| 1 | /* terminal.c -- controlling the terminal with termcap. */ |
| 2 | |
| 3 | /* Copyright (C) 1996 Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of the GNU Readline Library, a library for |
| 6 | reading lines of text with interactive input and history editing. |
| 7 | |
| 8 | The GNU Readline Library is free software; you can redistribute it |
| 9 | and/or modify it under the terms of the GNU General Public License |
| 10 | as published by the Free Software Foundation; either version 2, or |
| 11 | (at your option) any later version. |
| 12 | |
| 13 | The GNU Readline Library is distributed in the hope that it will be |
| 14 | useful, but WITHOUT ANY WARRANTY; without even the implied warranty |
| 15 | of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | GNU General Public License for more details. |
| 17 | |
| 18 | The GNU General Public License is often shipped with GNU software, and |
| 19 | is generally kept in a file called COPYING or LICENSE. If you do not |
| 20 | have a copy of the license, write to the Free Software Foundation, |
| 21 | 59 Temple Place, Suite 330, Boston, MA 02111 USA. */ |
| 22 | #define READLINE_LIBRARY |
| 23 | |
| 24 | #if defined (HAVE_CONFIG_H) |
| 25 | # include <config.h> |
| 26 | #endif |
| 27 | |
| 28 | #include <sys/types.h> |
| 29 | #include "posixstat.h" |
| 30 | #include <fcntl.h> |
| 31 | #if defined (HAVE_SYS_FILE_H) |
| 32 | # include <sys/file.h> |
| 33 | #endif /* HAVE_SYS_FILE_H */ |
| 34 | |
| 35 | #if defined (HAVE_UNISTD_H) |
| 36 | # include <unistd.h> |
| 37 | #endif /* HAVE_UNISTD_H */ |
| 38 | |
| 39 | #if defined (HAVE_STDLIB_H) |
| 40 | # include <stdlib.h> |
| 41 | #else |
| 42 | # include "ansi_stdlib.h" |
| 43 | #endif /* HAVE_STDLIB_H */ |
| 44 | |
| 45 | #if defined (HAVE_LOCALE_H) |
| 46 | # include <locale.h> |
| 47 | #endif |
| 48 | |
| 49 | #include <stdio.h> |
| 50 | |
| 51 | /* System-specific feature definitions and include files. */ |
| 52 | #include "rldefs.h" |
| 53 | |
| 54 | #if defined (GWINSZ_IN_SYS_IOCTL) && !defined (TIOCGWINSZ) |
| 55 | # include <sys/ioctl.h> |
| 56 | #endif /* GWINSZ_IN_SYS_IOCTL && !TIOCGWINSZ */ |
| 57 | |
| 58 | #ifdef __MSDOS__ |
| 59 | # include <pc.h> |
| 60 | #endif |
| 61 | |
| 62 | #include "rltty.h" |
| 63 | #include "tcap.h" |
| 64 | |
| 65 | /* Some standard library routines. */ |
| 66 | #include "readline.h" |
| 67 | #include "history.h" |
| 68 | |
| 69 | #include "rlprivate.h" |
| 70 | #include "rlshell.h" |
| 71 | |
| 72 | /* **************************************************************** */ |
| 73 | /* */ |
| 74 | /* Terminal and Termcap */ |
| 75 | /* */ |
| 76 | /* **************************************************************** */ |
| 77 | |
| 78 | #ifndef __MSDOS__ |
| 79 | static char *term_buffer = (char *)NULL; |
| 80 | static char *term_string_buffer = (char *)NULL; |
| 81 | |
| 82 | /* Non-zero means this terminal can't really do anything. */ |
| 83 | static int dumb_term; |
| 84 | #endif /* !__MSDOS__ */ |
| 85 | |
| 86 | static int tcap_initialized; |
| 87 | |
| 88 | #if !defined (__linux__) |
| 89 | # if defined (__EMX__) || defined (NEED_EXTERN_PC) |
| 90 | extern |
| 91 | # endif /* __EMX__ || NEED_EXTERN_PC */ |
| 92 | char PC, *BC, *UP; |
| 93 | #endif /* __linux__ */ |
| 94 | |
| 95 | /* Some strings to control terminal actions. These are output by tputs (). */ |
