類別 Reline::LineEditor

常數

CompletionJourneyData
DIALOG_DEFAULT_HEIGHT
MINIMUM_SCROLLBAR_HEIGHT
PROMPT_LIST_CACHE_TIMEOUT
VI_MOTIONS

屬性

auto_indent_proc[RW]
byte_pointer[R]
completion_append_character[RW]
completion_proc[RW]
confirm_multiline_termination_proc[RW]
dig_perfect_match_proc[RW]
line[R]

待辦事項:取消 TODO:在放棄 Ruby 2.5 後使用「private alias_method」慣用語。

output[W]
output_modifier_proc[RW]
pre_input_hook[RW]
prompt_proc[RW]

公共類別方法

new(config, encoding) 按一下以切換來源
# File lib/reline/line_editor.rb, line 57
def initialize(config, encoding)
  @config = config
  @completion_append_character = ''
  reset_variables(encoding: encoding)
end

公共實例方法

add_dialog_proc(name, p, context = nil) 按一下以切換來源
# File lib/reline/line_editor.rb, line 639
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
backward_char(key, arg: 1)
別名:ed_prev_char
backward_delete_char(key, arg: 1)
backward_kill_word(key)
backward_word(key)
別名:ed_prev_word
beginning_of_line(key)
別名:ed_move_to_beg
byte_pointer=(val) 按一下以切換來源
# File lib/reline/line_editor.rb, line 1839
def byte_pointer=(val)
  @byte_pointer = val
  str = @line.byteslice(0, @byte_pointer)
  @cursor = calculate_width(str)
  @cursor_max = calculate_width(@line)
end
call_completion_proc() 按一下以切換來源
# File lib/reline/line_editor.rb, line 1610
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
call_completion_proc_with_checking_args(pre, target, post) 按一下以切換來源
# File lib/reline/line_editor.rb, line 1618
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
capitalize_word(key)
別名:em_capitol_case
clear_screen(key)
別名:ed_clear_screen
confirm_multiline_termination() 按一下以切換來源
# File lib/reline/line_editor.rb, line 1757
def confirm_multiline_termination
  temp_buffer = @buffer_of_lines.dup
  if @previous_line_index and @line_index == (@buffer_of_lines.size - 1)
    temp_buffer[@previous_line_index] = @line
  else
    temp_buffer[@line_index] = @line
  end
  @confirm_multiline_termination_proc.(temp_buffer.join("\n") + "\n")
end
delete_char(key)
別名:em_delete
delete_char_or_list(key)
delete_text(start = nil, length = nil) 按一下以切換來源
# File lib/reline/line_editor.rb, line 1779
def delete_text(start = nil, length = nil)
  if start.nil? and length.nil?
    if @is_multiline
      if @buffer_of_lines.size == 1
        @line&.clear
        @byte_pointer = 0
        @cursor = 0
        @cursor_max = 0
      elsif @line_index == (@buffer_of_lines.size - 1) and @line_index > 0
        @buffer_of_lines.pop
        @line_index -= 1
        @line = @buffer_of_lines[@line_index]
        @byte_pointer = 0
        @cursor = 0
        @cursor_max = calculate_width(@line)
      elsif @line_index < (@buffer_of_lines.size - 1)
        @buffer_of_lines.delete_at(@line_index)
        @line = @buffer_of_lines[@line_index]
        @byte_pointer = 0
        @cursor = 0
        @cursor_max = calculate_width(@line)
      end
    else
      @line&.clear
      @byte_pointer = 0
      @cursor = 0
      @cursor_max = 0
    end
  elsif not start.nil? and not length.nil?
    if @line
      before = @line.byteslice(0, start)
      after = @line.byteslice(start + length, @line.bytesize)
      @line = before + after
      @byte_pointer = @line.bytesize if @byte_pointer > @line.bytesize
      str = @line.byteslice(0, @byte_pointer)
      @cursor = calculate_width(str)
      @cursor_max = calculate_width(@line)
    end
  elsif start.is_a?(Range)
    range = start
    first = range.first
    last = range.last
    last = @line.bytesize - 1 if last > @line.bytesize
    last += @line.bytesize if last < 0
    first += @line.bytesize if first < 0
    range = range.exclude_end? ? first...last : first..last
    @line = @line.bytes.reject.with_index{ |c, i| range.include?(i) }.map{ |c| c.chr(Encoding::ASCII_8BIT) }.join.force_encoding(@encoding)
    @byte_pointer = @line.bytesize if @byte_pointer > @line.bytesize
    str = @line.byteslice(0, @byte_pointer)
    @cursor = calculate_width(str)
    @cursor_max = calculate_width(@line)
  else
    @line = @line.byteslice(0, start)
    @byte_pointer = @line.bytesize if @byte_pointer > @line.bytesize
    str = @line.byteslice(0, @byte_pointer)
    @cursor = calculate_width(str)
    @cursor_max = calculate_width(@line)
  end
end
downcase_word(key)
別名:em_lower_case
ed_digit(key)
別名:ed_insert
editing_mode() 按一下以切換來源
# File lib/reline/line_editor.rb, line 1226
def editing_mode
  @config.editing_mode
end
end_of_line(key)
別名:ed_move_to_end
eof?() 按一下以切換原始碼
# File lib/reline/line_editor.rb, line 252
def eof?
  @eof
end
exchange_point_and_mark(key)
別名:em_exchange_mark
finalize() 按一下以切換原始碼
# File lib/reline/line_editor.rb, line 248
def finalize
  Signal.trap('INT', @old_trap)
end
finish() 按一下以切換原始碼
# File lib/reline/line_editor.rb, line 1865
def finish
  @finished = true
  @rerender_all = true
  @config.reset
end
finished?() 按一下以切換原始碼
# File lib/reline/line_editor.rb, line 1861
def finished?
  @finished
end
forward_char(key, arg: 1)
別名:ed_next_char
forward_search_history(key)
別名:vi_search_next
forward_word(key)
別名:em_next_word
history_search_backward(key, arg: 1)
history_search_forward(key, arg: 1)
input_key(key) 按一下以切換原始碼
# File lib/reline/line_editor.rb, line 1535
def input_key(key)
  @last_key = key
  @config.reset_oneshot_key_bindings
  @dialogs.each do |dialog|
    if key.char.instance_of?(Symbol) and key.char == dialog.name
      return
    end
  end
  @just_cursor_moving = nil
  if key.char.nil?
    if @first_char
      @line = nil
    end
    finish
    return
  end
  old_line = @line.dup
  @first_char = false
  completion_occurs = false
  if @config.editing_mode_is?(:emacs, :vi_insert) and key.char == "\C-i".ord
    unless @config.disable_completion
      result = call_completion_proc
      if result.is_a?(Array)
        completion_occurs = true
        process_insert
        if @config.autocompletion
          move_completed_list(result, :down)
        else
          complete(result)
        end
      end
    end
  elsif @config.editing_mode_is?(:emacs, :vi_insert) and key.char == :completion_journey_up
    if not @config.disable_completion and @config.autocompletion
      result = call_completion_proc
      if result.is_a?(Array)
        completion_occurs = true
        process_insert
        move_completed_list(result, :up)
      end
    end
  elsif not @config.disable_completion and @config.editing_mode_is?(:vi_insert) and ["\C-p".ord, "\C-n".ord].include?(key.char)
    unless @config.disable_completion
      result = call_completion_proc
      if result.is_a?(Array)
        completion_occurs = true
        process_insert
        move_completed_list(result, "\C-p".ord == key.char ? :up : :down)
      end
    end
  elsif Symbol === key.char and respond_to?(key.char, true)
    process_key(key.char, key.char)
  else
    normal_char(key)
  end
  unless completion_occurs
    @completion_state = CompletionState::NORMAL
    @completion_journey_data = nil
  end
  if not @in_pasting and @just_cursor_moving.nil?
    if @previous_line_index and @buffer_of_lines[@previous_line_index] == @line
      @just_cursor_moving = true
    elsif @previous_line_index.nil? and @buffer_of_lines[@line_index] == @line and old_line == @line
      @just_cursor_moving = true
    else
      @just_cursor_moving = false
    end
  else
    @just_cursor_moving = false
  end
  if @is_multiline and @auto_indent_proc and not simplified_rendering? and @line
    process_auto_indent
  end
end
insert_text(text) 按一下以切換原始碼
# File lib/reline/line_editor.rb, line 1767
def insert_text(text)
  width = calculate_width(text)
  if @cursor == @cursor_max
    @line += text
  else
    @line = byteinsert(@line, @byte_pointer, text)
  end
  @byte_pointer += text.bytesize
  @cursor += width
  @cursor_max += width
end
io_gate() 按一下以切換原始碼
# File lib/reline/line_editor.rb, line 63
def io_gate
  Reline::IOGate
end
just_move_cursor() 按一下以切換原始碼
# File lib/reline/line_editor.rb, line 932
def just_move_cursor
  prompt, prompt_width, prompt_list = check_multiline_prompt(@buffer_of_lines)
  move_cursor_up(@started_from)
  new_first_line_started_from =
    if @line_index.zero?
      0
    else
      calculate_height_by_lines(@buffer_of_lines[0..(@line_index - 1)], prompt_list || prompt)
    end
  first_line_diff = new_first_line_started_from - @first_line_started_from
  @cursor, @cursor_max, _, @byte_pointer = calculate_nearest_cursor(@buffer_of_lines[@line_index], @cursor, @started_from, @byte_pointer, false)
  new_started_from = calculate_height_by_width(prompt_width + @cursor) - 1
  calculate_scroll_partial_screen(@highest_in_all, new_first_line_started_from + new_started_from)
  @previous_line_index = nil
  @line = @buffer_of_lines[@line_index]
  if @rerender_all
    rerender_all_lines
    @rerender_all = false
    true
  else
    @first_line_started_from = new_first_line_started_from
    @started_from = new_started_from
    move_cursor_down(first_line_diff + @started_from)
    Reline::IOGate.move_cursor_column((prompt_width + @cursor) % @screen_size.last)
    false
  end
end
kill_line(key)
別名:ed_kill_line
kill_whole_line(key)
別名:em_kill_line
kill_word(key)
multiline_off() 按一下以切換原始碼
# File lib/reline/line_editor.rb, line 318
def multiline_off
  @is_multiline = false
end
multiline_on() 按一下以切換原始碼
# File lib/reline/line_editor.rb, line 314
def multiline_on
  @is_multiline = true
end
next_history(key, arg: 1)
別名:ed_next_history
previous_history(key, arg: 1)
別名:ed_prev_history
quoted_insert(str, arg: 1)
別名:ed_quoted_insert
rerender() 按一下以切換來源
# File lib/reline/line_editor.rb, line 426
def rerender
  return if @line.nil?
  if @menu_info
    scroll_down(@highest_in_all - @first_line_started_from)
    @rerender_all = true
  end
  if @menu_info
    show_menu
    @menu_info = nil
  end
  prompt, prompt_width, prompt_list = check_multiline_prompt(whole_lines)
  cursor_column = (prompt_width + @cursor) % @screen_size.last
  if @cleared
    clear_screen_buffer(prompt, prompt_list, prompt_width)
    @cleared = false
    return
  end
  if @is_multiline and finished? and @scroll_partial_screen
    # Re-output all code higher than the screen when finished.
    Reline::IOGate.move_cursor_up(@first_line_started_from + @started_from - @scroll_partial_screen)
    Reline::IOGate.move_cursor_column(0)
    @scroll_partial_screen = nil
    new_lines = whole_lines
    prompt, prompt_width, prompt_list = check_multiline_prompt(new_lines)
    modify_lines(new_lines).each_with_index do |line, index|
      @output.write "#{prompt_list ? prompt_list[index] : prompt}#{line}\r\n"
      Reline::IOGate.erase_after_cursor
    end
    @output.flush
    clear_dialog(cursor_column)
    return
  end
  new_highest_in_this = calculate_height_by_width(prompt_width + calculate_width(@line.nil? ? '' : @line))
  rendered = false
  if @add_newline_to_end_of_buffer
    clear_dialog_with_trap_key(cursor_column)
    rerender_added_newline(prompt, prompt_width, prompt_list)
    @add_newline_to_end_of_buffer = false
  else
    if @just_cursor_moving and not @rerender_all
      clear_dialog_with_trap_key(cursor_column)
      rendered = just_move_cursor
      @just_cursor_moving = false
      return
    elsif @previous_line_index or new_highest_in_this != @highest_in_this
      clear_dialog_with_trap_key(cursor_column)
      rerender_changed_current_line
      @previous_line_index = nil
      rendered = true
    elsif @rerender_all
      rerender_all_lines
      @rerender_all = false
      rendered = true
    else
    end
  end
  if @is_multiline
    if finished?
      # Always rerender on finish because output_modifier_proc may return a different output.
      new_lines = whole_lines
      line = modify_lines(new_lines)[@line_index]
      clear_dialog(cursor_column)
      prompt, prompt_width, prompt_list = check_multiline_prompt(new_lines)
      render_partial(prompt, prompt_width, line, @first_line_started_from)
      move_cursor_down(@highest_in_all - (@first_line_started_from + @highest_in_this - 1) - 1)
      scroll_down(1)
      Reline::IOGate.move_cursor_column(0)
      Reline::IOGate.erase_after_cursor
    else
      if not rendered and not @in_pasting
        line = modify_lines(whole_lines)[@line_index]
        prompt, prompt_width, prompt_list = check_multiline_prompt(whole_lines)
        render_partial(prompt, prompt_width, line, @first_line_started_from)
      end
      render_dialog(cursor_column)
    end
    @buffer_of_lines[@line_index] = @line
    @rest_height = 0 if @scroll_partial_screen
  else
    line = modify_lines(whole_lines)[@line_index]
    render_partial(prompt, prompt_width, line, 0)
    if finished?
      scroll_down(1)
      Reline::IOGate.move_cursor_column(0)
      Reline::IOGate.erase_after_cursor
    end
  end
end
rerender_all() 按一下以切換來源
# File lib/reline/line_editor.rb, line 420
def rerender_all
  @rerender_all = true
  process_insert(force: true)
  rerender
end
reset(prompt = '', encoding:) 按一下以切換來源
# File lib/reline/line_editor.rb, line 154
def reset(prompt = '', encoding:)
  @rest_height = (Reline::IOGate.get_screen_size.first - 1) - Reline::IOGate.cursor_pos.y
  @screen_size = Reline::IOGate.get_screen_size
  @screen_height = @screen_size.first
  reset_variables(prompt, encoding: encoding)
  Reline::IOGate.set_winch_handler do
    @resized = true
  end
  if ENV.key?('RELINE_ALT_SCROLLBAR')
    @full_block = '::'
    @upper_half_block = "''"
    @lower_half_block = '..'
    @block_elem_width = 2
  elsif Reline::IOGate.win?
    @full_block = '█'
    @upper_half_block = '▀'
    @lower_half_block = '▄'
    @block_elem_width = 1
  elsif @encoding == Encoding::UTF_8
    @full_block = '█'
    @upper_half_block = '▀'
    @lower_half_block = '▄'
    @block_elem_width = Reline::Unicode.calculate_width('█')
  else
    @full_block = '::'
    @upper_half_block = "''"
    @lower_half_block = '..'
    @block_elem_width = 2
  end
end
reset_line() 按一下以切換來源
# File lib/reline/line_editor.rb, line 296
def reset_line
  @cursor = 0
  @cursor_max = 0
  @byte_pointer = 0
  @buffer_of_lines = [String.new(encoding: @encoding)]
  @line_index = 0
  @previous_line_index = nil
  @line = @buffer_of_lines[0]
  @first_line_started_from = 0
  @move_up = 0
  @started_from = 0
  @highest_in_this = 1
  @highest_in_all = 1
  @line_backup_in_history = nil
  @multibyte_buffer = String.new(encoding: 'ASCII-8BIT')
  @check_new_auto_indent = false
end
reset_variables(prompt = '', encoding:) 按一下以切換來源
# File lib/reline/line_editor.rb, line 256
def reset_variables(prompt = '', encoding:)
  @prompt = prompt.gsub("\n", "\\n")
  @mark_pointer = nil
  @encoding = encoding
  @is_multiline = false
  @finished = false
  @cleared = false
  @rerender_all = false
  @history_pointer = nil
  @kill_ring ||= Reline::KillRing.new
  @vi_clipboard = ''
  @vi_arg = nil
  @waiting_proc = nil
  @waiting_operator_proc = nil
  @waiting_operator_vi_arg = nil
  @completion_journey_data = nil
  @completion_state = CompletionState::NORMAL
  @perfect_matched = nil
  @menu_info = nil
  @first_prompt = true
  @searching_prompt = nil
  @first_char = true
  @add_newline_to_end_of_buffer = false
  @just_cursor_moving = nil
  @cached_prompt_list = nil
  @prompt_cache_time = nil
  @eof = false
  @continuous_insertion_buffer = String.new(encoding: @encoding)
  @scroll_partial_screen = nil
  @prev_mode_string = nil
  @drop_terminate_spaces = false
  @in_pasting = false
  @auto_indent_proc = nil
  @dialogs = []
  @previous_rendered_dialog_y = 0
  @last_key = nil
  @resized = false
  reset_line
end
resize() 按一下以切換來源
# File lib/reline/line_editor.rb, line 185
def resize
  return unless @resized
  @resized = false
  @rest_height = (Reline::IOGate.get_screen_size.first - 1) - Reline::IOGate.cursor_pos.y
  old_screen_size = @screen_size
  @screen_size = Reline::IOGate.get_screen_size
  @screen_height = @screen_size.first
  if old_screen_size.last < @screen_size.last # columns increase
    @rerender_all = true
    rerender
  else
    back = 0
    new_buffer = whole_lines
    prompt, prompt_width, prompt_list = check_multiline_prompt(new_buffer)
    new_buffer.each_with_index do |line, index|
      prompt_width = calculate_width(prompt_list[index], true) if @prompt_proc
      width = prompt_width + calculate_width(line)
      height = calculate_height_by_width(width)
      back += height
    end
    @highest_in_all = back
    @highest_in_this = calculate_height_by_width(prompt_width + @cursor_max)
    @first_line_started_from =
      if @line_index.zero?
        0
      else
        calculate_height_by_lines(@buffer_of_lines[0..(@line_index - 1)], prompt_list || prompt)
      end
    if @prompt_proc
      prompt = prompt_list[@line_index]
      prompt_width = calculate_width(prompt, true)
    end
    calculate_nearest_cursor
    @started_from = calculate_height_by_width(prompt_width + @cursor) - 1
    Reline::IOGate.move_cursor_column((prompt_width + @cursor) % @screen_size.last)
    @highest_in_this = calculate_height_by_width(prompt_width + @cursor_max)
    @rerender_all = true
  end
end
retrieve_completion_block(set_completion_quote_character = false) 按一下以切換來源
# File lib/reline/line_editor.rb, line 1679
def retrieve_completion_block(set_completion_quote_character = false)
  if Reline.completer_word_break_characters.empty?
    word_break_regexp = nil
  else
    word_break_regexp = /\A[#{Regexp.escape(Reline.completer_word_break_characters)}]/
  end
  if Reline.completer_quote_characters.empty?
    quote_characters_regexp = nil
  else
    quote_characters_regexp = /\A[#{Regexp.escape(Reline.completer_quote_characters)}]/
  end
  before = @line.byteslice(0, @byte_pointer)
  rest = nil
  break_pointer = nil
  quote = nil
  closing_quote = nil
  escaped_quote = nil
  i = 0
  while i < @byte_pointer do
    slice = @line.byteslice(i, @byte_pointer - i)
    unless slice.valid_encoding?
      i += 1
      next
    end
    if quote and slice.start_with?(closing_quote)
      quote = nil
      i += 1
      rest = nil
    elsif quote and slice.start_with?(escaped_quote)
      # skip
      i += 2
    elsif quote_characters_regexp and slice =~ quote_characters_regexp # find new "
      rest = $'
      quote = $&
      closing_quote = /(?!\\)#{Regexp.escape(quote)}/
      escaped_quote = /\\#{Regexp.escape(quote)}/
      i += 1
      break_pointer = i - 1
    elsif word_break_regexp and not quote and slice =~ word_break_regexp
      rest = $'
      i += 1
      before = @line.byteslice(i, @byte_pointer - i)
      break_pointer = i
    else
      i += 1
    end
  end
  postposing = @line.byteslice(@byte_pointer, @line.bytesize - @byte_pointer)
  if rest
    preposing = @line.byteslice(0, break_pointer)
    target = rest
    if set_completion_quote_character and quote
      Reline.core.instance_variable_set(:@completion_quote_character, quote)
      if postposing !~ /(?!\\)#{Regexp.escape(quote)}/ # closing quote
        insert_text(quote)
      end
    end
  else
    preposing = ''
    if break_pointer
      preposing = @line.byteslice(0, break_pointer)
    else
      preposing = ''
    end
    target = before
  end
  if @is_multiline
    lines = whole_lines
    if @line_index > 0
      preposing = lines[0..(@line_index - 1)].join("\n") + "\n" + preposing
    end
    if (lines.size - 1) > @line_index
      postposing = postposing + "\n" + lines[(@line_index + 1)..-1].join("\n")
    end
  end
  [preposing.encode(@encoding), target.encode(@encoding), postposing.encode(@encoding)]
end
reverse_search_history(key)
別名:vi_search_prev
self_insert(key)
別名:ed_insert
set_mark(key)
別名:em_set_mark
set_pasting_state(in_pasting) 按一下以切換來源
# File lib/reline/line_editor.rb, line 67
def set_pasting_state(in_pasting)
  @in_pasting = in_pasting
end
set_signal_handlers() 按一下以切換來源
# File lib/reline/line_editor.rb, line 225
def set_signal_handlers
  @old_trap = Signal.trap('INT') {
    clear_dialog(0)
    if @scroll_partial_screen
      move_cursor_down(@screen_height - (@line_index - @scroll_partial_screen) - 1)
    else
      move_cursor_down(@highest_in_all - @line_index - 1)
    end
    Reline::IOGate.move_cursor_column(0)
    scroll_down(1)
    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
simplified_rendering?() 按一下以切換來源
# File lib/reline/line_editor.rb, line 71
def simplified_rendering?
  if finished?
    false
  elsif @just_cursor_moving and not @rerender_all
    true
  else
    not @rerender_all and not finished? and @in_pasting
  end
end
transpose_chars(key)
transpose_words(key)
unix_line_discard(key)
unix_word_rubout(key)
別名:em_kill_region
upcase_word(key)
別名:em_upper_case
vi_end_of_transmission(key)
別名:vi_list_or_eof
vi_eof_maybe(key)
別名:vi_list_or_eof
vi_movement_mode(key)
別名:vi_command_mode
whole_buffer() 按一下以切換來源
# File lib/reline/line_editor.rb, line 1853
def whole_buffer
  if @buffer_of_lines.size == 1 and @line.nil?
    nil
  else
    whole_lines.join("\n")
  end
end
whole_lines() 按一下以切換來源
# File lib/reline/line_editor.rb, line 1846
def whole_lines
  index = @previous_line_index || @line_index
  temp_lines = @buffer_of_lines.dup
  temp_lines[index] = @line
  temp_lines
end
wrap_method_call(method_symbol, method_obj, key, with_operator = false) 按一下以切換來源
# File lib/reline/line_editor.rb, line 1418
def wrap_method_call(method_symbol, method_obj, key, with_operator = false)
  if @config.editing_mode_is?(:emacs, :vi_insert) and @waiting_proc.nil? and @waiting_operator_proc.nil?
    not_insertion = method_symbol != :ed_insert
    process_insert(force: not_insertion)
  end
  if @vi_arg and argumentable?(method_obj)
    if with_operator and inclusive?(method_obj)
      method_obj.(key, arg: @vi_arg, inclusive: true)
    else
      method_obj.(key, arg: @vi_arg)
    end
  else
    if with_operator and inclusive?(method_obj)
      method_obj.(key, inclusive: true)
    else
      method_obj.(key)
    end
  end
end
yank(key)
別名:em_yank
yank_pop(key)
別名:em_yank_pop

