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, |
4e6835db | 3 | 2002, 2003, 2004, 2005, 2006, 2007 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" |
1a935bfd | 50 | #include "blockinput.h" |
03a1d6bd KL |
51 | #include "syssignal.h" |
52 | #include "systty.h" | |
a168702a | 53 | |
ff23e1dd GM |
54 | /* For now, don't try to include termcap.h. On some systems, |
55 | configure finds a non-standard termcap.h that the main build | |
56 | won't find. */ | |
57 | ||
58 | #if defined HAVE_TERMCAP_H && 0 | |
b0f61f15 | 59 | #include <termcap.h> |
46d1b2bc DL |
60 | #else |
61 | extern void tputs P_ ((const char *, int, int (*)(int))); | |
62 | extern int tgetent P_ ((char *, const char *)); | |
63 | extern int tgetflag P_ ((char *id)); | |
64 | extern int tgetnum P_ ((char *id)); | |
b0f61f15 GM |
65 | #endif |
66 | ||
eccec691 | 67 | #include "cm.h" |
dfcf069d AS |
68 | #ifdef HAVE_X_WINDOWS |
69 | #include "xterm.h" | |
70 | #endif | |
e0f712ba | 71 | #ifdef MAC_OS |
1a578e9b AC |
72 | #include "macterm.h" |
73 | #endif | |
c8951b18 | 74 | |
28d440ab KL |
75 | #ifndef O_RDWR |
76 | #define O_RDWR 2 | |
77 | #endif | |
78 | ||
0c72d684 KL |
79 | #ifndef O_NOCTTY |
80 | #define O_NOCTTY 0 | |
81 | #endif | |
82 | ||
ed8dad6b | 83 | static void tty_set_scroll_region P_ ((struct frame *f, int start, int stop)); |
a168702a GM |
84 | static void turn_on_face P_ ((struct frame *, int face_id)); |
85 | static void turn_off_face P_ ((struct frame *, int face_id)); | |
28d7d09f KL |
86 | static void tty_show_cursor P_ ((struct tty_display_info *)); |
87 | static void tty_hide_cursor P_ ((struct tty_display_info *)); | |
ed8dad6b | 88 | static void tty_background_highlight P_ ((struct tty_display_info *tty)); |
4a665758 KL |
89 | static void clear_tty_hooks P_ ((struct terminal *terminal)); |
90 | static void set_tty_hooks P_ ((struct terminal *terminal)); | |
ed8dad6b | 91 | static void dissociate_if_controlling_tty P_ ((int fd)); |
6ed8eeff | 92 | static void delete_tty P_ ((struct terminal *)); |
a168702a | 93 | |
6548cf00 KL |
94 | #define OUTPUT(tty, a) \ |
95 | emacs_tputs ((tty), a, \ | |
96 | (int) (FRAME_LINES (XFRAME (selected_frame)) \ | |
97 | - curY (tty)), \ | |
98 | cmputc) | |
99 | ||
28d440ab KL |
100 | #define OUTPUT1(tty, a) emacs_tputs ((tty), a, 1, cmputc) |
101 | #define OUTPUTL(tty, a, lines) emacs_tputs ((tty), a, lines, cmputc) | |
a168702a | 102 | |
28d440ab | 103 | #define OUTPUT_IF(tty, a) \ |
6548cf00 KL |
104 | do { \ |
105 | if (a) \ | |
106 | emacs_tputs ((tty), a, \ | |
107 | (int) (FRAME_LINES (XFRAME (selected_frame)) \ | |
108 | - curY (tty) ), \ | |
109 | cmputc); \ | |
110 | } while (0) | |
177c0ea7 | 111 | |
28d440ab | 112 | #define OUTPUT1_IF(tty, a) do { if (a) emacs_tputs ((tty), a, 1, cmputc); } while (0) |
08a24c47 | 113 | |
b58cb614 | 114 | /* If true, use "vs", otherwise use "ve" to make the cursor visible. */ |
177c0ea7 | 115 | |
b58cb614 | 116 | static int visible_cursor; |
08a24c47 | 117 | |
f46c2aff KS |
118 | /* Display space properties */ |
119 | ||
120 | extern Lisp_Object Qspace, QCalign_to, QCwidth; | |
121 | ||
0b0d3e0b KL |
122 | /* Functions to call after suspending a tty. */ |
123 | Lisp_Object Vsuspend_tty_functions; | |
124 | ||
125 | /* Functions to call after resuming a tty. */ | |
126 | Lisp_Object Vresume_tty_functions; | |
127 | ||
428a555e | 128 | /* Chain of all tty device parameters. */ |
28d7d09f | 129 | struct tty_display_info *tty_list; |
08a24c47 | 130 | |
fca177d4 KL |
131 | /* Nonzero means no need to redraw the entire frame on resuming a |
132 | suspended Emacs. This is useful on terminals with multiple | |
133 | pages, where one page is used for Emacs and another for all | |
134 | else. */ | |
08a24c47 | 135 | int no_redraw_on_reenter; |
819b8f00 | 136 | |
4e6ba4a4 GM |
137 | /* Meaning of bits in no_color_video. Each bit set means that the |
138 | corresponding attribute cannot be combined with colors. */ | |
139 | ||
140 | enum no_color_bit | |
141 | { | |
142 | NC_STANDOUT = 1 << 0, | |
143 | NC_UNDERLINE = 1 << 1, | |
144 | NC_REVERSE = 1 << 2, | |
145 | NC_BLINK = 1 << 3, | |
146 | NC_DIM = 1 << 4, | |
147 | NC_BOLD = 1 << 5, | |
148 | NC_INVIS = 1 << 6, | |
149 | NC_PROTECT = 1 << 7, | |
150 | NC_ALT_CHARSET = 1 << 8 | |
151 | }; | |
152 | ||
08a24c47 JB |
153 | /* internal state */ |
154 | ||
8dd0c7cb | 155 | /* The largest frame width in any call to calculate_costs. */ |
a168702a | 156 | |
9882535b | 157 | int max_frame_cols; |
a168702a | 158 | |
8dd0c7cb | 159 | /* The largest frame height in any call to calculate_costs. */ |
a168702a | 160 | |
9882535b | 161 | int max_frame_lines; |
8dd0c7cb | 162 | |
0c72d684 KL |
163 | /* Non-zero if we have dropped our controlling tty and therefore |
164 | should not open a frame on stdout. */ | |
165 | static int no_controlling_tty; | |
166 | ||
07c57952 | 167 | /* Provided for lisp packages. */ |
a168702a | 168 | |
07c57952 KH |
169 | static int system_uses_terminfo; |
170 | ||
08a24c47 | 171 | char *tparam (); |
e4bfb3b6 RS |
172 | |
173 | extern char *tgetstr (); | |
08a24c47 | 174 | \f |
cb28b9c2 | 175 | |
1a89b7c6 AI |
176 | #ifdef WINDOWSNT |
177 | /* We aren't X windows, but we aren't termcap either. This makes me | |
178 | uncertain as to what value to use for frame.output_method. For | |
179 | this file, we'll define FRAME_TERMCAP_P to be zero so that our | |
180 | output hooks get called instead of the termcap functions. Probably | |
181 | the best long-term solution is to define an output_windows_nt... */ | |
182 | ||
183 | #undef FRAME_TERMCAP_P | |
184 | #define FRAME_TERMCAP_P(_f_) 0 | |
185 | #endif /* WINDOWSNT */ | |
186 | ||
08a24c47 | 187 | |
da8e1115 KL |
188 | /* Ring the bell on a tty. */ |
189 | ||
ed8dad6b | 190 | static void |
385ed61f | 191 | tty_ring_bell (struct frame *f) |
3224dac1 | 192 | { |
3224dac1 KL |
193 | struct tty_display_info *tty = FRAME_TTY (f); |
194 | ||
b6660415 KL |
195 | if (tty->output) |
196 | { | |
197 | OUTPUT (tty, (tty->TS_visible_bell && visible_bell | |
198 | ? tty->TS_visible_bell | |
199 | : tty->TS_bell)); | |
200 | fflush (tty->output); | |
201 | } | |
3224dac1 KL |
202 | } |
203 | ||
da8e1115 KL |
204 | /* Set up termcap modes for Emacs. */ |
205 | ||
206 | void | |
6ed8eeff | 207 | tty_set_terminal_modes (struct terminal *terminal) |
fca177d4 | 208 | { |
6ed8eeff | 209 | struct tty_display_info *tty = terminal->display_info.tty; |
3224dac1 | 210 | |
0b0d3e0b KL |
211 | if (tty->output) |
212 | { | |
fbf34973 KL |
213 | if (tty->TS_termcap_modes) |
214 | OUTPUT (tty, tty->TS_termcap_modes); | |
215 | else | |
216 | { | |
217 | /* Output enough newlines to scroll all the old screen contents | |
218 | off the screen, so it won't be overwritten and lost. */ | |
219 | int i; | |
a3c07f68 | 220 | current_tty = tty; |
fbf34973 | 221 | for (i = 0; i < FRAME_LINES (XFRAME (selected_frame)); i++) |
a3c07f68 | 222 | cmputc ('\n'); |
fbf34973 KL |
223 | } |
224 | ||
0b0d3e0b | 225 | OUTPUT_IF (tty, tty->TS_termcap_modes); |
b58cb614 | 226 | OUTPUT_IF (tty, visible_cursor ? tty->TS_cursor_visible : tty->TS_cursor_normal); |
0b0d3e0b KL |
227 | OUTPUT_IF (tty, tty->TS_keypad_mode); |
228 | losecursor (tty); | |
2f98e6e3 | 229 | fflush (tty->output); |
0b0d3e0b | 230 | } |
fca177d4 KL |
231 | } |
232 | ||
da8e1115 KL |
233 | /* Reset termcap modes before exiting Emacs. */ |
234 | ||
235 | void | |
6ed8eeff | 236 | tty_reset_terminal_modes (struct terminal *terminal) |
fca177d4 | 237 | { |
6ed8eeff | 238 | struct tty_display_info *tty = terminal->display_info.tty; |
0b0d3e0b KL |
239 | |
240 | if (tty->output) | |
241 | { | |
ed8dad6b KL |
242 | tty_turn_off_highlight (tty); |
243 | tty_turn_off_insert (tty); | |
0b0d3e0b KL |
244 | OUTPUT_IF (tty, tty->TS_end_keypad_mode); |
245 | OUTPUT_IF (tty, tty->TS_cursor_normal); | |
246 | OUTPUT_IF (tty, tty->TS_end_termcap_modes); | |
247 | OUTPUT_IF (tty, tty->TS_orig_pair); | |
248 | /* Output raw CR so kernel can track the cursor hpos. */ | |
249 | current_tty = tty; | |
250 | cmputc ('\r'); | |
2f98e6e3 | 251 | fflush (tty->output); |
0b0d3e0b | 252 | } |
fca177d4 KL |
253 | } |
254 | ||
6ed8eeff | 255 | /* Flag the end of a display update on a termcap terminal. */ |
da8e1115 | 256 | |
ed8dad6b | 257 | static void |
3224dac1 KL |
258 | tty_update_end (struct frame *f) |
259 | { | |
260 | struct tty_display_info *tty = FRAME_TTY (f); | |
261 | ||
262 | if (!XWINDOW (selected_window)->cursor_off_p) | |
263 | tty_show_cursor (tty); | |
ed8dad6b KL |
264 | tty_turn_off_insert (tty); |
265 | tty_background_highlight (tty); | |
3224dac1 KL |
266 | } |
267 | ||
da8e1115 KL |
268 | /* The implementation of set_terminal_window for termcap frames. */ |
269 | ||
ed8dad6b | 270 | static void |
385ed61f | 271 | tty_set_terminal_window (struct frame *f, int size) |
3224dac1 | 272 | { |
3224dac1 KL |
273 | struct tty_display_info *tty = FRAME_TTY (f); |
274 | ||
275 | tty->specified_window = size ? size : FRAME_LINES (f); | |
276 | if (FRAME_SCROLL_REGION_OK (f)) | |
ed8dad6b | 277 | tty_set_scroll_region (f, 0, tty->specified_window); |
08a24c47 JB |
278 | } |
279 | ||
ed8dad6b KL |
280 | static void |
281 | tty_set_scroll_region (struct frame *f, int start, int stop) | |
08a24c47 JB |
282 | { |
283 | char *buf; | |
28d7d09f | 284 | struct tty_display_info *tty = FRAME_TTY (f); |
177c0ea7 | 285 | |
fca177d4 KL |
286 | if (tty->TS_set_scroll_region) |
287 | buf = tparam (tty->TS_set_scroll_region, 0, 0, start, stop - 1); | |
288 | else if (tty->TS_set_scroll_region_1) | |
289 | buf = tparam (tty->TS_set_scroll_region_1, 0, 0, | |
ed02974b KL |
290 | FRAME_LINES (f), start, |
291 | FRAME_LINES (f) - stop, | |
292 | FRAME_LINES (f)); | |
08a24c47 | 293 | else |
fca177d4 | 294 | buf = tparam (tty->TS_set_window, 0, 0, start, 0, stop, FRAME_COLS (f)); |
177c0ea7 | 295 | |
6548cf00 | 296 | OUTPUT (tty, buf); |
9ac0d9e0 | 297 | xfree (buf); |
6548cf00 | 298 | losecursor (tty); |
08a24c47 | 299 | } |
d284f58f | 300 | |
08a24c47 | 301 | \f |
d284f58f | 302 | static void |
ed8dad6b | 303 | tty_turn_on_insert (struct tty_display_info *tty) |
08a24c47 | 304 | { |
fca177d4 KL |
305 | if (!tty->insert_mode) |
306 | OUTPUT (tty, tty->TS_insert_mode); | |
307 | tty->insert_mode = 1; | |
08a24c47 JB |
308 | } |
309 | ||
dfcf069d | 310 | void |
ed8dad6b | 311 | tty_turn_off_insert (struct tty_display_info *tty) |
08a24c47 | 312 | { |
fca177d4 KL |
313 | if (tty->insert_mode) |
314 | OUTPUT (tty, tty->TS_end_insert_mode); | |
315 | tty->insert_mode = 0; | |
08a24c47 JB |
316 | } |
317 | \f | |
54800acb | 318 | /* Handle highlighting. */ |
08a24c47 | 319 | |
dfcf069d | 320 | void |
ed8dad6b | 321 | tty_turn_off_highlight (struct tty_display_info *tty) |
08a24c47 | 322 | { |
fca177d4 KL |
323 | if (tty->standout_mode) |
324 | OUTPUT_IF (tty, tty->TS_end_standout_mode); | |
325 | tty->standout_mode = 0; | |
08a24c47 JB |
326 | } |
327 | ||
d284f58f | 328 | static void |
ed8dad6b | 329 | tty_turn_on_highlight (struct tty_display_info *tty) |
08a24c47 | 330 | { |
fca177d4 KL |
331 | if (!tty->standout_mode) |
332 | OUTPUT_IF (tty, tty->TS_standout_mode); | |
333 | tty->standout_mode = 1; | |
08a24c47 JB |
334 | } |
335 | ||
86a7d192 | 336 | static void |
ed8dad6b | 337 | tty_toggle_highlight (struct tty_display_info *tty) |
86a7d192 | 338 | { |
fca177d4 | 339 | if (tty->standout_mode) |
ed8dad6b | 340 | tty_turn_off_highlight (tty); |
86a7d192 | 341 | else |
ed8dad6b | 342 | tty_turn_on_highlight (tty); |
86a7d192 GM |
343 | } |
344 | ||
a168702a GM |
345 | |
346 | /* Make cursor invisible. */ | |
347 | ||
348 | static void | |
28d7d09f | 349 | tty_hide_cursor (struct tty_display_info *tty) |
a168702a | 350 | { |
fca177d4 | 351 | if (tty->cursor_hidden == 0) |
d284f58f | 352 | { |
fca177d4 KL |
353 | tty->cursor_hidden = 1; |
354 | OUTPUT_IF (tty, tty->TS_cursor_invisible); | |
d284f58f | 355 | } |
a168702a GM |
356 | } |
357 | ||
358 | ||
359 | /* Ensure that cursor is visible. */ | |
360 | ||
361 | static void | |
28d7d09f | 362 | tty_show_cursor (struct tty_display_info *tty) |
a168702a | 363 | { |
fca177d4 | 364 | if (tty->cursor_hidden) |
d284f58f | 365 | { |
fca177d4 KL |
366 | tty->cursor_hidden = 0; |
367 | OUTPUT_IF (tty, tty->TS_cursor_normal); | |
0db017c0 | 368 | if (visible_cursor) |
b58cb614 | 369 | OUTPUT_IF (tty, tty->TS_cursor_visible); |
d284f58f | 370 | } |
a168702a GM |
371 | } |
372 | ||
373 | ||
08a24c47 JB |
374 | /* Set standout mode to the state it should be in for |
375 | empty space inside windows. What this is, | |
376 | depends on the user option inverse-video. */ | |
377 | ||
ed8dad6b KL |
378 | static void |
379 | tty_background_highlight (struct tty_display_info *tty) | |
08a24c47 | 380 | { |
08a24c47 | 381 | if (inverse_video) |
ed8dad6b | 382 | tty_turn_on_highlight (tty); |
08a24c47 | 383 | else |
ed8dad6b | 384 | tty_turn_off_highlight (tty); |
08a24c47 JB |
385 | } |
386 | ||
387 | /* Set standout mode to the mode specified for the text to be output. */ | |
388 | ||
dfcf069d | 389 | static void |
ed8dad6b | 390 | tty_highlight_if_desired (struct tty_display_info *tty) |
08a24c47 | 391 | { |
8ede64a5 | 392 | if (inverse_video) |
ed8dad6b | 393 | tty_turn_on_highlight (tty); |
8ede64a5 | 394 | else |
ed8dad6b | 395 | tty_turn_off_highlight (tty); |
08a24c47 JB |
396 | } |
397 | \f | |
398 | ||
a168702a GM |
399 | /* Move cursor to row/column position VPOS/HPOS. HPOS/VPOS are |
400 | frame-relative coordinates. */ | |
08a24c47 | 401 | |
ed8dad6b | 402 | static void |
385ed61f | 403 | tty_cursor_to (struct frame *f, int vpos, int hpos) |
3224dac1 | 404 | { |
3224dac1 | 405 | struct tty_display_info *tty = FRAME_TTY (f); |
6548cf00 | 406 | |
36cae867 KH |
407 | /* Detect the case where we are called from reset_sys_modes |
408 | and the costs have never been calculated. Do nothing. */ | |
fca177d4 | 409 | if (! tty->costs_set) |
36cae867 KH |
410 | return; |
411 | ||
6548cf00 KL |
412 | if (curY (tty) == vpos |
413 | && curX (tty) == hpos) | |
08a24c47 | 414 | return; |
fca177d4 | 415 | if (!tty->TF_standout_motion) |
ed8dad6b | 416 | tty_background_highlight (tty); |
fca177d4 | 417 | if (!tty->TF_insmode_motion) |
ed8dad6b | 418 | tty_turn_off_insert (tty); |
6548cf00 | 419 | cmgoto (tty, vpos, hpos); |
08a24c47 JB |
420 | } |
421 | ||
422 | /* Similar but don't take any account of the wasted characters. */ | |
423 | ||
ed8dad6b | 424 | static void |
385ed61f | 425 | tty_raw_cursor_to (struct frame *f, int row, int col) |
3224dac1 | 426 | { |
3224dac1 KL |
427 | struct tty_display_info *tty = FRAME_TTY (f); |
428 | ||
6548cf00 KL |
429 | if (curY (tty) == row |
430 | && curX (tty) == col) | |
08a24c47 | 431 | return; |
fca177d4 | 432 | if (!tty->TF_standout_motion) |
ed8dad6b | 433 | tty_background_highlight (tty); |
fca177d4 | 434 | if (!tty->TF_insmode_motion) |
ed8dad6b | 435 | tty_turn_off_insert (tty); |
6548cf00 | 436 | cmgoto (tty, row, col); |
08a24c47 JB |
437 | } |
438 | \f | |
439 | /* Erase operations */ | |
440 | ||
da8e1115 KL |
441 | /* Clear from cursor to end of frame on a termcap device. */ |
442 | ||
ed8dad6b | 443 | static void |
385ed61f | 444 | tty_clear_to_end (struct frame *f) |
3224dac1 KL |
445 | { |
446 | register int i; | |
3224dac1 KL |
447 | struct tty_display_info *tty = FRAME_TTY (f); |
448 | ||
fca177d4 | 449 | if (tty->TS_clr_to_bottom) |
08a24c47 | 450 | { |
ed8dad6b | 451 | tty_background_highlight (tty); |
fca177d4 | 452 | OUTPUT (tty, tty->TS_clr_to_bottom); |
08a24c47 JB |
453 | } |
454 | else | |
455 | { | |
6548cf00 | 456 | for (i = curY (tty); i < FRAME_LINES (f); i++) |
08a24c47 | 457 | { |
385ed61f KL |
458 | cursor_to (f, i, 0); |
459 | clear_end_of_line (f, FRAME_COLS (f)); | |
08a24c47 JB |
460 | } |
461 | } | |
462 | } | |
463 | ||
da8e1115 KL |
464 | /* Clear an entire termcap frame. */ |
