Validating language specific characters in user form inputs can be a bit of a pain but we have a great solution for you. It's called HTML5 Form Validator Unicode Add-on and is the next addition to the powerful HTML5 Form Validator extension.
Supplied with 131 scripts, you can choose any writing system from around the world or a combination of systems to be validated in your forms. Also, you can allow your users to use Unicode properties such as marks, numbers, punctuation, symbols and separators.
The extension requires HTML5 Form Validator to work!