Commit | Line | Data |
---|---|---|
d284f58f | 1 | /* Terminal control module for terminals described by TERMCAP |
0b5538bd | 2 | Copyright (C) 1985, 1986, 1987, 1993, 1994, 1995, 1998, 2000, 2001, |
aaef169d | 3 | 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc. |
08a24c47 JB |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
4746118a | 9 | the Free Software Foundation; either version 2, or (at your option) |
08a24c47 JB |
10 | any later version. |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
4fc5845f LK |
19 | the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
20 | Boston, MA 02110-1301, USA. */ | |
08a24c47 | 21 | |
d284f58f | 22 | /* New redisplay, TTY faces by Gerd Moellmann <gerd@gnu.org>. */ |
08a24c47 | 23 | |
565620a5 | 24 | #include <config.h> |
08a24c47 JB |
25 | #include <stdio.h> |
26 | #include <ctype.h> | |
a168702a | 27 | #include <string.h> |
59b3194c | 28 | #include <errno.h> |
28d440ab | 29 | #include <sys/file.h> |
0c72d684 | 30 | #include <unistd.h> /* For isatty. */ |
67ad74df KL |
31 | |
32 | #if HAVE_TERMIOS_H | |
33 | #include <termios.h> /* For TIOCNOTTY. */ | |
34 | #endif | |
03a1d6bd KL |
35 | |
36 | #include <signal.h> | |
0c72d684 | 37 | |
9628b887 | 38 | #include "lisp.h" |
08a24c47 JB |
39 | #include "termchar.h" |
40 | #include "termopts.h" | |
a4decb7f KH |
41 | #include "charset.h" |
42 | #include "coding.h" | |
2538fae4 | 43 | #include "keyboard.h" |
ff11dfa1 | 44 | #include "frame.h" |
08a24c47 JB |
45 | #include "disptab.h" |
46 | #include "termhooks.h" | |
dfcf069d | 47 | #include "dispextern.h" |
a168702a | 48 | #include "window.h" |
8feddab4 | 49 | #include "keymap.h" |
03a1d6bd KL |
50 | #include "syssignal.h" |
51 | #include "systty.h" | |
a168702a | 52 | |
ff23e1dd GM |
53 | /* For now, don't try to include termcap.h. On some systems, |
54 | configure finds a non-standard termcap.h that the main build | |
55 | won't find. */ | |
56 | ||
57 | #if defined HAVE_TERMCAP_H && 0 | |
b0f61f15 | 58 | #include <termcap.h> |
46d1b2bc DL |
59 | #else |
60 | extern void tputs P_ ((const char *, int, int (*)(int))); | |
61 | extern int tgetent P_ ((char *, const char *)); | |
62 | extern int tgetflag P_ ((char *id)); | |
63 | extern int tgetnum P_ ((char *id)); | |
b0f61f15 GM |
64 | #endif |
65 | ||
eccec691 | 66 | #include "cm.h" |
dfcf069d AS |
67 | #ifdef HAVE_X_WINDOWS |
68 | #include "xterm.h" | |
69 | #endif | |
e0f712ba | 70 | #ifdef MAC_OS |
1a578e9b AC |
71 | #include "macterm.h" |
72 | #endif | |
c8951b18 | 73 | |
28d440ab KL |
74 | #ifndef O_RDWR |
75 | #define O_RDWR 2 | |
76 | #endif | |
77 | ||
0c72d684 KL |
78 | #ifndef O_NOCTTY |
79 | #define O_NOCTTY 0 | |
80 | #endif | |
81 | ||
ed8dad6b | 82 | static void tty_set_scroll_region P_ ((struct frame *f, int start, int stop)); |
a168702a GM |
83 | static void turn_on_face P_ ((struct frame *, int face_id)); |
84 | static void turn_off_face P_ ((struct frame *, int face_id)); | |
28d7d09f KL |
85 | static void tty_show_cursor P_ ((struct tty_display_info *)); |
86 | static void tty_hide_cursor P_ ((struct tty_display_info *)); | |
ed8dad6b | 87 | static void tty_background_highlight P_ ((struct tty_display_info *tty)); |
4a665758 KL |
88 | static void clear_tty_hooks P_ ((struct terminal *terminal)); |
89 | static void set_tty_hooks P_ ((struct terminal *terminal)); | |
ed8dad6b | 90 | static void dissociate_if_controlling_tty P_ ((int fd)); |
6ed8eeff | 91 | static void delete_tty P_ ((struct terminal *)); |
a168702a | 92 | |
6548cf00 KL |
93 | #define OUTPUT(tty, a) \ |
94 | emacs_tputs ((tty), a, \ | |
95 | (int) (FRAME_LINES (XFRAME (selected_frame)) \ | |
96 | - curY (tty)), \ | |
97 | cmputc) | |
98 | ||
28d440ab KL |
99 | #define OUTPUT1(tty, a) emacs_tputs ((tty), a, 1, cmputc) |
100 | #define OUTPUTL(tty, a, lines) emacs_tputs ((tty), a, lines, cmputc) | |
a168702a | 101 | |
28d440ab | 102 | #define OUTPUT_IF(tty, a) \ |
6548cf00 KL |
103 | do { \ |
104 | if (a) \ | |
105 | emacs_tputs ((tty), a, \ | |
106 | (int) (FRAME_LINES (XFRAME (selected_frame)) \ | |
107 | - curY (tty) ), \ | |
108 | cmputc); \ | |
109 | } while (0) | |
177c0ea7 | 110 | |
28d440ab | 111 | #define OUTPUT1_IF(tty, a) do { if (a) emacs_tputs ((tty), a, 1, cmputc); } while (0) |
08a24c47 | 112 | |
b58cb614 | 113 | /* If true, use "vs", otherwise use "ve" to make the cursor visible. */ |
177c0ea7 | 114 | |
b58cb614 | 115 | static int visible_cursor; |
08a24c47 | 116 | |
f46c2aff KS |
117 | /* Display space properties */ |
118 | ||
119 | extern Lisp_Object Qspace, QCalign_to, QCwidth; | |
120 | ||
0b0d3e0b KL |
121 | /* Functions to call after suspending a tty. */ |
122 | Lisp_Object Vsuspend_tty_functions; | |
123 | ||
124 | /* Functions to call after resuming a tty. */ | |
125 | Lisp_Object Vresume_tty_functions; | |
126 | ||
428a555e | 127 | /* Chain of all tty device parameters. */ |
28d7d09f | 128 | struct tty_display_info *tty_list; |
08a24c47 | 129 | |
fca177d4 KL |
130 | /* Nonzero means no need to redraw the entire frame on resuming a |
131 | suspended Emacs. This is useful on terminals with multiple | |
132 | pages, where one page is used for Emacs and another for all | |
133 | else. */ | |
08a24c47 | 134 | int no_redraw_on_reenter; |
819b8f00 | 135 | |
4e6ba4a4 GM |
136 | /* Meaning of bits in no_color_video. Each bit set means that the |
137 | corresponding attribute cannot be combined with colors. */ | |
138 | ||
139 | enum no_color_bit | |
140 | { | |
141 | NC_STANDOUT = 1 << 0, | |
142 | NC_UNDERLINE = 1 << 1, | |
143 | NC_REVERSE = 1 << 2, | |
144 | NC_BLINK = 1 << 3, | |
145 | NC_DIM = 1 << 4, | |
146 | NC_BOLD = 1 << 5, | |
147 | NC_INVIS = 1 << 6, | |
148 | NC_PROTECT = 1 << 7, | |
149 | NC_ALT_CHARSET = 1 << 8 | |
150 | }; | |
151 | ||
08a24c47 JB |
152 | /* internal state */ |
153 | ||
8dd0c7cb | 154 | /* The largest frame width in any call to calculate_costs. */ |
a168702a | 155 | |
9882535b | 156 | int max_frame_cols; |
a168702a | 157 | |
8dd0c7cb | 158 | /* The largest frame height in any call to calculate_costs. */ |
a168702a | 159 | |
9882535b | 160 | int max_frame_lines; |
8dd0c7cb | 161 | |
0c72d684 KL |
162 | /* Non-zero if we have dropped our controlling tty and therefore |
163 | should not open a frame on stdout. */ | |
164 | static int no_controlling_tty; | |
165 | ||
07c57952 | 166 | /* Provided for lisp packages. */ |
a168702a | 167 | |
07c57952 KH |
168 | static int system_uses_terminfo; |
169 | ||
08a24c47 | 170 | char *tparam (); |
e4bfb3b6 RS |
171 | |
172 | extern char *tgetstr (); | |
08a24c47 | 173 | \f |
cb28b9c2 | 174 | |
1a89b7c6 AI |
175 | #ifdef WINDOWSNT |
176 | /* We aren't X windows, but we aren't termcap either. This makes me | |
177 | uncertain as to what value to use for frame.output_method. For | |
178 | this file, we'll define FRAME_TERMCAP_P to be zero so that our | |
179 | output hooks get called instead of the termcap functions. Probably | |
180 | the best long-term solution is to define an output_windows_nt... */ | |
181 | ||
182 | #undef FRAME_TERMCAP_P | |
183 | #define FRAME_TERMCAP_P(_f_) 0 | |
184 | #endif /* WINDOWSNT */ | |
185 | ||
08a24c47 | 186 | |
da8e1115 KL |
187 | /* Ring the bell on a tty. */ |
188 | ||
ed8dad6b | 189 | static void |
385ed61f | 190 | tty_ring_bell (struct frame *f) |
3224dac1 | 191 | { |
3224dac1 KL |
192 | struct tty_display_info *tty = FRAME_TTY (f); |
193 | ||
b6660415 KL |
194 | if (tty->output) |
195 | { | |
196 | OUTPUT (tty, (tty->TS_visible_bell && visible_bell | |
197 | ? tty->TS_visible_bell | |
198 | : tty->TS_bell)); | |
199 | fflush (tty->output); | |
200 | } | |
3224dac1 KL |
201 | } |
202 | ||
da8e1115 KL |
203 | /* Set up termcap modes for Emacs. */ |
204 | ||
205 | void | |
6ed8eeff | 206 | tty_set_terminal_modes (struct terminal *terminal) |
fca177d4 | 207 | { |
6ed8eeff | 208 | struct tty_display_info *tty = terminal->display_info.tty; |
3224dac1 | 209 | |
0b0d3e0b KL |
210 | if (tty->output) |
211 | { | |
fbf34973 KL |
212 | if (tty->TS_termcap_modes) |
213 | OUTPUT (tty, tty->TS_termcap_modes); | |
214 | else | |
215 | { | |
216 | /* Output enough newlines to scroll all the old screen contents | |
217 | off the screen, so it won't be overwritten and lost. */ | |
218 | int i; | |
a3c07f68 | 219 | current_tty = tty; |
fbf34973 | 220 | for (i = 0; i < FRAME_LINES (XFRAME (selected_frame)); i++) |
a3c07f68 | 221 | cmputc ('\n'); |
fbf34973 KL |
222 | } |
223 | ||
0b0d3e0b | 224 | OUTPUT_IF (tty, tty->TS_termcap_modes); |
b58cb614 | 225 | OUTPUT_IF (tty, visible_cursor ? tty->TS_cursor_visible : tty->TS_cursor_normal); |
0b0d3e0b KL |
226 | OUTPUT_IF (tty, tty->TS_keypad_mode); |
227 | losecursor (tty); | |
2f98e6e3 | 228 | fflush (tty->output); |
0b0d3e0b | 229 | } |
fca177d4 KL |
230 | } |
231 | ||
da8e1115 KL |
232 | /* Reset termcap modes before exiting Emacs. */ |
233 | ||
234 | void | |
6ed8eeff | 235 | tty_reset_terminal_modes (struct terminal *terminal) |
fca177d4 | 236 | { |
6ed8eeff | 237 | struct tty_display_info *tty = terminal->display_info.tty; |
0b0d3e0b KL |
238 | |
239 | if (tty->output) | |
240 | { | |
ed8dad6b KL |
241 | tty_turn_off_highlight (tty); |
242 | tty_turn_off_insert (tty); | |
0b0d3e0b KL |
243 | OUTPUT_IF (tty, tty->TS_end_keypad_mode); |
244 | OUTPUT_IF (tty, tty->TS_cursor_normal); | |
245 | OUTPUT_IF (tty, tty->TS_end_termcap_modes); | |
246 | OUTPUT_IF (tty, tty->TS_orig_pair); | |
247 | /* Output raw CR so kernel can track the cursor hpos. */ | |
248 | current_tty = tty; | |
249 | cmputc ('\r'); | |
2f98e6e3 | 250 | fflush (tty->output); |
0b0d3e0b | 251 | } |
fca177d4 KL |
252 | } |
253 | ||
6ed8eeff | 254 | /* Flag the end of a display update on a termcap terminal. */ |
da8e1115 | 255 | |
ed8dad6b | 256 | static void |
3224dac1 KL |
257 | tty_update_end (struct frame *f) |
258 | { | |
259 | struct tty_display_info *tty = FRAME_TTY (f); | |
260 | ||
261 | if (!XWINDOW (selected_window)->cursor_off_p) | |
262 | tty_show_cursor (tty); | |
ed8dad6b KL |
263 | tty_turn_off_insert (tty); |
264 | tty_background_highlight (tty); | |
3224dac1 KL |
265 | } |
266 | ||
da8e1115 KL |
267 | /* The implementation of set_terminal_window for termcap frames. */ |
268 | ||
ed8dad6b | 269 | static void |
385ed61f | 270 | tty_set_terminal_window (struct frame *f, int size) |
3224dac1 | 271 | { |
3224dac1 KL |
272 | struct tty_display_info *tty = FRAME_TTY (f); |
273 | ||
274 | tty->specified_window = size ? size : FRAME_LINES (f); | |
275 | if (FRAME_SCROLL_REGION_OK (f)) | |
ed8dad6b | 276 | tty_set_scroll_region (f, 0, tty->specified_window); |
08a24c47 JB |
277 | } |
278 | ||
ed8dad6b KL |
279 | static void |
280 | tty_set_scroll_region (struct frame *f, int start, int stop) | |
08a24c47 JB |
281 | { |
282 | char *buf; | |
28d7d09f | 283 | struct tty_display_info *tty = FRAME_TTY (f); |
177c0ea7 | 284 | |
fca177d4 KL |
285 | if (tty->TS_set_scroll_region) |
286 | buf = tparam (tty->TS_set_scroll_region, 0, 0, start, stop - 1); | |
287 | else if (tty->TS_set_scroll_region_1) | |
288 | buf = tparam (tty->TS_set_scroll_region_1, 0, 0, | |
ed02974b KL |
289 | FRAME_LINES (f), start, |
290 | FRAME_LINES (f) - stop, | |
291 | FRAME_LINES (f)); | |
08a24c47 | 292 | else |
fca177d4 | 293 | buf = tparam (tty->TS_set_window, 0, 0, start, 0, stop, FRAME_COLS (f)); |
177c0ea7 | 294 | |
6548cf00 | 295 | OUTPUT (tty, buf); |
9ac0d9e0 | 296 | xfree (buf); |
6548cf00 | 297 | losecursor (tty); |
08a24c47 | 298 | } |
d284f58f | 299 | |
08a24c47 | 300 | \f |
d284f58f | 301 | static void |
ed8dad6b | 302 | tty_turn_on_insert (struct tty_display_info *tty) |
08a24c47 | 303 | { |
fca177d4 KL |
304 | if (!tty->insert_mode) |
305 | OUTPUT (tty, tty->TS_insert_mode); | |
306 | tty->insert_mode = 1; | |
08a24c47 JB |
307 | } |
308 | ||
dfcf069d | 309 | void |
ed8dad6b | 310 | tty_turn_off_insert (struct tty_display_info *tty) |
08a24c47 | 311 | { |
fca177d4 KL |
312 | if (tty->insert_mode) |
313 | OUTPUT (tty, tty->TS_end_insert_mode); | |
314 | tty->insert_mode = 0; | |
08a24c47 JB |
315 | } |
316 | \f | |
54800acb | 317 | /* Handle highlighting. */ |
08a24c47 | 318 | |
dfcf069d | 319 | void |
ed8dad6b | 320 | tty_turn_off_highlight (struct tty_display_info *tty) |
08a24c47 | 321 | { |
fca177d4 KL |
322 | if (tty->standout_mode) |
323 | OUTPUT_IF (tty, tty->TS_end_standout_mode); | |
324 | tty->standout_mode = 0; | |
08a24c47 JB |
325 | } |
326 | ||
d284f58f | 327 | static void |
ed8dad6b | 328 | tty_turn_on_highlight (struct tty_display_info *tty) |
08a24c47 | 329 | { |
fca177d4 KL |
330 | if (!tty->standout_mode) |
331 | OUTPUT_IF (tty, tty->TS_standout_mode); | |
332 | tty->standout_mode = 1; | |
08a24c47 JB |
333 | } |
334 | ||
86a7d192 | 335 | static void |
ed8dad6b | 336 | tty_toggle_highlight (struct tty_display_info *tty) |
86a7d192 | 337 | { |
fca177d4 | 338 | if (tty->standout_mode) |
ed8dad6b | 339 | tty_turn_off_highlight (tty); |
86a7d192 | 340 | else |
ed8dad6b | 341 | tty_turn_on_highlight (tty); |
86a7d192 GM |
342 | } |
343 | ||
a168702a GM |
344 | |
345 | /* Make cursor invisible. */ | |
346 | ||
347 | static void | |
28d7d09f | 348 | tty_hide_cursor (struct tty_display_info *tty) |
a168702a | 349 | { |
fca177d4 | 350 | if (tty->cursor_hidden == 0) |
d284f58f | 351 | { |
fca177d4 KL |
352 | tty->cursor_hidden = 1; |
353 | OUTPUT_IF (tty, tty->TS_cursor_invisible); | |
d284f58f | 354 | } |
a168702a GM |
355 | } |
356 | ||
357 | ||
358 | /* Ensure that cursor is visible. */ | |
359 | ||
360 | static void | |
28d7d09f | 361 | tty_show_cursor (struct tty_display_info *tty) |
a168702a | 362 | { |
fca177d4 | 363 | if (tty->cursor_hidden) |
d284f58f | 364 | { |
fca177d4 KL |
365 | tty->cursor_hidden = 0; |
366 | OUTPUT_IF (tty, tty->TS_cursor_normal); | |
0db017c0 | 367 | if (visible_cursor) |
b58cb614 | 368 | OUTPUT_IF (tty, tty->TS_cursor_visible); |
d284f58f | 369 | } |
a168702a GM |
370 | } |
371 | ||
372 | ||
08a24c47 JB |
373 | /* Set standout mode to the state it should be in for |
374 | empty space inside windows. What this is, | |
375 | depends on the user option inverse-video. */ | |
376 | ||
ed8dad6b KL |
377 | static void |
378 | tty_background_highlight (struct tty_display_info *tty) | |
08a24c47 | 379 | { |
08a24c47 | 380 | if (inverse_video) |
ed8dad6b | 381 | tty_turn_on_highlight (tty); |
08a24c47 | 382 | else |
ed8dad6b | 383 | tty_turn_off_highlight (tty); |
08a24c47 JB |
384 | } |
385 | ||
386 | /* Set standout mode to the mode specified for the text to be output. */ | |
387 | ||
dfcf069d | 388 | static void |
ed8dad6b | 389 | tty_highlight_if_desired (struct tty_display_info *tty) |
08a24c47 | 390 | { |
8ede64a5 | 391 | if (inverse_video) |
ed8dad6b | 392 | tty_turn_on_highlight (tty); |
8ede64a5 | 393 | else |
ed8dad6b | 394 | tty_turn_off_highlight (tty); |
08a24c47 JB |
395 | } |
396 | \f | |
397 | ||
a168702a GM |
398 | /* Move cursor to row/column position VPOS/HPOS. HPOS/VPOS are |
399 | frame-relative coordinates. */ | |
08a24c47 | 400 | |
ed8dad6b | 401 | static void |
385ed61f | 402 | tty_cursor_to (struct frame *f, int vpos, int hpos) |
3224dac1 | 403 | { |
3224dac1 | 404 | struct tty_display_info *tty = FRAME_TTY (f); |
6548cf00 | 405 | |
36cae867 KH |
406 | /* Detect the case where we are called from reset_sys_modes |
407 | and the costs have never been calculated. Do nothing. */ | |
fca177d4 | 408 | if (! tty->costs_set) |
36cae867 KH |
409 | return; |
410 | ||
6548cf00 KL |
411 | if (curY (tty) == vpos |
412 | && curX (tty) == hpos) | |
08a24c47 | 413 | return; |
fca177d4 | 414 | if (!tty->TF_standout_motion) |
ed8dad6b | 415 | tty_background_highlight (tty); |
fca177d4 | 416 | if (!tty->TF_insmode_motion) |
ed8dad6b | 417 | tty_turn_off_insert (tty); |
6548cf00 | 418 | cmgoto (tty, vpos, hpos); |
08a24c47 JB |
419 | } |
420 | ||
421 | /* Similar but don't take any account of the wasted characters. */ | |
422 | ||
ed8dad6b | 423 | static void |
385ed61f | 424 | tty_raw_cursor_to (struct frame *f, int row, int col) |
3224dac1 | 425 | { |
3224dac1 KL |
