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 t

Answer 1

Decoding on a line-per-line basis:

line.unpack("M")

Convert STDIN or file provided input of encoded strings into a decoded output:

if ARGV[0]
  lines = File.read(ARGV[0]).lines
else
  lines = STDIN.each_line.to_a
end

puts lines.map { |c| c.unpack("M") }.join