465 | ||
ed8dad6b | 466 | static void |
385ed61f | 467 | tty_clear_frame (struct frame *f) |
3224dac1 | 468 | { |
3224dac1 KL |
469 | struct tty_display_info *tty = FRAME_TTY (f); |
470 | ||
fca177d4 | 471 | if (tty->TS_clr_frame) |
08a24c47 | 472 | { |
ed8dad6b | 473 | tty_background_highlight (tty); |
fca177d4 | 474 | OUTPUT (tty, tty->TS_clr_frame); |
6548cf00 | 475 | cmat (tty, 0, 0); |
08a24c47 JB |
476 | } |
477 | else | |
478 | { | |
385ed61f KL |
479 | cursor_to (f, 0, 0); |
480 | clear_to_end (f); | |
08a24c47 JB |
481 | } |
482 | } | |
483 | ||
da8e1115 KL |
484 | /* An implementation of clear_end_of_line for termcap frames. |
485 | ||
486 | Note that the cursor may be moved, on terminals lacking a `ce' string. */ | |
487 | ||
ed8dad6b | 488 | static void |
385ed61f | 489 | tty_clear_end_of_line (struct frame *f, int first_unused_hpos) |
0a125897 KL |
490 | { |
491 | register int i; | |
3224dac1 KL |
492 | struct tty_display_info *tty = FRAME_TTY (f); |
493 | ||
36cae867 KH |
494 | /* Detect the case where we are called from reset_sys_modes |
495 | and the costs have never been calculated. Do nothing. */ | |
fca177d4 | 496 | if (! tty->costs_set) |
36cae867 KH |
497 | return; |
498 | ||
6548cf00 | 499 | if (curX (tty) >= first_unused_hpos) |
08a24c47 | 500 | return; |
ed8dad6b | 501 | tty_background_highlight (tty); |
fca177d4 | 502 | if (tty->TS_clr_line) |
08a24c47 | 503 | { |
fca177d4 | 504 | OUTPUT1 (tty, tty->TS_clr_line); |
08a24c47 JB |
505 | } |
506 | else | |
507 | { /* have to do it the hard way */ | |
ed8dad6b | 508 | tty_turn_off_insert (tty); |
08a24c47 | 509 | |
a168702a | 510 | /* Do not write in last row last col with Auto-wrap on. */ |
6548cf00 | 511 | if (AutoWrap (tty) |
0a125897 KL |
512 | && curY (tty) == FrameRows (tty) - 1 |
513 | && first_unused_hpos == FrameCols (tty)) | |
08a24c47 JB |
514 | first_unused_hpos--; |
515 | ||
6548cf00 | 516 | for (i = curX (tty); i < first_unused_hpos; i++) |
08a24c47 | 517 | { |
0b0d3e0b KL |
518 | if (tty->termscript) |
519 | fputc (' ', tty->termscript); | |
520 | fputc (' ', tty->output); | |
08a24c47 | 521 | } |
6548cf00 | 522 | cmplus (tty, first_unused_hpos - curX (tty)); |
08a24c47 JB |
523 | } |
524 | } | |
525 | \f | |
af645abf KH |
526 | /* Buffer to store the source and result of code conversion for terminal. */ |
527 | static unsigned char *encode_terminal_buf; | |
528 | /* Allocated size of the above buffer. */ | |
529 | static int encode_terminal_bufsize; | |
a4decb7f | 530 | |
af645abf KH |
531 | /* Encode SRC_LEN glyphs starting at SRC to terminal output codes. |
532 | Set CODING->produced to the byte-length of the resulting byte | |
533 | sequence, and return a pointer to that byte sequence. */ | |
a4decb7f | 534 | |
302db699 | 535 | unsigned char * |
af645abf | 536 | encode_terminal_code (src, src_len, coding) |
a168702a | 537 | struct glyph *src; |
a4decb7f | 538 | int src_len; |
af645abf | 539 | struct coding_system *coding; |
a4decb7f | 540 | { |
feef4f84 | 541 | struct glyph *src_end = src + src_len; |
085d5908 | 542 | register GLYPH g; |
af645abf KH |
543 | unsigned char *buf; |
544 | int nchars, nbytes, required; | |
a4decb7f KH |
545 | register int tlen = GLYPH_TABLE_LENGTH; |
546 | register Lisp_Object *tbase = GLYPH_TABLE_BASE; | |
6589fd67 | 547 | |
af645abf KH |
548 | /* Allocate sufficient size of buffer to store all characters in |
549 | multibyte-form. But, it may be enlarged on demand if | |
550 | Vglyph_table contains a string. */ | |
551 | required = MAX_MULTIBYTE_LENGTH * src_len; | |
552 | if (encode_terminal_bufsize < required) | |
553 | { | |
af645abf KH |
554 | if (encode_terminal_bufsize == 0) |
555 | encode_terminal_buf = xmalloc (required); | |
556 | else | |
557 | encode_terminal_buf = xrealloc (encode_terminal_buf, required); | |
d6d31e57 | 558 | encode_terminal_bufsize = required; |
af645abf | 559 | } |
a4decb7f | 560 | |
af645abf KH |
561 | buf = encode_terminal_buf; |
562 | nchars = 0; | |
a4decb7f KH |
563 | while (src < src_end) |
564 | { | |
a4decb7f | 565 | /* We must skip glyphs to be padded for a wide character. */ |
a168702a | 566 | if (! CHAR_GLYPH_PADDING_P (*src)) |
a4decb7f | 567 | { |
32de38e4 KH |
568 | g = GLYPH_FROM_CHAR_GLYPH (src[0]); |
569 | ||
570 | if (g < 0 || g >= tlen) | |
085d5908 | 571 | { |
32de38e4 | 572 | /* This glyph doesn't has an entry in Vglyph_table. */ |
af645abf KH |
573 | if (CHAR_VALID_P (src->u.ch, 0)) |
574 | buf += CHAR_STRING (src->u.ch, buf); | |
32de38e4 | 575 | else |
af645abf KH |
576 | *buf++ = SPACEGLYPH; |
577 | nchars++; | |
085d5908 | 578 | } |
32de38e4 | 579 | else |
a4decb7f | 580 | { |
32de38e4 | 581 | /* This glyph has an entry in Vglyph_table, |
a4decb7f KH |
582 | so process any alias before testing for simpleness. */ |
583 | GLYPH_FOLLOW_ALIASES (tbase, tlen, g); | |
32de38e4 KH |
584 | |
585 | if (GLYPH_SIMPLE_P (tbase, tlen, g)) | |
586 | { | |
af645abf KH |
587 | int c = FAST_GLYPH_CHAR (g); |
588 | ||
589 | if (CHAR_VALID_P (c, 0)) | |
590 | buf += CHAR_STRING (c, buf); | |
591 | else | |
592 | *buf++ = SPACEGLYPH; | |
593 | nchars++; | |
32de38e4 KH |
594 | } |
595 | else | |
596 | { | |
597 | /* We have a string in Vglyph_table. */ | |
af645abf KH |
598 | Lisp_Object string; |
599 | ||
600 | string = tbase[g]; | |
601 | if (! STRING_MULTIBYTE (string)) | |
602 | string = string_to_multibyte (string); | |
603 | nbytes = buf - encode_terminal_buf; | |
fd4a9f8f | 604 | if (encode_terminal_bufsize < nbytes + SBYTES (string)) |
af645abf KH |
605 | { |
606 | encode_terminal_bufsize = nbytes + SBYTES (string); | |
607 | encode_terminal_buf = xrealloc (encode_terminal_buf, | |
608 | encode_terminal_bufsize); | |
609 | buf = encode_terminal_buf + nbytes; | |
610 | } | |
611 | bcopy (SDATA (string), buf, SBYTES (string)); | |
612 | buf += SBYTES (string); | |
613 | nchars += SCHARS (string); | |
32de38e4 | 614 | } |
171d7f24 | 615 | } |
a4decb7f KH |
616 | } |
617 | src++; | |
618 | } | |
177c0ea7 | 619 | |
af645abf KH |
620 | nbytes = buf - encode_terminal_buf; |
621 | coding->src_multibyte = 1; | |
622 | coding->dst_multibyte = 0; | |
623 | if (SYMBOLP (coding->pre_write_conversion) | |
624 | && ! NILP (Ffboundp (coding->pre_write_conversion))) | |
625 | { | |
feef4f84 | 626 | run_pre_write_conversin_on_c_str (&encode_terminal_buf, |
af645abf KH |
627 | &encode_terminal_bufsize, |
628 | nchars, nbytes, coding); | |
629 | nchars = coding->produced_char; | |
630 | nbytes = coding->produced; | |
631 | } | |
632 | required = nbytes + encoding_buffer_size (coding, nbytes); | |
633 | if (encode_terminal_bufsize < required) | |
634 | { | |
635 | encode_terminal_bufsize = required; | |
636 | encode_terminal_buf = xrealloc (encode_terminal_buf, required); | |
637 | } | |
a4decb7f | 638 | |
af645abf KH |
639 | encode_coding (coding, encode_terminal_buf, encode_terminal_buf + nbytes, |
640 | nbytes, encode_terminal_bufsize - nbytes); | |
641 | return encode_terminal_buf + nbytes; | |
a4decb7f KH |
642 | } |
643 | ||
08a24c47 | 644 | |
da8e1115 KL |
645 | /* An implementation of write_glyphs for termcap frames. */ |
646 | ||
ed8dad6b | 647 | static void |
385ed61f | 648 | tty_write_glyphs (struct frame *f, struct glyph *string, int len) |
08a24c47 | 649 | { |
af645abf KH |
650 | unsigned char *conversion_buffer; |
651 | struct coding_system *coding; | |
08a24c47 | 652 | |
3224dac1 | 653 | struct tty_display_info *tty = FRAME_TTY (f); |
6548cf00 | 654 | |
ed8dad6b | 655 | tty_turn_off_insert (tty); |
fca177d4 | 656 | tty_hide_cursor (tty); |
08a24c47 | 657 | |
a168702a | 658 | /* Don't dare write in last column of bottom line, if Auto-Wrap, |
ff11dfa1 | 659 | since that would scroll the whole frame on some terminals. */ |
08a24c47 | 660 | |
6548cf00 KL |
661 | if (AutoWrap (tty) |
662 | && curY (tty) + 1 == FRAME_LINES (f) | |
663 | && (curX (tty) + len) == FRAME_COLS (f)) | |
08a24c47 | 664 | len --; |
a4decb7f KH |
665 | if (len <= 0) |
666 | return; | |
08a24c47 | 667 | |
6548cf00 | 668 | cmplus (tty, len); |
177c0ea7 | 669 | |
af645abf KH |
670 | /* If terminal_coding does any conversion, use it, otherwise use |
671 | safe_terminal_coding. We can't use CODING_REQUIRE_ENCODING here | |
672 | because it always return 1 if the member src_multibyte is 1. */ | |
fad2f685 KL |
673 | coding = (FRAME_TERMINAL_CODING (f)->common_flags & CODING_REQUIRE_ENCODING_MASK |
674 | ? FRAME_TERMINAL_CODING (f) : &safe_terminal_coding); | |
6589fd67 KH |
675 | /* The mode bit CODING_MODE_LAST_BLOCK should be set to 1 only at |
676 | the tail. */ | |
af645abf | 677 | coding->mode &= ~CODING_MODE_LAST_BLOCK; |
177c0ea7 | 678 | |
a4decb7f | 679 | while (len > 0) |
08a24c47 | 680 | { |
a168702a | 681 | /* Identify a run of glyphs with the same face. */ |
32de38e4 | 682 | int face_id = string->face_id; |
a168702a | 683 | int n; |
177c0ea7 | 684 | |
a168702a | 685 | for (n = 1; n < len; ++n) |
32de38e4 | 686 | if (string[n].face_id != face_id) |
a168702a GM |
687 | break; |
688 | ||
689 | /* Turn appearance modes of the face of the run on. */ | |
ed8dad6b | 690 | tty_highlight_if_desired (tty); |
a168702a GM |
691 | turn_on_face (f, face_id); |
692 | ||
af645abf KH |
693 | if (n == len) |
694 | /* This is the last run. */ | |
695 | coding->mode |= CODING_MODE_LAST_BLOCK; | |
696 | conversion_buffer = encode_terminal_code (string, n, coding); | |
697 | if (coding->produced > 0) | |
08a24c47 | 698 | { |
1a935bfd | 699 | BLOCK_INPUT; |
fad2f685 KL |
700 | fwrite (conversion_buffer, 1, coding->produced, tty->output); |
701 | if (ferror (tty->output)) | |
702 | clearerr (tty->output); | |
703 | if (tty->termscript) | |
704 | fwrite (conversion_buffer, 1, coding->produced, tty->termscript); | |
1a935bfd | 705 | UNBLOCK_INPUT; |
08a24c47 | 706 | } |
af645abf KH |
707 | len -= n; |
708 | string += n; | |
a168702a GM |
709 | |
710 | /* Turn appearance modes off. */ | |
711 | turn_off_face (f, face_id); | |
ed8dad6b | 712 | tty_turn_off_highlight (tty); |
a4decb7f | 713 | } |
177c0ea7 | 714 | |
6548cf00 | 715 | cmcheckmagic (tty); |
08a24c47 JB |
716 | } |
717 | ||
da8e1115 KL |
718 | /* An implementation of insert_glyphs for termcap frames. */ |
719 | ||
ed8dad6b | 720 | static void |
385ed61f | 721 | tty_insert_glyphs (struct frame *f, struct glyph *start, int len) |
3224dac1 KL |
722 | { |
723 | char *buf; | |
724 | struct glyph *glyph = NULL; | |
af645abf KH |
725 | unsigned char *conversion_buffer; |
726 | unsigned char space[1]; | |
727 | struct coding_system *coding; | |
3224dac1 KL |
728 | |
729 | struct tty_display_info *tty = FRAME_TTY (f); | |
08a24c47 | 730 | |
fca177d4 | 731 | if (tty->TS_ins_multi_chars) |
08a24c47 | 732 | { |
fca177d4 | 733 | buf = tparam (tty->TS_ins_multi_chars, 0, 0, len); |
6548cf00 | 734 | OUTPUT1 (tty, buf); |
9ac0d9e0 | 735 | xfree (buf); |
08a24c47 | 736 | if (start) |
385ed61f | 737 | write_glyphs (f, start, len); |
08a24c47 JB |
738 | return; |
739 | } | |
740 | ||
ed8dad6b | 741 | tty_turn_on_insert (tty); |
6548cf00 | 742 | cmplus (tty, len); |
af645abf KH |
743 | |
744 | if (! start) | |
745 | space[0] = SPACEGLYPH; | |
746 | ||
747 | /* If terminal_coding does any conversion, use it, otherwise use | |
748 | safe_terminal_coding. We can't use CODING_REQUIRE_ENCODING here | |
749 | because it always return 1 if the member src_multibyte is 1. */ | |
fad2f685 KL |
750 | coding = (FRAME_TERMINAL_CODING (f)->common_flags & CODING_REQUIRE_ENCODING_MASK |
751 | ? FRAME_TERMINAL_CODING (f) : &safe_terminal_coding); | |
af645abf KH |
752 | /* The mode bit CODING_MODE_LAST_BLOCK should be set to 1 only at |
753 | the tail. */ | |
754 | coding->mode &= ~CODING_MODE_LAST_BLOCK; | |
755 | ||
07109bf9 | 756 | while (len-- > 0) |
08a24c47 | 757 | { |
fca177d4 | 758 | OUTPUT1_IF (tty, tty->TS_ins_char); |
08a24c47 | 759 | if (!start) |
32de38e4 | 760 | { |
af645abf KH |
761 | conversion_buffer = space; |
762 | coding->produced = 1; | |
32de38e4 | 763 | } |
08a24c47 | 764 | else |
08a24c47 | 765 | { |
ed8dad6b | 766 | tty_highlight_if_desired (tty); |
32de38e4 | 767 | turn_on_face (f, start->face_id); |
816be8b8 | 768 | glyph = start; |
a168702a | 769 | ++start; |
a4decb7f KH |
770 | /* We must open sufficient space for a character which |
771 | occupies more than one column. */ | |
a168702a | 772 | while (len && CHAR_GLYPH_PADDING_P (*start)) |
a4decb7f | 773 | { |
fca177d4 | 774 | OUTPUT1_IF (tty, tty->TS_ins_char); |
a4decb7f KH |
775 | start++, len--; |
776 | } | |
a4decb7f | 777 | |
32de38e4 KH |
778 | if (len <= 0) |
779 | /* This is the last glyph. */ | |
af645abf | 780 | coding->mode |= CODING_MODE_LAST_BLOCK; |
32de38e4 | 781 | |
fad2f685 | 782 | conversion_buffer = encode_terminal_code (glyph, 1, coding); |
32de38e4 | 783 | } |
a4decb7f | 784 | |
af645abf | 785 | if (coding->produced > 0) |
08a24c47 | 786 | { |
1a935bfd | 787 | BLOCK_INPUT; |
fad2f685 | 788 | fwrite (conversion_buffer, 1, coding->produced, tty->output); |
0b0d3e0b KL |
789 | if (ferror (tty->output)) |
790 | clearerr (tty->output); | |
791 | if (tty->termscript) | |
fad2f685 | 792 | fwrite (conversion_buffer, 1, coding->produced, tty->termscript); |
1a935bfd | 793 | UNBLOCK_INPUT; |
08a24c47 JB |
794 | } |
795 | ||
fca177d4 | 796 | OUTPUT1_IF (tty, tty->TS_pad_inserted_char); |
32de38e4 | 797 | if (start) |
65aa5e85 GM |
798 | { |
799 | turn_off_face (f, glyph->face_id); | |
ed8dad6b | 800 | tty_turn_off_highlight (tty); |
65aa5e85 | 801 | } |
9a6b6f92 | 802 | } |
177c0ea7 | 803 | |
6548cf00 | 804 | cmcheckmagic (tty); |
08a24c47 JB |
805 | } |
806 | ||
da8e1115 KL |
807 | /* An implementation of delete_glyphs for termcap frames. */ |
808 | ||
ed8dad6b | 809 | static void |
385ed61f | 810 | tty_delete_glyphs (struct frame *f, int n) |
3224dac1 KL |
811 | { |
812 | char *buf; | |
813 | register int i; | |
3224dac1 KL |
814 | |
815 | struct tty_display_info *tty = FRAME_TTY (f); | |
6548cf00 | 816 | |
fca177d4 | 817 | if (tty->delete_in_insert_mode) |
08a24c47 | 818 | { |
ed8dad6b | 819 | tty_turn_on_insert (tty); |
08a24c47 JB |
820 | } |
821 | else | |
822 | { | |
ed8dad6b | 823 | tty_turn_off_insert (tty); |
fca177d4 | 824 | OUTPUT_IF (tty, tty->TS_delete_mode); |
08a24c47 | 825 | } |
daf01701 | 826 | |
fca177d4 | 827 | if (tty->TS_del_multi_chars) |
08a24c47 | 828 | { |
fca177d4 | 829 | buf = tparam (tty->TS_del_multi_chars, 0, 0, n); |
6548cf00 | 830 | OUTPUT1 (tty, buf); |
9ac0d9e0 | 831 | xfree (buf); |
08a24c47 JB |
832 | } |
833 | else | |
834 | for (i = 0; i < n; i++) | |
fca177d4 KL |
835 | OUTPUT1 (tty, tty->TS_del_char); |
836 | if (!tty->delete_in_insert_mode) | |
837 | OUTPUT_IF (tty, tty->TS_end_delete_mode); | |
08a24c47 JB |
838 | } |
839 | \f | |
da8e1115 KL |
840 | /* An implementation of ins_del_lines for termcap frames. */ |
841 | ||
ed8dad6b | 842 | static void |
385ed61f | 843 | tty_ins_del_lines (struct frame *f, int vpos, int n) |
3224dac1 | 844 | { |
3224dac1 KL |
845 | struct tty_display_info *tty = FRAME_TTY (f); |
846 | char *multi = n > 0 ? tty->TS_ins_multi_lines : tty->TS_del_multi_lines; | |
847 | char *single = n > 0 ? tty->TS_ins_line : tty->TS_del_line; | |
848 | char *scroll = n > 0 ? tty->TS_rev_scroll : tty->TS_fwd_scroll; | |
849 | ||
850 | register int i = n > 0 ? n : -n; | |
851 | register char *buf; | |
852 | ||
853 | /* If the lines below the insertion are being pushed | |
854 | into the end of the window, this is the same as clearing; | |
855 | and we know the lines are already clear, since the matching | |
856 | deletion has already been done. So can ignore this. */ | |
857 | /* If the lines below the deletion are blank lines coming | |
858 | out of the end of the window, don't bother, | |
859 | as there will be a matching inslines later that will flush them. */ | |
860 | if (FRAME_SCROLL_REGION_OK (f) | |
861 | && vpos + i >= tty->specified_window) | |
