changing punctuation value of input element in telephone state

[Mounir Lamouri]

Hi,

For input element in telephone state [1] specs say "User agents may
change the punctuation of values that the user enters." I do not really
get it. What is the idea ?

[1] http://dev.w3.org/html5/spec/forms.html#telephone-state

Thanks,
--
Mounir