Commit | Line | Data |
---|---|---|
d284f58f | 1 | /* Terminal control module for terminals described by TERMCAP |
0b5538bd TTN |
2 | Copyright (C) 1985, 1986, 1987, 1993, 1994, 1995, 1998, 2000, 2001, |
3 | 2002, 2003, 2004, 2005 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> |
7ee72033 | 28 | |
28d440ab KL |
29 | #include <sys/file.h> |
30 | ||
0c72d684 | 31 | #include <unistd.h> /* For isatty. */ |
67ad74df KL |
32 | |
33 | #if HAVE_TERMIOS_H | |
34 | #include <termios.h> /* For TIOCNOTTY. */ | |
35 | #endif | |
03a1d6bd KL |
36 | |
37 | #include <signal.h> | |
0c72d684 | 38 | |
9628b887 | 39 | #include "lisp.h" |
08a24c47 JB |
40 | #include "termchar.h" |
41 | #include "termopts.h" | |
a4decb7f KH |
42 | #include "charset.h" |
43 | #include "coding.h" | |
2538fae4 | 44 | #include "keyboard.h" |
ff11dfa1 | 45 | #include "frame.h" |
08a24c47 JB |
46 | #include "disptab.h" |
47 | #include "termhooks.h" | |
dfcf069d | 48 | #include "dispextern.h" |
a168702a | 49 | #include "window.h" |
8feddab4 | 50 | #include "keymap.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 KL |
88 | static void tty_background_highlight P_ ((struct tty_display_info *tty)); |
89 | static void dissociate_if_controlling_tty P_ ((int fd)); | |
90 | static void delete_tty P_ ((struct device *)); | |
a168702a | 91 | |
6548cf00 KL |
92 | #define OUTPUT(tty, a) \ |
93 | emacs_tputs ((tty), a, \ | |
94 | (int) (FRAME_LINES (XFRAME (selected_frame)) \ | |
95 | - curY (tty)), \ | |
96 | cmputc) | |
97 | ||
28d440ab KL |
98 | #define OUTPUT1(tty, a) emacs_tputs ((tty), a, 1, cmputc) |
99 | #define OUTPUTL(tty, a, lines) emacs_tputs ((tty), a, lines, cmputc) | |
a168702a | 100 | |
28d440ab | 101 | #define OUTPUT_IF(tty, a) \ |
6548cf00 KL |
102 | do { \ |
103 | if (a) \ | |
104 | emacs_tputs ((tty), a, \ | |
105 | (int) (FRAME_LINES (XFRAME (selected_frame)) \ | |
106 | - curY (tty) ), \ | |
107 | cmputc); \ | |
108 | } while (0) | |
177c0ea7 | 109 | |
28d440ab | 110 | #define OUTPUT1_IF(tty, a) do { if (a) emacs_tputs ((tty), a, 1, cmputc); } while (0) |
08a24c47 | 111 | |
f46c2aff KS |
112 | /* Display space properties */ |
113 | ||
114 | extern Lisp_Object Qspace, QCalign_to, QCwidth; | |
115 | ||
0b0d3e0b KL |
116 | /* Functions to call after suspending a tty. */ |
117 | Lisp_Object Vsuspend_tty_functions; | |
118 | ||
119 | /* Functions to call after resuming a tty. */ | |
120 | Lisp_Object Vresume_tty_functions; | |
121 | ||
428a555e | 122 | /* Chain of all tty device parameters. */ |
28d7d09f | 123 | struct tty_display_info *tty_list; |
08a24c47 | 124 | |
fca177d4 KL |
125 | /* Nonzero means no need to redraw the entire frame on resuming a |
126 | suspended Emacs. This is useful on terminals with multiple | |
127 | pages, where one page is used for Emacs and another for all | |
128 | else. */ | |
08a24c47 | 129 | int no_redraw_on_reenter; |
819b8f00 | 130 | |
4e6ba4a4 GM |
131 | /* Meaning of bits in no_color_video. Each bit set means that the |
132 | corresponding attribute cannot be combined with colors. */ | |
133 | ||
134 | enum no_color_bit | |
135 | { | |
136 | NC_STANDOUT = 1 << 0, | |
137 | NC_UNDERLINE = 1 << 1, | |
138 | NC_REVERSE = 1 << 2, | |
139 | NC_BLINK = 1 << 3, | |
140 | NC_DIM = 1 << 4, | |
141 | NC_BOLD = 1 << 5, | |
142 | NC_INVIS = 1 << 6, | |
143 | NC_PROTECT = 1 << 7, | |
144 | NC_ALT_CHARSET = 1 << 8 | |
145 | }; | |
146 | ||
08a24c47 JB |
147 | /* internal state */ |
148 | ||
8dd0c7cb | 149 | /* The largest frame width in any call to calculate_costs. */ |
a168702a | 150 | |
9882535b | 151 | int max_frame_cols; |
a168702a | 152 | |
8dd0c7cb | 153 | /* The largest frame height in any call to calculate_costs. */ |
a168702a | 154 | |
9882535b | 155 | int max_frame_lines; |
8dd0c7cb | 156 | |
0c72d684 KL |
157 | /* Non-zero if we have dropped our controlling tty and therefore |
158 | should not open a frame on stdout. */ | |
159 | static int no_controlling_tty; | |
160 | ||
07c57952 | 161 | /* Provided for lisp packages. */ |
a168702a | 162 | |
07c57952 KH |
163 | static int system_uses_terminfo; |
164 | ||
08a24c47 | 165 | char *tparam (); |
e4bfb3b6 RS |
166 | |
167 | extern char *tgetstr (); | |
08a24c47 | 168 | \f |
cb28b9c2 | 169 | |
1a89b7c6 AI |
170 | #ifdef WINDOWSNT |
171 | /* We aren't X windows, but we aren't termcap either. This makes me | |
172 | uncertain as to what value to use for frame.output_method. For | |
173 | this file, we'll define FRAME_TERMCAP_P to be zero so that our | |
174 | output hooks get called instead of the termcap functions. Probably | |
175 | the best long-term solution is to define an output_windows_nt... */ | |
176 | ||
177 | #undef FRAME_TERMCAP_P | |
178 | #define FRAME_TERMCAP_P(_f_) 0 | |
179 | #endif /* WINDOWSNT */ | |
180 | ||
08a24c47 | 181 | |
da8e1115 KL |
182 | /* Ring the bell on a tty. */ |
183 | ||
ed8dad6b | 184 | static void |
385ed61f | 185 | tty_ring_bell (struct frame *f) |
3224dac1 | 186 | { |
3224dac1 KL |
187 | struct tty_display_info *tty = FRAME_TTY (f); |
188 | ||
b6660415 KL |
189 | if (tty->output) |
190 | { | |
191 | OUTPUT (tty, (tty->TS_visible_bell && visible_bell | |
192 | ? tty->TS_visible_bell | |
193 | : tty->TS_bell)); | |
194 | fflush (tty->output); | |
195 | } | |
3224dac1 KL |
196 | } |
197 | ||
da8e1115 KL |
198 | /* Set up termcap modes for Emacs. */ |
199 | ||
200 | void | |
7e59217d | 201 | tty_set_terminal_modes (struct device *display) |
fca177d4 | 202 | { |
3224dac1 KL |
203 | struct tty_display_info *tty = display->display_info.tty; |
204 | ||
0b0d3e0b KL |
205 | if (tty->output) |
206 | { | |
fbf34973 KL |
207 | if (tty->TS_termcap_modes) |
208 | OUTPUT (tty, tty->TS_termcap_modes); | |
209 | else | |
210 | { | |
211 | /* Output enough newlines to scroll all the old screen contents | |
212 | off the screen, so it won't be overwritten and lost. */ | |
213 | int i; | |
a3c07f68 | 214 | current_tty = tty; |
fbf34973 | 215 | for (i = 0; i < FRAME_LINES (XFRAME (selected_frame)); i++) |
a3c07f68 | 216 | cmputc ('\n'); |
fbf34973 KL |
217 | } |
218 | ||
0b0d3e0b KL |
219 | OUTPUT_IF (tty, tty->TS_termcap_modes); |
220 | OUTPUT_IF (tty, tty->TS_cursor_visible); | |
221 | OUTPUT_IF (tty, tty->TS_keypad_mode); | |
222 | losecursor (tty); | |
2f98e6e3 | 223 | fflush (tty->output); |
0b0d3e0b | 224 | } |
fca177d4 KL |
225 | } |
226 | ||
da8e1115 KL |
227 | /* Reset termcap modes before exiting Emacs. */ |
228 | ||
229 | void | |
7e59217d | 230 | tty_reset_terminal_modes (struct device *display) |
fca177d4 | 231 | { |
3224dac1 | 232 | struct tty_display_info *tty = display->display_info.tty; |
0b0d3e0b KL |
233 | |
234 | if (tty->output) | |
235 | { | |
ed8dad6b KL |
236 | tty_turn_off_highlight (tty); |
237 | tty_turn_off_insert (tty); | |
0b0d3e0b KL |
238 | OUTPUT_IF (tty, tty->TS_end_keypad_mode); |
239 | OUTPUT_IF (tty, tty->TS_cursor_normal); | |
240 | OUTPUT_IF (tty, tty->TS_end_termcap_modes); | |
241 | OUTPUT_IF (tty, tty->TS_orig_pair); | |
242 | /* Output raw CR so kernel can track the cursor hpos. */ | |
243 | current_tty = tty; | |
244 | cmputc ('\r'); | |
2f98e6e3 | 245 | fflush (tty->output); |
0b0d3e0b | 246 | } |
fca177d4 KL |
247 | } |
248 | ||
da8e1115 KL |
249 | /* Flag the end of a display update on a termcap display. */ |
250 | ||
ed8dad6b | 251 | static void |
3224dac1 KL |
252 | tty_update_end (struct frame *f) |
253 | { | |
254 | struct tty_display_info *tty = FRAME_TTY (f); | |
255 | ||
256 | if (!XWINDOW (selected_window)->cursor_off_p) | |
257 | tty_show_cursor (tty); | |
ed8dad6b KL |
258 | tty_turn_off_insert (tty); |
259 | tty_background_highlight (tty); | |
3224dac1 KL |
260 | } |
261 | ||
da8e1115 KL |
262 | /* The implementation of set_terminal_window for termcap frames. */ |
263 | ||
ed8dad6b | 264 | static void |
385ed61f | 265 | tty_set_terminal_window (struct frame *f, int size) |
3224dac1 | 266 | { |
3224dac1 KL |
267 | struct tty_display_info *tty = FRAME_TTY (f); |
268 | ||
269 | tty->specified_window = size ? size : FRAME_LINES (f); | |
270 | if (FRAME_SCROLL_REGION_OK (f)) | |
ed8dad6b | 271 | tty_set_scroll_region (f, 0, tty->specified_window); |
08a24c47 JB |
272 | } |
273 | ||
ed8dad6b KL |
274 | static void |
275 | tty_set_scroll_region (struct frame *f, int start, int stop) | |
08a24c47 JB |
276 | { |
277 | char *buf; | |
28d7d09f | 278 | struct tty_display_info *tty = FRAME_TTY (f); |
177c0ea7 | 279 | |
fca177d4 KL |
280 | if (tty->TS_set_scroll_region) |
281 | buf = tparam (tty->TS_set_scroll_region, 0, 0, start, stop - 1); | |
282 | else if (tty->TS_set_scroll_region_1) | |
283 | buf = tparam (tty->TS_set_scroll_region_1, 0, 0, | |
ed02974b KL |
284 | FRAME_LINES (f), start, |
285 | FRAME_LINES (f) - stop, | |
286 | FRAME_LINES (f)); | |
08a24c47 | 287 | else |
fca177d4 | 288 | buf = tparam (tty->TS_set_window, 0, 0, start, 0, stop, FRAME_COLS (f)); |
177c0ea7 | 289 | |
6548cf00 | 290 | OUTPUT (tty, buf); |
9ac0d9e0 | 291 | xfree (buf); |
6548cf00 | 292 | losecursor (tty); |
08a24c47 | 293 | } |
d284f58f | 294 | |
08a24c47 | 295 | \f |
d284f58f | 296 | static void |
ed8dad6b | 297 | tty_turn_on_insert (struct tty_display_info *tty) |
08a24c47 | 298 | { |
fca177d4 KL |
299 | if (!tty->insert_mode) |
300 | OUTPUT (tty, tty->TS_insert_mode); | |
301 | tty->insert_mode = 1; | |
08a24c47 JB |
302 | } |
303 | ||
dfcf069d | 304 | void |
ed8dad6b | 305 | tty_turn_off_insert (struct tty_display_info *tty) |
08a24c47 | 306 | { |
fca177d4 KL |
307 | if (tty->insert_mode) |
308 | OUTPUT (tty, tty->TS_end_insert_mode); | |
309 | tty->insert_mode = 0; | |
08a24c47 JB |
310 | } |
311 | \f | |
54800acb | 312 | /* Handle highlighting. */ |
08a24c47 | 313 | |
dfcf069d | 314 | void |
ed8dad6b | 315 | tty_turn_off_highlight (struct tty_display_info *tty) |
08a24c47 | 316 | { |
fca177d4 KL |
317 | if (tty->standout_mode) |
318 | OUTPUT_IF (tty, tty->TS_end_standout_mode); | |
319 | tty->standout_mode = 0; | |
08a24c47 JB |
320 | } |
321 | ||
d284f58f | 322 | static void |
ed8dad6b | 323 | tty_turn_on_highlight (struct tty_display_info *tty) |
08a24c47 | 324 | { |
fca177d4 KL |
325 | if (!tty->standout_mode) |
326 | OUTPUT_IF (tty, tty->TS_standout_mode); | |
327 | tty->standout_mode = 1; | |
08a24c47 JB |
328 | } |
329 | ||
86a7d192 | 330 | static void |
ed8dad6b | 331 | tty_toggle_highlight (struct tty_display_info *tty) |
86a7d192 | 332 | { |
fca177d4 | 333 | if (tty->standout_mode) |
ed8dad6b | 334 | tty_turn_off_highlight (tty); |
86a7d192 | 335 | else |
ed8dad6b | 336 | tty_turn_on_highlight (tty); |
86a7d192 GM |
337 | } |
338 | ||
a168702a GM |
339 | |
340 | /* Make cursor invisible. */ | |
341 | ||
342 | static void | |
28d7d09f | 343 | tty_hide_cursor (struct tty_display_info *tty) |
a168702a | 344 | { |
fca177d4 | 345 | if (tty->cursor_hidden == 0) |
d284f58f | 346 | { |
fca177d4 KL |
347 | tty->cursor_hidden = 1; |
348 | OUTPUT_IF (tty, tty->TS_cursor_invisible); | |
d284f58f | 349 | } |
a168702a GM |
350 | } |
351 | ||
352 | ||
353 | /* Ensure that cursor is visible. */ | |
354 | ||
355 | static void | |
28d7d09f | 356 | tty_show_cursor (struct tty_display_info *tty) |
a168702a | 357 | { |
fca177d4 | 358 | if (tty->cursor_hidden) |
d284f58f | 359 | { |
fca177d4 KL |
360 | tty->cursor_hidden = 0; |
361 | OUTPUT_IF (tty, tty->TS_cursor_normal); | |
362 | OUTPUT_IF (tty, tty->TS_cursor_visible); | |
d284f58f | 363 | } |
a168702a GM |
364 | } |
365 | ||
366 | ||
08a24c47 JB |
367 | /* Set standout mode to the state it should be in for |
368 | empty space inside windows. What this is, | |
369 | depends on the user option inverse-video. */ | |
370 | ||
ed8dad6b KL |
371 | static void |
372 | tty_background_highlight (struct tty_display_info *tty) | |
08a24c47 | 373 | { |
08a24c47 | 374 | if (inverse_video) |
ed8dad6b | 375 | tty_turn_on_highlight (tty); |
08a24c47 | 376 | else |
ed8dad6b | 377 | tty_turn_off_highlight (tty); |
08a24c47 JB |
378 | } |
379 | ||
380 | /* Set standout mode to the mode specified for the text to be output. */ | |
381 | ||
dfcf069d | 382 | static void |
ed8dad6b | 383 | tty_highlight_if_desired (struct tty_display_info *tty) |
08a24c47 | 384 | { |
8ede64a5 | 385 | if (inverse_video) |
ed8dad6b | 386 | tty_turn_on_highlight (tty); |
8ede64a5 | 387 | else |
ed8dad6b | 388 | tty_turn_off_highlight (tty); |
08a24c47 JB |
389 | } |
390 | \f | |
391 | ||
a168702a GM |
392 | /* Move cursor to row/column position VPOS/HPOS. HPOS/VPOS are |
393 | frame-relative coordinates. */ | |
08a24c47 | 394 | |
ed8dad6b | 395 | static void |
385ed61f | 396 | tty_cursor_to (struct frame *f, int vpos, int hpos) |
3224dac1 | 397 | { |
3224dac1 | 398 | struct tty_display_info *tty = FRAME_TTY (f); |
6548cf00 | 399 | |
36cae867 KH |
400 | /* Detect the case where we are called from reset_sys_modes |
401 | and the costs have never been calculated. Do nothing. */ | |
fca177d4 | 402 | if (! tty->costs_set) |
36cae867 KH |
403 | return; |
404 | ||
6548cf00 KL |
405 | if (curY (tty) == vpos |
406 | && curX (tty) == hpos) | |
08a24c47 | 407 | return; |
fca177d4 | 408 | if (!tty->TF_standout_motion) |
ed8dad6b | 409 | tty_background_highlight (tty); |
fca177d4 | 410 | if (!tty->TF_insmode_motion) |
ed8dad6b | 411 | tty_turn_off_insert (tty); |
6548cf00 | 412 | cmgoto (tty, vpos, hpos); |
08a24c47 JB |
413 | } |
414 | ||
415 | /* Similar but don't take any account of the wasted characters. */ | |
416 | ||
ed8dad6b | 417 | static void |
385ed61f | 418 | tty_raw_cursor_to (struct frame *f, int row, int col) |
3224dac1 | 419 | { |
3224dac1 KL |