| 96 | char *term_goto, *term_clreol, *term_cr, *term_clrpag, *term_backspace; |
| 97 | char *term_pc; |
| 98 | |
| 99 | /* Non-zero if we determine that the terminal can do character insertion. */ |
| 100 | int terminal_can_insert = 0; |
| 101 | |
| 102 | /* How to insert characters. */ |
| 103 | char *term_im, *term_ei, *term_ic, *term_ip, *term_IC; |
| 104 | |
| 105 | /* How to delete characters. */ |
| 106 | char *term_dc, *term_DC; |
| 107 | |
| 108 | #if defined (HACK_TERMCAP_MOTION) |
| 109 | char *term_forward_char; |
| 110 | #endif /* HACK_TERMCAP_MOTION */ |
| 111 | |
| 112 | /* How to go up a line. */ |
| 113 | char *term_up; |
| 114 | |
| 115 | /* A visible bell, if the terminal can be made to flash the screen. */ |
| 116 | static char *visible_bell; |
| 117 | |
| 118 | /* Non-zero means the terminal can auto-wrap lines. */ |
| 119 | int _rl_term_autowrap; |
| 120 | |
| 121 | /* Non-zero means that this terminal has a meta key. */ |
| 122 | static int term_has_meta; |
| 123 | |
| 124 | /* The sequences to write to turn on and off the meta key, if this |
| 125 | terminal has one. */ |
| 126 | static char *term_mm, *term_mo; |
| 127 | |
| 128 | /* The key sequences output by the arrow keys, if this terminal has any. */ |
| 129 | static char *term_ku, *term_kd, *term_kr, *term_kl; |
| 130 | |
| 131 | /* How to initialize and reset the arrow keys, if this terminal has any. */ |
| 132 | static char *term_ks, *term_ke; |
| 133 | |
| 134 | /* The key sequences sent by the Home and End keys, if any. */ |
| 135 | static char *term_kh, *term_kH; |
| 136 | |
| 137 | /* Variables that hold the screen dimensions, used by the display code. */ |
| 138 | int screenwidth, screenheight, screenchars; |
| 139 | |
| 140 | /* Non-zero means the user wants to enable the keypad. */ |
| 141 | int _rl_enable_keypad; |
| 142 | |
| 143 | /* Non-zero means the user wants to enable a meta key. */ |
| 144 | int _rl_enable_meta = 1; |
| 145 | |
| 146 | #if defined (__EMX__) |
| 147 | static void |
| 148 | _emx_get_screensize (swp, shp) |
| 149 | int *swp, *shp; |
| 150 | { |
| 151 | int sz[2]; |
| 152 | |
| 153 | _scrsize (sz); |
| 154 | |
| 155 | if (swp) |
| 156 | *swp = sz[0]; |
| 157 | if (shp) |
| 158 | *shp = sz[1]; |
| 159 | } |
| 160 | #endif |
| 161 | |
| 162 | /* Get readline's idea of the screen size. TTY is a file descriptor open |
| 163 | to the terminal. If IGNORE_ENV is true, we do not pay attention to the |
| 164 | values of $LINES and $COLUMNS. The tests for TERM_STRING_BUFFER being |
| 165 | non-null serve to check whether or not we have initialized termcap. */ |
| 166 | void |
| 167 | _rl_get_screen_size (tty, ignore_env) |
| 168 | int tty, ignore_env; |
| 169 | { |
| 170 | char *ss; |
| 171 | #if defined (TIOCGWINSZ) |
| 172 | struct winsize window_size; |
| 173 | #endif /* TIOCGWINSZ */ |
| 174 | |
| 175 | #if defined (TIOCGWINSZ) |
| 176 | if (ioctl (tty, TIOCGWINSZ, &window_size) == 0) |
| 177 | { |
| 178 | screenwidth = (int) window_size.ws_col; |
| 179 | screenheight = (int) window_size.ws_row; |
| 180 | } |
| 181 | #endif /* TIOCGWINSZ */ |
| 182 | |
| 183 | #if defined (__EMX__) |
| 184 | _emx_get_screensize (&screenwidth, &screenheight); |
| 185 | #endif |
| 186 | |
| 187 | /* Environment variable COLUMNS overrides setting of "co" if IGNORE_ENV |
