Patch 9.0.0955
Problem:    Libvterm does not support the XTQMODKEYS request.
Solution:   Implement the XTQMODKEYS request and response.  Update the keycode
            check results.
Files:      src/libvterm/src/state.c, src/testdir/keycode_check.vim,
            src/testdir/keycode_check.json


*** ../vim-9.0.0954/src/libvterm/src/state.c    2022-11-23 20:19:17.125682463 
+0000
--- src/libvterm/src/state.c    2022-11-27 11:05:53.426930794 +0000
***************
*** 1400,1406 ****
      vterm_state_setpen(state, args, argcount);
      break;
  
!   case LEADER('?', 0x6d): // DECSGR
      /* No actual DEC terminal recognised these, but some printers did. These
       * are alternative ways to request subscript/superscript/off
       */
--- 1400,1414 ----
      vterm_state_setpen(state, args, argcount);
      break;
  
!   case LEADER('?', 0x6d): // DECSGR and XTQMODKEYS
!     // CSI ? 4 m  XTQMODKEYS: request modifyOtherKeys level
!     if (argcount == 1 && CSI_ARG(args[0]) == 4)
!     {
!       vterm_push_output_sprintf_ctrl(state->vt, C1_CSI, ">4;%dm",
!                                       state->mode.modify_other_keys ? 2 : 0);
!       break;
!     }
! 
      /* No actual DEC terminal recognised these, but some printers did. These
       * are alternative ways to request subscript/superscript/off
       */
***************
*** 1424,1440 ****
      break;
  
    case LEADER('>', 0x6d): // CSI > 4 ; Pv m   xterm resource modifyOtherKeys
!     if (argcount == 2 && args[0] == 4)
      {
        // can't have both modify_other_keys and kitty_keyboard
        state->mode.kitty_keyboard = 0;
  
!       state->mode.modify_other_keys = args[1] == 2;
      }
      break;
  
    case LEADER('>', 0x75): // CSI > 1 u  enable kitty keyboard protocol
!     if (argcount == 1 && args[0] == 1)
      {
        // can't have both modify_other_keys and kitty_keyboard
        state->mode.modify_other_keys = 0;
--- 1432,1448 ----
      break;
  
    case LEADER('>', 0x6d): // CSI > 4 ; Pv m   xterm resource modifyOtherKeys
!     if (argcount == 2 && CSI_ARG(args[0]) == 4)
      {
        // can't have both modify_other_keys and kitty_keyboard
        state->mode.kitty_keyboard = 0;
  
!       state->mode.modify_other_keys = CSI_ARG(args[1]) == 2;
      }
      break;
  
    case LEADER('>', 0x75): // CSI > 1 u  enable kitty keyboard protocol
!     if (argcount == 1 && CSI_ARG(args[0]) == 1)
      {
        // can't have both modify_other_keys and kitty_keyboard
        state->mode.modify_other_keys = 0;
*** ../vim-9.0.0954/src/testdir/keycode_check.vim       2022-11-26 
19:16:44.186717893 +0000
--- src/testdir/keycode_check.vim       2022-11-27 11:16:57.745976886 +0000
***************
*** 134,140 ****
    endif
    sort(terms)
  
!   var items = ['protocol', 'version', 'status', 'modkeys']
              + key_entries->copy()->map((_, v) => v[1])
  
    # For each terminal compute the needed width, add two.
--- 134,140 ----
    endif
    sort(terms)
  
!   var items = ['protocol', 'version', 'kitty', 'modkeys']
              + key_entries->copy()->map((_, v) => v[1])
  
