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ccc6cda3 JA |
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 | |
bb70624e | 10 | as published by the Free Software Foundation; either version 2, or |
ccc6cda3 JA |
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, | |
bb70624e | 21 | 59 Temple Place, Suite 330, Boston, MA 02111 USA. */ |
ccc6cda3 JA |
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 | ||
ccc6cda3 | 49 | #include <stdio.h> |
ccc6cda3 JA |
50 | |
51 | /* System-specific feature definitions and include files. */ | |
52 | #include "rldefs.h" | |
53 | ||
d166f048 | 54 | #if defined (GWINSZ_IN_SYS_IOCTL) && !defined (TIOCGWINSZ) |
ccc6cda3 | 55 | # include <sys/ioctl.h> |
d166f048 JA |
56 | #endif /* GWINSZ_IN_SYS_IOCTL && !TIOCGWINSZ */ |
57 | ||
58 | #include "rltty.h" | |
59 | #include "tcap.h" | |
ccc6cda3 JA |
60 | |
61 | /* Some standard library routines. */ | |
62 | #include "readline.h" | |
63 | #include "history.h" | |
64 | ||
bb70624e JA |
65 | #include "rlprivate.h" |
66 | #include "rlshell.h" | |
d166f048 | 67 | |
ccc6cda3 JA |
68 | /* **************************************************************** */ |
69 | /* */ | |
70 | /* Terminal and Termcap */ | |
71 | /* */ | |
72 | /* **************************************************************** */ | |
73 | ||
74 | static char *term_buffer = (char *)NULL; | |
75 | static char *term_string_buffer = (char *)NULL; | |
76 | ||
77 | static int tcap_initialized; | |
78 | ||
ccc6cda3 | 79 | #if !defined (__linux__) |
d166f048 JA |
80 | # if defined (__EMX__) || defined (NEED_EXTERN_PC) |
81 | extern | |
82 | # endif /* __EMX__ || NEED_EXTERN_PC */ | |
83 | char PC, *BC, *UP; | |
ccc6cda3 JA |
84 | #endif /* __linux__ */ |
85 | ||
86 | /* Some strings to control terminal actions. These are output by tputs (). */ | |
28ef6c31 JA |
87 | char *_rl_term_clreol; |
88 | char *_rl_term_clrpag; | |
89 | char *_rl_term_cr; | |
90 | char *_rl_term_backspace; | |
91 | char *_rl_term_goto; | |
92 | char *_rl_term_pc; | |
ccc6cda3 JA |
93 | |
94 | /* Non-zero if we determine that the terminal can do character insertion. */ | |
28ef6c31 | 95 | int _rl_terminal_can_insert = 0; |
ccc6cda3 JA |
96 | |
97 | /* How to insert characters. */ | |
28ef6c31 JA |
98 | char *_rl_term_im; |
99 | char *_rl_term_ei; | |
100 | char *_rl_term_ic; | |
101 | char *_rl_term_ip; | |
102 | char *_rl_term_IC; | |
ccc6cda3 JA |
103 | |
104 | /* How to delete characters. */ | |
28ef6c31 JA |
105 | char *_rl_term_dc; |
106 | char *_rl_term_DC; | |
ccc6cda3 JA |
107 | |
108 | #if defined (HACK_TERMCAP_MOTION) | |
28ef6c31 | 109 | char *_rl_term_forward_char; |
ccc6cda3 JA |
110 | #endif /* HACK_TERMCAP_MOTION */ |
111 | ||
112 | /* How to go up a line. */ | |
28ef6c31 | 113 | char *_rl_term_up; |
ccc6cda3 | 114 | |
28ef6c31 JA |
115 | /* A visible bell; char if the terminal can be made to flash the screen. */ |
116 | static char *_rl_visible_bell; | |
