code: def parseEntityRef(self):
          
          ret = libxml2mod.xmlParseEntityRef(self._o)
          if ret is None:raise parserError('xmlParseEntityRef() failed')
          __tmp = xmlEntity(_obj=ret)
          return __tmp
docs: parse ENTITY references declarations  [68] EntityRef ::=
            '&' Name ';'  [ WFC: Entity Declared ] In a document
            without any DTD, a document with only an internal DTD
            subset which contains no parameter entity references, or a
            document with "standalone='yes'", the Name given in the
            entity reference must match that in an entity declaration,
            except that well-formed documents need not declare any of
            the following entities: amp, lt, gt, apos, quot.  The
            declaration of a parameter entity must precede any
            reference to it.  Similarly, the declaration of a general
            entity must precede any reference to it which appears in a
            default value in an attribute-list declaration. Note that
            if entities are declared in the external subset or in
            external parameter entities, a non-validating processor is
            not obligated to read and process their declarations; for
            such documents, the rule that an entity must be declared is
            a well-formedness constraint only if standalone='yes'.  [
            WFC: Parsed Entity ] An entity reference must not contain
             the name of an unparsed entity