420 | struct tty_display_info *tty = FRAME_TTY (f); |
421 | ||
6548cf00 KL |
422 | if (curY (tty) == row |
423 | && curX (tty) == col) | |
08a24c47 | 424 | return; |
fca177d4 | 425 | if (!tty->TF_standout_motion) |
ed8dad6b | 426 | tty_background_highlight (tty); |
fca177d4 | 427 | if (!tty->TF_insmode_motion) |
ed8dad6b | 428 | tty_turn_off_insert (tty); |
6548cf00 | 429 | cmgoto (tty, row, col); |
08a24c47 JB |
430 | } |
431 | \f | |
432 | /* Erase operations */ | |
433 | ||
da8e1115 KL |
434 | /* Clear from cursor to end of frame on a termcap device. */ |
435 | ||
ed8dad6b | 436 | static void |
385ed61f | 437 | tty_clear_to_end (struct frame *f) |
3224dac1 KL |
438 | { |
439 | register int i; | |
3224dac1 KL |
440 | struct tty_display_info *tty = FRAME_TTY (f); |
441 | ||
fca177d4 | 442 | if (tty->TS_clr_to_bottom) |
08a24c47 | 443 | { |
ed8dad6b | 444 | tty_background_highlight (tty); |
fca177d4 | 445 | OUTPUT (tty, tty->TS_clr_to_bottom); |
08a24c47 JB |
446 | } |
447 | else | |
448 | { | |
6548cf00 | 449 | for (i = curY (tty); i < FRAME_LINES (f); i++) |
08a24c47 | 450 | { |
385ed61f KL |
451 | cursor_to (f, i, 0); |
452 | clear_end_of_line (f, FRAME_COLS (f)); | |
08a24c47 JB |
453 | } |
454 | } | |
455 | } | |
456 | ||
da8e1115 KL |
457 | /* Clear an entire termcap frame. */ |
458 | ||
ed8dad6b | 459 | static void |
385ed61f | 460 | tty_clear_frame (struct frame *f) |
3224dac1 | 461 | { |
3224dac1 KL |
462 | struct tty_display_info *tty = FRAME_TTY (f); |
463 | ||
fca177d4 | 464 | if (tty->TS_clr_frame) |
08a24c47 | 465 | { |
ed8dad6b | 466 | tty_background_highlight (tty); |
fca177d4 | 467 | OUTPUT (tty, tty->TS_clr_frame); |
6548cf00 | 468 | cmat (tty, 0, 0); |
08a24c47 JB |
469 | } |
470 | else | |
471 | { | |
385ed61f KL |
472 | cursor_to (f, 0, 0); |
473 | clear_to_end (f); | |
08a24c47 JB |
474 | } |
475 | } | |
476 | ||
da8e1115 KL |
477 | /* An implementation of clear_end_of_line for termcap frames. |
478 | ||
479 | Note that the cursor may be moved, on terminals lacking a `ce' string. */ | |
480 | ||
ed8dad6b | 481 | static void |
385ed61f | 482 | tty_clear_end_of_line (struct frame *f, int first_unused_hpos) |
0a125897 KL |
483 | { |
484 | register int i; | |
3224dac1 KL |
485 | struct tty_display_info *tty = FRAME_TTY (f); |
486 | ||
36cae867 KH |
487 | /* Detect the case where we are called from reset_sys_modes |
488 | and the costs have never been calculated. Do nothing. */ | |
fca177d4 | 489 | if (! tty->costs_set) |
36cae867 KH |
490 | return; |
491 | ||
6548cf00 | 492 | if (curX (tty) >= first_unused_hpos) |
08a24c47 | 493 | return; |
ed8dad6b | 494 | tty_background_highlight (tty); |
fca177d4 | 495 | if (tty->TS_clr_line) |
08a24c47 | 496 | { |
fca177d4 | 497 | OUTPUT1 (tty, tty->TS_clr_line); |
08a24c47 JB |
498 | } |
499 | else | |
500 | { /* have to do it the hard way */ | |
ed8dad6b | 501 | tty_turn_off_insert (tty); |
08a24c47 | 502 | |
a168702a | 503 | /* Do not write in last row last col with Auto-wrap on. */ |
6548cf00 | 504 | if (AutoWrap (tty) |
0a125897 KL |
505 | && curY (tty) == FrameRows (tty) - 1 |
506 | && first_unused_hpos == FrameCols (tty)) | |
08a24c47 JB |
507 | first_unused_hpos--; |
508 | ||
6548cf00 | 509 | for (i = curX (tty); i < first_unused_hpos; i++) |
08a24c47 | 510 | { |
0b0d3e0b KL |
511 | if (tty->termscript) |
512 | fputc (' ', tty->termscript); | |
513 | fputc (' ', tty->output); | |
08a24c47 | 514 | } |
6548cf00 | 515 | cmplus (tty, first_unused_hpos - curX (tty)); |
08a24c47 JB |
516 | } |
517 | } | |
518 | \f | |
af645abf KH |
519 | /* Buffer to store the source and result of code conversion for terminal. */ |
520 | static unsigned char *encode_terminal_buf; | |
521 | /* Allocated size of the above buffer. */ | |
522 | static int encode_terminal_bufsize; | |
a4decb7f | 523 | |
af645abf KH |
524 | /* Encode SRC_LEN glyphs starting at SRC to terminal output codes. |
525 | Set CODING->produced to the byte-length of the resulting byte | |
526 | sequence, and return a pointer to that byte sequence. */ | |
a4decb7f | 527 | |
302db699 | 528 | unsigned char * |
af645abf | 529 | encode_terminal_code (src, src_len, coding) |
a168702a | 530 | struct glyph *src; |
a4decb7f | 531 | int src_len; |
af645abf | 532 | struct coding_system *coding; |
a4decb7f | 533 | { |
feef4f84 | 534 | struct glyph *src_end = src + src_len; |
085d5908 | 535 | register GLYPH g; |
af645abf KH |
536 | unsigned char *buf; |
537 | int nchars, nbytes, required; | |
a4decb7f KH |
538 | register int tlen = GLYPH_TABLE_LENGTH; |
539 | register Lisp_Object *tbase = GLYPH_TABLE_BASE; | |
6589fd67 | 540 | |
af645abf KH |
541 | /* Allocate sufficient size of buffer to store all characters in |
542 | multibyte-form. But, it may be enlarged on demand if | |
543 | Vglyph_table contains a string. */ | |
544 | required = MAX_MULTIBYTE_LENGTH * src_len; | |
545 | if (encode_terminal_bufsize < required) | |
546 | { | |
af645abf KH |
547 | if (encode_terminal_bufsize == 0) |
548 | encode_terminal_buf = xmalloc (required); | |
549 | else | |
550 | encode_terminal_buf = xrealloc (encode_terminal_buf, required); | |
d6d31e57 | 551 | encode_terminal_bufsize = required; |
af645abf | 552 | } |
a4decb7f | 553 | |
af645abf KH |
554 | buf = encode_terminal_buf; |
555 | nchars = 0; | |
a4decb7f KH |
556 | while (src < src_end) |
557 | { | |
a4decb7f | 558 | /* We must skip glyphs to be padded for a wide character. */ |
a168702a | 559 | if (! CHAR_GLYPH_PADDING_P (*src)) |
a4decb7f | 560 | { |
32de38e4 KH |
561 | g = GLYPH_FROM_CHAR_GLYPH (src[0]); |
562 | ||
563 | if (g < 0 || g >= tlen) | |
085d5908 | 564 | { |
32de38e4 | 565 | /* This glyph doesn't has an entry in Vglyph_table. */ |
af645abf KH |
566 | if (CHAR_VALID_P (src->u.ch, 0)) |
567 | buf += CHAR_STRING (src->u.ch, buf); | |
32de38e4 | 568 | else |
af645abf KH |
569 | *buf++ = SPACEGLYPH; |
570 | nchars++; | |
085d5908 | 571 | } |
32de38e4 | 572 | else |
a4decb7f | 573 | { |
32de38e4 | 574 | /* This glyph has an entry in Vglyph_table, |
a4decb7f KH |
575 | so process any alias before testing for simpleness. */ |
576 | GLYPH_FOLLOW_ALIASES (tbase, tlen, g); | |
32de38e4 KH |
577 | |
578 | if (GLYPH_SIMPLE_P (tbase, tlen, g)) | |
579 | { | |
af645abf KH |
580 | int c = FAST_GLYPH_CHAR (g); |
581 | ||
582 | if (CHAR_VALID_P (c, 0)) | |
583 | buf += CHAR_STRING (c, buf); | |
584 | else | |
585 | *buf++ = SPACEGLYPH; | |
586 | nchars++; | |
32de38e4 KH |
587 | } |
588 | else | |
589 | { | |
590 | /* We have a string in Vglyph_table. */ | |
af645abf KH |
591 | Lisp_Object string; |
592 | ||
593 | string = tbase[g]; | |
594 | if (! STRING_MULTIBYTE (string)) | |
595 | string = string_to_multibyte (string); | |
596 | nbytes = buf - encode_terminal_buf; | |
fd4a9f8f | 597 | if (encode_terminal_bufsize < nbytes + SBYTES (string)) |
af645abf KH |
598 | { |
599 | encode_terminal_bufsize = nbytes + SBYTES (string); | |
600 | encode_terminal_buf = xrealloc (encode_terminal_buf, | |
601 | encode_terminal_bufsize); | |
602 | buf = encode_terminal_buf + nbytes; | |
603 | } | |
604 | bcopy (SDATA (string), buf, SBYTES (string)); | |
605 | buf += SBYTES (string); | |
606 | nchars += SCHARS (string); | |
32de38e4 | 607 | } |
171d7f24 | 608 | } |
a4decb7f KH |
609 | } |
610 | src++; | |
611 | } | |
177c0ea7 | 612 | |
af645abf KH |
613 | nbytes = buf - encode_terminal_buf; |
614 | coding->src_multibyte = 1; | |
615 | coding->dst_multibyte = 0; | |
616 | if (SYMBOLP (coding->pre_write_conversion) | |
617 | && ! NILP (Ffboundp (coding->pre_write_conversion))) | |
618 | { | |
feef4f84 | 619 | run_pre_write_conversin_on_c_str (&encode_terminal_buf, |
af645abf KH |
620 | &encode_terminal_bufsize, |
621 | nchars, nbytes, coding); | |
622 | nchars = coding->produced_char; | |
623 | nbytes = coding->produced; | |
624 | } | |
625 | required = nbytes + encoding_buffer_size (coding, nbytes); | |
626 | if (encode_terminal_bufsize < required) | |
627 | { | |
628 | encode_terminal_bufsize = required; | |
629 | encode_terminal_buf = xrealloc (encode_terminal_buf, required); | |
630 | } | |
a4decb7f | 631 | |
af645abf KH |
632 | encode_coding (coding, encode_terminal_buf, encode_terminal_buf + nbytes, |
633 | nbytes, encode_terminal_bufsize - nbytes); | |
634 | return encode_terminal_buf + nbytes; | |
a4decb7f KH |
635 | } |
636 | ||
08a24c47 | 637 | |
da8e1115 KL |
638 | /* An implementation of write_glyphs for termcap frames. */ |
639 | ||
ed8dad6b | 640 | static void |
385ed61f | 641 | tty_write_glyphs (struct frame *f, struct glyph *string, int len) |
08a24c47 | 642 | { |
af645abf KH |
643 | unsigned char *conversion_buffer; |
644 | struct coding_system *coding; | |
08a24c47 | 645 | |
3224dac1 | 646 | struct tty_display_info *tty = FRAME_TTY (f); |
6548cf00 | 647 | |
ed8dad6b | 648 | tty_turn_off_insert (tty); |
fca177d4 | 649 | tty_hide_cursor (tty); |
08a24c47 | 650 | |
a168702a | 651 | /* Don't dare write in last column of bottom line, if Auto-Wrap, |
ff11dfa1 | 652 | since that would scroll the whole frame on some terminals. */ |
08a24c47 | 653 | |
6548cf00 KL |
654 | if (AutoWrap (tty) |
655 | && curY (tty) + 1 == FRAME_LINES (f) | |
656 | && (curX (tty) + len) == FRAME_COLS (f)) | |
08a24c47 | 657 | len --; |
a4decb7f KH |
658 | if (len <= 0) |
659 | return; | |
08a24c47 | 660 | |
6548cf00 | 661 | cmplus (tty, len); |
177c0ea7 | 662 | |
af645abf KH |
663 | /* If terminal_coding does any conversion, use it, otherwise use |
664 | safe_terminal_coding. We can't use CODING_REQUIRE_ENCODING here | |
665 | because it always return 1 if the member src_multibyte is 1. */ | |
fad2f685 KL |
666 | coding = (FRAME_TERMINAL_CODING (f)->common_flags & CODING_REQUIRE_ENCODING_MASK |
667 | ? FRAME_TERMINAL_CODING (f) : &safe_terminal_coding); | |
6589fd67 KH |
668 | /* The mode bit CODING_MODE_LAST_BLOCK should be set to 1 only at |
669 | the tail. */ | |
af645abf | 670 | coding->mode &= ~CODING_MODE_LAST_BLOCK; |
177c0ea7 | 671 | |
a4decb7f | 672 | while (len > 0) |
08a24c47 | 673 | { |
a168702a | 674 | /* Identify a run of glyphs with the same face. */ |
32de38e4 | 675 | int face_id = string->face_id; |
a168702a | 676 | int n; |
177c0ea7 | 677 | |
a168702a | 678 | for (n = 1; n < len; ++n) |
32de38e4 | 679 | if (string[n].face_id != face_id) |
a168702a GM |
680 | break; |
681 | ||
682 | /* Turn appearance modes of the face of the run on. */ | |
ed8dad6b | 683 | tty_highlight_if_desired (tty); |
a168702a GM |
684 | turn_on_face (f, face_id); |
685 | ||
af645abf KH |
686 | if (n == len) |
687 | /* This is the last run. */ | |
688 | coding->mode |= CODING_MODE_LAST_BLOCK; | |
689 | conversion_buffer = encode_terminal_code (string, n, coding); | |
690 | if (coding->produced > 0) | |
08a24c47 | 691 | { |
fad2f685 KL |
692 | fwrite (conversion_buffer, 1, coding->produced, tty->output); |
693 | if (ferror (tty->output)) | |
694 | clearerr (tty->output); | |
695 | if (tty->termscript) | |
696 | fwrite (conversion_buffer, 1, coding->produced, tty->termscript); | |
08a24c47 | 697 | } |
af645abf KH |
698 | len -= n; |
699 | string += n; | |
a168702a GM |
700 | |
701 | /* Turn appearance modes off. */ | |
702 | turn_off_face (f, face_id); | |
ed8dad6b | 703 | tty_turn_off_highlight (tty); |
a4decb7f | 704 | } |
177c0ea7 | 705 | |
6548cf00 | 706 | cmcheckmagic (tty); |
08a24c47 JB |
707 | } |
708 | ||
da8e1115 KL |
709 | /* An implementation of insert_glyphs for termcap frames. */ |
710 | ||
ed8dad6b | 711 | static void |
385ed61f | 712 | tty_insert_glyphs (struct frame *f, struct glyph *start, int len) |
3224dac1 KL |
713 | { |
714 | char *buf; | |
715 | struct glyph *glyph = NULL; | |
af645abf KH |
716 | unsigned char *conversion_buffer; |
717 | unsigned char space[1]; | |
718 | struct coding_system *coding; | |
3224dac1 KL |
719 | |
720 | struct tty_display_info *tty = FRAME_TTY (f); | |
08a24c47 | 721 | |
fca177d4 | 722 | if (tty->TS_ins_multi_chars) |
08a24c47 | 723 | { |
fca177d4 | 724 | buf = tparam (tty->TS_ins_multi_chars, 0, 0, len); |
6548cf00 | 725 | OUTPUT1 (tty, buf); |
9ac0d9e0 | 726 | xfree (buf); |
08a24c47 | 727 | if (start) |
385ed61f | 728 | write_glyphs (f, start, len); |
08a24c47 JB |
729 | return; |
730 | } | |
731 | ||
ed8dad6b | 732 | tty_turn_on_insert (tty); |
6548cf00 | 733 | cmplus (tty, len); |
af645abf KH |
734 | |
735 | if (! start) | |
736 | space[0] = SPACEGLYPH; | |
737 | ||
738 | /* If terminal_coding does any conversion, use it, otherwise use | |
739 | safe_terminal_coding. We can't use CODING_REQUIRE_ENCODING here | |
740 | because it always return 1 if the member src_multibyte is 1. */ | |
fad2f685 KL |
741 | coding = (FRAME_TERMINAL_CODING (f)->common_flags & CODING_REQUIRE_ENCODING_MASK |
742 | ? FRAME_TERMINAL_CODING (f) : &safe_terminal_coding); | |
af645abf KH |
743 | /* The mode bit CODING_MODE_LAST_BLOCK should be set to 1 only at |
744 | the tail. */ | |
745 | coding->mode &= ~CODING_MODE_LAST_BLOCK; | |
746 | ||
07109bf9 | 747 | while (len-- > 0) |
08a24c47 | 748 | { |
fca177d4 | 749 | OUTPUT1_IF (tty, tty->TS_ins_char); |
08a24c47 | 750 | if (!start) |
32de38e4 | 751 | { |
af645abf KH |
752 | conversion_buffer = space; |
753 | coding->produced = 1; | |
32de38e4 | 754 | } |
08a24c47 | 755 | else |
08a24c47 | 756 | { |
ed8dad6b | 757 | tty_highlight_if_desired (tty); |
32de38e4 | 758 | turn_on_face (f, start->face_id); |
816be8b8 | 759 | glyph = start; |
a168702a | 760 | ++start; |
a4decb7f KH |
761 | /* We must open sufficient space for a character which |
762 | occupies more than one column. */ | |