862 | return; | |
863 | if (!FRAME_MEMORY_BELOW_FRAME (f) | |
864 | && vpos + i >= FRAME_LINES (f)) | |
865 | return; | |
866 | ||
867 | if (multi) | |
08a24c47 | 868 | { |
6839f1e2 | 869 | raw_cursor_to (f, vpos, 0); |
ed8dad6b | 870 | tty_background_highlight (tty); |
3224dac1 KL |
871 | buf = tparam (multi, 0, 0, i); |
872 | OUTPUT (tty, buf); | |
873 | xfree (buf); | |
874 | } | |
875 | else if (single) | |
876 | { | |
6839f1e2 | 877 | raw_cursor_to (f, vpos, 0); |
ed8dad6b | 878 | tty_background_highlight (tty); |
3224dac1 KL |
879 | while (--i >= 0) |
880 | OUTPUT (tty, single); | |
881 | if (tty->TF_teleray) | |
882 | curX (tty) = 0; | |
08a24c47 | 883 | } |
08a24c47 JB |
884 | else |
885 | { | |
ed8dad6b | 886 | tty_set_scroll_region (f, vpos, tty->specified_window); |
3224dac1 | 887 | if (n < 0) |
6839f1e2 | 888 | raw_cursor_to (f, tty->specified_window - 1, 0); |
08a24c47 | 889 | else |
6839f1e2 | 890 | raw_cursor_to (f, vpos, 0); |
ed8dad6b | 891 | tty_background_highlight (tty); |
3224dac1 KL |
892 | while (--i >= 0) |
893 | OUTPUTL (tty, scroll, tty->specified_window - vpos); | |
ed8dad6b | 894 | tty_set_scroll_region (f, 0, tty->specified_window); |
3224dac1 KL |
895 | } |
896 | ||
897 | if (!FRAME_SCROLL_REGION_OK (f) | |
898 | && FRAME_MEMORY_BELOW_FRAME (f) | |
899 | && n < 0) | |
900 | { | |
385ed61f KL |
901 | cursor_to (f, FRAME_LINES (f) + n, 0); |
902 | clear_to_end (f); | |
08a24c47 JB |
903 | } |
904 | } | |
905 | \f | |
906 | /* Compute cost of sending "str", in characters, | |
907 | not counting any line-dependent padding. */ | |
908 | ||
909 | int | |
6839f1e2 | 910 | string_cost (char *str) |
08a24c47 JB |
911 | { |
912 | cost = 0; | |
913 | if (str) | |
914 | tputs (str, 0, evalcost); | |
915 | return cost; | |
916 | } | |
917 | ||
918 | /* Compute cost of sending "str", in characters, | |
919 | counting any line-dependent padding at one line. */ | |
920 | ||
921 | static int | |
6839f1e2 | 922 | string_cost_one_line (char *str) |
08a24c47 JB |
923 | { |
924 | cost = 0; | |
925 | if (str) | |
926 | tputs (str, 1, evalcost); | |
927 | return cost; | |
928 | } | |
929 | ||
930 | /* Compute per line amount of line-dependent padding, | |
931 | in tenths of characters. */ | |
932 | ||
933 | int | |
6839f1e2 | 934 | per_line_cost (char *str) |
08a24c47 JB |
935 | { |
936 | cost = 0; | |
937 | if (str) | |
938 | tputs (str, 0, evalcost); | |
939 | cost = - cost; | |
940 | if (str) | |
941 | tputs (str, 10, evalcost); | |
942 | return cost; | |
943 | } | |
944 | ||
945 | #ifndef old | |
946 | /* char_ins_del_cost[n] is cost of inserting N characters. | |
8dd0c7cb | 947 | char_ins_del_cost[-n] is cost of deleting N characters. |
9882535b | 948 | The length of this vector is based on max_frame_cols. */ |
08a24c47 JB |
949 | |
950 | int *char_ins_del_vector; | |
951 | ||
9882535b | 952 | #define char_ins_del_cost(f) (&char_ins_del_vector[FRAME_COLS ((f))]) |
08a24c47 JB |
953 | #endif |
954 | ||
955 | /* ARGSUSED */ | |
956 | static void | |
6839f1e2 | 957 | calculate_ins_del_char_costs (struct frame *f) |
08a24c47 | 958 | { |
28d7d09f | 959 | struct tty_display_info *tty = FRAME_TTY (f); |
08a24c47 JB |
960 | int ins_startup_cost, del_startup_cost; |
961 | int ins_cost_per_char, del_cost_per_char; | |
962 | register int i; | |
963 | register int *p; | |
964 | ||
fca177d4 | 965 | if (tty->TS_ins_multi_chars) |
08a24c47 JB |
966 | { |
967 | ins_cost_per_char = 0; | |
fca177d4 | 968 | ins_startup_cost = string_cost_one_line (tty->TS_ins_multi_chars); |
08a24c47 | 969 | } |
fca177d4 KL |
970 | else if (tty->TS_ins_char || tty->TS_pad_inserted_char |
971 | || (tty->TS_insert_mode && tty->TS_end_insert_mode)) | |
08a24c47 | 972 | { |
fca177d4 KL |
973 | ins_startup_cost = (30 * (string_cost (tty->TS_insert_mode) |
974 | + string_cost (tty->TS_end_insert_mode))) / 100; | |
975 | ins_cost_per_char = (string_cost_one_line (tty->TS_ins_char) | |
976 | + string_cost_one_line (tty->TS_pad_inserted_char)); | |
08a24c47 JB |
977 | } |
978 | else | |
979 | { | |
980 | ins_startup_cost = 9999; | |
981 | ins_cost_per_char = 0; | |
982 | } | |
983 | ||
fca177d4 | 984 | if (tty->TS_del_multi_chars) |
08a24c47 JB |
985 | { |
986 | del_cost_per_char = 0; | |
fca177d4 | 987 | del_startup_cost = string_cost_one_line (tty->TS_del_multi_chars); |
08a24c47 | 988 | } |
fca177d4 | 989 | else if (tty->TS_del_char) |
08a24c47 | 990 | { |
fca177d4 KL |
991 | del_startup_cost = (string_cost (tty->TS_delete_mode) |
992 | + string_cost (tty->TS_end_delete_mode)); | |
993 | if (tty->delete_in_insert_mode) | |
08a24c47 | 994 | del_startup_cost /= 2; |
fca177d4 | 995 | del_cost_per_char = string_cost_one_line (tty->TS_del_char); |
08a24c47 JB |
996 | } |
997 | else | |
998 | { | |
999 | del_startup_cost = 9999; | |
1000 | del_cost_per_char = 0; | |
1001 | } | |
1002 | ||
1003 | /* Delete costs are at negative offsets */ | |
fca177d4 KL |
1004 | p = &char_ins_del_cost (f)[0]; |
1005 | for (i = FRAME_COLS (f); --i >= 0;) | |
08a24c47 JB |
1006 | *--p = (del_startup_cost += del_cost_per_char); |
1007 | ||
1008 | /* Doing nothing is free */ | |
fca177d4 | 1009 | p = &char_ins_del_cost (f)[0]; |
08a24c47 JB |
1010 | *p++ = 0; |
1011 | ||
1012 | /* Insert costs are at positive offsets */ | |
fca177d4 | 1013 | for (i = FRAME_COLS (f); --i >= 0;) |
08a24c47 JB |
1014 | *p++ = (ins_startup_cost += ins_cost_per_char); |
1015 | } | |
1016 | ||
dfcf069d | 1017 | void |
6839f1e2 | 1018 | calculate_costs (struct frame *frame) |
08a24c47 | 1019 | { |
9f732a77 | 1020 | FRAME_COST_BAUD_RATE (frame) = baud_rate; |
08a24c47 | 1021 | |
28d440ab | 1022 | if (FRAME_TERMCAP_P (frame)) |
daf01701 KL |
1023 | { |
1024 | struct tty_display_info *tty = FRAME_TTY (frame); | |
1025 | register char *f = (tty->TS_set_scroll_region | |
1026 | ? tty->TS_set_scroll_region | |
1027 | : tty->TS_set_scroll_region_1); | |
08a24c47 | 1028 | |
daf01701 | 1029 | FRAME_SCROLL_REGION_COST (frame) = string_cost (f); |
08a24c47 | 1030 | |
daf01701 | 1031 | tty->costs_set = 1; |
08a24c47 | 1032 | |
daf01701 KL |
1033 | /* These variables are only used for terminal stuff. They are |
1034 | allocated once for the terminal frame of X-windows emacs, but not | |
1035 | used afterwards. | |
8dd0c7cb | 1036 | |
daf01701 KL |
1037 | char_ins_del_vector (i.e., char_ins_del_cost) isn't used because |
1038 | X turns off char_ins_del_ok. */ | |
08a24c47 | 1039 | |
daf01701 KL |
1040 | max_frame_lines = max (max_frame_lines, FRAME_LINES (frame)); |
1041 | max_frame_cols = max (max_frame_cols, FRAME_COLS (frame)); | |
08a24c47 | 1042 | |
daf01701 KL |
1043 | if (char_ins_del_vector != 0) |
1044 | char_ins_del_vector | |
1045 | = (int *) xrealloc (char_ins_del_vector, | |
1046 | (sizeof (int) | |
1047 | + 2 * max_frame_cols * sizeof (int))); | |
1048 | else | |
1049 | char_ins_del_vector | |
1050 | = (int *) xmalloc (sizeof (int) | |
1051 | + 2 * max_frame_cols * sizeof (int)); | |
08a24c47 | 1052 | |
daf01701 KL |
1053 | bzero (char_ins_del_vector, (sizeof (int) |
1054 | + 2 * max_frame_cols * sizeof (int))); | |
1055 | ||
1056 | ||
1057 | if (f && (!tty->TS_ins_line && !tty->TS_del_line)) | |
1058 | do_line_insertion_deletion_costs (frame, | |
1059 | tty->TS_rev_scroll, tty->TS_ins_multi_lines, | |
1060 | tty->TS_fwd_scroll, tty->TS_del_multi_lines, | |
1061 | f, f, 1); | |
1062 | else | |
1063 | do_line_insertion_deletion_costs (frame, | |
1064 | tty->TS_ins_line, tty->TS_ins_multi_lines, | |
1065 | tty->TS_del_line, tty->TS_del_multi_lines, | |
1066 | 0, 0, 1); | |
1067 | ||
1068 | calculate_ins_del_char_costs (frame); | |
1069 | ||
1070 | /* Don't use TS_repeat if its padding is worse than sending the chars */ | |
1071 | if (tty->TS_repeat && per_line_cost (tty->TS_repeat) * baud_rate < 9000) | |
1072 | tty->RPov = string_cost (tty->TS_repeat); | |
1073 | else | |
1074 | tty->RPov = FRAME_COLS (frame) * 2; | |
08a24c47 | 1075 | |
daf01701 KL |
1076 | cmcostinit (FRAME_TTY (frame)); /* set up cursor motion costs */ |
1077 | } | |
08a24c47 JB |
1078 | } |
1079 | \f | |
a796ac82 JB |
1080 | struct fkey_table { |
1081 | char *cap, *name; | |
1082 | }; | |
1083 | ||
01d8deb0 ER |
1084 | /* Termcap capability names that correspond directly to X keysyms. |
1085 | Some of these (marked "terminfo") aren't supplied by old-style | |
1086 | (Berkeley) termcap entries. They're listed in X keysym order; | |
1087 | except we put the keypad keys first, so that if they clash with | |
1088 | other keys (as on the IBM PC keyboard) they get overridden. | |
1089 | */ | |
1090 | ||
a168702a GM |
1091 | static struct fkey_table keys[] = |
1092 | { | |
8103ad1a PJ |
1093 | {"kh", "home"}, /* termcap */ |
1094 | {"kl", "left"}, /* termcap */ | |
1095 | {"ku", "up"}, /* termcap */ | |
1096 | {"kr", "right"}, /* termcap */ | |
1097 | {"kd", "down"}, /* termcap */ | |
1098 | {"%8", "prior"}, /* terminfo */ | |
1099 | {"%5", "next"}, /* terminfo */ | |
1100 | {"@7", "end"}, /* terminfo */ | |
1101 | {"@1", "begin"}, /* terminfo */ | |
1102 | {"*6", "select"}, /* terminfo */ | |
1103 | {"%9", "print"}, /* terminfo */ | |
1104 | {"@4", "execute"}, /* terminfo --- actually the `command' key */ | |
01d8deb0 ER |
1105 | /* |
1106 | * "insert" --- see below | |
1107 | */ | |
8103ad1a PJ |
1108 | {"&8", "undo"}, /* terminfo */ |
1109 | {"%0", "redo"}, /* terminfo */ | |
1110 | {"%7", "menu"}, /* terminfo --- actually the `options' key */ | |
1111 | {"@0", "find"}, /* terminfo */ | |
1112 | {"@2", "cancel"}, /* terminfo */ | |
1113 | {"%1", "help"}, /* terminfo */ | |
01d8deb0 ER |
1114 | /* |
1115 | * "break" goes here, but can't be reliably intercepted with termcap | |
1116 | */ | |
8103ad1a | 1117 | {"&4", "reset"}, /* terminfo --- actually `restart' */ |
01d8deb0 ER |
1118 | /* |
1119 | * "system" and "user" --- no termcaps | |
1120 | */ | |
8103ad1a PJ |
1121 | {"kE", "clearline"}, /* terminfo */ |
1122 | {"kA", "insertline"}, /* terminfo */ | |
1123 | {"kL", "deleteline"}, /* terminfo */ | |
1124 | {"kI", "insertchar"}, /* terminfo */ | |
1125 | {"kD", "deletechar"}, /* terminfo */ | |
1126 | {"kB", "backtab"}, /* terminfo */ | |
01d8deb0 ER |
1127 | /* |
1128 | * "kp_backtab", "kp-space", "kp-tab" --- no termcaps | |
1129 | */ | |
8103ad1a | 1130 | {"@8", "kp-enter"}, /* terminfo */ |
01d8deb0 ER |
1131 | /* |
1132 | * "kp-f1", "kp-f2", "kp-f3" "kp-f4", | |
1133 | * "kp-multiply", "kp-add", "kp-separator", | |
1134 | * "kp-subtract", "kp-decimal", "kp-divide", "kp-0"; | |
1135 | * --- no termcaps for any of these. | |
1136 | */ | |
8103ad1a | 1137 | {"K4", "kp-1"}, /* terminfo */ |
01d8deb0 ER |
1138 | /* |
1139 | * "kp-2" --- no termcap | |
1140 | */ | |
8103ad1a | 1141 | {"K5", "kp-3"}, /* terminfo */ |
01d8deb0 ER |
1142 | /* |
1143 | * "kp-4" --- no termcap | |
1144 | */ | |
8103ad1a | 1145 | {"K2", "kp-5"}, /* terminfo */ |
01d8deb0 ER |
1146 | /* |
1147 | * "kp-6" --- no termcap | |
1148 | */ | |
8103ad1a | 1149 | {"K1", "kp-7"}, /* terminfo */ |
01d8deb0 ER |
1150 | /* |
1151 | * "kp-8" --- no termcap | |
1152 | */ | |
8103ad1a | 1153 | {"K3", "kp-9"}, /* terminfo */ |
01d8deb0 ER |
1154 | /* |
1155 | * "kp-equal" --- no termcap | |
1156 | */ | |
8103ad1a PJ |
1157 | {"k1", "f1"}, |
1158 | {"k2", "f2"}, | |
1159 | {"k3", "f3"}, | |
1160 | {"k4", "f4"}, | |
1161 | {"k5", "f5"}, | |
1162 | {"k6", "f6"}, | |
1163 | {"k7", "f7"}, | |
1164 | {"k8", "f8"}, | |
60ec7b7e DN |
1165 | {"k9", "f9"}, |
1166 | ||
1167 | {"&0", "S-cancel"}, /*shifted cancel key*/ | |
1168 | {"&9", "S-begin"}, /*shifted begin key*/ | |
1169 | {"*0", "S-find"}, /*shifted find key*/ | |
1170 | {"*1", "S-execute"}, /*shifted execute? actually shifted command key*/ | |
1171 | {"*4", "S-delete"}, /*shifted delete-character key*/ | |
1172 | {"*7", "S-end"}, /*shifted end key*/ | |
1173 | {"*8", "S-clearline"}, /*shifted clear-to end-of-line key*/ | |
1174 | {"#1", "S-help"}, /*shifted help key*/ | |
1175 | {"#2", "S-home"}, /*shifted home key*/ | |
1176 | {"#3", "S-insert"}, /*shifted insert-character key*/ | |
1177 | {"#4", "S-left"}, /*shifted left-arrow key*/ | |
1178 | {"%d", "S-menu"}, /*shifted menu? actually shifted options key*/ | |
1179 | {"%c", "S-next"}, /*shifted next key*/ | |
1180 | {"%e", "S-prior"}, /*shifted previous key*/ | |
1181 | {"%f", "S-print"}, /*shifted print key*/ | |
1182 | {"%g", "S-redo"}, /*shifted redo key*/ | |
1183 | {"%i", "S-right"}, /*shifted right-arrow key*/ | |
1184 | {"!3", "S-undo"} /*shifted undo key*/ | |
a796ac82 JB |
1185 | }; |
1186 | ||
e7cf0fa0 KL |
1187 | static char **term_get_fkeys_address; |
1188 | static KBOARD *term_get_fkeys_kboard; | |
f2a00342 | 1189 | static Lisp_Object term_get_fkeys_1 (); |
465db27b | 1190 | |
01d8deb0 | 1191 | /* Find the escape codes sent by the function keys for Vfunction_key_map. |
177c0ea7 | 1192 | This function scans the termcap function key sequence entries, and |
01d8deb0 ER |
1193 | adds entries to Vfunction_key_map for each function key it finds. */ |
1194 | ||
ed8dad6b | 1195 | static void |
e7cf0fa0 | 1196 | term_get_fkeys (address, kboard) |
5c2c7893 | 1197 | char **address; |
e7cf0fa0 | 1198 | KBOARD *kboard; |
f2a00342 RM |
1199 | { |
1200 | /* We run the body of the function (term_get_fkeys_1) and ignore all Lisp | |
1201 | errors during the call. The only errors should be from Fdefine_key | |
1202 | when given a key sequence containing an invalid prefix key. If the | |
1203 | termcap defines function keys which use a prefix that is already bound | |
1204 | to a command by the default bindings, we should silently ignore that | |
1205 | function key specification, rather than giving the user an error and | |
1206 | refusing to run at all on such a terminal. */ | |
1207 | ||
1208 | extern Lisp_Object Fidentity (); | |
e7cf0fa0 KL |
1209 | term_get_fkeys_address = address; |
1210 | term_get_fkeys_kboard = kboard; | |
f2a00342 RM |
1211 | internal_condition_case (term_get_fkeys_1, Qerror, Fidentity); |
1212 | } | |
1213 | ||
1214 | static Lisp_Object | |
1215 | term_get_fkeys_1 () | |
5c2c7893 | 1216 | { |
5c2c7893 JB |
1217 | int i; |
1218 | ||
e7cf0fa0 KL |
1219 | char **address = term_get_fkeys_address; |
1220 | KBOARD *kboard = term_get_fkeys_kboard; | |
1221 | ||
3e65092f RS |
1222 | /* This can happen if CANNOT_DUMP or with strange options. */ |
1223 | if (!initialized) | |
ac09dc1e | 1224 | kboard->Vlocal_function_key_map = Fmake_sparse_keymap (Qnil); |
3e65092f | 1225 | |
5c2c7893 JB |
1226 | for (i = 0; i < (sizeof (keys)/sizeof (keys[0])); i++) |
1227 | { | |
1228 | char *sequence = tgetstr (keys[i].cap, address); | |
1229 | if (sequence) | |
ac09dc1e | 1230 | Fdefine_key (kboard->Vlocal_function_key_map, build_string (sequence), |
f2a00342 RM |
1231 | Fmake_vector (make_number (1), |
1232 | intern (keys[i].name))); | |
5c2c7893 | 1233 | } |
a796ac82 JB |
1234 | |
1235 | /* The uses of the "k0" capability are inconsistent; sometimes it | |
1236 | describes F10, whereas othertimes it describes F0 and "k;" describes F10. | |
eb8c3be9 | 1237 | We will attempt to politely accommodate both systems by testing for |
a796ac82 JB |
1238 | "k;", and if it is present, assuming that "k0" denotes F0, otherwise F10. |
1239 | */ | |
1240 | { | |
1241 | char *k_semi = tgetstr ("k;", address); | |
1242 | char *k0 = tgetstr ("k0", address); | |
1243 | char *k0_name = "f10"; | |
1244 | ||
1245 | if (k_semi) | |
1246 | { | |
95c11956 SM |
1247 | if (k0) |
1248 | /* Define f0 first, so that f10 takes precedence in case the | |
1249 | key sequences happens to be the same. */ | |
ac09dc1e | 1250 | Fdefine_key (kboard->Vlocal_function_key_map, build_string (k0), |
95c11956 | 1251 | Fmake_vector (make_number (1), intern ("f0"))); |
ac09dc1e | 1252 | Fdefine_key (kboard->Vlocal_function_key_map, build_string (k_semi), |
f2a00342 | 1253 | Fmake_vector (make_number (1), intern ("f10"))); |
a796ac82 | 1254 | } |