426 | struct tty_display_info *tty = FRAME_TTY (f); |
427 | ||
6548cf00 KL |
428 | if (curY (tty) == row |
429 | && curX (tty) == col) | |
08a24c47 | 430 | return; |
fca177d4 | 431 | if (!tty->TF_standout_motion) |
ed8dad6b | 432 | tty_background_highlight (tty); |
fca177d4 | 433 | if (!tty->TF_insmode_motion) |
ed8dad6b | 434 | tty_turn_off_insert (tty); |
6548cf00 | 435 | cmgoto (tty, row, col); |
08a24c47 JB |
436 | } |
437 | \f | |
438 | /* Erase operations */ | |
439 | ||
da8e1115 KL |
440 | /* Clear from cursor to end of frame on a termcap device. */ |
441 | ||
ed8dad6b | 442 | static void |
385ed61f | 443 | tty_clear_to_end (struct frame *f) |
3224dac1 KL |
444 | { |
445 | register int i; | |
3224dac1 KL |
446 | struct tty_display_info *tty = FRAME_TTY (f); |
447 | ||
fca177d4 | 448 | if (tty->TS_clr_to_bottom) |
08a24c47 | 449 | { |
ed8dad6b | 450 | tty_background_highlight (tty); |
fca177d4 | 451 | OUTPUT (tty, tty->TS_clr_to_bottom); |
08a24c47 JB |
452 | } |
453 | else | |
454 | { | |
6548cf00 | 455 | for (i = curY (tty); i < FRAME_LINES (f); i++) |
08a24c47 | 456 | { |
385ed61f KL |
457 | cursor_to (f, i, 0); |
458 | clear_end_of_line (f, FRAME_COLS (f)); | |
08a24c47 JB |
459 | } |
460 | } | |
461 | } | |
462 | ||
da8e1115 KL |
463 | /* Clear an entire termcap frame. */ |
464 | ||
ed8dad6b | 465 | static void |
385ed61f | 466 | tty_clear_frame (struct frame *f) |
3224dac1 | 467 | { |
3224dac1 KL |
468 | struct tty_display_info *tty = FRAME_TTY (f); |
469 | ||
fca177d4 | 470 | if (tty->TS_clr_frame) |
08a24c47 | 471 | { |
ed8dad6b | 472 | tty_background_highlight (tty); |
fca177d4 | 473 | OUTPUT (tty, tty->TS_clr_frame); |
6548cf00 | 474 | cmat (tty, 0, 0); |
08a24c47 JB |
475 | } |
476 | else | |
477 | { | |
385ed61f KL |
478 | cursor_to (f, 0, 0); |
479 | clear_to_end (f); | |
08a24c47 JB |
480 | } |
481 | } | |
482 | ||
da8e1115 KL |
483 | /* An implementation of clear_end_of_line for termcap frames. |
484 | ||
485 | Note that the cursor may be moved, on terminals lacking a `ce' string. */ | |
486 | ||
ed8dad6b | 487 | static void |
385ed61f | 488 | tty_clear_end_of_line (struct frame *f, int first_unused_hpos) |
0a125897 KL |
489 | { |
490 | register int i; | |
3224dac1 KL |
491 | struct tty_display_info *tty = FRAME_TTY (f); |
492 | ||
36cae867 KH |
493 | /* Detect the case where we are called from reset_sys_modes |
494 | and the costs have never been calculated. Do nothing. */ | |
fca177d4 | 495 | if (! tty->costs_set) |
36cae867 KH |
496 | return; |
497 | ||
6548cf00 | 498 | if (curX (tty) >= first_unused_hpos) |
08a24c47 | 499 | return; |
ed8dad6b | 500 | tty_background_highlight (tty); |
fca177d4 | 501 | if (tty->TS_clr_line) |
08a24c47 | 502 | { |
fca177d4 | 503 | OUTPUT1 (tty, tty->TS_clr_line); |
08a24c47 JB |
504 | } |
505 | else | |
506 | { /* have to do it the hard way */ | |
ed8dad6b | 507 | tty_turn_off_insert (tty); |
08a24c47 | 508 | |
a168702a | 509 | /* Do not write in last row last col with Auto-wrap on. */ |
6548cf00 | 510 | if (AutoWrap (tty) |
0a125897 KL |
511 | && curY (tty) == FrameRows (tty) - 1 |
512 | && first_unused_hpos == FrameCols (tty)) | |
08a24c47 JB |
513 | first_unused_hpos--; |
514 | ||
6548cf00 | 515 | for (i = curX (tty); i < first_unused_hpos; i++) |
08a24c47 | 516 | { |
0b0d3e0b KL |
517 | if (tty->termscript) |
518 | fputc (' ', tty->termscript); | |
519 | fputc (' ', tty->output); | |
08a24c47 | 520 | } |
6548cf00 | 521 | cmplus (tty, first_unused_hpos - curX (tty)); |
08a24c47 JB |
522 | } |
523 | } | |
524 | \f | |
af645abf KH |
525 | /* Buffer to store the source and result of code conversion for terminal. */ |
526 | static unsigned char *encode_terminal_buf; | |
527 | /* Allocated size of the above buffer. */ | |
528 | static int encode_terminal_bufsize; | |
a4decb7f | 529 | |
af645abf KH |
530 | /* Encode SRC_LEN glyphs starting at SRC to terminal output codes. |
531 | Set CODING->produced to the byte-length of the resulting byte | |
532 | sequence, and return a pointer to that byte sequence. */ | |
a4decb7f | 533 | |
302db699 | 534 | unsigned char * |
af645abf | 535 | encode_terminal_code (src, src_len, coding) |
a168702a | 536 | struct glyph *src; |
a4decb7f | 537 | int src_len; |
af645abf | 538 | struct coding_system *coding; |
a4decb7f | 539 | { |
feef4f84 | 540 | struct glyph *src_end = src + src_len; |
085d5908 | 541 | register GLYPH g; |
af645abf KH |
542 | unsigned char *buf; |
543 | int nchars, nbytes, required; | |
a4decb7f KH |
544 | register int tlen = GLYPH_TABLE_LENGTH; |
545 | register Lisp_Object *tbase = GLYPH_TABLE_BASE; | |
6589fd67 | 546 | |
af645abf KH |
547 | /* Allocate sufficient size of buffer to store all characters in |
548 | multibyte-form. But, it may be enlarged on demand if | |
549 | Vglyph_table contains a string. */ | |
550 | required = MAX_MULTIBYTE_LENGTH * src_len; | |
551 | if (encode_terminal_bufsize < required) | |
552 | { | |
af645abf KH |
553 | if (encode_terminal_bufsize == 0) |
554 | encode_terminal_buf = xmalloc (required); | |
555 | else | |
556 | encode_terminal_buf = xrealloc (encode_terminal_buf, required); | |
d6d31e57 | 557 | encode_terminal_bufsize = required; |
af645abf | 558 | } |
a4decb7f | 559 | |
af645abf KH |
560 | buf = encode_terminal_buf; |
561 | nchars = 0; | |
a4decb7f KH |
562 | while (src < src_end) |
563 | { | |
a4decb7f | 564 | /* We must skip glyphs to be padded for a wide character. */ |
a168702a | 565 | if (! CHAR_GLYPH_PADDING_P (*src)) |
a4decb7f | 566 | { |
32de38e4 KH |
567 | g = GLYPH_FROM_CHAR_GLYPH (src[0]); |
568 | ||
569 | if (g < 0 || g >= tlen) | |
085d5908 | 570 | { |
32de38e4 | 571 | /* This glyph doesn't has an entry in Vglyph_table. */ |
af645abf KH |
572 | if (CHAR_VALID_P (src->u.ch, 0)) |
573 | buf += CHAR_STRING (src->u.ch, buf); | |
32de38e4 | 574 | else |
af645abf KH |
575 | *buf++ = SPACEGLYPH; |
576 | nchars++; | |
085d5908 | 577 | } |
32de38e4 | 578 | else |
a4decb7f | 579 | { |
32de38e4 | 580 | /* This glyph has an entry in Vglyph_table, |
a4decb7f KH |
581 | so process any alias before testing for simpleness. */ |
582 | GLYPH_FOLLOW_ALIASES (tbase, tlen, g); | |
32de38e4 KH |
583 | |
584 | if (GLYPH_SIMPLE_P (tbase, tlen, g)) | |
585 | { | |
af645abf KH |
586 | int c = FAST_GLYPH_CHAR (g); |
587 | ||
588 | if (CHAR_VALID_P (c, 0)) | |
589 | buf += CHAR_STRING (c, buf); | |
590 | else | |
591 | *buf++ = SPACEGLYPH; | |
592 | nchars++; | |
32de38e4 KH |
593 | } |
594 | else | |
595 | { | |
596 | /* We have a string in Vglyph_table. */ | |
af645abf KH |
597 | Lisp_Object string; |
598 | ||
599 | string = tbase[g]; | |
600 | if (! STRING_MULTIBYTE (string)) | |
601 | string = string_to_multibyte (string); | |
602 | nbytes = buf - encode_terminal_buf; | |
fd4a9f8f | 603 | if (encode_terminal_bufsize < nbytes + SBYTES (string)) |
af645abf KH |
604 | { |
605 | encode_terminal_bufsize = nbytes + SBYTES (string); | |
606 | encode_terminal_buf = xrealloc (encode_terminal_buf, | |
607 | encode_terminal_bufsize); | |
608 | buf = encode_terminal_buf + nbytes; | |
609 | } | |
610 | bcopy (SDATA (string), buf, SBYTES (string)); | |
611 | buf += SBYTES (string); | |
612 | nchars += SCHARS (string); | |
32de38e4 | 613 | } |
171d7f24 | 614 | } |
a4decb7f KH |
615 | } |
616 | src++; | |
617 | } | |
177c0ea7 | 618 | |
af645abf KH |
619 | nbytes = buf - encode_terminal_buf; |
620 | coding->src_multibyte = 1; | |
621 | coding->dst_multibyte = 0; | |
622 | if (SYMBOLP (coding->pre_write_conversion) | |
623 | && ! NILP (Ffboundp (coding->pre_write_conversion))) | |
624 | { | |
feef4f84 | 625 | run_pre_write_conversin_on_c_str (&encode_terminal_buf, |
af645abf KH |
626 | &encode_terminal_bufsize, |
627 | nchars, nbytes, coding); | |
628 | nchars = coding->produced_char; | |
629 | nbytes = coding->produced; | |
630 | } | |
631 | required = nbytes + encoding_buffer_size (coding, nbytes); | |
632 | if (encode_terminal_bufsize < required) | |
633 | { | |
634 | encode_terminal_bufsize = required; | |
635 | encode_terminal_buf = xrealloc (encode_terminal_buf, required); | |
636 | } | |
a4decb7f | 637 | |
af645abf KH |
638 | encode_coding (coding, encode_terminal_buf, encode_terminal_buf + nbytes, |
639 | nbytes, encode_terminal_bufsize - nbytes); | |
640 | return encode_terminal_buf + nbytes; | |
a4decb7f KH |
641 | } |
642 | ||
08a24c47 | 643 | |
da8e1115 KL |
644 | /* An implementation of write_glyphs for termcap frames. */ |
645 | ||
ed8dad6b | 646 | static void |
385ed61f | 647 | tty_write_glyphs (struct frame *f, struct glyph *string, int len) |
08a24c47 | 648 | { |
af645abf KH |
649 | unsigned char *conversion_buffer; |
650 | struct coding_system *coding; | |
08a24c47 | 651 | |
3224dac1 | 652 | struct tty_display_info *tty = FRAME_TTY (f); |
6548cf00 | 653 | |
ed8dad6b | 654 | tty_turn_off_insert (tty); |
fca177d4 | 655 | tty_hide_cursor (tty); |
08a24c47 | 656 | |
a168702a | 657 | /* Don't dare write in last column of bottom line, if Auto-Wrap, |
ff11dfa1 | 658 | since that would scroll the whole frame on some terminals. */ |
08a24c47 | 659 | |
6548cf00 KL |
660 | if (AutoWrap (tty) |
661 | && curY (tty) + 1 == FRAME_LINES (f) | |
662 | && (curX (tty) + len) == FRAME_COLS (f)) | |
08a24c47 | 663 | len --; |
a4decb7f KH |
664 | if (len <= 0) |
665 | return; | |
08a24c47 | 666 | |
6548cf00 | 667 | cmplus (tty, len); |
177c0ea7 | 668 | |
af645abf KH |
669 | /* If terminal_coding does any conversion, use it, otherwise use |
670 | safe_terminal_coding. We can't use CODING_REQUIRE_ENCODING here | |
671 | because it always return 1 if the member src_multibyte is 1. */ | |
fad2f685 KL |
672 | coding = (FRAME_TERMINAL_CODING (f)->common_flags & CODING_REQUIRE_ENCODING_MASK |
673 | ? FRAME_TERMINAL_CODING (f) : &safe_terminal_coding); | |
6589fd67 KH |
674 | /* The mode bit CODING_MODE_LAST_BLOCK should be set to 1 only at |
675 | the tail. */ | |
af645abf | 676 | coding->mode &= ~CODING_MODE_LAST_BLOCK; |
177c0ea7 | 677 | |
a4decb7f | 678 | while (len > 0) |
08a24c47 | 679 | { |
a168702a | 680 | /* Identify a run of glyphs with the same face. */ |
32de38e4 | 681 | int face_id = string->face_id; |
a168702a | 682 | int n; |
177c0ea7 | 683 | |
a168702a | 684 | for (n = 1; n < len; ++n) |
32de38e4 | 685 | if (string[n].face_id != face_id) |
a168702a GM |
686 | break; |
687 | ||
688 | /* Turn appearance modes of the face of the run on. */ | |
ed8dad6b | 689 | tty_highlight_if_desired (tty); |
a168702a GM |
690 | turn_on_face (f, face_id); |
691 | ||
af645abf KH |
692 | if (n == len) |
693 | /* This is the last run. */ | |
694 | coding->mode |= CODING_MODE_LAST_BLOCK; | |
695 | conversion_buffer = encode_terminal_code (string, n, coding); | |
696 | if (coding->produced > 0) | |
08a24c47 | 697 | { |
fad2f685 KL |
698 | fwrite (conversion_buffer, 1, coding->produced, tty->output); |
699 | if (ferror (tty->output)) | |
700 | clearerr (tty->output); | |
701 | if (tty->termscript) | |
702 | fwrite (conversion_buffer, 1, coding->produced, tty->termscript); | |
08a24c47 | 703 | } |
af645abf KH |
704 | len -= n; |
705 | string += n; | |
a168702a GM |
706 | |
707 | /* Turn appearance modes off. */ | |
708 | turn_off_face (f, face_id); | |
ed8dad6b | 709 | tty_turn_off_highlight (tty); |
a4decb7f | 710 | } |
177c0ea7 | 711 | |
6548cf00 | 712 | cmcheckmagic (tty); |
08a24c47 JB |
713 | } |
714 | ||
da8e1115 KL |
715 | /* An implementation of insert_glyphs for termcap frames. */ |
716 | ||
ed8dad6b | 717 | static void |
385ed61f | 718 | tty_insert_glyphs (struct frame *f, struct glyph *start, int len) |
3224dac1 KL |
719 | { |
720 | char *buf; | |
721 | struct glyph *glyph = NULL; | |
af645abf KH |
722 | unsigned char *conversion_buffer; |
723 | unsigned char space[1]; | |
724 | struct coding_system *coding; | |
3224dac1 KL |
725 | |
726 | struct tty_display_info *tty = FRAME_TTY (f); | |
08a24c47 | 727 | |
fca177d4 | 728 | if (tty->TS_ins_multi_chars) |
08a24c47 | 729 | { |
fca177d4 | 730 | buf = tparam (tty->TS_ins_multi_chars, 0, 0, len); |
6548cf00 | 731 | OUTPUT1 (tty, buf); |
9ac0d9e0 | 732 | xfree (buf); |
08a24c47 | 733 | if (start) |
385ed61f | 734 | write_glyphs (f, start, len); |
08a24c47 JB |
735 | return; |
736 | } | |
737 | ||
ed8dad6b | 738 | tty_turn_on_insert (tty); |
6548cf00 | 739 | cmplus (tty, len); |
af645abf KH |
740 | |
741 | if (! start) | |
742 | space[0] = SPACEGLYPH; | |
743 | ||
744 | /* If terminal_coding does any conversion, use it, otherwise use | |
745 | safe_terminal_coding. We can't use CODING_REQUIRE_ENCODING here | |
746 | because it always return 1 if the member src_multibyte is 1. */ | |
fad2f685 KL |
747 | coding = (FRAME_TERMINAL_CODING (f)->common_flags & CODING_REQUIRE_ENCODING_MASK |
748 | ? FRAME_TERMINAL_CODING (f) : &safe_terminal_coding); | |
af645abf KH |
749 | /* The mode bit CODING_MODE_LAST_BLOCK should be set to 1 only at |
750 | the tail. */ | |
751 | coding->mode &= ~CODING_MODE_LAST_BLOCK; | |
752 | ||
07109bf9 | 753 | while (len-- > 0) |
08a24c47 | 754 | { |
fca177d4 | 755 | OUTPUT1_IF (tty, tty->TS_ins_char); |
08a24c47 | 756 | if (!start) |
32de38e4 | 757 | { |
af645abf KH |
758 | conversion_buffer = space; |
759 | coding->produced = 1; | |
32de38e4 | 760 | } |
08a24c47 | 761 | else |
08a24c47 | 762 | { |
ed8dad6b | 763 | tty_highlight_if_desired (tty); |
32de38e4 | 764 | turn_on_face (f, start->face_id); |
816be8b8 | 765 | glyph = start; |
a168702a | 766 | ++start; |
a4decb7f KH |
767 | /* We must open sufficient space for a character which |
768 | occupies more than one column. */ | |
a168702a | 769 | while (len && CHAR_GLYPH_PADDING_P (*start)) |
a4decb7f | 770 | { |
fca177d4 | 771 | OUTPUT1_IF (tty, tty->TS_ins_char); |
a4decb7f KH |
772 | start++, len--; |
773 | } | |
a4decb7f | 774 | |
32de38e4 KH |
775 | if (len <= 0) |
776 | /* This is the last glyph. */ | |
af645abf | 777 | coding->mode |= CODING_MODE_LAST_BLOCK; |
32de38e4 | 778 | |
fad2f685 | 779 | conversion_buffer = encode_terminal_code (glyph, 1, coding); |
32de38e4 | 780 | } |
a4decb7f | 781 | |
af645abf | 782 | if (coding->produced > 0) |
08a24c47 | 783 | { |
fad2f685 | 784 | fwrite (conversion_buffer, 1, coding->produced, tty->output); |
0b0d3e0b KL |
785 | if (ferror (tty->output)) |
786 | clearerr (tty->output); | |
787 | if (tty->termscript) | |
fad2f685 | 788 | fwrite (conversion_buffer, 1, coding->produced, tty->termscript); |
08a24c47 JB |
789 | } |
790 | ||
fca177d4 | 791 | OUTPUT1_IF (tty, tty->TS_pad_inserted_char); |
32de38e4 | 792 | if (start) |
65aa5e85 GM |
793 | { |
794 | turn_off_face (f, glyph->face_id); | |
ed8dad6b | 795 | tty_turn_off_highlight (tty); |
65aa5e85 | 796 | } |
9a6b6f92 | 797 | } |
177c0ea7 | 798 | |
6548cf00 | 799 | cmcheckmagic (tty); |
08a24c47 JB |
800 | } |
801 | ||
da8e1115 KL |
802 | /* An implementation of delete_glyphs for termcap frames. */ |
803 | ||
ed8dad6b | 804 | static void |
385ed61f | 805 | tty_delete_glyphs (struct frame *f, int n) |
3224dac1 KL |
806 | { |
807 | char *buf; | |
808 | register int i; | |
3224dac1 KL |
809 | |
810 | struct tty_display_info *tty = FRAME_TTY (f); | |
6548cf00 | 811 | |
fca177d4 | 812 | if (tty->delete_in_insert_mode) |
08a24c47 | 813 | { |
ed8dad6b | 814 | tty_turn_on_insert (tty); |
08a24c47 JB |
815 | } |
816 | else | |
817 | { | |
ed8dad6b | 818 | tty_turn_off_insert (tty); |
fca177d4 | 819 | OUTPUT_IF (tty, tty->TS_delete_mode); |
08a24c47 | 820 | } |
daf01701 | 821 | |
fca177d4 | 822 | if (tty->TS_del_multi_chars) |
08a24c47 | 823 | { |
fca177d4 | 824 | buf = tparam (tty->TS_del_multi_chars, 0, 0, n); |
6548cf00 | 825 | OUTPUT1 (tty, buf); |
9ac0d9e0 | 826 | xfree (buf); |
08a24c47 JB |
827 | } |
828 | else | |
829 | for (i = 0; i < n; i++) | |
fca177d4 KL |
830 | OUTPUT1 (tty, tty->TS_del_char); |
831 | if (!tty->delete_in_insert_mode) | |
832 | OUTPUT_IF (tty, tty->TS_end_delete_mode); | |
08a24c47 JB |
833 | } |
834 | \f | |
da8e1115 KL |
835 | /* An implementation of ins_del_lines for termcap frames. */ |
836 | ||
ed8dad6b | 837 | static void |
