Reline::LineEditor

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 74
def initialize(config, encoding)
  @config = config
  @completion_append_character = ''
  @screen_size = [0, 0] # Should be initialized with actual winsize in LineEditor#reset
  reset_variables(encoding: encoding)
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 696
def add_dialog_proc(name, p, context = nil)
  dialog = Dialog.new(name, @config, DialogProcScope.new(self, @config, p, context))
  if index = @dialogs.find_index { |d| d.name == name }
    @dialogs[index] = dialog
  else
    @dialogs << dialog
  end
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 967
        def argumentable?(method_obj)
  method_obj and method_obj.parameters.any? { |param| param[0] == :key and param[1] == :arg }
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 1402
def byte_pointer=(val)
  @byte_pointer = val
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 1429
        def byteinsert(str, byte_pointer, other)
  new_str = str.byteslice(0, byte_pointer)
  new_str << other
  new_str << str.byteslice(byte_pointer, str.bytesize)
  new_str
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 1423
        def byteslice!(str, byte_pointer, size)
  new_str = str.byteslice(0, byte_pointer)
  new_str << str.byteslice(byte_pointer + size, str.bytesize)
  [new_str, str.byteslice(byte_pointer, size)]
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 306
        def calculate_nearest_cursor(cursor)
  line_to_calc = current_line
  new_cursor_max = calculate_width(line_to_calc)
  new_cursor = 0
  new_byte_pointer = 0
  height = 1
  max_width = screen_width
  if @config.editing_mode_is?(:vi_command)
    last_byte_size = Reline::Unicode.get_prev_mbchar_size(line_to_calc, line_to_calc.bytesize)
    if last_byte_size > 0
      last_mbchar = line_to_calc.byteslice(line_to_calc.bytesize - last_byte_size, last_byte_size)
      last_width = Reline::Unicode.get_mbchar_width(last_mbchar)
      end_of_line_cursor = new_cursor_max - last_width
    else
    end_of_line_cursor = new_cursor_max
    end
  else
  end_of_line_cursor = new_cursor_max
  end
  line_to_calc.grapheme_clusters.each do |gc|
    mbchar = gc.encode(Encoding::UTF_8)
    mbchar_width = Reline::Unicode.get_mbchar_width(mbchar)
    now = new_cursor + mbchar_width
    if now > end_of_line_cursor or now > cursor
      break
    end
    new_cursor += mbchar_width
    if new_cursor > max_width * height
      height += 1
    end
    new_byte_pointer += gc.bytesize
  end
  @byte_pointer = new_byte_pointer
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 396
def calculate_overlay_levels(overlay_levels)
  levels = []
  overlay_levels.each do |x, w, l|
    levels.fill(l, x, w)
  end
  levels
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 1436
        def calculate_width(str, allow_escape_code = false)
  Reline::Unicode.calculate_width(str, allow_escape_code)
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 1187
def call_completion_proc
  result = retrieve_completion_block(true)
  pre, target, post = result
  result = call_completion_proc_with_checking_args(pre, target, post)
  Reline.core.instance_variable_set(:@completion_quote_character, nil)
  result
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 1195
def call_completion_proc_with_checking_args(pre, target, post)
  if @completion_proc and target
    argnum = @completion_proc.parameters.inject(0) { |result, item|
      case item.first
      when :req, :opt
        result + 1
      when :rest
        break 3
      end
    }
    case argnum
    when 1
      result = @completion_proc.(target)
    when 2
      result = @completion_proc.(target, pre)
    when 3..Float::INFINITY
      result = @completion_proc.(target, pre, post)
    end
  end
  result
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 92
        def check_mode_string
  if @config.show_mode_in_prompt
    if @config.editing_mode_is?(:vi_command)
      @config.vi_cmd_mode_string
    elsif @config.editing_mode_is?(:vi_insert)
      @config.vi_ins_mode_string
    elsif @config.editing_mode_is?(:emacs)
      @config.emacs_mode_string
    else
      '?'
    end
  end
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 106
        def check_multiline_prompt(buffer, mode_string)
  if @vi_arg
    prompt = "(arg: #{@vi_arg}) "
  elsif @searching_prompt
    prompt = @searching_prompt
  else
    prompt = @prompt
  end
  if !@is_multiline
    mode_string = check_mode_string
    prompt = mode_string + prompt if mode_string
    [prompt] + [''] * (buffer.size - 1)
  elsif @prompt_proc
    prompt_list = @prompt_proc.(buffer).map { |pr| pr.gsub("\n", "\\n") }
    prompt_list.map!{ prompt } if @vi_arg or @searching_prompt
    prompt_list = [prompt] if prompt_list.empty?
    prompt_list = prompt_list.map{ |pr| mode_string + pr } if mode_string
    prompt = prompt_list[@line_index]
    prompt = prompt_list[0] if prompt.nil?
    prompt = prompt_list.last if prompt.nil?
    if buffer.size > prompt_list.size
      (buffer.size - prompt_list.size).times do
        prompt_list << prompt_list.last
      end
    end
    prompt_list
  else
    prompt = mode_string + prompt if mode_string
    [prompt] * buffer.size
  end
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 997
        def cleanup_waiting
  @waiting_proc = nil
  @vi_waiting_operator = nil
  @vi_waiting_operator_arg = nil
  @searching_prompt = nil
  @drop_terminate_spaces = false
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 444
def clear_dialogs
  @dialogs.each do |dialog|
    dialog.contents = nil
    dialog.trap_key = nil
  end
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 464
def clear_rendered_lines
  Reline::IOGate.move_cursor_up @rendered_screen.cursor_y
  Reline::IOGate.move_cursor_column 0