ccc6cda3 JA |
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 | |
28ef6c31 JA |
125 | terminal has one. */ |
126 | static char *_rl_term_mm; | |
127 | static char *_rl_term_mo; | |
ccc6cda3 JA |
128 | |
129 | /* The key sequences output by the arrow keys, if this terminal has any. */ | |
28ef6c31 JA |
130 | static char *_rl_term_ku; |
131 | static char *_rl_term_kd; | |
132 | static char *_rl_term_kr; | |
133 | static char *_rl_term_kl; | |
ccc6cda3 JA |
134 | |
135 | /* How to initialize and reset the arrow keys, if this terminal has any. */ | |
28ef6c31 JA |
136 | static char *_rl_term_ks; |
137 | static char *_rl_term_ke; | |
ccc6cda3 JA |
138 | |
139 | /* The key sequences sent by the Home and End keys, if any. */ | |
28ef6c31 JA |
140 | static char *_rl_term_kh; |
141 | static char *_rl_term_kH; | |
ccc6cda3 JA |
142 | |
143 | /* Variables that hold the screen dimensions, used by the display code. */ | |
28ef6c31 | 144 | int _rl_screenwidth, _rl_screenheight, _rl_screenchars; |
ccc6cda3 JA |
145 | |
146 | /* Non-zero means the user wants to enable the keypad. */ | |
147 | int _rl_enable_keypad; | |
148 | ||
149 | /* Non-zero means the user wants to enable a meta key. */ | |
150 | int _rl_enable_meta = 1; | |
151 | ||
bb70624e JA |
152 | #if defined (__EMX__) |
153 | static void | |
154 | _emx_get_screensize (swp, shp) | |
155 | int *swp, *shp; | |
156 | { | |
157 | int sz[2]; | |
158 | ||
159 | _scrsize (sz); | |
160 | ||
161 | if (swp) | |
162 | *swp = sz[0]; | |
163 | if (shp) | |
164 | *shp = sz[1]; | |
165 | } | |
166 | #endif | |
167 | ||
ccc6cda3 JA |
168 | /* Get readline's idea of the screen size. TTY is a file descriptor open |
169 | to the terminal. If IGNORE_ENV is true, we do not pay attention to the | |
170 | values of $LINES and $COLUMNS. The tests for TERM_STRING_BUFFER being | |
171 | non-null serve to check whether or not we have initialized termcap. */ | |
172 | void | |
173 | _rl_get_screen_size (tty, ignore_env) | |
174 | int tty, ignore_env; | |
175 | { | |
176 | char *ss; | |
177 | #if defined (TIOCGWINSZ) | |
178 | struct winsize window_size; | |
179 | #endif /* TIOCGWINSZ */ | |
180 | ||
181 | #if defined (TIOCGWINSZ) | |
182 | if (ioctl (tty, TIOCGWINSZ, &window_size) == 0) | |
183 | { | |
28ef6c31 JA |
184 | _rl_screenwidth = (int) window_size.ws_col; |
185 | _rl_screenheight = (int) window_size.ws_row; | |
ccc6cda3 JA |
186 | } |
187 | #endif /* TIOCGWINSZ */ | |
188 | ||
d166f048 | 189 | #if defined (__EMX__) |
28ef6c31 | 190 | _emx_get_screensize (&_rl_screenwidth, &_rl_screenheight); |
d166f048 JA |
191 | #endif |
192 | ||
ccc6cda3 JA |
193 | /* Environment variable COLUMNS overrides setting of "co" if IGNORE_ENV |
194 | is unset. */ | |
28ef6c31 | 195 | if (_rl_screenwidth <= 0) |
ccc6cda3 | 196 | { |
28ef6c31 JA |
197 | if (ignore_env == 0 && (ss = sh_get_env_value ("COLUMNS"))) |
198 | _rl_screenwidth = atoi (ss); | |
