Method: Mail::Encodings::TransferEncoding.lowest_cost

Defined in:
lib/mail/encodings/transfer_encoding.rb

.lowest_cost(str, encodings) ⇒ Object 



56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
 
# File 'lib/mail/encodings/transfer_encoding.rb', line 56

def self.lowest_cost(str, encodings)
  best = nil
  best_cost = nil

  encodings.each do |enc|
    # If the current choice cannot be transported safely, give priority
    # to other choices but allow it to be used as a fallback.
    this_cost = enc.cost(str) if enc.compatible_input?(str)

    if !best_cost || (this_cost && this_cost < best_cost)
      best_cost = this_cost
      best = enc
    elsif this_cost == best_cost
      best = enc if enc::PRIORITY < best::PRIORITY
    end
  end

  best
end