| 188 | is unset. */ |
| 189 | if (screenwidth <= 0) |
| 190 | { |
| 191 | if (ignore_env == 0 && (ss = get_env_value ("COLUMNS"))) |
| 192 | screenwidth = atoi (ss); |
| 193 | |
| 194 | #if defined (__DJGPP__) |
| 195 | if (screenwidth <= 0) |
| 196 | screenwidth = ScreenCols (); |
| 197 | #else |
| 198 | if (screenwidth <= 0 && term_string_buffer) |
| 199 | screenwidth = tgetnum ("co"); |
| 200 | #endif |
| 201 | } |
| 202 | |
| 203 | /* Environment variable LINES overrides setting of "li" if IGNORE_ENV |
| 204 | is unset. */ |
| 205 | if (screenheight <= 0) |
| 206 | { |
| 207 | if (ignore_env == 0 && (ss = get_env_value ("LINES"))) |
| 208 | screenheight = atoi (ss); |
| 209 | |
| 210 | #if defined (__DJGPP__) |
| 211 | if (screenheight <= 0) |
| 212 | screenheight = ScreenRows (); |
| 213 | #else |
| 214 | if (screenheight <= 0 && term_string_buffer) |
| 215 | screenheight = tgetnum ("li"); |
| 216 | #endif |
| 217 | } |
| 218 | |
| 219 | /* If all else fails, default to 80x24 terminal. */ |
| 220 | if (screenwidth <= 1) |
| 221 | screenwidth = 80; |
| 222 | |
| 223 | if (screenheight <= 0) |
| 224 | screenheight = 24; |
| 225 | |
| 226 | /* If we're being compiled as part of bash, set the environment |
| 227 | variables $LINES and $COLUMNS to new values. Otherwise, just |
| 228 | do a pair of putenv () or setenv () calls. */ |
| 229 | set_lines_and_columns (screenheight, screenwidth); |
| 230 | |
| 231 | if (_rl_term_autowrap == 0) |
| 232 | screenwidth--; |
| 233 | |
| 234 | screenchars = screenwidth * screenheight; |
| 235 | } |
| 236 | |
| 237 | void |
| 238 | _rl_set_screen_size (rows, cols) |
| 239 | int rows, cols; |
| 240 | { |
| 241 | screenheight = rows; |
| 242 | screenwidth = cols; |
| 243 | |
| 244 | if (_rl_term_autowrap == 0) |
| 245 | screenwidth--; |
| 246 | |
| 247 | screenchars = screenwidth * screenheight; |
| 248 | } |
| 249 | |
| 250 | void |
| 251 | rl_resize_terminal () |
| 252 | { |
| 253 | if (readline_echoing_p) |
| 254 | { |
| 255 | _rl_get_screen_size (fileno (rl_instream), 1); |
| 256 | _rl_redisplay_after_sigwinch (); |
| 257 | } |
| 258 | } |
| 259 | |
| 260 | struct _tc_string { |
| 261 | char *tc_var; |
| 262 | char **tc_value; |
| 263 | }; |
| 264 | |
| 265 | /* This should be kept sorted, just in case we decide to change the |
| 266 | search algorithm to something smarter. */ |
| 267 | static struct _tc_string tc_strings[] = |
| 268 | { |
| 269 | { "DC", &term_DC }, |
| 270 | { "IC", &term_IC }, |
| 271 | { "ce", &term_clreol }, |
| 272 | { "cl", &term_clrpag }, |
| 273 | { "cr", &term_cr }, |
| 274 | { "dc", &term_dc }, |
| 275 | { "ei", &term_ei }, |
| 276 | { "ic", &term_ic }, |
| 277 | { "im", &term_im }, |
| 278 | { "kd", &term_kd }, |
| 279 | { "kh", &term_kh }, /* home */ |
| 280 | { "kH", &term_kH }, /* end */ |
| 281 | { "kl", &term_kl }, |
| 282 | { "kr", &term_kr }, |
| 283 | { "ku", &term_ku }, |
| 284 | { "ks", &term_ks }, |
| 285 | { "ke", &term_ke }, |
| 286 | { "le", &term_backspace }, |
| 287 | { "mm", &term_mm }, |
| 288 | { "mo", &term_mo }, |
| 289 | #if defined (HACK_TERMCAP_MOTION) |
| 290 | { "nd", &term_forward_char }, |
| 291 | #endif |
| 292 | { "pc", &term_pc }, |
| 293 | { "up", &term_up }, |
| 294 | { "vb", &visible_bell }, |
| 295 | }; |
| 296 | |
| 297 | #define NUM_TC_STRINGS (sizeof (tc_strings) / sizeof (struct _tc_string)) |