私人實例方法

argumentable?(method_obj) 按一下以切換來源
# File lib/reline/line_editor.rb, line 1408
        def argumentable?(method_obj)
  method_obj and method_obj.parameters.any? { |param| param[0] == :key and param[1] == :arg }
end
byteinsert(str, byte_pointer, other) 按一下以切換來源
# File lib/reline/line_editor.rb, line 1877
        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
byteslice!(str, byte_pointer, size) 按一下以切換來源
# File lib/reline/line_editor.rb, line 1871
        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
calculate_height_by_lines(lines, prompt) 按一下以切換來源
# File lib/reline/line_editor.rb, line 322
        def calculate_height_by_lines(lines, prompt)
  result = 0
  prompt_list = prompt.is_a?(Array) ? prompt : nil
  lines.each_with_index { |line, i|
    prompt = prompt_list[i] if prompt_list and prompt_list[i]
    result += calculate_height_by_width(calculate_width(prompt, true) + calculate_width(line))
  }
  result
end
calculate_height_by_width(width) 按一下以切換來源
# File lib/reline/line_editor.rb, line 340
        def calculate_height_by_width(width)
  width.div(@screen_size.last) + 1
end
calculate_nearest_cursor(line_to_calc = @line, cursor = @cursor, started_from = @started_from, byte_pointer = @byte_pointer, update = true) 按一下以切換來源
# File lib/reline/line_editor.rb, line 378
        def calculate_nearest_cursor(line_to_calc = @line, cursor = @cursor, started_from = @started_from, byte_pointer = @byte_pointer, update = true)
  new_cursor_max = calculate_width(line_to_calc)
  new_cursor = 0
  new_byte_pointer = 0
  height = 1
  max_width = @screen_size.last
  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
  new_started_from = height - 1
  if update
    @cursor = new_cursor
    @cursor_max = new_cursor_max
    @started_from = new_started_from
    @byte_pointer = new_byte_pointer
  else
    [new_cursor, new_cursor_max, new_started_from, new_byte_pointer]
  end
end
calculate_scroll_partial_screen(highest_in_all, cursor_y) 按一下以切換來源
# File lib/reline/line_editor.rb, line 875
        def calculate_scroll_partial_screen(highest_in_all, cursor_y)
  if @screen_height < highest_in_all
    old_scroll_partial_screen = @scroll_partial_screen
    if cursor_y == 0
      @scroll_partial_screen = 0
    elsif cursor_y == (highest_in_all - 1)
      @scroll_partial_screen = highest_in_all - @screen_height
    else
      if @scroll_partial_screen
        if cursor_y <= @scroll_partial_screen
          @scroll_partial_screen = cursor_y
        elsif (@scroll_partial_screen + @screen_height - 1) < cursor_y
          @scroll_partial_screen = cursor_y - (@screen_height - 1)
        end
      else
        if cursor_y > (@screen_height - 1)
          @scroll_partial_screen = cursor_y - (@screen_height - 1)
        else
          @scroll_partial_screen = 0
        end
      end
    end
    if @scroll_partial_screen != old_scroll_partial_screen
      @rerender_all = true
    end
  else
    if @scroll_partial_screen
      @rerender_all = true
    end
    @scroll_partial_screen = nil
  end
end
calculate_width(str, allow_escape_code = false) 按一下以切換來源
# File lib/reline/line_editor.rb, line 1884
        def calculate_width(str, allow_escape_code = false)
  Reline::Unicode.calculate_width(str, allow_escape_code)
end
check_mode_string() 按一下以切換來源
# File lib/reline/line_editor.rb, line 81
        def check_mode_string
  mode_string = nil
  if @config.show_mode_in_prompt
    if @config.editing_mode_is?(:vi_command)
      mode_string = @config.vi_cmd_mode_string
    elsif @config.editing_mode_is?(:vi_insert)
      mode_string = @config.vi_ins_mode_string
    elsif @config.editing_mode_is?(:emacs)
      mode_string = @config.emacs_mode_string
    else
      mode_string = '?'
    end
  end
  if mode_string != @prev_mode_string
    @rerender_all = true
  end
  @prev_mode_string = mode_string
  mode_string
end
check_multiline_prompt(buffer, force_recalc: false) 按一下以切換來源
# File lib/reline/line_editor.rb, line 101
        def check_multiline_prompt(buffer, force_recalc: false)
  if @vi_arg
    prompt = "(arg: #{@vi_arg}) "
    @rerender_all = true
  elsif @searching_prompt
    prompt = @searching_prompt
    @rerender_all = true
  else
    prompt = @prompt
  end
  if simplified_rendering? && !force_recalc
    mode_string = check_mode_string
    prompt = mode_string + prompt if mode_string
    return [prompt, calculate_width(prompt, true), [prompt] * buffer.size]
  end
  if @prompt_proc
    use_cached_prompt_list = false
    if @cached_prompt_list
      if @just_cursor_moving
        use_cached_prompt_list = true
      elsif Time.now.to_f < (@prompt_cache_time + PROMPT_LIST_CACHE_TIMEOUT) and buffer.size == @cached_prompt_list.size
        use_cached_prompt_list = true
      end
    end
    use_cached_prompt_list = false if @rerender_all
    if use_cached_prompt_list
      prompt_list = @cached_prompt_list
    else
      prompt_list = @cached_prompt_list = @prompt_proc.(buffer).map { |pr| pr.gsub("\n", "\\n") }
      @prompt_cache_time = Time.now.to_f
    end
    prompt_list.map!{ prompt } if @vi_arg or @searching_prompt
    prompt_list = [prompt] if prompt_list.empty?
    mode_string = check_mode_string
    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_width = calculate_width(prompt, true)
    [prompt, prompt_width, prompt_list]
  else
    mode_string = check_mode_string
    prompt = mode_string + prompt if mode_string
    prompt_width = calculate_width(prompt, true)
    [prompt, prompt_width, nil]
  end
end
clear_dialog(cursor_column) 按一下以切換來源
# File lib/reline/line_editor.rb, line 859
        def clear_dialog(cursor_column)
  changes = @dialogs.map do |dialog|
    old_dialog = dialog.dup
    dialog.contents = nil
    [old_dialog, dialog]
  end
  render_dialog_changes(changes, cursor_column)
end
clear_dialog_with_trap_key(cursor_column) 按一下以切換來源
# File lib/reline/line_editor.rb, line 868
        def clear_dialog_with_trap_key(cursor_column)
  clear_dialog(cursor_column)
  @dialogs.each do |dialog|
    dialog.trap_key = nil
  end
end
clear_screen_buffer(prompt, prompt_list, prompt_width) 按一下以切換來源
# File lib/reline/line_editor.rb, line 1205
        def clear_screen_buffer(prompt, prompt_list, prompt_width)
  Reline::IOGate.clear_screen
  back = 0
  modify_lines(whole_lines).each_with_index do |line, index|
    if @prompt_proc
      pr = prompt_list[index]
      height = render_partial(pr, calculate_width(pr), line, back, with_control: false)
    else
      height = render_partial(prompt, prompt_width, line, back, with_control: false)
    end
    if index < (@buffer_of_lines.size - 1)
      move_cursor_down(1)
      back += height
    end
  end
  move_cursor_up(back)
  move_cursor_down(@first_line_started_from + @started_from)
  @rest_height = (Reline::IOGate.get_screen_size.first - 1) - Reline::IOGate.cursor_pos.y
  Reline::IOGate.move_cursor_column((prompt_width + @cursor) % @screen_size.last)
end
complete(list, just_show_list = false) 按一下以切換來源
# File lib/reline/line_editor.rb, line 1280
        def complete(list, just_show_list = false)
  case @completion_state
  when CompletionState::NORMAL, CompletionState::JOURNEY
    @completion_state = CompletionState::COMPLETION
  when CompletionState::PERFECT_MATCH
    @dig_perfect_match_proc&.(@perfect_matched)
  end
  if just_show_list
    is_menu = true
  elsif @completion_state == CompletionState::MENU
    is_menu = true
  elsif @completion_state == CompletionState::MENU_WITH_PERFECT_MATCH
    is_menu = true
  else
    is_menu = false
  end
  result = complete_internal_proc(list, is_menu)
  if @completion_state == CompletionState::MENU_WITH_PERFECT_MATCH
    @completion_state = CompletionState::PERFECT_MATCH
  end
  return if result.nil?
  target, preposing, completed, postposing = result
  return if completed.nil?
  if target <= completed and (@completion_state == CompletionState::COMPLETION)
    if list.include?(completed)
      if list.one?
        @completion_state = CompletionState::PERFECT_MATCH
      else
        @completion_state = CompletionState::MENU_WITH_PERFECT_MATCH
      end
      @perfect_matched = completed
    else
      @completion_state = CompletionState::MENU
    end
    if not just_show_list and target < completed
      @line = (preposing + completed + completion_append_character.to_s + postposing).split("\n")[@line_index] || String.new(encoding: @encoding)
      line_to_pointer = (preposing + completed + completion_append_character.to_s).split("\n").last || String.new(encoding: @encoding)
      @cursor_max = calculate_width(@line)
      @cursor = calculate_width(line_to_pointer)
      @byte_pointer = line_to_pointer.bytesize
    end
  end
end
complete_internal_proc(list, is_menu) 按一下以切換來源
# File lib/reline/line_editor.rb, line 1234
        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
copy_for_vi(text) 按一下以切換來源
# File lib/reline/line_editor.rb, line 2801
        def copy_for_vi(text)
  if @config.editing_mode_is?(:vi_insert) or @config.editing_mode_is?(:vi_command)
    @vi_clipboard = text
  end
end
dialog_range(dialog, dialog_y) 按一下以切換來源
# File lib/reline/line_editor.rb, line 671
        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
ed_argument_digit(key) 按一下以切換來源
# File lib/reline/line_editor.rb, line 3100
        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
ed_clear_screen(key) 按一下以切換來源
# File lib/reline/line_editor.rb, line 2665
        def ed_clear_screen(key)
  @cleared = true
end
別名:clear_screen
ed_delete_next_char(key, arg: 1) 按一下以切換來源
# File lib/reline/line_editor.rb, line 3012
        def ed_delete_next_char(key, arg: 1)
  byte_size = Reline::Unicode.get_next_mbchar_size(@line, @byte_pointer)
  unless @line.empty? || byte_size == 0
    @line, mbchar = byteslice!(@line, @byte_pointer, byte_size)
    copy_for_vi(mbchar)
    width = Reline::Unicode.get_mbchar_width(mbchar)
    @cursor_max -= width
    if @cursor > 0 and @cursor >= @cursor_max
      byte_size = Reline::Unicode.get_prev_mbchar_size(@line, @byte_pointer)
      mbchar = @line.byteslice(@byte_pointer - byte_size, byte_size)
      width = Reline::Unicode.get_mbchar_width(mbchar)
      @byte_pointer -= byte_size
      @cursor -= width
    end
  end
  arg -= 1
  ed_delete_next_char(key, arg: arg) if arg > 0
end
ed_delete_prev_char(key, arg: 1) 按一下以切換來源
# File lib/reline/line_editor.rb, line 2930
        def ed_delete_prev_char(key, arg: 1)
  deleted = ''
  arg.times do
    if @cursor > 0
      byte_size = Reline::Unicode.get_prev_mbchar_size(@line, @byte_pointer)
      @byte_pointer -= byte_size
      @line, mbchar = byteslice!(@line, @byte_pointer, byte_size)
      deleted.prepend(mbchar)
      width = Reline::Unicode.get_mbchar_width(mbchar)
      @cursor -= width
      @cursor_max -= width
    end
  end
  copy_for_vi(deleted)
end
ed_delete_prev_word(key) 按一下以切換來源
# File lib/reline/line_editor.rb, line 2698
        def ed_delete_prev_word(key)
  if @byte_pointer > 0
    byte_size, width = Reline::Unicode.em_backward_word(@line, @byte_pointer)
    @line, word = byteslice!(@line, @byte_pointer - byte_size, byte_size)
    @kill_ring.append(word, true)
    @byte_pointer -= byte_size
    @cursor -= width
    @cursor_max -= width
  end
end
ed_insert(key) 按一下以切換來源
Editline

ed-insert (vi 輸入:幾乎所有;emacs:可列印字元) 在插入模式中,在游標位置的左側插入輸入字元。在取代模式中,覆寫游標處的字元,並將游標向右移動一個字元位置。接受一個引數來重複此動作。如果輸入字元為 NUL 字元 (Ctrl-@),則會發生錯誤。無法擴充編輯緩衝區也會導致錯誤。

Editline

ed-digit (emacs:0 到 9) 如果在引數輸入模式中,將輸入數字附加到正在讀取的引數。否則,呼叫 ed-insert。如果輸入字元不是數字,或現有引數已大於一百萬,則會發生錯誤。

GNU Readline

self-insert (a, b, A, 1, !, …) 插入您自己。

# File lib/reline/line_editor.rb, line 1941
        def ed_insert(key)
  str = nil
  width = nil
  bytesize = nil
  if key.instance_of?(String)
    begin
      key.encode(Encoding::UTF_8)
    rescue Encoding::UndefinedConversionError
      return
    end
    str = key
    bytesize = key.bytesize
  else
    begin
      key.chr.encode(Encoding::UTF_8)
    rescue Encoding::UndefinedConversionError
      return
    end
    str = key.chr
    bytesize = 1
  end
  if @in_pasting
    @continuous_insertion_buffer << str
    return
  elsif not @continuous_insertion_buffer.empty?
    process_insert
  end
  width = Reline::Unicode.get_mbchar_width(str)
  if @cursor == @cursor_max
    @line += str
  else
    @line = byteinsert(@line, @byte_pointer, str)
  end
  last_byte_size = Reline::Unicode.get_prev_mbchar_size(@line, @byte_pointer)
  @byte_pointer += bytesize
  last_mbchar = @line.byteslice((@byte_pointer - bytesize - last_byte_size), last_byte_size)
  combined_char = last_mbchar + str
  if last_byte_size != 0 and combined_char.grapheme_clusters.size == 1
    # combined char
    last_mbchar_width = Reline::Unicode.get_mbchar_width(last_mbchar)
    combined_char_width = Reline::Unicode.get_mbchar_width(combined_char)
    if combined_char_width > last_mbchar_width
      width = combined_char_width - last_mbchar_width
    else
      width = 0
    end
  end
  @cursor += width
  @cursor_max += width
end
別名:ed_digit, self_insert
ed_kill_line(key) 按一下以切換來源
Editline