385ed61f | 838 | tty_ins_del_lines (struct frame *f, int vpos, int n) |
3224dac1 | 839 | { |
3224dac1 KL |
840 | struct tty_display_info *tty = FRAME_TTY (f); |
841 | char *multi = n > 0 ? tty->TS_ins_multi_lines : tty->TS_del_multi_lines; | |
842 | char *single = n > 0 ? tty->TS_ins_line : tty->TS_del_line; | |
843 | char *scroll = n > 0 ? tty->TS_rev_scroll : tty->TS_fwd_scroll; | |
844 | ||
845 | register int i = n > 0 ? n : -n; | |
846 | register char *buf; | |
847 | ||
848 | /* If the lines below the insertion are being pushed | |
849 | into the end of the window, this is the same as clearing; | |
850 | and we know the lines are already clear, since the matching | |
851 | deletion has already been done. So can ignore this. */ | |
852 | /* If the lines below the deletion are blank lines coming | |
853 | out of the end of the window, don't bother, | |
854 | as there will be a matching inslines later that will flush them. */ | |
855 | if (FRAME_SCROLL_REGION_OK (f) | |
856 | && vpos + i >= tty->specified_window) | |
857 | return; | |
858 | if (!FRAME_MEMORY_BELOW_FRAME (f) | |
859 | && vpos + i >= FRAME_LINES (f)) | |
860 | return; | |
861 | ||
862 | if (multi) | |
08a24c47 | 863 | { |
6839f1e2 | 864 | raw_cursor_to (f, vpos, 0); |
ed8dad6b | 865 | tty_background_highlight (tty); |
3224dac1 KL |
866 | buf = tparam (multi, 0, 0, i); |
867 | OUTPUT (tty, buf); | |
868 | xfree (buf); | |
869 | } | |
870 | else if (single) | |
871 | { | |
6839f1e2 | 872 | raw_cursor_to (f, vpos, 0); |
ed8dad6b | 873 | tty_background_highlight (tty); |
3224dac1 KL |
874 | while (--i >= 0) |
875 | OUTPUT (tty, single); | |
876 | if (tty->TF_teleray) | |
877 | curX (tty) = 0; | |
08a24c47 | 878 | } |
08a24c47 JB |
879 | else |
880 | { | |
ed8dad6b | 881 | tty_set_scroll_region (f, vpos, tty->specified_window); |
3224dac1 | 882 | if (n < 0) |
6839f1e2 | 883 | raw_cursor_to (f, tty->specified_window - 1, 0); |
08a24c47 | 884 | else |
6839f1e2 | 885 | raw_cursor_to (f, vpos, 0); |
ed8dad6b | 886 | tty_background_highlight (tty); |
3224dac1 KL |
887 | while (--i >= 0) |
888 | OUTPUTL (tty, scroll, tty->specified_window - vpos); | |
ed8dad6b | 889 | tty_set_scroll_region (f, 0, tty->specified_window); |
3224dac1 KL |
890 | } |
891 | ||
892 | if (!FRAME_SCROLL_REGION_OK (f) | |
893 | && FRAME_MEMORY_BELOW_FRAME (f) | |
894 | && n < 0) | |
895 | { | |
385ed61f KL |
896 | cursor_to (f, FRAME_LINES (f) + n, 0); |
897 | clear_to_end (f); | |
08a24c47 JB |
898 | } |
899 | } | |
900 | \f | |
901 | /* Compute cost of sending "str", in characters, | |
902 | not counting any line-dependent padding. */ | |
903 | ||
904 | int | |
6839f1e2 | 905 | string_cost (char *str) |
08a24c47 JB |
906 | { |
907 | cost = 0; | |
908 | if (str) | |
909 | tputs (str, 0, evalcost); | |
910 | return cost; | |
911 | } | |
912 | ||
913 | /* Compute cost of sending "str", in characters, | |
914 | counting any line-dependent padding at one line. */ | |
915 | ||
916 | static int | |
6839f1e2 | 917 | string_cost_one_line (char *str) |
08a24c47 JB |
918 | { |
919 | cost = 0; | |
920 | if (str) | |
921 | tputs (str, 1, evalcost); | |
922 | return cost; | |
923 | } | |
924 | ||
925 | /* Compute per line amount of line-dependent padding, | |
926 | in tenths of characters. */ | |
927 | ||
928 | int | |
6839f1e2 | 929 | per_line_cost (char *str) |
08a24c47 JB |
930 | { |
931 | cost = 0; | |
932 | if (str) | |
933 | tputs (str, 0, evalcost); | |
934 | cost = - cost; | |
935 | if (str) | |
936 | tputs (str, 10, evalcost); | |
937 | return cost; | |
938 | } | |
939 | ||
940 | #ifndef old | |
941 | /* char_ins_del_cost[n] is cost of inserting N characters. | |
8dd0c7cb | 942 | char_ins_del_cost[-n] is cost of deleting N characters. |
9882535b | 943 | The length of this vector is based on max_frame_cols. */ |
08a24c47 JB |
944 | |
945 | int *char_ins_del_vector; | |
946 | ||
9882535b | 947 | #define char_ins_del_cost(f) (&char_ins_del_vector[FRAME_COLS ((f))]) |
08a24c47 JB |
948 | #endif |
949 | ||
950 | /* ARGSUSED */ | |
951 | static void | |
6839f1e2 | 952 | calculate_ins_del_char_costs (struct frame *f) |
08a24c47 | 953 | { |
28d7d09f | 954 | struct tty_display_info *tty = FRAME_TTY (f); |
08a24c47 JB |
955 | int ins_startup_cost, del_startup_cost; |
956 | int ins_cost_per_char, del_cost_per_char; | |
957 | register int i; | |
958 | register int *p; | |
959 | ||
fca177d4 | 960 | if (tty->TS_ins_multi_chars) |
08a24c47 JB |
961 | { |
962 | ins_cost_per_char = 0; | |
fca177d4 | 963 | ins_startup_cost = string_cost_one_line (tty->TS_ins_multi_chars); |
08a24c47 | 964 | } |
fca177d4 KL |
965 | else if (tty->TS_ins_char || tty->TS_pad_inserted_char |
966 | || (tty->TS_insert_mode && tty->TS_end_insert_mode)) | |
08a24c47 | 967 | { |
fca177d4 KL |
968 | ins_startup_cost = (30 * (string_cost (tty->TS_insert_mode) |
969 | + string_cost (tty->TS_end_insert_mode))) / 100; | |
970 | ins_cost_per_char = (string_cost_one_line (tty->TS_ins_char) | |
971 | + string_cost_one_line (tty->TS_pad_inserted_char)); | |
08a24c47 JB |
972 | } |
973 | else | |
974 | { | |
975 | ins_startup_cost = 9999; | |
976 | ins_cost_per_char = 0; | |
977 | } | |
978 | ||
fca177d4 | 979 | if (tty->TS_del_multi_chars) |
08a24c47 JB |
980 | { |
981 | del_cost_per_char = 0; | |
fca177d4 | 982 | del_startup_cost = string_cost_one_line (tty->TS_del_multi_chars); |
08a24c47 | 983 | } |
fca177d4 | 984 | else if (tty->TS_del_char) |
08a24c47 | 985 | { |
fca177d4 KL |
986 | del_startup_cost = (string_cost (tty->TS_delete_mode) |
987 | + string_cost (tty->TS_end_delete_mode)); | |
988 | if (tty->delete_in_insert_mode) | |
08a24c47 | 989 | del_startup_cost /= 2; |
fca177d4 | 990 | del_cost_per_char = string_cost_one_line (tty->TS_del_char); |
08a24c47 JB |
991 | } |
992 | else | |
993 | { | |
994 | del_startup_cost = 9999; | |
995 | del_cost_per_char = 0; | |
996 | } | |
997 | ||
998 | /* Delete costs are at negative offsets */ | |
fca177d4 KL |
999 | p = &char_ins_del_cost (f)[0]; |
1000 | for (i = FRAME_COLS (f); --i >= 0;) | |
08a24c47 JB |
1001 | *--p = (del_startup_cost += del_cost_per_char); |
1002 | ||
1003 | /* Doing nothing is free */ | |
fca177d4 | 1004 | p = &char_ins_del_cost (f)[0]; |
08a24c47 JB |
1005 | *p++ = 0; |
1006 | ||
1007 | /* Insert costs are at positive offsets */ | |
fca177d4 | 1008 | for (i = FRAME_COLS (f); --i >= 0;) |
08a24c47 JB |
1009 | *p++ = (ins_startup_cost += ins_cost_per_char); |
1010 | } | |
1011 | ||
dfcf069d | 1012 | void |
6839f1e2 | 1013 | calculate_costs (struct frame *frame) |
08a24c47 | 1014 | { |
9f732a77 | 1015 | FRAME_COST_BAUD_RATE (frame) = baud_rate; |
08a24c47 | 1016 | |
28d440ab | 1017 | if (FRAME_TERMCAP_P (frame)) |
daf01701 KL |
1018 | { |
1019 | struct tty_display_info *tty = FRAME_TTY (frame); | |
1020 | register char *f = (tty->TS_set_scroll_region | |
1021 | ? tty->TS_set_scroll_region | |
1022 | : tty->TS_set_scroll_region_1); | |
08a24c47 | 1023 | |
daf01701 | 1024 | FRAME_SCROLL_REGION_COST (frame) = string_cost (f); |
08a24c47 | 1025 | |
daf01701 | 1026 | tty->costs_set = 1; |
08a24c47 | 1027 | |
daf01701 KL |
1028 | /* These variables are only used for terminal stuff. They are |
1029 | allocated once for the terminal frame of X-windows emacs, but not | |
1030 | used afterwards. | |
8dd0c7cb | 1031 | |
daf01701 KL |
1032 | char_ins_del_vector (i.e., char_ins_del_cost) isn't used because |
1033 | X turns off char_ins_del_ok. */ | |
08a24c47 | 1034 | |
daf01701 KL |
1035 | max_frame_lines = max (max_frame_lines, FRAME_LINES (frame)); |
1036 | max_frame_cols = max (max_frame_cols, FRAME_COLS (frame)); | |
08a24c47 | 1037 | |
daf01701 KL |
1038 | if (char_ins_del_vector != 0) |
1039 | char_ins_del_vector | |
1040 | = (int *) xrealloc (char_ins_del_vector, | |
1041 | (sizeof (int) | |
1042 | + 2 * max_frame_cols * sizeof (int))); | |
1043 | else | |
1044 | char_ins_del_vector | |
1045 | = (int *) xmalloc (sizeof (int) | |
1046 | + 2 * max_frame_cols * sizeof (int)); | |
08a24c47 | 1047 | |
daf01701 KL |
1048 | bzero (char_ins_del_vector, (sizeof (int) |
1049 | + 2 * max_frame_cols * sizeof (int))); | |
1050 | ||
1051 | ||
1052 | if (f && (!tty->TS_ins_line && !tty->TS_del_line)) | |
1053 | do_line_insertion_deletion_costs (frame, | |
1054 | tty->TS_rev_scroll, tty->TS_ins_multi_lines, | |
1055 | tty->TS_fwd_scroll, tty->TS_del_multi_lines, | |
1056 | f, f, 1); | |
1057 | else | |
1058 | do_line_insertion_deletion_costs (frame, | |
1059 | tty->TS_ins_line, tty->TS_ins_multi_lines, | |
1060 | tty->TS_del_line, tty->TS_del_multi_lines, | |
1061 | 0, 0, 1); | |
1062 | ||
1063 | calculate_ins_del_char_costs (frame); | |
1064 | ||
1065 | /* Don't use TS_repeat if its padding is worse than sending the chars */ | |
1066 | if (tty->TS_repeat && per_line_cost (tty->TS_repeat) * baud_rate < 9000) | |
1067 | tty->RPov = string_cost (tty->TS_repeat); | |
1068 | else | |
1069 | tty->RPov = FRAME_COLS (frame) * 2; | |
08a24c47 | 1070 | |
daf01701 KL |
1071 | cmcostinit (FRAME_TTY (frame)); /* set up cursor motion costs */ |
1072 | } | |
08a24c47 JB |
1073 | } |
1074 | \f | |
a796ac82 JB |
1075 | struct fkey_table { |
1076 | char *cap, *name; | |
1077 | }; | |
1078 | ||
01d8deb0 ER |
1079 | /* Termcap capability names that correspond directly to X keysyms. |
1080 | Some of these (marked "terminfo") aren't supplied by old-style | |
1081 | (Berkeley) termcap entries. They're listed in X keysym order; | |
1082 | except we put the keypad keys first, so that if they clash with | |
1083 | other keys (as on the IBM PC keyboard) they get overridden. | |
1084 | */ | |
1085 | ||
a168702a GM |
1086 | static struct fkey_table keys[] = |
1087 | { | |
8103ad1a PJ |
1088 | {"kh", "home"}, /* termcap */ |
1089 | {"kl", "left"}, /* termcap */ | |
1090 | {"ku", "up"}, /* termcap */ | |
1091 | {"kr", "right"}, /* termcap */ | |
1092 | {"kd", "down"}, /* termcap */ | |
1093 | {"%8", "prior"}, /* terminfo */ | |
1094 | {"%5", "next"}, /* terminfo */ | |
1095 | {"@7", "end"}, /* terminfo */ | |
1096 | {"@1", "begin"}, /* terminfo */ | |
1097 | {"*6", "select"}, /* terminfo */ | |
1098 | {"%9", "print"}, /* terminfo */ | |
1099 | {"@4", "execute"}, /* terminfo --- actually the `command' key */ | |
01d8deb0 ER |
1100 | /* |
1101 | * "insert" --- see below | |
1102 | */ | |
8103ad1a PJ |
1103 | {"&8", "undo"}, /* terminfo */ |
1104 | {"%0", "redo"}, /* terminfo */ | |
1105 | {"%7", "menu"}, /* terminfo --- actually the `options' key */ | |
1106 | {"@0", "find"}, /* terminfo */ | |
1107 | {"@2", "cancel"}, /* terminfo */ | |
1108 | {"%1", "help"}, /* terminfo */ | |
01d8deb0 ER |
1109 | /* |
1110 | * "break" goes here, but can't be reliably intercepted with termcap | |
1111 | */ | |
8103ad1a | 1112 | {"&4", "reset"}, /* terminfo --- actually `restart' */ |
01d8deb0 ER |
1113 | /* |
1114 | * "system" and "user" --- no termcaps | |
1115 | */ | |
8103ad1a PJ |
1116 | {"kE", "clearline"}, /* terminfo */ |
1117 | {"kA", "insertline"}, /* terminfo */ | |
1118 | {"kL", "deleteline"}, /* terminfo */ | |
1119 | {"kI", "insertchar"}, /* terminfo */ | |
1120 | {"kD", "deletechar"}, /* terminfo */ | |
1121 | {"kB", "backtab"}, /* terminfo */ | |
01d8deb0 ER |
1122 | /* |
1123 | * "kp_backtab", "kp-space", "kp-tab" --- no termcaps | |
1124 | */ | |
8103ad1a | 1125 | {"@8", "kp-enter"}, /* terminfo */ |
01d8deb0 ER |
1126 | /* |
1127 | * "kp-f1", "kp-f2", "kp-f3" "kp-f4", | |
1128 | * "kp-multiply", "kp-add", "kp-separator", | |
1129 | * "kp-subtract", "kp-decimal", "kp-divide", "kp-0"; | |
1130 | * --- no termcaps for any of these. | |
1131 | */ | |
8103ad1a | 1132 | {"K4", "kp-1"}, /* terminfo */ |
01d8deb0 ER |
1133 | /* |
1134 | * "kp-2" --- no termcap | |
1135 | */ | |
8103ad1a | 1136 | {"K5", "kp-3"}, /* terminfo */ |
01d8deb0 ER |
1137 | /* |
1138 | * "kp-4" --- no termcap | |
1139 | */ | |
8103ad1a | 1140 | {"K2", "kp-5"}, /* terminfo */ |
01d8deb0 ER |
1141 | /* |
1142 | * "kp-6" --- no termcap | |
1143 | */ | |
8103ad1a | 1144 | {"K1", "kp-7"}, /* terminfo */ |
01d8deb0 ER |
1145 | /* |
1146 | * "kp-8" --- no termcap | |
1147 | */ | |
8103ad1a | 1148 | {"K3", "kp-9"}, /* terminfo */ |
01d8deb0 ER |
1149 | /* |
1150 | * "kp-equal" --- no termcap | |
1151 | */ | |
8103ad1a PJ |
1152 | {"k1", "f1"}, |
1153 | {"k2", "f2"}, | |
1154 | {"k3", "f3"}, | |
1155 | {"k4", "f4"}, | |
1156 | {"k5", "f5"}, | |
1157 | {"k6", "f6"}, | |
1158 | {"k7", "f7"}, | |
1159 | {"k8", "f8"}, | |
60ec7b7e DN |
1160 | {"k9", "f9"}, |
1161 | ||
1162 | {"&0", "S-cancel"}, /*shifted cancel key*/ | |
1163 | {"&9", "S-begin"}, /*shifted begin key*/ | |
1164 | {"*0", "S-find"}, /*shifted find key*/ | |
1165 | {"*1", "S-execute"}, /*shifted execute? actually shifted command key*/ | |
1166 | {"*4", "S-delete"}, /*shifted delete-character key*/ | |
1167 | {"*7", "S-end"}, /*shifted end key*/ | |
1168 | {"*8", "S-clearline"}, /*shifted clear-to end-of-line key*/ | |
1169 | {"#1", "S-help"}, /*shifted help key*/ | |
1170 | {"#2", "S-home"}, /*shifted home key*/ | |
1171 | {"#3", "S-insert"}, /*shifted insert-character key*/ | |
1172 | {"#4", "S-left"}, /*shifted left-arrow key*/ | |
1173 | {"%d", "S-menu"}, /*shifted menu? actually shifted options key*/ | |
1174 | {"%c", "S-next"}, /*shifted next key*/ | |
1175 | {"%e", "S-prior"}, /*shifted previous key*/ | |
1176 | {"%f", "S-print"}, /*shifted print key*/ | |
1177 | {"%g", "S-redo"}, /*shifted redo key*/ | |
1178 | {"%i", "S-right"}, /*shifted right-arrow key*/ | |
1179 | {"!3", "S-undo"} /*shifted undo key*/ | |
a796ac82 JB |
1180 | }; |
1181 | ||
e7cf0fa0 KL |
1182 | static char **term_get_fkeys_address; |
1183 | static KBOARD *term_get_fkeys_kboard; | |
f2a00342 | 1184 | static Lisp_Object term_get_fkeys_1 (); |
465db27b | 1185 | |
01d8deb0 | 1186 | /* Find the escape codes sent by the function keys for Vfunction_key_map. |
177c0ea7 | 1187 | This function scans the termcap function key sequence entries, and |
01d8deb0 ER |
1188 | adds entries to Vfunction_key_map for each function key it finds. */ |
1189 | ||
ed8dad6b | 1190 | static void |
e7cf0fa0 | 1191 | term_get_fkeys (address, kboard) |
5c2c7893 | 1192 | char **address; |
e7cf0fa0 | 1193 | KBOARD *kboard; |
f2a00342 RM |
1194 | { |
1195 | /* We run the body of the function (term_get_fkeys_1) and ignore all Lisp | |
1196 | errors during the call. The only errors should be from Fdefine_key | |
1197 | when given a key sequence containing an invalid prefix key. If the | |
1198 | termcap defines function keys which use a prefix that is already bound | |
1199 | to a command by the default bindings, we should silently ignore that | |
1200 | function key specification, rather than giving the user an error and | |
1201 | refusing to run at all on such a terminal. */ | |
1202 | ||
1203 | extern Lisp_Object Fidentity (); | |
e7cf0fa0 KL |
1204 | term_get_fkeys_address = address; |
1205 | term_get_fkeys_kboard = kboard; | |
f2a00342 RM |
1206 | internal_condition_case (term_get_fkeys_1, Qerror, Fidentity); |
1207 | } | |
1208 | ||
1209 | static Lisp_Object | |
1210 | term_get_fkeys_1 () | |
5c2c7893 | 1211 | { |
5c2c7893 JB |
1212 | int i; |
1213 | ||
e7cf0fa0 KL |
1214 | char **address = term_get_fkeys_address; |
1215 | KBOARD *kboard = term_get_fkeys_kboard; | |
1216 | ||
3e65092f RS |
1217 | /* This can happen if CANNOT_DUMP or with strange options. */ |
1218 | if (!initialized) | |
ac09dc1e | 1219 | kboard->Vlocal_function_key_map = Fmake_sparse_keymap (Qnil); |
3e65092f | 1220 | |
5c2c7893 JB |
1221 | for (i = 0; i < (sizeof (keys)/sizeof (keys[0])); i++) |
1222 | { | |
1223 | char *sequence = tgetstr (keys[i].cap, address); | |
1224 | if (sequence) | |
ac09dc1e | 1225 | Fdefine_key (kboard->Vlocal_function_key_map, build_string (sequence), |
f2a00342 RM |
1226 | Fmake_vector (make_number (1), |
1227 | intern (keys[i].name))); | |
5c2c7893 | 1228 | } |
a796ac82 JB |
1229 | |
1230 | /* The uses of the "k0" capability are inconsistent; sometimes it | |
1231 | describes F10, whereas othertimes it describes F0 and "k;" describes F10. | |