    # For each terminal compute the needed width, add two.
***************
*** 194,208 ****
                        ])
    echo "\n"
    &t_TE = "\<Esc>[>4;m"
!   var proto_name = 'none'
    if proto == 1
!     &t_TI = ""
    elseif proto == 2
!     # Enable modifyOtherKeys level 2.  Request the XTQMODKEYS value.
      &t_TI = "\<Esc>[>4;2m" .. "\<Esc>[?4m"
      proto_name = 'mok2'
    elseif proto == 3
!     # Enable Kitty keyboard protocol and request the status
      &t_TI = "\<Esc>[>1u" .. "\<Esc>[?u"
      proto_name = 'kitty'
    else
--- 194,210 ----
                        ])
    echo "\n"
    &t_TE = "\<Esc>[>4;m"
!   var proto_name = 'unknown'
    if proto == 1
!     # Request the XTQMODKEYS value and request the kitty keyboard protocol 
status.
!     &t_TI = "\<Esc>[?4m" .. "\<Esc>[?u"
!     proto_name = 'none'
    elseif proto == 2
!     # Enable modifyOtherKeys level 2 and request the XTQMODKEYS value.
      &t_TI = "\<Esc>[>4;2m" .. "\<Esc>[?4m"
      proto_name = 'mok2'
    elseif proto == 3
!     # Enable Kitty keyboard protocol and request the status.
      &t_TI = "\<Esc>[>1u" .. "\<Esc>[?u"
      proto_name = 'kitty'
    else
***************
*** 262,268 ****
    endif
    keycodes[name]['protocol'] = proto_name
    keycodes[name]['version'] = ''
!   keycodes[name]['status'] = ''
    keycodes[name]['modkeys'] = ''
  
    # Check the log file for a status and the version response
--- 264,270 ----
    endif
    keycodes[name]['protocol'] = proto_name
    keycodes[name]['version'] = ''
!   keycodes[name]['kitty'] = ''
    keycodes[name]['modkeys'] = ''
  
    # Check the log file for a status and the version response
***************
*** 277,284 ****
        # Check for the XTQMODKEYS response.
        if code =~ modkeys_pattern
        var modkeys = substitute(code, '.*\(' .. modkeys_pattern .. '\).*', 
'\1', '')
!       # Get the level out of the response
!       modkeys = substitute(modkeys, '.*4;\(\d\)m', '\1', '')
  
        if keycodes[name]['modkeys'] != ''
          echomsg 'Another modkeys found after ' .. keycodes[name]['modkeys']
--- 279,287 ----
        # Check for the XTQMODKEYS response.
        if code =~ modkeys_pattern
        var modkeys = substitute(code, '.*\(' .. modkeys_pattern .. '\).*', 
'\1', '')
!       # We could get the level out of the response, but showing the response
!       # itself provides more information.
!       # modkeys = substitute(modkeys, '.*4;\(\d\)m', '\1', '')
  
        if keycodes[name]['modkeys'] != ''
          echomsg 'Another modkeys found after ' .. keycodes[name]['modkeys']
***************
*** 292,301 ****
        # use the response itself as the status
        status = Literal2hex(status)
  
!       if keycodes[name]['status'] != ''
!         echomsg 'Another status found after ' .. keycodes[name]['status']
        endif
!       keycodes[name]['status'] = status
        endif
  
        if code =~ version_pattern
--- 295,304 ----
        # use the response itself as the status
        status = Literal2hex(status)
  
!       if keycodes[name]['kitty'] != ''
!         echomsg 'Another status found after ' .. keycodes[name]['kitty']
        endif
!       keycodes[name]['kitty'] = status
        endif
  