ed-kill-line (vi 指令:D, Ctrl-K;emacs:Ctrl-K, Ctrl-U) + 從游標刪除到該行的結尾。

GNU Readline

kill-line (C-k) 從點刪除到該行的結尾。使用負數數字引數,從游標向後刪除到目前行的開頭。

# File lib/reline/line_editor.rb, line 2548
        def ed_kill_line(key)
  if @line.bytesize > @byte_pointer
    @line, deleted = byteslice!(@line, @byte_pointer, @line.bytesize - @byte_pointer)
    @byte_pointer = @line.bytesize
    @cursor = @cursor_max = calculate_width(@line)
    @kill_ring.append(deleted)
  elsif @is_multiline and @byte_pointer == @line.bytesize and @buffer_of_lines.size > @line_index + 1
    @cursor = calculate_width(@line)
    @byte_pointer = @line.bytesize
    @line += @buffer_of_lines.delete_at(@line_index + 1)
    @cursor_max = calculate_width(@line)
    @buffer_of_lines[@line_index] = @line
    @rerender_all = true
    @rest_height += 1
  end
end
別名:kill_line
ed_move_to_beg(key) 按一下以切換來源
# File lib/reline/line_editor.rb, line 2054
        def ed_move_to_beg(key)
  @byte_pointer = @cursor = 0
end
別名為:beginning_of_line
ed_move_to_end(key) 按一下以切換來源
# File lib/reline/line_editor.rb, line 2059
        def ed_move_to_end(key)
  @byte_pointer = 0
  @cursor = 0
  byte_size = 0
  while @byte_pointer < @line.bytesize
    byte_size = Reline::Unicode.get_next_mbchar_size(@line, @byte_pointer)
    if byte_size > 0
      mbchar = @line.byteslice(@byte_pointer, byte_size)
      @cursor += Reline::Unicode.get_mbchar_width(mbchar)
    end
    @byte_pointer += byte_size
  end
end
別名為:end_of_line
ed_newline(key) 按一下以切換來源
# File lib/reline/line_editor.rb, line 2487
        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?
        @previous_line_index = @line_index
        @line_index = @buffer_of_lines.size - 1
        finish
      end
    end
  else
    if @history_pointer
      Reline::HISTORY[@history_pointer] = @line
      @history_pointer = nil
    end
    finish
  end
end
ed_next_char(key, arg: 1) 按一下以切換來源
# File lib/reline/line_editor.rb, line 2010
        def ed_next_char(key, arg: 1)
  byte_size = Reline::Unicode.get_next_mbchar_size(@line, @byte_pointer)
  if (@byte_pointer < @line.bytesize)
    mbchar = @line.byteslice(@byte_pointer, byte_size)
    width = Reline::Unicode.get_mbchar_width(mbchar)
    @cursor += width if width
    @byte_pointer += byte_size
  elsif @is_multiline and @config.editing_mode_is?(:emacs) and @byte_pointer == @line.bytesize and @line_index < @buffer_of_lines.size - 1
    next_line = @buffer_of_lines[@line_index + 1]
    @cursor = 0
    @byte_pointer = 0
    @cursor_max = calculate_width(next_line)
    @previous_line_index = @line_index
    @line_index += 1
  end
  arg -= 1
  ed_next_char(key, arg: arg) if arg > 0
end
別名為:forward_char
ed_next_history(key, arg: 1) 按一下以切換來源
# File lib/reline/line_editor.rb, line 2439
        def ed_next_history(key, arg: 1)
  if @is_multiline and @line_index < (@buffer_of_lines.size - 1)
    @previous_line_index = @line_index
    @line_index += 1
    return
  end
  if @history_pointer.nil?
    return
  elsif @history_pointer == (Reline::HISTORY.size - 1)
    if @is_multiline
      @history_pointer = nil
      @buffer_of_lines = @line_backup_in_history.split("\n")
      @buffer_of_lines = [String.new(encoding: @encoding)] if @buffer_of_lines.empty?
      @line_index = 0
      @line = @buffer_of_lines.first
      @rerender_all = true
    else
      @history_pointer = nil
      @line = @line_backup_in_history
    end
  else
    if @is_multiline
      Reline::HISTORY[@history_pointer] = whole_buffer
      @history_pointer += 1
      @buffer_of_lines = Reline::HISTORY[@history_pointer].split("\n")
      @buffer_of_lines = [String.new(encoding: @encoding)] if @buffer_of_lines.empty?
      @line_index = 0
      @line = @buffer_of_lines.first
      @rerender_all = true
    else
      Reline::HISTORY[@history_pointer] = @line
      @history_pointer += 1
      @line = Reline::HISTORY[@history_pointer]
    end
  end
  @line = '' unless @line
  if @config.editing_mode_is?(:emacs, :vi_insert)
    @cursor_max = @cursor = calculate_width(@line)
    @byte_pointer = @line.bytesize
  elsif @config.editing_mode_is?(:vi_command)
    @byte_pointer = @cursor = 0
    @cursor_max = calculate_width(@line)
  end
  arg -= 1
  ed_next_history(key, arg: arg) if arg > 0
end
別名為:next_history
ed_prev_char(key, arg: 1) 按一下以切換來源
# File lib/reline/line_editor.rb, line 2030
        def ed_prev_char(key, arg: 1)
  if @cursor > 0
    byte_size = Reline::Unicode.get_prev_mbchar_size(@line, @byte_pointer)
    @byte_pointer -= byte_size
    mbchar = @line.byteslice(@byte_pointer, byte_size)
    width = Reline::Unicode.get_mbchar_width(mbchar)
    @cursor -= width
  elsif @is_multiline and @config.editing_mode_is?(:emacs) and @byte_pointer == 0 and @line_index > 0
    prev_line = @buffer_of_lines[@line_index - 1]
    @cursor = calculate_width(prev_line)
    @byte_pointer = prev_line.bytesize
    @cursor_max = calculate_width(prev_line)
    @previous_line_index = @line_index
    @line_index -= 1
  end
  arg -= 1
  ed_prev_char(key, arg: arg) if arg > 0
end
別名為:backward_char
ed_prev_history(key, arg: 1) 按一下以切換來源
# File lib/reline/line_editor.rb, line 2388
        def ed_prev_history(key, arg: 1)
  if @is_multiline and @line_index > 0
    @previous_line_index = @line_index
    @line_index -= 1
    return
  end
  if Reline::HISTORY.empty?
    return
  end
  if @history_pointer.nil?
    @history_pointer = Reline::HISTORY.size - 1
    if @is_multiline
      @line_backup_in_history = whole_buffer
      @buffer_of_lines = Reline::HISTORY[@history_pointer].split("\n")
      @buffer_of_lines = [String.new(encoding: @encoding)] if @buffer_of_lines.empty?
      @line_index = @buffer_of_lines.size - 1
      @line = @buffer_of_lines.last
      @rerender_all = true
    else
      @line_backup_in_history = @line
      @line = Reline::HISTORY[@history_pointer]
    end
  elsif @history_pointer.zero?
    return
  else
    if @is_multiline
      Reline::HISTORY[@history_pointer] = whole_buffer
      @history_pointer -= 1
      @buffer_of_lines = Reline::HISTORY[@history_pointer].split("\n")
      @buffer_of_lines = [String.new(encoding: @encoding)] if @buffer_of_lines.empty?
      @line_index = @buffer_of_lines.size - 1
      @line = @buffer_of_lines.last
      @rerender_all = true
    else
      Reline::HISTORY[@history_pointer] = @line
      @history_pointer -= 1
      @line = Reline::HISTORY[@history_pointer]
    end
  end
  if @config.editing_mode_is?(:emacs, :vi_insert)
    @cursor_max = @cursor = calculate_width(@line)
    @byte_pointer = @line.bytesize
  elsif @config.editing_mode_is?(:vi_command)
    @byte_pointer = @cursor = 0
    @cursor_max = calculate_width(@line)
  end
  arg -= 1
  ed_prev_history(key, arg: arg) if arg > 0
end
別名為:previous_history
ed_prev_word(key) 按一下以切換來源
# File lib/reline/line_editor.rb, line 2679
        def ed_prev_word(key)
  if @byte_pointer > 0
    byte_size, width = Reline::Unicode.em_backward_word(@line, @byte_pointer)
    @byte_pointer -= byte_size
    @cursor -= width
  end
end
別名為:backward_word
ed_quoted_insert(str, arg: 1) 按一下以切換來源
# File lib/reline/line_editor.rb, line 1994
        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
別名為:quoted_insert
ed_search_next_history(key, arg: 1) 按一下以切換來源
# File lib/reline/line_editor.rb, line 2336
        def ed_search_next_history(key, arg: 1)
  substr = @line.slice(0, @byte_pointer)
  if @history_pointer.nil?
    return
  elsif @history_pointer == (Reline::HISTORY.size - 1) and not substr.empty?
    return
  end
  history = Reline::HISTORY.slice((@history_pointer + 1)..-1)
  h_pointer = nil
  line_no = nil
  if @is_multiline
    h_pointer = history.index { |h|
      h.split("\n").each_with_index { |l, i|
        if l.start_with?(substr)
          line_no = i
          break
        end
      }
      not line_no.nil?
    }
  else
    h_pointer = history.index { |l|
      l.start_with?(substr)
    }
  end
  h_pointer += @history_pointer + 1 if h_pointer and @history_pointer
  return if h_pointer.nil? and not substr.empty?
  @history_pointer = h_pointer
  if @is_multiline
    if @history_pointer.nil? and substr.empty?
      @buffer_of_lines = []
      @line_index = 0
    else
      @buffer_of_lines = Reline::HISTORY[@history_pointer].split("\n")
      @line_index = line_no
    end
    @buffer_of_lines = [String.new(encoding: @encoding)] if @buffer_of_lines.empty?
    @line = @buffer_of_lines[@line_index]
    @rerender_all = true
  else
    if @history_pointer.nil? and substr.empty?
      @line = ''
    else
      @line = Reline::HISTORY[@history_pointer]
    end
  end
  @cursor_max = calculate_width(@line)
  arg -= 1
  ed_search_next_history(key, arg: arg) if arg > 0
end
ed_search_prev_history(key, arg: 1) 按一下以切換來源
# File lib/reline/line_editor.rb, line 2289
        def ed_search_prev_history(key, arg: 1)
  history = nil
  h_pointer = nil
  line_no = nil
  substr = @line.slice(0, @byte_pointer)
  if @history_pointer.nil?
    return if not @line.empty? and substr.empty?
    history = Reline::HISTORY
  elsif @history_pointer.zero?
    history = nil
    h_pointer = nil
  else
    history = Reline::HISTORY.slice(0, @history_pointer)
  end
  return if history.nil?
  if @is_multiline
    h_pointer = history.rindex { |h|
      h.split("\n").each_with_index { |l, i|
        if l.start_with?(substr)
          line_no = i
          break
        end
      }
      not line_no.nil?
    }
  else
    h_pointer = history.rindex { |l|
      l.start_with?(substr)
    }
  end
  return if h_pointer.nil?
  @history_pointer = h_pointer
  if @is_multiline
    @buffer_of_lines = Reline::HISTORY[@history_pointer].split("\n")
    @buffer_of_lines = [String.new(encoding: @encoding)] if @buffer_of_lines.empty?
    @line_index = line_no
    @line = @buffer_of_lines[@line_index]
    @rerender_all = true
  else
    @line = Reline::HISTORY[@history_pointer]
  end
  @cursor_max = calculate_width(@line)
  arg -= 1
  ed_search_prev_history(key, arg: arg) if arg > 0
end
ed_transpose_chars(key) 按一下以切換來源
# File lib/reline/line_editor.rb, line 2710
        def ed_transpose_chars(key)
  if @byte_pointer > 0
    if @cursor_max > @cursor
      byte_size = Reline::Unicode.get_next_mbchar_size(@line, @byte_pointer)
      mbchar = @line.byteslice(@byte_pointer, byte_size)
      width = Reline::Unicode.get_mbchar_width(mbchar)
      @cursor += width
      @byte_pointer += byte_size
    end
    back1_byte_size = Reline::Unicode.get_prev_mbchar_size(@line, @byte_pointer)
    if (@byte_pointer - back1_byte_size) > 0
      back2_byte_size = Reline::Unicode.get_prev_mbchar_size(@line, @byte_pointer - back1_byte_size)
      back2_pointer = @byte_pointer - back1_byte_size - back2_byte_size
      @line, back2_mbchar = byteslice!(@line, back2_pointer, back2_byte_size)
      @line = byteinsert(@line, @byte_pointer - back2_byte_size, back2_mbchar)
    end
  end
end
別名為:transpose_chars
ed_transpose_words(key) 按一下以切換來源
# File lib/reline/line_editor.rb, line 2730
        def ed_transpose_words(key)
  left_word_start, middle_start, right_word_start, after_start = Reline::Unicode.ed_transpose_words(@line, @byte_pointer)
  before = @line.byteslice(0, left_word_start)
  left_word = @line.byteslice(left_word_start, middle_start - left_word_start)
  middle = @line.byteslice(middle_start, right_word_start - middle_start)
  right_word = @line.byteslice(right_word_start, after_start - right_word_start)
  after = @line.byteslice(after_start, @line.bytesize - after_start)
  return if left_word.empty? or right_word.empty?
  @line = before + right_word + middle + left_word + after
  from_head_to_left_word = before + right_word + middle + left_word
  @byte_pointer = from_head_to_left_word.bytesize
  @cursor = calculate_width(from_head_to_left_word)
end
別名為:transpose_words
ed_unassigned(key) 按一下以切換來源
Editline

ed-unassigned此編輯器指令總是會導致錯誤。

GNU Readline

沒有對應的巨集。

# File lib/reline/line_editor.rb, line 1911
def ed_unassigned(key) end
em_capitol_case(key) 按一下以切換來源
# File lib/reline/line_editor.rb, line 2745
        def em_capitol_case(key)
  if @line.bytesize > @byte_pointer
    byte_size, _, new_str = Reline::Unicode.em_forward_word_with_capitalization(@line, @byte_pointer)
    before = @line.byteslice(0, @byte_pointer)
    after = @line.byteslice((@byte_pointer + byte_size)..-1)
    @line = before + new_str + after
    @byte_pointer += new_str.bytesize
    @cursor += calculate_width(new_str)
  end
end
別名為:capitalize_word
em_delete(key) 按一下以切換來源
# File lib/reline/line_editor.rb, line 2597
        def em_delete(key)
  if @line.empty? and (not @is_multiline or @buffer_of_lines.size == 1) and key == "\C-d".ord
    @line = nil
    if @buffer_of_lines.size > 1
      scroll_down(@highest_in_all - @first_line_started_from)
    end
    Reline::IOGate.move_cursor_column(0)
    @eof = true
    finish
  elsif @byte_pointer < @line.bytesize
    splitted_last = @line.byteslice(@byte_pointer, @line.bytesize)
    mbchar = splitted_last.grapheme_clusters.first
    width = Reline::Unicode.get_mbchar_width(mbchar)
    @cursor_max -= width
    @line, = byteslice!(@line, @byte_pointer, mbchar.bytesize)
  elsif @is_multiline and @byte_pointer == @line.bytesize and @buffer_of_lines.size > @line_index + 1
    @cursor = calculate_width(@line)
    @byte_pointer = @line.bytesize
    @line += @buffer_of_lines.delete_at(@line_index + 1)
    @cursor_max = calculate_width(@line)
    @buffer_of_lines[@line_index] = @line
    @rerender_all = true
    @rest_height += 1
  end
end
別名:delete_char
em_delete_next_word(key) 按一下以切換來源
# File lib/reline/line_editor.rb, line 2688
        def em_delete_next_word(key)
  if @line.bytesize > @byte_pointer
    byte_size, width = Reline::Unicode.em_forward_word(@line, @byte_pointer)
    @line, word = byteslice!(@line, @byte_pointer, byte_size)
    @kill_ring.append(word)
    @cursor_max -= width
  end
end
別名:kill_word
em_delete_or_list(key) 按一下以切換來源
# File lib/reline/line_editor.rb, line 2624
        def em_delete_or_list(key)
  if @line.empty? or @byte_pointer < @line.bytesize
    em_delete(key)
  else # show completed list
    result = call_completion_proc
    if result.is_a?(Array)
      complete(result, true)
    end
  end
end
em_delete_prev_char(key, arg: 1) 按一下以切換來源
# File lib/reline/line_editor.rb, line 2520
        def em_delete_prev_char(key, arg: 1)
  if @is_multiline and @cursor == 0 and @line_index > 0
    @buffer_of_lines[@line_index] = @line
    @cursor = calculate_width(@buffer_of_lines[@line_index - 1])
    @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
    @line = @buffer_of_lines[@line_index]
    @cursor_max = calculate_width(@line)
    @rerender_all = true
  elsif @cursor > 0
    byte_size = Reline::Unicode.get_prev_mbchar_size(@line, @byte_pointer)
    @byte_pointer -= byte_size
    @line, mbchar = byteslice!(@line, @byte_pointer, byte_size)
    width = Reline::Unicode.get_mbchar_width(mbchar)
    @cursor -= width
    @cursor_max -= width
  end
  arg -= 1
  em_delete_prev_char(key, arg: arg) if arg > 0
end
em_exchange_mark(key) 按一下以切換來源
# File lib/reline/line_editor.rb, line 3284
        def em_exchange_mark(key)
  return unless @mark_pointer
  new_pointer = [@byte_pointer, @line_index]
  @previous_line_index = @line_index
  @byte_pointer, @line_index = @mark_pointer
  @cursor = calculate_width(@line.byteslice(0, @byte_pointer))
  @cursor_max = calculate_width(@line)
  @mark_pointer = new_pointer
end
em_kill_line(key) 按一下以切換來源
Editline