eb8c3be9 | 1232 | We will attempt to politely accommodate both systems by testing for |
a796ac82 JB |
1233 | "k;", and if it is present, assuming that "k0" denotes F0, otherwise F10. |
1234 | */ | |
1235 | { | |
1236 | char *k_semi = tgetstr ("k;", address); | |
1237 | char *k0 = tgetstr ("k0", address); | |
1238 | char *k0_name = "f10"; | |
1239 | ||
1240 | if (k_semi) | |
1241 | { | |
95c11956 SM |
1242 | if (k0) |
1243 | /* Define f0 first, so that f10 takes precedence in case the | |
1244 | key sequences happens to be the same. */ | |
ac09dc1e | 1245 | Fdefine_key (kboard->Vlocal_function_key_map, build_string (k0), |
95c11956 | 1246 | Fmake_vector (make_number (1), intern ("f0"))); |
ac09dc1e | 1247 | Fdefine_key (kboard->Vlocal_function_key_map, build_string (k_semi), |
f2a00342 | 1248 | Fmake_vector (make_number (1), intern ("f10"))); |
a796ac82 | 1249 | } |
95c11956 | 1250 | else if (k0) |
ac09dc1e | 1251 | Fdefine_key (kboard->Vlocal_function_key_map, build_string (k0), |
f2a00342 | 1252 | Fmake_vector (make_number (1), intern (k0_name))); |
a796ac82 | 1253 | } |
01d8deb0 ER |
1254 | |
1255 | /* Set up cookies for numbered function keys above f10. */ | |
1256 | { | |
1257 | char fcap[3], fkey[4]; | |
1258 | ||
fc4f24da | 1259 | fcap[0] = 'F'; fcap[2] = '\0'; |
01d8deb0 ER |
1260 | for (i = 11; i < 64; i++) |
1261 | { | |
1262 | if (i <= 19) | |
1263 | fcap[1] = '1' + i - 11; | |
1264 | else if (i <= 45) | |
b59ab95c | 1265 | fcap[1] = 'A' + i - 20; |
01d8deb0 | 1266 | else |
b59ab95c | 1267 | fcap[1] = 'a' + i - 46; |
01d8deb0 | 1268 | |
fc4f24da RS |
1269 | { |
1270 | char *sequence = tgetstr (fcap, address); | |
1271 | if (sequence) | |
1272 | { | |
465db27b | 1273 | sprintf (fkey, "f%d", i); |
ac09dc1e | 1274 | Fdefine_key (kboard->Vlocal_function_key_map, build_string (sequence), |
f2a00342 RM |
1275 | Fmake_vector (make_number (1), |
1276 | intern (fkey))); | |
fc4f24da RS |
1277 | } |
1278 | } | |
01d8deb0 ER |
1279 | } |
1280 | } | |
1281 | ||
1282 | /* | |
1283 | * Various mappings to try and get a better fit. | |
1284 | */ | |
1285 | { | |
fc4f24da RS |
1286 | #define CONDITIONAL_REASSIGN(cap1, cap2, sym) \ |
1287 | if (!tgetstr (cap1, address)) \ | |
1288 | { \ | |
1289 | char *sequence = tgetstr (cap2, address); \ | |
e7cf0fa0 | 1290 | if (sequence) \ |
ac09dc1e | 1291 | Fdefine_key (kboard->Vlocal_function_key_map, build_string (sequence), \ |
e7cf0fa0 KL |
1292 | Fmake_vector (make_number (1), \ |
1293 | intern (sym))); \ | |
fc4f24da | 1294 | } |
177c0ea7 | 1295 | |
01d8deb0 | 1296 | /* if there's no key_next keycap, map key_npage to `next' keysym */ |
27b61785 | 1297 | CONDITIONAL_REASSIGN ("%5", "kN", "next"); |
01d8deb0 | 1298 | /* if there's no key_prev keycap, map key_ppage to `previous' keysym */ |
381d11a1 | 1299 | CONDITIONAL_REASSIGN ("%8", "kP", "prior"); |
01d8deb0 | 1300 | /* if there's no key_dc keycap, map key_ic to `insert' keysym */ |
27b61785 | 1301 | CONDITIONAL_REASSIGN ("kD", "kI", "insert"); |
403c995b RS |
1302 | /* if there's no key_end keycap, map key_ll to 'end' keysym */ |
1303 | CONDITIONAL_REASSIGN ("@7", "kH", "end"); | |
0a7f697a KH |
1304 | |
1305 | /* IBM has their own non-standard dialect of terminfo. | |
1306 | If the standard name isn't found, try the IBM name. */ | |
1307 | CONDITIONAL_REASSIGN ("kB", "KO", "backtab"); | |
1308 | CONDITIONAL_REASSIGN ("@4", "kJ", "execute"); /* actually "action" */ | |
1309 | CONDITIONAL_REASSIGN ("@4", "kc", "execute"); /* actually "command" */ | |
1310 | CONDITIONAL_REASSIGN ("%7", "ki", "menu"); | |
1311 | CONDITIONAL_REASSIGN ("@7", "kw", "end"); | |
1312 | CONDITIONAL_REASSIGN ("F1", "k<", "f11"); | |
1313 | CONDITIONAL_REASSIGN ("F2", "k>", "f12"); | |
1314 | CONDITIONAL_REASSIGN ("%1", "kq", "help"); | |
1315 | CONDITIONAL_REASSIGN ("*6", "kU", "select"); | |
1dd40212 | 1316 | #undef CONDITIONAL_REASSIGN |
01d8deb0 | 1317 | } |
a168702a GM |
1318 | |
1319 | return Qnil; | |
5c2c7893 JB |
1320 | } |
1321 | ||
1322 | \f | |
a168702a GM |
1323 | /*********************************************************************** |
1324 | Character Display Information | |
1325 | ***********************************************************************/ | |
1326 | ||
47021b11 KS |
1327 | /* Avoid name clash with functions defined in xterm.c */ |
1328 | #ifdef static | |
1329 | #define append_glyph append_glyph_term | |
1330 | #define produce_stretch_glyph produce_stretch_glyph_term | |
1331 | #endif | |
1332 | ||
a168702a | 1333 | static void append_glyph P_ ((struct it *)); |
f46c2aff | 1334 | static void produce_stretch_glyph P_ ((struct it *)); |
a168702a GM |
1335 | |
1336 | ||
1337 | /* Append glyphs to IT's glyph_row. Called from produce_glyphs for | |
d2b4c17d KH |
1338 | terminal frames if IT->glyph_row != NULL. IT->char_to_display is |
1339 | the character for which to produce glyphs; IT->face_id contains the | |
1340 | character's face. Padding glyphs are appended if IT->c has a | |
1341 | IT->pixel_width > 1. */ | |
177c0ea7 | 1342 | |
a168702a GM |
1343 | static void |
1344 | append_glyph (it) | |
1345 | struct it *it; | |
1346 | { | |
1347 | struct glyph *glyph, *end; | |
1348 | int i; | |
1349 | ||
1350 | xassert (it->glyph_row); | |
1351 | glyph = (it->glyph_row->glyphs[it->area] | |
1352 | + it->glyph_row->used[it->area]); | |
1353 | end = it->glyph_row->glyphs[1 + it->area]; | |
1354 | ||
177c0ea7 JB |
1355 | for (i = 0; |
1356 | i < it->pixel_width && glyph < end; | |
a168702a GM |
1357 | ++i) |
1358 | { | |
1359 | glyph->type = CHAR_GLYPH; | |
d13f3e2e | 1360 | glyph->pixel_width = 1; |
d2b4c17d | 1361 | glyph->u.ch = it->char_to_display; |
32de38e4 KH |
1362 | glyph->face_id = it->face_id; |
1363 | glyph->padding_p = i > 0; | |
a168702a GM |
1364 | glyph->charpos = CHARPOS (it->position); |
1365 | glyph->object = it->object; | |
177c0ea7 | 1366 | |
a168702a GM |
1367 | ++it->glyph_row->used[it->area]; |
1368 | ++glyph; | |
1369 | } | |
1370 | } | |
1371 | ||
1372 | ||
b50fe468 RS |
1373 | /* Produce glyphs for the display element described by IT. *IT |
1374 | specifies what we want to produce a glyph for (character, image, ...), | |
1375 | and where in the glyph matrix we currently are (glyph row and hpos). | |
1376 | produce_glyphs fills in output fields of *IT with information such as the | |
1377 | pixel width and height of a character, and maybe output actual glyphs at | |
a168702a | 1378 | the same time if IT->glyph_row is non-null. See the explanation of |
b50fe468 RS |
1379 | struct display_iterator in dispextern.h for an overview. |
1380 | ||
1381 | produce_glyphs also stores the result of glyph width, ascent | |
1382 | etc. computations in *IT. | |
1383 | ||
1384 | IT->glyph_row may be null, in which case produce_glyphs does not | |
1385 | actually fill in the glyphs. This is used in the move_* functions | |
1386 | in xdisp.c for text width and height computations. | |
1387 | ||
1388 | Callers usually don't call produce_glyphs directly; | |
1389 | instead they use the macro PRODUCE_GLYPHS. */ | |
a168702a | 1390 | |
177c0ea7 | 1391 | void |
a168702a GM |
1392 | produce_glyphs (it) |
1393 | struct it *it; | |
1394 | { | |
1395 | /* If a hook is installed, let it do the work. */ | |
1396 | xassert (it->what == IT_CHARACTER | |
c7cba11d | 1397 | || it->what == IT_COMPOSITION |
a168702a | 1398 | || it->what == IT_STRETCH); |
177c0ea7 | 1399 | |
f46c2aff KS |
1400 | if (it->what == IT_STRETCH) |
1401 | { | |
1402 | produce_stretch_glyph (it); | |
1403 | goto done; | |
1404 | } | |
1405 | ||
c7cba11d KH |
1406 | /* Nothing but characters are supported on terminal frames. For a |
1407 | composition sequence, it->c is the first character of the | |
1408 | sequence. */ | |
1409 | xassert (it->what == IT_CHARACTER | |
1410 | || it->what == IT_COMPOSITION); | |
a168702a | 1411 | |
d2b4c17d KH |
1412 | /* Maybe translate single-byte characters to multibyte. */ |
1413 | it->char_to_display = it->c; | |
1414 | ||
a168702a GM |
1415 | if (it->c >= 040 && it->c < 0177) |
1416 | { | |
1417 | it->pixel_width = it->nglyphs = 1; | |
1418 | if (it->glyph_row) | |
1419 | append_glyph (it); | |
1420 | } | |
1421 | else if (it->c == '\n') | |
1422 | it->pixel_width = it->nglyphs = 0; | |
1423 | else if (it->c == '\t') | |
1424 | { | |
2efdbcdd | 1425 | int absolute_x = (it->current_x |
a168702a | 1426 | + it->continuation_lines_width); |
177c0ea7 JB |
1427 | int next_tab_x |
1428 | = (((1 + absolute_x + it->tab_width - 1) | |
a168702a GM |
1429 | / it->tab_width) |
1430 | * it->tab_width); | |
1431 | int nspaces; | |
1432 | ||
1433 | /* If part of the TAB has been displayed on the previous line | |
1434 | which is continued now, continuation_lines_width will have | |
1435 | been incremented already by the part that fitted on the | |
1436 | continued line. So, we will get the right number of spaces | |
1437 | here. */ | |
1438 | nspaces = next_tab_x - absolute_x; | |
177c0ea7 | 1439 | |
a168702a GM |
1440 | if (it->glyph_row) |
1441 | { | |
1442 | int n = nspaces; | |
177c0ea7 | 1443 | |
d2b4c17d | 1444 | it->char_to_display = ' '; |
a168702a | 1445 | it->pixel_width = it->len = 1; |
177c0ea7 | 1446 | |
a168702a GM |
1447 | while (n--) |
1448 | append_glyph (it); | |
a168702a GM |
1449 | } |
1450 | ||
1451 | it->pixel_width = nspaces; | |
1452 | it->nglyphs = nspaces; | |
1453 | } | |
add44890 EZ |
1454 | else if (SINGLE_BYTE_CHAR_P (it->c)) |
1455 | { | |
d2b4c17d KH |
1456 | if (unibyte_display_via_language_environment |
1457 | && (it->c >= 0240 | |
1458 | || !NILP (Vnonascii_translation_table))) | |
1459 | { | |
1460 | int charset; | |
1461 | ||
1462 | it->char_to_display = unibyte_char_to_multibyte (it->c); | |
1463 | charset = CHAR_CHARSET (it->char_to_display); | |
1464 | it->pixel_width = CHARSET_WIDTH (charset); | |
1465 | it->nglyphs = it->pixel_width; | |
1466 | if (it->glyph_row) | |
1467 | append_glyph (it); | |
1468 | } | |
1469 | else | |
1470 | { | |
1471 | /* Coming here means that it->c is from display table, thus we | |
1472 | must send the code as is to the terminal. Although there's | |
1473 | no way to know how many columns it occupies on a screen, it | |
1474 | is a good assumption that a single byte code has 1-column | |
1475 | width. */ | |
1476 | it->pixel_width = it->nglyphs = 1; | |
1477 | if (it->glyph_row) | |
1478 | append_glyph (it); | |
1479 | } | |
add44890 | 1480 | } |
a168702a GM |
1481 | else |
1482 | { | |
c7cba11d KH |
1483 | /* A multi-byte character. The display width is fixed for all |
1484 | characters of the set. Some of the glyphs may have to be | |
1485 | ignored because they are already displayed in a continued | |
1486 | line. */ | |
a168702a GM |
1487 | int charset = CHAR_CHARSET (it->c); |
1488 | ||
c7cba11d | 1489 | it->pixel_width = CHARSET_WIDTH (charset); |
a168702a | 1490 | it->nglyphs = it->pixel_width; |
177c0ea7 | 1491 | |
a168702a GM |
1492 | if (it->glyph_row) |
1493 | append_glyph (it); | |
1494 | } | |
1495 | ||
f46c2aff | 1496 | done: |
177c0ea7 | 1497 | /* Advance current_x by the pixel width as a convenience for |
a168702a GM |
1498 | the caller. */ |
1499 | if (it->area == TEXT_AREA) | |
1500 | it->current_x += it->pixel_width; | |
cfe8a05e GM |
1501 | it->ascent = it->max_ascent = it->phys_ascent = it->max_phys_ascent = 0; |
1502 | it->descent = it->max_descent = it->phys_descent = it->max_phys_descent = 1; | |
a168702a GM |
1503 | } |
1504 | ||
1505 | ||
f46c2aff KS |
1506 | /* Produce a stretch glyph for iterator IT. IT->object is the value |
1507 | of the glyph property displayed. The value must be a list | |
1508 | `(space KEYWORD VALUE ...)' with the following KEYWORD/VALUE pairs | |
1509 | being recognized: | |
1510 | ||
1511 | 1. `:width WIDTH' specifies that the space should be WIDTH * | |
1512 | canonical char width wide. WIDTH may be an integer or floating | |
1513 | point number. | |
1514 | ||
1515 | 2. `:align-to HPOS' specifies that the space should be wide enough | |
1516 | to reach HPOS, a value in canonical character units. */ | |
1517 | ||
1518 | static void | |
1519 | produce_stretch_glyph (it) | |
1520 | struct it *it; | |
1521 | { | |
1522 | /* (space :width WIDTH ...) */ | |
1523 | Lisp_Object prop, plist; | |
1524 | int width = 0, align_to = -1; | |
1525 | int zero_width_ok_p = 0; | |
1526 | double tem; | |
1527 | ||
1528 | /* List should start with `space'. */ | |
1529 | xassert (CONSP (it->object) && EQ (XCAR (it->object), Qspace)); | |
1530 | plist = XCDR (it->object); | |
1531 | ||
1532 | /* Compute the width of the stretch. */ | |
1533 | if ((prop = Fplist_get (plist, QCwidth), !NILP (prop)) | |
1534 | && calc_pixel_width_or_height (&tem, it, prop, 0, 1, 0)) | |
1535 | { | |
1536 | /* Absolute width `:width WIDTH' specified and valid. */ | |
1537 | zero_width_ok_p = 1; | |
1538 | width = (int)(tem + 0.5); | |
1539 | } | |
1540 | else if ((prop = Fplist_get (plist, QCalign_to), !NILP (prop)) | |
1541 | && calc_pixel_width_or_height (&tem, it, prop, 0, 1, &align_to)) | |
1542 | { | |
1543 | if (it->glyph_row == NULL || !it->glyph_row->mode_line_p) | |
feef4f84 | 1544 | align_to = (align_to < 0 |
f46c2aff KS |
1545 | ? 0 |
1546 | : align_to - window_box_left_offset (it->w, TEXT_AREA)); | |
1547 | else if (align_to < 0) | |
1548 | align_to = window_box_left_offset (it->w, TEXT_AREA); | |
1549 | width = max (0, (int)(tem + 0.5) + align_to - it->current_x); | |
1550 | zero_width_ok_p = 1; | |
1551 | } | |
1552 | else | |
1553 | /* Nothing specified -> width defaults to canonical char width. */ | |
1554 | width = FRAME_COLUMN_WIDTH (it->f); | |
1555 | ||
1556 | if (width <= 0 && (width < 0 || !zero_width_ok_p)) | |
1557 | width = 1; | |
1558 | ||
1559 | if (width > 0 && it->glyph_row) | |
1560 | { | |
1561 | Lisp_Object o_object = it->object; | |
1562 | Lisp_Object object = it->stack[it->sp - 1].string; | |
1563 | int n = width; | |
f46c2aff KS |
1564 | |
1565 | if (!STRINGP (object)) | |
1566 | object = it->w->buffer; | |
1567 | it->object = object; | |
d2b4c17d | 1568 | it->char_to_display = ' '; |
f46c2aff KS |
1569 | it->pixel_width = it->len = 1; |
1570 | while (n--) | |
1571 | append_glyph (it); | |
1572 | it->object = o_object; | |
f46c2aff KS |
1573 | } |
1574 | it->pixel_width = width; | |
1575 | it->nglyphs = width; | |
1576 | } | |
1577 | ||
1578 | ||
a168702a GM |
1579 | /* Get information about special display element WHAT in an |
1580 | environment described by IT. WHAT is one of IT_TRUNCATION or | |
1581 | IT_CONTINUATION. Maybe produce glyphs for WHAT if IT has a | |
1582 | non-null glyph_row member. This function ensures that fields like | |
1583 | face_id, c, len of IT are left untouched. */ | |
1584 | ||
1585 | void | |
1586 | produce_special_glyphs (it, what) | |
1587 | struct it *it; | |
1588 | enum display_element_type what; | |
1589 | { | |
1590 | struct it temp_it; | |
072d84a6 | 1591 | GLYPH glyph; |
177c0ea7 | 1592 | |
a168702a GM |
1593 | temp_it = *it; |
1594 | temp_it.dp = NULL; | |
1595 | temp_it.what = IT_CHARACTER; | |
1596 | temp_it.len = 1; | |
7c752c80 | 1597 | temp_it.object = make_number (0); |
a168702a GM |
1598 | bzero (&temp_it.current, sizeof temp_it.current); |
1599 | ||
1600 | if (what == IT_CONTINUATION) | |
1601 | { | |
1602 | /* Continuation glyph. */ | |
1603 | if (it->dp | |
1604 | && INTEGERP (DISP_CONTINUE_GLYPH (it->dp)) | |
1605 | && GLYPH_CHAR_VALID_P (XINT (DISP_CONTINUE_GLYPH (it->dp)))) | |
1606 | { | |
072d84a6 RS |
1607 | glyph = XINT (DISP_CONTINUE_GLYPH (it->dp)); |
1608 | glyph = spec_glyph_lookup_face (XWINDOW (it->window), glyph); | |
a168702a GM |
1609 | } |
1610 | else | |
072d84a6 | 1611 | glyph = '\\'; |
a168702a GM |
1612 | } |
1613 | else if (what == IT_TRUNCATION) | |
1614 | { | |
1615 | /* Truncation glyph. */ | |
1616 | if (it->dp | |
1617 | && INTEGERP (DISP_TRUNC_GLYPH (it->dp)) | |
1618 | && GLYPH_CHAR_VALID_P (XINT (DISP_TRUNC_GLYPH (it->dp)))) | |
1619 | { | |
072d84a6 RS |
1620 | glyph = XINT (DISP_TRUNC_GLYPH (it->dp)); |
1621 | glyph = spec_glyph_lookup_face (XWINDOW (it->window), glyph); | |