ccc6cda3 | 199 | |
bb70624e | 200 | #if !defined (__DJGPP__) |
28ef6c31 JA |
201 | if (_rl_screenwidth <= 0 && term_string_buffer) |
202 | _rl_screenwidth = tgetnum ("co"); | |
bb70624e | 203 | #endif |
ccc6cda3 JA |
204 | } |
205 | ||
206 | /* Environment variable LINES overrides setting of "li" if IGNORE_ENV | |
207 | is unset. */ | |
28ef6c31 | 208 | if (_rl_screenheight <= 0) |
ccc6cda3 | 209 | { |
28ef6c31 JA |
210 | if (ignore_env == 0 && (ss = sh_get_env_value ("LINES"))) |
211 | _rl_screenheight = atoi (ss); | |
ccc6cda3 | 212 | |
bb70624e | 213 | #if !defined (__DJGPP__) |
28ef6c31 JA |
214 | if (_rl_screenheight <= 0 && term_string_buffer) |
215 | _rl_screenheight = tgetnum ("li"); | |
bb70624e | 216 | #endif |
ccc6cda3 JA |
217 | } |
218 | ||
219 | /* If all else fails, default to 80x24 terminal. */ | |
28ef6c31 JA |
220 | if (_rl_screenwidth <= 1) |
221 | _rl_screenwidth = 80; | |
ccc6cda3 | 222 | |
28ef6c31 JA |
223 | if (_rl_screenheight <= 0) |
224 | _rl_screenheight = 24; | |
ccc6cda3 JA |
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. */ | |
28ef6c31 | 229 | sh_set_lines_and_columns (_rl_screenheight, _rl_screenwidth); |
ccc6cda3 | 230 | |
bb70624e | 231 | if (_rl_term_autowrap == 0) |
28ef6c31 | 232 | _rl_screenwidth--; |
ccc6cda3 | 233 | |
28ef6c31 | 234 | _rl_screenchars = _rl_screenwidth * _rl_screenheight; |
ccc6cda3 JA |
235 | } |
236 | ||
237 | void | |
238 | _rl_set_screen_size (rows, cols) | |
239 | int rows, cols; | |
240 | { | |
28ef6c31 JA |
241 | if (rows == 0 || cols == 0) |
242 | return; | |
243 | ||
244 | _rl_screenheight = rows; | |
245 | _rl_screenwidth = cols; | |
ccc6cda3 JA |
246 | |
247 | if (_rl_term_autowrap == 0) | |
28ef6c31 | 248 | _rl_screenwidth--; |
ccc6cda3 | 249 | |
28ef6c31 JA |
250 | _rl_screenchars = _rl_screenwidth * _rl_screenheight; |
251 | } | |
252 | ||
253 | void | |
254 | rl_set_screen_size (rows, cols) | |
255 | int rows, cols; | |
256 | { | |
257 | _rl_set_screen_size (rows, cols); | |
ccc6cda3 JA |
258 | } |
259 | ||
28ef6c31 JA |
260 | void |
261 | rl_get_screen_size (rows, cols) | |
262 | int *rows, *cols; | |
263 | { | |
264 | if (rows) | |
265 | *rows = _rl_screenheight; | |
266 | if (cols) | |
267 | *cols = _rl_screenwidth; | |
268 | } | |
269 | ||
b72432fd JA |
270 | void |
271 | rl_resize_terminal () | |
272 | { | |
273 | if (readline_echoing_p) | |
274 | { | |
275 | _rl_get_screen_size (fileno (rl_instream), 1); | |
276 | _rl_redisplay_after_sigwinch (); | |
277 | } | |
278 | } | |
279 | ||
ccc6cda3 | 280 | struct _tc_string { |
28ef6c31 | 281 | const char *tc_var; |
ccc6cda3 JA |
282 | char **tc_value; |
283 | }; | |
284 | ||
285 | /* This should be kept sorted, just in case we decide to change the | |
286 | search algorithm to something smarter. */ | |
287 | static struct _tc_string tc_strings[] = | |
288 | { | |
28ef6c31 JA |
289 | { "DC", &_rl_term_DC }, |
290 | { "IC", &_rl_term_IC }, | |
