Links related to tag validator

I'm trying to validate user input (in Python) and see if the right language is being used, Korean in this case. Lets take the Korean word for email address: 이메일 주소

I can check each character like so:

import unicodedata as ud
for chr in u'이메일 주소':
    if 'HANGUL' in ud.name(chr): print "Yep, that's a Korean character."

But that seems highly inefficient, especially for longer texts. Of course, I c...