comment -*- mode: text; tab-width:2; indent-tabs-mode:nil -*-

mlterm configuration protocol
version 20230401

* Protocol
  exec          = "\x1b]5379;" <command> "\x07"
  set           = "\x1b]5379" ( ";" ( "/dev/..." ":" ) <key> "=" <value> )* "\x07"
  get(pty)      = "\x1b]5380;" (<challenge> ";") ( "/dev/..." ":" ) <key> "\x07"
  get(GUI menu) = "\x1b]5381;" ( "/dev/..." ":" ) <key> "\x07"
  set&save      = "\x1b]5383;" <challenge> ( ";" ( "/dev/..." ":" ) <key> "=" <value> )* "\x07"

  set font      = "\x1b]5379;" <font filename> ":" <key> "=" <value> "\x07"
  get(pty)      = "\x1b]5380;" (<challenge> ";") <font filename> ":" <key> "\x07"
  get(GUI menu)	= "\x1b]5381;" <font filename> ":" <key> "\x07"
  set&save      = "\x1b]5383;" <challenge> ";" <font filename> ":" <key> "=" <value> "\x07"

  set color     = "\x1b]5379;color:" <key> "=" <value> "\x07"
  get(pty)      = "\x1b]5380;" (<challenge> ";color:") <key> "\x07"
  get(GUI menu)	= "\x1b]5381;color:" <key> "\x07"
  set&save      = "\x1b]5383;" <challenge> ";color:" <key> "=" <value> "\x07"

  return value  = "#" <key> "=" <value> "\x0a" | "#error\x0a" | "#forbidden\x0a"

  exec command  = autoscroll <count> | close_pty (<dev>) | close_screen | full_reset |
                  gen_proto_challenge | hresize_screen (+<rows>|-<rows>|<rows>|<percent>%) |
                  hsplit_screen (<rows>|<percent>%) |
                  mlclient "<prefix options>" "<options>" |
                  mlclientx "<prefix options>" "<options>" | mlconfig | next_pty | next_screen |
                  open_pty | open_screen | paste (clipboard) (*) | prev_pty | prev_screen |
                  scp "(local:|remote:)<src file name>" "(local:|remote:)<dst directory name>"
                      "(<encoding name>)" |
                  search_next <pattern> | search_prev <pattern> | select_pty <dev> |
                  set_shortcut <key>=<operation> (*) |
                  snapshot ("<file name>") ("<encoding name>") | update_all |
                  vresize_screen (+<columns>|-<columns>|<columns>|<percent>%) |
                  vsplit_screen (<columns>|<percent>%) | zmodem_start

  set key       = alpha | allow_osc52 (*) | allow_scp (*) | auto_detect_encodings | auto_restart |
                  baseline_offset | bd_color | bel_mode | bg_color | bidi_mode |
                  bidi_separators | bl_color | borderless | box_drawing_font | brightness |
                  click_interval | co_color | col_size_of_width_a | console_encoding |
                  console_sixel_colors | contrast | cursor_bg_color | cursor_fg_color |
                  emoji_path | encoding | exit_backscroll_by_pty | fade_ratio | fg_color |
                  fontsize | format_other_keys | gamma | geometry | hide_underline | icon_path |
                  input_method | it_color | letter_space | line_space | local_echo_wait |
                  locale | logging_msg | logging_vt_seq | logsize | mod_meta_key |
                  mod_meta_mode | not_use_unicode_font | only_use_unicode_font |
                  ot_features | ot_script | receive_string_via_ucs |
                  regard_uri_as_word | rv_color | sb_bg_color | sb_fg_color | screen_width_ratio |
                  scrollbar_mode | scrollbar_view_name | send_file static_backscroll_mode |
                  tabsize | trim_trailing_newline_in_pasting | type_engine | ul_color |
                  underline_offset | unicode_full_width_areas | unicode_half_width_areas |
                  unicode_noconv_areas | use_alt_buffer | use_ansi_colors | use_anti_alias |
                  use_auto_detect | use_bold_font | use_combining | use_ctl |
                  use_dynamic_comb | use_italic_font | use_local_echo | use_multi_column_char |
                  use_ot_layout | use_transbg | use_urgent_bell | use_variable_column_width |
                  use_vertical_cursor | vertical_mode | vt_color_mode | vt_seq_format |
                  wall_picture | word_separators