| 298 | |
| 299 | /* Read the desired terminal capability strings into BP. The capabilities |
| 300 | are described in the TC_STRINGS table. */ |
| 301 | static void |
| 302 | get_term_capabilities (bp) |
| 303 | char **bp; |
| 304 | { |
| 305 | #if !defined (__DJGPP__) /* XXX - doesn't DJGPP have a termcap library? */ |
| 306 | register int i; |
| 307 | |
| 308 | for (i = 0; i < NUM_TC_STRINGS; i++) |
| 309 | *(tc_strings[i].tc_value) = tgetstr (tc_strings[i].tc_var, bp); |
| 310 | #endif |
| 311 | tcap_initialized = 1; |
| 312 | } |
| 313 | |
| 314 | #define CUSTOM_REDISPLAY_FUNC() (rl_redisplay_function != rl_redisplay) |
| 315 | #define CUSTOM_INPUT_FUNC() (rl_getc_function != rl_getc) |
| 316 | |
| 317 | int |
| 318 | _rl_init_terminal_io (terminal_name) |
| 319 | char *terminal_name; |
| 320 | { |
| 321 | char *term, *buffer; |
| 322 | int tty, tgetent_ret; |
| 323 | Keymap xkeymap; |
| 324 | |
| 325 | term = terminal_name ? terminal_name : get_env_value ("TERM"); |
| 326 | term_clrpag = term_cr = term_clreol = (char *)NULL; |
| 327 | tty = rl_instream ? fileno (rl_instream) : 0; |
| 328 | screenwidth = screenheight = 0; |
| 329 | |
| 330 | if (term == 0) |
| 331 | term = "dumb"; |
| 332 | |
| 333 | #ifdef __MSDOS__ |
| 334 | term_im = term_ei = term_ic = term_IC = (char *)NULL; |
| 335 | term_up = term_dc = term_DC = visible_bell = (char *)NULL; |
| 336 | term_ku = term_kd = term_kl = term_kr = (char *)NULL; |
| 337 | term_mm = term_mo = (char *)NULL; |
| 338 | terminal_can_insert = term_has_meta = _rl_term_autowrap = 0; |
| 339 | term_cr = "\r"; |
| 340 | |
| 341 | _rl_get_screen_size (tty, 0); |
| 342 | #else /* !__MSDOS__ */ |
| 343 | /* I've separated this out for later work on not calling tgetent at all |
| 344 | if the calling application has supplied a custom redisplay function, |
| 345 | (and possibly if the application has supplied a custom input function). */ |
| 346 | if (CUSTOM_REDISPLAY_FUNC()) |
| 347 | { |
| 348 | tgetent_ret = -1; |
| 349 | } |
| 350 | else |
| 351 | { |
| 352 | if (term_string_buffer == 0) |
| 353 | term_string_buffer = xmalloc(2032); |
| 354 | |
| 355 | if (term_buffer == 0) |
| 356 | term_buffer = xmalloc(4080); |
| 357 | |
| 358 | buffer = term_string_buffer; |
| 359 | |
| 360 | tgetent_ret = tgetent (term_buffer, term); |
| 361 | } |
| 362 | |
| 363 | if (tgetent_ret <= 0) |
| 364 | { |
| 365 | FREE (term_string_buffer); |
| 366 | FREE (term_buffer); |
| 367 | buffer = term_buffer = term_string_buffer = (char *)NULL; |
| 368 | |
| 369 | dumb_term = 1; |
| 370 | _rl_term_autowrap = 0; /* used by _rl_get_screen_size */ |
| 371 | |
| 372 | #if defined (__EMX__) |
| 373 | _emx_get_screensize (&screenwidth, &screenheight); |
| 374 | screenwidth--; |
| 375 | #else /* !__EMX__ */ |
| 376 | _rl_get_screen_size (tty, 0); |
| 377 | #endif /* !__EMX__ */ |
| 378 | |
| 379 | /* Defaults. */ |
| 380 | if (screenwidth <= 0 || screenheight <= 0) |
| 381 | { |
| 382 | screenwidth = 79; |
| 383 | screenheight = 24; |
| 384 | } |
| 385 | |
| 386 | /* Everything below here is used by the redisplay code (tputs). */ |
| 387 | screenchars = screenwidth * screenheight; |
| 388 | term_cr = "\r"; |
| 389 | term_im = term_ei = term_ic = term_IC = (char *)NULL; |
| 390 | term_up = term_dc = term_DC = visible_bell = (char *)NULL; |
