code: @Override
      public AstNode handleUnknownToken( DdlTokenStream tokens,
                                         String tokenValue ) throws ParsingException {
          if (tokenValue.equals("/")) {
              return nodeFactory().node("backslashTerminator", getRootNode(), TYPE_BACKSLASH_TERMINATOR);
          }
  
          return null;
      }
docs: {@inheritDoc}
  
  @see org.modeshape.sequencer.ddl.StandardDdlParser#handleUnknownToken(org.modeshape.sequencer.ddl.DdlTokenStream,
  java.lang.String)