a168702a | 763 | while (len && CHAR_GLYPH_PADDING_P (*start)) |
a4decb7f | 764 | { |
fca177d4 | 765 | OUTPUT1_IF (tty, tty->TS_ins_char); |
a4decb7f KH |
766 | start++, len--; |
767 | } | |
a4decb7f | 768 | |
32de38e4 KH |
769 | if (len <= 0) |
770 | /* This is the last glyph. */ | |
af645abf | 771 | coding->mode |= CODING_MODE_LAST_BLOCK; |
32de38e4 | 772 | |
fad2f685 | 773 | conversion_buffer = encode_terminal_code (glyph, 1, coding); |
32de38e4 | 774 | } |
a4decb7f | 775 | |
af645abf | 776 | if (coding->produced > 0) |
08a24c47 | 777 | { |
fad2f685 | 778 | fwrite (conversion_buffer, 1, coding->produced, tty->output); |
0b0d3e0b KL |
779 | if (ferror (tty->output)) |
780 | clearerr (tty->output); | |
781 | if (tty->termscript) | |
fad2f685 | 782 | fwrite (conversion_buffer, 1, coding->produced, tty->termscript); |
08a24c47 JB |
783 | } |
784 | ||
fca177d4 | 785 | OUTPUT1_IF (tty, tty->TS_pad_inserted_char); |
32de38e4 | 786 | if (start) |
65aa5e85 GM |
787 | { |
788 | turn_off_face (f, glyph->face_id); | |
ed8dad6b | 789 | tty_turn_off_highlight (tty); |
65aa5e85 | 790 | } |
9a6b6f92 | 791 | } |
177c0ea7 | 792 | |
6548cf00 | 793 | cmcheckmagic (tty); |
08a24c47 JB |
794 | } |
795 | ||
da8e1115 KL |
796 | /* An implementation of delete_glyphs for termcap frames. */ |
797 | ||
ed8dad6b | 798 | static void |
385ed61f | 799 | tty_delete_glyphs (struct frame *f, int n) |
3224dac1 KL |
800 | { |
801 | char *buf; | |
802 | register int i; | |
3224dac1 KL |
803 | |
804 | struct tty_display_info *tty = FRAME_TTY (f); | |
6548cf00 | 805 | |
fca177d4 | 806 | if (tty->delete_in_insert_mode) |
08a24c47 | 807 | { |
ed8dad6b | 808 | tty_turn_on_insert (tty); |
08a24c47 JB |
809 | } |
810 | else | |
811 | { | |
ed8dad6b | 812 | tty_turn_off_insert (tty); |
fca177d4 | 813 | OUTPUT_IF (tty, tty->TS_delete_mode); |
08a24c47 | 814 | } |
daf01701 | 815 | |
fca177d4 | 816 | if (tty->TS_del_multi_chars) |
08a24c47 | 817 | { |
fca177d4 | 818 | buf = tparam (tty->TS_del_multi_chars, 0, 0, n); |
6548cf00 | 819 | OUTPUT1 (tty, buf); |
9ac0d9e0 | 820 | xfree (buf); |
08a24c47 JB |
821 | } |
822 | else | |
823 | for (i = 0; i < n; i++) | |
fca177d4 KL |
824 | OUTPUT1 (tty, tty->TS_del_char); |
825 | if (!tty->delete_in_insert_mode) | |
826 | OUTPUT_IF (tty, tty->TS_end_delete_mode); | |
08a24c47 JB |
827 | } |
828 | \f | |
da8e1115 KL |
829 | /* An implementation of ins_del_lines for termcap frames. */ |
830 | ||
ed8dad6b | 831 | static void |
385ed61f | 832 | tty_ins_del_lines (struct frame *f, int vpos, int n) |
3224dac1 | 833 | { |
3224dac1 KL |
834 | struct tty_display_info *tty = FRAME_TTY (f); |
835 | char *multi = n > 0 ? tty->TS_ins_multi_lines : tty->TS_del_multi_lines; | |
836 | char *single = n > 0 ? tty->TS_ins_line : tty->TS_del_line; | |
837 | char *scroll = n > 0 ? tty->TS_rev_scroll : tty->TS_fwd_scroll; | |
838 | ||
839 | register int i = n > 0 ? n : -n; | |
840 | register char *buf; | |
841 | ||
842 | /* If the lines below the insertion are being pushed | |
843 | into the end of the window, this is the same as clearing; | |
844 | and we know the lines are already clear, since the matching | |
845 | deletion has already been done. So can ignore this. */ | |
846 | /* If the lines below the deletion are blank lines coming | |
847 | out of the end of the window, don't bother, | |
848 | as there will be a matching inslines later that will flush them. */ | |
849 | if (FRAME_SCROLL_REGION_OK (f) | |
850 | && vpos + i >= tty->specified_window) | |
851 | return; | |
852 | if (!FRAME_MEMORY_BELOW_FRAME (f) | |
853 | && vpos + i >= FRAME_LINES (f)) | |
854 | return; | |
855 | ||
856 | if (multi) | |
08a24c47 | 857 | { |
6839f1e2 | 858 | raw_cursor_to (f, vpos, 0); |
ed8dad6b | 859 | tty_background_highlight (tty); |
3224dac1 KL |
860 | buf = tparam (multi, 0, 0, i); |
861 | OUTPUT (tty, buf); | |
862 | xfree (buf); | |
863 | } | |
864 | else if (single) | |
865 | { | |
6839f1e2 | 866 | raw_cursor_to (f, vpos, 0); |
ed8dad6b | 867 | tty_background_highlight (tty); |
3224dac1 KL |
868 | while (--i >= 0) |
869 | OUTPUT (tty, single); | |
870 | if (tty->TF_teleray) | |
871 | curX (tty) = 0; | |
08a24c47 | 872 | } |
08a24c47 JB |
873 | else |
874 | { | |
ed8dad6b | 875 | tty_set_scroll_region (f, vpos, tty->specified_window); |
3224dac1 | 876 | if (n < 0) |
6839f1e2 | 877 | raw_cursor_to (f, tty->specified_window - 1, 0); |
08a24c47 | 878 | else |
6839f1e2 | 879 | raw_cursor_to (f, vpos, 0); |
ed8dad6b | 880 | tty_background_highlight (tty); |
3224dac1 KL |
881 | while (--i >= 0) |
882 | OUTPUTL (tty, scroll, tty->specified_window - vpos); | |
ed8dad6b | 883 | tty_set_scroll_region (f, 0, tty->specified_window); |
3224dac1 KL |
884 | } |
885 | ||
886 | if (!FRAME_SCROLL_REGION_OK (f) | |
887 | && FRAME_MEMORY_BELOW_FRAME (f) | |
888 | && n < 0) | |
889 | { | |
385ed61f KL |
890 | cursor_to (f, FRAME_LINES (f) + n, 0); |
891 | clear_to_end (f); | |
08a24c47 JB |
892 | } |
893 | } | |
894 | \f | |
895 | /* Compute cost of sending "str", in characters, | |
896 | not counting any line-dependent padding. */ | |
897 | ||
898 | int | |
6839f1e2 | 899 | string_cost (char *str) |
08a24c47 JB |
900 | { |
901 | cost = 0; | |
902 | if (str) | |
903 | tputs (str, 0, evalcost); | |
904 | return cost; | |
905 | } | |
906 | ||
907 | /* Compute cost of sending "str", in characters, | |
908 | counting any line-dependent padding at one line. */ | |
909 | ||
910 | static int | |
6839f1e2 | 911 | string_cost_one_line (char *str) |
08a24c47 JB |
912 | { |
913 | cost = 0; | |
914 | if (str) | |
915 | tputs (str, 1, evalcost); | |
916 | return cost; | |
917 | } | |
918 | ||
919 | /* Compute per line amount of line-dependent padding, | |
920 | in tenths of characters. */ | |
921 | ||
922 | int | |
6839f1e2 | 923 | per_line_cost (char *str) |
08a24c47 JB |
924 | { |
925 | cost = 0; | |
926 | if (str) | |
927 | tputs (str, 0, evalcost); | |
928 | cost = - cost; | |
929 | if (str) | |
930 | tputs (str, 10, evalcost); | |
931 | return cost; | |
932 | } | |
933 | ||
934 | #ifndef old | |
935 | /* char_ins_del_cost[n] is cost of inserting N characters. | |
8dd0c7cb | 936 | char_ins_del_cost[-n] is cost of deleting N characters. |
9882535b | 937 | The length of this vector is based on max_frame_cols. */ |
08a24c47 JB |
938 | |
939 | int *char_ins_del_vector; | |
940 | ||
9882535b | 941 | #define char_ins_del_cost(f) (&char_ins_del_vector[FRAME_COLS ((f))]) |
08a24c47 JB |
942 | #endif |
943 | ||
944 | /* ARGSUSED */ | |
945 | static void | |
6839f1e2 | 946 | calculate_ins_del_char_costs (struct frame *f) |
08a24c47 | 947 | { |
28d7d09f | 948 | struct tty_display_info *tty = FRAME_TTY (f); |
08a24c47 JB |
949 | int ins_startup_cost, del_startup_cost; |
950 | int ins_cost_per_char, del_cost_per_char; | |
951 | register int i; | |
952 | register int *p; | |
953 | ||
fca177d4 | 954 | if (tty->TS_ins_multi_chars) |
08a24c47 JB |
955 | { |
956 | ins_cost_per_char = 0; | |
fca177d4 | 957 | ins_startup_cost = string_cost_one_line (tty->TS_ins_multi_chars); |
08a24c47 | 958 | } |
fca177d4 KL |
959 | else if (tty->TS_ins_char || tty->TS_pad_inserted_char |
960 | || (tty->TS_insert_mode && tty->TS_end_insert_mode)) | |
08a24c47 | 961 | { |
fca177d4 KL |
962 | ins_startup_cost = (30 * (string_cost (tty->TS_insert_mode) |
963 | + string_cost (tty->TS_end_insert_mode))) / 100; | |
964 | ins_cost_per_char = (string_cost_one_line (tty->TS_ins_char) | |
965 | + string_cost_one_line (tty->TS_pad_inserted_char)); | |
08a24c47 JB |
966 | } |
967 | else | |
968 | { | |
969 | ins_startup_cost = 9999; | |
970 | ins_cost_per_char = 0; | |
971 | } | |
972 | ||
fca177d4 | 973 | if (tty->TS_del_multi_chars) |
08a24c47 JB |
974 | { |
975 | del_cost_per_char = 0; | |
fca177d4 | 976 | del_startup_cost = string_cost_one_line (tty->TS_del_multi_chars); |
08a24c47 | 977 | } |
fca177d4 | 978 | else if (tty->TS_del_char) |
08a24c47 | 979 | { |
fca177d4 KL |
980 | del_startup_cost = (string_cost (tty->TS_delete_mode) |
981 | + string_cost (tty->TS_end_delete_mode)); | |
982 | if (tty->delete_in_insert_mode) | |
08a24c47 | 983 | del_startup_cost /= 2; |
fca177d4 | 984 | del_cost_per_char = string_cost_one_line (tty->TS_del_char); |
08a24c47 JB |
985 | } |
986 | else | |
987 | { | |
988 | del_startup_cost = 9999; | |
989 | del_cost_per_char = 0; | |
990 | } | |
991 | ||
992 | /* Delete costs are at negative offsets */ | |
fca177d4 KL |
993 | p = &char_ins_del_cost (f)[0]; |
994 | for (i = FRAME_COLS (f); --i >= 0;) | |
08a24c47 JB |
995 | *--p = (del_startup_cost += del_cost_per_char); |
996 | ||
997 | /* Doing nothing is free */ | |
fca177d4 | 998 | p = &char_ins_del_cost (f)[0]; |
08a24c47 JB |
999 | *p++ = 0; |
1000 | ||
1001 | /* Insert costs are at positive offsets */ | |
fca177d4 | 1002 | for (i = FRAME_COLS (f); --i >= 0;) |
08a24c47 JB |
1003 | *p++ = (ins_startup_cost += ins_cost_per_char); |
1004 | } | |
1005 | ||
dfcf069d | 1006 | void |
6839f1e2 | 1007 | calculate_costs (struct frame *frame) |
08a24c47 | 1008 | { |
9f732a77 | 1009 | FRAME_COST_BAUD_RATE (frame) = baud_rate; |
08a24c47 | 1010 | |
28d440ab | 1011 | if (FRAME_TERMCAP_P (frame)) |
daf01701 KL |
1012 | { |
1013 | struct tty_display_info *tty = FRAME_TTY (frame); | |
1014 | register char *f = (tty->TS_set_scroll_region | |
1015 | ? tty->TS_set_scroll_region | |
1016 | : tty->TS_set_scroll_region_1); | |
08a24c47 | 1017 | |
daf01701 | 1018 | FRAME_SCROLL_REGION_COST (frame) = string_cost (f); |
08a24c47 | 1019 | |
daf01701 | 1020 | tty->costs_set = 1; |
08a24c47 | 1021 | |
daf01701 KL |
1022 | /* These variables are only used for terminal stuff. They are |
1023 | allocated once for the terminal frame of X-windows emacs, but not | |
1024 | used afterwards. | |
8dd0c7cb | 1025 | |
daf01701 KL |
1026 | char_ins_del_vector (i.e., char_ins_del_cost) isn't used because |
1027 | X turns off char_ins_del_ok. */ | |
08a24c47 | 1028 | |
daf01701 KL |
1029 | max_frame_lines = max (max_frame_lines, FRAME_LINES (frame)); |
1030 | max_frame_cols = max (max_frame_cols, FRAME_COLS (frame)); | |
08a24c47 | 1031 | |
daf01701 KL |
1032 | if (char_ins_del_vector != 0) |
1033 | char_ins_del_vector | |
1034 | = (int *) xrealloc (char_ins_del_vector, | |
1035 | (sizeof (int) | |
1036 | + 2 * max_frame_cols * sizeof (int))); | |
1037 | else | |
1038 | char_ins_del_vector | |
1039 | = (int *) xmalloc (sizeof (int) | |
1040 | + 2 * max_frame_cols * sizeof (int)); | |
08a24c47 | 1041 | |
daf01701 KL |
1042 | bzero (char_ins_del_vector, (sizeof (int) |
1043 | + 2 * max_frame_cols * sizeof (int))); | |
1044 | ||
1045 | ||
1046 | if (f && (!tty->TS_ins_line && !tty->TS_del_line)) | |
1047 | do_line_insertion_deletion_costs (frame, | |
1048 | tty->TS_rev_scroll, tty->TS_ins_multi_lines, | |
1049 | tty->TS_fwd_scroll, tty->TS_del_multi_lines, | |
1050 | f, f, 1); | |
1051 | else | |
1052 | do_line_insertion_deletion_costs (frame, | |
1053 | tty->TS_ins_line, tty->TS_ins_multi_lines, | |
1054 | tty->TS_del_line, tty->TS_del_multi_lines, | |
1055 | 0, 0, 1); | |
1056 | ||
1057 | calculate_ins_del_char_costs (frame); | |
1058 | ||
1059 | /* Don't use TS_repeat if its padding is worse than sending the chars */ | |
1060 | if (tty->TS_repeat && per_line_cost (tty->TS_repeat) * baud_rate < 9000) | |
1061 | tty->RPov = string_cost (tty->TS_repeat); | |
1062 | else | |
1063 | tty->RPov = FRAME_COLS (frame) * 2; | |
08a24c47 | 1064 | |
daf01701 KL |
1065 | cmcostinit (FRAME_TTY (frame)); /* set up cursor motion costs */ |
1066 | } | |
08a24c47 JB |
1067 | } |
1068 | \f | |
a796ac82 JB |
1069 | struct fkey_table { |
1070 | char *cap, *name; | |
1071 | }; | |
1072 | ||
01d8deb0 ER |
1073 | /* Termcap capability names that correspond directly to X keysyms. |
1074 | Some of these (marked "terminfo") aren't supplied by old-style | |
1075 | (Berkeley) termcap entries. They're listed in X keysym order; | |
1076 | except we put the keypad keys first, so that if they clash with | |
1077 | other keys (as on the IBM PC keyboard) they get overridden. | |
1078 | */ | |
1079 | ||
a168702a GM |
1080 | static struct fkey_table keys[] = |
1081 | { | |
8103ad1a PJ |
1082 | {"kh", "home"}, /* termcap */ |
1083 | {"kl", "left"}, /* termcap */ | |
1084 | {"ku", "up"}, /* termcap */ | |
1085 | {"kr", "right"}, /* termcap */ | |
1086 | {"kd", "down"}, /* termcap */ | |
1087 | {"%8", "prior"}, /* terminfo */ | |
1088 | {"%5", "next"}, /* terminfo */ | |
1089 | {"@7", "end"}, /* terminfo */ | |
1090 | {"@1", "begin"}, /* terminfo */ | |
1091 | {"*6", "select"}, /* terminfo */ | |
1092 | {"%9", "print"}, /* terminfo */ | |
1093 | {"@4", "execute"}, /* terminfo --- actually the `command' key */ | |
01d8deb0 ER |
1094 | /* |
1095 | * "insert" --- see below | |
1096 | */ | |
8103ad1a PJ |
1097 | {"&8", "undo"}, /* terminfo */ |
1098 | {"%0", "redo"}, /* terminfo */ | |
1099 | {"%7", "menu"}, /* terminfo --- actually the `options' key */ | |
1100 | {"@0", "find"}, /* terminfo */ | |
1101 | {"@2", "cancel"}, /* terminfo */ | |
1102 | {"%1", "help"}, /* terminfo */ | |
01d8deb0 ER |
1103 | /* |
1104 | * "break" goes here, but can't be reliably intercepted with termcap | |
1105 | */ | |
8103ad1a | 1106 | {"&4", "reset"}, /* terminfo --- actually `restart' */ |
01d8deb0 ER |
1107 | /* |
1108 | * "system" and "user" --- no termcaps | |
1109 | */ | |
8103ad1a PJ |
1110 | {"kE", "clearline"}, /* terminfo */ |
1111 | {"kA", "insertline"}, /* terminfo */ | |
1112 | {"kL", "deleteline"}, /* terminfo */ | |
1113 | {"kI", "insertchar"}, /* terminfo */ | |