em-kill-line (未繫結) 刪除編輯緩衝區的全部內容,並將其儲存到剪下緩衝區。vi-kill-line-prev

GNU Readline

kill-whole-line (未繫結) 刪除目前行上的所有字元,不論指標位置為何。

# File lib/reline/line_editor.rb, line 2586
        def em_kill_line(key)
  if @line.size > 0
    @kill_ring.append(@line.dup, true)
    @line.clear
    @byte_pointer = 0
    @cursor_max = 0
    @cursor = 0
  end
end
別名:kill_whole_line
em_kill_region(key) 按一下以切換來源
# File lib/reline/line_editor.rb, line 2789
        def em_kill_region(key)
  if @byte_pointer > 0
    byte_size, width = Reline::Unicode.em_big_backward_word(@line, @byte_pointer)
    @line, deleted = byteslice!(@line, @byte_pointer - byte_size, byte_size)
    @byte_pointer -= byte_size
    @cursor -= width
    @cursor_max -= width
    @kill_ring.append(deleted, true)
  end
end
別名:unix_word_rubout
em_lower_case(key) 按一下以切換來源
# File lib/reline/line_editor.rb, line 2757
        def em_lower_case(key)
  if @line.bytesize > @byte_pointer
    byte_size, = Reline::Unicode.em_forward_word(@line, @byte_pointer)
    part = @line.byteslice(@byte_pointer, byte_size).grapheme_clusters.map { |mbchar|
      mbchar =~ /[A-Z]/ ? mbchar.downcase : mbchar
    }.join
    rest = @line.byteslice((@byte_pointer + byte_size)..-1)
    @line = @line.byteslice(0, @byte_pointer) + part
    @byte_pointer = @line.bytesize
    @cursor = calculate_width(@line)
    @cursor_max = @cursor + calculate_width(rest)
    @line += rest
  end
end
別名:downcase_word
em_meta_next(key) 按一下以切換來源
# File lib/reline/line_editor.rb, line 3295
        def em_meta_next(key)
end
em_next_word(key) 按一下以切換來源
# File lib/reline/line_editor.rb, line 2670
        def em_next_word(key)
  if @line.bytesize > @byte_pointer
    byte_size, width = Reline::Unicode.em_forward_word(@line, @byte_pointer)
    @byte_pointer += byte_size
    @cursor += width
  end
end
別名:forward_word
em_set_mark(key) 按一下以切換來源
# File lib/reline/line_editor.rb, line 3279
        def em_set_mark(key)
  @mark_pointer = [@byte_pointer, @line_index]
end
別名:set_mark
em_upper_case(key) 按一下以切換來源
# File lib/reline/line_editor.rb, line 2773
        def em_upper_case(key)
  if @line.bytesize > @byte_pointer
    byte_size, = Reline::Unicode.em_forward_word(@line, @byte_pointer)
    part = @line.byteslice(@byte_pointer, byte_size).grapheme_clusters.map { |mbchar|
      mbchar =~ /[a-z]/ ? mbchar.upcase : mbchar
    }.join
    rest = @line.byteslice((@byte_pointer + byte_size)..-1)
    @line = @line.byteslice(0, @byte_pointer) + part
    @byte_pointer = @line.bytesize
    @cursor = calculate_width(@line)
    @cursor_max = @cursor + calculate_width(rest)
    @line += rest
  end
end
別名:upcase_word
em_yank(key) 按一下以切換來源
# File lib/reline/line_editor.rb, line 2636
        def em_yank(key)
  yanked = @kill_ring.yank
  if yanked
    @line = byteinsert(@line, @byte_pointer, yanked)
    yanked_width = calculate_width(yanked)
    @cursor += yanked_width
    @cursor_max += yanked_width
    @byte_pointer += yanked.bytesize
  end
end
別名:yank
em_yank_pop(key) 按一下以切換來源
# File lib/reline/line_editor.rb, line 2648
        def em_yank_pop(key)
  yanked, prev_yank = @kill_ring.yank_pop
  if yanked
    prev_yank_width = calculate_width(prev_yank)
    @cursor -= prev_yank_width
    @cursor_max -= prev_yank_width
    @byte_pointer -= prev_yank.bytesize
    @line, = byteslice!(@line, @byte_pointer, prev_yank.bytesize)
    @line = byteinsert(@line, @byte_pointer, yanked)
    yanked_width = calculate_width(yanked)
    @cursor += yanked_width
    @cursor_max += yanked_width
    @byte_pointer += yanked.bytesize
  end
end
別名為: yank_pop
generate_searcher() 按一下以切換原始碼
# File lib/reline/line_editor.rb, line 2074
        def generate_searcher
  Fiber.new do |first_key|
    prev_search_key = first_key
    search_word = String.new(encoding: @encoding)
    multibyte_buf = String.new(encoding: 'ASCII-8BIT')
    last_hit = nil
    case first_key
    when "\C-r".ord
      prompt_name = 'reverse-i-search'
    when "\C-s".ord
      prompt_name = 'i-search'
    end
    loop do
      key = Fiber.yield(search_word)
      search_again = false
      case key
      when -1 # determined
        Reline.last_incremental_search = search_word
        break
      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 prev_search_key == key
        prev_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)
        @history_pointer = nil
        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 prev_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 prev_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 prev_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
          @history_pointer = history_pointer_base + hit_index
          hit = Reline::HISTORY[@history_pointer]
        end
      end
      case prev_search_key
      when "\C-r".ord
        prompt_name = 'reverse-i-search'
      when "\C-s".ord
        prompt_name = 'i-search'
      end
      if hit
        if @is_multiline
          @buffer_of_lines = hit.split("\n")
          @buffer_of_lines = [String.new(encoding: @encoding)] if @buffer_of_lines.empty?
          @line_index = @buffer_of_lines.size - 1
          @line = @buffer_of_lines.last
          @byte_pointer = @line.bytesize
          @cursor = @cursor_max = calculate_width(@line)
          @rerender_all = true
          @searching_prompt = "(%s)`%s'" % [prompt_name, search_word]
        else
          @line = hit
          @searching_prompt = "(%s)`%s': %s" % [prompt_name, search_word, hit]
        end
        last_hit = hit
      else
        if @is_multiline
          @rerender_all = true
          @searching_prompt = "(failed %s)`%s'" % [prompt_name, search_word]
        else
          @searching_prompt = "(failed %s)`%s': %s" % [prompt_name, search_word, last_hit]
        end
      end
    end
  end
end
inclusive?(method_obj) 按一下以切換原始碼
# File lib/reline/line_editor.rb, line 1412
        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
incremental_search_history(key) 按一下以切換原始碼
# File lib/reline/line_editor.rb, line 2192
        def incremental_search_history(key)
  unless @history_pointer
    if @is_multiline
      @line_backup_in_history = whole_buffer
    else
      @line_backup_in_history = @line
    end
  end
  searcher = generate_searcher
  searcher.resume(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
      if @is_multiline
        @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
        @line = @buffer_of_lines.last
        @rerender_all = true
      else
        @line = buffer
      end
      @searching_prompt = nil
      @waiting_proc = nil
      @cursor_max = calculate_width(@line)
      @cursor = @byte_pointer = 0
      @rerender_all = true
      @cached_prompt_list = nil
      searcher.resume(-1)
    when "\C-g".ord
      if @is_multiline
        @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
        @line = @buffer_of_lines.last
        @rerender_all = true
      else
        @line = @line_backup_in_history
      end
      @history_pointer = nil
      @searching_prompt = nil
      @waiting_proc = nil
      @line_backup_in_history = nil
      @cursor_max = calculate_width(@line)
      @cursor = @byte_pointer = 0
      @rerender_all = true
    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
        searcher.resume(k)
      else
        if @history_pointer
          line = Reline::HISTORY[@history_pointer]
        else
          line = @line_backup_in_history
        end
        if @is_multiline
          @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
          @line = @buffer_of_lines.last
          @rerender_all = true
        else
          @line_backup_in_history = @line
          @line = line
        end
        @searching_prompt = nil
        @waiting_proc = nil
        @cursor_max = calculate_width(@line)
        @cursor = @byte_pointer = 0
        @rerender_all = true
        @cached_prompt_list = nil
        searcher.resume(-1)
      end
    end
  }
end
insert_new_line(cursor_line, next_line) 按一下以切換原始碼
# File lib/reline/line_editor.rb, line 332
        def insert_new_line(cursor_line, next_line)
  @line = cursor_line
  @buffer_of_lines.insert(@line_index + 1, String.new(next_line, encoding: @encoding))
  @previous_line_index = @line_index
  @line_index += 1
  @just_cursor_moving = false
end
key_delete(key) 按一下以切換原始碼
# File lib/reline/line_editor.rb, line 1888
        def key_delete(key)
  if @config.editing_mode_is?(:vi_insert)
    ed_delete_next_char(key)
  elsif @config.editing_mode_is?(:emacs)
    em_delete(key)
  end
end
key_newline(key) 按一下以切換原始碼
# File lib/reline/line_editor.rb, line 1896
        def key_newline(key)
  if @is_multiline
    if (@buffer_of_lines.size - 1) == @line_index and @line.bytesize == @byte_pointer
      @add_newline_to_end_of_buffer = true
    end
    next_line = @line.byteslice(@byte_pointer, @line.bytesize - @byte_pointer)
    cursor_line = @line.byteslice(0, @byte_pointer)
    insert_new_line(cursor_line, next_line)
    @cursor = 0
    @check_new_auto_indent = true unless @in_pasting
  end
end
menu(target, list) 按一下以切換原始碼
modify_lines(before, force_recalc: false) 按一下以切換原始碼
# File lib/reline/line_editor.rb, line 1182
        def modify_lines(before, force_recalc: false)
  return before if !force_recalc && (before.nil? || before.empty? || simplified_rendering?)

  if after = @output_modifier_proc&.call("#{before.join("\n")}\n", complete: finished?)
    after.lines("\n").map { |l| l.chomp('') }
  else
    before
  end
end
move_completed_list(list, direction) 按一下以切換原始碼
# File lib/reline/line_editor.rb, line 1324
        def move_completed_list(list, direction)
  case @completion_state
  when CompletionState::NORMAL, CompletionState::COMPLETION,
       CompletionState::MENU, CompletionState::MENU_WITH_PERFECT_MATCH
    @completion_state = CompletionState::JOURNEY
    result = retrieve_completion_block
    return if result.nil?
    preposing, target, postposing = result
    @completion_journey_data = CompletionJourneyData.new(
      preposing, postposing,
      [target] + list.select{ |item| item.start_with?(target) }, 0)
    if @completion_journey_data.list.size == 1
      @completion_journey_data.pointer = 0
    else
      case direction
      when :up
        @completion_journey_data.pointer = @completion_journey_data.list.size - 1
      when :down
        @completion_journey_data.pointer = 1
      end
    end
    @completion_state = CompletionState::JOURNEY
  else
    case direction
    when :up
      @completion_journey_data.pointer -= 1
      if @completion_journey_data.pointer < 0
        @completion_journey_data.pointer = @completion_journey_data.list.size - 1
      end
    when :down
      @completion_journey_data.pointer += 1
      if @completion_journey_data.pointer >= @completion_journey_data.list.size
        @completion_journey_data.pointer = 0
      end
    end
  end
  completed = @completion_journey_data.list[@completion_journey_data.pointer]
  new_line = (@completion_journey_data.preposing + completed + @completion_journey_data.postposing).split("\n")[@line_index]
  @line = new_line.nil? ? String.new(encoding: @encoding) : new_line
  line_to_pointer = (@completion_journey_data.preposing + completed).split("\n").last
  line_to_pointer = String.new(encoding: @encoding) if line_to_pointer.nil?
  @cursor_max = calculate_width(@line)
  @cursor = calculate_width(line_to_pointer)
  @byte_pointer = line_to_pointer.bytesize
end
move_cursor_down(val) 按一下以切換原始碼
# File lib/reline/line_editor.rb, line 368
        def move_cursor_down(val)
  if val > 0
    Reline::IOGate.move_cursor_down(val)
    @rest_height -= val
    @rest_height = 0 if @rest_height < 0
  elsif val < 0
    move_cursor_up(-val)
  end
end
move_cursor_up(val) 按一下以切換原始碼
# File lib/reline/line_editor.rb, line 359
        def move_cursor_up(val)
  if val > 0
    Reline::IOGate.move_cursor_up(val)
    @rest_height += val
  elsif val < 0
    move_cursor_down(-val)
  end
end
normal_char(key) 按一下以切換原始碼
# File lib/reline/line_editor.rb, line 1495
        def normal_char(key)
  method_symbol = method_obj = nil
  if key.combined_char.is_a?(Symbol)
    process_key(key.combined_char, key.combined_char)
    return
  end
  @multibyte_buffer << key.combined_char
  if @multibyte_buffer.size > 1
    if @multibyte_buffer.dup.force_encoding(@encoding).valid_encoding?
      process_key(@multibyte_buffer.dup.force_encoding(@encoding), nil)
      @multibyte_buffer.clear
    else
      # invalid
      return
    end
  else # single byte
    return if key.char >= 128 # maybe, first byte of multi byte
    method_symbol = @config.editing_mode.get_method(key.combined_char)
    if key.with_meta and method_symbol == :ed_unassigned
      if @config.editing_mode_is?(:vi_command, :vi_insert)
        # split ESC + key in vi mode
        method_symbol = @config.editing_mode.get_method("\e".ord)
        process_key("\e".ord, method_symbol)
        method_symbol = @config.editing_mode.get_method(key.char)
        process_key(key.char, method_symbol)
      end
    else
      process_key(key.combined_char, method_symbol)
    end
    @multibyte_buffer.clear
  end
  if @config.editing_mode_is?(:vi_command) and @cursor > 0 and @cursor == @cursor_max
    byte_size = Reline::Unicode.get_prev_mbchar_size(@line, @byte_pointer)
    @byte_pointer -= byte_size
    mbchar = @line.byteslice(@byte_pointer, byte_size)
    width = Reline::Unicode.get_mbchar_width(mbchar)
    @cursor -= width
  end
end
padding_space_with_escape_sequences(str, width) 按一下以切換原始碼
# File lib/reline/line_editor.rb, line 658
        def padding_space_with_escape_sequences(str, width)
  padding_width = width - calculate_width(str, true)
  # padding_width should be only positive value. But macOS and Alacritty returns negative value.
  padding_width = 0 if padding_width < 0
  str + (' ' * padding_width)
end
process_auto_indent() 按一下以切換原始碼
# File lib/reline/line_editor.rb, line 1640
        def process_auto_indent
  return if not @check_new_auto_indent and @previous_line_index # move cursor up or down
  if @check_new_auto_indent and @previous_line_index and @previous_line_index > 0 and @line_index > @previous_line_index
    # Fix indent of a line when a newline is inserted to the next
    new_lines = whole_lines
    new_indent = @auto_indent_proc.(new_lines[0..-3].push(''), @line_index - 1, 0, true)
    md = @line.match(/\A */)
    prev_indent = md[0].count(' ')
    @line = ' ' * new_indent + @line.lstrip