a168702a GM |
1622 | } |
1623 | else | |
072d84a6 | 1624 | glyph = '$'; |
a168702a GM |
1625 | } |
1626 | else | |
1627 | abort (); | |
072d84a6 RS |
1628 | |
1629 | temp_it.c = FAST_GLYPH_CHAR (glyph); | |
1630 | temp_it.face_id = FAST_GLYPH_FACE (glyph); | |
1631 | temp_it.len = CHAR_BYTES (temp_it.c); | |
1632 | ||
1633 | produce_glyphs (&temp_it); | |
1634 | it->pixel_width = temp_it.pixel_width; | |
1635 | it->nglyphs = temp_it.pixel_width; | |
a168702a GM |
1636 | } |
1637 | ||
1638 | ||
a168702a GM |
1639 | \f |
1640 | /*********************************************************************** | |
1641 | Faces | |
1642 | ***********************************************************************/ | |
1643 | ||
4e6ba4a4 GM |
1644 | /* Value is non-zero if attribute ATTR may be used. ATTR should be |
1645 | one of the enumerators from enum no_color_bit, or a bit set built | |
1646 | from them. Some display attributes may not be used together with | |
1647 | color; the termcap capability `NC' specifies which ones. */ | |
1648 | ||
fca177d4 KL |
1649 | #define MAY_USE_WITH_COLORS_P(tty, ATTR) \ |
1650 | (tty->TN_max_colors > 0 \ | |
1651 | ? (tty->TN_no_color_video & (ATTR)) == 0 \ | |
1652 | : 1) | |
a168702a | 1653 | |
072d84a6 RS |
1654 | /* Turn appearances of face FACE_ID on tty frame F on. |
1655 | FACE_ID is a realized face ID number, in the face cache. */ | |
a168702a GM |
1656 | |
1657 | static void | |
1658 | turn_on_face (f, face_id) | |
1659 | struct frame *f; | |
1660 | int face_id; | |
1661 | { | |
1662 | struct face *face = FACE_FROM_ID (f, face_id); | |
86a7d192 GM |
1663 | long fg = face->foreground; |
1664 | long bg = face->background; | |
28d7d09f | 1665 | struct tty_display_info *tty = FRAME_TTY (f); |
a168702a | 1666 | |
86a7d192 GM |
1667 | /* Do this first because TS_end_standout_mode may be the same |
1668 | as TS_exit_attribute_mode, which turns all appearances off. */ | |
fca177d4 | 1669 | if (MAY_USE_WITH_COLORS_P (tty, NC_REVERSE)) |
86a7d192 | 1670 | { |
fca177d4 | 1671 | if (tty->TN_max_colors > 0) |
86a7d192 GM |
1672 | { |
1673 | if (fg >= 0 && bg >= 0) | |
1674 | { | |
1675 | /* If the terminal supports colors, we can set them | |
1676 | below without using reverse video. The face's fg | |
1677 | and bg colors are set as they should appear on | |
1678 | the screen, i.e. they take the inverse-video'ness | |
1679 | of the face already into account. */ | |
1680 | } | |
1681 | else if (inverse_video) | |
1682 | { | |
1683 | if (fg == FACE_TTY_DEFAULT_FG_COLOR | |
1684 | || bg == FACE_TTY_DEFAULT_BG_COLOR) | |
ed8dad6b | 1685 | tty_toggle_highlight (tty); |
86a7d192 GM |
1686 | } |
1687 | else | |
1688 | { | |
1689 | if (fg == FACE_TTY_DEFAULT_BG_COLOR | |
1690 | || bg == FACE_TTY_DEFAULT_FG_COLOR) | |
ed8dad6b | 1691 | tty_toggle_highlight (tty); |
86a7d192 GM |
1692 | } |
1693 | } | |
1694 | else | |
1695 | { | |
1696 | /* If we can't display colors, use reverse video | |
1697 | if the face specifies that. */ | |
37526b42 GM |
1698 | if (inverse_video) |
1699 | { | |
1700 | if (fg == FACE_TTY_DEFAULT_FG_COLOR | |
1701 | || bg == FACE_TTY_DEFAULT_BG_COLOR) | |
ed8dad6b | 1702 | tty_toggle_highlight (tty); |
37526b42 GM |
1703 | } |
1704 | else | |
1705 | { | |
1706 | if (fg == FACE_TTY_DEFAULT_BG_COLOR | |
1707 | || bg == FACE_TTY_DEFAULT_FG_COLOR) | |
ed8dad6b | 1708 | tty_toggle_highlight (tty); |
37526b42 | 1709 | } |
86a7d192 GM |
1710 | } |
1711 | } | |
a168702a GM |
1712 | |
1713 | if (face->tty_bold_p) | |
4e6ba4a4 | 1714 | { |
fca177d4 KL |
1715 | if (MAY_USE_WITH_COLORS_P (tty, NC_BOLD)) |
1716 | OUTPUT1_IF (tty, tty->TS_enter_bold_mode); | |
4e6ba4a4 | 1717 | } |
a168702a | 1718 | else if (face->tty_dim_p) |
fca177d4 KL |
1719 | if (MAY_USE_WITH_COLORS_P (tty, NC_DIM)) |
1720 | OUTPUT1_IF (tty, tty->TS_enter_dim_mode); | |
a168702a GM |
1721 | |
1722 | /* Alternate charset and blinking not yet used. */ | |
4e6ba4a4 | 1723 | if (face->tty_alt_charset_p |
fca177d4 KL |
1724 | && MAY_USE_WITH_COLORS_P (tty, NC_ALT_CHARSET)) |
1725 | OUTPUT1_IF (tty, tty->TS_enter_alt_charset_mode); | |
a168702a | 1726 | |
4e6ba4a4 | 1727 | if (face->tty_blinking_p |
fca177d4 KL |
1728 | && MAY_USE_WITH_COLORS_P (tty, NC_BLINK)) |
1729 | OUTPUT1_IF (tty, tty->TS_enter_blink_mode); | |
a168702a | 1730 | |
fca177d4 KL |
1731 | if (face->tty_underline_p && MAY_USE_WITH_COLORS_P (tty, NC_UNDERLINE)) |
1732 | OUTPUT1_IF (tty, tty->TS_enter_underline_mode); | |
a168702a | 1733 | |
fca177d4 | 1734 | if (tty->TN_max_colors > 0) |
a168702a | 1735 | { |
753d161b | 1736 | char *ts, *p; |
177c0ea7 | 1737 | |
fbf34973 | 1738 | ts = tty->standout_mode ? tty->TS_set_background : tty->TS_set_foreground; |
753d161b | 1739 | if (fg >= 0 && ts) |
a168702a | 1740 | { |
fbf34973 | 1741 | p = tparam (ts, NULL, 0, (int) fg); |
6548cf00 | 1742 | OUTPUT (tty, p); |
a168702a GM |
1743 | xfree (p); |
1744 | } | |
1745 | ||
fbf34973 | 1746 | ts = tty->standout_mode ? tty->TS_set_foreground : tty->TS_set_background; |
753d161b | 1747 | if (bg >= 0 && ts) |
a168702a | 1748 | { |
fbf34973 | 1749 | p = tparam (ts, NULL, 0, (int) bg); |
6548cf00 | 1750 | OUTPUT (tty, p); |
a168702a GM |
1751 | xfree (p); |
1752 | } | |
1753 | } | |
1754 | } | |
177c0ea7 | 1755 | |
a168702a GM |
1756 | |
1757 | /* Turn off appearances of face FACE_ID on tty frame F. */ | |
1758 | ||
1759 | static void | |
1760 | turn_off_face (f, face_id) | |
1761 | struct frame *f; | |
1762 | int face_id; | |
1763 | { | |
1764 | struct face *face = FACE_FROM_ID (f, face_id); | |
28d7d09f | 1765 | struct tty_display_info *tty = FRAME_TTY (f); |
a168702a GM |
1766 | |
1767 | xassert (face != NULL); | |
1768 | ||
fca177d4 | 1769 | if (tty->TS_exit_attribute_mode) |
a168702a GM |
1770 | { |
1771 | /* Capability "me" will turn off appearance modes double-bright, | |
1772 | half-bright, reverse-video, standout, underline. It may or | |
1773 | may not turn off alt-char-mode. */ | |
1774 | if (face->tty_bold_p | |
1775 | || face->tty_dim_p | |
1776 | || face->tty_reverse_p | |
1777 | || face->tty_alt_charset_p | |
1778 | || face->tty_blinking_p | |
1779 | || face->tty_underline_p) | |
65aa5e85 | 1780 | { |
fca177d4 KL |
1781 | OUTPUT1_IF (tty, tty->TS_exit_attribute_mode); |
1782 | if (strcmp (tty->TS_exit_attribute_mode, tty->TS_end_standout_mode) == 0) | |
1783 | tty->standout_mode = 0; | |
65aa5e85 | 1784 | } |
a168702a GM |
1785 | |
1786 | if (face->tty_alt_charset_p) | |
fca177d4 | 1787 | OUTPUT_IF (tty, tty->TS_exit_alt_charset_mode); |
a168702a GM |
1788 | } |
1789 | else | |
1790 | { | |
1791 | /* If we don't have "me" we can only have those appearances | |
1792 | that have exit sequences defined. */ | |
1793 | if (face->tty_alt_charset_p) | |
fca177d4 | 1794 | OUTPUT_IF (tty, tty->TS_exit_alt_charset_mode); |
a168702a | 1795 | |
54800acb | 1796 | if (face->tty_underline_p) |
fca177d4 | 1797 | OUTPUT_IF (tty, tty->TS_exit_underline_mode); |
a168702a GM |
1798 | } |
1799 | ||
1800 | /* Switch back to default colors. */ | |
fca177d4 | 1801 | if (tty->TN_max_colors > 0 |
f9d2fdc4 EZ |
1802 | && ((face->foreground != FACE_TTY_DEFAULT_COLOR |
1803 | && face->foreground != FACE_TTY_DEFAULT_FG_COLOR) | |
1804 | || (face->background != FACE_TTY_DEFAULT_COLOR | |
1805 | && face->background != FACE_TTY_DEFAULT_BG_COLOR))) | |
fca177d4 | 1806 | OUTPUT1_IF (tty, tty->TS_orig_pair); |
a168702a | 1807 | } |
177c0ea7 JB |
1808 | |
1809 | ||
b63a55ac MB |
1810 | /* Return non-zero if the terminal on frame F supports all of the |
1811 | capabilities in CAPS simultaneously, with foreground and background | |
1812 | colors FG and BG. */ | |
1813 | ||
4a8130f2 | 1814 | int |
fca177d4 | 1815 | tty_capable_p (tty, caps, fg, bg) |
28d7d09f | 1816 | struct tty_display_info *tty; |
b63a55ac MB |
1817 | unsigned caps; |
1818 | unsigned long fg, bg; | |
1819 | { | |
fca177d4 KL |
1820 | #define TTY_CAPABLE_P_TRY(tty, cap, TS, NC_bit) \ |
1821 | if ((caps & (cap)) && (!(TS) || !MAY_USE_WITH_COLORS_P(tty, NC_bit))) \ | |
b63a55ac MB |
1822 | return 0; |
1823 | ||
fca177d4 KL |
1824 | TTY_CAPABLE_P_TRY (tty, TTY_CAP_INVERSE, tty->TS_standout_mode, NC_REVERSE); |
1825 | TTY_CAPABLE_P_TRY (tty, TTY_CAP_UNDERLINE, tty->TS_enter_underline_mode, NC_UNDERLINE); | |
1826 | TTY_CAPABLE_P_TRY (tty, TTY_CAP_BOLD, tty->TS_enter_bold_mode, NC_BOLD); | |
1827 | TTY_CAPABLE_P_TRY (tty, TTY_CAP_DIM, tty->TS_enter_dim_mode, NC_DIM); | |
1828 | TTY_CAPABLE_P_TRY (tty, TTY_CAP_BLINK, tty->TS_enter_blink_mode, NC_BLINK); | |
1829 | TTY_CAPABLE_P_TRY (tty, TTY_CAP_ALT_CHARSET, tty->TS_enter_alt_charset_mode, NC_ALT_CHARSET); | |
b63a55ac MB |
1830 | |
1831 | /* We can do it! */ | |
1832 | return 1; | |
1833 | } | |
1834 | ||
a168702a GM |
1835 | /* Return non-zero if the terminal is capable to display colors. */ |
1836 | ||
1837 | DEFUN ("tty-display-color-p", Ftty_display_color_p, Stty_display_color_p, | |
981e4297 | 1838 | 0, 1, 0, |
6ed8eeff KL |
1839 | doc: /* Return non-nil if the tty device TERMINAL can display colors. |
1840 | ||
1841 | TERMINAL can be a terminal id, a frame or nil (meaning the selected | |
1842 | frame's terminal). This function always returns nil if TERMINAL | |
1843 | is not on a tty device. */) | |
1844 | (terminal) | |
1845 | Lisp_Object terminal; | |
a168702a | 1846 | { |
717a00ef | 1847 | struct terminal *t = get_tty_terminal (terminal, 0); |
6ed8eeff | 1848 | if (!t) |
428a555e | 1849 | return Qnil; |
3224dac1 | 1850 | else |
6ed8eeff | 1851 | return t->display_info.tty->TN_max_colors > 0 ? Qt : Qnil; |
a168702a GM |
1852 | } |
1853 | ||
bfa62f96 EZ |
1854 | /* Return the number of supported colors. */ |
1855 | DEFUN ("tty-display-color-cells", Ftty_display_color_cells, | |
1856 | Stty_display_color_cells, 0, 1, 0, | |
6ed8eeff KL |
1857 | doc: /* Return the number of colors supported by the tty device TERMINAL. |
1858 | ||
1859 | TERMINAL can be a terminal id, a frame or nil (meaning the selected | |
717a00ef | 1860 | frame's terminal). This function always returns 0 if TERMINAL |
6ed8eeff KL |
1861 | is not on a tty device. */) |
1862 | (terminal) | |
1863 | Lisp_Object terminal; | |
bfa62f96 | 1864 | { |
717a00ef | 1865 | struct terminal *t = get_tty_terminal (terminal, 0); |
6ed8eeff | 1866 | if (!t) |
8c8d5f35 | 1867 | return make_number (0); |
3224dac1 | 1868 | else |
6ed8eeff | 1869 | return make_number (t->display_info.tty->TN_max_colors); |
bfa62f96 EZ |
1870 | } |
1871 | ||
ace28297 | 1872 | #ifndef WINDOWSNT |
a168702a | 1873 | |
ace28297 EZ |
1874 | /* Save or restore the default color-related capabilities of this |
1875 | terminal. */ | |
1876 | static void | |
28d7d09f | 1877 | tty_default_color_capabilities (struct tty_display_info *tty, int save) |
ace28297 EZ |
1878 | { |
1879 | static char | |
1880 | *default_orig_pair, *default_set_foreground, *default_set_background; | |
1881 | static int default_max_colors, default_max_pairs, default_no_color_video; | |
1882 | ||
1883 | if (save) | |
1884 | { | |
1885 | if (default_orig_pair) | |
1886 | xfree (default_orig_pair); | |
fca177d4 | 1887 | default_orig_pair = tty->TS_orig_pair ? xstrdup (tty->TS_orig_pair) : NULL; |
ace28297 EZ |
1888 | |
1889 | if (default_set_foreground) | |
1890 | xfree (default_set_foreground); | |
fca177d4 | 1891 | default_set_foreground = tty->TS_set_foreground ? xstrdup (tty->TS_set_foreground) |
ace28297 EZ |
1892 | : NULL; |
1893 | ||
1894 | if (default_set_background) | |
1895 | xfree (default_set_background); | |
fca177d4 | 1896 | default_set_background = tty->TS_set_background ? xstrdup (tty->TS_set_background) |
ace28297 EZ |
1897 | : NULL; |
1898 | ||
fca177d4 KL |
1899 | default_max_colors = tty->TN_max_colors; |
1900 | default_max_pairs = tty->TN_max_pairs; | |
1901 | default_no_color_video = tty->TN_no_color_video; | |
ace28297 EZ |
1902 | } |
1903 | else | |
1904 | { | |
fca177d4 KL |
1905 | tty->TS_orig_pair = default_orig_pair; |
1906 | tty->TS_set_foreground = default_set_foreground; | |
1907 | tty->TS_set_background = default_set_background; | |
1908 | tty->TN_max_colors = default_max_colors; | |
1909 | tty->TN_max_pairs = default_max_pairs; | |
1910 | tty->TN_no_color_video = default_no_color_video; | |
ace28297 EZ |
1911 | } |
1912 | } | |
1913 | ||
1914 | /* Setup one of the standard tty color schemes according to MODE. | |
1915 | MODE's value is generally the number of colors which we want to | |
1916 | support; zero means set up for the default capabilities, the ones | |
a4c6993d | 1917 | we saw at init_tty time; -1 means turn off color support. */ |
ed8dad6b | 1918 | static void |
28d7d09f | 1919 | tty_setup_colors (struct tty_display_info *tty, int mode) |
ace28297 | 1920 | { |
40409f05 EZ |
1921 | /* Canonicalize all negative values of MODE. */ |
1922 | if (mode < -1) | |
1923 | mode = -1; | |
1924 | ||
ace28297 EZ |
1925 | switch (mode) |
1926 | { | |
1927 | case -1: /* no colors at all */ | |
fca177d4 KL |
1928 | tty->TN_max_colors = 0; |
1929 | tty->TN_max_pairs = 0; | |
1930 | tty->TN_no_color_video = 0; | |
1931 | tty->TS_set_foreground = tty->TS_set_background = tty->TS_orig_pair = NULL; | |
ace28297 EZ |
1932 | break; |
1933 | case 0: /* default colors, if any */ | |
1934 | default: | |
fca177d4 | 1935 | tty_default_color_capabilities (tty, 0); |
ace28297 EZ |
1936 | break; |
1937 | case 8: /* 8 standard ANSI colors */ | |
fca177d4 | 1938 | tty->TS_orig_pair = "\033[0m"; |
ace28297 | 1939 | #ifdef TERMINFO |
fca177d4 KL |
1940 | tty->TS_set_foreground = "\033[3%p1%dm"; |
1941 | tty->TS_set_background = "\033[4%p1%dm"; | |
ace28297 | 1942 | #else |
fca177d4 KL |
1943 | tty->TS_set_foreground = "\033[3%dm"; |
1944 | tty->TS_set_background = "\033[4%dm"; | |
ace28297 | 1945 | #endif |
fca177d4 KL |
1946 | tty->TN_max_colors = 8; |
1947 | tty->TN_max_pairs = 64; | |
1948 | tty->TN_no_color_video = 0; | |
ace28297 EZ |
1949 | break; |
1950 | } | |
1951 | } | |
1952 | ||
1953 | void | |
1954 | set_tty_color_mode (f, val) | |
1955 | struct frame *f; | |
1956 | Lisp_Object val; | |
1957 | { | |
dfc7a077 | 1958 | Lisp_Object color_mode_spec, current_mode_spec; |
ace28297 EZ |
1959 | Lisp_Object color_mode, current_mode; |
1960 | int mode, old_mode; | |
1961 | extern Lisp_Object Qtty_color_mode; | |
1962 | Lisp_Object tty_color_mode_alist; | |
1963 | ||
1964 | tty_color_mode_alist = Fintern_soft (build_string ("tty-color-mode-alist"), | |
1965 | Qnil); | |
1966 | ||
9ac61a89 | 1967 | if (INTEGERP (val)) |
ace28297 EZ |
1968 | color_mode = val; |
1969 | else | |
1970 | { | |
1971 | if (NILP (tty_color_mode_alist)) | |
1972 | color_mode_spec = Qnil; | |
1973 | else | |
1974 | color_mode_spec = Fassq (val, XSYMBOL (tty_color_mode_alist)->value); | |
ace28297 EZ |
1975 | |
1976 | if (CONSP (color_mode_spec)) | |
1977 | color_mode = XCDR (color_mode_spec); | |
1978 | else | |
1979 | color_mode = Qnil; | |
1980 | } | |
545d91d5 RS |
1981 | |
1982 | current_mode_spec = assq_no_quit (Qtty_color_mode, f->param_alist); | |
1983 | ||
ace28297 EZ |
1984 | if (CONSP (current_mode_spec)) |
1985 | current_mode = XCDR (current_mode_spec); | |
1986 | else | |
1987 | current_mode = Qnil; | |
9ac61a89 | 1988 | if (INTEGERP (color_mode)) |
ace28297 EZ |
1989 | mode = XINT (color_mode); |
1990 | else | |
1991 | mode = 0; /* meaning default */ | |
9ac61a89 | 1992 | if (INTEGERP (current_mode)) |
ace28297 EZ |
1993 | old_mode = XINT (current_mode); |
1994 | else | |
1995 | old_mode = 0; | |
1996 | ||
1997 | if (mode != old_mode) | |
1998 | { | |
fca177d4 | 1999 | tty_setup_colors (FRAME_TTY (f), mode); |
ace28297 EZ |
2000 | /* This recomputes all the faces given the new color |
2001 | definitions. */ | |
2002 | call0 (intern ("tty-set-up-initial-frame-faces")); | |
2003 | redraw_frame (f); | |
2004 | } | |
2005 | } | |
2006 | ||
2007 | #endif /* !WINDOWSNT */ | |
a168702a GM |
2008 | |
2009 | \f | |
28d440ab | 2010 | |
6ed8eeff | 2011 | /* Return the tty display object specified by TERMINAL. */ |
b6660415 | 2012 | |
6ed8eeff | 2013 | struct terminal * |
