class CFPropertyList::PlainParser

def escape_char
  case @doc.matched
  when '"'
    '"'
  when '\\'
    '\\'
  when 'a'
    "\a"
  when 'b'
    "\b"
  when 'f'
    "\f"
  when 'n'
    "\n"
  when 'v'
    "\v"
  when 'r'
    "\r"
  when 't'
    "\t"
  when 'U'
    @doc.scan(/.{4}/).hex.chr('utf-8')
  end
end