    new_indent = nil
    result = @auto_indent_proc.(new_lines[0..-2], @line_index - 1, (new_lines[@line_index - 1].bytesize + 1), false)
    if result
      new_indent = result
    end
    if new_indent&.>= 0
      @line = ' ' * new_indent + @line.lstrip
    end
  end
  new_lines = whole_lines
  new_indent = @auto_indent_proc.(new_lines, @line_index, @byte_pointer, @check_new_auto_indent)
  if new_indent&.>= 0
    md = new_lines[@line_index].match(/\A */)
    prev_indent = md[0].count(' ')
    if @check_new_auto_indent
      line = @buffer_of_lines[@line_index] = ' ' * new_indent + @buffer_of_lines[@line_index].lstrip
      @cursor = new_indent
      @cursor_max = calculate_width(line)
      @byte_pointer = new_indent
    else
      @line = ' ' * new_indent + @line.lstrip
      @cursor += new_indent - prev_indent
      @cursor_max = calculate_width(@line)
      @byte_pointer += new_indent - prev_indent
    end
  end
  @check_new_auto_indent = false
end
process_insert(force: false) 按一下以切換原始碼
# File lib/reline/line_editor.rb, line 1913
        def process_insert(force: false)
  return if @continuous_insertion_buffer.empty? or (@in_pasting and not force)
  width = Reline::Unicode.calculate_width(@continuous_insertion_buffer)
  bytesize = @continuous_insertion_buffer.bytesize
  if @cursor == @cursor_max
    @line += @continuous_insertion_buffer
  else
    @line = byteinsert(@line, @byte_pointer, @continuous_insertion_buffer)
  end
  @byte_pointer += bytesize
  @cursor += width
  @cursor_max += width
  @continuous_insertion_buffer.clear
end
process_key(key, method_symbol) 按一下以切換原始碼
# File lib/reline/line_editor.rb, line 1438
        def process_key(key, method_symbol)
  if method_symbol and respond_to?(method_symbol, true)
    method_obj = method(method_symbol)
  else
    method_obj = nil
  end
  if method_symbol and key.is_a?(Symbol)
    if @vi_arg and argumentable?(method_obj)
      run_for_operators(key, method_symbol) do |with_operator|
        wrap_method_call(method_symbol, method_obj, key, with_operator)
      end
    else
      wrap_method_call(method_symbol, method_obj, key) if method_obj
    end
    @kill_ring.process
    if @vi_arg
      @rerender_al = true
      @vi_arg = nil
    end
  elsif @vi_arg
    if key.chr =~ /[0-9]/
      ed_argument_digit(key)
    else
      if argumentable?(method_obj)
        run_for_operators(key, method_symbol) do |with_operator|
          wrap_method_call(method_symbol, method_obj, key, with_operator)
        end
      elsif @waiting_proc
        @waiting_proc.(key)
      elsif method_obj
        wrap_method_call(method_symbol, method_obj, key)
      else
        ed_insert(key) unless @config.editing_mode_is?(:vi_command)
      end
      @kill_ring.process
      if @vi_arg
        @rerender_all = true
        @vi_arg = nil
      end
    end
  elsif @waiting_proc
    @waiting_proc.(key)
    @kill_ring.process
  elsif method_obj
    if method_symbol == :ed_argument_digit
      wrap_method_call(method_symbol, method_obj, key)
    else
      run_for_operators(key, method_symbol) do |with_operator|
        wrap_method_call(method_symbol, method_obj, key, with_operator)
      end
    end
    @kill_ring.process
  else
    ed_insert(key) unless @config.editing_mode_is?(:vi_command)
  end
end
range_subtract(base_ranges, subtract_ranges) 按一下以切換原始碼
# File lib/reline/line_editor.rb, line 665
        def range_subtract(base_ranges, subtract_ranges)
  indices = base_ranges.flat_map(&:to_a).uniq.sort - subtract_ranges.flat_map(&:to_a)
  chunks = indices.chunk_while { |a, b| a + 1 == b }
  chunks.map { |a| a.first...a.last + 1 }
end
render_dialog(cursor_column) 按一下以切換原始碼
# File lib/reline/line_editor.rb, line 649
        def render_dialog(cursor_column)
  changes = @dialogs.map do |dialog|
    old_dialog = dialog.dup
    update_each_dialog(dialog, cursor_column)
    [old_dialog, dialog]
  end
  render_dialog_changes(changes, cursor_column)
end
render_dialog_changes(changes, cursor_column) 按一下以切換原始碼
# File lib/reline/line_editor.rb, line 677
        def render_dialog_changes(changes, cursor_column)
  # Collect x-coordinate range and content of previous and current dialogs for each line
  old_dialog_ranges = {}
  new_dialog_ranges = {}
  new_dialog_contents = {}
  changes.each do |old_dialog, new_dialog|
    if old_dialog.contents
      x_range, y_range = dialog_range(old_dialog, @previous_rendered_dialog_y)
      y_range.each do |y|
        (old_dialog_ranges[y] ||= []) << x_range
      end
    end
    if new_dialog.contents
      x_range, y_range = dialog_range(new_dialog, @first_line_started_from + @started_from)
      y_range.each do |y|
        (new_dialog_ranges[y] ||= []) << x_range
        (new_dialog_contents[y] ||= []) << [x_range, new_dialog.contents[y - y_range.begin]]
      end
    end
  end
  return if old_dialog_ranges.empty? && new_dialog_ranges.empty?

  # Calculate x-coordinate ranges to restore text that was hidden behind dialogs for each line
  ranges_to_restore = {}
  subtract_cache = {}
  old_dialog_ranges.each do |y, old_x_ranges|
    new_x_ranges = new_dialog_ranges[y] || []
    ranges = subtract_cache[[old_x_ranges, new_x_ranges]] ||= range_subtract(old_x_ranges, new_x_ranges)
    ranges_to_restore[y] = ranges if ranges.any?
  end

  # Create visual_lines for restoring text hidden behind dialogs
  if ranges_to_restore.any?
    lines = whole_lines
    prompt, _prompt_width, prompt_list = check_multiline_prompt(lines, force_recalc: true)
    modified_lines = modify_lines(lines, force_recalc: true)
    visual_lines = []
    modified_lines.each_with_index { |l, i|
      pr = prompt_list ? prompt_list[i] : prompt
      vl, = split_by_width(pr + l, @screen_size.last)
      vl.compact!
      visual_lines.concat(vl)
    }
  end

  # Clear and rerender all dialogs line by line
  Reline::IOGate.hide_cursor
  ymin, ymax = (ranges_to_restore.keys + new_dialog_ranges.keys).minmax
  scroll_partial_screen = @scroll_partial_screen || 0
  screen_y_range = scroll_partial_screen..(scroll_partial_screen + @screen_height - 1)
  ymin = ymin.clamp(screen_y_range.begin, screen_y_range.end)
  ymax = ymax.clamp(screen_y_range.begin, screen_y_range.end)
  dialog_y = @first_line_started_from + @started_from
  cursor_y = dialog_y
  if @highest_in_all <= ymax
    scroll_down(ymax - cursor_y)
    move_cursor_up(ymax - cursor_y)
  end
  (ymin..ymax).each do |y|
    move_cursor_down(y - cursor_y)
    cursor_y = y
    new_x_ranges = new_dialog_ranges[y]
    restore_ranges = ranges_to_restore[y]
    # Restore text that was hidden behind dialogs
    if restore_ranges
      line = visual_lines[y] || ''
      restore_ranges.each do |range|
        col = range.begin
        width = range.end - range.begin
        s = padding_space_with_escape_sequences(Reline::Unicode.take_range(line, col, width), width)
        Reline::IOGate.move_cursor_column(col)
        @output.write "\e[0m#{s}\e[0m"
      end
      max_column = [calculate_width(line, true), new_x_ranges&.map(&:end)&.max || 0].max
      if max_column < restore_ranges.map(&:end).max
        Reline::IOGate.move_cursor_column(max_column)
        Reline::IOGate.erase_after_cursor
      end
    end
    # Render dialog contents
    new_dialog_contents[y]&.each do |x_range, content|
      Reline::IOGate.move_cursor_column(x_range.begin)
      @output.write "\e[0m#{content}\e[0m"
    end
  end
  move_cursor_up(cursor_y - dialog_y)
  Reline::IOGate.move_cursor_column(cursor_column)
  Reline::IOGate.show_cursor