1114 | {"kD", "deletechar"}, /* terminfo */ | |
1115 | {"kB", "backtab"}, /* terminfo */ | |
01d8deb0 ER |
1116 | /* |
1117 | * "kp_backtab", "kp-space", "kp-tab" --- no termcaps | |
1118 | */ | |
8103ad1a | 1119 | {"@8", "kp-enter"}, /* terminfo */ |
01d8deb0 ER |
1120 | /* |
1121 | * "kp-f1", "kp-f2", "kp-f3" "kp-f4", | |
1122 | * "kp-multiply", "kp-add", "kp-separator", | |
1123 | * "kp-subtract", "kp-decimal", "kp-divide", "kp-0"; | |
1124 | * --- no termcaps for any of these. | |
1125 | */ | |
8103ad1a | 1126 | {"K4", "kp-1"}, /* terminfo */ |
01d8deb0 ER |
1127 | /* |
1128 | * "kp-2" --- no termcap | |
1129 | */ | |
8103ad1a | 1130 | {"K5", "kp-3"}, /* terminfo */ |
01d8deb0 ER |
1131 | /* |
1132 | * "kp-4" --- no termcap | |
1133 | */ | |
8103ad1a | 1134 | {"K2", "kp-5"}, /* terminfo */ |
01d8deb0 ER |
1135 | /* |
1136 | * "kp-6" --- no termcap | |
1137 | */ | |
8103ad1a | 1138 | {"K1", "kp-7"}, /* terminfo */ |
01d8deb0 ER |
1139 | /* |
1140 | * "kp-8" --- no termcap | |
1141 | */ | |
8103ad1a | 1142 | {"K3", "kp-9"}, /* terminfo */ |
01d8deb0 ER |
1143 | /* |
1144 | * "kp-equal" --- no termcap | |
1145 | */ | |
8103ad1a PJ |
1146 | {"k1", "f1"}, |
1147 | {"k2", "f2"}, | |
1148 | {"k3", "f3"}, | |
1149 | {"k4", "f4"}, | |
1150 | {"k5", "f5"}, | |
1151 | {"k6", "f6"}, | |
1152 | {"k7", "f7"}, | |
1153 | {"k8", "f8"}, | |
60ec7b7e DN |
1154 | {"k9", "f9"}, |
1155 | ||
1156 | {"&0", "S-cancel"}, /*shifted cancel key*/ | |
1157 | {"&9", "S-begin"}, /*shifted begin key*/ | |
1158 | {"*0", "S-find"}, /*shifted find key*/ | |
1159 | {"*1", "S-execute"}, /*shifted execute? actually shifted command key*/ | |
1160 | {"*4", "S-delete"}, /*shifted delete-character key*/ | |
1161 | {"*7", "S-end"}, /*shifted end key*/ | |
1162 | {"*8", "S-clearline"}, /*shifted clear-to end-of-line key*/ | |
1163 | {"#1", "S-help"}, /*shifted help key*/ | |
1164 | {"#2", "S-home"}, /*shifted home key*/ | |
1165 | {"#3", "S-insert"}, /*shifted insert-character key*/ | |
1166 | {"#4", "S-left"}, /*shifted left-arrow key*/ | |
1167 | {"%d", "S-menu"}, /*shifted menu? actually shifted options key*/ | |
1168 | {"%c", "S-next"}, /*shifted next key*/ | |
1169 | {"%e", "S-prior"}, /*shifted previous key*/ | |
1170 | {"%f", "S-print"}, /*shifted print key*/ | |
1171 | {"%g", "S-redo"}, /*shifted redo key*/ | |
1172 | {"%i", "S-right"}, /*shifted right-arrow key*/ | |
1173 | {"!3", "S-undo"} /*shifted undo key*/ | |
a796ac82 JB |
1174 | }; |
1175 | ||
e7cf0fa0 KL |
1176 | static char **term_get_fkeys_address; |
1177 | static KBOARD *term_get_fkeys_kboard; | |
f2a00342 | 1178 | static Lisp_Object term_get_fkeys_1 (); |
465db27b | 1179 | |
01d8deb0 | 1180 | /* Find the escape codes sent by the function keys for Vfunction_key_map. |
177c0ea7 | 1181 | This function scans the termcap function key sequence entries, and |
01d8deb0 ER |
1182 | adds entries to Vfunction_key_map for each function key it finds. */ |
1183 | ||
ed8dad6b | 1184 | static void |
e7cf0fa0 | 1185 | term_get_fkeys (address, kboard) |
5c2c7893 | 1186 | char **address; |
e7cf0fa0 | 1187 | KBOARD *kboard; |
f2a00342 RM |
1188 | { |
1189 | /* We run the body of the function (term_get_fkeys_1) and ignore all Lisp | |
1190 | errors during the call. The only errors should be from Fdefine_key | |
1191 | when given a key sequence containing an invalid prefix key. If the | |
1192 | termcap defines function keys which use a prefix that is already bound | |
1193 | to a command by the default bindings, we should silently ignore that | |
1194 | function key specification, rather than giving the user an error and | |
1195 | refusing to run at all on such a terminal. */ | |
1196 | ||
1197 | extern Lisp_Object Fidentity (); | |
e7cf0fa0 KL |
1198 | term_get_fkeys_address = address; |
1199 | term_get_fkeys_kboard = kboard; | |
f2a00342 RM |
1200 | internal_condition_case (term_get_fkeys_1, Qerror, Fidentity); |
1201 | } | |
1202 | ||
1203 | static Lisp_Object | |
1204 | term_get_fkeys_1 () | |
5c2c7893 | 1205 | { |
5c2c7893 JB |
1206 | int i; |
1207 | ||
e7cf0fa0 KL |
1208 | char **address = term_get_fkeys_address; |
1209 | KBOARD *kboard = term_get_fkeys_kboard; | |
1210 | ||
3e65092f RS |
1211 | /* This can happen if CANNOT_DUMP or with strange options. */ |
1212 | if (!initialized) | |
ac09dc1e | 1213 | kboard->Vlocal_function_key_map = Fmake_sparse_keymap (Qnil); |
3e65092f | 1214 | |
5c2c7893 JB |
1215 | for (i = 0; i < (sizeof (keys)/sizeof (keys[0])); i++) |
1216 | { | |
1217 | char *sequence = tgetstr (keys[i].cap, address); | |
1218 | if (sequence) | |
ac09dc1e | 1219 | Fdefine_key (kboard->Vlocal_function_key_map, build_string (sequence), |
f2a00342 RM |
1220 | Fmake_vector (make_number (1), |
1221 | intern (keys[i].name))); | |
5c2c7893 | 1222 | } |
a796ac82 JB |
1223 | |
1224 | /* The uses of the "k0" capability are inconsistent; sometimes it | |
1225 | describes F10, whereas othertimes it describes F0 and "k;" describes F10. | |
eb8c3be9 | 1226 | We will attempt to politely accommodate both systems by testing for |
a796ac82 JB |
1227 | "k;", and if it is present, assuming that "k0" denotes F0, otherwise F10. |
1228 | */ | |
1229 | { | |
1230 | char *k_semi = tgetstr ("k;", address); | |
1231 | char *k0 = tgetstr ("k0", address); | |
1232 | char *k0_name = "f10"; | |
1233 | ||
1234 | if (k_semi) | |
1235 | { | |
95c11956 SM |
1236 | if (k0) |
1237 | /* Define f0 first, so that f10 takes precedence in case the | |
1238 | key sequences happens to be the same. */ | |
ac09dc1e | 1239 | Fdefine_key (kboard->Vlocal_function_key_map, build_string (k0), |
95c11956 | 1240 | Fmake_vector (make_number (1), intern ("f0"))); |
ac09dc1e | 1241 | Fdefine_key (kboard->Vlocal_function_key_map, build_string (k_semi), |
f2a00342 | 1242 | Fmake_vector (make_number (1), intern ("f10"))); |
a796ac82 | 1243 | } |
95c11956 | 1244 | else if (k0) |
ac09dc1e | 1245 | Fdefine_key (kboard->Vlocal_function_key_map, build_string (k0), |
f2a00342 | 1246 | Fmake_vector (make_number (1), intern (k0_name))); |
a796ac82 | 1247 | } |
01d8deb0 ER |
1248 | |
1249 | /* Set up cookies for numbered function keys above f10. */ | |
1250 | { | |
1251 | char fcap[3], fkey[4]; | |
1252 | ||
fc4f24da | 1253 | fcap[0] = 'F'; fcap[2] = '\0'; |
01d8deb0 ER |
1254 | for (i = 11; i < 64; i++) |
1255 | { | |
1256 | if (i <= 19) | |
1257 | fcap[1] = '1' + i - 11; | |
1258 | else if (i <= 45) | |
b59ab95c | 1259 | fcap[1] = 'A' + i - 20; |
01d8deb0 | 1260 | else |
b59ab95c | 1261 | fcap[1] = 'a' + i - 46; |
01d8deb0 | 1262 | |
fc4f24da RS |
1263 | { |
1264 | char *sequence = tgetstr (fcap, address); | |
1265 | if (sequence) | |
1266 | { | |
465db27b | 1267 | sprintf (fkey, "f%d", i); |
ac09dc1e | 1268 | Fdefine_key (kboard->Vlocal_function_key_map, build_string (sequence), |
f2a00342 RM |
1269 | Fmake_vector (make_number (1), |
1270 | intern (fkey))); | |
fc4f24da RS |
1271 | } |
1272 | } | |
01d8deb0 ER |
1273 | } |
1274 | } | |
1275 | ||
1276 | /* | |
1277 | * Various mappings to try and get a better fit. | |
1278 | */ | |
1279 | { | |
fc4f24da RS |
1280 | #define CONDITIONAL_REASSIGN(cap1, cap2, sym) \ |
1281 | if (!tgetstr (cap1, address)) \ | |
1282 | { \ | |
1283 | char *sequence = tgetstr (cap2, address); \ | |
e7cf0fa0 | 1284 | if (sequence) \ |
ac09dc1e | 1285 | Fdefine_key (kboard->Vlocal_function_key_map, build_string (sequence), \ |
e7cf0fa0 KL |
1286 | Fmake_vector (make_number (1), \ |
1287 | intern (sym))); \ | |
fc4f24da | 1288 | } |
177c0ea7 | 1289 | |
01d8deb0 | 1290 | /* if there's no key_next keycap, map key_npage to `next' keysym */ |
27b61785 | 1291 | CONDITIONAL_REASSIGN ("%5", "kN", "next"); |
01d8deb0 | 1292 | /* if there's no key_prev keycap, map key_ppage to `previous' keysym */ |
381d11a1 | 1293 | CONDITIONAL_REASSIGN ("%8", "kP", "prior"); |
01d8deb0 | 1294 | /* if there's no key_dc keycap, map key_ic to `insert' keysym */ |
27b61785 | 1295 | CONDITIONAL_REASSIGN ("kD", "kI", "insert"); |
403c995b RS |
1296 | /* if there's no key_end keycap, map key_ll to 'end' keysym */ |
1297 | CONDITIONAL_REASSIGN ("@7", "kH", "end"); | |
0a7f697a KH |
1298 | |
1299 | /* IBM has their own non-standard dialect of terminfo. | |
1300 | If the standard name isn't found, try the IBM name. */ | |
1301 | CONDITIONAL_REASSIGN ("kB", "KO", "backtab"); | |
1302 | CONDITIONAL_REASSIGN ("@4", "kJ", "execute"); /* actually "action" */ | |
1303 | CONDITIONAL_REASSIGN ("@4", "kc", "execute"); /* actually "command" */ | |
1304 | CONDITIONAL_REASSIGN ("%7", "ki", "menu"); | |
1305 | CONDITIONAL_REASSIGN ("@7", "kw", "end"); | |
1306 | CONDITIONAL_REASSIGN ("F1", "k<", "f11"); | |
1307 | CONDITIONAL_REASSIGN ("F2", "k>", "f12"); | |
1308 | CONDITIONAL_REASSIGN ("%1", "kq", "help"); | |
1309 | CONDITIONAL_REASSIGN ("*6", "kU", "select"); | |
1dd40212 | 1310 | #undef CONDITIONAL_REASSIGN |
01d8deb0 | 1311 | } |
a168702a GM |
1312 | |
1313 | return Qnil; | |
5c2c7893 JB |
1314 | } |
1315 | ||
1316 | \f | |
a168702a GM |
1317 | /*********************************************************************** |
1318 | Character Display Information | |
1319 | ***********************************************************************/ | |
1320 | ||
1321 | static void append_glyph P_ ((struct it *)); | |
f46c2aff | 1322 | static void produce_stretch_glyph P_ ((struct it *)); |
a168702a GM |
1323 | |
1324 | ||
1325 | /* Append glyphs to IT's glyph_row. Called from produce_glyphs for | |
1326 | terminal frames if IT->glyph_row != NULL. IT->c is the character | |
1327 | for which to produce glyphs; IT->face_id contains the character's | |
1328 | face. Padding glyphs are appended if IT->c has a IT->pixel_width > | |
1329 | 1. */ | |
177c0ea7 | 1330 | |
a168702a GM |
1331 | static void |
1332 | append_glyph (it) | |
1333 | struct it *it; | |
1334 | { | |
1335 | struct glyph *glyph, *end; | |
1336 | int i; | |
1337 | ||
1338 | xassert (it->glyph_row); | |
1339 | glyph = (it->glyph_row->glyphs[it->area] | |
1340 | + it->glyph_row->used[it->area]); | |
1341 | end = it->glyph_row->glyphs[1 + it->area]; | |
1342 | ||
177c0ea7 JB |
1343 | for (i = 0; |
1344 | i < it->pixel_width && glyph < end; | |
a168702a GM |
1345 | ++i) |
1346 | { | |
1347 | glyph->type = CHAR_GLYPH; | |
d13f3e2e | 1348 | glyph->pixel_width = 1; |
32de38e4 KH |
1349 | glyph->u.ch = it->c; |
1350 | glyph->face_id = it->face_id; | |
1351 | glyph->padding_p = i > 0; | |
a168702a GM |
1352 | glyph->charpos = CHARPOS (it->position); |
1353 | glyph->object = it->object; | |
177c0ea7 | 1354 | |
a168702a GM |
1355 | ++it->glyph_row->used[it->area]; |
1356 | ++glyph; | |
1357 | } | |
1358 | } | |
1359 | ||
1360 | ||
b50fe468 RS |
1361 | /* Produce glyphs for the display element described by IT. *IT |
1362 | specifies what we want to produce a glyph for (character, image, ...), | |
1363 | and where in the glyph matrix we currently are (glyph row and hpos). | |
1364 | produce_glyphs fills in output fields of *IT with information such as the | |
1365 | pixel width and height of a character, and maybe output actual glyphs at | |
a168702a | 1366 | the same time if IT->glyph_row is non-null. See the explanation of |
b50fe468 RS |
1367 | struct display_iterator in dispextern.h for an overview. |
1368 | ||
1369 | produce_glyphs also stores the result of glyph width, ascent | |
1370 | etc. computations in *IT. | |
1371 | ||
1372 | IT->glyph_row may be null, in which case produce_glyphs does not | |
1373 | actually fill in the glyphs. This is used in the move_* functions | |
1374 | in xdisp.c for text width and height computations. | |
1375 | ||
1376 | Callers usually don't call produce_glyphs directly; | |
1377 | instead they use the macro PRODUCE_GLYPHS. */ | |
a168702a | 1378 | |
177c0ea7 | 1379 | void |
a168702a GM |
1380 | produce_glyphs (it) |
1381 | struct it *it; | |
1382 | { | |
1383 | /* If a hook is installed, let it do the work. */ | |
1384 | xassert (it->what == IT_CHARACTER | |
c7cba11d | 1385 | || it->what == IT_COMPOSITION |
a168702a | 1386 | || it->what == IT_STRETCH); |
177c0ea7 | 1387 | |
f46c2aff KS |
1388 | if (it->what == IT_STRETCH) |
1389 | { | |
1390 | produce_stretch_glyph (it); | |
1391 | goto done; | |
1392 | } | |
1393 | ||
c7cba11d KH |
1394 | /* Nothing but characters are supported on terminal frames. For a |
1395 | composition sequence, it->c is the first character of the | |
1396 | sequence. */ | |
1397 | xassert (it->what == IT_CHARACTER | |
1398 | || it->what == IT_COMPOSITION); | |
a168702a GM |
1399 | |
1400 | if (it->c >= 040 && it->c < 0177) | |
1401 | { | |
1402 | it->pixel_width = it->nglyphs = 1; | |
1403 | if (it->glyph_row) | |
1404 | append_glyph (it); | |
1405 | } | |
1406 | else if (it->c == '\n') | |
1407 | it->pixel_width = it->nglyphs = 0; | |
1408 | else if (it->c == '\t') | |
1409 | { | |
2efdbcdd | 1410 | int absolute_x = (it->current_x |
a168702a | 1411 | + it->continuation_lines_width); |
177c0ea7 JB |
1412 | int next_tab_x |
1413 | = (((1 + absolute_x + it->tab_width - 1) | |
a168702a GM |
1414 | / it->tab_width) |
1415 | * it->tab_width); | |
1416 | int nspaces; | |
1417 | ||
1418 | /* If part of the TAB has been displayed on the previous line | |
1419 | which is continued now, continuation_lines_width will have | |
1420 | been incremented already by the part that fitted on the | |
1421 | continued line. So, we will get the right number of spaces | |
1422 | here. */ | |
1423 | nspaces = next_tab_x - absolute_x; | |
177c0ea7 | 1424 | |
a168702a GM |
1425 | if (it->glyph_row) |
1426 | { | |
1427 | int n = nspaces; | |