        if code =~ version_pattern
*** ../vim-9.0.0954/src/testdir/keycode_check.json      2022-11-26 
19:16:44.186717893 +0000
--- src/testdir/keycode_check.json      2022-11-27 11:30:02.637228419 +0000
***************
*** 1 ****
! 
{"31kitty":{"Space":"20","version":"1b5b3e313b343030303b323163","C-Tab":"","A-Esc":"1b5b32373b313175","C-Space":"1b5b33323b3575","status":"1b5b3f3175","S-C-I":"1b5b3130353b3675","C-I":"1b5b3130353b3575","S-Tab":"1b5b393b3275","Tab":"09","resource":"","A-Tab":"1b5b393b313175","S-Space":"20","C-Esc":"1b5b32373b3575","protocol":"kitty","A-Space":"1b5b33323b313175","S-Esc":"1b5b32373b3275","Esc":"1b5b323775"},"32libvterm":{"Space":"20","version":"1b5b3e303b3130303b3063","C-Tab":"1b5b393b3575","A-Esc":"1b5b32373b3375","C-Space":"1b5b33323b3575","status":"1b5b3f3175","S-C-I":"1b5b3130353b3675","C-I":"1b5b3130353b3575","S-Tab":"1b5b393b3275","Tab":"09","resource":"","A-Tab":"1b5b393b3375","S-Space":"1b5b33323b3275","C-Esc":"1b5b32373b3575","protocol":"kitty","A-Space":"1b5b33323b3375","S-Esc":"1b5b323775","Esc":"1b5b323775"},"22libvterm":{"Space":"20","version":"1b5b3e303b3130303b3063","C-Tab":"1b5b32373b353b397e","A-Esc":"1b5b32373b333b32377e","C-Space":"1b5b32373b353b33327e","status":""
 
,"S-C-I":"1b5b32373b363b37337e","C-I":"1b5b32373b353b3130357e","S-Tab":"1b5b5a","Tab":"09","resource":"","A-Tab":"1b5b32373b333b397e","S-Space":"1b5b32373b323b33327e","C-Esc":"1b5b32373b353b32377e","protocol":"mok2","A-Space":"1b5b32373b333b33327e","S-Esc":"1b5b32373b323b32377e","Esc":"1b"},"13kitty":{"Space":"20","version":"1b5b3e313b343030303b323163","C-Tab":"","A-Esc":"1b1b","status":"","S-C-I":"1b5b3130353b3675","C-I":"09","S-Tab":"1b5b5a","Tab":"09","resource":"","A-Tab":"1b09","S-Space":"20","C-Esc":"1b","protocol":"none","A-Space":"1b5b33323b313175","S-Esc":"1b","Esc":"1b"},"21xterm":{"Space":"20","modkeys":"2","version":"1b5b3e34313b3337373b3063","C-Tab":"1b5b32373b353b397e","A-Esc":"1b5b32373b333b32377e","C-Space":"1b5b32373b353b33327e","status":"","S-C-I":"1b5b32373b363b37337e","C-I":"1b5b32373b353b3130357e","S-Tab":"1b5b5a","Tab":"09","resource":"=30","A-Tab":"1b5b32373b333b397e","S-Space":"1b5b32373b323b33327e","C-Esc":"1b5b32373b353b32377e","protocol":"mok2","A-Space":"
 
1b5b32373b333b33327e","S-Esc":"1b5b32373b323b32377e","Esc":"1b"},"12libvterm":{"Space":"20","version":"1b5b3e303b3130303b3063","C-Tab":"1b5b393b3575","A-Esc":"9b00","status":"","S-C-I":"1b5b5a","C-I":"09","S-Tab":"1b5b5a","Tab":"09","S-Space":"1b5b33323b3275","A-Tab":"8900","resource":"","C-Esc":"1b5b32373b3575","protocol":"none","A-Space":"a000","S-Esc":"1b","Esc":"1b"},"11xterm":{"Space":"20","version":"1b5b3e34313b3337373b3063","C-Tab":"09","A-Esc":"9b00","status":"","S-C-I":"09","C-I":"09","S-Tab":"1b5b5a","Tab":"09","resource":"","A-Tab":"8900","S-Space":"20","C-Esc":"1b","protocol":"none","A-Space":"a000","S-Esc":"1b","Esc":"1b"}}
--- 1 ----
! 
{"31kitty":{"Space":"20","modkeys":"","version":"1b5b3e313b343030303b323163","C-Tab":"","A-Esc":"1b5b32373b313175","C-Space":"1b5b33323b3575","S-C-I":"1b5b3130353b3675","C-I":"1b5b3130353b3575","S-Tab":"1b5b393b3275","Tab":"09","resource":"","A-Tab":"1b5b393b313175","S-Space":"20","C-Esc":"1b5b32373b3575","kitty":"1b5b3f3175","protocol":"kitty","A-Space":"1b5b33323b313175","S-Esc":"1b5b32373b3275","Esc":"1b5b323775"},"32libvterm":{"Space":"20","modkeys":"","version":"1b5b3e303b3130303b3063","C-Tab":"","A-Esc":"1b5b32373b3375","C-Space":"1b5b33323b3575","S-C-I":"1b5b3130353b3675","C-I":"1b5b3130353b3575","S-Tab":"1b5b393b3275","Tab":"09","resource":"","A-Tab":"1b5b393b3375","S-Space":"20","C-Esc":"1b5b32373b3575","kitty":"1b5b3f3175","protocol":"kitty","A-Space":"1b5b33323b3375","S-Esc":"1b5b32373b3275","Esc":"1b5b323775"},"22libvterm":{"Space":"20","modkeys":"\u001b[>4;2m","version":"1b5b3e303b3130303b3063","C-Tab":"1b5b32373b353b397e","A-Esc":"1b5b32373b333b32377e","C-Space":"1b5b
 
