func doCheckMask(_data,flags)
  if(flags='')
   //
  end
  println('If ', _data, ' = ', Key, ' Then')
  if(linked(onTrue))
    block.inclvl()
      event(onTrue)
    block.declvl()
  end
  if(linked(onFalse))
    println('Else')
    block.inclvl()
      event(onFalse, _data)//,flags)
    block.declvl()
  end
  println('End If')
end