177c0ea7 | 1428 | |
a168702a GM |
1429 | it->c = ' '; |
1430 | it->pixel_width = it->len = 1; | |
177c0ea7 | 1431 | |
a168702a GM |
1432 | while (n--) |
1433 | append_glyph (it); | |
177c0ea7 | 1434 | |
a168702a GM |
1435 | it->c = '\t'; |
1436 | } | |
1437 | ||
1438 | it->pixel_width = nspaces; | |
1439 | it->nglyphs = nspaces; | |
1440 | } | |
add44890 EZ |
1441 | else if (SINGLE_BYTE_CHAR_P (it->c)) |
1442 | { | |
cf872af5 | 1443 | /* Coming here means that it->c is from display table, thus we |
add44890 EZ |
1444 | must send the code as is to the terminal. Although there's |
1445 | no way to know how many columns it occupies on a screen, it | |
1446 | is a good assumption that a single byte code has 1-column | |
1447 | width. */ | |
1448 | it->pixel_width = it->nglyphs = 1; | |
1449 | if (it->glyph_row) | |
1450 | append_glyph (it); | |
1451 | } | |
a168702a GM |
1452 | else |
1453 | { | |
c7cba11d KH |
1454 | /* A multi-byte character. The display width is fixed for all |
1455 | characters of the set. Some of the glyphs may have to be | |
1456 | ignored because they are already displayed in a continued | |
1457 | line. */ | |
a168702a GM |
1458 | int charset = CHAR_CHARSET (it->c); |
1459 | ||
c7cba11d | 1460 | it->pixel_width = CHARSET_WIDTH (charset); |
a168702a | 1461 | it->nglyphs = it->pixel_width; |
177c0ea7 | 1462 | |
a168702a GM |
1463 | if (it->glyph_row) |
1464 | append_glyph (it); | |
1465 | } | |
1466 | ||
f46c2aff | 1467 | done: |
177c0ea7 | 1468 | /* Advance current_x by the pixel width as a convenience for |
a168702a GM |
1469 | the caller. */ |
1470 | if (it->area == TEXT_AREA) | |
1471 | it->current_x += it->pixel_width; | |
cfe8a05e GM |
1472 | it->ascent = it->max_ascent = it->phys_ascent = it->max_phys_ascent = 0; |
1473 | it->descent = it->max_descent = it->phys_descent = it->max_phys_descent = 1; | |
a168702a GM |
1474 | } |
1475 | ||
1476 | ||
f46c2aff KS |
1477 | /* Produce a stretch glyph for iterator IT. IT->object is the value |
1478 | of the glyph property displayed. The value must be a list | |
1479 | `(space KEYWORD VALUE ...)' with the following KEYWORD/VALUE pairs | |
1480 | being recognized: | |
1481 | ||
1482 | 1. `:width WIDTH' specifies that the space should be WIDTH * | |
1483 | canonical char width wide. WIDTH may be an integer or floating | |
1484 | point number. | |
1485 | ||
1486 | 2. `:align-to HPOS' specifies that the space should be wide enough | |
1487 | to reach HPOS, a value in canonical character units. */ | |
1488 | ||
1489 | static void | |
1490 | produce_stretch_glyph (it) | |
1491 | struct it *it; | |
1492 | { | |
1493 | /* (space :width WIDTH ...) */ | |
1494 | Lisp_Object prop, plist; | |
1495 | int width = 0, align_to = -1; | |
1496 | int zero_width_ok_p = 0; | |
1497 | double tem; | |
1498 | ||
1499 | /* List should start with `space'. */ | |
1500 | xassert (CONSP (it->object) && EQ (XCAR (it->object), Qspace)); | |
1501 | plist = XCDR (it->object); | |
1502 | ||
1503 | /* Compute the width of the stretch. */ | |
1504 | if ((prop = Fplist_get (plist, QCwidth), !NILP (prop)) | |
1505 | && calc_pixel_width_or_height (&tem, it, prop, 0, 1, 0)) | |
1506 | { | |
1507 | /* Absolute width `:width WIDTH' specified and valid. */ | |
1508 | zero_width_ok_p = 1; | |
1509 | width = (int)(tem + 0.5); | |
1510 | } | |
1511 | else if ((prop = Fplist_get (plist, QCalign_to), !NILP (prop)) | |
1512 | && calc_pixel_width_or_height (&tem, it, prop, 0, 1, &align_to)) | |
1513 | { | |
1514 | if (it->glyph_row == NULL || !it->glyph_row->mode_line_p) | |
feef4f84 | 1515 | align_to = (align_to < 0 |
f46c2aff KS |
1516 | ? 0 |
1517 | : align_to - window_box_left_offset (it->w, TEXT_AREA)); | |
1518 | else if (align_to < 0) | |
1519 | align_to = window_box_left_offset (it->w, TEXT_AREA); | |
1520 | width = max (0, (int)(tem + 0.5) + align_to - it->current_x); | |
1521 | zero_width_ok_p = 1; | |
1522 | } | |
1523 | else | |
1524 | /* Nothing specified -> width defaults to canonical char width. */ | |
1525 | width = FRAME_COLUMN_WIDTH (it->f); | |
1526 | ||
1527 | if (width <= 0 && (width < 0 || !zero_width_ok_p)) | |
1528 | width = 1; | |
1529 | ||
1530 | if (width > 0 && it->glyph_row) | |
1531 | { | |
1532 | Lisp_Object o_object = it->object; | |
1533 | Lisp_Object object = it->stack[it->sp - 1].string; | |
1534 | int n = width; | |
1535 | int c = it->c; | |
1536 | ||
1537 | if (!STRINGP (object)) | |
1538 | object = it->w->buffer; | |
1539 | it->object = object; | |
1540 | it->c = ' '; | |
1541 | it->pixel_width = it->len = 1; | |
1542 | while (n--) | |
1543 | append_glyph (it); | |
1544 | it->object = o_object; | |
1545 | it->c = c; | |
1546 | } | |
1547 | it->pixel_width = width; | |
1548 | it->nglyphs = width; | |
1549 | } | |
1550 | ||
1551 | ||
a168702a GM |
1552 | /* Get information about special display element WHAT in an |
1553 | environment described by IT. WHAT is one of IT_TRUNCATION or | |
1554 | IT_CONTINUATION. Maybe produce glyphs for WHAT if IT has a | |
1555 | non-null glyph_row member. This function ensures that fields like | |
1556 | face_id, c, len of IT are left untouched. */ | |
1557 | ||
1558 | void | |
1559 | produce_special_glyphs (it, what) | |
1560 | struct it *it; | |
1561 | enum display_element_type what; | |
1562 | { | |
1563 | struct it temp_it; | |
072d84a6 | 1564 | GLYPH glyph; |
177c0ea7 | 1565 | |
a168702a GM |
1566 | temp_it = *it; |
1567 | temp_it.dp = NULL; | |
1568 | temp_it.what = IT_CHARACTER; | |
1569 | temp_it.len = 1; | |
7c752c80 | 1570 | temp_it.object = make_number (0); |
a168702a GM |
1571 | bzero (&temp_it.current, sizeof temp_it.current); |
1572 | ||
1573 | if (what == IT_CONTINUATION) | |
1574 | { | |
1575 | /* Continuation glyph. */ | |
1576 | if (it->dp | |
1577 | && INTEGERP (DISP_CONTINUE_GLYPH (it->dp)) | |
1578 | && GLYPH_CHAR_VALID_P (XINT (DISP_CONTINUE_GLYPH (it->dp)))) | |
1579 | { | |
072d84a6 RS |
1580 | glyph = XINT (DISP_CONTINUE_GLYPH (it->dp)); |
1581 | glyph = spec_glyph_lookup_face (XWINDOW (it->window), glyph); | |
a168702a GM |
1582 | } |
1583 | else | |
072d84a6 | 1584 | glyph = '\\'; |
a168702a GM |
1585 | } |
1586 | else if (what == IT_TRUNCATION) | |
1587 | { | |
1588 | /* Truncation glyph. */ | |
1589 | if (it->dp | |
1590 | && INTEGERP (DISP_TRUNC_GLYPH (it->dp)) | |
1591 | && GLYPH_CHAR_VALID_P (XINT (DISP_TRUNC_GLYPH (it->dp)))) | |
1592 | { | |
072d84a6 RS |
1593 | glyph = XINT (DISP_TRUNC_GLYPH (it->dp)); |
1594 | glyph = spec_glyph_lookup_face (XWINDOW (it->window), glyph); | |
a168702a GM |
1595 | } |
1596 | else | |
072d84a6 | 1597 | glyph = '$'; |
a168702a GM |
1598 | } |
1599 | else | |
1600 | abort (); | |
072d84a6 RS |
1601 | |
1602 | temp_it.c = FAST_GLYPH_CHAR (glyph); | |
1603 | temp_it.face_id = FAST_GLYPH_FACE (glyph); | |
1604 | temp_it.len = CHAR_BYTES (temp_it.c); | |
1605 | ||
1606 | produce_glyphs (&temp_it); | |
1607 | it->pixel_width = temp_it.pixel_width; | |
1608 | it->nglyphs = temp_it.pixel_width; | |
a168702a GM |
1609 | } |
1610 | ||
1611 | ||
a168702a GM |
1612 | \f |
1613 | /*********************************************************************** | |
1614 | Faces | |
1615 | ***********************************************************************/ | |
1616 | ||
4e6ba4a4 GM |
1617 | /* Value is non-zero if attribute ATTR may be used. ATTR should be |
1618 | one of the enumerators from enum no_color_bit, or a bit set built | |
1619 | from them. Some display attributes may not be used together with | |
1620 | color; the termcap capability `NC' specifies which ones. */ | |
1621 | ||
fca177d4 KL |
1622 | #define MAY_USE_WITH_COLORS_P(tty, ATTR) \ |
1623 | (tty->TN_max_colors > 0 \ | |
1624 | ? (tty->TN_no_color_video & (ATTR)) == 0 \ | |
1625 | : 1) | |
a168702a | 1626 | |
072d84a6 RS |
1627 | /* Turn appearances of face FACE_ID on tty frame F on. |
1628 | FACE_ID is a realized face ID number, in the face cache. */ | |
a168702a GM |
1629 | |
1630 | static void | |
1631 | turn_on_face (f, face_id) | |
1632 | struct frame *f; | |
1633 | int face_id; | |
1634 | { | |
1635 | struct face *face = FACE_FROM_ID (f, face_id); | |
86a7d192 GM |
1636 | long fg = face->foreground; |
1637 | long bg = face->background; | |
28d7d09f | 1638 | struct tty_display_info *tty = FRAME_TTY (f); |
a168702a | 1639 | |
86a7d192 GM |
1640 | /* Do this first because TS_end_standout_mode may be the same |
1641 | as TS_exit_attribute_mode, which turns all appearances off. */ | |
fca177d4 | 1642 | if (MAY_USE_WITH_COLORS_P (tty, NC_REVERSE)) |
86a7d192 | 1643 | { |
fca177d4 | 1644 | if (tty->TN_max_colors > 0) |
86a7d192 GM |
1645 | { |
1646 | if (fg >= 0 && bg >= 0) | |
1647 | { | |
1648 | /* If the terminal supports colors, we can set them | |
1649 | below without using reverse video. The face's fg | |
1650 | and bg colors are set as they should appear on | |
1651 | the screen, i.e. they take the inverse-video'ness | |
1652 | of the face already into account. */ | |
1653 | } | |
1654 | else if (inverse_video) | |
1655 | { | |
1656 | if (fg == FACE_TTY_DEFAULT_FG_COLOR | |
1657 | || bg == FACE_TTY_DEFAULT_BG_COLOR) | |
ed8dad6b | 1658 | tty_toggle_highlight (tty); |
86a7d192 GM |
1659 | } |
1660 | else | |
1661 | { | |
1662 | if (fg == FACE_TTY_DEFAULT_BG_COLOR | |
1663 | || bg == FACE_TTY_DEFAULT_FG_COLOR) | |
ed8dad6b | 1664 | tty_toggle_highlight (tty); |
86a7d192 GM |
1665 | } |
1666 | } | |
1667 | else | |
1668 | { | |
1669 | /* If we can't display colors, use reverse video | |
1670 | if the face specifies that. */ | |
37526b42 GM |
1671 | if (inverse_video) |
1672 | { | |
1673 | if (fg == FACE_TTY_DEFAULT_FG_COLOR | |
1674 | || bg == FACE_TTY_DEFAULT_BG_COLOR) | |
ed8dad6b | 1675 | tty_toggle_highlight (tty); |
37526b42 GM |
1676 | } |
1677 | else | |
1678 | { | |
1679 | if (fg == FACE_TTY_DEFAULT_BG_COLOR | |
1680 | || bg == FACE_TTY_DEFAULT_FG_COLOR) | |
ed8dad6b | 1681 | tty_toggle_highlight (tty); |
37526b42 | 1682 | } |
86a7d192 GM |
1683 | } |
1684 | } | |
a168702a GM |
1685 | |
1686 | if (face->tty_bold_p) | |
4e6ba4a4 | 1687 | { |
fca177d4 KL |
1688 | if (MAY_USE_WITH_COLORS_P (tty, NC_BOLD)) |
1689 | OUTPUT1_IF (tty, tty->TS_enter_bold_mode); | |
4e6ba4a4 | 1690 | } |
a168702a | 1691 | else if (face->tty_dim_p) |
fca177d4 KL |
1692 | if (MAY_USE_WITH_COLORS_P (tty, NC_DIM)) |
1693 | OUTPUT1_IF (tty, tty->TS_enter_dim_mode); | |
a168702a GM |
1694 | |
1695 | /* Alternate charset and blinking not yet used. */ | |
4e6ba4a4 | 1696 | if (face->tty_alt_charset_p |
fca177d4 KL |
1697 | && MAY_USE_WITH_COLORS_P (tty, NC_ALT_CHARSET)) |
1698 | OUTPUT1_IF (tty, tty->TS_enter_alt_charset_mode); | |
a168702a | 1699 | |
4e6ba4a4 | 1700 | if (face->tty_blinking_p |
fca177d4 KL |
1701 | && MAY_USE_WITH_COLORS_P (tty, NC_BLINK)) |
1702 | OUTPUT1_IF (tty, tty->TS_enter_blink_mode); | |
a168702a | 1703 | |
fca177d4 KL |
1704 | if (face->tty_underline_p && MAY_USE_WITH_COLORS_P (tty, NC_UNDERLINE)) |
1705 | OUTPUT1_IF (tty, tty->TS_enter_underline_mode); | |
a168702a | 1706 | |
fca177d4 | 1707 | if (tty->TN_max_colors > 0) |
a168702a | 1708 | { |
753d161b | 1709 | char *ts, *p; |
177c0ea7 | 1710 | |
fbf34973 | 1711 | ts = tty->standout_mode ? tty->TS_set_background : tty->TS_set_foreground; |
753d161b | 1712 | if (fg >= 0 && ts) |
a168702a | 1713 | { |
fbf34973 | 1714 | p = tparam (ts, NULL, 0, (int) fg); |
6548cf00 | 1715 | OUTPUT (tty, p); |
a168702a GM |
1716 | xfree (p); |
1717 | } | |
1718 | ||
fbf34973 | 1719 | ts = tty->standout_mode ? tty->TS_set_foreground : tty->TS_set_background; |
753d161b | 1720 | if (bg >= 0 && ts) |
a168702a | 1721 | { |
fbf34973 | 1722 | p = tparam (ts, NULL, 0, (int) bg); |
6548cf00 | 1723 | OUTPUT (tty, p); |
a168702a GM |
1724 | xfree (p); |
1725 | } | |
1726 | } | |
1727 | } | |
177c0ea7 | 1728 | |
a168702a GM |
1729 | |
1730 | /* Turn off appearances of face FACE_ID on tty frame F. */ | |
1731 | ||
1732 | static void | |
1733 | turn_off_face (f, face_id) | |
1734 | struct frame *f; | |
1735 | int face_id; | |
1736 | { | |
1737 | struct face *face = FACE_FROM_ID (f, face_id); | |
28d7d09f | 1738 | struct tty_display_info *tty = FRAME_TTY (f); |
a168702a GM |
1739 | |
1740 | xassert (face != NULL); | |
1741 | ||
fca177d4 | 1742 | if (tty->TS_exit_attribute_mode) |
a168702a GM |
1743 | { |
1744 | /* Capability "me" will turn off appearance modes double-bright, | |
1745 | half-bright, reverse-video, standout, underline. It may or | |
1746 | may not turn off alt-char-mode. */ | |
1747 | if (face->tty_bold_p | |
1748 | || face->tty_dim_p | |
1749 | || face->tty_reverse_p | |
1750 | || face->tty_alt_charset_p | |
1751 | || face->tty_blinking_p | |
1752 | || face->tty_underline_p) | |
65aa5e85 | 1753 | { |
fca177d4 KL |
1754 | OUTPUT1_IF (tty, tty->TS_exit_attribute_mode); |
1755 | if (strcmp (tty->TS_exit_attribute_mode, tty->TS_end_standout_mode) == 0) | |
1756 | tty->standout_mode = 0; | |
65aa5e85 | 1757 | } |
a168702a GM |
1758 | |
1759 | if (face->tty_alt_charset_p) | |
fca177d4 | 1760 | OUTPUT_IF (tty, tty->TS_exit_alt_charset_mode); |
a168702a GM |
1761 | } |
1762 | else | |
1763 | { | |
1764 | /* If we don't have "me" we can only have those appearances | |
1765 | that have exit sequences defined. */ | |
1766 | if (face->tty_alt_charset_p) | |
fca177d4 | 1767 | OUTPUT_IF (tty, tty->TS_exit_alt_charset_mode); |
a168702a | 1768 | |
54800acb | 1769 | if (face->tty_underline_p) |
fca177d4 | 1770 | OUTPUT_IF (tty, tty->TS_exit_underline_mode); |
a168702a GM |
1771 | } |
1772 | ||
1773 | /* Switch back to default colors. */ | |