| 391 | term_ku = term_kd = term_kl = term_kr = (char *)NULL; |
| 392 | term_mm = term_mo = (char *)NULL; |
| 393 | #if defined (HACK_TERMCAP_MOTION) |
| 394 | term_forward_char = (char *)NULL; |
| 395 | #endif |
| 396 | terminal_can_insert = term_has_meta = 0; |
| 397 | |
| 398 | /* Reasonable defaults for tgoto(). Readline currently only uses |
| 399 | tgoto if term_IC or term_DC is defined, but just in case we |
| 400 | change that later... */ |
| 401 | PC = '\0'; |
| 402 | BC = term_backspace = "\b"; |
| 403 | UP = term_up; |
| 404 | |
| 405 | return 0; |
| 406 | } |
| 407 | |
| 408 | get_term_capabilities (&buffer); |
| 409 | |
| 410 | /* Set up the variables that the termcap library expects the application |
| 411 | to provide. */ |
| 412 | PC = term_pc ? *term_pc : 0; |
| 413 | BC = term_backspace; |
| 414 | UP = term_up; |
| 415 | |
| 416 | if (!term_cr) |
| 417 | term_cr = "\r"; |
| 418 | |
| 419 | _rl_term_autowrap = tgetflag ("am") && tgetflag ("xn"); |
| 420 | |
| 421 | _rl_get_screen_size (tty, 0); |
| 422 | |
| 423 | /* "An application program can assume that the terminal can do |
| 424 | character insertion if *any one of* the capabilities `IC', |
| 425 | `im', `ic' or `ip' is provided." But we can't do anything if |
| 426 | only `ip' is provided, so... */ |
| 427 | terminal_can_insert = (term_IC || term_im || term_ic); |
| 428 | |
| 429 | /* Check to see if this terminal has a meta key and clear the capability |
| 430 | variables if there is none. */ |
| 431 | term_has_meta = (tgetflag ("km") || tgetflag ("MT")); |
| 432 | if (!term_has_meta) |
| 433 | term_mm = term_mo = (char *)NULL; |
| 434 | |
| 435 | #endif /* !__MSDOS__ */ |
| 436 | |
| 437 | /* Attempt to find and bind the arrow keys. Do not override already |
| 438 | bound keys in an overzealous attempt, however. */ |
| 439 | xkeymap = _rl_keymap; |
| 440 | |
| 441 | _rl_keymap = emacs_standard_keymap; |
| 442 | _rl_bind_if_unbound (term_ku, rl_get_previous_history); |
| 443 | _rl_bind_if_unbound (term_kd, rl_get_next_history); |
| 444 | _rl_bind_if_unbound (term_kr, rl_forward); |
| 445 | _rl_bind_if_unbound (term_kl, rl_backward); |
| 446 | |
| 447 | _rl_bind_if_unbound (term_kh, rl_beg_of_line); /* Home */ |
| 448 | _rl_bind_if_unbound (term_kH, rl_end_of_line); /* End */ |
| 449 | |
| 450 | #if defined (VI_MODE) |
| 451 | _rl_keymap = vi_movement_keymap; |
| 452 | _rl_bind_if_unbound (term_ku, rl_get_previous_history); |
| 453 | _rl_bind_if_unbound (term_kd, rl_get_next_history); |
| 454 | _rl_bind_if_unbound (term_kr, rl_forward); |
| 455 | _rl_bind_if_unbound (term_kl, rl_backward); |
| 456 | |
| 457 | _rl_bind_if_unbound (term_kh, rl_beg_of_line); /* Home */ |
| 458 | _rl_bind_if_unbound (term_kH, rl_end_of_line); /* End */ |
| 459 | #endif /* VI_MODE */ |
| 460 | |
| 461 | _rl_keymap = xkeymap; |
| 462 | |
| 463 | return 0; |
| 464 | } |
| 465 | |
| 466 | char * |
| 467 | rl_get_termcap (cap) |
| 468 | char *cap; |
| 469 | { |
| 470 | register int i; |
| 471 | |
| 472 | if (tcap_initialized == 0) |
| 473 | return ((char *)NULL); |
| 474 | for (i = 0; i < NUM_TC_STRINGS; i++) |
| 475 | { |
| 476 | if (tc_strings[i].tc_var[0] == cap[0] && strcmp (tc_strings[i].tc_var, cap) == 0) |
| 477 | return *(tc_strings[i].tc_value); |
| 478 | } |
| 479 | return ((char *)NULL); |
| 480 | } |
| 481 | |