95c11956 | 1255 | else if (k0) |
ac09dc1e | 1256 | Fdefine_key (kboard->Vlocal_function_key_map, build_string (k0), |
f2a00342 | 1257 | Fmake_vector (make_number (1), intern (k0_name))); |
a796ac82 | 1258 | } |
01d8deb0 ER |
1259 | |
1260 | /* Set up cookies for numbered function keys above f10. */ | |
1261 | { | |
1262 | char fcap[3], fkey[4]; | |
1263 | ||
fc4f24da | 1264 | fcap[0] = 'F'; fcap[2] = '\0'; |
01d8deb0 ER |
1265 | for (i = 11; i < 64; i++) |
1266 | { | |
1267 | if (i <= 19) | |
1268 | fcap[1] = '1' + i - 11; | |
1269 | else if (i <= 45) | |
b59ab95c | 1270 | fcap[1] = 'A' + i - 20; |
01d8deb0 | 1271 | else |
b59ab95c | 1272 | fcap[1] = 'a' + i - 46; |
01d8deb0 | 1273 | |
fc4f24da RS |
1274 | { |
1275 | char *sequence = tgetstr (fcap, address); | |
1276 | if (sequence) | |
1277 | { | |
465db27b | 1278 | sprintf (fkey, "f%d", i); |
ac09dc1e | 1279 | Fdefine_key (kboard->Vlocal_function_key_map, build_string (sequence), |
f2a00342 RM |
1280 | Fmake_vector (make_number (1), |
1281 | intern (fkey))); | |
fc4f24da RS |
1282 | } |
1283 | } | |
01d8deb0 ER |
1284 | } |
1285 | } | |
1286 | ||
1287 | /* | |
1288 | * Various mappings to try and get a better fit. | |
1289 | */ | |
1290 | { | |
fc4f24da RS |
1291 | #define CONDITIONAL_REASSIGN(cap1, cap2, sym) \ |
1292 | if (!tgetstr (cap1, address)) \ | |
1293 | { \ | |
1294 | char *sequence = tgetstr (cap2, address); \ | |
e7cf0fa0 | 1295 | if (sequence) \ |
ac09dc1e | 1296 | Fdefine_key (kboard->Vlocal_function_key_map, build_string (sequence), \ |
e7cf0fa0 KL |
1297 | Fmake_vector (make_number (1), \ |
1298 | intern (sym))); \ | |
fc4f24da | 1299 | } |
177c0ea7 | 1300 | |
01d8deb0 | 1301 | /* if there's no key_next keycap, map key_npage to `next' keysym */ |
27b61785 | 1302 | CONDITIONAL_REASSIGN ("%5", "kN", "next"); |
01d8deb0 | 1303 | /* if there's no key_prev keycap, map key_ppage to `previous' keysym */ |
381d11a1 | 1304 | CONDITIONAL_REASSIGN ("%8", "kP", "prior"); |
01d8deb0 | 1305 | /* if there's no key_dc keycap, map key_ic to `insert' keysym */ |
27b61785 | 1306 | CONDITIONAL_REASSIGN ("kD", "kI", "insert"); |
403c995b RS |
1307 | /* if there's no key_end keycap, map key_ll to 'end' keysym */ |
1308 | CONDITIONAL_REASSIGN ("@7", "kH", "end"); | |
0a7f697a KH |
1309 | |
1310 | /* IBM has their own non-standard dialect of terminfo. | |
1311 | If the standard name isn't found, try the IBM name. */ | |
1312 | CONDITIONAL_REASSIGN ("kB", "KO", "backtab"); | |
1313 | CONDITIONAL_REASSIGN ("@4", "kJ", "execute"); /* actually "action" */ | |
1314 | CONDITIONAL_REASSIGN ("@4", "kc", "execute"); /* actually "command" */ | |
1315 | CONDITIONAL_REASSIGN ("%7", "ki", "menu"); | |
1316 | CONDITIONAL_REASSIGN ("@7", "kw", "end"); | |
1317 | CONDITIONAL_REASSIGN ("F1", "k<", "f11"); | |
1318 | CONDITIONAL_REASSIGN ("F2", "k>", "f12"); | |
1319 | CONDITIONAL_REASSIGN ("%1", "kq", "help"); | |
1320 | CONDITIONAL_REASSIGN ("*6", "kU", "select"); | |
1dd40212 | 1321 | #undef CONDITIONAL_REASSIGN |
01d8deb0 | 1322 | } |
a168702a GM |
1323 | |
1324 | return Qnil; | |
5c2c7893 JB |
1325 | } |
1326 | ||
1327 | \f | |
a168702a GM |
1328 | /*********************************************************************** |
1329 | Character Display Information | |
1330 | ***********************************************************************/ | |
1331 | ||
47021b11 KS |
1332 | /* Avoid name clash with functions defined in xterm.c */ |
1333 | #ifdef static | |
1334 | #define append_glyph append_glyph_term | |
1335 | #define produce_stretch_glyph produce_stretch_glyph_term | |
1336 | #endif | |
1337 | ||
a168702a | 1338 | static void append_glyph P_ ((struct it *)); |
f46c2aff | 1339 | static void produce_stretch_glyph P_ ((struct it *)); |
a168702a GM |
1340 | |
1341 | ||
1342 | /* Append glyphs to IT's glyph_row. Called from produce_glyphs for | |
d2b4c17d KH |
1343 | terminal frames if IT->glyph_row != NULL. IT->char_to_display is |
1344 | the character for which to produce glyphs; IT->face_id contains the | |
1345 | character's face. Padding glyphs are appended if IT->c has a | |
1346 | IT->pixel_width > 1. */ | |
177c0ea7 | 1347 | |
a168702a GM |
1348 | static void |
1349 | append_glyph (it) | |
1350 | struct it *it; | |
1351 | { | |
1352 | struct glyph *glyph, *end; | |
1353 | int i; | |
1354 | ||
1355 | xassert (it->glyph_row); | |
1356 | glyph = (it->glyph_row->glyphs[it->area] | |
1357 | + it->glyph_row->used[it->area]); | |
1358 | end = it->glyph_row->glyphs[1 + it->area]; | |
1359 | ||
177c0ea7 JB |
1360 | for (i = 0; |
1361 | i < it->pixel_width && glyph < end; | |
a168702a GM |
1362 | ++i) |
1363 | { | |
1364 | glyph->type = CHAR_GLYPH; | |
d13f3e2e | 1365 | glyph->pixel_width = 1; |
d2b4c17d | 1366 | glyph->u.ch = it->char_to_display; |
32de38e4 KH |
1367 | glyph->face_id = it->face_id; |
1368 | glyph->padding_p = i > 0; | |
a168702a GM |
1369 | glyph->charpos = CHARPOS (it->position); |
1370 | glyph->object = it->object; | |
177c0ea7 | 1371 | |
a168702a GM |
1372 | ++it->glyph_row->used[it->area]; |
1373 | ++glyph; | |
1374 | } | |
1375 | } | |
1376 | ||
1377 | ||
b50fe468 RS |
1378 | /* Produce glyphs for the display element described by IT. *IT |
1379 | specifies what we want to produce a glyph for (character, image, ...), | |
1380 | and where in the glyph matrix we currently are (glyph row and hpos). | |
1381 | produce_glyphs fills in output fields of *IT with information such as the | |
1382 | pixel width and height of a character, and maybe output actual glyphs at | |
a168702a | 1383 | the same time if IT->glyph_row is non-null. See the explanation of |
b50fe468 RS |
1384 | struct display_iterator in dispextern.h for an overview. |
1385 | ||
1386 | produce_glyphs also stores the result of glyph width, ascent | |
1387 | etc. computations in *IT. | |
1388 | ||
1389 | IT->glyph_row may be null, in which case produce_glyphs does not | |
1390 | actually fill in the glyphs. This is used in the move_* functions | |
1391 | in xdisp.c for text width and height computations. | |
1392 | ||
1393 | Callers usually don't call produce_glyphs directly; | |
1394 | instead they use the macro PRODUCE_GLYPHS. */ | |
a168702a | 1395 | |
177c0ea7 | 1396 | void |
a168702a GM |
1397 | produce_glyphs (it) |
1398 | struct it *it; | |
1399 | { | |
1400 | /* If a hook is installed, let it do the work. */ | |
1401 | xassert (it->what == IT_CHARACTER | |
c7cba11d | 1402 | || it->what == IT_COMPOSITION |
a168702a | 1403 | || it->what == IT_STRETCH); |
177c0ea7 | 1404 | |
f46c2aff KS |
1405 | if (it->what == IT_STRETCH) |
1406 | { | |
1407 | produce_stretch_glyph (it); | |
1408 | goto done; | |
1409 | } | |
1410 | ||
c7cba11d KH |
1411 | /* Nothing but characters are supported on terminal frames. For a |
1412 | composition sequence, it->c is the first character of the | |
1413 | sequence. */ | |
1414 | xassert (it->what == IT_CHARACTER | |
1415 | || it->what == IT_COMPOSITION); | |
a168702a | 1416 | |
d2b4c17d KH |
1417 | /* Maybe translate single-byte characters to multibyte. */ |
1418 | it->char_to_display = it->c; | |
1419 | ||
a168702a GM |
1420 | if (it->c >= 040 && it->c < 0177) |
1421 | { | |
1422 | it->pixel_width = it->nglyphs = 1; | |
1423 | if (it->glyph_row) | |
1424 | append_glyph (it); | |
1425 | } | |
1426 | else if (it->c == '\n') | |
1427 | it->pixel_width = it->nglyphs = 0; | |
1428 | else if (it->c == '\t') | |
1429 | { | |
2efdbcdd | 1430 | int absolute_x = (it->current_x |
a168702a | 1431 | + it->continuation_lines_width); |
177c0ea7 JB |
1432 | int next_tab_x |
1433 | = (((1 + absolute_x + it->tab_width - 1) | |
a168702a GM |
1434 | / it->tab_width) |
1435 | * it->tab_width); | |
1436 | int nspaces; | |
1437 | ||
1438 | /* If part of the TAB has been displayed on the previous line | |
1439 | which is continued now, continuation_lines_width will have | |
1440 | been incremented already by the part that fitted on the | |
1441 | continued line. So, we will get the right number of spaces | |
1442 | here. */ | |
1443 | nspaces = next_tab_x - absolute_x; | |
177c0ea7 | 1444 | |
a168702a GM |
1445 | if (it->glyph_row) |
1446 | { | |
1447 | int n = nspaces; | |
177c0ea7 | 1448 | |
d2b4c17d | 1449 | it->char_to_display = ' '; |
a168702a | 1450 | it->pixel_width = it->len = 1; |
177c0ea7 | 1451 | |
a168702a GM |
1452 | while (n--) |
1453 | append_glyph (it); | |
a168702a GM |
1454 | } |
1455 | ||
1456 | it->pixel_width = nspaces; | |
1457 | it->nglyphs = nspaces; | |
1458 | } | |
add44890 EZ |
1459 | else if (SINGLE_BYTE_CHAR_P (it->c)) |
1460 | { | |
d2b4c17d KH |
1461 | if (unibyte_display_via_language_environment |
1462 | && (it->c >= 0240 | |
1463 | || !NILP (Vnonascii_translation_table))) | |
1464 | { | |
1465 | int charset; | |
1466 | ||
1467 | it->char_to_display = unibyte_char_to_multibyte (it->c); | |
1468 | charset = CHAR_CHARSET (it->char_to_display); | |
1469 | it->pixel_width = CHARSET_WIDTH (charset); | |
1470 | it->nglyphs = it->pixel_width; | |
1471 | if (it->glyph_row) | |
1472 | append_glyph (it); | |
1473 | } | |
1474 | else | |
1475 | { | |
1476 | /* Coming here means that it->c is from display table, thus we | |
1477 | must send the code as is to the terminal. Although there's | |
1478 | no way to know how many columns it occupies on a screen, it | |
1479 | is a good assumption that a single byte code has 1-column | |
1480 | width. */ | |
1481 | it->pixel_width = it->nglyphs = 1; | |
1482 | if (it->glyph_row) | |
1483 | append_glyph (it); | |
1484 | } | |
add44890 | 1485 | } |
a168702a GM |
1486 | else |
1487 | { | |
c7cba11d KH |
1488 | /* A multi-byte character. The display width is fixed for all |
1489 | characters of the set. Some of the glyphs may have to be | |
1490 | ignored because they are already displayed in a continued | |
1491 | line. */ | |
a168702a GM |
1492 | int charset = CHAR_CHARSET (it->c); |
1493 | ||
c7cba11d | 1494 | it->pixel_width = CHARSET_WIDTH (charset); |
a168702a | 1495 | it->nglyphs = it->pixel_width; |
177c0ea7 | 1496 | |
a168702a GM |
1497 | if (it->glyph_row) |
1498 | append_glyph (it); | |
1499 | } | |
1500 | ||
f46c2aff | 1501 | done: |
177c0ea7 | 1502 | /* Advance current_x by the pixel width as a convenience for |
a168702a GM |
1503 | the caller. */ |
1504 | if (it->area == TEXT_AREA) | |
1505 | it->current_x += it->pixel_width; | |
cfe8a05e GM |
1506 | it->ascent = it->max_ascent = it->phys_ascent = it->max_phys_ascent = 0; |
1507 | it->descent = it->max_descent = it->phys_descent = it->max_phys_descent = 1; | |
a168702a GM |
1508 | } |
1509 | ||
1510 | ||
f46c2aff KS |
1511 | /* Produce a stretch glyph for iterator IT. IT->object is the value |
1512 | of the glyph property displayed. The value must be a list | |
1513 | `(space KEYWORD VALUE ...)' with the following KEYWORD/VALUE pairs | |
1514 | being recognized: | |
1515 | ||
1516 | 1. `:width WIDTH' specifies that the space should be WIDTH * | |
1517 | canonical char width wide. WIDTH may be an integer or floating | |
1518 | point number. | |
1519 | ||
1520 | 2. `:align-to HPOS' specifies that the space should be wide enough | |
1521 | to reach HPOS, a value in canonical character units. */ | |
1522 | ||
1523 | static void | |
1524 | produce_stretch_glyph (it) | |
1525 | struct it *it; | |
1526 | { | |
1527 | /* (space :width WIDTH ...) */ | |
1528 | Lisp_Object prop, plist; | |
1529 | int width = 0, align_to = -1; | |
1530 | int zero_width_ok_p = 0; | |
1531 | double tem; | |
1532 | ||
1533 | /* List should start with `space'. */ | |
1534 | xassert (CONSP (it->object) && EQ (XCAR (it->object), Qspace)); | |
1535 | plist = XCDR (it->object); | |
1536 | ||
1537 | /* Compute the width of the stretch. */ | |
1538 | if ((prop = Fplist_get (plist, QCwidth), !NILP (prop)) | |
1539 | && calc_pixel_width_or_height (&tem, it, prop, 0, 1, 0)) | |
1540 | { | |
1541 | /* Absolute width `:width WIDTH' specified and valid. */ | |
1542 | zero_width_ok_p = 1; | |
1543 | width = (int)(tem + 0.5); | |
1544 | } | |
1545 | else if ((prop = Fplist_get (plist, QCalign_to), !NILP (prop)) | |
1546 | && calc_pixel_width_or_height (&tem, it, prop, 0, 1, &align_to)) | |
1547 | { | |
1548 | if (it->glyph_row == NULL || !it->glyph_row->mode_line_p) | |
feef4f84 | 1549 | align_to = (align_to < 0 |
f46c2aff KS |
1550 | ? 0 |
1551 | : align_to - window_box_left_offset (it->w, TEXT_AREA)); | |
1552 | else if (align_to < 0) | |
1553 | align_to = window_box_left_offset (it->w, TEXT_AREA); | |
1554 | width = max (0, (int)(tem + 0.5) + align_to - it->current_x); | |
1555 | zero_width_ok_p = 1; | |
1556 | } | |
1557 | else | |
1558 | /* Nothing specified -> width defaults to canonical char width. */ | |
1559 | width = FRAME_COLUMN_WIDTH (it->f); | |
1560 | ||
1561 | if (width <= 0 && (width < 0 || !zero_width_ok_p)) | |
1562 | width = 1; | |
1563 | ||
1564 | if (width > 0 && it->glyph_row) | |
1565 | { | |
1566 | Lisp_Object o_object = it->object; | |
1567 | Lisp_Object object = it->stack[it->sp - 1].string; | |
1568 | int n = width; | |
f46c2aff KS |
1569 | |
1570 | if (!STRINGP (object)) | |
1571 | object = it->w->buffer; | |
1572 | it->object = object; | |
d2b4c17d | 1573 | it->char_to_display = ' '; |
f46c2aff KS |
1574 | it->pixel_width = it->len = 1; |
1575 | while (n--) | |
1576 | append_glyph (it); | |
1577 | it->object = o_object; | |
f46c2aff KS |
1578 | } |
1579 | it->pixel_width = width; | |
1580 | it->nglyphs = width; | |
1581 | } | |
1582 | ||
1583 | ||
a168702a GM |
1584 | /* Get information about special display element WHAT in an |
1585 | environment described by IT. WHAT is one of IT_TRUNCATION or | |
1586 | IT_CONTINUATION. Maybe produce glyphs for WHAT if IT has a | |
1587 | non-null glyph_row member. This function ensures that fields like | |
1588 | face_id, c, len of IT are left untouched. */ | |
1589 | ||
1590 | void | |
1591 | produce_special_glyphs (it, what) | |
1592 | struct it *it; | |
1593 | enum display_element_type what; | |
1594 | { | |
1595 | struct it temp_it; | |
072d84a6 | 1596 | GLYPH glyph; |
177c0ea7 | 1597 | |
a168702a GM |
1598 | temp_it = *it; |
1599 | temp_it.dp = NULL; | |
1600 | temp_it.what = IT_CHARACTER; | |
1601 | temp_it.len = 1; | |
7c752c80 | 1602 | temp_it.object = make_number (0); |
a168702a GM |
1603 | bzero (&temp_it.current, sizeof temp_it.current); |
1604 | ||
1605 | if (what == IT_CONTINUATION) | |
1606 | { | |
1607 | /* Continuation glyph. */ | |
1608 | if (it->dp | |
1609 | && INTEGERP (DISP_CONTINUE_GLYPH (it->dp)) | |
1610 | && GLYPH_CHAR_VALID_P (XINT (DISP_CONTINUE_GLYPH (it->dp)))) | |
1611 | { | |
072d84a6 RS |
1612 | glyph = XINT (DISP_CONTINUE_GLYPH (it->dp)); |
1613 | glyph = spec_glyph_lookup_face (XWINDOW (it->window), glyph); | |
a168702a GM |
1614 | } |
1615 | else | |
072d84a6 | 1616 | glyph = '\\'; |
a168702a GM |
1617 | } |
1618 | else if (what == IT_TRUNCATION) | |
1619 | { | |
1620 | /* Truncation glyph. */ | |
1621 | if (it->dp | |
1622 | && INTEGERP (DISP_TRUNC_GLYPH (it->dp)) | |
1623 | && GLYPH_CHAR_VALID_P (XINT (DISP_TRUNC_GLYPH (it->dp)))) | |
1624 | { | |
072d84a6 RS |
1625 | glyph = XINT (DISP_TRUNC_GLYPH (it->dp)); |
1626 | glyph = spec_glyph_lookup_face (XWINDOW (it->window), glyph); | |
a168702a GM |
1627 | } |
1628 | else | |
072d84a6 | 1629 | glyph = '$'; |
a168702a GM |
1630 | } |
1631 | else | |
1632 | abort (); | |
072d84a6 RS |
1633 | |
1634 | temp_it.c = FAST_GLYPH_CHAR (glyph); | |
1635 | temp_it.face_id = FAST_GLYPH_FACE (glyph); | |
1636 | temp_it.len = CHAR_BYTES (temp_it.c); | |
1637 | ||
1638 | produce_glyphs (&temp_it); | |
1639 | it->pixel_width = temp_it.pixel_width; | |
1640 | it->nglyphs = temp_it.pixel_width; | |
a168702a GM |
1641 | } |
1642 | ||
1643 | ||
a168702a GM |
1644 | \f |
1645 | /*********************************************************************** | |
1646 | Faces | |
1647 | ***********************************************************************/ | |
