gdb/tui/tui.c

   1 /* General functions for the WDB TUI.
   2
   3    Copyright (C) 1998-2019 Free Software Foundation, Inc.
   4
   5    Contributed by Hewlett-Packard Company.
   6
   7    This file is part of GDB.
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 3 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  21
  22 #include "defs.h"
  23 #include "gdbcmd.h"
  24 #include "tui/tui.h"
  25 #include "tui/tui-hooks.h"
  26 #include "tui/tui-command.h"
  27 #include "tui/tui-data.h"
  28 #include "tui/tui-layout.h"
  29 #include "tui/tui-io.h"
  30 #include "tui/tui-regs.h"
  31 #include "tui/tui-stack.h"
  32 #include "tui/tui-win.h"
  33 #include "tui/tui-winsource.h"
  34 #include "tui/tui-source.h"
  35 #include "target.h"
  36 #include "frame.h"
  37 #include "breakpoint.h"
  38 #include "inferior.h"
  39 #include "symtab.h"
  40 #include "source.h"
  41 #include "terminal.h"
  42 #include "top.h"
  43
  44 #include <ctype.h>
  45 #include <signal.h>
  46 #include <fcntl.h>
  47 #if 0
  48 #include <termio.h>
  49 #endif
  50 #include <setjmp.h>
  51
  52 #include "gdb_curses.h"
  53 #include "interps.h"
  54
  55 /* This redefines CTRL if it is not already defined, so it must come
  56    after terminal state releated include files like <term.h> and
  57    "gdb_curses.h".  */
  58 #include "readline/readline.h"
  59
  60 /* Tells whether the TUI is active or not.  */
  61 int tui_active = 0;
  62 static int tui_finish_init = 1;
  63
  64 enum tui_key_mode tui_current_key_mode = TUI_COMMAND_MODE;
  65
  66 struct tui_char_command
  67 {
  68   unsigned char key;
  69   const char *cmd;
  70 };
  71
  72 /* Key mapping to gdb commands when the TUI is using the single key
  73    mode.  */
  74 static const struct tui_char_command tui_commands[] = {
  75   { 'c', "continue" },
  76   { 'd', "down" },
  77   { 'f', "finish" },
  78   { 'n', "next" },
  79   { 'o', "nexti" },
  80   { 'r', "run" },
  81   { 's', "step" },
  82   { 'i', "stepi" },
  83   { 'u', "up" },
  84   { 'v', "info locals" },
  85   { 'w', "where" },
  86   { 0, 0 },
  87 };
  88
  89 static Keymap tui_keymap;
  90 static Keymap tui_readline_standard_keymap;
  91
  92 /* TUI readline command.
  93    Switch the output mode between TUI/standard gdb.  */
  94 static int
  95 tui_rl_switch_mode (int notused1, int notused2)
  96 {
  97
  98   /* Don't let exceptions escape.  We're in the middle of a readline
  99      callback that isn't prepared for that.  */
 100   try
 101     {
 102       if (tui_active)
 103         {
 104           tui_disable ();
 105           rl_prep_terminal (0);
 106         }
 107       else
 108         {
 109           /* If tui_enable throws, we'll re-prep below.  */
 110           rl_deprep_terminal ();
 111           tui_enable ();
 112         }
 113     }
 114   catch (const gdb_exception &ex)
 115     {
 116       exception_print (gdb_stderr, ex);
 117
 118       if (!tui_active)
 119         rl_prep_terminal (0);
 120     }
 121
 122   /* Clear the readline in case switching occurred in middle of
 123      something.  */
 124   if (rl_end)
 125     rl_kill_text (0, rl_end);
 126
 127   /* Since we left the curses mode, the terminal mode is restored to
 128      some previous state.  That state may not be suitable for readline
 129      to work correctly (it may be restored in line mode).  We force an
 130      exit of the current readline so that readline is re-entered and
 131      it will be able to setup the terminal for its needs.  By
 132      re-entering in readline, we also redisplay its prompt in the
 133      non-curses mode.  */
 134   rl_newline (1, '\n');
 135
 136   /* Make sure the \n we are returning does not repeat the last
 137      command.  */
 138   dont_repeat ();
 139   return 0;
 140 }
 141
 142 /* TUI readline command.