| 482 | /* Re-initialize the terminal considering that the TERM/TERMCAP variable |
| 483 | has changed. */ |
| 484 | int |
| 485 | rl_reset_terminal (terminal_name) |
| 486 | char *terminal_name; |
| 487 | { |
| 488 | _rl_init_terminal_io (terminal_name); |
| 489 | return 0; |
| 490 | } |
| 491 | |
| 492 | /* A function for the use of tputs () */ |
| 493 | #ifdef _MINIX |
| 494 | void |
| 495 | _rl_output_character_function (c) |
| 496 | int c; |
| 497 | { |
| 498 | putc (c, _rl_out_stream); |
| 499 | } |
| 500 | #else /* !_MINIX */ |
| 501 | int |
| 502 | _rl_output_character_function (c) |
| 503 | int c; |
| 504 | { |
| 505 | return putc (c, _rl_out_stream); |
| 506 | } |
| 507 | #endif /* !_MINIX */ |
| 508 | |
| 509 | /* Write COUNT characters from STRING to the output stream. */ |
| 510 | void |
| 511 | _rl_output_some_chars (string, count) |
| 512 | char *string; |
| 513 | int count; |
| 514 | { |
| 515 | fwrite (string, 1, count, _rl_out_stream); |
| 516 | } |
| 517 | |
| 518 | /* Move the cursor back. */ |
| 519 | int |
| 520 | _rl_backspace (count) |
| 521 | int count; |
| 522 | { |
| 523 | register int i; |
| 524 | |
| 525 | #ifndef __MSDOS__ |
| 526 | if (term_backspace) |
| 527 | for (i = 0; i < count; i++) |
| 528 | tputs (term_backspace, 1, _rl_output_character_function); |
| 529 | else |
| 530 | #endif |
| 531 | for (i = 0; i < count; i++) |
| 532 | putc ('\b', _rl_out_stream); |
| 533 | return 0; |
| 534 | } |
| 535 | |
| 536 | /* Move to the start of the next line. */ |
| 537 | int |
| 538 | crlf () |
| 539 | { |
| 540 | #if defined (NEW_TTY_DRIVER) |
| 541 | if (term_cr) |
| 542 | tputs (term_cr, 1, _rl_output_character_function); |
| 543 | #endif /* NEW_TTY_DRIVER */ |
| 544 | putc ('\n', _rl_out_stream); |
| 545 | return 0; |
| 546 | } |
| 547 | |
| 548 | /* Ring the terminal bell. */ |
| 549 | int |
| 550 | ding () |
| 551 | { |
| 552 | if (readline_echoing_p) |
| 553 | { |
| 554 | switch (_rl_bell_preference) |
| 555 | { |
| 556 | case NO_BELL: |
| 557 | default: |
| 558 | break; |
| 559 | case VISIBLE_BELL: |
| 560 | #ifdef __MSDOS__ |
| 561 | ScreenVisualBell (); |
| 562 | break; |
| 563 | #else |
| 564 | if (visible_bell) |
| 565 | { |
| 566 | tputs (visible_bell, 1, _rl_output_character_function); |
| 567 | break; |
| 568 | } |
| 569 | #endif |
| 570 | /* FALLTHROUGH */ |
| 571 | case AUDIBLE_BELL: |
| 572 | fprintf (stderr, "\007"); |
| 573 | fflush (stderr); |
| 574 | break; |
| 575 | } |
| 576 | return (0); |
| 577 | } |
| 578 | return (-1); |
| 579 | } |
| 580 | |
| 581 | /* **************************************************************** */ |
| 582 | /* */ |
| 583 | /* Controlling the Meta Key and Keypad */ |
| 584 | /* */ |
| 585 | /* **************************************************************** */ |
| 586 | |
| 587 | void |
| 588 | _rl_enable_meta_key () |
| 589 | { |
| 590 | #if !defined (__DJGPP__) |
| 591 | if (term_has_meta && term_mm) |
| 592 | tputs (term_mm, 1, _rl_output_character_function); |
| 593 | #endif |
| 594 | } |
| 595 | |
| 596 | void |
| 597 | _rl_control_keypad (on) |
| 598 | int on; |
| 599 | { |
| 600 | #if !defined (__DJGPP__) |
| 601 | if (on && term_ks) |
| 602 | tputs (term_ks, 1, _rl_output_character_function); |
| 603 | else if (!on && term_ke) |
| 604 | tputs (term_ke, 1, _rl_output_character_function); |
| 605 | #endif |
| 606 | } |