public static TextConsoleReader instance()
 {
     if (inst == null)
     {
         inst = new TextConsoleReader();
     }
     return(inst);
 }
 public static TextConsoleReader instance(System.Windows.Forms.TextBox txt)
 {
     if (inst == null)
     {
         inst = new TextConsoleReader();
         inst.init(txt);
     }
     return(inst);
 }