invalid multibyte escape after upgrade to rails 3 and ruby 1.9.2 -- dtext = '[^\\x80]'

Question

I am upgrading my app from rails 2 to 3 and when i 'require' this file that has an email address validator i get an 'invalid multibyte escape' error with:

dtext = '[^\\x80]' pattern = /\A#{dtext}\z/

Any thoughts?

Answer 1

Try using:

pattern = /\A#{dtext}\z/, nil, 'n'

Check out details on encodings and regexp for more.

And I use and recommend this awesome article on encodings in Ruby.