code: def unquote(cls, string):
          
          if len(string) == 0:
              return ''
  
          if string[0] == '"':
              if len(string) == 1 or string[-1] != '"':
                  raise SyntaxError('Poorly formed string literal: ' + string)
              string = string[1:-1]
  
          if len(string) == 0:
              return ''
  
          def replace(match):
              value = match.group(0)
              if value == '""':
                  return '"'
              if len(value) < 2:
                  raise SyntaxError('Poorly formed string literal: ' + string)
              return value[1]
  
          result = re.sub(cls._escaped_character_re, replace, string)
          return result
docs: Removes quotes from a quoted string.
  
          Splunk search command quote rules are applied. The enclosing double-quotes, if present, are removed. Escaped
          double-quotes ('\"' or '""') are replaced by a single double-quote ('"').
  
          **NOTE**
  
          We are not using a json.JSONDecoder because Splunk quote rules are different than JSON quote rules. A
          json.JSONDecoder does not recognize a pair of double-quotes ('""') as an escaped quote ('"') and will
          decode single-quoted strings ("'") in addition to double-quoted ('"') strings.