291 | { "ce", &_rl_term_clreol }, | |
292 | { "cl", &_rl_term_clrpag }, | |
293 | { "cr", &_rl_term_cr }, | |
294 | { "dc", &_rl_term_dc }, | |
295 | { "ei", &_rl_term_ei }, | |
296 | { "ic", &_rl_term_ic }, | |
297 | { "im", &_rl_term_im }, | |
298 | { "kd", &_rl_term_kd }, | |
299 | { "kh", &_rl_term_kh }, /* home */ | |
300 | { "kH", &_rl_term_kH }, /* end */ | |
301 | { "kl", &_rl_term_kl }, | |
302 | { "kr", &_rl_term_kr }, | |
303 | { "ku", &_rl_term_ku }, | |
304 | { "ks", &_rl_term_ks }, | |
305 | { "ke", &_rl_term_ke }, | |
306 | { "le", &_rl_term_backspace }, | |
307 | { "mm", &_rl_term_mm }, | |
308 | { "mo", &_rl_term_mo }, | |
ccc6cda3 | 309 | #if defined (HACK_TERMCAP_MOTION) |
28ef6c31 | 310 | { "nd", &_rl_term_forward_char }, |
ccc6cda3 | 311 | #endif |
28ef6c31 JA |
312 | { "pc", &_rl_term_pc }, |
313 | { "up", &_rl_term_up }, | |
314 | { "vb", &_rl_visible_bell }, | |
ccc6cda3 JA |
315 | }; |
316 | ||
317 | #define NUM_TC_STRINGS (sizeof (tc_strings) / sizeof (struct _tc_string)) | |
318 | ||
319 | /* Read the desired terminal capability strings into BP. The capabilities | |
320 | are described in the TC_STRINGS table. */ | |
321 | static void | |
322 | get_term_capabilities (bp) | |
323 | char **bp; | |
324 | { | |
bb70624e | 325 | #if !defined (__DJGPP__) /* XXX - doesn't DJGPP have a termcap library? */ |
ccc6cda3 JA |
326 | register int i; |
327 | ||
328 | for (i = 0; i < NUM_TC_STRINGS; i++) | |
329 | *(tc_strings[i].tc_value) = tgetstr (tc_strings[i].tc_var, bp); | |
bb70624e | 330 | #endif |
ccc6cda3 JA |
331 | tcap_initialized = 1; |
332 | } | |
333 | ||
bb70624e JA |
334 | #define CUSTOM_REDISPLAY_FUNC() (rl_redisplay_function != rl_redisplay) |
335 | #define CUSTOM_INPUT_FUNC() (rl_getc_function != rl_getc) | |
336 | ||
ccc6cda3 JA |
337 | int |
338 | _rl_init_terminal_io (terminal_name) | |
28ef6c31 | 339 | const char *terminal_name; |
ccc6cda3 | 340 | { |
28ef6c31 JA |
341 | const char *term; |
342 | char *buffer; | |
bb70624e | 343 | int tty, tgetent_ret; |
ccc6cda3 JA |
344 | Keymap xkeymap; |
345 | ||
28ef6c31 JA |
346 | term = terminal_name ? terminal_name : sh_get_env_value ("TERM"); |
347 | _rl_term_clrpag = _rl_term_cr = _rl_term_clreol = (char *)NULL; | |
bb70624e | 348 | tty = rl_instream ? fileno (rl_instream) : 0; |
28ef6c31 | 349 | _rl_screenwidth = _rl_screenheight = 0; |
ccc6cda3 | 350 | |
bb70624e JA |
351 | if (term == 0) |
352 | term = "dumb"; | |
ccc6cda3 | 353 | |
bb70624e JA |
354 | /* I've separated this out for later work on not calling tgetent at all |
355 | if the calling application has supplied a custom redisplay function, | |
356 | (and possibly if the application has supplied a custom input function). */ | |
357 | if (CUSTOM_REDISPLAY_FUNC()) | |
358 | { | |
359 | tgetent_ret = -1; | |
360 | } | |
361 | else | |
362 | { | |
363 | if (term_string_buffer == 0) | |
364 | term_string_buffer = xmalloc(2032); | |
ccc6cda3 | 365 | |