  get key       = alpha | allow_osc52 | allow_scp | auto_detect_encodings | baseline_offset |
                  bd_color | bel_mode | bg_color | bidi_mode | bidi_separators | bl_color |
                  borderless | box_drawing_font | brightness | click_interval | co_color |
                  col_size_of_width_a | cols | contrast | cursor_bg_color | cursor_fg_color |
                  depth | emoji_path | encoding | fade_ratio | fg_color | fontconfig | fontsize |
                  format_other_keys | gamma | gui | hide_underline | icon_path |
                  input_method | is_auto_encoding | it_color | letter_space | line_space |
                  local_echo_wait | locale | logging_vt_seq | logsize | mod_meta_key |
                  mod_meta_mode | not_use_unicode_font |
                  only_use_unicode_font | ot_features | ot_script | pty_list | pty_name | pwd |
                  receive_directory | receive_string_via_ucs | regard_uri_as_word | rows |
                  rv_color | sb_bg_color | sb_fg_color | screen_width_ratio | scrollbar_mode |
                  scrollbar_view_name | send_file | static_backscroll_mode | tabsize |
                  trim_trailing_newline_in_pasting | type_engine | ul_color | underline_offset |
                  unicode_full_width_areas | unicode_half_width_areas | unicode_noconv_areas |
                  use_aafont | use_alt_buffer | use_ansi_colors | use_anti_alias |
                  use_auto_detect | use_bold_font | use_combining | use_ctl |
                  use_dynamic_comb | use_italic_font | use_local_echo | use_multi_column_char |
                  use_ot_layout | use_transbg | use_variable_column_width | use_vertical_cursor |
                  vertical_mode | vt_seq_format | wall_picture | word_separators

                  (*): Works as "proto:xxxx" shortcut in ~/.mlterm/key alone.

  value         = <values for each key>
  challenge     = <string in ~/.mlterm/challenge>

  font filename = font | aafont | vfont | tfont | vaafont | taafont
  font key      = see man/mlterm.1 or "USASCII"
  font value    = see man/mlterm.1
  fontsize      = <fontsize digit>