1648 | ||
4e6ba4a4 GM |
1649 | /* Value is non-zero if attribute ATTR may be used. ATTR should be |
1650 | one of the enumerators from enum no_color_bit, or a bit set built | |
1651 | from them. Some display attributes may not be used together with | |
1652 | color; the termcap capability `NC' specifies which ones. */ | |
1653 | ||
fca177d4 KL |
1654 | #define MAY_USE_WITH_COLORS_P(tty, ATTR) \ |
1655 | (tty->TN_max_colors > 0 \ | |
1656 | ? (tty->TN_no_color_video & (ATTR)) == 0 \ | |
1657 | : 1) | |
a168702a | 1658 | |
072d84a6 RS |
1659 | /* Turn appearances of face FACE_ID on tty frame F on. |
1660 | FACE_ID is a realized face ID number, in the face cache. */ | |
a168702a GM |
1661 | |
1662 | static void | |
1663 | turn_on_face (f, face_id) | |
1664 | struct frame *f; | |
1665 | int face_id; | |
1666 | { | |
1667 | struct face *face = FACE_FROM_ID (f, face_id); | |
86a7d192 GM |
1668 | long fg = face->foreground; |
1669 | long bg = face->background; | |
28d7d09f | 1670 | struct tty_display_info *tty = FRAME_TTY (f); |
a168702a | 1671 | |
86a7d192 GM |
1672 | /* Do this first because TS_end_standout_mode may be the same |
1673 | as TS_exit_attribute_mode, which turns all appearances off. */ | |
fca177d4 | 1674 | if (MAY_USE_WITH_COLORS_P (tty, NC_REVERSE)) |
86a7d192 | 1675 | { |
fca177d4 | 1676 | if (tty->TN_max_colors > 0) |
86a7d192 GM |
1677 | { |
1678 | if (fg >= 0 && bg >= 0) | |
1679 | { | |
1680 | /* If the terminal supports colors, we can set them | |
1681 | below without using reverse video. The face's fg | |
1682 | and bg colors are set as they should appear on | |
1683 | the screen, i.e. they take the inverse-video'ness | |
1684 | of the face already into account. */ | |
1685 | } | |
1686 | else if (inverse_video) | |
1687 | { | |
1688 | if (fg == FACE_TTY_DEFAULT_FG_COLOR | |
1689 | || bg == FACE_TTY_DEFAULT_BG_COLOR) | |
ed8dad6b | 1690 | tty_toggle_highlight (tty); |
86a7d192 GM |
1691 | } |
1692 | else | |
1693 | { | |
1694 | if (fg == FACE_TTY_DEFAULT_BG_COLOR | |
1695 | || bg == FACE_TTY_DEFAULT_FG_COLOR) | |
ed8dad6b | 1696 | tty_toggle_highlight (tty); |
86a7d192 GM |
1697 | } |
1698 | } | |
1699 | else | |
1700 | { | |
1701 | /* If we can't display colors, use reverse video | |
1702 | if the face specifies that. */ | |
37526b42 GM |
1703 | if (inverse_video) |
1704 | { | |
1705 | if (fg == FACE_TTY_DEFAULT_FG_COLOR | |
1706 | || bg == FACE_TTY_DEFAULT_BG_COLOR) | |
ed8dad6b | 1707 | tty_toggle_highlight (tty); |
37526b42 GM |
1708 | } |
1709 | else | |
1710 | { | |
1711 | if (fg == FACE_TTY_DEFAULT_BG_COLOR | |
1712 | || bg == FACE_TTY_DEFAULT_FG_COLOR) | |
ed8dad6b | 1713 | tty_toggle_highlight (tty); |
37526b42 | 1714 | } |
86a7d192 GM |
1715 | } |
1716 | } | |
a168702a GM |
1717 | |
1718 | if (face->tty_bold_p) | |
4e6ba4a4 | 1719 | { |
fca177d4 KL |
1720 | if (MAY_USE_WITH_COLORS_P (tty, NC_BOLD)) |
1721 | OUTPUT1_IF (tty, tty->TS_enter_bold_mode); | |
4e6ba4a4 | 1722 | } |
a168702a | 1723 | else if (face->tty_dim_p) |
fca177d4 KL |
1724 | if (MAY_USE_WITH_COLORS_P (tty, NC_DIM)) |
1725 | OUTPUT1_IF (tty, tty->TS_enter_dim_mode); | |
a168702a GM |
1726 | |
1727 | /* Alternate charset and blinking not yet used. */ | |
4e6ba4a4 | 1728 | if (face->tty_alt_charset_p |
fca177d4 KL |
1729 | && MAY_USE_WITH_COLORS_P (tty, NC_ALT_CHARSET)) |
1730 | OUTPUT1_IF (tty, tty->TS_enter_alt_charset_mode); | |
a168702a | 1731 | |
4e6ba4a4 | 1732 | if (face->tty_blinking_p |
fca177d4 KL |
1733 | && MAY_USE_WITH_COLORS_P (tty, NC_BLINK)) |
1734 | OUTPUT1_IF (tty, tty->TS_enter_blink_mode); | |
a168702a | 1735 | |
fca177d4 KL |
1736 | if (face->tty_underline_p && MAY_USE_WITH_COLORS_P (tty, NC_UNDERLINE)) |
1737 | OUTPUT1_IF (tty, tty->TS_enter_underline_mode); | |
a168702a | 1738 | |
fca177d4 | 1739 | if (tty->TN_max_colors > 0) |
a168702a | 1740 | { |
753d161b | 1741 | char *ts, *p; |
177c0ea7 | 1742 | |
fbf34973 | 1743 | ts = tty->standout_mode ? tty->TS_set_background : tty->TS_set_foreground; |
753d161b | 1744 | if (fg >= 0 && ts) |
a168702a | 1745 | { |
fbf34973 | 1746 | p = tparam (ts, NULL, 0, (int) fg); |
6548cf00 | 1747 | OUTPUT (tty, p); |
a168702a GM |
1748 | xfree (p); |
1749 | } | |
1750 | ||
fbf34973 | 1751 | ts = tty->standout_mode ? tty->TS_set_foreground : tty->TS_set_background; |
753d161b | 1752 | if (bg >= 0 && ts) |
a168702a | 1753 | { |
fbf34973 | 1754 | p = tparam (ts, NULL, 0, (int) bg); |
6548cf00 | 1755 | OUTPUT (tty, p); |
a168702a GM |
1756 | xfree (p); |
1757 | } | |
1758 | } | |
1759 | } | |
177c0ea7 | 1760 | |
a168702a GM |
1761 | |
1762 | /* Turn off appearances of face FACE_ID on tty frame F. */ | |
1763 | ||
1764 | static void | |
1765 | turn_off_face (f, face_id) | |
1766 | struct frame *f; | |
1767 | int face_id; | |
1768 | { | |
1769 | struct face *face = FACE_FROM_ID (f, face_id); | |
28d7d09f | 1770 | struct tty_display_info *tty = FRAME_TTY (f); |
a168702a GM |
1771 | |
1772 | xassert (face != NULL); | |
1773 | ||
fca177d4 | 1774 | if (tty->TS_exit_attribute_mode) |
a168702a GM |
1775 | { |
1776 | /* Capability "me" will turn off appearance modes double-bright, | |
1777 | half-bright, reverse-video, standout, underline. It may or | |
1778 | may not turn off alt-char-mode. */ | |
1779 | if (face->tty_bold_p | |
1780 | || face->tty_dim_p | |
1781 | || face->tty_reverse_p | |
1782 | || face->tty_alt_charset_p | |
1783 | || face->tty_blinking_p | |
1784 | || face->tty_underline_p) | |
65aa5e85 | 1785 | { |
fca177d4 KL |
1786 | OUTPUT1_IF (tty, tty->TS_exit_attribute_mode); |
1787 | if (strcmp (tty->TS_exit_attribute_mode, tty->TS_end_standout_mode) == 0) | |
1788 | tty->standout_mode = 0; | |
65aa5e85 | 1789 | } |
a168702a GM |
1790 | |
1791 | if (face->tty_alt_charset_p) | |
fca177d4 | 1792 | OUTPUT_IF (tty, tty->TS_exit_alt_charset_mode); |
a168702a GM |
1793 | } |
1794 | else | |
1795 | { | |
1796 | /* If we don't have "me" we can only have those appearances | |
1797 | that have exit sequences defined. */ | |
1798 | if (face->tty_alt_charset_p) | |
fca177d4 | 1799 | OUTPUT_IF (tty, tty->TS_exit_alt_charset_mode); |
a168702a | 1800 | |
54800acb | 1801 | if (face->tty_underline_p) |
fca177d4 | 1802 | OUTPUT_IF (tty, tty->TS_exit_underline_mode); |
a168702a GM |
1803 | } |
1804 | ||
1805 | /* Switch back to default colors. */ | |
fca177d4 | 1806 | if (tty->TN_max_colors > 0 |
f9d2fdc4 EZ |
1807 | && ((face->foreground != FACE_TTY_DEFAULT_COLOR |
1808 | && face->foreground != FACE_TTY_DEFAULT_FG_COLOR) | |
1809 | || (face->background != FACE_TTY_DEFAULT_COLOR | |
1810 | && face->background != FACE_TTY_DEFAULT_BG_COLOR))) | |
fca177d4 | 1811 | OUTPUT1_IF (tty, tty->TS_orig_pair); |
a168702a | 1812 | } |
177c0ea7 JB |
1813 | |
1814 | ||
b63a55ac MB |
1815 | /* Return non-zero if the terminal on frame F supports all of the |
1816 | capabilities in CAPS simultaneously, with foreground and background | |
1817 | colors FG and BG. */ | |
1818 | ||
4a8130f2 | 1819 | int |
fca177d4 | 1820 | tty_capable_p (tty, caps, fg, bg) |
28d7d09f | 1821 | struct tty_display_info *tty; |
b63a55ac MB |
1822 | unsigned caps; |
1823 | unsigned long fg, bg; | |
1824 | { | |
fca177d4 KL |
1825 | #define TTY_CAPABLE_P_TRY(tty, cap, TS, NC_bit) \ |
1826 | if ((caps & (cap)) && (!(TS) || !MAY_USE_WITH_COLORS_P(tty, NC_bit))) \ | |
b63a55ac MB |
1827 | return 0; |
1828 | ||
fca177d4 KL |
1829 | TTY_CAPABLE_P_TRY (tty, TTY_CAP_INVERSE, tty->TS_standout_mode, NC_REVERSE); |
1830 | TTY_CAPABLE_P_TRY (tty, TTY_CAP_UNDERLINE, tty->TS_enter_underline_mode, NC_UNDERLINE); | |
1831 | TTY_CAPABLE_P_TRY (tty, TTY_CAP_BOLD, tty->TS_enter_bold_mode, NC_BOLD); | |
1832 | TTY_CAPABLE_P_TRY (tty, TTY_CAP_DIM, tty->TS_enter_dim_mode, NC_DIM); | |
1833 | TTY_CAPABLE_P_TRY (tty, TTY_CAP_BLINK, tty->TS_enter_blink_mode, NC_BLINK); | |
1834 | TTY_CAPABLE_P_TRY (tty, TTY_CAP_ALT_CHARSET, tty->TS_enter_alt_charset_mode, NC_ALT_CHARSET); | |
b63a55ac MB |
1835 | |
1836 | /* We can do it! */ | |
1837 | return 1; | |
1838 | } | |
1839 | ||
a168702a GM |
1840 | /* Return non-zero if the terminal is capable to display colors. */ |
1841 | ||
1842 | DEFUN ("tty-display-color-p", Ftty_display_color_p, Stty_display_color_p, | |
981e4297 | 1843 | 0, 1, 0, |
6ed8eeff KL |
1844 | doc: /* Return non-nil if the tty device TERMINAL can display colors. |
1845 | ||
1846 | TERMINAL can be a terminal id, a frame or nil (meaning the selected | |
1847 | frame's terminal). This function always returns nil if TERMINAL | |
1848 | is not on a tty device. */) | |
1849 | (terminal) | |
1850 | Lisp_Object terminal; | |
a168702a | 1851 | { |
717a00ef | 1852 | struct terminal *t = get_tty_terminal (terminal, 0); |
6ed8eeff | 1853 | if (!t) |
428a555e | 1854 | return Qnil; |
3224dac1 | 1855 | else |
6ed8eeff | 1856 | return t->display_info.tty->TN_max_colors > 0 ? Qt : Qnil; |
a168702a GM |
1857 | } |
1858 | ||
bfa62f96 EZ |
1859 | /* Return the number of supported colors. */ |
1860 | DEFUN ("tty-display-color-cells", Ftty_display_color_cells, | |
1861 | Stty_display_color_cells, 0, 1, 0, | |
6ed8eeff KL |
1862 | doc: /* Return the number of colors supported by the tty device TERMINAL. |
1863 | ||
1864 | TERMINAL can be a terminal id, a frame or nil (meaning the selected | |
717a00ef | 1865 | frame's terminal). This function always returns 0 if TERMINAL |
6ed8eeff KL |
1866 | is not on a tty device. */) |
1867 | (terminal) | |
1868 | Lisp_Object terminal; | |
bfa62f96 | 1869 | { |
717a00ef | 1870 | struct terminal *t = get_tty_terminal (terminal, 0); |
6ed8eeff | 1871 | if (!t) |
8c8d5f35 | 1872 | return make_number (0); |
3224dac1 | 1873 | else |
6ed8eeff | 1874 | return make_number (t->display_info.tty->TN_max_colors); |
bfa62f96 EZ |
1875 | } |
1876 | ||
ace28297 | 1877 | #ifndef WINDOWSNT |
a168702a | 1878 | |
ace28297 EZ |
1879 | /* Save or restore the default color-related capabilities of this |
1880 | terminal. */ | |
1881 | static void | |
28d7d09f | 1882 | tty_default_color_capabilities (struct tty_display_info *tty, int save) |
ace28297 EZ |
1883 | { |
1884 | static char | |
1885 | *default_orig_pair, *default_set_foreground, *default_set_background; | |
1886 | static int default_max_colors, default_max_pairs, default_no_color_video; | |
1887 | ||
1888 | if (save) | |
1889 | { | |
1890 | if (default_orig_pair) | |
1891 | xfree (default_orig_pair); | |
fca177d4 | 1892 | default_orig_pair = tty->TS_orig_pair ? xstrdup (tty->TS_orig_pair) : NULL; |
ace28297 EZ |
1893 | |
1894 | if (default_set_foreground) | |
1895 | xfree (default_set_foreground); | |
fca177d4 | 1896 | default_set_foreground = tty->TS_set_foreground ? xstrdup (tty->TS_set_foreground) |
ace28297 EZ |
1897 | : NULL; |
1898 | ||
1899 | if (default_set_background) | |
1900 | xfree (default_set_background); | |
fca177d4 | 1901 | default_set_background = tty->TS_set_background ? xstrdup (tty->TS_set_background) |
ace28297 EZ |
1902 | : NULL; |
1903 | ||
fca177d4 KL |
1904 | default_max_colors = tty->TN_max_colors; |
1905 | default_max_pairs = tty->TN_max_pairs; | |
1906 | default_no_color_video = tty->TN_no_color_video; | |
ace28297 EZ |
1907 | } |
1908 | else | |
1909 | { | |
fca177d4 KL |
1910 | tty->TS_orig_pair = default_orig_pair; |
1911 | tty->TS_set_foreground = default_set_foreground; | |
1912 | tty->TS_set_background = default_set_background; | |
1913 | tty->TN_max_colors = default_max_colors; | |
1914 | tty->TN_max_pairs = default_max_pairs; | |
1915 | tty->TN_no_color_video = default_no_color_video; | |
ace28297 EZ |
1916 | } |
1917 | } | |
1918 | ||
1919 | /* Setup one of the standard tty color schemes according to MODE. | |
1920 | MODE's value is generally the number of colors which we want to | |
1921 | support; zero means set up for the default capabilities, the ones | |
a4c6993d | 1922 | we saw at init_tty time; -1 means turn off color support. */ |
ed8dad6b | 1923 | static void |
28d7d09f | 1924 | tty_setup_colors (struct tty_display_info *tty, int mode) |
ace28297 | 1925 | { |
40409f05 EZ |
1926 | /* Canonicalize all negative values of MODE. */ |
1927 | if (mode < -1) | |
1928 | mode = -1; | |
1929 | ||
ace28297 EZ |
1930 | switch (mode) |
1931 | { | |
1932 | case -1: /* no colors at all */ | |
fca177d4 KL |
1933 | tty->TN_max_colors = 0; |
1934 | tty->TN_max_pairs = 0; | |
1935 | tty->TN_no_color_video = 0; | |
1936 | tty->TS_set_foreground = tty->TS_set_background = tty->TS_orig_pair = NULL; | |
ace28297 EZ |
1937 | break; |
1938 | case 0: /* default colors, if any */ | |
1939 | default: | |
fca177d4 | 1940 | tty_default_color_capabilities (tty, 0); |
ace28297 EZ |
1941 | break; |
1942 | case 8: /* 8 standard ANSI colors */ | |
fca177d4 | 1943 | tty->TS_orig_pair = "\033[0m"; |
ace28297 | 1944 | #ifdef TERMINFO |
fca177d4 KL |
1945 | tty->TS_set_foreground = "\033[3%p1%dm"; |
1946 | tty->TS_set_background = "\033[4%p1%dm"; | |
ace28297 | 1947 | #else |
fca177d4 KL |
1948 | tty->TS_set_foreground = "\033[3%dm"; |
1949 | tty->TS_set_background = "\033[4%dm"; | |
ace28297 | 1950 | #endif |
fca177d4 KL |
1951 | tty->TN_max_colors = 8; |
1952 | tty->TN_max_pairs = 64; | |
1953 | tty->TN_no_color_video = 0; | |
ace28297 EZ |
1954 | break; |
1955 | } | |
1956 | } | |
1957 | ||
1958 | void | |
1959 | set_tty_color_mode (f, val) | |
1960 | struct frame *f; | |
1961 | Lisp_Object val; | |
1962 | { | |
dfc7a077 | 1963 | Lisp_Object color_mode_spec, current_mode_spec; |
ace28297 EZ |
1964 | Lisp_Object color_mode, current_mode; |
1965 | int mode, old_mode; | |
1966 | extern Lisp_Object Qtty_color_mode; | |
1967 | Lisp_Object tty_color_mode_alist; | |
1968 | ||
1969 | tty_color_mode_alist = Fintern_soft (build_string ("tty-color-mode-alist"), | |
1970 | Qnil); | |
1971 | ||
9ac61a89 | 1972 | if (INTEGERP (val)) |
ace28297 EZ |
1973 | color_mode = val; |
1974 | else | |
1975 | { | |
1976 | if (NILP (tty_color_mode_alist)) | |
1977 | color_mode_spec = Qnil; | |
1978 | else | |
1979 | color_mode_spec = Fassq (val, XSYMBOL (tty_color_mode_alist)->value); | |
ace28297 EZ |
1980 | |
1981 | if (CONSP (color_mode_spec)) | |
1982 | color_mode = XCDR (color_mode_spec); | |
1983 | else | |
1984 | color_mode = Qnil; | |
1985 | } | |
545d91d5 RS |
1986 | |
1987 | current_mode_spec = assq_no_quit (Qtty_color_mode, f->param_alist); | |
1988 | ||
ace28297 EZ |
1989 | if (CONSP (current_mode_spec)) |
1990 | current_mode = XCDR (current_mode_spec); | |
1991 | else | |
1992 | current_mode = Qnil; | |
9ac61a89 | 1993 | if (INTEGERP (color_mode)) |
ace28297 EZ |
1994 | mode = XINT (color_mode); |
1995 | else | |
1996 | mode = 0; /* meaning default */ | |
9ac61a89 | 1997 | if (INTEGERP (current_mode)) |
ace28297 EZ |
1998 | old_mode = XINT (current_mode); |
1999 | else | |
2000 | old_mode = 0; | |
2001 | ||
2002 | if (mode != old_mode) | |
2003 | { | |
fca177d4 | 2004 | tty_setup_colors (FRAME_TTY (f), mode); |
ace28297 EZ |
2005 | /* This recomputes all the faces given the new color |
2006 | definitions. */ | |
2007 | call0 (intern ("tty-set-up-initial-frame-faces")); | |
2008 | redraw_frame (f); | |
2009 | } | |
2010 | } | |
2011 | ||
2012 | #endif /* !WINDOWSNT */ | |
a168702a GM |
2013 | |
2014 | \f | |
28d440ab | 2015 | |
6ed8eeff | 2016 | /* Return the tty display object specified by TERMINAL. */ |
b6660415 | 2017 | |
6ed8eeff | 2018 | struct terminal * |
717a00ef | 2019 | get_tty_terminal (Lisp_Object terminal, int throw) |
b6660415 | 2020 | { |
717a00ef | 2021 | struct terminal *t = get_terminal (terminal, throw); |
62af879c | 2022 | |
6ed8eeff | 2023 | if (t && t->type == output_initial) |
717a00ef | 2024 | return NULL; |
d7e4838f | 2025 | |
6ed8eeff | 2026 | if (t && t->type != output_termcap) |
717a00ef KL |
2027 | { |
2028 | if (throw) | |
2029 | error ("Device %d is not a termcap terminal device", t->id); | |
2030 | else | |
2031 | return NULL; | |
2032 | } | |
b6660415 | 2033 | |