32373b353b33327e","S-C-I":"1b5b32373b363b37337e","C-I":"1b5b32373b353b3130357e","S-Tab":"1b5b5a","Tab":"09","resource":"","A-Tab":"1b5b32373b333b397e","S-Space":"1b5b32373b323b33327e","C-Esc":"1b5b32373b353b32377e","kitty":"","protocol":"mok2","A-Space":"1b5b32373b333b33327e","S-Esc":"1b5b32373b323b32377e","Esc":"1b"},"13kitty":{"Space":"20","modkeys":"","version":"1b5b3e313b343030303b323163","C-Tab":"","A-Esc":"1b1b","S-C-I":"1b5b3130353b3675","C-I":"09","S-Tab":"1b5b5a","Tab":"09","S-Space":"20","A-Tab":"1b09","resource":"","C-Esc":"1b","kitty":"1b5b3f3075","protocol":"none","A-Space":"1b5b33323b313175","S-Esc":"1b","Esc":"1b"},"21xterm":{"Space":"20","modkeys":"\u001b[>4;2m","version":"1b5b3e34313b3337373b3063","C-Tab":"1b5b32373b353b397e","A-Esc":"1b5b32373b333b32377e","C-Space":"1b5b32373b353b33327e","S-C-I":"1b5b32373b363b37337e","C-I":"1b5b32373b353b3130357e","S-Tab":"1b5b5a","Tab":"09","resource":"=30","A-Tab":"1b5b32373b333b397e","S-Space":"1b5b32373b323b33327e","C-Esc":"1b
 
5b32373b353b32377e","kitty":"","protocol":"mok2","A-Space":"1b5b32373b333b33327e","S-Esc":"1b5b32373b323b32377e","Esc":"1b"},"12libvterm":{"Space":"20","modkeys":"\u001b[>4;0m","version":"1b5b3e303b3130303b3063","C-Tab":"1b5b393b3575","A-Esc":"9b00","S-C-I":"1b5b5a","C-I":"09","S-Tab":"1b5b5a","Tab":"09","resource":"","A-Tab":"8900","S-Space":"1b5b33323b3275","C-Esc":"1b5b32373b3575","kitty":"1b5b3f3075","protocol":"none","A-Space":"a000","S-Esc":"1b5b32373b3275","Esc":"1b"},"11xterm":{"Space":"20","modkeys":"\u001b[>4;0m","version":"1b5b3e34313b3337373b3063","C-Tab":"09","A-Esc":"9b00","S-C-I":"09","C-I":"09","S-Tab":"1b5b5a","Tab":"09","S-Space":"20","A-Tab":"8900","resource":"","C-Esc":"1b","kitty":"","protocol":"none","A-Space":"a000","S-Esc":"1b","Esc":"1b"}}
*** ../vim-9.0.0954/src/version.c       2022-11-26 19:16:44.186717893 +0000
--- src/version.c       2022-11-27 11:01:02.867610285 +0000
***************
*** 697,698 ****
--- 697,700 ----
  {   /* Add new patch number below this line */
+ /**/
+     955,
  /**/

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