docs: def AsRegEx(self):
      """Return the current glob as a simple regex.
  
      Note: No interpolation is performed.
  
      Returns:
        A RegularExpression() object.
      """
      parts = self.__class__.REGEX_SPLIT_PATTERN.split(self._value)
      result = u"".join(self._ReplaceRegExPart(p) for p in parts)
  
      return rdf_standard.RegularExpression(u"(?i)\\A%s\\Z" % result)