  num_lines = @rendered_screen.lines.size
  return unless num_lines && num_lines >= 1

  Reline::IOGate.move_cursor_down num_lines - 1
  (num_lines - 1).times do
    Reline::IOGate.erase_after_cursor
    Reline::IOGate.move_cursor_up 1
  end
  Reline::IOGate.erase_after_cursor
  @rendered_screen.lines = []
  @rendered_screen.cursor_y = 0
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 1456
        def complete(_key)
  return if @config.disable_completion

  process_insert(force: true)
  if @config.autocompletion
    @completion_state = CompletionState::NORMAL
    @completion_occurs = move_completed_list(:down)
  else
    @completion_journey_state = nil
    result = call_completion_proc
    if result.is_a?(Array)
      @completion_occurs = true
      perform_completion(result, false)
    end
  end
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 813
        def complete_internal_proc(list, is_menu)
  preposing, target, postposing = retrieve_completion_block
  list = list.select { |i|
    if i and not Encoding.compatible?(target.encoding, i.encoding)
      raise Encoding::CompatibilityError, "#{target.encoding.name} is not compatible with #{i.encoding.name}"
    end
    if @config.completion_ignore_case
      i&.downcase&.start_with?(target.downcase)
    else
      i&.start_with?(target)
    end
  }.uniq
  if is_menu
    menu(target, list)
    return nil
  end
  completed = list.inject { |memo, item|
    begin
      memo_mbchars = memo.unicode_normalize.grapheme_clusters
      item_mbchars = item.unicode_normalize.grapheme_clusters
    rescue Encoding::CompatibilityError
      memo_mbchars = memo.grapheme_clusters
      item_mbchars = item.grapheme_clusters
    end
    size = [memo_mbchars.size, item_mbchars.size].min
    result = +''
    size.times do |i|
      if @config.completion_ignore_case
        if memo_mbchars[i].casecmp?(item_mbchars[i])
          result << memo_mbchars[i]
        else
          break
        end
      else
        if memo_mbchars[i] == item_mbchars[i]
          result << memo_mbchars[i]
        else
          break
        end
      end
    end
    result
  }
  [target, preposing, completed, postposing]
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 1473
        def completion_journey_move(direction)
  return if @config.disable_completion

