diff options
Diffstat (limited to 'lib/reline/ansi.rb')
| -rw-r--r-- | lib/reline/ansi.rb | 371 |
1 files changed, 0 insertions, 371 deletions
diff --git a/lib/reline/ansi.rb b/lib/reline/ansi.rb deleted file mode 100644 index a3719f502c..0000000000 --- a/lib/reline/ansi.rb +++ /dev/null @@ -1,371 +0,0 @@ -require 'io/console' -require 'io/wait' -require_relative 'terminfo' - -class Reline::ANSI - RESET_COLOR = "\e[0m" - - CAPNAME_KEY_BINDINGS = { - 'khome' => :ed_move_to_beg, - 'kend' => :ed_move_to_end, - 'kdch1' => :key_delete, - 'kpp' => :ed_search_prev_history, - 'knp' => :ed_search_next_history, - 'kcuu1' => :ed_prev_history, - 'kcud1' => :ed_next_history, - 'kcuf1' => :ed_next_char, - 'kcub1' => :ed_prev_char, - } - - ANSI_CURSOR_KEY_BINDINGS = { - # Up - 'A' => [:ed_prev_history, {}], - # Down - 'B' => [:ed_next_history, {}], - # Right - 'C' => [:ed_next_char, { ctrl: :em_next_word, meta: :em_next_word }], - # Left - 'D' => [:ed_prev_char, { ctrl: :ed_prev_word, meta: :ed_prev_word }], - # End - 'F' => [:ed_move_to_end, {}], - # Home - 'H' => [:ed_move_to_beg, {}], - } - - if Reline::Terminfo.enabled? - Reline::Terminfo.setupterm(0, 2) - end - - def self.encoding - Encoding.default_external - end - - def self.win? - false - end - - def self.set_default_key_bindings(config, allow_terminfo: true) - set_default_key_bindings_ansi_cursor(config) - if allow_terminfo && Reline::Terminfo.enabled? - set_default_key_bindings_terminfo(config) - else - set_default_key_bindings_comprehensive_list(config) - end - { - [27, 91, 90] => :completion_journey_up, # S-Tab - }.each_pair do |key, func| - config.add_default_key_binding_by_keymap(:emacs, key, func) - config.add_default_key_binding_by_keymap(:vi_insert, key, func) - end - { - # default bindings - [27, 32] => :em_set_mark, # M-<space> - [24, 24] => :em_exchange_mark, # C-x C-x - }.each_pair do |key, func| - config.add_default_key_binding_by_keymap(:emacs, key, func) - end - end - - def self.set_default_key_bindings_ansi_cursor(config) - ANSI_CURSOR_KEY_BINDINGS.each do |char, (default_func, modifiers)| - bindings = [["\e[#{char}", default_func]] # CSI + char - if modifiers[:ctrl] - # CSI + ctrl_key_modifier + char - bindings << ["\e[1;5#{char}", modifiers[:ctrl]] - end - if modifiers[:meta] - # CSI + meta_key_modifier + char - bindings << ["\e[1;3#{char}", modifiers[:meta]] - # Meta(ESC) + CSI + char - bindings << ["\e\e[#{char}", modifiers[:meta]] - end - bindings.each do |sequence, func| - key = sequence.bytes - config.add_default_key_binding_by_keymap(:emacs, key, func) - config.add_default_key_binding_by_keymap(:vi_insert, key, func) - config.add_default_key_binding_by_keymap(:vi_command, key, func) - end - end - end - - def self.set_default_key_bindings_terminfo(config) - key_bindings = CAPNAME_KEY_BINDINGS.map do |capname, key_binding| - begin - key_code = Reline::Terminfo.tigetstr(capname) - [ key_code.bytes, key_binding ] - rescue Reline::Terminfo::TerminfoError - # capname is undefined - end - end.compact.to_h - - key_bindings.each_pair do |key, func| - config.add_default_key_binding_by_keymap(:emacs, key, func) - config.add_default_key_binding_by_keymap(:vi_insert, key, func) - config.add_default_key_binding_by_keymap(:vi_command, key, func) - end - end - - def self.set_default_key_bindings_comprehensive_list(config) - { - # Console (80x25) - [27, 91, 49, 126] => :ed_move_to_beg, # Home - [27, 91, 52, 126] => :ed_move_to_end, # End - [27, 91, 51, 126] => :key_delete, # Del - - # KDE - # Del is 0x08 - [27, 71, 65] => :ed_prev_history, # ↑ - [27, 71, 66] => :ed_next_history, # ↓ - [27, 71, 67] => :ed_next_char, # → - [27, 71, 68] => :ed_prev_char, # ← - - # urxvt / exoterm - [27, 91, 55, 126] => :ed_move_to_beg, # Home - [27, 91, 56, 126] => :ed_move_to_end, # End - - # GNOME - [27, 79, 72] => :ed_move_to_beg, # Home - [27, 79, 70] => :ed_move_to_end, # End - # Del is 0x08 - # Arrow keys are the same of KDE - - [27, 79, 65] => :ed_prev_history, # ↑ - [27, 79, 66] => :ed_next_history, # ↓ - [27, 79, 67] => :ed_next_char, # → - [27, 79, 68] => :ed_prev_char, # ← - }.each_pair do |key, func| - config.add_default_key_binding_by_keymap(:emacs, key, func) - config.add_default_key_binding_by_keymap(:vi_insert, key, func) - config.add_default_key_binding_by_keymap(:vi_command, key, func) - end - end - - @@input = STDIN - def self.input=(val) - @@input = val - end - - @@output = STDOUT - def self.output=(val) - @@output = val - end - - def self.with_raw_input - if @@input.tty? - @@input.raw(intr: true) { yield } - else - yield - end - end - - @@buf = [] - def self.inner_getc(timeout_second) - unless @@buf.empty? - return @@buf.shift - end - until @@input.wait_readable(0.01) - timeout_second -= 0.01 - return nil if timeout_second <= 0 - - Reline.core.line_editor.handle_signal - end - c = @@input.getbyte - (c == 0x16 && @@input.raw(min: 0, time: 0, &:getbyte)) || c - rescue Errno::EIO - # Maybe the I/O has been closed. - nil - rescue Errno::ENOTTY - nil - end - - @@in_bracketed_paste_mode = false - START_BRACKETED_PASTE = String.new("\e[200~,", encoding: Encoding::ASCII_8BIT) - END_BRACKETED_PASTE = String.new("\e[200~.", encoding: Encoding::ASCII_8BIT) - def self.getc_with_bracketed_paste(timeout_second) - buffer = String.new(encoding: Encoding::ASCII_8BIT) - buffer << inner_getc(timeout_second) - while START_BRACKETED_PASTE.start_with?(buffer) or END_BRACKETED_PASTE.start_with?(buffer) do - if START_BRACKETED_PASTE == buffer - @@in_bracketed_paste_mode = true - return inner_getc(timeout_second) - elsif END_BRACKETED_PASTE == buffer - @@in_bracketed_paste_mode = false - ungetc(-1) - return inner_getc(timeout_second) - end - succ_c = inner_getc(Reline.core.config.keyseq_timeout) - - if succ_c - buffer << succ_c - else - break - end - end - buffer.bytes.reverse_each do |ch| - ungetc ch - end - inner_getc(timeout_second) - end - - # if the usage expects to wait indefinitely, use Float::INFINITY for timeout_second - def self.getc(timeout_second) - if Reline.core.config.enable_bracketed_paste - getc_with_bracketed_paste(timeout_second) - else - inner_getc(timeout_second) - end - end - - def self.in_pasting? - @@in_bracketed_paste_mode or (not empty_buffer?) - end - - def self.empty_buffer? - unless @@buf.empty? - return false - end - !@@input.wait_readable(0) - end - - def self.ungetc(c) - @@buf.unshift(c) - end - - def self.retrieve_keybuffer - begin - return unless @@input.wait_readable(0.001) - str = @@input.read_nonblock(1024) - str.bytes.each do |c| - @@buf.push(c) - end - rescue EOFError - end - end - - def self.get_screen_size - s = @@input.winsize - return s if s[0] > 0 && s[1] > 0 - s = [ENV["LINES"].to_i, ENV["COLUMNS"].to_i] - return s if s[0] > 0 && s[1] > 0 - [24, 80] - rescue Errno::ENOTTY - [24, 80] - end - - def self.set_screen_size(rows, columns) - @@input.winsize = [rows, columns] - self - rescue Errno::ENOTTY - self - end - - def self.cursor_pos - begin - res = +'' - m = nil - @@input.raw do |stdin| - @@output << "\e[6n" - @@output.flush - loop do - c = stdin.getc - next if c.nil? - res << c - m = res.match(/\e\[(?<row>\d+);(?<column>\d+)R/) - break if m - end - (m.pre_match + m.post_match).chars.reverse_each do |ch| - stdin.ungetc ch - end - end - column = m[:column].to_i - 1 - row = m[:row].to_i - 1 - rescue Errno::ENOTTY - begin - buf = @@output.pread(@@output.pos, 0) - row = buf.count("\n") - column = buf.rindex("\n") ? (buf.size - buf.rindex("\n")) - 1 : 0 - rescue Errno::ESPIPE - # Just returns column 1 for ambiguous width because this I/O is not - # tty and can't seek. - row = 0 - column = 1 - end - end - Reline::CursorPos.new(column, row) - end - - def self.move_cursor_column(x) - @@output.write "\e[#{x + 1}G" - end - - def self.move_cursor_up(x) - if x > 0 - @@output.write "\e[#{x}A" - elsif x < 0 - move_cursor_down(-x) - end - end - - def self.move_cursor_down(x) - if x > 0 - @@output.write "\e[#{x}B" - elsif x < 0 - move_cursor_up(-x) - end - end - - def self.hide_cursor - if Reline::Terminfo.enabled? && Reline::Terminfo.term_supported? - begin - @@output.write Reline::Terminfo.tigetstr('civis') - rescue Reline::Terminfo::TerminfoError - # civis is undefined - end - else - # ignored - end - end - - def self.show_cursor - if Reline::Terminfo.enabled? && Reline::Terminfo.term_supported? - begin - @@output.write Reline::Terminfo.tigetstr('cnorm') - rescue Reline::Terminfo::TerminfoError - # cnorm is undefined - end - else - # ignored - end - end - - def self.erase_after_cursor - @@output.write "\e[K" - end - - # This only works when the cursor is at the bottom of the scroll range - # For more details, see https://github.com/ruby/reline/pull/577#issuecomment-1646679623 - def self.scroll_down(x) - return if x.zero? - # We use `\n` instead of CSI + S because CSI + S would cause https://github.com/ruby/reline/issues/576 - @@output.write "\n" * x - end - - def self.clear_screen - @@output.write "\e[2J" - @@output.write "\e[1;1H" - end - - @@old_winch_handler = nil - def self.set_winch_handler(&handler) - @@old_winch_handler = Signal.trap('WINCH', &handler) - end - - def self.prep - retrieve_keybuffer - nil - end - - def self.deprep(otio) - Signal.trap('WINCH', @@old_winch_handler) if @@old_winch_handler - end -end |