Method: IdPack::IdPacker#decode

Defined in:
lib/id_pack/id_packer.rb

#decode(encoded_caches) ⇒ Object

“_F~C_P.V”

> [5, 6, 21, 23, 25]



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# File 'lib/id_pack/id_packer.rb', line 136

def decode(encoded_caches)
  curr_encoded_string_prefix = nil

  ids = []
  start_id = 0
  encoded_number = ''

  encoded_caches.each_char do |c|
    if [SPACES_PREFIX, BINARY_PREFIX, RANGE_PREFIX].include?(c)
      unless curr_encoded_string_prefix == nil
        ids_to_include, end_id = convert_encoded_number_to_ids(
          curr_encoded_string_prefix, encoded_number, start_id
        )
        ids.concat(ids_to_include)
        start_id = end_id + (c == SPACES_PREFIX ? 0 : 1)
      end
      curr_encoded_string_prefix = c
      encoded_number = ''
    else
      encoded_number = encoded_number + c
    end

  end

  unless curr_encoded_string_prefix == nil
    ids_to_include, end_id = convert_encoded_number_to_ids(
      curr_encoded_string_prefix, encoded_number, start_id
    )
    ids.concat(ids_to_include)
    start_id = end_id + 1
  end

  ids
rescue InvalidEncodedCharException
  # corrupted encoded_caches, assume nothing cached
  []
end