  process_insert(force: true)
  @completion_state = CompletionState::NORMAL
  @completion_occurs = move_completed_list(direction)
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 1489
        def completion_journey_up(_key)
  completion_journey_move(:up) if @config.autocompletion
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 1341
def confirm_multiline_termination
  temp_buffer = @buffer_of_lines.dup
  @confirm_multiline_termination_proc.(temp_buffer.join("\n") + "\n")
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 2103
        def copy_for_vi(text)
  if @config.editing_mode_is?(:vi_insert) or @config.editing_mode_is?(:vi_command)
    @vi_clipboard = text
  end
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 302
def current_byte_pointer_cursor
  calculate_width(current_line.byteslice(0, @byte_pointer))
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 1238
def current_line
  @buffer_of_lines[@line_index]
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 1368
def delete_text(start = nil, length = nil)
  if start.nil? and length.nil?
    if @buffer_of_lines.size == 1
      @buffer_of_lines[@line_index] = ''
      @byte_pointer = 0
    elsif @line_index == (@buffer_of_lines.size - 1) and @line_index > 0
      @buffer_of_lines.pop
      @line_index -= 1
      @byte_pointer = 0
    elsif @line_index < (@buffer_of_lines.size - 1)
      @buffer_of_lines.delete_at(@line_index)
      @byte_pointer = 0
    end
  elsif not start.nil? and not length.nil?
    if current_line
      before = current_line.byteslice(0, start)
      after = current_line.byteslice(start + length, current_line.bytesize)
      set_current_line(before + after)
    end
  elsif start.is_a?(Range)
    range = start
    first = range.first
    last = range.last
    last = current_line.bytesize - 1 if last > current_line.bytesize
    last += current_line.bytesize if last < 0
    first += current_line.bytesize if first < 0
    range = range.exclude_end? ? first...last : first..last
    line = current_line.bytes.reject.with_index{ |c, i| range.include?(i) }.map{ |c| c.chr(Encoding::ASCII_8BIT) }.join.force_encoding(@encoding)
    set_current_line(line)
  else
    set_current_line(current_line.byteslice(0, start))
  end
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 903
def dialog_proc_scope_completion_journey_data
  return nil unless @completion_journey_state
  line_index = @completion_journey_state.line_index
  pre_lines = @buffer_of_lines[0...line_index].map { |line| line + "\n" }
  post_lines = @buffer_of_lines[(line_index + 1)..-1].map { |line| line + "\n" }
  DialogProcScope::CompletionJourneyData.new(
    pre_lines.join + @completion_journey_state.pre,
    @completion_journey_state.post + post_lines.join,
    @completion_journey_state.list,
    @completion_journey_state.pointer
  )
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 707
        def dialog_range(dialog, dialog_y)
  x_range = dialog.column...dialog.column + dialog.width
  y_range = dialog_y + dialog.vertical_offset...dialog_y + dialog.vertical_offset + dialog.contents.size
  [x_range, y_range]
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 2353
        def ed_argument_digit(key)
  if @vi_arg.nil?
    if key.chr.to_i.zero?
      if key.anybits?(0b10000000)
        unescaped_key = key ^ 0b10000000
        unless unescaped_key.chr.to_i.zero?
          @vi_arg = unescaped_key.chr.to_i
        end
      end
    else
      @vi_arg = key.chr.to_i
    end
  else
    @vi_arg = @vi_arg * 10 + key.chr.to_i
  end
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 1982
        def ed_clear_screen(key)
  Reline::IOGate.clear_screen
  @screen_size = Reline::IOGate.get_screen_size
  @rendered_screen.lines = []
  @rendered_screen.base_y = 0
  @rendered_screen.cursor_y = 0
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 2299
        def ed_delete_next_char(key, arg: 1)
  byte_size = Reline::Unicode.get_next_mbchar_size(current_line, @byte_pointer)
  unless current_line.empty? || byte_size == 0
    line, mbchar = byteslice!(current_line, @byte_pointer, byte_size)
    copy_for_vi(mbchar)
    if @byte_pointer > 0 && current_line.bytesize == @byte_pointer + byte_size
      byte_size = Reline::Unicode.get_prev_mbchar_size(line, @byte_pointer)
      set_current_line(line, @byte_pointer - byte_size)
    else
      set_current_line(line, @byte_pointer)
    end
  end
  arg -= 1
  ed_delete_next_char(key, arg: arg) if arg > 0
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 2214
        def ed_delete_prev_char(key, arg: 1)
  deleted = +''
  arg.times do
    if @byte_pointer > 0
      byte_size = Reline::Unicode.get_prev_mbchar_size(current_line, @byte_pointer)
      @byte_pointer -= byte_size
      line, mbchar = byteslice!(current_line, @byte_pointer, byte_size)
      set_current_line(line)
      deleted.prepend(mbchar)
    end
  end
  copy_for_vi(deleted)
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 2017
        def ed_delete_prev_word(key)
  if @byte_pointer > 0
    byte_size, _ = Reline::Unicode.em_backward_word(current_line, @byte_pointer)
    line, word = byteslice!(current_line, @byte_pointer - byte_size, byte_size)
    set_current_line(line, @byte_pointer - byte_size)
    @kill_ring.append(word, true)
  end
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 1516
        def ed_insert(key)
  if key.instance_of?(String)
    begin
      key.encode(Encoding::UTF_8)
    rescue Encoding::UndefinedConversionError
      return
    end
    str = key
  else
    begin
      key.chr.encode(Encoding::UTF_8)
    rescue Encoding::UndefinedConversionError
      return
    end
    str = key.chr
  end
  if @in_pasting
    @continuous_insertion_buffer << str
    return
  elsif not @continuous_insertion_buffer.empty?
    process_insert
  end