bb70624e JA |
366 | if (term_buffer == 0) |
367 | term_buffer = xmalloc(4080); | |
ccc6cda3 | 368 | |
bb70624e | 369 | buffer = term_string_buffer; |
ccc6cda3 | 370 | |
bb70624e JA |
371 | tgetent_ret = tgetent (term_buffer, term); |
372 | } | |
ccc6cda3 | 373 | |
bb70624e | 374 | if (tgetent_ret <= 0) |
ccc6cda3 | 375 | { |
bb70624e JA |
376 | FREE (term_string_buffer); |
377 | FREE (term_buffer); | |
378 | buffer = term_buffer = term_string_buffer = (char *)NULL; | |
379 | ||
bb70624e JA |
380 | _rl_term_autowrap = 0; /* used by _rl_get_screen_size */ |
381 | ||
382 | #if defined (__EMX__) | |
28ef6c31 JA |
383 | _emx_get_screensize (&_rl_screenwidth, &_rl_screenheight); |
384 | _rl_screenwidth--; | |
bb70624e JA |
385 | #else /* !__EMX__ */ |
386 | _rl_get_screen_size (tty, 0); | |
387 | #endif /* !__EMX__ */ | |
388 | ||
389 | /* Defaults. */ | |
28ef6c31 | 390 | if (_rl_screenwidth <= 0 || _rl_screenheight <= 0) |
bb70624e | 391 | { |
28ef6c31 JA |
392 | _rl_screenwidth = 79; |
393 | _rl_screenheight = 24; | |
bb70624e JA |
394 | } |
395 | ||
396 | /* Everything below here is used by the redisplay code (tputs). */ | |
28ef6c31 JA |
397 | _rl_screenchars = _rl_screenwidth * _rl_screenheight; |
398 | _rl_term_cr = "\r"; | |
399 | _rl_term_im = _rl_term_ei = _rl_term_ic = _rl_term_IC = (char *)NULL; | |
400 | _rl_term_up = _rl_term_dc = _rl_term_DC = _rl_visible_bell = (char *)NULL; | |
401 | _rl_term_ku = _rl_term_kd = _rl_term_kl = _rl_term_kr = (char *)NULL; | |
402 | _rl_term_mm = _rl_term_mo = (char *)NULL; | |
ccc6cda3 JA |
403 | #if defined (HACK_TERMCAP_MOTION) |
404 | term_forward_char = (char *)NULL; | |
405 | #endif | |
28ef6c31 | 406 | _rl_terminal_can_insert = term_has_meta = 0; |
bb70624e JA |
407 | |
408 | /* Reasonable defaults for tgoto(). Readline currently only uses | |
28ef6c31 | 409 | tgoto if _rl_term_IC or _rl_term_DC is defined, but just in case we |
bb70624e JA |
410 | change that later... */ |
411 | PC = '\0'; | |
28ef6c31 JA |
412 | BC = _rl_term_backspace = "\b"; |
413 | UP = _rl_term_up; | |
bb70624e | 414 | |
ccc6cda3 JA |
415 | return 0; |
416 | } | |
417 | ||
418 | get_term_capabilities (&buffer); | |
419 | ||
420 | /* Set up the variables that the termcap library expects the application | |
421 | to provide. */ | |
28ef6c31 JA |
422 | PC = _rl_term_pc ? *_rl_term_pc : 0; |
423 | BC = _rl_term_backspace; | |
424 | UP = _rl_term_up; | |
ccc6cda3 | 425 | |
28ef6c31 JA |
426 | if (!_rl_term_cr) |
427 | _rl_term_cr = "\r"; | |
ccc6cda3 | 428 | |
ccc6cda3 JA |
429 | _rl_term_autowrap = tgetflag ("am") && tgetflag ("xn"); |
430 | ||
431 | _rl_get_screen_size (tty, 0); | |
432 | ||
433 | /* "An application program can assume that the terminal can do | |
434 | character insertion if *any one of* the capabilities `IC', | |
435 | `im', `ic' or `ip' is provided." But we can't do anything if | |
436 | only `ip' is provided, so... */ | |