  @previous_rendered_dialog_y = dialog_y
end
render_partial(prompt, prompt_width, line_to_render, this_started_from, with_control: true) 按一下以切換原始碼
# File lib/reline/line_editor.rb, line 1085
        def render_partial(prompt, prompt_width, line_to_render, this_started_from, with_control: true)
  visual_lines, height = split_by_width(line_to_render.nil? ? prompt : prompt + line_to_render, @screen_size.last)
  cursor_up_from_last_line = 0
  if @scroll_partial_screen
    last_visual_line = this_started_from + (height - 1)
    last_screen_line = @scroll_partial_screen + (@screen_height - 1)
    if (@scroll_partial_screen - this_started_from) >= height
      # Render nothing because this line is before the screen.
      visual_lines = []
    elsif this_started_from > last_screen_line
      # Render nothing because this line is after the screen.
      visual_lines = []
    else
      deleted_lines_before_screen = []
      if @scroll_partial_screen > this_started_from and last_visual_line >= @scroll_partial_screen
        # A part of visual lines are before the screen.
        deleted_lines_before_screen = visual_lines.shift((@scroll_partial_screen - this_started_from) * 2)
        deleted_lines_before_screen.compact!
      end
      if this_started_from <= last_screen_line and last_screen_line < last_visual_line
        # A part of visual lines are after the screen.
        visual_lines.pop((last_visual_line - last_screen_line) * 2)
      end
      move_cursor_up(deleted_lines_before_screen.size - @started_from)
      cursor_up_from_last_line = @started_from - deleted_lines_before_screen.size
    end
  end
  if with_control
    if height > @highest_in_this
      diff = height - @highest_in_this
      scroll_down(diff)
      @highest_in_all += diff
      @highest_in_this = height
      move_cursor_up(diff)
    elsif height < @highest_in_this
      diff = @highest_in_this - height
      @highest_in_all -= diff
      @highest_in_this = height
    end
    move_cursor_up(@started_from)
    @started_from = calculate_height_by_width(prompt_width + @cursor) - 1
    cursor_up_from_last_line = height - 1 - @started_from
  end
  if Reline::Unicode::CSI_REGEXP.match?(prompt + line_to_render)
    @output.write "\e[0m" # clear character decorations
  end
  visual_lines.each_with_index do |line, index|
    Reline::IOGate.move_cursor_column(0)
    if line.nil?
      if calculate_width(visual_lines[index - 1], true) == Reline::IOGate.get_screen_size.last
        # reaches the end of line
        if Reline::IOGate.win? and Reline::IOGate.win_legacy_console?
          # A newline is automatically inserted if a character is rendered at
          # eol on command prompt.
        else
          # When the cursor is at the end of the line and erases characters
          # after the cursor, some terminals delete the character at the
          # cursor position.
          move_cursor_down(1)
          Reline::IOGate.move_cursor_column(0)
        end
      else
        Reline::IOGate.erase_after_cursor
        move_cursor_down(1)
        Reline::IOGate.move_cursor_column(0)
      end
      next
    end
    @output.write line
    if Reline::IOGate.win? and Reline::IOGate.win_legacy_console? and calculate_width(line, true) == Reline::IOGate.get_screen_size.last
      # A newline is automatically inserted if a character is rendered at eol on command prompt.
      @rest_height -= 1 if @rest_height > 0
    end
    @output.flush
    if @first_prompt
      @first_prompt = false
      @pre_input_hook&.call
    end
  end
  unless visual_lines.empty?
    Reline::IOGate.erase_after_cursor
    Reline::IOGate.move_cursor_column(0)
  end
  if with_control
    # Just after rendring, so the cursor is on the last line.
    if finished?
      Reline::IOGate.move_cursor_column(0)
    else
      # Moves up from bottom of lines to the cursor position.
      move_cursor_up(cursor_up_from_last_line)
      # This logic is buggy if a fullwidth char is wrapped because there is only one halfwidth at end of a line.
      Reline::IOGate.move_cursor_column((prompt_width + @cursor) % @screen_size.last)
    end
  end
  height
end
render_whole_lines(lines, prompt, prompt_width) 按一下以切換來源
# File lib/reline/line_editor.rb, line 1059
        def render_whole_lines(lines, prompt, prompt_width)
  rendered_height = 0
  modify_lines(lines).each_with_index do |line, index|
    if prompt.is_a?(Array)
      line_prompt = prompt[index]
      prompt_width = calculate_width(line_prompt, true)
    else
      line_prompt = prompt
    end
    height = render_partial(line_prompt, prompt_width, line, rendered_height, with_control: false)
    if index < (lines.size - 1)
      if @scroll_partial_screen
        if (@scroll_partial_screen - height) < rendered_height and (@scroll_partial_screen + @screen_height - 1) >= (rendered_height + height)
          move_cursor_down(1)
        end
      else
        scroll_down(1)
      end
      rendered_height += height
    else
      rendered_height += height - 1
    end
  end
  rendered_height
end
rerender_added_newline(prompt, prompt_width, prompt_list) 按一下以切換來源
# File lib/reline/line_editor.rb, line 908
        def rerender_added_newline(prompt, prompt_width, prompt_list)
  @buffer_of_lines[@previous_line_index] = @line
  @line = @buffer_of_lines[@line_index]
  @previous_line_index = nil
  if @in_pasting
    scroll_down(1)
  else
    lines = whole_lines
    prev_line_prompt = @prompt_proc ? prompt_list[@line_index - 1] : prompt
    prev_line_prompt_width = @prompt_proc ? calculate_width(prev_line_prompt, true) : prompt_width
    prev_line = modify_lines(lines)[@line_index - 1]
    move_cursor_up(@started_from)
    render_partial(prev_line_prompt, prev_line_prompt_width, prev_line, @first_line_started_from + @started_from, with_control: false)
    scroll_down(1)
    render_partial(prompt, prompt_width, @line, @first_line_started_from + @started_from + 1, with_control: false)
  end
  @cursor = @cursor_max = calculate_width(@line)
  @byte_pointer = @line.bytesize
  @highest_in_all += @highest_in_this
  @highest_in_this = calculate_height_by_width(prompt_width + @cursor_max)
  @first_line_started_from += @started_from + 1
  @started_from = calculate_height_by_width(prompt_width + @cursor) - 1
end
rerender_all_lines() 按一下以切換來源
# File lib/reline/line_editor.rb, line 1004
        def rerender_all_lines
  move_cursor_up(@first_line_started_from + @started_from)
  Reline::IOGate.move_cursor_column(0)
  back = 0
  new_buffer = whole_lines
  prompt, prompt_width, prompt_list = check_multiline_prompt(new_buffer)
  new_buffer.each_with_index do |line, index|
    prompt_width = calculate_width(prompt_list[index], true) if @prompt_proc
    width = prompt_width + calculate_width(line)
    height = calculate_height_by_width(width)
    back += height
  end
  old_highest_in_all = @highest_in_all
  if @line_index.zero?
    new_first_line_started_from = 0
  else
    new_first_line_started_from = calculate_height_by_lines(new_buffer[0..(@line_index - 1)], prompt_list || prompt)
  end
  new_started_from = calculate_height_by_width(prompt_width + @cursor) - 1
  calculate_scroll_partial_screen(back, new_first_line_started_from + new_started_from)
  if @scroll_partial_screen
    move_cursor_up(@first_line_started_from + @started_from)
    scroll_down(@screen_height - 1)
    move_cursor_up(@screen_height)
    Reline::IOGate.move_cursor_column(0)
  elsif back > old_highest_in_all
    scroll_down(back - 1)
    move_cursor_up(back - 1)
  elsif back < old_highest_in_all
    scroll_down(back)
    Reline::IOGate.erase_after_cursor
    (old_highest_in_all - back - 1).times do
      scroll_down(1)
      Reline::IOGate.erase_after_cursor
    end
    move_cursor_up(old_highest_in_all - 1)
  end
  render_whole_lines(new_buffer, prompt_list || prompt, prompt_width)
  if @prompt_proc
    prompt = prompt_list[@line_index]
    prompt_width = calculate_width(prompt, true)
  end
  @highest_in_this = calculate_height_by_width(prompt_width + @cursor_max)
  @highest_in_all = back
  @first_line_started_from = new_first_line_started_from
  @started_from = new_started_from
  if @scroll_partial_screen
    Reline::IOGate.move_cursor_up(@screen_height - (@first_line_started_from + @started_from - @scroll_partial_screen) - 1)
    Reline::IOGate.move_cursor_column((prompt_width + @cursor) % @screen_size.last)
  else
    move_cursor_down(@first_line_started_from + @started_from - back + 1)
    Reline::IOGate.move_cursor_column((prompt_width + @cursor) % @screen_size.last)
  end
end
rerender_changed_current_line() 按一下以切換來源
# File lib/reline/line_editor.rb, line 960
        def rerender_changed_current_line
  new_lines = whole_lines
  prompt, prompt_width, prompt_list = check_multiline_prompt(new_lines)
  all_height = calculate_height_by_lines(new_lines, prompt_list || prompt)
  diff = all_height - @highest_in_all
  move_cursor_down(@highest_in_all - @first_line_started_from - @started_from - 1)
  if diff > 0
    scroll_down(diff)
    move_cursor_up(all_height - 1)
  elsif diff < 0
    (-diff).times do
      Reline::IOGate.move_cursor_column(0)
      Reline::IOGate.erase_after_cursor
      move_cursor_up(1)
    end
    move_cursor_up(all_height - 1)
  else
    move_cursor_up(all_height - 1)
  end
  @highest_in_all = all_height
  back = render_whole_lines(new_lines, prompt_list || prompt, prompt_width)
  move_cursor_up(back)
  if @previous_line_index
    @buffer_of_lines[@previous_line_index] = @line
    @line = @buffer_of_lines[@line_index]
  end
  @first_line_started_from =
    if @line_index.zero?
      0
    else
      calculate_height_by_lines(@buffer_of_lines[0..(@line_index - 1)], prompt_list || prompt)
    end
  if @prompt_proc
    prompt = prompt_list[@line_index]
    prompt_width = calculate_width(prompt, true)
  end
  move_cursor_down(@first_line_started_from)
  calculate_nearest_cursor
  @started_from = calculate_height_by_width(prompt_width + @cursor) - 1
  move_cursor_down(@started_from)
  Reline::IOGate.move_cursor_column((prompt_width + @cursor) % @screen_size.last)
  @highest_in_this = calculate_height_by_width(prompt_width + @cursor_max)
end
run_for_operators(key, method_symbol, &block) 按一下以切換來源
# File lib/reline/line_editor.rb, line 1370
        def run_for_operators(key, method_symbol, &block)
  if @waiting_operator_proc
    if VI_MOTIONS.include?(method_symbol)
      old_cursor, old_byte_pointer = @cursor, @byte_pointer
      @vi_arg = @waiting_operator_vi_arg if @waiting_operator_vi_arg&.> 1
      block.(true)
      unless @waiting_proc
        cursor_diff, byte_pointer_diff = @cursor - old_cursor, @byte_pointer - old_byte_pointer
        @cursor, @byte_pointer = old_cursor, old_byte_pointer
        @waiting_operator_proc.(cursor_diff, byte_pointer_diff)
      else
        old_waiting_proc = @waiting_proc
        old_waiting_operator_proc = @waiting_operator_proc
        current_waiting_operator_proc = @waiting_operator_proc
        @waiting_proc = proc { |k|
          old_cursor, old_byte_pointer = @cursor, @byte_pointer
          old_waiting_proc.(k)
          cursor_diff, byte_pointer_diff = @cursor - old_cursor, @byte_pointer - old_byte_pointer
          @cursor, @byte_pointer = old_cursor, old_byte_pointer
          current_waiting_operator_proc.(cursor_diff, byte_pointer_diff)
          @waiting_operator_proc = old_waiting_operator_proc
        }
      end
    else
      # Ignores operator when not motion is given.
      block.(false)
    end
    @waiting_operator_proc = nil
    @waiting_operator_vi_arg = nil
    if @vi_arg
      @rerender_all = true
      @vi_arg = nil
    end
  else
    block.(false)
  end
end
scroll_down(val) 按一下以切換來源
# File lib/reline/line_editor.rb, line 348
        def scroll_down(val)
  if val <= @rest_height
    Reline::IOGate.move_cursor_down(val)
    @rest_height -= val
  else
    Reline::IOGate.move_cursor_down(@rest_height)
    Reline::IOGate.scroll_down(val - @rest_height)
    @rest_height = 0
  end
end
search_next_char(key, arg, need_prev_char: false, inclusive: false) 按一下以切換來源
# File lib/reline/line_editor.rb, line 3168
        def search_next_char(key, arg, need_prev_char: false, inclusive: false)
  if key.instance_of?(String)
