anchor.diff:  #token Title("title")                           "title"
   #token FormId("formid")                         "formid"
   #token OneOf("oneof")                           "oneof"
  -#token EndoneOf("endoneof")                     "endoneof"
  +#token EndOneOf("endoneof")                     "endoneof"
   #token Prompt("prompt")                         "prompt"
   #token OrderedList("orderedlist")               "orderedlist"
   #token MaxContainers("maxcontainers")           "maxcontainers"
   #token EndList("endlist")                       "endlist"
   #token EndForm("endform")                       "endform"
  -#token EndOneOf("endoneof")                     "endoneof"
   #token Form("form")                             "form"
   #token Subtitle("subtitle")                     "subtitle"
   #token Help("help")                             "help"
  
positive.code: 
  //*****************************************************************************
  //
  // the syntax of from set definition
  //
  vfrFromSetDefinition :
    <<
       EFI_GUID    Guid;
       CIfrFormSet FSObj;
  
negative.code:   | N:Number                                        << $SubClass |= _STOU16(N->getText()); >>
    ;
  
  vfrStatementDisableIfFormSet :
    << CIfrDisableIf DIObj; >>
    D:DisableIf                                       << DIObj.SetLineNo(D->getLine()); >>
    vfrStatementExpression[0] ";"
  