fca177d4 | 1774 | if (tty->TN_max_colors > 0 |
f9d2fdc4 EZ |
1775 | && ((face->foreground != FACE_TTY_DEFAULT_COLOR |
1776 | && face->foreground != FACE_TTY_DEFAULT_FG_COLOR) | |
1777 | || (face->background != FACE_TTY_DEFAULT_COLOR | |
1778 | && face->background != FACE_TTY_DEFAULT_BG_COLOR))) | |
fca177d4 | 1779 | OUTPUT1_IF (tty, tty->TS_orig_pair); |
a168702a | 1780 | } |
177c0ea7 JB |
1781 | |
1782 | ||
b63a55ac MB |
1783 | /* Return non-zero if the terminal on frame F supports all of the |
1784 | capabilities in CAPS simultaneously, with foreground and background | |
1785 | colors FG and BG. */ | |
1786 | ||
4a8130f2 | 1787 | int |
fca177d4 | 1788 | tty_capable_p (tty, caps, fg, bg) |
28d7d09f | 1789 | struct tty_display_info *tty; |
b63a55ac MB |
1790 | unsigned caps; |
1791 | unsigned long fg, bg; | |
1792 | { | |
fca177d4 KL |
1793 | #define TTY_CAPABLE_P_TRY(tty, cap, TS, NC_bit) \ |
1794 | if ((caps & (cap)) && (!(TS) || !MAY_USE_WITH_COLORS_P(tty, NC_bit))) \ | |
b63a55ac MB |
1795 | return 0; |
1796 | ||
fca177d4 KL |
1797 | TTY_CAPABLE_P_TRY (tty, TTY_CAP_INVERSE, tty->TS_standout_mode, NC_REVERSE); |
1798 | TTY_CAPABLE_P_TRY (tty, TTY_CAP_UNDERLINE, tty->TS_enter_underline_mode, NC_UNDERLINE); | |
1799 | TTY_CAPABLE_P_TRY (tty, TTY_CAP_BOLD, tty->TS_enter_bold_mode, NC_BOLD); | |
1800 | TTY_CAPABLE_P_TRY (tty, TTY_CAP_DIM, tty->TS_enter_dim_mode, NC_DIM); | |
1801 | TTY_CAPABLE_P_TRY (tty, TTY_CAP_BLINK, tty->TS_enter_blink_mode, NC_BLINK); | |
1802 | TTY_CAPABLE_P_TRY (tty, TTY_CAP_ALT_CHARSET, tty->TS_enter_alt_charset_mode, NC_ALT_CHARSET); | |
b63a55ac MB |
1803 | |
1804 | /* We can do it! */ | |
1805 | return 1; | |
1806 | } | |
1807 | ||
a168702a GM |
1808 | /* Return non-zero if the terminal is capable to display colors. */ |
1809 | ||
1810 | DEFUN ("tty-display-color-p", Ftty_display_color_p, Stty_display_color_p, | |
981e4297 | 1811 | 0, 1, 0, |
7e59217d KL |
1812 | doc: /* Return non-nil if the display device DEVICE can display colors. |
1813 | DEVICE must be a tty device. */) | |
1814 | (device) | |
1815 | Lisp_Object device; | |
a168702a | 1816 | { |
7e59217d | 1817 | struct device *d = get_tty_device (device); |
3224dac1 | 1818 | if (!d) |
428a555e | 1819 | return Qnil; |
3224dac1 KL |
1820 | else |
1821 | return d->display_info.tty->TN_max_colors > 0 ? Qt : Qnil; | |
a168702a GM |
1822 | } |
1823 | ||
bfa62f96 EZ |
1824 | /* Return the number of supported colors. */ |
1825 | DEFUN ("tty-display-color-cells", Ftty_display_color_cells, | |
1826 | Stty_display_color_cells, 0, 1, 0, | |
7e59217d KL |
1827 | doc: /* Return the number of colors supported by the tty device DEVICE. */) |
1828 | (device) | |
1829 | Lisp_Object device; | |
bfa62f96 | 1830 | { |
7e59217d | 1831 | struct device *d = get_tty_device (device); |
3224dac1 | 1832 | if (!d) |
8c8d5f35 | 1833 | return make_number (0); |
3224dac1 KL |
1834 | else |
1835 | return make_number (d->display_info.tty->TN_max_colors); | |
bfa62f96 EZ |
1836 | } |
1837 | ||
ace28297 | 1838 | #ifndef WINDOWSNT |
a168702a | 1839 | |
ace28297 EZ |
1840 | /* Save or restore the default color-related capabilities of this |
1841 | terminal. */ | |
1842 | static void | |
28d7d09f | 1843 | tty_default_color_capabilities (struct tty_display_info *tty, int save) |
ace28297 EZ |
1844 | { |
1845 | static char | |
1846 | *default_orig_pair, *default_set_foreground, *default_set_background; | |
1847 | static int default_max_colors, default_max_pairs, default_no_color_video; | |
1848 | ||
1849 | if (save) | |
1850 | { | |
1851 | if (default_orig_pair) | |
1852 | xfree (default_orig_pair); | |
fca177d4 | 1853 | default_orig_pair = tty->TS_orig_pair ? xstrdup (tty->TS_orig_pair) : NULL; |
ace28297 EZ |
1854 | |
1855 | if (default_set_foreground) | |
1856 | xfree (default_set_foreground); | |
fca177d4 | 1857 | default_set_foreground = tty->TS_set_foreground ? xstrdup (tty->TS_set_foreground) |
ace28297 EZ |
1858 | : NULL; |
1859 | ||
1860 | if (default_set_background) | |
1861 | xfree (default_set_background); | |
fca177d4 | 1862 | default_set_background = tty->TS_set_background ? xstrdup (tty->TS_set_background) |
ace28297 EZ |
1863 | : NULL; |
1864 | ||
fca177d4 KL |
1865 | default_max_colors = tty->TN_max_colors; |
1866 | default_max_pairs = tty->TN_max_pairs; | |
1867 | default_no_color_video = tty->TN_no_color_video; | |
ace28297 EZ |
1868 | } |
1869 | else | |
1870 | { | |
fca177d4 KL |
1871 | tty->TS_orig_pair = default_orig_pair; |
1872 | tty->TS_set_foreground = default_set_foreground; | |
1873 | tty->TS_set_background = default_set_background; | |
1874 | tty->TN_max_colors = default_max_colors; | |
1875 | tty->TN_max_pairs = default_max_pairs; | |
1876 | tty->TN_no_color_video = default_no_color_video; | |
ace28297 EZ |
1877 | } |
1878 | } | |
1879 | ||
1880 | /* Setup one of the standard tty color schemes according to MODE. | |
1881 | MODE's value is generally the number of colors which we want to | |
1882 | support; zero means set up for the default capabilities, the ones | |
a4c6993d | 1883 | we saw at init_tty time; -1 means turn off color support. */ |
ed8dad6b | 1884 | static void |
28d7d09f | 1885 | tty_setup_colors (struct tty_display_info *tty, int mode) |
ace28297 | 1886 | { |
40409f05 EZ |
1887 | /* Canonicalize all negative values of MODE. */ |
1888 | if (mode < -1) | |
1889 | mode = -1; | |
1890 | ||
ace28297 EZ |
1891 | switch (mode) |
1892 | { | |
1893 | case -1: /* no colors at all */ | |
fca177d4 KL |
1894 | tty->TN_max_colors = 0; |
1895 | tty->TN_max_pairs = 0; | |
1896 | tty->TN_no_color_video = 0; | |
1897 | tty->TS_set_foreground = tty->TS_set_background = tty->TS_orig_pair = NULL; | |
ace28297 EZ |
1898 | break; |
1899 | case 0: /* default colors, if any */ | |
1900 | default: | |
fca177d4 | 1901 | tty_default_color_capabilities (tty, 0); |
ace28297 EZ |
1902 | break; |
1903 | case 8: /* 8 standard ANSI colors */ | |
fca177d4 | 1904 | tty->TS_orig_pair = "\033[0m"; |
ace28297 | 1905 | #ifdef TERMINFO |
fca177d4 KL |
1906 | tty->TS_set_foreground = "\033[3%p1%dm"; |
1907 | tty->TS_set_background = "\033[4%p1%dm"; | |
ace28297 | 1908 | #else |
fca177d4 KL |
1909 | tty->TS_set_foreground = "\033[3%dm"; |
1910 | tty->TS_set_background = "\033[4%dm"; | |
ace28297 | 1911 | #endif |
fca177d4 KL |
1912 | tty->TN_max_colors = 8; |
1913 | tty->TN_max_pairs = 64; | |
1914 | tty->TN_no_color_video = 0; | |
ace28297 EZ |
1915 | break; |
1916 | } | |
1917 | } | |
1918 | ||
1919 | void | |
1920 | set_tty_color_mode (f, val) | |
1921 | struct frame *f; | |
1922 | Lisp_Object val; | |
1923 | { | |
dfc7a077 | 1924 | Lisp_Object color_mode_spec, current_mode_spec; |
ace28297 EZ |
1925 | Lisp_Object color_mode, current_mode; |
1926 | int mode, old_mode; | |
1927 | extern Lisp_Object Qtty_color_mode; | |
1928 | Lisp_Object tty_color_mode_alist; | |
1929 | ||
1930 | tty_color_mode_alist = Fintern_soft (build_string ("tty-color-mode-alist"), | |
1931 | Qnil); | |
1932 | ||
9ac61a89 | 1933 | if (INTEGERP (val)) |
ace28297 EZ |
1934 | color_mode = val; |
1935 | else | |
1936 | { | |
1937 | if (NILP (tty_color_mode_alist)) | |
1938 | color_mode_spec = Qnil; | |
1939 | else | |
1940 | color_mode_spec = Fassq (val, XSYMBOL (tty_color_mode_alist)->value); | |
ace28297 EZ |
1941 | |
1942 | if (CONSP (color_mode_spec)) | |
1943 | color_mode = XCDR (color_mode_spec); | |
1944 | else | |
1945 | color_mode = Qnil; | |
1946 | } | |
545d91d5 RS |
1947 | |
1948 | current_mode_spec = assq_no_quit (Qtty_color_mode, f->param_alist); | |
1949 | ||
ace28297 EZ |
1950 | if (CONSP (current_mode_spec)) |
1951 | current_mode = XCDR (current_mode_spec); | |
1952 | else | |
1953 | current_mode = Qnil; | |
9ac61a89 | 1954 | if (INTEGERP (color_mode)) |
ace28297 EZ |
1955 | mode = XINT (color_mode); |
1956 | else | |
1957 | mode = 0; /* meaning default */ | |
9ac61a89 | 1958 | if (INTEGERP (current_mode)) |
ace28297 EZ |
1959 | old_mode = XINT (current_mode); |
1960 | else | |
1961 | old_mode = 0; | |
1962 | ||
1963 | if (mode != old_mode) | |
1964 | { | |
fca177d4 | 1965 | tty_setup_colors (FRAME_TTY (f), mode); |
ace28297 EZ |
1966 | /* This recomputes all the faces given the new color |
1967 | definitions. */ | |
1968 | call0 (intern ("tty-set-up-initial-frame-faces")); | |
1969 | redraw_frame (f); | |
1970 | } | |
1971 | } | |
1972 | ||
1973 | #endif /* !WINDOWSNT */ | |
a168702a GM |
1974 | |
1975 | \f | |
28d440ab | 1976 | |
7e59217d | 1977 | /* Return the tty display object specified by DEVICE. */ |
b6660415 | 1978 | |
62af879c KL |
1979 | struct device * |
1980 | get_tty_device (Lisp_Object terminal) | |
b6660415 | 1981 | { |
62af879c KL |
1982 | struct device *d = get_device (terminal, 0); |
1983 | ||
d7e4838f KL |
1984 | if (d && d->type == output_initial) |
1985 | d = NULL; | |
1986 | ||
b6660415 | 1987 | if (d && d->type != output_termcap) |
7e59217d | 1988 | error ("Device %d is not a termcap display device", d->id); |
b6660415 KL |
1989 | |
1990 | return d; | |
1991 | } | |
1992 | ||
7e59217d KL |
1993 | /* Return the active termcap device that uses the tty device with the |
1994 | given name. If NAME is NULL, return the device corresponding to | |
b6660415 KL |
1995 | our controlling terminal. |
1996 | ||
7e59217d | 1997 | This function ignores suspended devices. |
da8e1115 KL |
1998 | |
1999 | Returns NULL if the named terminal device is not opened. */ | |
2000 | ||
7e59217d KL |
2001 | struct device * |
2002 | get_named_tty (name) | |
28d440ab KL |
2003 | char *name; |
2004 | { | |
7e59217d | 2005 | struct device *d; |
428a555e | 2006 | |
7e59217d | 2007 | for (d = device_list; d; d = d->next_device) { |
428a555e KL |
2008 | if (d->type == output_termcap |
2009 | && ((d->display_info.tty->name == 0 && name == 0) | |
2010 | || (name && d->display_info.tty->name | |
b6660415 | 2011 | && !strcmp (d->display_info.tty->name, name))) |
7e59217d | 2012 | && DEVICE_ACTIVE_P (d)) |
428a555e | 2013 | return d; |
28d440ab KL |
2014 | }; |
2015 | ||
2016 | return 0; | |
2017 | } | |
2018 | ||
2019 | \f | |
b6660415 | 2020 | DEFUN ("display-tty-type", Fdisplay_tty_type, Sdisplay_tty_type, 0, 1, 0, |
7e59217d | 2021 | doc: /* Return the type of the tty device that DEVICE uses. |
a3fbb897 | 2022 | |
7e59217d KL |
2023 | DEVICE may be a display device id, a frame, or nil (meaning the |
2024 | selected frame's display device). */) | |
2025 | (device) | |
2026 | Lisp_Object device; | |
b6660415 | 2027 | { |
7e59217d | 2028 | struct device *d = get_device (device, 1); |
819b8f00 | 2029 | |
b6660415 KL |
2030 | if (d->type != output_termcap) |
2031 | error ("Display %d is not a termcap display", d->id); | |
2032 | ||
2033 | if (d->display_info.tty->type) | |
2034 | return build_string (d->display_info.tty->type); | |
819b8f00 KL |
2035 | else |
2036 | return Qnil; | |
2037 | } | |
2038 | ||
4a933ef8 | 2039 | DEFUN ("display-controlling-tty-p", Fdisplay_controlling_tty_p, Sdisplay_controlling_tty_p, 0, 1, 0, |
7e59217d | 2040 | doc: /* Return non-nil if DEVICE is on the controlling tty of the Emacs process. |
a3fbb897 | 2041 | |
7e59217d KL |
2042 | DEVICE may be a display device id, a frame, or nil (meaning the |
2043 | selected frame's display device). */) | |
2044 | (device) | |
2045 | Lisp_Object device; | |
4a933ef8 | 2046 | { |
7e59217d | 2047 | struct device *d = get_device (device, 1); |
4a933ef8 KL |
2048 | |
2049 | if (d->type != output_termcap || d->display_info.tty->name) | |
2050 | return Qnil; | |
2051 | else | |
2052 | return Qt; | |
2053 | } | |
2054 | ||
a3fbb897 | 2055 | DEFUN ("tty-no-underline", Ftty_no_underline, Stty_no_underline, 0, 1, 0, |
7e59217d | 2056 | doc: /* Declare that the tty used by DEVICE does not handle underlining. |
a3fbb897 KL |
2057 | This is used to override the terminfo data, for certain terminals that |
2058 | do not really do underlining, but say that they do. This function has | |
2059 | no effect if used on a non-tty display. | |
2060 | ||
7e59217d KL |
2061 | DEVICE may be a display device id, a frame, or nil (meaning the |
2062 | selected frame's display device). */) | |
2063 | (device) | |
2064 | Lisp_Object device; | |
a3fbb897 | 2065 | { |
7e59217d | 2066 | struct device *d = get_device (device, 1); |
a3fbb897 KL |
2067 | |
2068 | if (d->type == output_termcap) | |
2069 | d->display_info.tty->TS_enter_underline_mode = 0; | |
2070 | return Qnil; | |
2071 | } | |
2072 | ||
ed8dad6b KL |
2073 | \f |
2074 | ||
2075 | DEFUN ("suspend-tty", Fsuspend_tty, Ssuspend_tty, 0, 1, 0, | |
2076 | doc: /* Suspend the terminal device TTY. | |
2077 | ||
2078 | The device is restored to its default state, and Emacs ceases all | |
2079 | access to the tty device. Frames that use the device are not deleted, | |
2080 | but input is not read from them and if they change, their display is | |
2081 | not updated. | |
2082 | ||
2083 | TTY may be a terminal id, a frame, or nil for the terminal device of | |
2084 | the currently selected frame. | |
2085 | ||
2086 | This function runs `suspend-tty-functions' after suspending the | |
2087 | device. The functions are run with one arg, the id of the suspended | |
2088 | terminal device. | |
2089 | ||
2090 | `suspend-tty' does nothing if it is called on a device that is already | |
2091 | suspended. | |
2092 | ||
2093 | A suspended tty may be resumed by calling `resume-tty' on it. */) | |
2094 | (tty) | |
2095 | Lisp_Object tty; | |
2096 | { | |
2097 | struct device *d = get_tty_device (tty); | |
2098 | FILE *f; | |
2099 | ||