28ef6c31 | 437 | _rl_terminal_can_insert = (_rl_term_IC || _rl_term_im || _rl_term_ic); |
ccc6cda3 JA |
438 | |
439 | /* Check to see if this terminal has a meta key and clear the capability | |
440 | variables if there is none. */ | |
441 | term_has_meta = (tgetflag ("km") || tgetflag ("MT")); | |
442 | if (!term_has_meta) | |
28ef6c31 | 443 | _rl_term_mm = _rl_term_mo = (char *)NULL; |
ccc6cda3 JA |
444 | |
445 | /* Attempt to find and bind the arrow keys. Do not override already | |
446 | bound keys in an overzealous attempt, however. */ | |
447 | xkeymap = _rl_keymap; | |
448 | ||
449 | _rl_keymap = emacs_standard_keymap; | |
28ef6c31 JA |
450 | _rl_bind_if_unbound (_rl_term_ku, rl_get_previous_history); |
451 | _rl_bind_if_unbound (_rl_term_kd, rl_get_next_history); | |
452 | _rl_bind_if_unbound (_rl_term_kr, rl_forward); | |
453 | _rl_bind_if_unbound (_rl_term_kl, rl_backward); | |
ccc6cda3 | 454 | |
28ef6c31 JA |
455 | _rl_bind_if_unbound (_rl_term_kh, rl_beg_of_line); /* Home */ |
456 | _rl_bind_if_unbound (_rl_term_kH, rl_end_of_line); /* End */ | |
ccc6cda3 JA |
457 | |
458 | #if defined (VI_MODE) | |
459 | _rl_keymap = vi_movement_keymap; | |
28ef6c31 JA |
460 | _rl_bind_if_unbound (_rl_term_ku, rl_get_previous_history); |
461 | _rl_bind_if_unbound (_rl_term_kd, rl_get_next_history); | |
462 | _rl_bind_if_unbound (_rl_term_kr, rl_forward); | |
463 | _rl_bind_if_unbound (_rl_term_kl, rl_backward); | |
ccc6cda3 | 464 | |
28ef6c31 JA |
465 | _rl_bind_if_unbound (_rl_term_kh, rl_beg_of_line); /* Home */ |
466 | _rl_bind_if_unbound (_rl_term_kH, rl_end_of_line); /* End */ | |
ccc6cda3 JA |
467 | #endif /* VI_MODE */ |
468 | ||
469 | _rl_keymap = xkeymap; | |
470 | ||
ccc6cda3 JA |
471 | return 0; |
472 | } | |
473 | ||
474 | char * | |
475 | rl_get_termcap (cap) | |
28ef6c31 | 476 | const char *cap; |
ccc6cda3 JA |
477 | { |
478 | register int i; | |
479 | ||
480 | if (tcap_initialized == 0) | |
481 | return ((char *)NULL); | |
482 | for (i = 0; i < NUM_TC_STRINGS; i++) | |
483 | { | |
484 | if (tc_strings[i].tc_var[0] == cap[0] && strcmp (tc_strings[i].tc_var, cap) == 0) | |
485 | return *(tc_strings[i].tc_value); | |
486 | } | |
487 | return ((char *)NULL); | |
488 | } | |
489 | ||
d166f048 JA |
490 | /* Re-initialize the terminal considering that the TERM/TERMCAP variable |
491 | has changed. */ | |
492 | int | |
493 | rl_reset_terminal (terminal_name) | |
28ef6c31 | 494 | const char *terminal_name; |
d166f048 JA |
495 | { |
496 | _rl_init_terminal_io (terminal_name); | |
497 | return 0; | |
498 | } | |
499 | ||
ccc6cda3 | 500 | /* A function for the use of tputs () */ |
cce855bc JA |
501 | #ifdef _MINIX |
502 | void | |
503 | _rl_output_character_function (c) | |
504 | int c; | |
505 | { | |
506 | putc (c, _rl_out_stream); | |
507 | } | |
508 | #else /* !_MINIX */ | |
ccc6cda3 JA |
509 | int |
510 | _rl_output_character_function (c) | |
511 | int c; | |
512 | { | |
513 | return putc (c, _rl_out_stream); | |
