Method: Reline::Windows.getc

Defined in:
lib/reline/windows.rb

.getc ⇒ Object 



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# File 'lib/reline/windows.rb', line 150

def self.getc
  num_of_events = 0.chr * 8
  while @@GetNumberOfConsoleInputEvents.(@@hConsoleInputHandle, num_of_events) != 0 and num_of_events.unpack('L').first > 0
    input_record = 0.chr * 18
    read_event = 0.chr * 4
    if @@ReadConsoleInput.(@@hConsoleInputHandle, input_record, 1, read_event) != 0
      event = input_record[0, 2].unpack('s*').first
      if event == WINDOW_BUFFER_SIZE_EVENT
        @@winch_handler.()
      end
    end
  end
  unless @@output_buf.empty?
    return @@output_buf.shift
  end
  input = getwch
  meta = (@@GetKeyState.call(VK_LMENU) & 0x80) != 0
  control = (@@GetKeyState.call(VK_CONTROL) & 0x80) != 0
  shift = (@@GetKeyState.call(VK_SHIFT) & 0x80) != 0
  force_enter = !input.instance_of?(Array) && (control or shift) && input == 0x0D
  if force_enter
    # It's treated as Meta+Enter on Windows
    @@output_buf.push("\e".ord)
    @@output_buf.push(input)
  else
    case input
    when 0x00
      meta = false
      @@output_buf.push(input)
      input = getwch
      @@output_buf.push(*input)
    when 0xE0
      @@output_buf.push(input)
      input = getwch
      @@output_buf.push(*input)
    when 0x03
      @@output_buf.push(input)
    else
      @@output_buf.push(input)
    end
  end
  if meta
    "\e".ord
  else
    @@output_buf.shift
  end
end