6ed8eeff | 2034 | return t; |
b6660415 KL |
2035 | } |
2036 | ||
ab797f65 KL |
2037 | /* Return an active termcap device that uses the tty device with the |
2038 | given name. | |
b6660415 | 2039 | |
7e59217d | 2040 | This function ignores suspended devices. |
da8e1115 KL |
2041 | |
2042 | Returns NULL if the named terminal device is not opened. */ | |
2043 | ||
6ed8eeff | 2044 | struct terminal * |
7e59217d | 2045 | get_named_tty (name) |
28d440ab KL |
2046 | char *name; |
2047 | { | |
6ed8eeff KL |
2048 | struct terminal *t; |
2049 | ||
ab797f65 KL |
2050 | if (!name) |
2051 | abort (); | |
2052 | ||
2053 | for (t = terminal_list; t; t = t->next_terminal) | |
2054 | { | |
2055 | if (t->type == output_termcap | |
2056 | && !strcmp (t->display_info.tty->name, name) | |
2057 | && TERMINAL_ACTIVE_P (t)) | |
2058 | return t; | |
2059 | } | |
28d440ab KL |
2060 | |
2061 | return 0; | |
2062 | } | |
2063 | ||
2064 | \f | |
6ed8eeff KL |
2065 | DEFUN ("tty-type", Ftty_type, Stty_type, 0, 1, 0, |
2066 | doc: /* Return the type of the tty device that TERMINAL uses. | |
ab797f65 | 2067 | Returns nil if TERMINAL is not on a tty device. |
a3fbb897 | 2068 | |
6ed8eeff KL |
2069 | TERMINAL can be a terminal id, a frame or nil (meaning the selected |
2070 | frame's terminal). */) | |
2071 | (terminal) | |
2072 | Lisp_Object terminal; | |
b6660415 | 2073 | { |
6ed8eeff | 2074 | struct terminal *t = get_terminal (terminal, 1); |
819b8f00 | 2075 | |
6ed8eeff | 2076 | if (t->type != output_termcap) |
ab797f65 KL |
2077 | return Qnil; |
2078 | ||
6ed8eeff KL |
2079 | if (t->display_info.tty->type) |
2080 | return build_string (t->display_info.tty->type); | |
819b8f00 KL |
2081 | else |
2082 | return Qnil; | |
2083 | } | |
2084 | ||
6ed8eeff KL |
2085 | DEFUN ("controlling-tty-p", Fcontrolling_tty_p, Scontrolling_tty_p, 0, 1, 0, |
2086 | doc: /* Return non-nil if TERMINAL is on the controlling tty of the Emacs process. | |
a3fbb897 | 2087 | |
6ed8eeff KL |
2088 | TERMINAL can be a terminal id, a frame or nil (meaning the selected |
2089 | frame's terminal). This function always returns nil if TERMINAL | |
2090 | is not on a tty device. */) | |
2091 | (terminal) | |
2092 | Lisp_Object terminal; | |
4a933ef8 | 2093 | { |
6ed8eeff | 2094 | struct terminal *t = get_terminal (terminal, 1); |
4a933ef8 | 2095 | |
59b3194c | 2096 | if (t->type != output_termcap || strcmp (t->display_info.tty->name, "/dev/tty")) |
4a933ef8 KL |
2097 | return Qnil; |
2098 | else | |
2099 | return Qt; | |
2100 | } | |
2101 | ||
a3fbb897 | 2102 | DEFUN ("tty-no-underline", Ftty_no_underline, Stty_no_underline, 0, 1, 0, |
6ed8eeff | 2103 | doc: /* Declare that the tty used by TERMINAL does not handle underlining. |
a3fbb897 KL |
2104 | This is used to override the terminfo data, for certain terminals that |
2105 | do not really do underlining, but say that they do. This function has | |
6ed8eeff | 2106 | no effect if used on a non-tty terminal. |
a3fbb897 | 2107 | |
6ed8eeff KL |
2108 | TERMINAL can be a terminal id, a frame or nil (meaning the selected |
2109 | frame's terminal). This function always returns nil if TERMINAL | |
2110 | is not on a tty device. */) | |
2111 | (terminal) | |
2112 | Lisp_Object terminal; | |
a3fbb897 | 2113 | { |
6ed8eeff | 2114 | struct terminal *t = get_terminal (terminal, 1); |
a3fbb897 | 2115 | |
6ed8eeff KL |
2116 | if (t->type == output_termcap) |
2117 | t->display_info.tty->TS_enter_underline_mode = 0; | |
a3fbb897 KL |
2118 | return Qnil; |
2119 | } | |
2120 | ||
ed8dad6b KL |
2121 | \f |
2122 | ||
2123 | DEFUN ("suspend-tty", Fsuspend_tty, Ssuspend_tty, 0, 1, 0, | |
2124 | doc: /* Suspend the terminal device TTY. | |
2125 | ||
2126 | The device is restored to its default state, and Emacs ceases all | |
2127 | access to the tty device. Frames that use the device are not deleted, | |
2128 | but input is not read from them and if they change, their display is | |
2129 | not updated. | |
2130 | ||
2131 | TTY may be a terminal id, a frame, or nil for the terminal device of | |
2132 | the currently selected frame. | |
2133 | ||
2134 | This function runs `suspend-tty-functions' after suspending the | |
2135 | device. The functions are run with one arg, the id of the suspended | |
2136 | terminal device. | |
2137 | ||
2138 | `suspend-tty' does nothing if it is called on a device that is already | |
2139 | suspended. | |
2140 | ||
2141 | A suspended tty may be resumed by calling `resume-tty' on it. */) | |
2142 | (tty) | |
2143 | Lisp_Object tty; | |
2144 | { | |
717a00ef | 2145 | struct terminal *t = get_tty_terminal (tty, 1); |
ed8dad6b KL |
2146 | FILE *f; |
2147 | ||
6ed8eeff | 2148 | if (!t) |
ed8dad6b KL |
2149 | error ("Unknown tty device"); |
2150 | ||
6ed8eeff | 2151 | f = t->display_info.tty->input; |
ed8dad6b KL |
2152 | |
2153 | if (f) | |
2154 | { | |
6ed8eeff | 2155 | reset_sys_modes (t->display_info.tty); |
ed8dad6b KL |
2156 | |
2157 | delete_keyboard_wait_descriptor (fileno (f)); | |
2158 | ||
2159 | fclose (f); | |
6ed8eeff KL |
2160 | if (f != t->display_info.tty->output) |
2161 | fclose (t->display_info.tty->output); | |
ed8dad6b | 2162 | |
6ed8eeff KL |
2163 | t->display_info.tty->input = 0; |
2164 | t->display_info.tty->output = 0; | |
ed8dad6b | 2165 | |
6ed8eeff KL |
2166 | if (FRAMEP (t->display_info.tty->top_frame)) |
2167 | FRAME_SET_VISIBLE (XFRAME (t->display_info.tty->top_frame), 0); | |
ed8dad6b KL |
2168 | |
2169 | /* Run `suspend-tty-functions'. */ | |
2170 | if (!NILP (Vrun_hooks)) | |
2171 | { | |
2172 | Lisp_Object args[2]; | |
2173 | args[0] = intern ("suspend-tty-functions"); | |
6ed8eeff | 2174 | args[1] = make_number (t->id); |
ed8dad6b KL |
2175 | Frun_hook_with_args (2, args); |
2176 | } | |
2177 | } | |
2178 | ||
4a665758 KL |
2179 | /* Clear display hooks to prevent further output. */ |
2180 | clear_tty_hooks (t); | |
2181 | ||
ed8dad6b KL |
2182 | return Qnil; |
2183 | } | |
2184 | ||
2185 | DEFUN ("resume-tty", Fresume_tty, Sresume_tty, 0, 1, 0, | |
2186 | doc: /* Resume the previously suspended terminal device TTY. | |
2187 | The terminal is opened and reinitialized. Frames that are on the | |
6ed8eeff | 2188 | suspended terminal are revived. |
ed8dad6b | 2189 | |
6ed8eeff KL |
2190 | It is an error to resume a terminal while another terminal is active |
2191 | on the same device. | |
ed8dad6b | 2192 | |
6ed8eeff KL |
2193 | This function runs `resume-tty-functions' after resuming the terminal. |
2194 | The functions are run with one arg, the id of the resumed terminal | |
ed8dad6b KL |
2195 | device. |
2196 | ||
2197 | `resume-tty' does nothing if it is called on a device that is not | |
2198 | suspended. | |
2199 | ||
6ed8eeff KL |
2200 | TTY may be a terminal id, a frame, or nil for the terminal device of |
2201 | the currently selected frame. */) | |
ed8dad6b KL |
2202 | (tty) |
2203 | Lisp_Object tty; | |
2204 | { | |
717a00ef | 2205 | struct terminal *t = get_tty_terminal (tty, 1); |
ed8dad6b KL |
2206 | int fd; |
2207 | ||
6ed8eeff | 2208 | if (!t) |
ed8dad6b KL |
2209 | error ("Unknown tty device"); |
2210 | ||
6ed8eeff | 2211 | if (!t->display_info.tty->input) |
ed8dad6b | 2212 | { |
6ed8eeff | 2213 | if (get_named_tty (t->display_info.tty->name)) |
ed8dad6b KL |
2214 | error ("Cannot resume display while another display is active on the same device"); |
2215 | ||
6ed8eeff | 2216 | fd = emacs_open (t->display_info.tty->name, O_RDWR | O_NOCTTY, 0); |
ed8dad6b | 2217 | |
59b3194c KL |
2218 | if (fd == -1) |
2219 | error ("Can not reopen tty device %s: %s", t->display_info.tty->name, strerror (errno)); | |
ed8dad6b | 2220 | |
59b3194c KL |
2221 | if (strcmp (t->display_info.tty->name, "/dev/tty")) |
2222 | dissociate_if_controlling_tty (fd); | |
ed8dad6b | 2223 | |
6ed8eeff KL |
2224 | t->display_info.tty->output = fdopen (fd, "w+"); |
2225 | t->display_info.tty->input = t->display_info.tty->output; | |
ed8dad6b KL |
2226 | |
2227 | add_keyboard_wait_descriptor (fd); | |
2228 | ||
6ed8eeff KL |
2229 | if (FRAMEP (t->display_info.tty->top_frame)) |
2230 | FRAME_SET_VISIBLE (XFRAME (t->display_info.tty->top_frame), 1); | |
ed8dad6b | 2231 | |
6ed8eeff | 2232 | init_sys_modes (t->display_info.tty); |
ed8dad6b KL |
2233 | |
2234 | /* Run `suspend-tty-functions'. */ | |
2235 | if (!NILP (Vrun_hooks)) | |
2236 | { | |
2237 | Lisp_Object args[2]; | |
2238 | args[0] = intern ("resume-tty-functions"); | |
6ed8eeff | 2239 | args[1] = make_number (t->id); |
ed8dad6b KL |
2240 | Frun_hook_with_args (2, args); |
2241 | } | |
2242 | } | |
2243 | ||
4a665758 KL |
2244 | set_tty_hooks (t); |
2245 | ||
ed8dad6b KL |
2246 | return Qnil; |
2247 | } | |
a3fbb897 | 2248 | |
819b8f00 | 2249 | \f |
a168702a GM |
2250 | /*********************************************************************** |
2251 | Initialization | |
2252 | ***********************************************************************/ | |
2253 | ||
ed8dad6b KL |
2254 | /* Initialize the tty-dependent part of frame F. The frame must |
2255 | already have its device initialized. */ | |
3224dac1 | 2256 | |
ed8dad6b KL |
2257 | void |
2258 | create_tty_output (struct frame *f) | |
28d440ab | 2259 | { |
ed8dad6b KL |
2260 | struct tty_output *t; |
2261 | ||
2262 | if (! FRAME_TERMCAP_P (f)) | |
428a555e KL |
2263 | abort (); |
2264 | ||
ed8dad6b KL |
2265 | t = xmalloc (sizeof (struct tty_output)); |
2266 | bzero (t, sizeof (struct tty_output)); | |
b6660415 | 2267 | |
6ed8eeff | 2268 | t->display_info = FRAME_TERMINAL (f)->display_info.tty; |
bedb9c0e | 2269 | |
ed8dad6b | 2270 | f->output_data.tty = t; |
3224dac1 KL |
2271 | } |
2272 | ||
ed8dad6b | 2273 | /* Delete the tty-dependent part of frame F. */ |
da8e1115 | 2274 | |
ed8dad6b KL |
2275 | static void |
2276 | delete_tty_output (struct frame *f) | |
3224dac1 | 2277 | { |
ed8dad6b | 2278 | if (! FRAME_TERMCAP_P (f)) |
3224dac1 KL |
2279 | abort (); |
2280 | ||
ed8dad6b | 2281 | xfree (f->output_data.tty); |
28d440ab KL |
2282 | } |
2283 | ||
ed8dad6b KL |
2284 | \f |
2285 | ||
4a665758 KL |
2286 | static void |
2287 | clear_tty_hooks (struct terminal *terminal) | |
2288 | { | |
2289 | terminal->rif = 0; | |
2290 | terminal->cursor_to_hook = 0; | |
2291 | terminal->raw_cursor_to_hook = 0; | |
2292 | terminal->clear_to_end_hook = 0; | |
2293 | terminal->clear_frame_hook = 0; | |
2294 | terminal->clear_end_of_line_hook = 0; | |
2295 | terminal->ins_del_lines_hook = 0; | |
2296 | terminal->insert_glyphs_hook = 0; | |
2297 | terminal->write_glyphs_hook = 0; | |
2298 | terminal->delete_glyphs_hook = 0; | |
2299 | terminal->ring_bell_hook = 0; | |
2300 | terminal->reset_terminal_modes_hook = 0; | |
2301 | terminal->set_terminal_modes_hook = 0; | |
2302 | terminal->update_begin_hook = 0; | |
2303 | terminal->update_end_hook = 0; | |
2304 | terminal->set_terminal_window_hook = 0; | |
2305 | terminal->mouse_position_hook = 0; | |
2306 | terminal->frame_rehighlight_hook = 0; | |
2307 | terminal->frame_raise_lower_hook = 0; | |
974b73e8 | 2308 | terminal->fullscreen_hook = 0; |
4a665758 KL |
2309 | terminal->set_vertical_scroll_bar_hook = 0; |
2310 | terminal->condemn_scroll_bars_hook = 0; | |
2311 | terminal->redeem_scroll_bar_hook = 0; | |
2312 | terminal->judge_scroll_bars_hook = 0; | |
2313 | terminal->read_socket_hook = 0; | |
2314 | terminal->frame_up_to_date_hook = 0; | |
2315 | ||
2316 | /* Leave these two set, or suspended frames are not deleted | |
2317 | correctly. */ | |
2318 | terminal->delete_frame_hook = &delete_tty_output; | |
2319 | terminal->delete_terminal_hook = &delete_tty; | |
2320 | } | |
2321 | ||
2322 | static void | |
2323 | set_tty_hooks (struct terminal *terminal) | |
2324 | { | |
2325 | terminal->rif = 0; /* ttys don't support window-based redisplay. */ | |
2326 | ||
2327 | terminal->cursor_to_hook = &tty_cursor_to; | |
2328 | terminal->raw_cursor_to_hook = &tty_raw_cursor_to; | |
2329 | ||
2330 | terminal->clear_to_end_hook = &tty_clear_to_end; | |
2331 | terminal->clear_frame_hook = &tty_clear_frame; | |
2332 | terminal->clear_end_of_line_hook = &tty_clear_end_of_line; | |
2333 | ||
2334 | terminal->ins_del_lines_hook = &tty_ins_del_lines; | |
2335 | ||
2336 | terminal->insert_glyphs_hook = &tty_insert_glyphs; | |
2337 | terminal->write_glyphs_hook = &tty_write_glyphs; | |
2338 | terminal->delete_glyphs_hook = &tty_delete_glyphs; | |
2339 | ||
2340 | terminal->ring_bell_hook = &tty_ring_bell; | |
2341 | ||
2342 | terminal->reset_terminal_modes_hook = &tty_reset_terminal_modes; | |
2343 | terminal->set_terminal_modes_hook = &tty_set_terminal_modes; | |
2344 | terminal->update_begin_hook = 0; /* Not needed. */ | |
2345 | terminal->update_end_hook = &tty_update_end; | |
2346 | terminal->set_terminal_window_hook = &tty_set_terminal_window; | |
2347 | ||
2348 | terminal->mouse_position_hook = 0; /* Not needed. */ | |
2349 | terminal->frame_rehighlight_hook = 0; /* Not needed. */ | |
2350 | terminal->frame_raise_lower_hook = 0; /* Not needed. */ | |
2351 | ||
2352 | terminal->set_vertical_scroll_bar_hook = 0; /* Not needed. */ | |
2353 | terminal->condemn_scroll_bars_hook = 0; /* Not needed. */ | |
2354 | terminal->redeem_scroll_bar_hook = 0; /* Not needed. */ | |
2355 | terminal->judge_scroll_bars_hook = 0; /* Not needed. */ | |
2356 | ||
2357 | terminal->read_socket_hook = &tty_read_avail_input; /* keyboard.c */ | |
2358 | terminal->frame_up_to_date_hook = 0; /* Not needed. */ | |
2359 | ||
2360 | terminal->delete_frame_hook = &delete_tty_output; | |
2361 | terminal->delete_terminal_hook = &delete_tty; | |
2362 | } | |
2363 | ||
03a1d6bd | 2364 | /* Drop the controlling terminal if fd is the same device. */ |
ed8dad6b | 2365 | static void |
03a1d6bd KL |
2366 | dissociate_if_controlling_tty (int fd) |
2367 | { | |
03a1d6bd | 2368 | int pgid; |
8516815b | 2369 | EMACS_GET_TTY_PGRP (fd, &pgid); /* If tcgetpgrp succeeds, fd is the ctty. */ |
03a1d6bd KL |
2370 | if (pgid != -1) |
2371 | { | |
8516815b | 2372 | #if defined (USG) && !defined (BSD_PGRPS) |
03a1d6bd KL |
2373 | setpgrp (); |
2374 | no_controlling_tty = 1; | |
03a1d6bd KL |
2375 | #else |
2376 | #ifdef TIOCNOTTY /* Try BSD ioctls. */ | |
8516815b KL |
2377 | sigblock (sigmask (SIGTTOU)); |
2378 | fd = emacs_open ("/dev/tty", O_RDWR, 0); | |
2379 | if (fd != -1 && ioctl (fd, TIOCNOTTY, 0) != -1) | |
2380 | { | |
2381 | no_controlling_tty = 1; | |
2382 | } | |
2383 | if (fd != -1) | |
2384 | emacs_close (fd); | |
2385 | sigunblock (sigmask (SIGTTOU)); | |
03a1d6bd | 2386 | #else |
8516815b KL |
2387 | /* Unknown system. */ |
2388 | croak (); | |
03a1d6bd KL |
2389 | #endif /* ! TIOCNOTTY */ |
2390 | #endif /* ! USG */ | |
71a96040 | 2391 | } |
03a1d6bd KL |
2392 | } |
2393 | ||
520c4dfd KL |
2394 | static void maybe_fatal(); |
2395 | ||
3224dac1 KL |
2396 | /* Create a termcap display on the tty device with the given name and |
2397 | type. | |
2398 | ||
ab797f65 | 2399 | If NAME is NULL, then use the controlling tty, i.e., "/dev/tty". |
3224dac1 KL |
2400 | Otherwise NAME should be a path to the tty device file, |
2401 | e.g. "/dev/pts/7". | |
28d440ab | 2402 | |
3224dac1 KL |
2403 | TERMINAL_TYPE is the termcap type of the device, e.g. "vt100". |
2404 | ||
2405 | If MUST_SUCCEED is true, then all errors are fatal. */ | |
da8e1115 | 2406 | |
6ed8eeff | 2407 | struct terminal * |
a4c6993d | 2408 | init_tty (char *name, char *terminal_type, int must_succeed) |
08a24c47 | 2409 | { |
59b3194c | 2410 | char *area = NULL; |
08a24c47 | 2411 | char **address = &area; |
3a06a6d9 | 2412 | char *buffer = NULL; |
5846981b | 2413 | int buffer_size = 4096; |
59b3194c | 2414 | register char *p = NULL; |
08a24c47 | 2415 | int status; |
59b3194c KL |
2416 | struct tty_display_info *tty = NULL; |
2417 | struct terminal *terminal = NULL; | |
2418 | int ctty = 0; /* 1 if asked to open controlling tty. */ | |
28d440ab | 2419 | |
3224dac1 KL |
2420 | if (!terminal_type) |