  color key     = see man/mlterm.1
  color value   = see man/mlterm.1

* Values for each key
  alpha = <any ASCII decimal digit>
  allow_osc52 = true | false | switch
  allow_scp = true | false | switch
  auto_restart = true | false | switch | <restart command>
  auto_detect_encodings = (<encoding name>,)*
  baseline_offset = <any ASCII decimal digit>
  bidi_mode = normal | left | right | switch
  bidi_separators = <any ASCII sign>*
  bd_color = <color name> | <color rgb>
  bl_color = <color name> | <color rgb>
  bel_mode = none | sound | visual
  bg_color = <color name> | <color rgb>
  box_drawing_font = unicode | decsp | noconv
  brightness = <any ASCII decimal digit>
  click_interval = <any ASCII decimal digit>
  cols = <any ASCII decimal digit>
  col_size_of_width_a = 1 | 2 | switch
  contrast = <any ASCII decimal digit>
  co_colors = <color name> | <color rgb>
  console_encoding = <encoding name> | auto
  console_sixel_colors = 16 | 256 | full
  cursor_bg_color = <color name> | <color rgb>
  cursor_fg_color = <color name> | <color rgb>
  depth = 8 | 16 | 24 | 32 (xlib only)
  emoji_path = <directory> | <open type font file>
  encoding = <encoding name> | auto
  fade_ratio = <any ASCII decimal digit>
  fg_color = <color name> | <color rgb>
  format_other_keys = true | false
  fontsize = <any ASCII decimal digit> | larger | smaller
  gamma = <any ASCII decimal digit>
  hide_underline = true | false | switch
  icon_path = <file path>
  input_method = <input method> ":" <input method specific options> ...
  it_color = <color name> | <color rgb>
  line_space = <any ASCII decimal digit>
  locale = <locale name>
  local_echo_wait = <any ASCII decimal digit>
  logsize = <any ASCII decimal digit>
  mod_meta_key = none | mod1 | mod2 | mod3 | mod4 | meta | alt | super | hyper
  mod_meta_mode = none | esc | 8bit
  not_use_unicode_font = true | false | switch
  only_use_unicode_font = true | false | switch
  ot_script = <script name>
  ot_features = (<feature>,)*
  pty_list = (<pty dev>:<active flag>;)*
  pty_name = <pty dev> | <pty title>
  pwd = <current working directory>
  receive_directory = <directory path>
  receive_string_via_ucs = true | false | switch
  regard_uri_as_word = true | false | switch
  rows = <any ASCII decimal digit>
  rv_color = <color name> | <color rgb>
  send_file = <file path>
  sb_bg_color = <color name> | <color rgb>
  sb_fg_color = <color name> | <color rgb>
  screen_width_ratio = <any ASCII decimal digit>
  scrollbar_mode = none | left | right
  scrollbar_view_name = <name>
  stataic_backscroll_mode = true | false | switch
  tabsize = <any ASCII decimal digit>
  trim_trailing_newline_in_pasting = true | false | switch
  type_engine = xcore | xft | cairo
  ul_color = <color name> | <color rgb>
  underline_offset = <any ASCII decimal digit>
  unicode_noconv_areas = (U+XXXX-XXXX,)*
  unicode_full_width_areas = (U+XXXX-XXXX,)*
  unicode_half_width_areas = (U+XXXX-XXXX,)*
  use_aafont = true | false
  use_alt_buffer = true | false | switch
  use_ansi_colors = true | false | switch
  use_anti_alias = true | false | switch
  use_auto_detect = true | false | switch
  use_bold_font = true | false | switch
  use_ctl = true | false | switch
  use_combining = true | false | switch
  use_italic_font = true | false | switch
  use_dynamic_comb = true | false | switch
  use_local_echo = true | false | switch
  use_multi_column_char = true | false | switch
  use_ot_layout = true | false | switch
  use_transbg = true | false | switch
  use_variable_column_width = true | false | switch
  use_vertical_cursor = true | false | switch
  vertical_mode = none | cjk | mongol
  vt_color_mode = 256 | high | true
  vt_seq_format = raw | ttyrec
  wall_picture = <file path>
  logging_vt_seq = true | false | switch
  logging_msg = true | false | switch

* Note
  o Encoding names are regularized , that is , `-' , `_' are removed , and only
    upper case letters are used. But encoding names which are not regularized
    can be used in ESC ] 5379 ; encoding= <value> BEL sequence by secondary
    effect.
  o Adjusting and operation arguments of  ESC ] 20 ; pt BEL sequence are not
    used for now.
  o It is configuration programs themselves that search ~/.mlterm/xim and
    ${SYSCONFDIR}/mlterm/xim files for pairs of xim name and its preferable
    locale.
  o If /dev/... is specified with 'pty_name' key, <pty title> is returned.
    Otherwise, <pty dev> returned.
  o /dev/... in 5379,5382,5383 proto is ignored for now.
  o If "snapshot" command issued without <file name> or with no value,
    screen snapshot is output to ~/.mlterm/[tty].snp.
  o "mlclient" command accepts arguments like mlclient comman except '='.
    mlclient or mlclientx executables of tool/mlclient is recommended to use.
    e.g. "\x1b]5379;mlclient --km utf8\x07"
  o "mlclientx" command is similar to "mlclient" one except for not creating
    any new window.
  o "mlclient" and "mlclientx" commands doesn't accept "-e", "--initstr",
    "--osc52" and "--shortcut" options, while they are available in ~/.mlterm/key
    like Control+F1="proto:mlclient -osc52".
  o "selected_text(:encoding)" command returns selected text in which NL is
    replaced to CR.
  o "paste" command works like INSERT_SELECTION, and "paste clipboard" command
    works like INSERT_CLIPBOARD.
  o "\x1b]5379;fontconfig\x07" shows current font settings.
  o See doc/en/README.transfer for "scp" command.

* Note about color configuration
  If you specify "" as <value>, previous setting of <key> color is cleared.

* Compatibility with other terminals
  set fg color     = "\x1b" "]" "10" ";" <color name> "\x07"
  set bg color     = "\x1b" "]" "11" ";" <color name> "\x07"
  set cursor color = "\x1b" "]" "12" ";" <color name> "\x07"
  set picture      = "\x1b" "]" "20" ";" <path> "[" ";" <adjusting> "]" "[" ":" <operation> "]" "\x07"