 143    Change the TUI layout to show a next layout.
 144    This function is bound to CTRL-X 2.  It is intended to provide
 145    a functionality close to the Emacs split-window command.  We
 146    always show two windows (src+asm), (src+regs) or (asm+regs).  */
 147 static int
 148 tui_rl_change_windows (int notused1, int notused2)
 149 {
 150   if (!tui_active)
 151     tui_rl_switch_mode (0 /* notused */, 0 /* notused */);
 152
 153   if (tui_active)
 154     {
 155       enum tui_layout_type new_layout;
 156
 157       new_layout = tui_current_layout ();
 158
 159       /* Select a new layout to have a rolling layout behavior with
 160          always two windows (except when undefined).  */
 161       switch (new_layout)
 162         {
 163         case SRC_COMMAND:
 164           new_layout = SRC_DISASSEM_COMMAND;
 165           break;
 166
 167         case DISASSEM_COMMAND:
 168           new_layout = SRC_DISASSEM_COMMAND;
 169           break;
 170
 171         case SRC_DATA_COMMAND:
 172           new_layout = SRC_DISASSEM_COMMAND;
 173           break;
 174
 175         case SRC_DISASSEM_COMMAND:
 176           new_layout = DISASSEM_DATA_COMMAND;
 177           break;
 178
 179         case DISASSEM_DATA_COMMAND:
 180           new_layout = SRC_DATA_COMMAND;
 181           break;
 182
 183         default:
 184           new_layout = SRC_COMMAND;
 185           break;
 186         }
 187       tui_set_layout (new_layout);
 188     }
 189   return 0;
 190 }
 191
 192 /* TUI readline command.
 193    Delete the second TUI window to only show one.  */
 194 static int
 195 tui_rl_delete_other_windows (int notused1, int notused2)
 196 {
 197   if (!tui_active)
 198     tui_rl_switch_mode (0 /* notused */, 0 /* notused */);
 199
 200   if (tui_active)
 201     {
 202       enum tui_layout_type new_layout;
 203
 204       new_layout = tui_current_layout ();
 205
 206       /* Kill one window.  */
 207       switch (new_layout)
 208         {
 209         case SRC_COMMAND:
 210         case SRC_DATA_COMMAND:
 211         case SRC_DISASSEM_COMMAND:
 212         default:
 213           new_layout = SRC_COMMAND;
 214           break;
 215
 216         case DISASSEM_COMMAND:
 217         case DISASSEM_DATA_COMMAND:
 218           new_layout = DISASSEM_COMMAND;
 219           break;
 220         }
 221       tui_set_layout (new_layout);
 222     }
 223   return 0;
 224 }
 225
 226 /* TUI readline command.
 227    Switch the active window to give the focus to a next window.  */
 228 static int
 229 tui_rl_other_window (int count, int key)
 230 {
 231   struct tui_win_info *win_info;
 232
 233   if (!tui_active)
 234     tui_rl_switch_mode (0 /* notused */, 0 /* notused */);
 235
 236   win_info = tui_next_win (tui_win_with_focus ());
 237   if (win_info)
 238     {
 239       tui_set_win_focus_to (win_info);
 240       keypad (TUI_CMD_WIN->handle.get (), win_info != TUI_CMD_WIN);
 241     }
 242   return 0;
 243 }
 244
 245 /* TUI readline command.
 246    Execute the gdb command bound to the specified key.  */
 247 static int
 248 tui_rl_command_key (int count, int key)
 249 {
 250   int i;
 251
 252   reinitialize_more_filter ();
 253   for (i = 0; tui_commands[i].cmd; i++)
 254     {
 255       if (tui_commands[i].key == key)
 256         {
 257           /* Insert the command in the readline buffer.
 258              Avoid calling the gdb command here since it creates
 259              a possible recursion on readline if prompt_for_continue
 260              is called (See PR 9584).  The command will also appear
 261              in the readline history which turns out to be better.  */
 262           rl_insert_text (tui_commands[i].cmd);
 263           rl_newline (1, '\n');
 264
 265           /* Switch to gdb command mode while executing the command.