2421 | maybe_fatal (must_succeed, 0, 0, | |
2422 | "Unknown terminal type", | |
2423 | "Unknown terminal type"); | |
b6660415 | 2424 | |
ab797f65 KL |
2425 | if (name == NULL) |
2426 | name = "/dev/tty"; | |
2427 | if (!strcmp (name, "/dev/tty")) | |
2428 | ctty = 1; | |
2429 | ||
6ed8eeff KL |
2430 | /* If we already have a terminal on the given device, use that. If |
2431 | all such terminals are suspended, create a new one instead. */ | |
a4c6993d | 2432 | /* XXX Perhaps this should be made explicit by having init_tty |
6ed8eeff | 2433 | always create a new terminal and separating terminal and frame |
b6660415 | 2434 | creation on Lisp level. */ |
6ed8eeff KL |
2435 | terminal = get_named_tty (name); |
2436 | if (terminal) | |
2437 | return terminal; | |
428a555e | 2438 | |
6ed8eeff | 2439 | terminal = create_terminal (); |
3224dac1 KL |
2440 | tty = (struct tty_display_info *) xmalloc (sizeof (struct tty_display_info)); |
2441 | bzero (tty, sizeof (struct tty_display_info)); | |
2442 | tty->next = tty_list; | |
2443 | tty_list = tty; | |
428a555e | 2444 | |
6ed8eeff KL |
2445 | terminal->type = output_termcap; |
2446 | terminal->display_info.tty = tty; | |
2447 | tty->terminal = terminal; | |
28d440ab | 2448 | |
7b00d185 KL |
2449 | tty->Wcm = (struct cm *) xmalloc (sizeof (struct cm)); |
2450 | Wcm_clear (tty); | |
daf01701 | 2451 | |
4a665758 | 2452 | set_tty_hooks (terminal); |
428a555e | 2453 | |
59b3194c KL |
2454 | { |
2455 | int fd; | |
2456 | FILE *file; | |
0c72d684 KL |
2457 | |
2458 | #ifdef O_IGNORE_CTTY | |
59b3194c | 2459 | if (!ctty) |
0c72d684 KL |
2460 | /* Open the terminal device. Don't recognize it as our |
2461 | controlling terminal, and don't make it the controlling tty | |
2462 | if we don't have one at the moment. */ | |
2463 | fd = emacs_open (name, O_RDWR | O_IGNORE_CTTY | O_NOCTTY, 0); | |
59b3194c | 2464 | else |
0c72d684 | 2465 | #else |
2666355c | 2466 | /* Alas, O_IGNORE_CTTY is a GNU extension that seems to be only |
59b3194c KL |
2467 | defined on Hurd. On other systems, we need to explicitly |
2468 | dissociate ourselves from the controlling tty when we want to | |
2469 | open a frame on the same terminal. */ | |
0c72d684 | 2470 | fd = emacs_open (name, O_RDWR | O_NOCTTY, 0); |
0c72d684 KL |
2471 | #endif /* O_IGNORE_CTTY */ |
2472 | ||
59b3194c KL |
2473 | if (fd < 0) |
2474 | maybe_fatal (must_succeed, buffer, terminal, | |
2475 | "Could not open file: %s", | |
2476 | "Could not open file: %s", | |
2477 | name); | |
2478 | if (!isatty (fd)) | |
2479 | { | |
2480 | close (fd); | |
2481 | maybe_fatal (must_succeed, buffer, terminal, | |
2482 | "Not a tty device: %s", | |
2483 | "Not a tty device: %s", | |
2484 | name); | |
2485 | } | |
0c72d684 | 2486 | |
59b3194c KL |
2487 | #ifndef O_IGNORE_CTTY |
2488 | if (!ctty) | |
03a1d6bd | 2489 | dissociate_if_controlling_tty (fd); |
59b3194c KL |
2490 | #endif |
2491 | ||
2492 | file = fdopen (fd, "w+"); | |
2493 | tty->name = xstrdup (name); | |
2494 | terminal->name = xstrdup (name); | |
2495 | tty->input = file; | |
2496 | tty->output = file; | |
2497 | } | |
28d440ab | 2498 | |
28d7d09f | 2499 | tty->type = xstrdup (terminal_type); |
28d440ab | 2500 | |
819b8f00 | 2501 | add_keyboard_wait_descriptor (fileno (tty->input)); |
daf01701 | 2502 | |
af645abf KH |
2503 | encode_terminal_bufsize = 0; |
2504 | ||
cb28b9c2 | 2505 | #ifdef WINDOWSNT |
29f27c39 | 2506 | initialize_w32_display (); |
cb28b9c2 | 2507 | |
fca177d4 | 2508 | Wcm_clear (tty); |
cb28b9c2 | 2509 | |
a678d9ff | 2510 | area = (char *) xmalloc (2044); |
cb28b9c2 | 2511 | |
428a555e KL |
2512 | FrameRows (tty) = FRAME_LINES (f); /* XXX */ |
2513 | FrameCols (tty) = FRAME_COLS (f); /* XXX */ | |
2514 | tty->specified_window = FRAME_LINES (f); /* XXX */ | |
cb28b9c2 | 2515 | |
6ed8eeff | 2516 | tty->terminal->delete_in_insert_mode = 1; |
cb28b9c2 | 2517 | |
daf01701 | 2518 | UseTabs (tty) = 0; |
6ed8eeff | 2519 | terminal->scroll_region_ok = 0; |
cb28b9c2 | 2520 | |
7e59217d | 2521 | /* Seems to insert lines when it's not supposed to, messing up the |
6ed8eeff | 2522 | display. In doing a trace, it didn't seem to be called much, so I |
7e59217d | 2523 | don't think we're losing anything by turning it off. */ |
6ed8eeff KL |
2524 | terminal->line_ins_del_ok = 0; |
2525 | terminal->char_ins_del_ok = 1; | |
cb28b9c2 RS |
2526 | |
2527 | baud_rate = 19200; | |
2528 | ||
428a555e KL |
2529 | FRAME_CAN_HAVE_SCROLL_BARS (f) = 0; /* XXX */ |
2530 | FRAME_VERTICAL_SCROLL_BAR_TYPE (f) = vertical_scroll_bar_none; /* XXX */ | |
acfcd5cd | 2531 | TN_max_colors = 16; /* Required to be non-zero for tty-display-color-p */ |
cb28b9c2 | 2532 | |
6ed8eeff | 2533 | return terminal; |
eccec691 | 2534 | #else /* not WINDOWSNT */ |
cb28b9c2 | 2535 | |
6548cf00 | 2536 | Wcm_clear (tty); |
08a24c47 | 2537 | |
3a06a6d9 | 2538 | buffer = (char *) xmalloc (buffer_size); |
03a1d6bd KL |
2539 | |
2540 | /* On some systems, tgetent tries to access the controlling | |
2541 | terminal. */ | |
2542 | sigblock (sigmask (SIGTTOU)); | |
08a24c47 | 2543 | status = tgetent (buffer, terminal_type); |
03a1d6bd KL |
2544 | sigunblock (sigmask (SIGTTOU)); |
2545 | ||
08a24c47 | 2546 | if (status < 0) |
b0347178 KH |
2547 | { |
2548 | #ifdef TERMINFO | |
6ed8eeff | 2549 | maybe_fatal (must_succeed, buffer, terminal, |
3224dac1 KL |
2550 | "Cannot open terminfo database file", |
2551 | "Cannot open terminfo database file"); | |
b0347178 | 2552 | #else |
6ed8eeff | 2553 | maybe_fatal (must_succeed, buffer, terminal, |
3224dac1 KL |
2554 | "Cannot open termcap database file", |
2555 | "Cannot open termcap database file"); | |
b0347178 KH |
2556 | #endif |
2557 | } | |
08a24c47 | 2558 | if (status == 0) |
b0347178 KH |
2559 | { |
2560 | #ifdef TERMINFO | |
6ed8eeff | 2561 | maybe_fatal (must_succeed, buffer, terminal, |
3224dac1 KL |
2562 | "Terminal type %s is not defined", |
2563 | "Terminal type %s is not defined.\n\ | |
0a125897 | 2564 | If that is not the actual type of terminal you have,\n\ |
b0347178 KH |
2565 | use the Bourne shell command `TERM=... export TERM' (C-shell:\n\ |
2566 | `setenv TERM ...') to specify the correct type. It may be necessary\n\ | |
e12c1054 | 2567 | to do `unset TERMINFO' (C-shell: `unsetenv TERMINFO') as well.", |
3224dac1 | 2568 | terminal_type); |
b0347178 | 2569 | #else |
6ed8eeff | 2570 | maybe_fatal (must_succeed, buffer, terminal, |
3224dac1 KL |
2571 | "Terminal type %s is not defined", |
2572 | "Terminal type %s is not defined.\n\ | |
0a125897 | 2573 | If that is not the actual type of terminal you have,\n\ |
c5a9c3e6 RS |
2574 | use the Bourne shell command `TERM=... export TERM' (C-shell:\n\ |
2575 | `setenv TERM ...') to specify the correct type. It may be necessary\n\ | |
e12c1054 | 2576 | to do `unset TERMCAP' (C-shell: `unsetenv TERMCAP') as well.", |
3224dac1 | 2577 | terminal_type); |
b0347178 KH |
2578 | #endif |
2579 | } | |
3a06a6d9 | 2580 | |
f730033e | 2581 | #ifndef TERMINFO |
3a06a6d9 | 2582 | if (strlen (buffer) >= buffer_size) |
08a24c47 | 2583 | abort (); |
f730033e | 2584 | buffer_size = strlen (buffer); |
3dd3a502 | 2585 | #endif |
f730033e | 2586 | area = (char *) xmalloc (buffer_size); |
08a24c47 | 2587 | |
fca177d4 KL |
2588 | tty->TS_ins_line = tgetstr ("al", address); |
2589 | tty->TS_ins_multi_lines = tgetstr ("AL", address); | |
2590 | tty->TS_bell = tgetstr ("bl", address); | |
6548cf00 | 2591 | BackTab (tty) = tgetstr ("bt", address); |
fca177d4 KL |
2592 | tty->TS_clr_to_bottom = tgetstr ("cd", address); |
2593 | tty->TS_clr_line = tgetstr ("ce", address); | |
2594 | tty->TS_clr_frame = tgetstr ("cl", address); | |
6548cf00 KL |
2595 | ColPosition (tty) = NULL; /* tgetstr ("ch", address); */ |
2596 | AbsPosition (tty) = tgetstr ("cm", address); | |
2597 | CR (tty) = tgetstr ("cr", address); | |
fca177d4 KL |
2598 | tty->TS_set_scroll_region = tgetstr ("cs", address); |
2599 | tty->TS_set_scroll_region_1 = tgetstr ("cS", address); | |
6548cf00 | 2600 | RowPosition (tty) = tgetstr ("cv", address); |
fca177d4 KL |
2601 | tty->TS_del_char = tgetstr ("dc", address); |
2602 | tty->TS_del_multi_chars = tgetstr ("DC", address); | |
2603 | tty->TS_del_line = tgetstr ("dl", address); | |
2604 | tty->TS_del_multi_lines = tgetstr ("DL", address); | |
2605 | tty->TS_delete_mode = tgetstr ("dm", address); | |
2606 | tty->TS_end_delete_mode = tgetstr ("ed", address); | |
2607 | tty->TS_end_insert_mode = tgetstr ("ei", address); | |
6548cf00 | 2608 | Home (tty) = tgetstr ("ho", address); |
fca177d4 KL |
2609 | tty->TS_ins_char = tgetstr ("ic", address); |
2610 | tty->TS_ins_multi_chars = tgetstr ("IC", address); | |
2611 | tty->TS_insert_mode = tgetstr ("im", address); | |
2612 | tty->TS_pad_inserted_char = tgetstr ("ip", address); | |
2613 | tty->TS_end_keypad_mode = tgetstr ("ke", address); | |
2614 | tty->TS_keypad_mode = tgetstr ("ks", address); | |
6548cf00 KL |
2615 | LastLine (tty) = tgetstr ("ll", address); |
2616 | Right (tty) = tgetstr ("nd", address); | |
2617 | Down (tty) = tgetstr ("do", address); | |
2618 | if (!Down (tty)) | |
2619 | Down (tty) = tgetstr ("nl", address); /* Obsolete name for "do" */ | |
08a24c47 JB |
2620 | #ifdef VMS |
2621 | /* VMS puts a carriage return before each linefeed, | |
2622 | so it is not safe to use linefeeds. */ | |
6548cf00 KL |
2623 | if (Down (tty) && Down (tty)[0] == '\n' && Down (tty)[1] == '\0') |
2624 | Down (tty) = 0; | |
08a24c47 JB |
2625 | #endif /* VMS */ |
2626 | if (tgetflag ("bs")) | |
6548cf00 | 2627 | Left (tty) = "\b"; /* can't possibly be longer! */ |
08a24c47 | 2628 | else /* (Actually, "bs" is obsolete...) */ |
6548cf00 KL |
2629 | Left (tty) = tgetstr ("le", address); |
2630 | if (!Left (tty)) | |
2631 | Left (tty) = tgetstr ("bc", address); /* Obsolete name for "le" */ | |
fca177d4 KL |
2632 | tty->TS_pad_char = tgetstr ("pc", address); |
2633 | tty->TS_repeat = tgetstr ("rp", address); | |
2634 | tty->TS_end_standout_mode = tgetstr ("se", address); | |
2635 | tty->TS_fwd_scroll = tgetstr ("sf", address); | |
2636 | tty->TS_standout_mode = tgetstr ("so", address); | |
2637 | tty->TS_rev_scroll = tgetstr ("sr", address); | |
6548cf00 | 2638 | tty->Wcm->cm_tab = tgetstr ("ta", address); |
fca177d4 KL |
2639 | tty->TS_end_termcap_modes = tgetstr ("te", address); |
2640 | tty->TS_termcap_modes = tgetstr ("ti", address); | |
6548cf00 | 2641 | Up (tty) = tgetstr ("up", address); |
fca177d4 KL |
2642 | tty->TS_visible_bell = tgetstr ("vb", address); |
2643 | tty->TS_cursor_normal = tgetstr ("ve", address); | |
2644 | tty->TS_cursor_visible = tgetstr ("vs", address); | |
2645 | tty->TS_cursor_invisible = tgetstr ("vi", address); | |
2646 | tty->TS_set_window = tgetstr ("wi", address); | |
2647 | ||
2648 | tty->TS_enter_underline_mode = tgetstr ("us", address); | |
2649 | tty->TS_exit_underline_mode = tgetstr ("ue", address); | |
2650 | tty->TS_enter_bold_mode = tgetstr ("md", address); | |
2651 | tty->TS_enter_dim_mode = tgetstr ("mh", address); | |
2652 | tty->TS_enter_blink_mode = tgetstr ("mb", address); | |
2653 | tty->TS_enter_reverse_mode = tgetstr ("mr", address); | |
2654 | tty->TS_enter_alt_charset_mode = tgetstr ("as", address); | |
2655 | tty->TS_exit_alt_charset_mode = tgetstr ("ae", address); | |
2656 | tty->TS_exit_attribute_mode = tgetstr ("me", address); | |
177c0ea7 | 2657 | |
6548cf00 KL |
2658 | MultiUp (tty) = tgetstr ("UP", address); |
2659 | MultiDown (tty) = tgetstr ("DO", address); | |
2660 | MultiLeft (tty) = tgetstr ("LE", address); | |
2661 | MultiRight (tty) = tgetstr ("RI", address); | |
08a24c47 | 2662 | |
e7f90eab GM |
2663 | /* SVr4/ANSI color suppert. If "op" isn't available, don't support |
2664 | color because we can't switch back to the default foreground and | |
2665 | background. */ | |
fca177d4 KL |
2666 | tty->TS_orig_pair = tgetstr ("op", address); |
2667 | if (tty->TS_orig_pair) | |
a168702a | 2668 | { |
fca177d4 KL |
2669 | tty->TS_set_foreground = tgetstr ("AF", address); |
2670 | tty->TS_set_background = tgetstr ("AB", address); | |
2671 | if (!tty->TS_set_foreground) | |
e7f90eab GM |
2672 | { |
2673 | /* SVr4. */ | |
fca177d4 KL |
2674 | tty->TS_set_foreground = tgetstr ("Sf", address); |
2675 | tty->TS_set_background = tgetstr ("Sb", address); | |
e7f90eab | 2676 | } |
177c0ea7 | 2677 | |
fca177d4 KL |
2678 | tty->TN_max_colors = tgetnum ("Co"); |
2679 | tty->TN_max_pairs = tgetnum ("pa"); | |
177c0ea7 | 2680 | |
fca177d4 KL |
2681 | tty->TN_no_color_video = tgetnum ("NC"); |
2682 | if (tty->TN_no_color_video == -1) | |
2683 | tty->TN_no_color_video = 0; | |
a168702a | 2684 | } |
a168702a | 2685 | |
fca177d4 | 2686 | tty_default_color_capabilities (tty, 1); |
ace28297 | 2687 | |
6548cf00 | 2688 | MagicWrap (tty) = tgetflag ("xn"); |
e4058338 KH |
2689 | /* Since we make MagicWrap terminals look like AutoWrap, we need to have |
2690 | the former flag imply the latter. */ | |
6548cf00 | 2691 | AutoWrap (tty) = MagicWrap (tty) || tgetflag ("am"); |
6ed8eeff | 2692 | terminal->memory_below_frame = tgetflag ("db"); |
fca177d4 | 2693 | tty->TF_hazeltine = tgetflag ("hz"); |
6ed8eeff | 2694 | terminal->must_write_spaces = tgetflag ("in"); |
fca177d4 KL |
2695 | tty->meta_key = tgetflag ("km") || tgetflag ("MT"); |
2696 | tty->TF_insmode_motion = tgetflag ("mi"); | |
2697 | tty->TF_standout_motion = tgetflag ("ms"); | |
2698 | tty->TF_underscore = tgetflag ("ul"); | |
2699 | tty->TF_teleray = tgetflag ("xt"); | |
08a24c47 | 2700 | |
e7cf0fa0 | 2701 | #ifdef MULTI_KBOARD |
6ed8eeff KL |
2702 | terminal->kboard = (KBOARD *) xmalloc (sizeof (KBOARD)); |
2703 | init_kboard (terminal->kboard); | |
2704 | terminal->kboard->next_kboard = all_kboards; | |
2705 | all_kboards = terminal->kboard; | |
2706 | terminal->kboard->reference_count++; | |
e7cf0fa0 KL |
2707 | /* Don't let the initial kboard remain current longer than necessary. |
2708 | That would cause problems if a file loaded on startup tries to | |
2709 | prompt in the mini-buffer. */ | |
2710 | if (current_kboard == initial_kboard) | |
6ed8eeff | 2711 | current_kboard = terminal->kboard; |
e7cf0fa0 KL |
2712 | #endif |
2713 | ||
6ed8eeff | 2714 | term_get_fkeys (address, terminal->kboard); |
5c2c7893 | 2715 | |
ff11dfa1 | 2716 | /* Get frame size from system, or else from termcap. */ |
3b12ce12 RS |
2717 | { |
2718 | int height, width; | |
0b0d3e0b | 2719 | get_tty_size (fileno (tty->input), &width, &height); |
0a125897 KL |
2720 | FrameCols (tty) = width; |
2721 | FrameRows (tty) = height; | |
3b12ce12 RS |
2722 | } |
2723 | ||
0a125897 KL |
2724 | if (FrameCols (tty) <= 0) |
2725 | FrameCols (tty) = tgetnum ("co"); | |
2726 | if (FrameRows (tty) <= 0) | |
2727 | FrameRows (tty) = tgetnum ("li"); | |
177c0ea7 | 2728 | |
0a125897 | 2729 | if (FrameRows (tty) < 3 || FrameCols (tty) < 3) |
6ed8eeff | 2730 | maybe_fatal (must_succeed, NULL, terminal, |
3224dac1 KL |
2731 | "Screen size %dx%d is too small" |
2732 | "Screen size %dx%d is too small", | |
0a125897 | 2733 | FrameCols (tty), FrameRows (tty)); |
ee7a2de4 | 2734 | |
8a56675d | 2735 | #if 0 /* This is not used anywhere. */ |
6ed8eeff | 2736 | tty->terminal->min_padding_speed = tgetnum ("pb"); |
8a56675d | 2737 | #endif |
28d440ab | 2738 | |
6548cf00 | 2739 | TabWidth (tty) = tgetnum ("tw"); |
08a24c47 JB |
2740 | |
2741 | #ifdef VMS | |
2742 | /* These capabilities commonly use ^J. | |
2743 | I don't know why, but sending them on VMS does not work; | |
2744 | it causes following spaces to be lost, sometimes. | |
2745 | For now, the simplest fix is to avoid using these capabilities ever. */ | |
6548cf00 KL |
2746 | if (Down (tty) && Down (tty)[0] == '\n') |
2747 | Down (tty) = 0; | |
08a24c47 JB |
2748 | #endif /* VMS */ |
2749 | ||
fca177d4 KL |
2750 | if (!tty->TS_bell) |
2751 | tty->TS_bell = "\07"; | |
08a24c47 | 2752 | |
fca177d4 KL |
2753 | if (!tty->TS_fwd_scroll) |
