Is there a way to decode q-encoded strings in Ruby?

Question

I'm working with mails, and names and subjects sometimes come q-encoded, like this:

=?UTF-8?Q?J=2E_Pablo_Fern=C3=A1ndez?=

Is there a way to decode them in Ruby? It seems TMail should take care of it, but it's not doing it.

Answer 1

Ruby includes a method of decoding Quoted-Printable strings:

puts "Pablo_Fern=C3=A1ndez".unpack "M"
# => Pablo_Fernández

But this doesn't seem to work on your entire string (including the =?UTF-8?Q? part at the beginning. Maybe you can work it out from there, though.