  insert_text(str)
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 1895
        def ed_kill_line(key)
  if current_line.bytesize > @byte_pointer
    line, deleted = byteslice!(current_line, @byte_pointer, current_line.bytesize - @byte_pointer)
    set_current_line(line, line.bytesize)
    @kill_ring.append(deleted)
  elsif @byte_pointer == current_line.bytesize and @buffer_of_lines.size > @line_index + 1
    set_current_line(current_line + @buffer_of_lines.delete_at(@line_index + 1), current_line.bytesize)
  end
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 1590
        def ed_move_to_beg(key)
  @byte_pointer = 0
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 1596
        def ed_move_to_end(key)
  @byte_pointer = current_line.bytesize
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 1845
        def ed_newline(key)
  process_insert(force: true)
  if @is_multiline
    if @config.editing_mode_is?(:vi_command)
      if @line_index < (@buffer_of_lines.size - 1)
        ed_next_history(key) # means cursor down
      else
        # should check confirm_multiline_termination to finish?
        finish
      end
    else
      if @line_index == (@buffer_of_lines.size - 1)
        if confirm_multiline_termination
          finish
        else
          key_newline(key)
        end
      else
        # should check confirm_multiline_termination to finish?
        @line_index = @buffer_of_lines.size - 1
        @byte_pointer = current_line.bytesize
        finish
      end
    end
  else
    finish
  end
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 1560
        def ed_next_char(key, arg: 1)
  byte_size = Reline::Unicode.get_next_mbchar_size(current_line, @byte_pointer)
  if (@byte_pointer < current_line.bytesize)
    @byte_pointer += byte_size
  elsif @config.editing_mode_is?(:emacs) and @byte_pointer == current_line.bytesize and @line_index < @buffer_of_lines.size - 1
    @byte_pointer = 0
    @line_index += 1
  end
  arg -= 1
  ed_next_char(key, arg: arg) if arg > 0
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 1828
        def ed_next_history(key, arg: 1)
  if @line_index < (@buffer_of_lines.size - 1)
    cursor = current_byte_pointer_cursor
    @line_index += 1
    calculate_nearest_cursor(cursor)
    return
  end
  move_history(
    (@history_pointer || Reline::HISTORY.size) + 1,
    line: :start,
    cursor: @config.editing_mode_is?(:vi_command) ? :start : :end,
  )
  arg -= 1
  ed_next_history(key, arg: arg) if arg > 0
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 1573
        def ed_prev_char(key, arg: 1)
  if @byte_pointer > 0
    byte_size = Reline::Unicode.get_prev_mbchar_size(current_line, @byte_pointer)
    @byte_pointer -= byte_size
  elsif @config.editing_mode_is?(:emacs) and @byte_pointer == 0 and @line_index > 0
    @line_index -= 1
    @byte_pointer = current_line.bytesize
  end
  arg -= 1
  ed_prev_char(key, arg: arg) if arg > 0
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 1811
        def ed_prev_history(key, arg: 1)
  if @line_index > 0
    cursor = current_byte_pointer_cursor
    @line_index -= 1
    calculate_nearest_cursor(cursor)
    return
  end
  move_history(
    (@history_pointer || Reline::HISTORY.size) - 1,
    line: :end,
    cursor: @config.editing_mode_is?(:vi_command) ? :start : :end,
  )
  arg -= 1
  ed_prev_history(key, arg: arg) if arg > 0
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 1999
        def ed_prev_word(key)
  if @byte_pointer > 0
    byte_size, _ = Reline::Unicode.em_backward_word(current_line, @byte_pointer)
    @byte_pointer -= byte_size
  end
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 1544
        def ed_quoted_insert(str, arg: 1)
  @waiting_proc = proc { |key|
    arg.times do
      if key == "\C-j".ord or key == "\C-m".ord
        key_newline(key)
      elsif key == 0
        # Ignore NUL.
      else
        ed_insert(key)
      end
    end
    @waiting_proc = nil
  }
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 1775
        def ed_search_next_history(key, arg: 1)
  substr = current_line.byteslice(0, @byte_pointer)
  return if @history_pointer.nil?