717a00ef | 2014 | get_tty_terminal (Lisp_Object terminal, int throw) |
b6660415 | 2015 | { |
717a00ef | 2016 | struct terminal *t = get_terminal (terminal, throw); |
62af879c | 2017 | |
6ed8eeff | 2018 | if (t && t->type == output_initial) |
717a00ef | 2019 | return NULL; |
d7e4838f | 2020 | |
6ed8eeff | 2021 | if (t && t->type != output_termcap) |
717a00ef KL |
2022 | { |
2023 | if (throw) | |
2024 | error ("Device %d is not a termcap terminal device", t->id); | |
2025 | else | |
2026 | return NULL; | |
2027 | } | |
b6660415 | 2028 | |
6ed8eeff | 2029 | return t; |
b6660415 KL |
2030 | } |
2031 | ||
ab797f65 KL |
2032 | /* Return an active termcap device that uses the tty device with the |
2033 | given name. | |
b6660415 | 2034 | |
7e59217d | 2035 | This function ignores suspended devices. |
da8e1115 KL |
2036 | |
2037 | Returns NULL if the named terminal device is not opened. */ | |
2038 | ||
6ed8eeff | 2039 | struct terminal * |
7e59217d | 2040 | get_named_tty (name) |
28d440ab KL |
2041 | char *name; |
2042 | { | |
6ed8eeff KL |
2043 | struct terminal *t; |
2044 | ||
ab797f65 KL |
2045 | if (!name) |
2046 | abort (); | |
2047 | ||
2048 | for (t = terminal_list; t; t = t->next_terminal) | |
2049 | { | |
2050 | if (t->type == output_termcap | |
2051 | && !strcmp (t->display_info.tty->name, name) | |
2052 | && TERMINAL_ACTIVE_P (t)) | |
2053 | return t; | |
2054 | } | |
28d440ab KL |
2055 | |
2056 | return 0; | |
2057 | } | |
2058 | ||
2059 | \f | |
6ed8eeff KL |
2060 | DEFUN ("tty-type", Ftty_type, Stty_type, 0, 1, 0, |
2061 | doc: /* Return the type of the tty device that TERMINAL uses. | |
ab797f65 | 2062 | Returns nil if TERMINAL is not on a tty device. |
a3fbb897 | 2063 | |
6ed8eeff KL |
2064 | TERMINAL can be a terminal id, a frame or nil (meaning the selected |
2065 | frame's terminal). */) | |
2066 | (terminal) | |
2067 | Lisp_Object terminal; | |
b6660415 | 2068 | { |
6ed8eeff | 2069 | struct terminal *t = get_terminal (terminal, 1); |
819b8f00 | 2070 | |
6ed8eeff | 2071 | if (t->type != output_termcap) |
ab797f65 KL |
2072 | return Qnil; |
2073 | ||
6ed8eeff KL |
2074 | if (t->display_info.tty->type) |
2075 | return build_string (t->display_info.tty->type); | |
819b8f00 KL |
2076 | else |
2077 | return Qnil; | |
2078 | } | |
2079 | ||
6ed8eeff KL |
2080 | DEFUN ("controlling-tty-p", Fcontrolling_tty_p, Scontrolling_tty_p, 0, 1, 0, |
2081 | doc: /* Return non-nil if TERMINAL is on the controlling tty of the Emacs process. | |
a3fbb897 | 2082 | |
6ed8eeff KL |
2083 | TERMINAL can be a terminal id, a frame or nil (meaning the selected |
2084 | frame's terminal). This function always returns nil if TERMINAL | |
2085 | is not on a tty device. */) | |
2086 | (terminal) | |
2087 | Lisp_Object terminal; | |
4a933ef8 | 2088 | { |
6ed8eeff | 2089 | struct terminal *t = get_terminal (terminal, 1); |
4a933ef8 | 2090 | |
59b3194c | 2091 | if (t->type != output_termcap || strcmp (t->display_info.tty->name, "/dev/tty")) |
4a933ef8 KL |
2092 | return Qnil; |
2093 | else | |
2094 | return Qt; | |
2095 | } | |
2096 | ||
a3fbb897 | 2097 | DEFUN ("tty-no-underline", Ftty_no_underline, Stty_no_underline, 0, 1, 0, |
6ed8eeff | 2098 | doc: /* Declare that the tty used by TERMINAL does not handle underlining. |
a3fbb897 KL |
2099 | This is used to override the terminfo data, for certain terminals that |
2100 | do not really do underlining, but say that they do. This function has | |
6ed8eeff | 2101 | no effect if used on a non-tty terminal. |
a3fbb897 | 2102 | |
6ed8eeff KL |
2103 | TERMINAL can be a terminal id, a frame or nil (meaning the selected |
2104 | frame's terminal). This function always returns nil if TERMINAL | |
2105 | is not on a tty device. */) | |
2106 | (terminal) | |
2107 | Lisp_Object terminal; | |
a3fbb897 | 2108 | { |
6ed8eeff | 2109 | struct terminal *t = get_terminal (terminal, 1); |
a3fbb897 | 2110 | |
6ed8eeff KL |
2111 | if (t->type == output_termcap) |
2112 | t->display_info.tty->TS_enter_underline_mode = 0; | |
a3fbb897 KL |
2113 | return Qnil; |
2114 | } | |
2115 | ||
ed8dad6b KL |
2116 | \f |
2117 | ||
2118 | DEFUN ("suspend-tty", Fsuspend_tty, Ssuspend_tty, 0, 1, 0, | |
2119 | doc: /* Suspend the terminal device TTY. | |
2120 | ||
2121 | The device is restored to its default state, and Emacs ceases all | |
2122 | access to the tty device. Frames that use the device are not deleted, | |
2123 | but input is not read from them and if they change, their display is | |
2124 | not updated. | |
2125 | ||
2126 | TTY may be a terminal id, a frame, or nil for the terminal device of | |
2127 | the currently selected frame. | |
2128 | ||
2129 | This function runs `suspend-tty-functions' after suspending the | |
2130 | device. The functions are run with one arg, the id of the suspended | |
2131 | terminal device. | |
2132 | ||
2133 | `suspend-tty' does nothing if it is called on a device that is already | |
2134 | suspended. | |
2135 | ||
2136 | A suspended tty may be resumed by calling `resume-tty' on it. */) | |
2137 | (tty) | |
2138 | Lisp_Object tty; | |
2139 | { | |
717a00ef | 2140 | struct terminal *t = get_tty_terminal (tty, 1); |
ed8dad6b KL |
2141 | FILE *f; |
2142 | ||
6ed8eeff | 2143 | if (!t) |
ed8dad6b KL |
2144 | error ("Unknown tty device"); |
2145 | ||
6ed8eeff | 2146 | f = t->display_info.tty->input; |
ed8dad6b KL |
2147 | |
2148 | if (f) | |
2149 | { | |
6ed8eeff | 2150 | reset_sys_modes (t->display_info.tty); |
ed8dad6b KL |
2151 | |
2152 | delete_keyboard_wait_descriptor (fileno (f)); | |
2153 | ||
2154 | fclose (f); | |
6ed8eeff KL |
2155 | if (f != t->display_info.tty->output) |
2156 | fclose (t->display_info.tty->output); | |
ed8dad6b | 2157 | |
6ed8eeff KL |
2158 | t->display_info.tty->input = 0; |
2159 | t->display_info.tty->output = 0; | |
ed8dad6b | 2160 | |
6ed8eeff KL |
2161 | if (FRAMEP (t->display_info.tty->top_frame)) |
2162 | FRAME_SET_VISIBLE (XFRAME (t->display_info.tty->top_frame), 0); | |
ed8dad6b KL |
2163 | |
2164 | /* Run `suspend-tty-functions'. */ | |
2165 | if (!NILP (Vrun_hooks)) | |
2166 | { | |
2167 | Lisp_Object args[2]; | |
2168 | args[0] = intern ("suspend-tty-functions"); | |
6ed8eeff | 2169 | args[1] = make_number (t->id); |
ed8dad6b KL |
2170 | Frun_hook_with_args (2, args); |
2171 | } | |
2172 | } | |
2173 | ||
4a665758 KL |
2174 | /* Clear display hooks to prevent further output. */ |
2175 | clear_tty_hooks (t); | |
2176 | ||
ed8dad6b KL |
2177 | return Qnil; |
2178 | } | |
2179 | ||
2180 | DEFUN ("resume-tty", Fresume_tty, Sresume_tty, 0, 1, 0, | |
2181 | doc: /* Resume the previously suspended terminal device TTY. | |
2182 | The terminal is opened and reinitialized. Frames that are on the | |
6ed8eeff | 2183 | suspended terminal are revived. |
ed8dad6b | 2184 | |
6ed8eeff KL |
2185 | It is an error to resume a terminal while another terminal is active |
2186 | on the same device. | |
ed8dad6b | 2187 | |
6ed8eeff KL |
2188 | This function runs `resume-tty-functions' after resuming the terminal. |
2189 | The functions are run with one arg, the id of the resumed terminal | |
ed8dad6b KL |
2190 | device. |
2191 | ||
2192 | `resume-tty' does nothing if it is called on a device that is not | |
2193 | suspended. | |
2194 | ||
6ed8eeff KL |
2195 | TTY may be a terminal id, a frame, or nil for the terminal device of |
2196 | the currently selected frame. */) | |
ed8dad6b KL |
2197 | (tty) |
2198 | Lisp_Object tty; | |
2199 | { | |
717a00ef | 2200 | struct terminal *t = get_tty_terminal (tty, 1); |
ed8dad6b KL |
2201 | int fd; |
2202 | ||
6ed8eeff | 2203 | if (!t) |
ed8dad6b KL |
2204 | error ("Unknown tty device"); |
2205 | ||
6ed8eeff | 2206 | if (!t->display_info.tty->input) |
ed8dad6b | 2207 | { |
6ed8eeff | 2208 | if (get_named_tty (t->display_info.tty->name)) |
ed8dad6b KL |
2209 | error ("Cannot resume display while another display is active on the same device"); |
2210 | ||
6ed8eeff | 2211 | fd = emacs_open (t->display_info.tty->name, O_RDWR | O_NOCTTY, 0); |
ed8dad6b | 2212 | |
59b3194c KL |
2213 | if (fd == -1) |
2214 | error ("Can not reopen tty device %s: %s", t->display_info.tty->name, strerror (errno)); | |
ed8dad6b | 2215 | |
59b3194c KL |
2216 | if (strcmp (t->display_info.tty->name, "/dev/tty")) |
2217 | dissociate_if_controlling_tty (fd); | |
ed8dad6b | 2218 | |
6ed8eeff KL |
2219 | t->display_info.tty->output = fdopen (fd, "w+"); |
2220 | t->display_info.tty->input = t->display_info.tty->output; | |
ed8dad6b KL |
2221 | |
2222 | add_keyboard_wait_descriptor (fd); | |
2223 | ||
6ed8eeff KL |
2224 | if (FRAMEP (t->display_info.tty->top_frame)) |
2225 | FRAME_SET_VISIBLE (XFRAME (t->display_info.tty->top_frame), 1); | |
ed8dad6b | 2226 | |
6ed8eeff | 2227 | init_sys_modes (t->display_info.tty); |
ed8dad6b KL |
2228 | |
2229 | /* Run `suspend-tty-functions'. */ | |
2230 | if (!NILP (Vrun_hooks)) | |
2231 | { | |
2232 | Lisp_Object args[2]; | |
2233 | args[0] = intern ("resume-tty-functions"); | |
6ed8eeff | 2234 | args[1] = make_number (t->id); |
ed8dad6b KL |
2235 | Frun_hook_with_args (2, args); |
2236 | } | |
2237 | } | |
2238 | ||
4a665758 KL |
2239 | set_tty_hooks (t); |
2240 | ||
ed8dad6b KL |
2241 | return Qnil; |
2242 | } | |
a3fbb897 | 2243 | |
819b8f00 | 2244 | \f |
a168702a GM |
2245 | /*********************************************************************** |
2246 | Initialization | |
2247 | ***********************************************************************/ | |
2248 | ||
ed8dad6b KL |
2249 | /* Initialize the tty-dependent part of frame F. The frame must |
2250 | already have its device initialized. */ | |
3224dac1 | 2251 | |
ed8dad6b KL |
2252 | void |
2253 | create_tty_output (struct frame *f) | |
28d440ab | 2254 | { |
ed8dad6b KL |
2255 | struct tty_output *t; |
2256 | ||
2257 | if (! FRAME_TERMCAP_P (f)) | |
428a555e KL |
2258 | abort (); |
2259 | ||
ed8dad6b KL |
2260 | t = xmalloc (sizeof (struct tty_output)); |
2261 | bzero (t, sizeof (struct tty_output)); | |
b6660415 | 2262 | |
6ed8eeff | 2263 | t->display_info = FRAME_TERMINAL (f)->display_info.tty; |
bedb9c0e | 2264 | |
ed8dad6b | 2265 | f->output_data.tty = t; |
3224dac1 KL |
2266 | } |
2267 | ||
ed8dad6b | 2268 | /* Delete the tty-dependent part of frame F. */ |
da8e1115 | 2269 | |
ed8dad6b KL |
2270 | static void |
2271 | delete_tty_output (struct frame *f) | |
3224dac1 | 2272 | { |
ed8dad6b | 2273 | if (! FRAME_TERMCAP_P (f)) |
3224dac1 KL |
2274 | abort (); |
2275 | ||
ed8dad6b | 2276 | xfree (f->output_data.tty); |
28d440ab KL |
2277 | } |
2278 | ||
ed8dad6b KL |
2279 | \f |
2280 | ||
4a665758 KL |
2281 | static void |
2282 | clear_tty_hooks (struct terminal *terminal) | |
2283 | { | |
2284 | terminal->rif = 0; | |
2285 | terminal->cursor_to_hook = 0; | |
2286 | terminal->raw_cursor_to_hook = 0; | |
2287 | terminal->clear_to_end_hook = 0; | |
2288 | terminal->clear_frame_hook = 0; | |
2289 | terminal->clear_end_of_line_hook = 0; | |
2290 | terminal->ins_del_lines_hook = 0; | |
2291 | terminal->insert_glyphs_hook = 0; | |
2292 | terminal->write_glyphs_hook = 0; | |
2293 | terminal->delete_glyphs_hook = 0; | |
2294 | terminal->ring_bell_hook = 0; | |
2295 | terminal->reset_terminal_modes_hook = 0; | |
2296 | terminal->set_terminal_modes_hook = 0; | |
2297 | terminal->update_begin_hook = 0; | |
2298 | terminal->update_end_hook = 0; | |
2299 | terminal->set_terminal_window_hook = 0; | |
2300 | terminal->mouse_position_hook = 0; | |
2301 | terminal->frame_rehighlight_hook = 0; | |
2302 | terminal->frame_raise_lower_hook = 0; | |
2303 | terminal->set_vertical_scroll_bar_hook = 0; | |
2304 | terminal->condemn_scroll_bars_hook = 0; | |
2305 | terminal->redeem_scroll_bar_hook = 0; | |
2306 | terminal->judge_scroll_bars_hook = 0; | |
2307 | terminal->read_socket_hook = 0; | |
2308 | terminal->frame_up_to_date_hook = 0; | |
2309 | ||
2310 | /* Leave these two set, or suspended frames are not deleted | |
2311 | correctly. */ | |
2312 | terminal->delete_frame_hook = &delete_tty_output; | |
2313 | terminal->delete_terminal_hook = &delete_tty; | |
2314 | } | |
2315 | ||
2316 | static void | |
2317 | set_tty_hooks (struct terminal *terminal) | |
2318 | { | |
2319 | terminal->rif = 0; /* ttys don't support window-based redisplay. */ | |
2320 | ||
2321 | terminal->cursor_to_hook = &tty_cursor_to; | |
2322 | terminal->raw_cursor_to_hook = &tty_raw_cursor_to; | |
2323 | ||
2324 | terminal->clear_to_end_hook = &tty_clear_to_end; | |
2325 | terminal->clear_frame_hook = &tty_clear_frame; | |
2326 | terminal->clear_end_of_line_hook = &tty_clear_end_of_line; | |
2327 | ||
2328 | terminal->ins_del_lines_hook = &tty_ins_del_lines; | |
2329 | ||
2330 | terminal->insert_glyphs_hook = &tty_insert_glyphs; | |
2331 | terminal->write_glyphs_hook = &tty_write_glyphs; | |
2332 | terminal->delete_glyphs_hook = &tty_delete_glyphs; | |
2333 | ||
2334 | terminal->ring_bell_hook = &tty_ring_bell; | |
2335 | ||
2336 | terminal->reset_terminal_modes_hook = &tty_reset_terminal_modes; | |
2337 | terminal->set_terminal_modes_hook = &tty_set_terminal_modes; | |
2338 | terminal->update_begin_hook = 0; /* Not needed. */ | |
2339 | terminal->update_end_hook = &tty_update_end; | |
2340 | terminal->set_terminal_window_hook = &tty_set_terminal_window; | |
2341 | ||
2342 | terminal->mouse_position_hook = 0; /* Not needed. */ | |
2343 | terminal->frame_rehighlight_hook = 0; /* Not needed. */ | |
2344 | terminal->frame_raise_lower_hook = 0; /* Not needed. */ | |
2345 | ||
2346 | terminal->set_vertical_scroll_bar_hook = 0; /* Not needed. */ | |
2347 | terminal->condemn_scroll_bars_hook = 0; /* Not needed. */ | |
2348 | terminal->redeem_scroll_bar_hook = 0; /* Not needed. */ | |
2349 | terminal->judge_scroll_bars_hook = 0; /* Not needed. */ | |
2350 | ||
2351 | terminal->read_socket_hook = &tty_read_avail_input; /* keyboard.c */ | |
2352 | terminal->frame_up_to_date_hook = 0; /* Not needed. */ | |
2353 | ||
2354 | terminal->delete_frame_hook = &delete_tty_output; | |
2355 | terminal->delete_terminal_hook = &delete_tty; | |
2356 | } | |
2357 | ||
03a1d6bd | 2358 | /* Drop the controlling terminal if fd is the same device. */ |
ed8dad6b | 2359 | static void |
03a1d6bd KL |
2360 | dissociate_if_controlling_tty (int fd) |
2361 | { | |
03a1d6bd | 2362 | int pgid; |
8516815b | 2363 | EMACS_GET_TTY_PGRP (fd, &pgid); /* If tcgetpgrp succeeds, fd is the ctty. */ |
03a1d6bd KL |
2364 | if (pgid != -1) |
2365 | { | |
8516815b | 2366 | #if defined (USG) && !defined (BSD_PGRPS) |
03a1d6bd KL |
2367 | setpgrp (); |
2368 | no_controlling_tty = 1; | |
03a1d6bd KL |
2369 | #else |
2370 | #ifdef TIOCNOTTY /* Try BSD ioctls. */ | |
8516815b KL |
2371 | sigblock (sigmask (SIGTTOU)); |
2372 | fd = emacs_open ("/dev/tty", O_RDWR, 0); | |
2373 | if (fd != -1 && ioctl (fd, TIOCNOTTY, 0) != -1) | |
2374 | { | |
2375 | no_controlling_tty = 1; | |
2376 | } | |
2377 | if (fd != -1) | |
2378 | emacs_close (fd); | |
2379 | sigunblock (sigmask (SIGTTOU)); | |
03a1d6bd | 2380 | #else |
8516815b KL |
2381 | /* Unknown system. */ |
2382 | croak (); | |
03a1d6bd KL |
2383 | #endif /* ! TIOCNOTTY */ |
2384 | #endif /* ! USG */ | |
71a96040 | 2385 | } |
03a1d6bd KL |
2386 | } |
2387 | ||
520c4dfd KL |
2388 | static void maybe_fatal(); |
2389 | ||
3224dac1 KL |
2390 | /* Create a termcap display on the tty device with the given name and |
2391 | type. | |
2392 | ||
ab797f65 | 2393 | If NAME is NULL, then use the controlling tty, i.e., "/dev/tty". |
3224dac1 KL |
2394 | Otherwise NAME should be a path to the tty device file, |
2395 | e.g. "/dev/pts/7". | |
28d440ab | 2396 | |
3224dac1 KL |
2397 | TERMINAL_TYPE is the termcap type of the device, e.g. "vt100". |
2398 | ||
2399 | If MUST_SUCCEED is true, then all errors are fatal. */ | |
da8e1115 | 2400 | |
6ed8eeff | 2401 | struct terminal * |
a4c6993d | 2402 | init_tty (char *name, char *terminal_type, int must_succeed) |
08a24c47 | 2403 | { |
59b3194c | 2404 | char *area = NULL; |
08a24c47 | 2405 | char **address = &area; |
3a06a6d9 | 2406 | char *buffer = NULL; |
5846981b | 2407 | int buffer_size = 4096; |