 266              This way the gdb's continue prompty will be displayed.  */
 267           tui_set_key_mode (TUI_ONE_COMMAND_MODE);
 268           return 0;
 269         }
 270     }
 271   return 0;
 272 }
 273
 274 /* TUI readline command.
 275    Temporarily leave the TUI SingleKey mode to allow editing
 276    a gdb command with the normal readline.  Once the command
 277    is executed, the TUI SingleKey mode is installed back.  */
 278 static int
 279 tui_rl_command_mode (int count, int key)
 280 {
 281   tui_set_key_mode (TUI_ONE_COMMAND_MODE);
 282   return rl_insert (count, key);
 283 }
 284
 285 /* TUI readline command.
 286    Switch between TUI SingleKey mode and gdb readline editing.  */
 287 static int
 288 tui_rl_next_keymap (int notused1, int notused2)
 289 {
 290   if (!tui_active)
 291     tui_rl_switch_mode (0 /* notused */, 0 /* notused */);
 292
 293   tui_set_key_mode (tui_current_key_mode == TUI_COMMAND_MODE
 294                     ? TUI_SINGLE_KEY_MODE : TUI_COMMAND_MODE);
 295   return 0;
 296 }
 297
 298 /* Readline hook to redisplay ourself the gdb prompt.
 299    In the SingleKey mode, the prompt is not printed so that
 300    the command window is cleaner.  It will be displayed if
 301    we temporarily leave the SingleKey mode.  */
 302 static int
 303 tui_rl_startup_hook (void)
 304 {
 305   rl_already_prompted = 1;
 306   if (tui_current_key_mode != TUI_COMMAND_MODE
 307       && !gdb_in_secondary_prompt_p (current_ui))
 308     tui_set_key_mode (TUI_SINGLE_KEY_MODE);
 309   tui_redisplay_readline ();
 310   return 0;
 311 }
 312
 313 /* Change the TUI key mode by installing the appropriate readline
 314    keymap.  */
 315 void
 316 tui_set_key_mode (enum tui_key_mode mode)
 317 {
 318   tui_current_key_mode = mode;
 319   rl_set_keymap (mode == TUI_SINGLE_KEY_MODE
 320                  ? tui_keymap : tui_readline_standard_keymap);
 321   tui_show_locator_content ();
 322 }
 323
 324 /* Initialize readline and configure the keymap for the switching
 325    key shortcut.  */
 326 void
 327 tui_initialize_readline (void)
 328 {
 329   int i;
 330   Keymap tui_ctlx_keymap;
 331
 332   rl_add_defun ("tui-switch-mode", tui_rl_switch_mode, -1);
 333   rl_add_defun ("next-keymap", tui_rl_next_keymap, -1);
 334   rl_add_defun ("tui-delete-other-windows", tui_rl_delete_other_windows, -1);
 335   rl_add_defun ("tui-change-windows", tui_rl_change_windows, -1);
 336   rl_add_defun ("tui-other-window", tui_rl_other_window, -1);
 337
 338   tui_keymap = rl_make_bare_keymap ();
 339
 340   /* The named keymap feature was added in Readline 8.0.  */
 341 #if RL_READLINE_VERSION >= 0x800
 342   rl_set_keymap_name ("SingleKey", tui_keymap);
 343 #endif
 344
 345   tui_ctlx_keymap = rl_make_bare_keymap ();
 346   tui_readline_standard_keymap = rl_get_keymap ();
 347
 348   for (i = 0; tui_commands[i].cmd; i++)
 349     rl_bind_key_in_map (tui_commands[i].key, tui_rl_command_key, tui_keymap);
 350
 351   rl_generic_bind (ISKMAP, "\\C-x", (char*) tui_ctlx_keymap, tui_keymap);
 352
 353   /* Bind all other keys to tui_rl_command_mode so that we switch
 354      temporarily from SingleKey mode and can enter a gdb command.  */
 355   for (i = ' '; i < 0x7f; i++)
 356     {
 357       int j;
 358
 359       for (j = 0; tui_commands[j].cmd; j++)
 360         if (tui_commands[j].key == i)
 361           break;
 362
 363       if (tui_commands[j].cmd)
 364         continue;
 365
 366       rl_bind_key_in_map (i, tui_rl_command_mode, tui_keymap);
 367     }
 368
 369   rl_bind_key_in_map ('a', tui_rl_switch_mode, emacs_ctlx_keymap);
 370   rl_bind_key_in_map ('a', tui_rl_switch_mode, tui_ctlx_keymap);
 371   rl_bind_key_in_map ('A', tui_rl_switch_mode, emacs_ctlx_keymap);
 372   rl_bind_key_in_map ('A', tui_rl_switch_mode, tui_ctlx_keymap);
 373   rl_bind_key_in_map (CTRL ('A'), tui_rl_switch_mode, emacs_ctlx_keymap);
 374   rl_bind_key_in_map (CTRL ('A'), tui_rl_switch_mode, tui_ctlx_keymap);
 375   rl_bind_key_in_map ('1', tui_rl_delete_other_windows, emacs_ctlx_keymap);
 376   rl_bind_key_in_map ('1', tui_rl_delete_other_windows, tui_ctlx_keymap);
