Method: JSON::Pure::Parser#initialize

Defined in:
lib/vendor/json_pure/lib/json/pure/parser.rb

#initialize(source, opts = {}) ⇒ Parser

Creates a new JSON::Pure::Parser instance for the string source.

It will be configured by the opts hash. opts can have the following keys:

  • max_nesting: The maximum depth of nesting allowed in the parsed data structures. Disable depth checking with :max_nesting => false|nil|0, it defaults to 19.

  • allow_nan: If set to true, allow NaN, Infinity and -Infinity in defiance of RFC 4627 to be parsed by the Parser. This option defaults to false.

  • symbolize_names: If set to true, returns symbols for the names (keys) in a JSON object. Otherwise strings are returned, which is also the default.

  • create_additions: If set to false, the Parser doesn’t create additions even if a matchin class and create_id was found. This option defaults to true.

  • object_class: Defaults to Hash

  • array_class: Defaults to Array



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# File 'lib/vendor/json_pure/lib/json/pure/parser.rb', line 71

def initialize(source, opts = {})
    if defined?(::Encoding)
      if source.encoding == Encoding::ASCII_8BIT
        b = source[0, 4].bytes.to_a
        source = case
                 when b.size >= 4 && b[0] == 0 && b[1] == 0 && b[2] == 0
                   source.dup.force_encoding(Encoding::UTF_32BE).encode!(Encoding::UTF_8)
                 when b.size >= 4 && b[0] == 0 && b[2] == 0
                   source.dup.force_encoding(Encoding::UTF_16BE).encode!(Encoding::UTF_8)
                 when b.size >= 4 && b[1] == 0 && b[2] == 0 && b[3] == 0
                   source.dup.force_encoding(Encoding::UTF_32LE).encode!(Encoding::UTF_8)
                 when b.size >= 4 && b[1] == 0 && b[3] == 0
                   source.dup.force_encoding(Encoding::UTF_16LE).encode!(Encoding::UTF_8)
                 else
                   source.dup
                 end
      else
        source = source.encode(Encoding::UTF_8)
      end
      source.force_encoding(Encoding::ASCII_8BIT)
    else
      b = source
      source = case
               when b.size >= 4 && b[0] == 0 && b[1] == 0 && b[2] == 0
                 JSON.iconv('utf-8', 'utf-32be', b)
               when b.size >= 4 && b[0] == 0 && b[2] == 0
                 JSON.iconv('utf-8', 'utf-16be', b)
               when b.size >= 4 && b[1] == 0 && b[2] == 0 && b[3] == 0
                 JSON.iconv('utf-8', 'utf-32le', b)
               when b.size >= 4 && b[1] == 0 && b[3] == 0
                 JSON.iconv('utf-8', 'utf-16le', b)
               else
                 b
               end
    end
  super source
  if !opts.key?(:max_nesting) # defaults to 19
    @max_nesting = 19
  elsif opts[:max_nesting]
    @max_nesting = opts[:max_nesting]
  else
    @max_nesting = 0
  end
  @allow_nan = !!opts[:allow_nan]
  @symbolize_names = !!opts[:symbolize_names]
  ca = true
  ca = opts[:create_additions] if opts.key?(:create_additions)
  @create_id = ca ? JSON.create_id : nil
  @object_class = opts[:object_class] || Hash
  @array_class = opts[:array_class] || Array
end