59b3194c | 2408 | register char *p = NULL; |
08a24c47 | 2409 | int status; |
59b3194c KL |
2410 | struct tty_display_info *tty = NULL; |
2411 | struct terminal *terminal = NULL; | |
2412 | int ctty = 0; /* 1 if asked to open controlling tty. */ | |
28d440ab | 2413 | |
3224dac1 KL |
2414 | if (!terminal_type) |
2415 | maybe_fatal (must_succeed, 0, 0, | |
2416 | "Unknown terminal type", | |
2417 | "Unknown terminal type"); | |
b6660415 | 2418 | |
ab797f65 KL |
2419 | if (name == NULL) |
2420 | name = "/dev/tty"; | |
2421 | if (!strcmp (name, "/dev/tty")) | |
2422 | ctty = 1; | |
2423 | ||
6ed8eeff KL |
2424 | /* If we already have a terminal on the given device, use that. If |
2425 | all such terminals are suspended, create a new one instead. */ | |
a4c6993d | 2426 | /* XXX Perhaps this should be made explicit by having init_tty |
6ed8eeff | 2427 | always create a new terminal and separating terminal and frame |
b6660415 | 2428 | creation on Lisp level. */ |
6ed8eeff KL |
2429 | terminal = get_named_tty (name); |
2430 | if (terminal) | |
2431 | return terminal; | |
428a555e | 2432 | |
6ed8eeff | 2433 | terminal = create_terminal (); |
3224dac1 KL |
2434 | tty = (struct tty_display_info *) xmalloc (sizeof (struct tty_display_info)); |
2435 | bzero (tty, sizeof (struct tty_display_info)); | |
2436 | tty->next = tty_list; | |
2437 | tty_list = tty; | |
428a555e | 2438 | |
6ed8eeff KL |
2439 | terminal->type = output_termcap; |
2440 | terminal->display_info.tty = tty; | |
2441 | tty->terminal = terminal; | |
28d440ab | 2442 | |
7b00d185 KL |
2443 | tty->Wcm = (struct cm *) xmalloc (sizeof (struct cm)); |
2444 | Wcm_clear (tty); | |
daf01701 | 2445 | |
4a665758 | 2446 | set_tty_hooks (terminal); |
428a555e | 2447 | |
59b3194c KL |
2448 | { |
2449 | int fd; | |
2450 | FILE *file; | |
0c72d684 KL |
2451 | |
2452 | #ifdef O_IGNORE_CTTY | |
59b3194c | 2453 | if (!ctty) |
0c72d684 KL |
2454 | /* Open the terminal device. Don't recognize it as our |
2455 | controlling terminal, and don't make it the controlling tty | |
2456 | if we don't have one at the moment. */ | |
2457 | fd = emacs_open (name, O_RDWR | O_IGNORE_CTTY | O_NOCTTY, 0); | |
59b3194c | 2458 | else |
0c72d684 | 2459 | #else |
2666355c | 2460 | /* Alas, O_IGNORE_CTTY is a GNU extension that seems to be only |
59b3194c KL |
2461 | defined on Hurd. On other systems, we need to explicitly |
2462 | dissociate ourselves from the controlling tty when we want to | |
2463 | open a frame on the same terminal. */ | |
0c72d684 | 2464 | fd = emacs_open (name, O_RDWR | O_NOCTTY, 0); |
0c72d684 KL |
2465 | #endif /* O_IGNORE_CTTY */ |
2466 | ||
59b3194c KL |
2467 | if (fd < 0) |
2468 | maybe_fatal (must_succeed, buffer, terminal, | |
2469 | "Could not open file: %s", | |
2470 | "Could not open file: %s", | |
2471 | name); | |
2472 | if (!isatty (fd)) | |
2473 | { | |
2474 | close (fd); | |
2475 | maybe_fatal (must_succeed, buffer, terminal, | |
2476 | "Not a tty device: %s", | |
2477 | "Not a tty device: %s", | |
2478 | name); | |
2479 | } | |
0c72d684 | 2480 | |
59b3194c KL |
2481 | #ifndef O_IGNORE_CTTY |
2482 | if (!ctty) | |
03a1d6bd | 2483 | dissociate_if_controlling_tty (fd); |
59b3194c KL |
2484 | #endif |
2485 | ||
2486 | file = fdopen (fd, "w+"); | |
2487 | tty->name = xstrdup (name); | |
2488 | terminal->name = xstrdup (name); | |
2489 | tty->input = file; | |
2490 | tty->output = file; | |
2491 | } | |
28d440ab | 2492 | |
28d7d09f | 2493 | tty->type = xstrdup (terminal_type); |
28d440ab | 2494 | |
819b8f00 | 2495 | add_keyboard_wait_descriptor (fileno (tty->input)); |
daf01701 | 2496 | |
af645abf KH |
2497 | encode_terminal_bufsize = 0; |
2498 | ||
cb28b9c2 | 2499 | #ifdef WINDOWSNT |
29f27c39 | 2500 | initialize_w32_display (); |
cb28b9c2 | 2501 | |
fca177d4 | 2502 | Wcm_clear (tty); |
cb28b9c2 | 2503 | |
a678d9ff | 2504 | area = (char *) xmalloc (2044); |
cb28b9c2 | 2505 | |
428a555e KL |
2506 | FrameRows (tty) = FRAME_LINES (f); /* XXX */ |
2507 | FrameCols (tty) = FRAME_COLS (f); /* XXX */ | |
2508 | tty->specified_window = FRAME_LINES (f); /* XXX */ | |
cb28b9c2 | 2509 | |
6ed8eeff | 2510 | tty->terminal->delete_in_insert_mode = 1; |
cb28b9c2 | 2511 | |
daf01701 | 2512 | UseTabs (tty) = 0; |
6ed8eeff | 2513 | terminal->scroll_region_ok = 0; |
cb28b9c2 | 2514 | |
7e59217d | 2515 | /* Seems to insert lines when it's not supposed to, messing up the |
6ed8eeff | 2516 | display. In doing a trace, it didn't seem to be called much, so I |
7e59217d | 2517 | don't think we're losing anything by turning it off. */ |
6ed8eeff KL |
2518 | terminal->line_ins_del_ok = 0; |
2519 | terminal->char_ins_del_ok = 1; | |
cb28b9c2 RS |
2520 | |
2521 | baud_rate = 19200; | |
2522 | ||
428a555e KL |
2523 | FRAME_CAN_HAVE_SCROLL_BARS (f) = 0; /* XXX */ |
2524 | FRAME_VERTICAL_SCROLL_BAR_TYPE (f) = vertical_scroll_bar_none; /* XXX */ | |
acfcd5cd | 2525 | TN_max_colors = 16; /* Required to be non-zero for tty-display-color-p */ |
cb28b9c2 | 2526 | |
6ed8eeff | 2527 | return terminal; |
eccec691 | 2528 | #else /* not WINDOWSNT */ |
cb28b9c2 | 2529 | |
6548cf00 | 2530 | Wcm_clear (tty); |
08a24c47 | 2531 | |
3a06a6d9 | 2532 | buffer = (char *) xmalloc (buffer_size); |
03a1d6bd KL |
2533 | |
2534 | /* On some systems, tgetent tries to access the controlling | |
2535 | terminal. */ | |
2536 | sigblock (sigmask (SIGTTOU)); | |
08a24c47 | 2537 | status = tgetent (buffer, terminal_type); |
03a1d6bd KL |
2538 | sigunblock (sigmask (SIGTTOU)); |
2539 | ||
08a24c47 | 2540 | if (status < 0) |
b0347178 KH |
2541 | { |
2542 | #ifdef TERMINFO | |
6ed8eeff | 2543 | maybe_fatal (must_succeed, buffer, terminal, |
3224dac1 KL |
2544 | "Cannot open terminfo database file", |
2545 | "Cannot open terminfo database file"); | |
b0347178 | 2546 | #else |
6ed8eeff | 2547 | maybe_fatal (must_succeed, buffer, terminal, |
3224dac1 KL |
2548 | "Cannot open termcap database file", |
2549 | "Cannot open termcap database file"); | |
b0347178 KH |
2550 | #endif |
2551 | } | |
08a24c47 | 2552 | if (status == 0) |
b0347178 KH |
2553 | { |
2554 | #ifdef TERMINFO | |
6ed8eeff | 2555 | maybe_fatal (must_succeed, buffer, terminal, |
3224dac1 KL |
2556 | "Terminal type %s is not defined", |
2557 | "Terminal type %s is not defined.\n\ | |
0a125897 | 2558 | If that is not the actual type of terminal you have,\n\ |
b0347178 KH |
2559 | use the Bourne shell command `TERM=... export TERM' (C-shell:\n\ |
2560 | `setenv TERM ...') to specify the correct type. It may be necessary\n\ | |
e12c1054 | 2561 | to do `unset TERMINFO' (C-shell: `unsetenv TERMINFO') as well.", |
3224dac1 | 2562 | terminal_type); |
b0347178 | 2563 | #else |
6ed8eeff | 2564 | maybe_fatal (must_succeed, buffer, terminal, |
3224dac1 KL |
2565 | "Terminal type %s is not defined", |
2566 | "Terminal type %s is not defined.\n\ | |
0a125897 | 2567 | If that is not the actual type of terminal you have,\n\ |
c5a9c3e6 RS |
2568 | use the Bourne shell command `TERM=... export TERM' (C-shell:\n\ |
2569 | `setenv TERM ...') to specify the correct type. It may be necessary\n\ | |
e12c1054 | 2570 | to do `unset TERMCAP' (C-shell: `unsetenv TERMCAP') as well.", |
3224dac1 | 2571 | terminal_type); |
b0347178 KH |
2572 | #endif |
2573 | } | |
3a06a6d9 | 2574 | |
f730033e | 2575 | #ifndef TERMINFO |
3a06a6d9 | 2576 | if (strlen (buffer) >= buffer_size) |
08a24c47 | 2577 | abort (); |
f730033e | 2578 | buffer_size = strlen (buffer); |
3dd3a502 | 2579 | #endif |
f730033e | 2580 | area = (char *) xmalloc (buffer_size); |
08a24c47 | 2581 | |
fca177d4 KL |
2582 | tty->TS_ins_line = tgetstr ("al", address); |
2583 | tty->TS_ins_multi_lines = tgetstr ("AL", address); | |
2584 | tty->TS_bell = tgetstr ("bl", address); | |
6548cf00 | 2585 | BackTab (tty) = tgetstr ("bt", address); |
fca177d4 KL |
2586 | tty->TS_clr_to_bottom = tgetstr ("cd", address); |
2587 | tty->TS_clr_line = tgetstr ("ce", address); | |
2588 | tty->TS_clr_frame = tgetstr ("cl", address); | |
6548cf00 KL |
2589 | ColPosition (tty) = NULL; /* tgetstr ("ch", address); */ |
2590 | AbsPosition (tty) = tgetstr ("cm", address); | |
2591 | CR (tty) = tgetstr ("cr", address); | |
fca177d4 KL |
2592 | tty->TS_set_scroll_region = tgetstr ("cs", address); |
2593 | tty->TS_set_scroll_region_1 = tgetstr ("cS", address); | |
6548cf00 | 2594 | RowPosition (tty) = tgetstr ("cv", address); |
fca177d4 KL |
2595 | tty->TS_del_char = tgetstr ("dc", address); |
2596 | tty->TS_del_multi_chars = tgetstr ("DC", address); | |
2597 | tty->TS_del_line = tgetstr ("dl", address); | |
2598 | tty->TS_del_multi_lines = tgetstr ("DL", address); | |
2599 | tty->TS_delete_mode = tgetstr ("dm", address); | |
2600 | tty->TS_end_delete_mode = tgetstr ("ed", address); | |
2601 | tty->TS_end_insert_mode = tgetstr ("ei", address); | |
6548cf00 | 2602 | Home (tty) = tgetstr ("ho", address); |
fca177d4 KL |
2603 | tty->TS_ins_char = tgetstr ("ic", address); |
2604 | tty->TS_ins_multi_chars = tgetstr ("IC", address); | |
2605 | tty->TS_insert_mode = tgetstr ("im", address); | |
2606 | tty->TS_pad_inserted_char = tgetstr ("ip", address); | |
2607 | tty->TS_end_keypad_mode = tgetstr ("ke", address); | |
2608 | tty->TS_keypad_mode = tgetstr ("ks", address); | |
6548cf00 KL |
2609 | LastLine (tty) = tgetstr ("ll", address); |
2610 | Right (tty) = tgetstr ("nd", address); | |
2611 | Down (tty) = tgetstr ("do", address); | |
2612 | if (!Down (tty)) | |
2613 | Down (tty) = tgetstr ("nl", address); /* Obsolete name for "do" */ | |
08a24c47 JB |
2614 | #ifdef VMS |
2615 | /* VMS puts a carriage return before each linefeed, | |
2616 | so it is not safe to use linefeeds. */ | |
6548cf00 KL |
2617 | if (Down (tty) && Down (tty)[0] == '\n' && Down (tty)[1] == '\0') |
2618 | Down (tty) = 0; | |
08a24c47 JB |
2619 | #endif /* VMS */ |
2620 | if (tgetflag ("bs")) | |
6548cf00 | 2621 | Left (tty) = "\b"; /* can't possibly be longer! */ |
08a24c47 | 2622 | else /* (Actually, "bs" is obsolete...) */ |
6548cf00 KL |
2623 | Left (tty) = tgetstr ("le", address); |
2624 | if (!Left (tty)) | |
2625 | Left (tty) = tgetstr ("bc", address); /* Obsolete name for "le" */ | |
fca177d4 KL |
2626 | tty->TS_pad_char = tgetstr ("pc", address); |
2627 | tty->TS_repeat = tgetstr ("rp", address); | |
2628 | tty->TS_end_standout_mode = tgetstr ("se", address); | |
2629 | tty->TS_fwd_scroll = tgetstr ("sf", address); | |
2630 | tty->TS_standout_mode = tgetstr ("so", address); | |
2631 | tty->TS_rev_scroll = tgetstr ("sr", address); | |
6548cf00 | 2632 | tty->Wcm->cm_tab = tgetstr ("ta", address); |
fca177d4 KL |
2633 | tty->TS_end_termcap_modes = tgetstr ("te", address); |
2634 | tty->TS_termcap_modes = tgetstr ("ti", address); | |
6548cf00 | 2635 | Up (tty) = tgetstr ("up", address); |
fca177d4 KL |
2636 | tty->TS_visible_bell = tgetstr ("vb", address); |
2637 | tty->TS_cursor_normal = tgetstr ("ve", address); | |
2638 | tty->TS_cursor_visible = tgetstr ("vs", address); | |
2639 | tty->TS_cursor_invisible = tgetstr ("vi", address); | |
2640 | tty->TS_set_window = tgetstr ("wi", address); | |
2641 | ||
2642 | tty->TS_enter_underline_mode = tgetstr ("us", address); | |
2643 | tty->TS_exit_underline_mode = tgetstr ("ue", address); | |
2644 | tty->TS_enter_bold_mode = tgetstr ("md", address); | |
2645 | tty->TS_enter_dim_mode = tgetstr ("mh", address); | |
2646 | tty->TS_enter_blink_mode = tgetstr ("mb", address); | |
2647 | tty->TS_enter_reverse_mode = tgetstr ("mr", address); | |
2648 | tty->TS_enter_alt_charset_mode = tgetstr ("as", address); | |
2649 | tty->TS_exit_alt_charset_mode = tgetstr ("ae", address); | |
2650 | tty->TS_exit_attribute_mode = tgetstr ("me", address); | |
177c0ea7 | 2651 | |
6548cf00 KL |
2652 | MultiUp (tty) = tgetstr ("UP", address); |
2653 | MultiDown (tty) = tgetstr ("DO", address); | |
2654 | MultiLeft (tty) = tgetstr ("LE", address); | |
2655 | MultiRight (tty) = tgetstr ("RI", address); | |
08a24c47 | 2656 | |
e7f90eab GM |
2657 | /* SVr4/ANSI color suppert. If "op" isn't available, don't support |
2658 | color because we can't switch back to the default foreground and | |
2659 | background. */ | |
fca177d4 KL |
2660 | tty->TS_orig_pair = tgetstr ("op", address); |
2661 | if (tty->TS_orig_pair) | |
a168702a | 2662 | { |
fca177d4 KL |
2663 | tty->TS_set_foreground = tgetstr ("AF", address); |
2664 | tty->TS_set_background = tgetstr ("AB", address); | |
2665 | if (!tty->TS_set_foreground) | |
e7f90eab GM |
2666 | { |
2667 | /* SVr4. */ | |
fca177d4 KL |
2668 | tty->TS_set_foreground = tgetstr ("Sf", address); |
2669 | tty->TS_set_background = tgetstr ("Sb", address); | |
e7f90eab | 2670 | } |
177c0ea7 | 2671 | |
fca177d4 KL |
2672 | tty->TN_max_colors = tgetnum ("Co"); |
2673 | tty->TN_max_pairs = tgetnum ("pa"); | |
177c0ea7 | 2674 | |
fca177d4 KL |
2675 | tty->TN_no_color_video = tgetnum ("NC"); |
2676 | if (tty->TN_no_color_video == -1) | |
2677 | tty->TN_no_color_video = 0; | |
a168702a | 2678 | } |
a168702a | 2679 | |
fca177d4 | 2680 | tty_default_color_capabilities (tty, 1); |
ace28297 | 2681 | |
6548cf00 | 2682 | MagicWrap (tty) = tgetflag ("xn"); |
e4058338 KH |
2683 | /* Since we make MagicWrap terminals look like AutoWrap, we need to have |
2684 | the former flag imply the latter. */ | |
6548cf00 | 2685 | AutoWrap (tty) = MagicWrap (tty) || tgetflag ("am"); |
6ed8eeff | 2686 | terminal->memory_below_frame = tgetflag ("db"); |
fca177d4 | 2687 | tty->TF_hazeltine = tgetflag ("hz"); |
6ed8eeff | 2688 | terminal->must_write_spaces = tgetflag ("in"); |
fca177d4 KL |
2689 | tty->meta_key = tgetflag ("km") || tgetflag ("MT"); |
2690 | tty->TF_insmode_motion = tgetflag ("mi"); | |
2691 | tty->TF_standout_motion = tgetflag ("ms"); | |
2692 | tty->TF_underscore = tgetflag ("ul"); | |
2693 | tty->TF_teleray = tgetflag ("xt"); | |
08a24c47 | 2694 | |
e7cf0fa0 | 2695 | #ifdef MULTI_KBOARD |
6ed8eeff KL |
2696 | terminal->kboard = (KBOARD *) xmalloc (sizeof (KBOARD)); |
2697 | init_kboard (terminal->kboard); | |
2698 | terminal->kboard->next_kboard = all_kboards; | |
2699 | all_kboards = terminal->kboard; | |
2700 | terminal->kboard->reference_count++; | |
e7cf0fa0 KL |
2701 | /* Don't let the initial kboard remain current longer than necessary. |
2702 | That would cause problems if a file loaded on startup tries to | |
2703 | prompt in the mini-buffer. */ | |
2704 | if (current_kboard == initial_kboard) | |
6ed8eeff | 2705 | current_kboard = terminal->kboard; |
e7cf0fa0 KL |
2706 | #endif |
2707 | ||
6ed8eeff | 2708 | term_get_fkeys (address, terminal->kboard); |
5c2c7893 | 2709 | |
ff11dfa1 | 2710 | /* Get frame size from system, or else from termcap. */ |
3b12ce12 RS |
2711 | { |
2712 | int height, width; | |
0b0d3e0b | 2713 | get_tty_size (fileno (tty->input), &width, &height); |
0a125897 KL |
2714 | FrameCols (tty) = width; |
2715 | FrameRows (tty) = height; | |
3b12ce12 RS |
2716 | } |
2717 | ||
0a125897 KL |
2718 | if (FrameCols (tty) <= 0) |
2719 | FrameCols (tty) = tgetnum ("co"); | |
2720 | if (FrameRows (tty) <= 0) | |
2721 | FrameRows (tty) = tgetnum ("li"); | |
177c0ea7 | 2722 | |
0a125897 | 2723 | if (FrameRows (tty) < 3 || FrameCols (tty) < 3) |
6ed8eeff | 2724 | maybe_fatal (must_succeed, NULL, terminal, |
3224dac1 KL |
2725 | "Screen size %dx%d is too small" |
2726 | "Screen size %dx%d is too small", | |
0a125897 | 2727 | FrameCols (tty), FrameRows (tty)); |
ee7a2de4 | 2728 | |
8a56675d | 2729 | #if 0 /* This is not used anywhere. */ |
6ed8eeff | 2730 | tty->terminal->min_padding_speed = tgetnum ("pb"); |
8a56675d | 2731 | #endif |
28d440ab | 2732 | |
6548cf00 | 2733 | TabWidth (tty) = tgetnum ("tw"); |
08a24c47 JB |
2734 | |
2735 | #ifdef VMS | |
2736 | /* These capabilities commonly use ^J. | |
2737 | I don't know why, but sending them on VMS does not work; | |
2738 | it causes following spaces to be lost, sometimes. | |
2739 | For now, the simplest fix is to avoid using these capabilities ever. */ | |
6548cf00 KL |
2740 | if (Down (tty) && Down (tty)[0] == '\n') |
2741 | Down (tty) = 0; | |
08a24c47 JB |
2742 | #endif /* VMS */ |