  history_range = @history_pointer + 1...Reline::HISTORY.size
  h_pointer, line_index = search_history(substr, history_range)
  return if h_pointer.nil? and not substr.empty?

  move_history(h_pointer, line: line_index || :start, cursor: @byte_pointer)
  arg -= 1
  ed_search_next_history(key, arg: arg) if arg > 0
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 1761
        def ed_search_prev_history(key, arg: 1)
  substr = current_line.byteslice(0, @byte_pointer)
  return if @history_pointer == 0
  return if @history_pointer.nil? && substr.empty? && !current_line.empty?

  history_range = 0...(@history_pointer || Reline::HISTORY.size)
  h_pointer, line_index = search_history(substr, history_range.reverse_each)
  return unless h_pointer
  move_history(h_pointer, line: line_index || :start, cursor: @byte_pointer)
  arg -= 1
  ed_search_prev_history(key, arg: arg) if arg > 0
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 2027
        def ed_transpose_chars(key)
  if @byte_pointer > 0
    if @byte_pointer < current_line.bytesize
      byte_size = Reline::Unicode.get_next_mbchar_size(current_line, @byte_pointer)
      @byte_pointer += byte_size
    end
    back1_byte_size = Reline::Unicode.get_prev_mbchar_size(current_line, @byte_pointer)
    if (@byte_pointer - back1_byte_size) > 0
      back2_byte_size = Reline::Unicode.get_prev_mbchar_size(current_line, @byte_pointer - back1_byte_size)
      back2_pointer = @byte_pointer - back1_byte_size - back2_byte_size
      line, back2_mbchar = byteslice!(current_line, back2_pointer, back2_byte_size)
      set_current_line(byteinsert(line, @byte_pointer - back2_byte_size, back2_mbchar))
    end
  end
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 2044
        def ed_transpose_words(key)
  left_word_start, middle_start, right_word_start, after_start = Reline::Unicode.ed_transpose_words(current_line, @byte_pointer)
  before = current_line.byteslice(0, left_word_start)
  left_word = current_line.byteslice(left_word_start, middle_start - left_word_start)
  middle = current_line.byteslice(middle_start, right_word_start - middle_start)
  right_word = current_line.byteslice(right_word_start, after_start - right_word_start)
  after = current_line.byteslice(after_start, current_line.bytesize - after_start)
  return if left_word.empty? or right_word.empty?
  from_head_to_left_word = before + right_word + middle + left_word
  set_current_line(from_head_to_left_word + after, from_head_to_left_word.bytesize)
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 1495
def ed_unassigned(key) end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 805
def editing_mode
  @config.editing_mode
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 2057
        def em_capitol_case(key)
  if current_line.bytesize > @byte_pointer
    byte_size, _, new_str = Reline::Unicode.em_forward_word_with_capitalization(current_line, @byte_pointer)
    before = current_line.byteslice(0, @byte_pointer)
    after = current_line.byteslice((@byte_pointer + byte_size)..-1)
    set_current_line(before + new_str + after, @byte_pointer + new_str.bytesize)
  end
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 1939
        def em_delete(key)
  if current_line.empty? and @buffer_of_lines.size == 1 and key == "\C-d".ord
    @eof = true
    finish
  elsif @byte_pointer < current_line.bytesize
    splitted_last = current_line.byteslice(@byte_pointer, current_line.bytesize)
    mbchar = splitted_last.grapheme_clusters.first
    line, = byteslice!(current_line, @byte_pointer, mbchar.bytesize)
    set_current_line(line)
  elsif @byte_pointer == current_line.bytesize and @buffer_of_lines.size > @line_index + 1