 377   rl_bind_key_in_map ('2', tui_rl_change_windows, emacs_ctlx_keymap);
 378   rl_bind_key_in_map ('2', tui_rl_change_windows, tui_ctlx_keymap);
 379   rl_bind_key_in_map ('o', tui_rl_other_window, emacs_ctlx_keymap);
 380   rl_bind_key_in_map ('o', tui_rl_other_window, tui_ctlx_keymap);
 381   rl_bind_key_in_map ('q', tui_rl_next_keymap, tui_keymap);
 382   rl_bind_key_in_map ('s', tui_rl_next_keymap, emacs_ctlx_keymap);
 383   rl_bind_key_in_map ('s', tui_rl_next_keymap, tui_ctlx_keymap);
 384 }
 385
 386 /* Return the TERM variable from the environment, or "<unset>"
 387    if not set.  */
 388
 389 static const char *
 390 gdb_getenv_term (void)
 391 {
 392   const char *term;
 393
 394   term = getenv ("TERM");
 395   if (term != NULL)
 396     return term;
 397   return "<unset>";
 398 }
 399
 400 /* Enter in the tui mode (curses).
 401    When in normal mode, it installs the tui hooks in gdb, redirects
 402    the gdb output, configures the readline to work in tui mode.
 403    When in curses mode, it does nothing.  */
 404 void
 405 tui_enable (void)
 406 {
 407   if (tui_active)
 408     return;
 409
 410   /* To avoid to initialize curses when gdb starts, there is a deferred
 411      curses initialization.  This initialization is made only once
 412      and the first time the curses mode is entered.  */
 413   if (tui_finish_init)
 414     {
 415       WINDOW *w;
 416       SCREEN *s;
 417 #ifndef __MINGW32__
 418        const char *cap;
 419 #endif
 420       const char *interp;
 421
 422       /* If the top level interpreter is not the console/tui (e.g.,
 423          MI), enabling curses will certainly lose.  */
 424       interp = top_level_interpreter ()->name ();
 425       if (strcmp (interp, INTERP_TUI) != 0)
 426         error (_("Cannot enable the TUI when the interpreter is '%s'"), interp);
 427
 428       /* Don't try to setup curses (and print funny control
 429          characters) if we're not outputting to a terminal.  */
 430       if (!ui_file_isatty (gdb_stdout))
 431         error (_("Cannot enable the TUI when output is not a terminal"));
 432
 433       s = newterm (NULL, stdout, stdin);
 434 #ifdef __MINGW32__
 435       /* The MinGW port of ncurses requires $TERM to be unset in order
 436          to activate the Windows console driver.  */
 437       if (s == NULL)
 438         s = newterm ((char *) "unknown", stdout, stdin);
 439 #endif
 440       if (s == NULL)
 441         {
 442           error (_("Cannot enable the TUI: error opening terminal [TERM=%s]"),
 443                  gdb_getenv_term ());
 444         }
 445       w = stdscr;
 446       if (has_colors ())
 447         {
 448 #ifdef HAVE_USE_DEFAULT_COLORS
 449           /* Ncurses extension to help with resetting to the default
 450              color.  */
 451           use_default_colors ();
 452 #endif
 453           start_color ();
 454         }
 455
 456       /* Check required terminal capabilities.  The MinGW port of
 457          ncurses does have them, but doesn't expose them through "cup".  */
 458 #ifndef __MINGW32__
 459       cap = tigetstr ((char *) "cup");
 460       if (cap == NULL || cap == (char *) -1 || *cap == '\0')
 461         {
 462           endwin ();
 463           delscreen (s);
 464           error (_("Cannot enable the TUI: "
 465                    "terminal doesn't support cursor addressing [TERM=%s]"),
 466                  gdb_getenv_term ());
 467         }
 468 #endif
 469
 470       cbreak ();
 471       noecho ();
 472       /* timeout (1); */
 473       nodelay(w, FALSE);
 474       nl();
 475       keypad (w, TRUE);
 476       tui_set_term_height_to (LINES);
 477       tui_set_term_width_to (COLS);
 478       def_prog_mode ();
 479
 480       tui_show_frame_info (0);
 481       tui_set_layout (SRC_COMMAND);
 482       tui_set_win_focus_to (TUI_SRC_WIN);
 483       keypad (TUI_CMD_WIN->handle.get (), TRUE);
 484       wrefresh (TUI_CMD_WIN->handle.get ());
 485       tui_finish_init = 0;
 486     }
 487   else
 488     {
 489      /* Save the current gdb setting of the terminal.
