Class: WebMock::Util::JSON

Inherits:
Object
  • Object
show all
Defined in:
lib/webmock/util/json.rb

Defined Under Namespace

Classes: ParseError

Class Method Summary collapse

Class Method Details

.convert_json_to_yaml(json) ⇒ Object

Ensure that “:” and “,” are always followed by a space



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# File 'lib/webmock/util/json.rb', line 26

def self.convert_json_to_yaml(json) #:nodoc:
  scanner, quoting, marks, times = StringScanner.new(json), false, [], []
  while scanner.scan_until(/(\\['"]|['":,\\]|\\.)/)
    case char = scanner[1]
    when '"', "'"
      if !quoting
        quoting = char
      elsif quoting == char
        quoting = false
      end
    when ":",","
        marks << scanner.pos - 1 unless quoting
    when "\\"
        scanner.skip(/\\/)
    end
  end

  if marks.empty?
    json.gsub(/\\\//, '/')
  else
    left_pos  = [-1].push(*marks)
    right_pos = marks << json.bytesize
    output    = []

    left_pos.each_with_index do |left, i|
      if json.respond_to?(:byteslice)
        output << json.byteslice(left.succ..right_pos[i])
      else
        output << json[left.succ..right_pos[i]]
      end
    end

    output = output * " "

    times.each { |i| output[i-1] = ' ' }
    output.gsub!(/\\\//, '/')
    output
  end
end

.parse(json) ⇒ Object 



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# File 'lib/webmock/util/json.rb', line 13

def self.parse(json)
  yaml = unescape(convert_json_to_yaml(json))
  YAML.load(yaml)
rescue ArgumentError => e
  raise ParseError, "Invalid JSON string: #{yaml}, Error: #{e.inspect}"
end

.unescape(str) ⇒ Object 



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# File 'lib/webmock/util/json.rb', line 21

def self.unescape(str)
  str.gsub(/\\u([0-9a-f]{4})/) { [$1.hex].pack("U") }
end