514 | } | |
cce855bc | 515 | #endif /* !_MINIX */ |
bb70624e | 516 | |
ccc6cda3 JA |
517 | /* Write COUNT characters from STRING to the output stream. */ |
518 | void | |
519 | _rl_output_some_chars (string, count) | |
28ef6c31 | 520 | const char *string; |
ccc6cda3 JA |
521 | int count; |
522 | { | |
523 | fwrite (string, 1, count, _rl_out_stream); | |
524 | } | |
525 | ||
526 | /* Move the cursor back. */ | |
527 | int | |
528 | _rl_backspace (count) | |
529 | int count; | |
530 | { | |
531 | register int i; | |
532 | ||
28ef6c31 | 533 | if (_rl_term_backspace) |
ccc6cda3 | 534 | for (i = 0; i < count; i++) |
28ef6c31 | 535 | tputs (_rl_term_backspace, 1, _rl_output_character_function); |
ccc6cda3 | 536 | else |
ccc6cda3 JA |
537 | for (i = 0; i < count; i++) |
538 | putc ('\b', _rl_out_stream); | |
539 | return 0; | |
540 | } | |
541 | ||
542 | /* Move to the start of the next line. */ | |
543 | int | |
28ef6c31 | 544 | rl_crlf () |
ccc6cda3 JA |
545 | { |
546 | #if defined (NEW_TTY_DRIVER) | |
28ef6c31 JA |
547 | if (_rl_term_cr) |
548 | tputs (_rl_term_cr, 1, _rl_output_character_function); | |
ccc6cda3 JA |
549 | #endif /* NEW_TTY_DRIVER */ |
550 | putc ('\n', _rl_out_stream); | |
551 | return 0; | |
552 | } | |
553 | ||
554 | /* Ring the terminal bell. */ | |
555 | int | |
28ef6c31 | 556 | rl_ding () |
ccc6cda3 JA |
557 | { |
558 | if (readline_echoing_p) | |
559 | { | |
ccc6cda3 JA |
560 | switch (_rl_bell_preference) |
561 | { | |
562 | case NO_BELL: | |
563 | default: | |
564 | break; | |
565 | case VISIBLE_BELL: | |
28ef6c31 | 566 | if (_rl_visible_bell) |
ccc6cda3 | 567 | { |
28ef6c31 | 568 | tputs (_rl_visible_bell, 1, _rl_output_character_function); |
ccc6cda3 JA |
569 | break; |
570 | } | |
571 | /* FALLTHROUGH */ | |
572 | case AUDIBLE_BELL: | |
573 | fprintf (stderr, "\007"); | |
574 | fflush (stderr); | |
575 | break; | |
576 | } | |
ccc6cda3 JA |
577 | return (0); |
578 | } | |
579 | return (-1); | |
580 | } | |
581 | ||
582 | /* **************************************************************** */ | |
583 | /* */ | |
584 | /* Controlling the Meta Key and Keypad */ | |
585 | /* */ | |
586 | /* **************************************************************** */ | |
587 | ||
d166f048 | 588 | void |
ccc6cda3 JA |
589 | _rl_enable_meta_key () |
590 | { | |
bb70624e | 591 | #if !defined (__DJGPP__) |
28ef6c31 JA |
592 | if (term_has_meta && _rl_term_mm) |
593 | tputs (_rl_term_mm, 1, _rl_output_character_function); | |
bb70624e | 594 | #endif |
ccc6cda3 JA |
595 | } |
596 | ||
597 | void | |
598 | _rl_control_keypad (on) | |
599 | int on; | |
600 | { | |
bb70624e | 601 | #if !defined (__DJGPP__) |
28ef6c31 JA |
602 | if (on && _rl_term_ks) |
603 | tputs (_rl_term_ks, 1, _rl_output_character_function); | |
604 | else if (!on && _rl_term_ke) | |
605 | tputs (_rl_term_ke, 1, _rl_output_character_function); | |
bb70624e | 606 | #endif |
ccc6cda3 | 607 | } |