Class: Mail::Encodings::TransferEncoding

Inherits:
Object
  • Object
show all
Defined in:
lib/mail/encodings/transfer_encoding.rb

Direct Known Subclasses

Binary

Constant Summary collapse

NAME = 
''
PRIORITY = 
-1

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.can_encode?(enc) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mail/encodings/transfer_encoding.rb', line 18

def self.can_encode?(enc)
  can_transport? enc 
end

.can_transport?(enc) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mail/encodings/transfer_encoding.rb', line 9

def self.can_transport?(enc)
  enc = Encodings.get_name(enc)
  if Encodings.defined? enc
    Encodings.get_encoding(enc).new.is_a? self
  else
    false
  end
end

.cost(str) ⇒ Object 



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# File 'lib/mail/encodings/transfer_encoding.rb', line 22

def self.cost(str)
  raise "Unimplemented"
end

.get_best_compatible(source_encoding, str) ⇒ Object 



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# File 'lib/mail/encodings/transfer_encoding.rb', line 30

def self.get_best_compatible(source_encoding, str)
  if self.can_transport? source_encoding then
      source_encoding 
  else
      choices = []
      Encodings.get_all.each do |enc|
          choices << enc if self.can_transport? enc and enc.can_encode? source_encoding
      end
      best = nil 
      best_cost = 100
      choices.each do |enc|
          this_cost = enc.cost str
          if this_cost < best_cost then
              best_cost = this_cost
              best = enc
          elsif this_cost == best_cost then 
              best = enc if enc::PRIORITY < best::PRIORITY
          end
      end
      best
  end
end

.to_s ⇒ Object 



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# File 'lib/mail/encodings/transfer_encoding.rb', line 26

def self.to_s
  self::NAME
end

Instance Method Details

#to_s ⇒ Object 



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# File 'lib/mail/encodings/transfer_encoding.rb', line 53

def to_s
  self.class.to_s
end