    set_current_line(current_line + @buffer_of_lines.delete_at(@line_index + 1), current_line.bytesize)
  end
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 2007
        def em_delete_next_word(key)
  if current_line.bytesize > @byte_pointer
    byte_size, _ = Reline::Unicode.em_forward_word(current_line, @byte_pointer)
    line, word = byteslice!(current_line, @byte_pointer, byte_size)
    set_current_line(line)
    @kill_ring.append(word)
  end
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 1954
        def em_delete_or_list(key)
  if current_line.empty? or @byte_pointer < current_line.bytesize
    em_delete(key)
  elsif !@config.autocompletion # show completed list
    result = call_completion_proc
    if result.is_a?(Array)
      perform_completion(result, true)
    end
  end
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 1874
        def em_delete_prev_char(key, arg: 1)
  arg.times do
    if @byte_pointer == 0 and @line_index > 0
      @byte_pointer = @buffer_of_lines[@line_index - 1].bytesize
      @buffer_of_lines[@line_index - 1] += @buffer_of_lines.delete_at(@line_index)
      @line_index -= 1
    elsif @byte_pointer > 0
      byte_size = Reline::Unicode.get_prev_mbchar_size(current_line, @byte_pointer)
      line, = byteslice!(current_line, @byte_pointer - byte_size, byte_size)
      set_current_line(line, @byte_pointer - byte_size)
    end
  end
  process_auto_indent
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 2515
        def em_exchange_mark(key)
  return unless @mark_pointer
  new_pointer = [@byte_pointer, @line_index]
  @byte_pointer, @line_index = @mark_pointer
  @mark_pointer = new_pointer
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 1931
        def em_kill_line(key)
  if current_line.size > 0
    @kill_ring.append(current_line.dup, true)
    set_current_line('', 0)
  end
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 2093
        def em_kill_region(key)
  if @byte_pointer > 0
    byte_size, _ = Reline::Unicode.em_big_backward_word(current_line, @byte_pointer)
    line, deleted = byteslice!(current_line, @byte_pointer - byte_size, byte_size)
    set_current_line(line, @byte_pointer - byte_size)
    @kill_ring.append(deleted, true)
  end
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 2067
        def em_lower_case(key)
  if current_line.bytesize > @byte_pointer
    byte_size, = Reline::Unicode.em_forward_word(current_line, @byte_pointer)
    part = current_line.byteslice(@byte_pointer, byte_size).grapheme_clusters.map { |mbchar|
      mbchar =~ /[A-Z]/ ? mbchar.downcase : mbchar
    }.join
    rest = current_line.byteslice((@byte_pointer + byte_size)..-1)
    line = current_line.byteslice(0, @byte_pointer) + part
    set_current_line(line + rest, line.bytesize)
  end
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 1991
        def em_next_word(key)
  if current_line.bytesize > @byte_pointer
    byte_size, _ = Reline::Unicode.em_forward_word(current_line, @byte_pointer)
    @byte_pointer += byte_size
  end
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 2510
        def em_set_mark(key)
  @mark_pointer = [@byte_pointer, @line_index]
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 2080
        def em_upper_case(key)
  if current_line.bytesize > @byte_pointer
    byte_size, = Reline::Unicode.em_forward_word(current_line, @byte_pointer)
    part = current_line.byteslice(@byte_pointer, byte_size).grapheme_clusters.map { |mbchar|
      mbchar =~ /[a-z]/ ? mbchar.upcase : mbchar
    }.join
    rest = current_line.byteslice((@byte_pointer + byte_size)..-1)
    line = current_line.byteslice(0, @byte_pointer) + part
    set_current_line(line + rest, line.bytesize)
  end