2100 | if (!d) | |
2101 | error ("Unknown tty device"); | |
2102 | ||
2103 | f = d->display_info.tty->input; | |
2104 | ||
2105 | if (f) | |
2106 | { | |
2107 | reset_sys_modes (d->display_info.tty); | |
2108 | ||
2109 | delete_keyboard_wait_descriptor (fileno (f)); | |
2110 | ||
2111 | fclose (f); | |
2112 | if (f != d->display_info.tty->output) | |
2113 | fclose (d->display_info.tty->output); | |
2114 | ||
2115 | d->display_info.tty->input = 0; | |
2116 | d->display_info.tty->output = 0; | |
2117 | ||
2118 | if (FRAMEP (d->display_info.tty->top_frame)) | |
2119 | FRAME_SET_VISIBLE (XFRAME (d->display_info.tty->top_frame), 0); | |
2120 | ||
2121 | /* Run `suspend-tty-functions'. */ | |
2122 | if (!NILP (Vrun_hooks)) | |
2123 | { | |
2124 | Lisp_Object args[2]; | |
2125 | args[0] = intern ("suspend-tty-functions"); | |
2126 | args[1] = make_number (d->id); | |
2127 | Frun_hook_with_args (2, args); | |
2128 | } | |
2129 | } | |
2130 | ||
2131 | return Qnil; | |
2132 | } | |
2133 | ||
2134 | DEFUN ("resume-tty", Fresume_tty, Sresume_tty, 0, 1, 0, | |
2135 | doc: /* Resume the previously suspended terminal device TTY. | |
2136 | The terminal is opened and reinitialized. Frames that are on the | |
2137 | suspended display are revived. | |
2138 | ||
2139 | It is an error to resume a display while another display is active on | |
2140 | the same device. | |
2141 | ||
2142 | This function runs `resume-tty-functions' after resuming the device. | |
2143 | The functions are run with one arg, the id of the resumed display | |
2144 | device. | |
2145 | ||
2146 | `resume-tty' does nothing if it is called on a device that is not | |
2147 | suspended. | |
2148 | ||
2149 | TTY may be a display device id, a frame, or nil for the display device | |
2150 | of the currently selected frame. */) | |
2151 | (tty) | |
2152 | Lisp_Object tty; | |
2153 | { | |
2154 | struct device *d = get_tty_device (tty); | |
2155 | int fd; | |
2156 | ||
2157 | if (!d) | |
2158 | error ("Unknown tty device"); | |
2159 | ||
2160 | if (!d->display_info.tty->input) | |
2161 | { | |
2162 | if (get_named_tty (d->display_info.tty->name)) | |
2163 | error ("Cannot resume display while another display is active on the same device"); | |
2164 | ||
2165 | fd = emacs_open (d->display_info.tty->name, O_RDWR | O_NOCTTY, 0); | |
2166 | ||
2167 | /* XXX What if open fails? */ | |
2168 | ||
2169 | dissociate_if_controlling_tty (fd); | |
2170 | ||
2171 | d->display_info.tty->output = fdopen (fd, "w+"); | |
2172 | d->display_info.tty->input = d->display_info.tty->output; | |
2173 | ||
2174 | add_keyboard_wait_descriptor (fd); | |
2175 | ||
2176 | if (FRAMEP (d->display_info.tty->top_frame)) | |
2177 | FRAME_SET_VISIBLE (XFRAME (d->display_info.tty->top_frame), 1); | |
2178 | ||
2179 | init_sys_modes (d->display_info.tty); | |
2180 | ||
2181 | /* Run `suspend-tty-functions'. */ | |
2182 | if (!NILP (Vrun_hooks)) | |
2183 | { | |
2184 | Lisp_Object args[2]; | |
2185 | args[0] = intern ("resume-tty-functions"); | |
2186 | args[1] = make_number (d->id); | |
2187 | Frun_hook_with_args (2, args); | |
2188 | } | |
2189 | } | |
2190 | ||
2191 | return Qnil; | |
2192 | } | |
a3fbb897 | 2193 | |
819b8f00 | 2194 | \f |
a168702a GM |
2195 | /*********************************************************************** |
2196 | Initialization | |
2197 | ***********************************************************************/ | |
2198 | ||
ed8dad6b KL |
2199 | /* Initialize the tty-dependent part of frame F. The frame must |
2200 | already have its device initialized. */ | |
3224dac1 | 2201 | |
ed8dad6b KL |
2202 | void |
2203 | create_tty_output (struct frame *f) | |
28d440ab | 2204 | { |
ed8dad6b KL |
2205 | struct tty_output *t; |
2206 | ||
2207 | if (! FRAME_TERMCAP_P (f)) | |
428a555e KL |
2208 | abort (); |
2209 | ||
ed8dad6b KL |
2210 | t = xmalloc (sizeof (struct tty_output)); |
2211 | bzero (t, sizeof (struct tty_output)); | |
b6660415 | 2212 | |
ed8dad6b | 2213 | t->display_info = FRAME_DEVICE (f)->display_info.tty; |
bedb9c0e | 2214 | |
ed8dad6b | 2215 | f->output_data.tty = t; |
3224dac1 KL |
2216 | } |
2217 | ||
ed8dad6b | 2218 | /* Delete the tty-dependent part of frame F. */ |
da8e1115 | 2219 | |
ed8dad6b KL |
2220 | static void |
2221 | delete_tty_output (struct frame *f) | |
3224dac1 | 2222 | { |
ed8dad6b | 2223 | if (! FRAME_TERMCAP_P (f)) |
3224dac1 KL |
2224 | abort (); |
2225 | ||
ed8dad6b | 2226 | xfree (f->output_data.tty); |
28d440ab KL |
2227 | } |
2228 | ||
ed8dad6b KL |
2229 | \f |
2230 | ||
03a1d6bd | 2231 | /* Drop the controlling terminal if fd is the same device. */ |
ed8dad6b | 2232 | static void |
03a1d6bd KL |
2233 | dissociate_if_controlling_tty (int fd) |
2234 | { | |
03a1d6bd | 2235 | int pgid; |
8516815b | 2236 | EMACS_GET_TTY_PGRP (fd, &pgid); /* If tcgetpgrp succeeds, fd is the ctty. */ |
03a1d6bd KL |
2237 | if (pgid != -1) |
2238 | { | |
8516815b | 2239 | #if defined (USG) && !defined (BSD_PGRPS) |
03a1d6bd KL |
2240 | setpgrp (); |
2241 | no_controlling_tty = 1; | |
03a1d6bd KL |
2242 | #else |
2243 | #ifdef TIOCNOTTY /* Try BSD ioctls. */ | |
8516815b KL |
2244 | sigblock (sigmask (SIGTTOU)); |
2245 | fd = emacs_open ("/dev/tty", O_RDWR, 0); | |
2246 | if (fd != -1 && ioctl (fd, TIOCNOTTY, 0) != -1) | |
2247 | { | |
2248 | no_controlling_tty = 1; | |
2249 | } | |
2250 | if (fd != -1) | |
2251 | emacs_close (fd); | |
2252 | sigunblock (sigmask (SIGTTOU)); | |
03a1d6bd | 2253 | #else |
8516815b KL |
2254 | /* Unknown system. */ |
2255 | croak (); | |
03a1d6bd KL |
2256 | #endif /* ! TIOCNOTTY */ |
2257 | #endif /* ! USG */ | |
71a96040 | 2258 | } |
03a1d6bd KL |
2259 | } |
2260 | ||
520c4dfd KL |
2261 | static void maybe_fatal(); |
2262 | ||
3224dac1 KL |
2263 | /* Create a termcap display on the tty device with the given name and |
2264 | type. | |
2265 | ||
2266 | If NAME is NULL, then use the controlling tty, i.e., stdin/stdout. | |
2267 | Otherwise NAME should be a path to the tty device file, | |
2268 | e.g. "/dev/pts/7". | |
28d440ab | 2269 | |
3224dac1 KL |
2270 | TERMINAL_TYPE is the termcap type of the device, e.g. "vt100". |
2271 | ||
2272 | If MUST_SUCCEED is true, then all errors are fatal. */ | |
da8e1115 | 2273 | |
7e59217d | 2274 | struct device * |
a4c6993d | 2275 | init_tty (char *name, char *terminal_type, int must_succeed) |
08a24c47 JB |
2276 | { |
2277 | char *area; | |
2278 | char **address = &area; | |
3a06a6d9 | 2279 | char *buffer = NULL; |
5846981b | 2280 | int buffer_size = 4096; |
08a24c47 JB |
2281 | register char *p; |
2282 | int status; | |
28d7d09f | 2283 | struct tty_display_info *tty; |
7e59217d | 2284 | struct device *device; |
28d440ab | 2285 | |
3224dac1 KL |
2286 | if (!terminal_type) |
2287 | maybe_fatal (must_succeed, 0, 0, | |
2288 | "Unknown terminal type", | |
2289 | "Unknown terminal type"); | |
b6660415 | 2290 | |
7e59217d KL |
2291 | /* If we already have a display on the given device, use that. If |
2292 | all such displays are suspended, create a new one instead. */ | |
a4c6993d | 2293 | /* XXX Perhaps this should be made explicit by having init_tty |
7e59217d | 2294 | always create a new display and separating device and frame |
b6660415 | 2295 | creation on Lisp level. */ |
7e59217d KL |
2296 | device = get_named_tty (name); |
2297 | if (device) | |
2298 | return device; | |
428a555e | 2299 | |
7e59217d | 2300 | device = create_device (); |
3224dac1 KL |
2301 | tty = (struct tty_display_info *) xmalloc (sizeof (struct tty_display_info)); |
2302 | bzero (tty, sizeof (struct tty_display_info)); | |
2303 | tty->next = tty_list; | |
2304 | tty_list = tty; | |
428a555e | 2305 | |
7e59217d KL |
2306 | device->type = output_termcap; |
2307 | device->display_info.tty = tty; | |
2308 | tty->device = device; | |
28d440ab | 2309 | |
7b00d185 KL |
2310 | tty->Wcm = (struct cm *) xmalloc (sizeof (struct cm)); |
2311 | Wcm_clear (tty); | |
daf01701 | 2312 | |
7e59217d | 2313 | device->rif = 0; /* ttys don't support window-based redisplay. */ |
3224dac1 | 2314 | |
7e59217d KL |
2315 | device->cursor_to_hook = &tty_cursor_to; |
2316 | device->raw_cursor_to_hook = &tty_raw_cursor_to; | |
3224dac1 | 2317 | |
7e59217d KL |
2318 | device->clear_to_end_hook = &tty_clear_to_end; |
2319 | device->clear_frame_hook = &tty_clear_frame; | |
2320 | device->clear_end_of_line_hook = &tty_clear_end_of_line; | |
3224dac1 | 2321 | |
7e59217d | 2322 | device->ins_del_lines_hook = &tty_ins_del_lines; |
3224dac1 | 2323 | |
7e59217d KL |
2324 | device->insert_glyphs_hook = &tty_insert_glyphs; |
2325 | device->write_glyphs_hook = &tty_write_glyphs; | |
2326 | device->delete_glyphs_hook = &tty_delete_glyphs; | |
3224dac1 | 2327 | |
7e59217d | 2328 | device->ring_bell_hook = &tty_ring_bell; |
3224dac1 | 2329 | |
7e59217d KL |
2330 | device->reset_terminal_modes_hook = &tty_reset_terminal_modes; |
2331 | device->set_terminal_modes_hook = &tty_set_terminal_modes; | |
2332 | device->update_begin_hook = 0; /* Not needed. */ | |
2333 | device->update_end_hook = &tty_update_end; | |
2334 | device->set_terminal_window_hook = &tty_set_terminal_window; | |
2335 | ||
2336 | device->mouse_position_hook = 0; /* Not needed. */ | |
2337 | device->frame_rehighlight_hook = 0; /* Not needed. */ | |
2338 | device->frame_raise_lower_hook = 0; /* Not needed. */ | |
2339 | ||
2340 | device->set_vertical_scroll_bar_hook = 0; /* Not needed. */ | |
2341 | device->condemn_scroll_bars_hook = 0; /* Not needed. */ | |
2342 | device->redeem_scroll_bar_hook = 0; /* Not needed. */ | |
2343 | device->judge_scroll_bars_hook = 0; /* Not needed. */ | |
2344 | ||
2345 | device->read_socket_hook = &tty_read_avail_input; /* keyboard.c */ | |
2346 | device->frame_up_to_date_hook = 0; /* Not needed. */ | |
3224dac1 | 2347 | |
7e59217d KL |
2348 | device->delete_frame_hook = &delete_tty_output; |
2349 | device->delete_device_hook = &delete_tty; | |
428a555e | 2350 | |
28d440ab KL |
2351 | if (name) |
2352 | { | |
2353 | int fd; | |
0a125897 | 2354 | FILE *file; |
0c72d684 KL |
2355 | |
2356 | #ifdef O_IGNORE_CTTY | |
2357 | /* Open the terminal device. Don't recognize it as our | |
2358 | controlling terminal, and don't make it the controlling tty | |
2359 | if we don't have one at the moment. */ | |
2360 | fd = emacs_open (name, O_RDWR | O_IGNORE_CTTY | O_NOCTTY, 0); | |
2361 | #else | |
2666355c KL |
2362 | /* Alas, O_IGNORE_CTTY is a GNU extension that seems to be only |
2363 | defined on Hurd. On other systems, we need to dissociate | |
2364 | ourselves from the controlling tty when we want to open a | |
03a1d6bd | 2365 | frame on the same terminal. */ |
0c72d684 KL |
2366 | |
2367 | fd = emacs_open (name, O_RDWR | O_NOCTTY, 0); | |
03a1d6bd | 2368 | |
0c72d684 KL |
2369 | #endif /* O_IGNORE_CTTY */ |
2370 | ||
28d440ab KL |
2371 | if (fd < 0) |
2372 | { | |
7e59217d | 2373 | delete_tty (device); |
fca177d4 | 2374 | error ("Could not open file: %s", name); |
28d440ab | 2375 | } |
e7cf0fa0 | 2376 | if (!isatty (fd)) |
0c72d684 KL |
2377 | { |
2378 | close (fd); | |
2379 | error ("Not a tty device: %s", name); | |
2380 | } | |
2381 | ||
03a1d6bd KL |
2382 | dissociate_if_controlling_tty (fd); |
2383 | ||
0a125897 | 2384 | file = fdopen (fd, "w+"); |
28d7d09f | 2385 | tty->name = xstrdup (name); |
7e59217d | 2386 | device->name = xstrdup (name); |
28d7d09f KL |
2387 | tty->input = file; |
2388 | tty->output = file; | |
28d440ab KL |
2389 | } |
2390 | else | |
2391 | { | |
0c72d684 KL |
2392 | if (no_controlling_tty) |
2393 | { | |
2394 | /* Opening a frame on stdout is unsafe if we have | |
2395 | disconnected our controlling terminal. */ | |
2396 | error ("There is no controlling terminal any more"); | |
2397 | } | |
28d7d09f | 2398 | tty->name = 0; |
7e59217d | 2399 | device->name = xstrdup (ttyname (0)); |
28d7d09f KL |
2400 | tty->input = stdin; |
2401 | tty->output = stdout; | |
28d440ab KL |
2402 | } |
2403 | ||
28d7d09f | 2404 | tty->type = xstrdup (terminal_type); |
28d440ab | 2405 | |
819b8f00 | 2406 | add_keyboard_wait_descriptor (fileno (tty->input)); |
daf01701 | 2407 | |
af645abf KH |
2408 | encode_terminal_bufsize = 0; |
2409 | ||
cb28b9c2 | 2410 | #ifdef WINDOWSNT |
29f27c39 | 2411 | initialize_w32_display (); |
cb28b9c2 | 2412 | |
fca177d4 | 2413 | Wcm_clear (tty); |
cb28b9c2 | 2414 | |
a678d9ff | 2415 | area = (char *) xmalloc (2044); |
cb28b9c2 | 2416 | |
428a555e KL |
2417 | FrameRows (tty) = FRAME_LINES (f); /* XXX */ |
2418 | FrameCols (tty) = FRAME_COLS (f); /* XXX */ | |
2419 | tty->specified_window = FRAME_LINES (f); /* XXX */ | |
cb28b9c2 | 2420 | |
7e59217d | 2421 | tty->device->delete_in_insert_mode = 1; |
cb28b9c2 | 2422 | |
daf01701 | 2423 | UseTabs (tty) = 0; |
7e59217d | 2424 | device->scroll_region_ok = 0; |
cb28b9c2 | 2425 | |
7e59217d KL |
2426 | /* Seems to insert lines when it's not supposed to, messing up the |
2427 | device. In doing a trace, it didn't seem to be called much, so I | |
2428 | don't think we're losing anything by turning it off. */ | |
2429 | device->line_ins_del_ok = 0; | |
2430 | device->char_ins_del_ok = 1; | |
cb28b9c2 RS |
2431 | |
2432 | baud_rate = 19200; | |
2433 | ||
428a555e KL |
2434 | FRAME_CAN_HAVE_SCROLL_BARS (f) = 0; /* XXX */ |
2435 | FRAME_VERTICAL_SCROLL_BAR_TYPE (f) = vertical_scroll_bar_none; /* XXX */ | |
acfcd5cd | 2436 | TN_max_colors = 16; /* Required to be non-zero for tty-display-color-p */ |
cb28b9c2 | 2437 | |
7e59217d | 2438 | return device; |
eccec691 | 2439 | #else /* not WINDOWSNT */ |
cb28b9c2 | 2440 | |
6548cf00 | 2441 | Wcm_clear (tty); |