    inputed_char = key
  else
    inputed_char = key.chr
  end
  prev_total = nil
  total = nil
  found = false
  @line.byteslice(@byte_pointer..-1).grapheme_clusters.each do |mbchar|
    # total has [byte_size, cursor]
    unless total
      # skip cursor point
      width = Reline::Unicode.get_mbchar_width(mbchar)
      total = [mbchar.bytesize, width]
    else
      if inputed_char == mbchar
        arg -= 1
        if arg.zero?
          found = true
          break
        end
      end
      width = Reline::Unicode.get_mbchar_width(mbchar)
      prev_total = total
      total = [total.first + mbchar.bytesize, total.last + width]
    end
  end
  if not need_prev_char and found and total
    byte_size, width = total
    @byte_pointer += byte_size
    @cursor += width
  elsif need_prev_char and found and prev_total
    byte_size, width = prev_total
    @byte_pointer += byte_size
    @cursor += width
  end
  if inclusive
    byte_size = Reline::Unicode.get_next_mbchar_size(@line, @byte_pointer)
    if byte_size > 0
      c = @line.byteslice(@byte_pointer, byte_size)
      width = Reline::Unicode.get_mbchar_width(c)
      @byte_pointer += byte_size
      @cursor += width
    end
  end
  @waiting_proc = nil
end
search_prev_char(key, arg, need_next_char = false) 按一下以切換來源
# File lib/reline/line_editor.rb, line 3225
        def search_prev_char(key, arg, need_next_char = false)
  if key.instance_of?(String)
    inputed_char = key
  else
    inputed_char = key.chr
  end
  prev_total = nil
  total = nil
  found = false
  @line.byteslice(0..@byte_pointer).grapheme_clusters.reverse_each do |mbchar|
    # total has [byte_size, cursor]
    unless total
      # skip cursor point
      width = Reline::Unicode.get_mbchar_width(mbchar)
      total = [mbchar.bytesize, width]
    else
      if inputed_char == mbchar
        arg -= 1
        if arg.zero?
          found = true
          break
        end
      end
      width = Reline::Unicode.get_mbchar_width(mbchar)
      prev_total = total
      total = [total.first + mbchar.bytesize, total.last + width]
    end
  end
  if not need_next_char and found and total
    byte_size, width = total
    @byte_pointer -= byte_size
    @cursor -= width
  elsif need_next_char and found and prev_total
    byte_size, width = prev_total
    @byte_pointer -= byte_size
    @cursor -= width
  end
  @waiting_proc = nil
end
show_menu() 按一下以切換來源
# File lib/reline/line_editor.rb, line 1192
        def show_menu
  scroll_down(@highest_in_all - @first_line_started_from)
  @rerender_all = true
  @menu_info.list.sort!.each do |item|
    Reline::IOGate.move_cursor_column(0)
    @output.write item
    @output.flush
    scroll_down(1)
  end
  scroll_down(@highest_in_all - 1)
  move_cursor_up(@highest_in_all - 1 - @first_line_started_from)
end
split_by_width(str, max_width) 按一下以切換來源
# File lib/reline/line_editor.rb, line 344
        def split_by_width(str, max_width)
  Reline::Unicode.split_by_width(str, max_width, @encoding)
end
update_each_dialog(dialog, cursor_column) 按一下以切換來源
# File lib/reline/line_editor.rb, line 769
        def update_each_dialog(dialog, cursor_column)
  if @in_pasting
    dialog.contents = nil
    dialog.trap_key = nil
    return
  end
  dialog.set_cursor_pos(cursor_column, @first_line_started_from + @started_from)
  dialog_render_info = dialog.call(@last_key)
  if dialog_render_info.nil? or dialog_render_info.contents.nil? or dialog_render_info.contents.empty?
    dialog.contents = nil
    dialog.trap_key = nil
    return
  end
  contents = dialog_render_info.contents
  pointer = dialog.pointer
  if dialog_render_info.width
    dialog.width = dialog_render_info.width
  else
    dialog.width = contents.map { |l| calculate_width(l, true) }.max
  end
  height = dialog_render_info.height || DIALOG_DEFAULT_HEIGHT
  height = contents.size if contents.size < height
  if contents.size > height
    if dialog.pointer
      if dialog.pointer < 0
        dialog.scroll_top = 0
      elsif (dialog.pointer - dialog.scroll_top) >= (height - 1)
        dialog.scroll_top = dialog.pointer - (height - 1)
      elsif (dialog.pointer - dialog.scroll_top) < 0
        dialog.scroll_top = dialog.pointer
      end
      pointer = dialog.pointer - dialog.scroll_top
    else
      dialog.scroll_top = 0
    end
    contents = contents[dialog.scroll_top, height]
  end
  if dialog_render_info.scrollbar and dialog_render_info.contents.size > height
    bar_max_height = height * 2
    moving_distance = (dialog_render_info.contents.size - height) * 2
    position_ratio = dialog.scroll_top.zero? ? 0.0 : ((dialog.scroll_top * 2).to_f / moving_distance)
    bar_height = (bar_max_height * ((contents.size * 2).to_f / (dialog_render_info.contents.size * 2))).floor.to_i
    bar_height = MINIMUM_SCROLLBAR_HEIGHT if bar_height < MINIMUM_SCROLLBAR_HEIGHT
    scrollbar_pos = ((bar_max_height - bar_height) * position_ratio).floor.to_i
  else
    scrollbar_pos = nil
  end
  upper_space = @first_line_started_from - @started_from
  dialog.column = dialog_render_info.pos.x
  dialog.width += @block_elem_width if scrollbar_pos
  diff = (dialog.column + dialog.width) - (@screen_size.last)
  if diff > 0
    dialog.column -= diff
  end
  if (@rest_height - dialog_render_info.pos.y) >= height
    dialog.vertical_offset = dialog_render_info.pos.y + 1
  elsif upper_space >= height
    dialog.vertical_offset = dialog_render_info.pos.y - height
  else
    dialog.vertical_offset = dialog_render_info.pos.y + 1
  end
  if dialog.column < 0
    dialog.column = 0
    dialog.width = @screen_size.last
  end
  face = Reline::Face[dialog_render_info.face || :default]
  scrollbar_sgr = face[:scrollbar]
  default_sgr = face[:default]
  enhanced_sgr = face[:enhanced]
  dialog.contents = contents.map.with_index do |item, i|
    line_sgr = i == pointer ? enhanced_sgr : default_sgr
    str_width = dialog.width - (scrollbar_pos.nil? ? 0 : @block_elem_width)
    str = padding_space_with_escape_sequences(Reline::Unicode.take_range(item, 0, str_width), str_width)
    colored_content = "#{line_sgr}#{str}"
    if scrollbar_pos
      if scrollbar_pos <= (i * 2) and (i * 2 + 1) < (scrollbar_pos + bar_height)
        colored_content + scrollbar_sgr + @full_block
      elsif scrollbar_pos <= (i * 2) and (i * 2) < (scrollbar_pos + bar_height)
        colored_content + scrollbar_sgr + @upper_half_block
      elsif scrollbar_pos <= (i * 2 + 1) and (i * 2) < (scrollbar_pos + bar_height)
        colored_content + scrollbar_sgr + @lower_half_block
      else
        colored_content + scrollbar_sgr + ' ' * @block_elem_width
      end
    else
      colored_content
    end
  end
end
vi_add(key) 按一下以切換來源
# File lib/reline/line_editor.rb, line 2811
        def vi_add(key)
  @config.editing_mode = :vi_insert
  ed_next_char(key)
end
vi_add_at_eol(key) 按一下以切換來源
# File lib/reline/line_editor.rb, line 2925
        def vi_add_at_eol(key)
  ed_move_to_end(key)
  @config.editing_mode = :vi_insert
end
vi_change_meta(key, arg: 1) 按一下以切換來源
# File lib/reline/line_editor.rb, line 2951
        def vi_change_meta(key, arg: 1)
  @drop_terminate_spaces = true
  @waiting_operator_proc = proc { |cursor_diff, byte_pointer_diff|
    if byte_pointer_diff > 0
      @line, cut = byteslice!(@line, @byte_pointer, byte_pointer_diff)
    elsif byte_pointer_diff < 0
      @line, cut = byteslice!(@line, @byte_pointer + byte_pointer_diff, -byte_pointer_diff)
    end
    copy_for_vi(cut)
    @cursor += cursor_diff if cursor_diff < 0
    @cursor_max -= cursor_diff.abs
    @byte_pointer += byte_pointer_diff if byte_pointer_diff < 0
    @config.editing_mode = :vi_insert
    @drop_terminate_spaces = false
  }
  @waiting_operator_vi_arg = arg
end
vi_command_mode(key) 按一下以切換來源
# File lib/reline/line_editor.rb, line 2816
        def vi_command_mode(key)
  ed_prev_char(key)
  @config.editing_mode = :vi_command
end
別名為: vi_movement_mode
vi_delete_meta(key, arg: 1) 按一下以切換來源
# File lib/reline/line_editor.rb, line 2969
        def vi_delete_meta(key, arg: 1)
  @waiting_operator_proc = proc { |cursor_diff, byte_pointer_diff|
    if byte_pointer_diff > 0
      @line, cut = byteslice!(@line, @byte_pointer, byte_pointer_diff)
    elsif byte_pointer_diff < 0
      @line, cut = byteslice!(@line, @byte_pointer + byte_pointer_diff, -byte_pointer_diff)
    end
    copy_for_vi(cut)
    @cursor += cursor_diff if cursor_diff < 0
    @cursor_max -= cursor_diff.abs
    @byte_pointer += byte_pointer_diff if byte_pointer_diff < 0
  }
  @waiting_operator_vi_arg = arg
end
vi_delete_prev_char(key) 按一下以切換來源
# File lib/reline/line_editor.rb, line 2900
        def vi_delete_prev_char(key)
  if @is_multiline and @cursor == 0 and @line_index > 0
    @buffer_of_lines[@line_index] = @line
    @cursor = calculate_width(@buffer_of_lines[@line_index - 1])
    @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
    @line = @buffer_of_lines[@line_index]
    @cursor_max = calculate_width(@line)
    @rerender_all = true
  elsif @cursor > 0
    byte_size = Reline::Unicode.get_prev_mbchar_size(@line, @byte_pointer)
    @byte_pointer -= byte_size
    @line, mbchar = byteslice!(@line, @byte_pointer, byte_size)
    width = Reline::Unicode.get_mbchar_width(mbchar)
    @cursor -= width
    @cursor_max -= width
  end
end
vi_end_big_word(key, arg: 1, inclusive: false) 按一下以切換來源
# File lib/reline/line_editor.rb, line 2881
        def vi_end_big_word(key, arg: 1, inclusive: false)
  if @line.bytesize > @byte_pointer
    byte_size, width = Reline::Unicode.vi_big_forward_end_word(@line, @byte_pointer)
    @byte_pointer += byte_size
    @cursor += width
  end
  arg -= 1
  if inclusive and arg.zero?
    byte_size = Reline::Unicode.get_next_mbchar_size(@line, @byte_pointer)
    if byte_size > 0
      c = @line.byteslice(@byte_pointer, byte_size)
      width = Reline::Unicode.get_mbchar_width(c)
      @byte_pointer += byte_size
      @cursor += width
    end
  end
  vi_end_big_word(key, arg: arg) if arg > 0
end
vi_end_word(key, arg: 1, inclusive: false) 按一下切換來源
# File lib/reline/line_editor.rb, line 2842
        def vi_end_word(key, arg: 1, inclusive: false)
  if @line.bytesize > @byte_pointer
    byte_size, width = Reline::Unicode.vi_forward_end_word(@line, @byte_pointer)
    @byte_pointer += byte_size
    @cursor += width
  end
  arg -= 1
  if inclusive and arg.zero?
    byte_size = Reline::Unicode.get_next_mbchar_size(@line, @byte_pointer)
    if byte_size > 0
      c = @line.byteslice(@byte_pointer, byte_size)
      width = Reline::Unicode.get_mbchar_width(c)
      @byte_pointer += byte_size
      @cursor += width
    end
  end
  vi_end_word(key, arg: arg) if arg > 0
end
vi_first_print(key) 按一下切換來源
# File lib/reline/line_editor.rb, line 2050
        def vi_first_print(key)
  @byte_pointer, @cursor = Reline::Unicode.vi_first_print(@line)
end
vi_histedit(key) 按一下切換來源
# File lib/reline/line_editor.rb, line 3054
        def vi_histedit(key)
  path = Tempfile.open { |fp|
    if @is_multiline
      fp.write whole_lines.join("\n")
    else
      fp.write @line
    end
    fp.path
  }
  system("#{ENV['EDITOR']} #{path}")
  if @is_multiline
    @buffer_of_lines = File.read(path).split("\n")
    @buffer_of_lines = [String.new(encoding: @encoding)] if @buffer_of_lines.empty?
    @line_index = 0
    @line = @buffer_of_lines[@line_index]
    @rerender_all = true
  else
    @line = File.read(path)
  end
  finish
end
vi_insert(key) 按一下切換來源
# File lib/reline/line_editor.rb, line 2807
        def vi_insert(key)
  @config.editing_mode = :vi_insert
end
vi_insert_at_bol(key) 按一下切換來源
# File lib/reline/line_editor.rb, line 2920
        def vi_insert_at_bol(key)
  ed_move_to_beg(key)
  @config.editing_mode = :vi_insert
end
vi_join_lines(key, arg: 1) 按一下切換來源
# File lib/reline/line_editor.rb, line 3265
        def vi_join_lines(key, arg: 1)
  if @is_multiline and @buffer_of_lines.size > @line_index + 1
    @cursor = calculate_width(@line)
    @byte_pointer = @line.bytesize
    @line += ' ' + @buffer_of_lines.delete_at(@line_index + 1).lstrip
    @cursor_max = calculate_width(@line)
    @buffer_of_lines[@line_index] = @line
    @rerender_all = true
    @rest_height += 1
  end
  arg -= 1
  vi_join_lines(key, arg: arg) if arg > 0
end
vi_kill_line_prev(key) 按一下切換來源
Editline

