anchor.diff:        Enables or disables stacktrace output if an exception occurs.
         The default is disabled.
     --help, -h
  -      Print this message."""
  +      Print this message.
  +      
  +To print the help of interactive mode, enter '#help' in interactive mode."""
   
   [<EntryPoint>]
   let main argv =
  
positive.code:       let client = createClient targets ApiLoader.databaseName
        printfn "Targets the following assemblies."
        client.TargetAssemblies |> List.iter (printfn "  %s")
        printfn "Input query or #q to quit."
        Interactive.loop client args |> ignore
      with
        ex -> showException args ex
  
negative.code:   let ShowXmlDocument = { Get = (fun x -> x.ShowXmlDocument); Set = (fun value x -> { x with ShowXmlDocument = value }) }
    let StackTrace = { Get = (fun x -> x.StackTrace); Set = (fun value x -> { x with StackTrace = value }) }
  
    let helpMessage = """
  FSharpApiSearch.Console interactive mode directive:
    #strict [enable|disable]
        Enables or disables to strictly deal with variables of different name in the query.
    #similarity [enable|disable]
        Enables or disables the similarity searching.
    #ignore-argstyle [enable|disable]
        Enables of disables to ignore the difference of the argument style.
        The argument style refers to curried argument, multi argument and tuple argument.
    #xmldoc [enable|disable]
        Enables or disables to show xml document of API.
    #stacktrace [enable|disable]
        Enables or disables stacktrace output if an exception occurs.
    #help
        Print this message.
    #q
        Quit interactive mode.
  
    If ommit the option value, print the current value of the option."""
  
    let rec loop (client: FSharpApiSearchClient) arg =
      printf "> "
      match Console.ReadLine().TrimEnd(';') with
  