2754 | tty->TS_fwd_scroll = Down (tty); | |
08a24c47 | 2755 | |
fca177d4 | 2756 | PC = tty->TS_pad_char ? *tty->TS_pad_char : 0; |
08a24c47 | 2757 | |
6548cf00 KL |
2758 | if (TabWidth (tty) < 0) |
2759 | TabWidth (tty) = 8; | |
177c0ea7 | 2760 | |
08a24c47 JB |
2761 | /* Turned off since /etc/termcap seems to have :ta= for most terminals |
2762 | and newer termcap doc does not seem to say there is a default. | |
6548cf00 KL |
2763 | if (!tty->Wcm->cm_tab) |
2764 | tty->Wcm->cm_tab = "\t"; | |
08a24c47 JB |
2765 | */ |
2766 | ||
54800acb MB |
2767 | /* We don't support standout modes that use `magic cookies', so |
2768 | turn off any that do. */ | |
fca177d4 | 2769 | if (tty->TS_standout_mode && tgetnum ("sg") >= 0) |
54800acb | 2770 | { |
fca177d4 KL |
2771 | tty->TS_standout_mode = 0; |
2772 | tty->TS_end_standout_mode = 0; | |
54800acb | 2773 | } |
fca177d4 | 2774 | if (tty->TS_enter_underline_mode && tgetnum ("ug") >= 0) |
54800acb | 2775 | { |
fca177d4 KL |
2776 | tty->TS_enter_underline_mode = 0; |
2777 | tty->TS_exit_underline_mode = 0; | |
54800acb MB |
2778 | } |
2779 | ||
2780 | /* If there's no standout mode, try to use underlining instead. */ | |
fca177d4 | 2781 | if (tty->TS_standout_mode == 0) |
08a24c47 | 2782 | { |
fca177d4 KL |
2783 | tty->TS_standout_mode = tty->TS_enter_underline_mode; |
2784 | tty->TS_end_standout_mode = tty->TS_exit_underline_mode; | |
08a24c47 JB |
2785 | } |
2786 | ||
afd359c4 RS |
2787 | /* If no `se' string, try using a `me' string instead. |
2788 | If that fails, we can't use standout mode at all. */ | |
fca177d4 | 2789 | if (tty->TS_end_standout_mode == 0) |
afd359c4 | 2790 | { |
e4bfb3b6 | 2791 | char *s = tgetstr ("me", address); |
afd359c4 | 2792 | if (s != 0) |
fca177d4 | 2793 | tty->TS_end_standout_mode = s; |
afd359c4 | 2794 | else |
fca177d4 | 2795 | tty->TS_standout_mode = 0; |
afd359c4 RS |
2796 | } |
2797 | ||
fca177d4 | 2798 | if (tty->TF_teleray) |
08a24c47 | 2799 | { |
6548cf00 | 2800 | tty->Wcm->cm_tab = 0; |
54800acb | 2801 | /* We can't support standout mode, because it uses magic cookies. */ |
fca177d4 | 2802 | tty->TS_standout_mode = 0; |
08a24c47 | 2803 | /* But that means we cannot rely on ^M to go to column zero! */ |
6548cf00 | 2804 | CR (tty) = 0; |
08a24c47 JB |
2805 | /* LF can't be trusted either -- can alter hpos */ |
2806 | /* if move at column 0 thru a line with TS_standout_mode */ | |
6548cf00 | 2807 | Down (tty) = 0; |
08a24c47 JB |
2808 | } |
2809 | ||
2810 | /* Special handling for certain terminal types known to need it */ | |
2811 | ||
2812 | if (!strcmp (terminal_type, "supdup")) | |
2813 | { | |
6ed8eeff | 2814 | terminal->memory_below_frame = 1; |
6548cf00 | 2815 | tty->Wcm->cm_losewrap = 1; |
08a24c47 JB |
2816 | } |
2817 | if (!strncmp (terminal_type, "c10", 3) | |
2818 | || !strcmp (terminal_type, "perq")) | |
2819 | { | |
2820 | /* Supply a makeshift :wi string. | |
2821 | This string is not valid in general since it works only | |
2822 | for windows starting at the upper left corner; | |
2823 | but that is all Emacs uses. | |
daf01701 | 2824 | |
ff11dfa1 | 2825 | This string works only if the frame is using |
08a24c47 JB |
2826 | the top of the video memory, because addressing is memory-relative. |
2827 | So first check the :ti string to see if that is true. | |
2828 | ||
2829 | It would be simpler if the :wi string could go in the termcap | |
2830 | entry, but it can't because it is not fully valid. | |
2831 | If it were in the termcap entry, it would confuse other programs. */ | |
fca177d4 | 2832 | if (!tty->TS_set_window) |
08a24c47 | 2833 | { |
fca177d4 | 2834 | p = tty->TS_termcap_modes; |
08a24c47 JB |
2835 | while (*p && strcmp (p, "\033v ")) |
2836 | p++; | |
2837 | if (*p) | |
fca177d4 | 2838 | tty->TS_set_window = "\033v%C %C %C %C "; |
08a24c47 JB |
2839 | } |
2840 | /* Termcap entry often fails to have :in: flag */ | |
6ed8eeff | 2841 | terminal->must_write_spaces = 1; |
08a24c47 JB |
2842 | /* :ti string typically fails to have \E^G! in it */ |
2843 | /* This limits scope of insert-char to one line. */ | |
fca177d4 | 2844 | strcpy (area, tty->TS_termcap_modes); |
08a24c47 | 2845 | strcat (area, "\033\007!"); |
fca177d4 | 2846 | tty->TS_termcap_modes = area; |
08a24c47 | 2847 | area += strlen (area) + 1; |
6548cf00 | 2848 | p = AbsPosition (tty); |
08a24c47 | 2849 | /* Change all %+ parameters to %C, to handle |
28d440ab | 2850 | values above 96 correctly for the C100. */ |
08a24c47 | 2851 | while (*p) |
28d440ab KL |
2852 | { |
2853 | if (p[0] == '%' && p[1] == '+') | |
2854 | p[1] = 'C'; | |
2855 | p++; | |
2856 | } | |
08a24c47 JB |
2857 | } |
2858 | ||
0a125897 | 2859 | tty->specified_window = FrameRows (tty); |
08a24c47 | 2860 | |
6548cf00 | 2861 | if (Wcm_init (tty) == -1) /* can't do cursor motion */ |
3224dac1 | 2862 | { |
6ed8eeff | 2863 | maybe_fatal (must_succeed, NULL, terminal, |
3224dac1 | 2864 | "Terminal type \"%s\" is not powerful enough to run Emacs", |
08a24c47 | 2865 | #ifdef VMS |
3224dac1 | 2866 | "Terminal type \"%s\" is not powerful enough to run Emacs.\n\ |
08a24c47 JB |
2867 | It lacks the ability to position the cursor.\n\ |
2868 | If that is not the actual type of terminal you have, use either the\n\ | |
2869 | DCL command `SET TERMINAL/DEVICE= ...' for DEC-compatible terminals,\n\ | |
e12c1054 | 2870 | or `define EMACS_TERM \"terminal type\"' for non-DEC terminals.", |
37dad45a RS |
2871 | #else /* not VMS */ |
2872 | # ifdef TERMINFO | |
3224dac1 | 2873 | "Terminal type \"%s\" is not powerful enough to run Emacs.\n\ |
0a125897 KL |
2874 | It lacks the ability to position the cursor.\n\ |
2875 | If that is not the actual type of terminal you have,\n\ | |
37dad45a RS |
2876 | use the Bourne shell command `TERM=... export TERM' (C-shell:\n\ |
2877 | `setenv TERM ...') to specify the correct type. It may be necessary\n\ | |
e12c1054 | 2878 | to do `unset TERMINFO' (C-shell: `unsetenv TERMINFO') as well.", |
37dad45a | 2879 | # else /* TERMCAP */ |
3224dac1 | 2880 | "Terminal type \"%s\" is not powerful enough to run Emacs.\n\ |
0a125897 | 2881 | It lacks the ability to position the cursor.\n\ |
08a24c47 | 2882 | If that is not the actual type of terminal you have,\n\ |
c5a9c3e6 RS |
2883 | use the Bourne shell command `TERM=... export TERM' (C-shell:\n\ |
2884 | `setenv TERM ...') to specify the correct type. It may be necessary\n\ | |
e12c1054 | 2885 | to do `unset TERMCAP' (C-shell: `unsetenv TERMCAP') as well.", |
37dad45a RS |
2886 | # endif /* TERMINFO */ |
2887 | #endif /*VMS */ | |
3224dac1 | 2888 | terminal_type); |
fca177d4 | 2889 | } |
daf01701 | 2890 | |
0a125897 | 2891 | if (FrameRows (tty) <= 0 || FrameCols (tty) <= 0) |
6ed8eeff | 2892 | maybe_fatal (must_succeed, NULL, terminal, |
3224dac1 KL |
2893 | "Could not determine the frame size", |
2894 | "Could not determine the frame size"); | |
08a24c47 | 2895 | |
fca177d4 KL |
2896 | tty->delete_in_insert_mode |
2897 | = tty->TS_delete_mode && tty->TS_insert_mode | |
2898 | && !strcmp (tty->TS_delete_mode, tty->TS_insert_mode); | |
08a24c47 | 2899 | |
fca177d4 KL |
2900 | tty->se_is_so = (tty->TS_standout_mode |
2901 | && tty->TS_end_standout_mode | |
2902 | && !strcmp (tty->TS_standout_mode, tty->TS_end_standout_mode)); | |
08a24c47 | 2903 | |
0b0d3e0b | 2904 | UseTabs (tty) = tabs_safe_p (fileno (tty->input)) && TabWidth (tty) == 8; |
08a24c47 | 2905 | |
6ed8eeff | 2906 | terminal->scroll_region_ok |
6548cf00 | 2907 | = (tty->Wcm->cm_abs |
fca177d4 | 2908 | && (tty->TS_set_window || tty->TS_set_scroll_region || tty->TS_set_scroll_region_1)); |
08a24c47 | 2909 | |
6ed8eeff | 2910 | terminal->line_ins_del_ok |
fca177d4 KL |
2911 | = (((tty->TS_ins_line || tty->TS_ins_multi_lines) |
2912 | && (tty->TS_del_line || tty->TS_del_multi_lines)) | |
6ed8eeff | 2913 | || (terminal->scroll_region_ok |
fca177d4 | 2914 | && tty->TS_fwd_scroll && tty->TS_rev_scroll)); |
28d440ab | 2915 | |
6ed8eeff | 2916 | terminal->char_ins_del_ok |
fca177d4 KL |
2917 | = ((tty->TS_ins_char || tty->TS_insert_mode |
2918 | || tty->TS_pad_inserted_char || tty->TS_ins_multi_chars) | |
2919 | && (tty->TS_del_char || tty->TS_del_multi_chars)); | |
8a56675d | 2920 | |
6ed8eeff | 2921 | terminal->fast_clear_end_of_line = tty->TS_clr_line != 0; |
08a24c47 | 2922 | |
0b0d3e0b | 2923 | init_baud_rate (fileno (tty->input)); |
20a558dc | 2924 | |
daf01701 KL |
2925 | #ifdef AIXHFT |
2926 | /* The HFT system on AIX doesn't optimize for scrolling, so it's | |
2927 | really ugly at times. */ | |
6ed8eeff KL |
2928 | terminal->line_ins_del_ok = 0; |
2929 | terminal->char_ins_del_ok = 0; | |
daf01701 KL |
2930 | #endif |
2931 | ||
0a125897 KL |
2932 | /* Don't do this. I think termcap may still need the buffer. */ |
2933 | /* xfree (buffer); */ | |
28d440ab | 2934 | |
0a125897 KL |
2935 | /* Init system terminal modes (RAW or CBREAK, etc.). */ |
2936 | init_sys_modes (tty); | |
daf01701 | 2937 | |
6ed8eeff | 2938 | return terminal; |
7b00d185 | 2939 | #endif /* not WINDOWSNT */ |
08a24c47 JB |
2940 | } |
2941 | ||
a4c6993d | 2942 | /* Auxiliary error-handling function for init_tty. |
6ed8eeff | 2943 | Free BUFFER and delete TERMINAL, then call error or fatal |
da8e1115 KL |
2944 | with str1 or str2, respectively, according to MUST_SUCCEED. */ |
2945 | ||
3224dac1 | 2946 | static void |
6ed8eeff | 2947 | maybe_fatal (must_succeed, buffer, terminal, str1, str2, arg1, arg2) |
3224dac1 KL |
2948 | int must_succeed; |
2949 | char *buffer; | |
6ed8eeff | 2950 | struct terminal *terminal; |
3224dac1 KL |
2951 | char *str1, *str2, *arg1, *arg2; |
2952 | { | |
2953 | if (buffer) | |
2954 | xfree (buffer); | |
2955 | ||
6ed8eeff KL |
2956 | if (terminal) |
2957 | delete_tty (terminal); | |
3224dac1 KL |
2958 | |
2959 | if (must_succeed) | |
2960 | fatal (str2, arg1, arg2); | |
2961 | else | |
2962 | error (str1, arg1, arg2); | |
2963 | ||
2964 | abort (); | |
2965 | } | |
2966 | ||
08a24c47 | 2967 | /* VARARGS 1 */ |
dfcf069d | 2968 | void |
08a24c47 | 2969 | fatal (str, arg1, arg2) |
4746118a | 2970 | char *str, *arg1, *arg2; |
08a24c47 JB |
2971 | { |
2972 | fprintf (stderr, "emacs: "); | |
2973 | fprintf (stderr, str, arg1, arg2); | |
e12c1054 | 2974 | fprintf (stderr, "\n"); |
08a24c47 JB |
2975 | fflush (stderr); |
2976 | exit (1); | |
2977 | } | |
07c57952 | 2978 | |
819b8f00 KL |
2979 | \f |
2980 | ||
6ed8eeff | 2981 | /* Delete the given tty terminal, closing all frames on it. */ |
da8e1115 | 2982 | |
ed8dad6b | 2983 | static void |
6ed8eeff | 2984 | delete_tty (struct terminal *terminal) |
fca177d4 | 2985 | { |
428a555e | 2986 | struct tty_display_info *tty; |
fca177d4 | 2987 | Lisp_Object tail, frame; |
6ed8eeff | 2988 | int last_terminal; |
4d553a13 | 2989 | |
ab797f65 KL |
2990 | /* Protect against recursive calls. Fdelete_frame in |
2991 | delete_terminal calls us back when it deletes our last frame. */ | |
a98f1617 | 2992 | if (terminal->deleted) |
0a125897 | 2993 | return; |
fca177d4 | 2994 | |
6ed8eeff | 2995 | if (terminal->type != output_termcap) |
428a555e KL |
2996 | abort (); |
2997 | ||
6ed8eeff | 2998 | tty = terminal->display_info.tty; |
428a555e | 2999 | |
6ed8eeff | 3000 | last_terminal = 1; |
81be1a93 KL |
3001 | FOR_EACH_FRAME (tail, frame) |
3002 | { | |
3003 | struct frame *f = XFRAME (frame); | |
3004 | if (FRAME_LIVE_P (f) && (!FRAME_TERMCAP_P (f) || FRAME_TTY (f) != tty)) | |
3005 | { | |
6ed8eeff | 3006 | last_terminal = 0; |
81be1a93 KL |
3007 | break; |
3008 | } | |
3009 | } | |
6ed8eeff KL |
3010 | if (last_terminal) |
3011 | error ("Attempt to delete the sole terminal device with live frames"); | |
81be1a93 | 3012 | |
fca177d4 KL |
3013 | if (tty == tty_list) |
3014 | tty_list = tty->next; | |
3015 | else | |
3016 | { | |
28d7d09f | 3017 | struct tty_display_info *p; |
fca177d4 KL |
3018 | for (p = tty_list; p && p->next != tty; p = p->next) |
3019 | ; | |
3020 | ||
3021 | if (! p) | |
3022 | /* This should not happen. */ | |
3023 | abort (); | |
3024 | ||
0a125897 KL |
3025 | p->next = tty->next; |
3026 | tty->next = 0; | |
fca177d4 KL |
3027 | } |
3028 | ||
7e59217d | 3029 | /* reset_sys_modes needs a valid device, so this call needs to be |
6ed8eeff | 3030 | before delete_terminal. */ |
04c3243c | 3031 | reset_sys_modes (tty); |
fca177d4 | 3032 | |
6ed8eeff | 3033 | delete_terminal (terminal); |
3224dac1 | 3034 | |
ab797f65 KL |
3035 | if (tty->name) |
3036 | xfree (tty->name); | |
3037 | ||
fca177d4 KL |
3038 | if (tty->type) |
3039 | xfree (tty->type); | |
daf01701 | 3040 | |
fca177d4 | 3041 | if (tty->input) |
819b8f00 KL |
3042 | { |
3043 | delete_keyboard_wait_descriptor (fileno (tty->input)); | |
3044 | if (tty->input != stdin) | |
3045 | fclose (tty->input); | |
3046 | } | |
3047 | if (tty->output && tty->output != stdout && tty->output != tty->input) | |
fca177d4 KL |
3048 | fclose (tty->output); |
3049 | if (tty->termscript) | |
3050 | fclose (tty->termscript); | |
daf01701 | 3051 | |
fca177d4 | 3052 | if (tty->old_tty) |
0a125897 | 3053 | xfree (tty->old_tty); |
fca177d4 | 3054 | |
0a125897 | 3055 | if (tty->Wcm) |
daf01701 KL |
3056 | xfree (tty->Wcm); |
3057 | ||
28d7d09f | 3058 | bzero (tty, sizeof (struct tty_display_info)); |
fca177d4 | 3059 | xfree (tty); |
fca177d4 KL |
3060 | } |
3061 | ||
428a555e KL |
3062 | \f |
3063 | ||
28d7d09f | 3064 | /* Mark the pointers in the tty_display_info objects. |
819b8f00 | 3065 | Called by the Fgarbage_collector. */ |
da8e1115 | 3066 | |
fca177d4 | 3067 | void |
ed8dad6b | 3068 | mark_ttys (void) |
fca177d4 | 3069 | { |
28d7d09f | 3070 | struct tty_display_info *tty; |
0c72d684 | 3071 | |
819b8f00 | 3072 | for (tty = tty_list; tty; tty = tty->next) |
fca177d4 | 3073 | { |
819b8f00 KL |
3074 | if (tty->top_frame) |
3075 | mark_object (tty->top_frame); | |
fca177d4 KL |
3076 | } |
3077 | } | |
3078 | ||
428a555e KL |
3079 | \f |
3080 | ||
819b8f00 KL |
3081 | void |
3082 | syms_of_term () | |
3083 | { | |
3084 | DEFVAR_BOOL ("system-uses-terminfo", &system_uses_terminfo, | |
3085 | doc: /* Non-nil means the system uses terminfo rather than termcap. | |
3086 | This variable can be used by terminal emulator packages. */); | |
3087 | #ifdef TERMINFO | |
3088 | system_uses_terminfo = 1; | |
3089 | #else | |
3090 | system_uses_terminfo = 0; | |
3091 | #endif | |
3092 | ||
0b0d3e0b KL |
3093 | DEFVAR_LISP ("suspend-tty-functions", &Vsuspend_tty_functions, |
3094 | doc: /* Functions to be run after suspending a tty. | |
ab797f65 | 3095 | The functions are run with one argument, the terminal id to be suspended. |
0b0d3e0b KL |
3096 | See `suspend-tty'. */); |
3097 | Vsuspend_tty_functions = Qnil; | |
3098 | ||
3099 | ||
3100 | DEFVAR_LISP ("resume-tty-functions", &Vresume_tty_functions, | |
3101 | doc: /* Functions to be run after resuming a tty. | |
ab797f65 | 3102 | The functions are run with one argument, the terminal id that was revived. |
0b0d3e0b KL |
3103 | See `resume-tty'. */); |
3104 | Vresume_tty_functions = Qnil; | |
3105 | ||
0db017c0 SM |
3106 | DEFVAR_BOOL ("visible-cursor", &visible_cursor, |
3107 | doc: /* Non-nil means to make the cursor very visible. | |
3108 | This only has an effect when running in a text terminal. | |
3109 | What means \"very visible\" is up to your terminal. It may make the cursor | |
3110 | bigger, or it may make it blink, or it may do nothing at all. */); | |
3111 | visible_cursor = 1; | |
3112 | ||
819b8f00 KL |
3113 | defsubr (&Stty_display_color_p); |
3114 | defsubr (&Stty_display_color_cells); | |
072d84a6 | 3115 | defsubr (&Stty_no_underline); |
6ed8eeff KL |
3116 | defsubr (&Stty_type); |
3117 | defsubr (&Scontrolling_tty_p); | |
0b0d3e0b KL |
3118 | defsubr (&Ssuspend_tty); |
3119 | defsubr (&Sresume_tty); | |
819b8f00 KL |
3120 | } |
3121 | ||
3122 | ||
3123 | ||
ab5796a9 MB |
3124 | /* arch-tag: 498e7449-6f2e-45e2-91dd-b7d4ca488193 |
3125 | (do not change this comment) */ |