vi-kill-line-prev (vi: Ctrl-U) 刪除編輯緩衝區開頭到游標之間的字串,並將其儲存到剪下緩衝區。

GNU Readline

unix-line-discard (C-u) 從游標往後刪除到目前行的開頭。

# File lib/reline/line_editor.rb, line 2571
        def vi_kill_line_prev(key)
  if @byte_pointer > 0
    @line, deleted = byteslice!(@line, 0, @byte_pointer)
    @byte_pointer = 0
    @kill_ring.append(deleted, true)
    @cursor_max = calculate_width(@line)
    @cursor = 0
  end
end
別名為: unix_line_discard
vi_list_or_eof(key) 按一下切換來源
# File lib/reline/line_editor.rb, line 2996
        def vi_list_or_eof(key)
  if (not @is_multiline and @line.empty?) or (@is_multiline and @line.empty? and @buffer_of_lines.size == 1)
    @line = nil
    if @buffer_of_lines.size > 1
      scroll_down(@highest_in_all - @first_line_started_from)
    end
    Reline::IOGate.move_cursor_column(0)
    @eof = true
    finish
  else
    ed_newline(key)
  end
end
vi_next_big_word(key, arg: 1) 按一下切換來源
# File lib/reline/line_editor.rb, line 2861
        def vi_next_big_word(key, arg: 1)
  if @line.bytesize > @byte_pointer
    byte_size, width = Reline::Unicode.vi_big_forward_word(@line, @byte_pointer)
    @byte_pointer += byte_size
    @cursor += width
  end
  arg -= 1
  vi_next_big_word(key, arg: arg) if arg > 0
end
vi_next_char(key, arg: 1, inclusive: false) 按一下切換來源
# File lib/reline/line_editor.rb, line 3160
        def vi_next_char(key, arg: 1, inclusive: false)
  @waiting_proc = ->(key_for_proc) { search_next_char(key_for_proc, arg, inclusive: inclusive) }
end
vi_next_word(key, arg: 1) 按一下切換來源
# File lib/reline/line_editor.rb, line 2822
        def vi_next_word(key, arg: 1)
  if @line.bytesize > @byte_pointer
    byte_size, width = Reline::Unicode.vi_forward_word(@line, @byte_pointer, @drop_terminate_spaces)
    @byte_pointer += byte_size
    @cursor += width
  end
  arg -= 1
  vi_next_word(key, arg: arg) if arg > 0
end
vi_paste_next(key, arg: 1) 按一下切換來源
# File lib/reline/line_editor.rb, line 3088
        def vi_paste_next(key, arg: 1)
  if @vi_clipboard.size > 0
    byte_size = Reline::Unicode.get_next_mbchar_size(@line, @byte_pointer)
    @line = byteinsert(@line, @byte_pointer + byte_size, @vi_clipboard)
    @cursor_max += calculate_width(@vi_clipboard)
    @cursor += calculate_width(@vi_clipboard)
    @byte_pointer += @vi_clipboard.bytesize
  end
  arg -= 1
  vi_paste_next(key, arg: arg) if arg > 0
end
vi_paste_prev(key, arg: 1) 按一下切換來源
# File lib/reline/line_editor.rb, line 3076
        def vi_paste_prev(key, arg: 1)
  if @vi_clipboard.size > 0
    @line = byteinsert(@line, @byte_pointer, @vi_clipboard)
    @cursor_max += calculate_width(@vi_clipboard)
    cursor_point = @vi_clipboard.grapheme_clusters[0..-2].join
    @cursor += calculate_width(cursor_point)
    @byte_pointer += cursor_point.bytesize
  end
  arg -= 1
  vi_paste_prev(key, arg: arg) if arg > 0
end
vi_prev_big_word(key, arg: 1) 按一下切換來源
# File lib/reline/line_editor.rb, line 2871
        def vi_prev_big_word(key, arg: 1)
  if @byte_pointer > 0
    byte_size, width = Reline::Unicode.vi_big_backward_word(@line, @byte_pointer)
    @byte_pointer -= byte_size
    @cursor -= width
  end
  arg -= 1
  vi_prev_big_word(key, arg: arg) if arg > 0
end
vi_prev_char(key, arg: 1) 按一下切換來源
# File lib/reline/line_editor.rb, line 3217
        def vi_prev_char(key, arg: 1)
  @waiting_proc = ->(key_for_proc) { search_prev_char(key_for_proc, arg) }
end
vi_prev_word(key, arg: 1) 按一下切換來源
# File lib/reline/line_editor.rb, line 2832
        def vi_prev_word(key, arg: 1)
  if @byte_pointer > 0
    byte_size, width = Reline::Unicode.vi_backward_word(@line, @byte_pointer)
    @byte_pointer -= byte_size
    @cursor -= width
  end
  arg -= 1
  vi_prev_word(key, arg: arg) if arg > 0
end
vi_replace_char(key, arg: 1) 按一下切換來源
# File lib/reline/line_editor.rb, line 3132
        def vi_replace_char(key, arg: 1)
  @waiting_proc = ->(k) {
    if arg == 1
      byte_size = Reline::Unicode.get_next_mbchar_size(@line, @byte_pointer)
      before = @line.byteslice(0, @byte_pointer)
      remaining_point = @byte_pointer + byte_size
      after = @line.byteslice(remaining_point, @line.bytesize - remaining_point)
      @line = before + k.chr + after
      @cursor_max = calculate_width(@line)
      @waiting_proc = nil
    elsif arg > 1
      byte_size = 0
      arg.times do
        byte_size += Reline::Unicode.get_next_mbchar_size(@line, @byte_pointer + byte_size)
      end
      before = @line.byteslice(0, @byte_pointer)
      remaining_point = @byte_pointer + byte_size
      after = @line.byteslice(remaining_point, @line.bytesize - remaining_point)
      replaced = k.chr * arg
      @line = before + replaced + after
      @byte_pointer += replaced.bytesize
      @cursor += calculate_width(replaced)
      @cursor_max = calculate_width(@line)
      @waiting_proc = nil
    end
  }
end
vi_search_next(key) 按一下切換來源
# File lib/reline/line_editor.rb, line 2284
        def vi_search_next(key)
  incremental_search_history(key)
end
別名為: forward_search_history
vi_search_prev(key) 按一下切換來源
# File lib/reline/line_editor.rb, line 2279
        def vi_search_prev(key)
  incremental_search_history(key)
end
vi_to_column(key, arg: 0) 按一下以切換來源
# File lib/reline/line_editor.rb, line 3117
        def vi_to_column(key, arg: 0)
  @byte_pointer, @cursor = @line.grapheme_clusters.inject([0, 0]) { |total, gc|
    # total has [byte_size, cursor]
    mbchar_width = Reline::Unicode.get_mbchar_width(gc)
    if (total.last + mbchar_width) >= arg
      break total
    elsif (total.last + mbchar_width) >= @cursor_max
      break total
    else
      total = [total.first + gc.bytesize, total.last + mbchar_width]
      total
    end
  }
end
vi_to_history_line(key) 按一下以切換來源
# File lib/reline/line_editor.rb, line 3031
        def vi_to_history_line(key)
  if Reline::HISTORY.empty?
    return
  end
  if @history_pointer.nil?
    @history_pointer = 0
    @line_backup_in_history = @line
    @line = Reline::HISTORY[@history_pointer]
    @cursor_max = calculate_width(@line)
    @cursor = 0
    @byte_pointer = 0
  elsif @history_pointer.zero?
    return
  else
    Reline::HISTORY[@history_pointer] = @line
    @history_pointer = 0
    @line = Reline::HISTORY[@history_pointer]
    @cursor_max = calculate_width(@line)
    @cursor = 0
    @byte_pointer = 0
  end
end
vi_to_next_char(key, arg: 1, inclusive: false) 按一下以切換來源
# File lib/reline/line_editor.rb, line 3164
        def vi_to_next_char(key, arg: 1, inclusive: false)
  @waiting_proc = ->(key_for_proc) { search_next_char(key_for_proc, arg, need_prev_char: true, inclusive: inclusive) }
end
vi_to_prev_char(key, arg: 1) 按一下以切換來源
# File lib/reline/line_editor.rb, line 3221
        def vi_to_prev_char(key, arg: 1)
  @waiting_proc = ->(key_for_proc) { search_prev_char(key_for_proc, arg, true) }
end
vi_yank(key, arg: 1) 按一下以切換來源
# File lib/reline/line_editor.rb, line 2984
        def vi_yank(key, arg: 1)
  @waiting_operator_proc = proc { |cursor_diff, byte_pointer_diff|
    if byte_pointer_diff > 0
      cut = @line.byteslice(@byte_pointer, byte_pointer_diff)
    elsif byte_pointer_diff < 0
      cut = @line.byteslice(@byte_pointer + byte_pointer_diff, -byte_pointer_diff)
    end
    copy_for_vi(cut)
  }
  @waiting_operator_vi_arg = arg
end
vi_zero(key) 按一下以切換來源
# File lib/reline/line_editor.rb, line 2946
        def vi_zero(key)
  @byte_pointer = 0
  @cursor = 0
end