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 1966
        def em_yank(key)
  yanked = @kill_ring.yank
  insert_text(yanked) if yanked
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 1972
        def em_yank_pop(key)
  yanked, prev_yank = @kill_ring.yank_pop
  if yanked
    line, = byteslice!(current_line, @byte_pointer - prev_yank.bytesize, prev_yank.bytesize)
    set_current_line(line, @byte_pointer - prev_yank.bytesize)
    insert_text(yanked)
  end
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 2523
        def emacs_editing_mode(key)
  @config.editing_mode = :emacs
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 218
def eof?
  @eof
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 214
def finalize
  Signal.trap('INT', @old_trap)
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 1418
def finish
  @finished = true
  @config.reset
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 1414
def finished?
  @finished
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 1601
        def generate_searcher(search_key)
  search_word = String.new(encoding: @encoding)
  multibyte_buf = String.new(encoding: 'ASCII-8BIT')
  hit_pointer = nil
  lambda do |key|
    search_again = false
    case key
    when "\C-h".ord, "\C-?".ord
      grapheme_clusters = search_word.grapheme_clusters
      if grapheme_clusters.size > 0
        grapheme_clusters.pop
        search_word = grapheme_clusters.join
      end
    when "\C-r".ord, "\C-s".ord
      search_again = true if search_key == key
      search_key = key
    else
      multibyte_buf << key
      if multibyte_buf.dup.force_encoding(@encoding).valid_encoding?
        search_word << multibyte_buf.dup.force_encoding(@encoding)
        multibyte_buf.clear
      end
    end
    hit = nil
    if not search_word.empty? and @line_backup_in_history&.include?(search_word)
      hit_pointer = Reline::HISTORY.size
      hit = @line_backup_in_history
    else
      if search_again
        if search_word.empty? and Reline.last_incremental_search
          search_word = Reline.last_incremental_search
        end
        if @history_pointer
          case search_key
          when "\C-r".ord
            history_pointer_base = 0
            history = Reline::HISTORY[0..(@history_pointer - 1)]
          when "\C-s".ord
            history_pointer_base = @history_pointer + 1
            history = Reline::HISTORY[(@history_pointer + 1)..-1]
          end
        else
          history_pointer_base = 0
          history = Reline::HISTORY
        end
      elsif @history_pointer
        case search_key
        when "\C-r".ord
          history_pointer_base = 0
          history = Reline::HISTORY[0..@history_pointer]
        when "\C-s".ord
          history_pointer_base = @history_pointer
          history = Reline::HISTORY[@history_pointer..-1]
        end
      else
        history_pointer_base = 0
        history = Reline::HISTORY
      end
      case search_key
      when "\C-r".ord
        hit_index = history.rindex { |item|
          item.include?(search_word)
        }
      when "\C-s".ord
        hit_index = history.index { |item|
          item.include?(search_word)
        }
      end
      if hit_index
        hit_pointer = history_pointer_base + hit_index
        hit = Reline::HISTORY[hit_pointer]
      end
    end
    case search_key
    when "\C-r".ord
      prompt_name = 'reverse-i-search'
    when "\C-s".ord
      prompt_name = 'i-search'
    end
    prompt_name = "failed #{prompt_name}" unless hit
    [search_word, prompt_name, hit_pointer]
  end
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 183
        def handle_interrupted
  return unless @interrupted