 490         Curses will restore this state when endwin() is called.  */
 491      def_shell_mode ();
 492      clearok (stdscr, TRUE);
 493    }
 494
 495   /* Install the TUI specific hooks.  */
 496   tui_install_hooks ();
 497   rl_startup_hook = tui_rl_startup_hook;
 498
 499   if (tui_update_variables ())
 500     tui_rehighlight_all ();
 501
 502   tui_setup_io (1);
 503
 504   tui_active = 1;
 505
 506   /* Resize windows before anything might display/refresh a
 507      window.  */
 508   if (tui_win_resized ())
 509     {
 510       tui_set_win_resized_to (false);
 511       tui_resize_all ();
 512     }
 513
 514   if (deprecated_safe_get_selected_frame ())
 515     tui_show_frame_info (deprecated_safe_get_selected_frame ());
 516
 517   /* Restore TUI keymap.  */
 518   tui_set_key_mode (tui_current_key_mode);
 519
 520   /* Refresh the screen.  */
 521   tui_refresh_all_win ();
 522
 523   /* Update gdb's knowledge of its terminal.  */
 524   gdb_save_tty_state ();
 525   tui_update_gdb_sizes ();
 526 }
 527
 528 /* Leave the tui mode.
 529    Remove the tui hooks and configure the gdb output and readline
 530    back to their original state.  The curses mode is left so that
 531    the terminal setting is restored to the point when we entered.  */
 532 void
 533 tui_disable (void)
 534 {
 535   if (!tui_active)
 536     return;
 537
 538   /* Restore initial readline keymap.  */
 539   rl_set_keymap (tui_readline_standard_keymap);
 540
 541   /* Remove TUI hooks.  */
 542   tui_remove_hooks ();
 543   rl_startup_hook = 0;
 544   rl_already_prompted = 0;
 545
 546   /* Leave curses and restore previous gdb terminal setting.  */
 547   endwin ();
 548
 549   /* gdb terminal has changed, update gdb internal copy of it
 550      so that terminal management with the inferior works.  */
 551   tui_setup_io (0);
 552
 553   /* Update gdb's knowledge of its terminal.  */
 554   gdb_save_tty_state ();
 555
 556   tui_active = 0;
 557   tui_update_gdb_sizes ();
 558 }
 559
 560 /* Command wrapper for enabling tui mode.  */
 561
 562 static void
 563 tui_enable_command (const char *args, int from_tty)
 564 {
 565   tui_enable ();
 566 }
 567
 568 /* Command wrapper for leaving tui mode.  */
 569
 570 static void
 571 tui_disable_command (const char *args, int from_tty)
 572 {
 573   tui_disable ();
 574 }
 575
 576 #if 0
 577 /* Solaris <sys/termios.h> defines CTRL.  */
 578 #ifndef CTRL
 579 #define CTRL(x)         (x & ~0140)
 580 #endif
 581
 582 #define FILEDES         2
 583 #define CHK(val, dft)   (val<=0 ? dft : val)
 584
 585 static void
 586 tui_reset (void)
 587 {
 588   struct termio mode;
 589
 590   /* Reset the teletype mode bits to a sensible state.