2743 | ||
fca177d4 KL |
2744 | if (!tty->TS_bell) |
2745 | tty->TS_bell = "\07"; | |
08a24c47 | 2746 | |
fca177d4 KL |
2747 | if (!tty->TS_fwd_scroll) |
2748 | tty->TS_fwd_scroll = Down (tty); | |
08a24c47 | 2749 | |
fca177d4 | 2750 | PC = tty->TS_pad_char ? *tty->TS_pad_char : 0; |
08a24c47 | 2751 | |
6548cf00 KL |
2752 | if (TabWidth (tty) < 0) |
2753 | TabWidth (tty) = 8; | |
177c0ea7 | 2754 | |
08a24c47 JB |
2755 | /* Turned off since /etc/termcap seems to have :ta= for most terminals |
2756 | and newer termcap doc does not seem to say there is a default. | |
6548cf00 KL |
2757 | if (!tty->Wcm->cm_tab) |
2758 | tty->Wcm->cm_tab = "\t"; | |
08a24c47 JB |
2759 | */ |
2760 | ||
54800acb MB |
2761 | /* We don't support standout modes that use `magic cookies', so |
2762 | turn off any that do. */ | |
fca177d4 | 2763 | if (tty->TS_standout_mode && tgetnum ("sg") >= 0) |
54800acb | 2764 | { |
fca177d4 KL |
2765 | tty->TS_standout_mode = 0; |
2766 | tty->TS_end_standout_mode = 0; | |
54800acb | 2767 | } |
fca177d4 | 2768 | if (tty->TS_enter_underline_mode && tgetnum ("ug") >= 0) |
54800acb | 2769 | { |
fca177d4 KL |
2770 | tty->TS_enter_underline_mode = 0; |
2771 | tty->TS_exit_underline_mode = 0; | |
54800acb MB |
2772 | } |
2773 | ||
2774 | /* If there's no standout mode, try to use underlining instead. */ | |
fca177d4 | 2775 | if (tty->TS_standout_mode == 0) |
08a24c47 | 2776 | { |
fca177d4 KL |
2777 | tty->TS_standout_mode = tty->TS_enter_underline_mode; |
2778 | tty->TS_end_standout_mode = tty->TS_exit_underline_mode; | |
08a24c47 JB |
2779 | } |
2780 | ||
afd359c4 RS |
2781 | /* If no `se' string, try using a `me' string instead. |
2782 | If that fails, we can't use standout mode at all. */ | |
fca177d4 | 2783 | if (tty->TS_end_standout_mode == 0) |
afd359c4 | 2784 | { |
e4bfb3b6 | 2785 | char *s = tgetstr ("me", address); |
afd359c4 | 2786 | if (s != 0) |
fca177d4 | 2787 | tty->TS_end_standout_mode = s; |
afd359c4 | 2788 | else |
fca177d4 | 2789 | tty->TS_standout_mode = 0; |
afd359c4 RS |
2790 | } |
2791 | ||
fca177d4 | 2792 | if (tty->TF_teleray) |
08a24c47 | 2793 | { |
6548cf00 | 2794 | tty->Wcm->cm_tab = 0; |
54800acb | 2795 | /* We can't support standout mode, because it uses magic cookies. */ |
fca177d4 | 2796 | tty->TS_standout_mode = 0; |
08a24c47 | 2797 | /* But that means we cannot rely on ^M to go to column zero! */ |
6548cf00 | 2798 | CR (tty) = 0; |
08a24c47 JB |
2799 | /* LF can't be trusted either -- can alter hpos */ |
2800 | /* if move at column 0 thru a line with TS_standout_mode */ | |
6548cf00 | 2801 | Down (tty) = 0; |
08a24c47 JB |
2802 | } |
2803 | ||
2804 | /* Special handling for certain terminal types known to need it */ | |
2805 | ||
2806 | if (!strcmp (terminal_type, "supdup")) | |
2807 | { | |
6ed8eeff | 2808 | terminal->memory_below_frame = 1; |
6548cf00 | 2809 | tty->Wcm->cm_losewrap = 1; |
08a24c47 JB |
2810 | } |
2811 | if (!strncmp (terminal_type, "c10", 3) | |
2812 | || !strcmp (terminal_type, "perq")) | |
2813 | { | |
2814 | /* Supply a makeshift :wi string. | |
2815 | This string is not valid in general since it works only | |
2816 | for windows starting at the upper left corner; | |
2817 | but that is all Emacs uses. | |
daf01701 | 2818 | |
ff11dfa1 | 2819 | This string works only if the frame is using |
08a24c47 JB |
2820 | the top of the video memory, because addressing is memory-relative. |
2821 | So first check the :ti string to see if that is true. | |
2822 | ||
2823 | It would be simpler if the :wi string could go in the termcap | |
2824 | entry, but it can't because it is not fully valid. | |
2825 | If it were in the termcap entry, it would confuse other programs. */ | |
fca177d4 | 2826 | if (!tty->TS_set_window) |
08a24c47 | 2827 | { |
fca177d4 | 2828 | p = tty->TS_termcap_modes; |
08a24c47 JB |
2829 | while (*p && strcmp (p, "\033v ")) |
2830 | p++; | |
2831 | if (*p) | |
fca177d4 | 2832 | tty->TS_set_window = "\033v%C %C %C %C "; |
08a24c47 JB |
2833 | } |
2834 | /* Termcap entry often fails to have :in: flag */ | |
6ed8eeff | 2835 | terminal->must_write_spaces = 1; |
08a24c47 JB |
2836 | /* :ti string typically fails to have \E^G! in it */ |
2837 | /* This limits scope of insert-char to one line. */ | |
fca177d4 | 2838 | strcpy (area, tty->TS_termcap_modes); |
08a24c47 | 2839 | strcat (area, "\033\007!"); |
fca177d4 | 2840 | tty->TS_termcap_modes = area; |
08a24c47 | 2841 | area += strlen (area) + 1; |
6548cf00 | 2842 | p = AbsPosition (tty); |
08a24c47 | 2843 | /* Change all %+ parameters to %C, to handle |
28d440ab | 2844 | values above 96 correctly for the C100. */ |
08a24c47 | 2845 | while (*p) |
28d440ab KL |
2846 | { |
2847 | if (p[0] == '%' && p[1] == '+') | |
2848 | p[1] = 'C'; | |
2849 | p++; | |
2850 | } | |
08a24c47 JB |
2851 | } |
2852 | ||
0a125897 | 2853 | tty->specified_window = FrameRows (tty); |
08a24c47 | 2854 | |
6548cf00 | 2855 | if (Wcm_init (tty) == -1) /* can't do cursor motion */ |
3224dac1 | 2856 | { |
6ed8eeff | 2857 | maybe_fatal (must_succeed, NULL, terminal, |
3224dac1 | 2858 | "Terminal type \"%s\" is not powerful enough to run Emacs", |
08a24c47 | 2859 | #ifdef VMS |
3224dac1 | 2860 | "Terminal type \"%s\" is not powerful enough to run Emacs.\n\ |
08a24c47 JB |
2861 | It lacks the ability to position the cursor.\n\ |
2862 | If that is not the actual type of terminal you have, use either the\n\ | |
2863 | DCL command `SET TERMINAL/DEVICE= ...' for DEC-compatible terminals,\n\ | |
e12c1054 | 2864 | or `define EMACS_TERM \"terminal type\"' for non-DEC terminals.", |
37dad45a RS |
2865 | #else /* not VMS */ |
2866 | # ifdef TERMINFO | |
3224dac1 | 2867 | "Terminal type \"%s\" is not powerful enough to run Emacs.\n\ |
0a125897 KL |
2868 | It lacks the ability to position the cursor.\n\ |
2869 | If that is not the actual type of terminal you have,\n\ | |
37dad45a RS |
2870 | use the Bourne shell command `TERM=... export TERM' (C-shell:\n\ |
2871 | `setenv TERM ...') to specify the correct type. It may be necessary\n\ | |
e12c1054 | 2872 | to do `unset TERMINFO' (C-shell: `unsetenv TERMINFO') as well.", |
37dad45a | 2873 | # else /* TERMCAP */ |
3224dac1 | 2874 | "Terminal type \"%s\" is not powerful enough to run Emacs.\n\ |
0a125897 | 2875 | It lacks the ability to position the cursor.\n\ |
08a24c47 | 2876 | If that is not the actual type of terminal you have,\n\ |
c5a9c3e6 RS |
2877 | use the Bourne shell command `TERM=... export TERM' (C-shell:\n\ |
2878 | `setenv TERM ...') to specify the correct type. It may be necessary\n\ | |
e12c1054 | 2879 | to do `unset TERMCAP' (C-shell: `unsetenv TERMCAP') as well.", |
37dad45a RS |
2880 | # endif /* TERMINFO */ |
2881 | #endif /*VMS */ | |
3224dac1 | 2882 | terminal_type); |
fca177d4 | 2883 | } |
daf01701 | 2884 | |
0a125897 | 2885 | if (FrameRows (tty) <= 0 || FrameCols (tty) <= 0) |
6ed8eeff | 2886 | maybe_fatal (must_succeed, NULL, terminal, |
3224dac1 KL |
2887 | "Could not determine the frame size", |
2888 | "Could not determine the frame size"); | |
08a24c47 | 2889 | |
fca177d4 KL |
2890 | tty->delete_in_insert_mode |
2891 | = tty->TS_delete_mode && tty->TS_insert_mode | |
2892 | && !strcmp (tty->TS_delete_mode, tty->TS_insert_mode); | |
08a24c47 | 2893 | |
fca177d4 KL |
2894 | tty->se_is_so = (tty->TS_standout_mode |
2895 | && tty->TS_end_standout_mode | |
2896 | && !strcmp (tty->TS_standout_mode, tty->TS_end_standout_mode)); | |
08a24c47 | 2897 | |
0b0d3e0b | 2898 | UseTabs (tty) = tabs_safe_p (fileno (tty->input)) && TabWidth (tty) == 8; |
08a24c47 | 2899 | |
6ed8eeff | 2900 | terminal->scroll_region_ok |
6548cf00 | 2901 | = (tty->Wcm->cm_abs |
fca177d4 | 2902 | && (tty->TS_set_window || tty->TS_set_scroll_region || tty->TS_set_scroll_region_1)); |
08a24c47 | 2903 | |
6ed8eeff | 2904 | terminal->line_ins_del_ok |
fca177d4 KL |
2905 | = (((tty->TS_ins_line || tty->TS_ins_multi_lines) |
2906 | && (tty->TS_del_line || tty->TS_del_multi_lines)) | |
6ed8eeff | 2907 | || (terminal->scroll_region_ok |
fca177d4 | 2908 | && tty->TS_fwd_scroll && tty->TS_rev_scroll)); |
28d440ab | 2909 | |
6ed8eeff | 2910 | terminal->char_ins_del_ok |
fca177d4 KL |
2911 | = ((tty->TS_ins_char || tty->TS_insert_mode |
2912 | || tty->TS_pad_inserted_char || tty->TS_ins_multi_chars) | |
2913 | && (tty->TS_del_char || tty->TS_del_multi_chars)); | |
8a56675d | 2914 | |
6ed8eeff | 2915 | terminal->fast_clear_end_of_line = tty->TS_clr_line != 0; |
08a24c47 | 2916 | |
0b0d3e0b | 2917 | init_baud_rate (fileno (tty->input)); |
20a558dc | 2918 | |
daf01701 KL |
2919 | #ifdef AIXHFT |
2920 | /* The HFT system on AIX doesn't optimize for scrolling, so it's | |
2921 | really ugly at times. */ | |
6ed8eeff KL |
2922 | terminal->line_ins_del_ok = 0; |
2923 | terminal->char_ins_del_ok = 0; | |
daf01701 KL |
2924 | #endif |
2925 | ||
0a125897 KL |
2926 | /* Don't do this. I think termcap may still need the buffer. */ |
2927 | /* xfree (buffer); */ | |
28d440ab | 2928 | |
0a125897 KL |
2929 | /* Init system terminal modes (RAW or CBREAK, etc.). */ |
2930 | init_sys_modes (tty); | |
daf01701 | 2931 | |
6ed8eeff | 2932 | return terminal; |
7b00d185 | 2933 | #endif /* not WINDOWSNT */ |
08a24c47 JB |
2934 | } |
2935 | ||
a4c6993d | 2936 | /* Auxiliary error-handling function for init_tty. |
6ed8eeff | 2937 | Free BUFFER and delete TERMINAL, then call error or fatal |
da8e1115 KL |
2938 | with str1 or str2, respectively, according to MUST_SUCCEED. */ |
2939 | ||
3224dac1 | 2940 | static void |
6ed8eeff | 2941 | maybe_fatal (must_succeed, buffer, terminal, str1, str2, arg1, arg2) |
3224dac1 KL |
2942 | int must_succeed; |
2943 | char *buffer; | |
6ed8eeff | 2944 | struct terminal *terminal; |
3224dac1 KL |
2945 | char *str1, *str2, *arg1, *arg2; |
2946 | { | |
2947 | if (buffer) | |
2948 | xfree (buffer); | |
2949 | ||
6ed8eeff KL |
2950 | if (terminal) |
2951 | delete_tty (terminal); | |
3224dac1 KL |
2952 | |
2953 | if (must_succeed) | |
2954 | fatal (str2, arg1, arg2); | |
2955 | else | |
2956 | error (str1, arg1, arg2); | |
2957 | ||
2958 | abort (); | |
2959 | } | |
2960 | ||
08a24c47 | 2961 | /* VARARGS 1 */ |
dfcf069d | 2962 | void |
08a24c47 | 2963 | fatal (str, arg1, arg2) |
4746118a | 2964 | char *str, *arg1, *arg2; |
08a24c47 JB |
2965 | { |
2966 | fprintf (stderr, "emacs: "); | |
2967 | fprintf (stderr, str, arg1, arg2); | |
e12c1054 | 2968 | fprintf (stderr, "\n"); |
08a24c47 JB |
2969 | fflush (stderr); |
2970 | exit (1); | |
2971 | } | |
07c57952 | 2972 | |
819b8f00 KL |
2973 | \f |
2974 | ||
6ed8eeff | 2975 | /* Delete the given tty terminal, closing all frames on it. */ |
da8e1115 | 2976 | |
ed8dad6b | 2977 | static void |
6ed8eeff | 2978 | delete_tty (struct terminal *terminal) |
fca177d4 | 2979 | { |
428a555e | 2980 | struct tty_display_info *tty; |
fca177d4 | 2981 | Lisp_Object tail, frame; |
6ed8eeff | 2982 | int last_terminal; |
4d553a13 | 2983 | |
ab797f65 KL |
2984 | /* Protect against recursive calls. Fdelete_frame in |
2985 | delete_terminal calls us back when it deletes our last frame. */ | |
a98f1617 | 2986 | if (terminal->deleted) |
0a125897 | 2987 | return; |
fca177d4 | 2988 | |
6ed8eeff | 2989 | if (terminal->type != output_termcap) |
428a555e KL |
2990 | abort (); |
2991 | ||
6ed8eeff | 2992 | tty = terminal->display_info.tty; |
428a555e | 2993 | |
6ed8eeff | 2994 | last_terminal = 1; |
81be1a93 KL |
2995 | FOR_EACH_FRAME (tail, frame) |
2996 | { | |
2997 | struct frame *f = XFRAME (frame); | |
2998 | if (FRAME_LIVE_P (f) && (!FRAME_TERMCAP_P (f) || FRAME_TTY (f) != tty)) | |
2999 | { | |
6ed8eeff | 3000 | last_terminal = 0; |
81be1a93 KL |
3001 | break; |
3002 | } | |
3003 | } | |
6ed8eeff KL |
3004 | if (last_terminal) |
3005 | error ("Attempt to delete the sole terminal device with live frames"); | |
81be1a93 | 3006 | |
fca177d4 KL |
3007 | if (tty == tty_list) |
3008 | tty_list = tty->next; | |
3009 | else | |
3010 | { | |
28d7d09f | 3011 | struct tty_display_info *p; |
fca177d4 KL |
3012 | for (p = tty_list; p && p->next != tty; p = p->next) |
3013 | ; | |
3014 | ||
3015 | if (! p) | |
3016 | /* This should not happen. */ | |
3017 | abort (); | |
3018 | ||
0a125897 KL |
3019 | p->next = tty->next; |
3020 | tty->next = 0; | |
fca177d4 KL |
3021 | } |
3022 | ||
7e59217d | 3023 | /* reset_sys_modes needs a valid device, so this call needs to be |
6ed8eeff | 3024 | before delete_terminal. */ |
04c3243c | 3025 | reset_sys_modes (tty); |
fca177d4 | 3026 | |
6ed8eeff | 3027 | delete_terminal (terminal); |
3224dac1 | 3028 | |
ab797f65 KL |
3029 | if (tty->name) |
3030 | xfree (tty->name); | |
3031 | ||
fca177d4 KL |
3032 | if (tty->type) |
3033 | xfree (tty->type); | |
daf01701 | 3034 | |
fca177d4 | 3035 | if (tty->input) |
819b8f00 KL |
3036 | { |
3037 | delete_keyboard_wait_descriptor (fileno (tty->input)); | |
3038 | if (tty->input != stdin) | |
3039 | fclose (tty->input); | |
3040 | } | |
3041 | if (tty->output && tty->output != stdout && tty->output != tty->input) | |
fca177d4 KL |
3042 | fclose (tty->output); |
3043 | if (tty->termscript) | |
3044 | fclose (tty->termscript); | |
daf01701 | 3045 | |
fca177d4 | 3046 | if (tty->old_tty) |
0a125897 | 3047 | xfree (tty->old_tty); |
fca177d4 | 3048 | |
0a125897 | 3049 | if (tty->Wcm) |
daf01701 KL |
3050 | xfree (tty->Wcm); |
3051 | ||
28d7d09f | 3052 | bzero (tty, sizeof (struct tty_display_info)); |
fca177d4 | 3053 | xfree (tty); |
fca177d4 KL |
3054 | } |
3055 | ||
428a555e KL |
3056 | \f |
3057 | ||
28d7d09f | 3058 | /* Mark the pointers in the tty_display_info objects. |
819b8f00 | 3059 | Called by the Fgarbage_collector. */ |
da8e1115 | 3060 | |
fca177d4 | 3061 | void |
ed8dad6b | 3062 | mark_ttys (void) |
fca177d4 | 3063 | { |
28d7d09f | 3064 | struct tty_display_info *tty; |
0c72d684 | 3065 | |
819b8f00 | 3066 | for (tty = tty_list; tty; tty = tty->next) |
fca177d4 | 3067 | { |
819b8f00 KL |
3068 | if (tty->top_frame) |
3069 | mark_object (tty->top_frame); | |
fca177d4 KL |
3070 | } |
3071 | } | |
3072 | ||
428a555e KL |
3073 | \f |
3074 | ||
819b8f00 KL |
3075 | void |
3076 | syms_of_term () | |
3077 | { | |
3078 | DEFVAR_BOOL ("system-uses-terminfo", &system_uses_terminfo, | |
3079 | doc: /* Non-nil means the system uses terminfo rather than termcap. | |
3080 | This variable can be used by terminal emulator packages. */); | |
3081 | #ifdef TERMINFO | |
3082 | system_uses_terminfo = 1; | |
3083 | #else | |
3084 | system_uses_terminfo = 0; | |
3085 | #endif | |
3086 | ||
0b0d3e0b KL |
3087 | DEFVAR_LISP ("suspend-tty-functions", &Vsuspend_tty_functions, |
3088 | doc: /* Functions to be run after suspending a tty. | |
ab797f65 | 3089 | The functions are run with one argument, the terminal id to be suspended. |
0b0d3e0b KL |
3090 | See `suspend-tty'. */); |
3091 | Vsuspend_tty_functions = Qnil; | |
3092 | ||
3093 | ||
3094 | DEFVAR_LISP ("resume-tty-functions", &Vresume_tty_functions, | |
3095 | doc: /* Functions to be run after resuming a tty. | |
ab797f65 | 3096 | The functions are run with one argument, the terminal id that was revived. |
0b0d3e0b KL |
3097 | See `resume-tty'. */); |
3098 | Vresume_tty_functions = Qnil; | |
3099 | ||
0db017c0 SM |
3100 | DEFVAR_BOOL ("visible-cursor", &visible_cursor, |
3101 | doc: /* Non-nil means to make the cursor very visible. | |
3102 | This only has an effect when running in a text terminal. | |
3103 | What means \"very visible\" is up to your terminal. It may make the cursor | |
3104 | bigger, or it may make it blink, or it may do nothing at all. */); | |
3105 | visible_cursor = 1; | |
3106 | ||
819b8f00 KL |
3107 | defsubr (&Stty_display_color_p); |
3108 | defsubr (&Stty_display_color_cells); | |
072d84a6 | 3109 | defsubr (&Stty_no_underline); |
6ed8eeff KL |
3110 | defsubr (&Stty_type); |
3111 | defsubr (&Scontrolling_tty_p); | |
0b0d3e0b KL |
3112 | defsubr (&Ssuspend_tty); |
3113 | defsubr (&Sresume_tty); | |
819b8f00 KL |
3114 | } |
3115 | ||
3116 | ||
3117 | ||
ab5796a9 MB |
3118 | /* arch-tag: 498e7449-6f2e-45e2-91dd-b7d4ca488193 |
3119 | (do not change this comment) */ |