  @interrupted = false
  clear_dialogs
  scrolldown = render_differential
  Reline::IOGate.scroll_down scrolldown
  Reline::IOGate.move_cursor_column 0
  @rendered_screen.lines = []
  @rendered_screen.cursor_y = 0
  case @old_trap
  when 'DEFAULT', 'SYSTEM_DEFAULT'
    raise Interrupt
  when 'IGNORE'
    # Do nothing
  when 'EXIT'
    exit
  else
    @old_trap.call if @old_trap.respond_to?(:call)
  end
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 170
        def handle_resized
  return unless @resized

  @screen_size = Reline::IOGate.get_screen_size
  @resized = false
  scroll_into_view
  Reline::IOGate.move_cursor_up @rendered_screen.cursor_y
  @rendered_screen.base_y = Reline::IOGate.cursor_pos.y
  @rendered_screen.lines = []
  @rendered_screen.cursor_y = 0
  render_differential
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 165
def handle_signal
  handle_interrupted
  handle_resized
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 971
        def inclusive?(method_obj)
  # If a motion method with the keyword argument "inclusive" follows the
  # operator, it must contain the character at the cursor position.
  method_obj and method_obj.parameters.any? { |param| param[0] == :key and param[1] == :inclusive }
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 1685
        def incremental_search_history(key)
  unless @history_pointer
    @line_backup_in_history = whole_buffer
  end
  searcher = generate_searcher(key)
  @searching_prompt = "(reverse-i-search)`': "
  termination_keys = ["\C-j".ord]
  termination_keys.concat(@config.isearch_terminators&.chars&.map(&:ord)) if @config.isearch_terminators
  @waiting_proc = ->(k) {
    case k
    when *termination_keys
      if @history_pointer
        buffer = Reline::HISTORY[@history_pointer]
      else
        buffer = @line_backup_in_history
      end
      @buffer_of_lines = buffer.split("\n")
      @buffer_of_lines = [String.new(encoding: @encoding)] if @buffer_of_lines.empty?
      @line_index = @buffer_of_lines.size - 1
      @searching_prompt = nil
      @waiting_proc = nil
      @byte_pointer = 0
    when "\C-g".ord
      @buffer_of_lines = @line_backup_in_history.split("\n")
      @buffer_of_lines = [String.new(encoding: @encoding)] if @buffer_of_lines.empty?
      @line_index = @buffer_of_lines.size - 1
      move_history(nil, line: :end, cursor: :end, save_buffer: false)
      @searching_prompt = nil
      @waiting_proc = nil
      @byte_pointer = 0
    else
      chr = k.is_a?(String) ? k : k.chr(Encoding::ASCII_8BIT)
      if chr.match?(/[[:print:]]/) or k == "\C-h".ord or k == "\C-?".ord or k == "\C-r".ord or k == "\C-s".ord
        search_word, prompt_name, hit_pointer = searcher.call(k)
        Reline.last_incremental_search = search_word
        @searching_prompt = "(%s)`%s'" % [prompt_name, search_word]
        @searching_prompt += ': ' unless @is_multiline
        move_history(hit_pointer, line: :end, cursor: :end, save_buffer: false) if hit_pointer
      else
        if @history_pointer
          line = Reline::HISTORY[@history_pointer]
        else
          line = @line_backup_in_history
        end
        @line_backup_in_history = whole_buffer
        @buffer_of_lines = line.split("\n")
        @buffer_of_lines = [String.new(encoding: @encoding)] if @buffer_of_lines.empty?
        @line_index = @buffer_of_lines.size - 1
        @searching_prompt = nil
        @waiting_proc = nil
        @byte_pointer = 0
      end
    end
  }
end

          
        

          
            
# File tmp/rubies/ruby-3.4.0-preview1/lib/reline/line_editor.rb, line 1111
def input_key(key)
  save_old_buffer
  @config.reset_oneshot_key_bindings
  @dialogs.each do |dialog|
    if key.char.instance_of?(Symbol) and key.char == dialog.name
      return
    end
  end
  if key.char.nil?
    process_insert(force: true)
    if @first_char
      @eof = true
    end
    finish
    return
  end
  @first_char = false
  @completion_occurs = false

  if key.char.is_a?(Symbol)
    process_key(key.char, key.char)
  else
    normal_char(key)
  end
  unless @completion_occurs
    @completion_state = CompletionState::NORMAL
    @completion_journey_state = nil
  end

  push_past_lines unless @undoing
  @undoing = false

  if @in_pasting
    clear_dialogs
    return
  end

  modified = @old_buffer_of_lines != @buffer_of_lines
  if !@completion_occurs && modified && !@config.disable_completion && @config.autocompletion
    # Auto complete starts only when edited
    process_insert(force: true)
    @completion_journey_state = retrieve_completion_journey_state
  end
  modified
end