Class: BEncode

Inherits:
Object
  • Object
show all
Defined in:
lib/nrepl-lazuli/bencode.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(stream) ⇒ BEncode

Returns a new instance of BEncode.



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# File 'lib/nrepl-lazuli/bencode.rb', line 17

def initialize(stream)
  @stream =
    if stream.kind_of?(IO) || stream.kind_of?(StringIO)
      stream
    elsif stream.respond_to? :string
      StringIO.new stream.string
    elsif stream.respond_to? :to_s
      StringIO.new stream.to_s
    end
  @encoding = @stream.external_encoding || Encoding::default_external
end

Class Method Details

.encode(data) ⇒ Object 



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# File 'lib/nrepl-lazuli/bencode.rb', line 2

def self.encode(data)
  case data
  when Integer
    "i#{data}e"
  when String
    "#{data.bytesize}:#{data}"
  when Array
    "l#{data.map { |e| encode(e) }.join}e"
  when Hash
    "d#{data.map { |k, v| encode(k) + encode(v) }.join}e"
  else
    raise ArgumentError, "Cannot BEncode type: #{data.class} on text #{data.inspect}"
  end
end

Instance Method Details

#eos? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/nrepl-lazuli/bencode.rb', line 38

def eos?
  @stream.eof?
end

#parse! ⇒ Object 



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# File 'lib/nrepl-lazuli/bencode.rb', line 29

def parse!
  case peek
    when ?i then parse_integer!
    when ?l then parse_list!
    when ?d then parse_dict!
    when ?0 .. ?9 then parse_string!
  end
end