 591      Copied tset.c.  */
 592 #if defined (TIOCGETC)
 593   struct tchars tbuf;
 594 #endif /* TIOCGETC */
 595 #ifdef UCB_NTTY
 596   struct ltchars ltc;
 597
 598   if (ldisc == NTTYDISC)
 599     {
 600       ioctl (FILEDES, TIOCGLTC, &ltc);
 601       ltc.t_suspc = CHK (ltc.t_suspc, CTRL ('Z'));
 602       ltc.t_dsuspc = CHK (ltc.t_dsuspc, CTRL ('Y'));
 603       ltc.t_rprntc = CHK (ltc.t_rprntc, CTRL ('R'));
 604       ltc.t_flushc = CHK (ltc.t_flushc, CTRL ('O'));
 605       ltc.t_werasc = CHK (ltc.t_werasc, CTRL ('W'));
 606       ltc.t_lnextc = CHK (ltc.t_lnextc, CTRL ('V'));
 607       ioctl (FILEDES, TIOCSLTC, &ltc);
 608     }
 609 #endif /* UCB_NTTY */
 610 #ifdef TIOCGETC
 611   ioctl (FILEDES, TIOCGETC, &tbuf);
 612   tbuf.t_intrc = CHK (tbuf.t_intrc, CTRL ('?'));
 613   tbuf.t_quitc = CHK (tbuf.t_quitc, CTRL ('\\'));
 614   tbuf.t_startc = CHK (tbuf.t_startc, CTRL ('Q'));
 615   tbuf.t_stopc = CHK (tbuf.t_stopc, CTRL ('S'));
 616   tbuf.t_eofc = CHK (tbuf.t_eofc, CTRL ('D'));
 617   /* brkc is left alone.  */
 618   ioctl (FILEDES, TIOCSETC, &tbuf);
 619 #endif /* TIOCGETC */
 620   mode.sg_flags &= ~(RAW
 621 #ifdef CBREAK
 622                      | CBREAK
 623 #endif /* CBREAK */
 624                      | VTDELAY | ALLDELAY);
 625   mode.sg_flags |= XTABS | ECHO | CRMOD | ANYP;
 626 }
 627 #endif
 628
 629 void
 630 tui_show_source ()
 631 {
 632   struct symtab_and_line cursal = get_current_source_symtab_and_line ();
 633
 634   /* Make sure that the source window is displayed.  */
 635   tui_add_win_to_layout (SRC_WIN);
 636
 637   tui_update_source_windows_with_line (cursal.symtab, cursal.line);
 638   tui_update_locator_fullname (cursal.symtab);
 639 }
 640
 641 void
 642 tui_show_assembly (struct gdbarch *gdbarch, CORE_ADDR addr)
 643 {
 644   tui_add_win_to_layout (DISASSEM_WIN);
 645   tui_update_source_windows_with_addr (gdbarch, addr);
 646 }
 647
 648 bool
 649 tui_is_window_visible (enum tui_win_type type)
 650 {
 651   if (tui_active == 0)
 652     return false;
 653
 654   if (tui_win_list[type] == 0)
 655     return false;
 656
 657   return tui_win_list[type]->is_visible ();
 658 }
 659
 660 int
 661 tui_get_command_dimension (unsigned int *width,
 662                            unsigned int *height)
 663 {
 664   if (!tui_active || (TUI_CMD_WIN == NULL))
 665     {
 666       return 0;
 667     }
 668
 669   *width = TUI_CMD_WIN->width;
 670   *height = TUI_CMD_WIN->height;
 671   return 1;
 672 }
 673
 674 void
 675 _initialize_tui (void)
 676 {
 677   struct cmd_list_element **tuicmd;
 678
 679   tuicmd = tui_get_cmd_list ();
 680
 681   add_cmd ("enable", class_tui, tui_enable_command,
 682            _("Enable TUI display mode."),
 683            tuicmd);
 684   add_cmd ("disable", class_tui, tui_disable_command,
 685            _("Disable TUI display mode."),
 686            tuicmd);
 687 }