08a24c47 | 2442 | |
3a06a6d9 | 2443 | buffer = (char *) xmalloc (buffer_size); |
03a1d6bd KL |
2444 | |
2445 | /* On some systems, tgetent tries to access the controlling | |
2446 | terminal. */ | |
2447 | sigblock (sigmask (SIGTTOU)); | |
08a24c47 | 2448 | status = tgetent (buffer, terminal_type); |
03a1d6bd KL |
2449 | sigunblock (sigmask (SIGTTOU)); |
2450 | ||
08a24c47 | 2451 | if (status < 0) |
b0347178 KH |
2452 | { |
2453 | #ifdef TERMINFO | |
7e59217d | 2454 | maybe_fatal (must_succeed, buffer, device, |
3224dac1 KL |
2455 | "Cannot open terminfo database file", |
2456 | "Cannot open terminfo database file"); | |
b0347178 | 2457 | #else |
7e59217d | 2458 | maybe_fatal (must_succeed, buffer, device, |
3224dac1 KL |
2459 | "Cannot open termcap database file", |
2460 | "Cannot open termcap database file"); | |
b0347178 KH |
2461 | #endif |
2462 | } | |
08a24c47 | 2463 | if (status == 0) |
b0347178 KH |
2464 | { |
2465 | #ifdef TERMINFO | |
7e59217d | 2466 | maybe_fatal (must_succeed, buffer, device, |
3224dac1 KL |
2467 | "Terminal type %s is not defined", |
2468 | "Terminal type %s is not defined.\n\ | |
0a125897 | 2469 | If that is not the actual type of terminal you have,\n\ |
b0347178 KH |
2470 | use the Bourne shell command `TERM=... export TERM' (C-shell:\n\ |
2471 | `setenv TERM ...') to specify the correct type. It may be necessary\n\ | |
e12c1054 | 2472 | to do `unset TERMINFO' (C-shell: `unsetenv TERMINFO') as well.", |
3224dac1 | 2473 | terminal_type); |
b0347178 | 2474 | #else |
7e59217d | 2475 | maybe_fatal (must_succeed, buffer, device, |
3224dac1 KL |
2476 | "Terminal type %s is not defined", |
2477 | "Terminal type %s is not defined.\n\ | |
0a125897 | 2478 | If that is not the actual type of terminal you have,\n\ |
c5a9c3e6 RS |
2479 | use the Bourne shell command `TERM=... export TERM' (C-shell:\n\ |
2480 | `setenv TERM ...') to specify the correct type. It may be necessary\n\ | |
e12c1054 | 2481 | to do `unset TERMCAP' (C-shell: `unsetenv TERMCAP') as well.", |
3224dac1 | 2482 | terminal_type); |
b0347178 KH |
2483 | #endif |
2484 | } | |
3a06a6d9 | 2485 | |
f730033e | 2486 | #ifndef TERMINFO |
3a06a6d9 | 2487 | if (strlen (buffer) >= buffer_size) |
08a24c47 | 2488 | abort (); |
f730033e | 2489 | buffer_size = strlen (buffer); |
3dd3a502 | 2490 | #endif |
f730033e | 2491 | area = (char *) xmalloc (buffer_size); |
08a24c47 | 2492 | |
fca177d4 KL |
2493 | tty->TS_ins_line = tgetstr ("al", address); |
2494 | tty->TS_ins_multi_lines = tgetstr ("AL", address); | |
2495 | tty->TS_bell = tgetstr ("bl", address); | |
6548cf00 | 2496 | BackTab (tty) = tgetstr ("bt", address); |
fca177d4 KL |
2497 | tty->TS_clr_to_bottom = tgetstr ("cd", address); |
2498 | tty->TS_clr_line = tgetstr ("ce", address); | |
2499 | tty->TS_clr_frame = tgetstr ("cl", address); | |
6548cf00 KL |
2500 | ColPosition (tty) = NULL; /* tgetstr ("ch", address); */ |
2501 | AbsPosition (tty) = tgetstr ("cm", address); | |
2502 | CR (tty) = tgetstr ("cr", address); | |
fca177d4 KL |
2503 | tty->TS_set_scroll_region = tgetstr ("cs", address); |
2504 | tty->TS_set_scroll_region_1 = tgetstr ("cS", address); | |
6548cf00 | 2505 | RowPosition (tty) = tgetstr ("cv", address); |
fca177d4 KL |
2506 | tty->TS_del_char = tgetstr ("dc", address); |
2507 | tty->TS_del_multi_chars = tgetstr ("DC", address); | |
2508 | tty->TS_del_line = tgetstr ("dl", address); | |
2509 | tty->TS_del_multi_lines = tgetstr ("DL", address); | |
2510 | tty->TS_delete_mode = tgetstr ("dm", address); | |
2511 | tty->TS_end_delete_mode = tgetstr ("ed", address); | |
2512 | tty->TS_end_insert_mode = tgetstr ("ei", address); | |
6548cf00 | 2513 | Home (tty) = tgetstr ("ho", address); |
fca177d4 KL |
2514 | tty->TS_ins_char = tgetstr ("ic", address); |
2515 | tty->TS_ins_multi_chars = tgetstr ("IC", address); | |
2516 | tty->TS_insert_mode = tgetstr ("im", address); | |
2517 | tty->TS_pad_inserted_char = tgetstr ("ip", address); | |
2518 | tty->TS_end_keypad_mode = tgetstr ("ke", address); | |
2519 | tty->TS_keypad_mode = tgetstr ("ks", address); | |
6548cf00 KL |
2520 | LastLine (tty) = tgetstr ("ll", address); |
2521 | Right (tty) = tgetstr ("nd", address); | |
2522 | Down (tty) = tgetstr ("do", address); | |
2523 | if (!Down (tty)) | |
2524 | Down (tty) = tgetstr ("nl", address); /* Obsolete name for "do" */ | |
08a24c47 JB |
2525 | #ifdef VMS |
2526 | /* VMS puts a carriage return before each linefeed, | |
2527 | so it is not safe to use linefeeds. */ | |
6548cf00 KL |
2528 | if (Down (tty) && Down (tty)[0] == '\n' && Down (tty)[1] == '\0') |
2529 | Down (tty) = 0; | |
08a24c47 JB |
2530 | #endif /* VMS */ |
2531 | if (tgetflag ("bs")) | |
6548cf00 | 2532 | Left (tty) = "\b"; /* can't possibly be longer! */ |
08a24c47 | 2533 | else /* (Actually, "bs" is obsolete...) */ |
6548cf00 KL |
2534 | Left (tty) = tgetstr ("le", address); |
2535 | if (!Left (tty)) | |
2536 | Left (tty) = tgetstr ("bc", address); /* Obsolete name for "le" */ | |
fca177d4 KL |
2537 | tty->TS_pad_char = tgetstr ("pc", address); |
2538 | tty->TS_repeat = tgetstr ("rp", address); | |
2539 | tty->TS_end_standout_mode = tgetstr ("se", address); | |
2540 | tty->TS_fwd_scroll = tgetstr ("sf", address); | |
2541 | tty->TS_standout_mode = tgetstr ("so", address); | |
2542 | tty->TS_rev_scroll = tgetstr ("sr", address); | |
6548cf00 | 2543 | tty->Wcm->cm_tab = tgetstr ("ta", address); |
fca177d4 KL |
2544 | tty->TS_end_termcap_modes = tgetstr ("te", address); |
2545 | tty->TS_termcap_modes = tgetstr ("ti", address); | |
6548cf00 | 2546 | Up (tty) = tgetstr ("up", address); |
fca177d4 KL |
2547 | tty->TS_visible_bell = tgetstr ("vb", address); |
2548 | tty->TS_cursor_normal = tgetstr ("ve", address); | |
2549 | tty->TS_cursor_visible = tgetstr ("vs", address); | |
2550 | tty->TS_cursor_invisible = tgetstr ("vi", address); | |
2551 | tty->TS_set_window = tgetstr ("wi", address); | |
2552 | ||
2553 | tty->TS_enter_underline_mode = tgetstr ("us", address); | |
2554 | tty->TS_exit_underline_mode = tgetstr ("ue", address); | |
2555 | tty->TS_enter_bold_mode = tgetstr ("md", address); | |
2556 | tty->TS_enter_dim_mode = tgetstr ("mh", address); | |
2557 | tty->TS_enter_blink_mode = tgetstr ("mb", address); | |
2558 | tty->TS_enter_reverse_mode = tgetstr ("mr", address); | |
2559 | tty->TS_enter_alt_charset_mode = tgetstr ("as", address); | |
2560 | tty->TS_exit_alt_charset_mode = tgetstr ("ae", address); | |
2561 | tty->TS_exit_attribute_mode = tgetstr ("me", address); | |
177c0ea7 | 2562 | |
6548cf00 KL |
2563 | MultiUp (tty) = tgetstr ("UP", address); |
2564 | MultiDown (tty) = tgetstr ("DO", address); | |
2565 | MultiLeft (tty) = tgetstr ("LE", address); | |
2566 | MultiRight (tty) = tgetstr ("RI", address); | |
08a24c47 | 2567 | |
e7f90eab GM |
2568 | /* SVr4/ANSI color suppert. If "op" isn't available, don't support |
2569 | color because we can't switch back to the default foreground and | |
2570 | background. */ | |
fca177d4 KL |
2571 | tty->TS_orig_pair = tgetstr ("op", address); |
2572 | if (tty->TS_orig_pair) | |
a168702a | 2573 | { |
fca177d4 KL |
2574 | tty->TS_set_foreground = tgetstr ("AF", address); |
2575 | tty->TS_set_background = tgetstr ("AB", address); | |
2576 | if (!tty->TS_set_foreground) | |
e7f90eab GM |
2577 | { |
2578 | /* SVr4. */ | |
fca177d4 KL |
2579 | tty->TS_set_foreground = tgetstr ("Sf", address); |
2580 | tty->TS_set_background = tgetstr ("Sb", address); | |
e7f90eab | 2581 | } |
177c0ea7 | 2582 | |
fca177d4 KL |
2583 | tty->TN_max_colors = tgetnum ("Co"); |
2584 | tty->TN_max_pairs = tgetnum ("pa"); | |
177c0ea7 | 2585 | |
fca177d4 KL |
2586 | tty->TN_no_color_video = tgetnum ("NC"); |
2587 | if (tty->TN_no_color_video == -1) | |
2588 | tty->TN_no_color_video = 0; | |
a168702a | 2589 | } |
a168702a | 2590 | |
fca177d4 | 2591 | tty_default_color_capabilities (tty, 1); |
ace28297 | 2592 | |
6548cf00 | 2593 | MagicWrap (tty) = tgetflag ("xn"); |
e4058338 KH |
2594 | /* Since we make MagicWrap terminals look like AutoWrap, we need to have |
2595 | the former flag imply the latter. */ | |
6548cf00 | 2596 | AutoWrap (tty) = MagicWrap (tty) || tgetflag ("am"); |
7e59217d | 2597 | device->memory_below_frame = tgetflag ("db"); |
fca177d4 | 2598 | tty->TF_hazeltine = tgetflag ("hz"); |
7e59217d | 2599 | device->must_write_spaces = tgetflag ("in"); |
fca177d4 KL |
2600 | tty->meta_key = tgetflag ("km") || tgetflag ("MT"); |
2601 | tty->TF_insmode_motion = tgetflag ("mi"); | |
2602 | tty->TF_standout_motion = tgetflag ("ms"); | |
2603 | tty->TF_underscore = tgetflag ("ul"); | |
2604 | tty->TF_teleray = tgetflag ("xt"); | |
08a24c47 | 2605 | |
e7cf0fa0 | 2606 | #ifdef MULTI_KBOARD |
7e59217d KL |
2607 | device->kboard = (KBOARD *) xmalloc (sizeof (KBOARD)); |
2608 | init_kboard (device->kboard); | |
2609 | device->kboard->next_kboard = all_kboards; | |
2610 | all_kboards = device->kboard; | |
2611 | device->kboard->reference_count++; | |
e7cf0fa0 KL |
2612 | /* Don't let the initial kboard remain current longer than necessary. |
2613 | That would cause problems if a file loaded on startup tries to | |
2614 | prompt in the mini-buffer. */ | |
2615 | if (current_kboard == initial_kboard) | |
7e59217d | 2616 | current_kboard = device->kboard; |
e7cf0fa0 KL |
2617 | #endif |
2618 | ||
7e59217d | 2619 | term_get_fkeys (address, device->kboard); |
5c2c7893 | 2620 | |
ff11dfa1 | 2621 | /* Get frame size from system, or else from termcap. */ |
3b12ce12 RS |
2622 | { |
2623 | int height, width; | |
0b0d3e0b | 2624 | get_tty_size (fileno (tty->input), &width, &height); |
0a125897 KL |
2625 | FrameCols (tty) = width; |
2626 | FrameRows (tty) = height; | |
3b12ce12 RS |
2627 | } |
2628 | ||
0a125897 KL |
2629 | if (FrameCols (tty) <= 0) |
2630 | FrameCols (tty) = tgetnum ("co"); | |
2631 | if (FrameRows (tty) <= 0) | |
2632 | FrameRows (tty) = tgetnum ("li"); | |
177c0ea7 | 2633 | |
0a125897 | 2634 | if (FrameRows (tty) < 3 || FrameCols (tty) < 3) |
7e59217d | 2635 | maybe_fatal (must_succeed, NULL, device, |
3224dac1 KL |
2636 | "Screen size %dx%d is too small" |
2637 | "Screen size %dx%d is too small", | |
0a125897 | 2638 | FrameCols (tty), FrameRows (tty)); |
ee7a2de4 | 2639 | |
8a56675d | 2640 | #if 0 /* This is not used anywhere. */ |
7e59217d | 2641 | tty->device->min_padding_speed = tgetnum ("pb"); |
8a56675d | 2642 | #endif |
28d440ab | 2643 | |
6548cf00 | 2644 | TabWidth (tty) = tgetnum ("tw"); |
08a24c47 JB |
2645 | |
2646 | #ifdef VMS | |
2647 | /* These capabilities commonly use ^J. | |
2648 | I don't know why, but sending them on VMS does not work; | |
2649 | it causes following spaces to be lost, sometimes. | |
2650 | For now, the simplest fix is to avoid using these capabilities ever. */ | |
6548cf00 KL |
2651 | if (Down (tty) && Down (tty)[0] == '\n') |
2652 | Down (tty) = 0; | |
08a24c47 JB |
2653 | #endif /* VMS */ |
2654 | ||
fca177d4 KL |
2655 | if (!tty->TS_bell) |
2656 | tty->TS_bell = "\07"; | |
08a24c47 | 2657 | |
fca177d4 KL |
2658 | if (!tty->TS_fwd_scroll) |
2659 | tty->TS_fwd_scroll = Down (tty); | |
08a24c47 | 2660 | |
fca177d4 | 2661 | PC = tty->TS_pad_char ? *tty->TS_pad_char : 0; |
08a24c47 | 2662 | |
6548cf00 KL |
2663 | if (TabWidth (tty) < 0) |
2664 | TabWidth (tty) = 8; | |
177c0ea7 | 2665 | |
08a24c47 JB |
2666 | /* Turned off since /etc/termcap seems to have :ta= for most terminals |
2667 | and newer termcap doc does not seem to say there is a default. | |
6548cf00 KL |
2668 | if (!tty->Wcm->cm_tab) |
2669 | tty->Wcm->cm_tab = "\t"; | |
08a24c47 JB |
2670 | */ |
2671 | ||
54800acb MB |
2672 | /* We don't support standout modes that use `magic cookies', so |
2673 | turn off any that do. */ | |
fca177d4 | 2674 | if (tty->TS_standout_mode && tgetnum ("sg") >= 0) |
54800acb | 2675 | { |
fca177d4 KL |
2676 | tty->TS_standout_mode = 0; |
2677 | tty->TS_end_standout_mode = 0; | |
54800acb | 2678 | } |
fca177d4 | 2679 | if (tty->TS_enter_underline_mode && tgetnum ("ug") >= 0) |
54800acb | 2680 | { |
fca177d4 KL |
2681 | tty->TS_enter_underline_mode = 0; |
2682 | tty->TS_exit_underline_mode = 0; | |
54800acb MB |
2683 | } |
2684 | ||
2685 | /* If there's no standout mode, try to use underlining instead. */ | |
fca177d4 | 2686 | if (tty->TS_standout_mode == 0) |
08a24c47 | 2687 | { |
fca177d4 KL |
2688 | tty->TS_standout_mode = tty->TS_enter_underline_mode; |
2689 | tty->TS_end_standout_mode = tty->TS_exit_underline_mode; | |
08a24c47 JB |
2690 | } |
2691 | ||
afd359c4 RS |
2692 | /* If no `se' string, try using a `me' string instead. |
2693 | If that fails, we can't use standout mode at all. */ | |
fca177d4 | 2694 | if (tty->TS_end_standout_mode == 0) |
afd359c4 | 2695 | { |
e4bfb3b6 | 2696 | char *s = tgetstr ("me", address); |
afd359c4 | 2697 | if (s != 0) |
fca177d4 | 2698 | tty->TS_end_standout_mode = s; |
afd359c4 | 2699 | else |
fca177d4 | 2700 | tty->TS_standout_mode = 0; |
afd359c4 RS |
2701 | } |
2702 | ||
fca177d4 | 2703 | if (tty->TF_teleray) |
08a24c47 | 2704 | { |
6548cf00 | 2705 | tty->Wcm->cm_tab = 0; |
54800acb | 2706 | /* We can't support standout mode, because it uses magic cookies. */ |
fca177d4 | 2707 | tty->TS_standout_mode = 0; |
08a24c47 | 2708 | /* But that means we cannot rely on ^M to go to column zero! */ |
6548cf00 | 2709 | CR (tty) = 0; |
08a24c47 JB |
2710 | /* LF can't be trusted either -- can alter hpos */ |
2711 | /* if move at column 0 thru a line with TS_standout_mode */ | |
6548cf00 | 2712 | Down (tty) = 0; |
08a24c47 JB |
2713 | } |
2714 | ||
2715 | /* Special handling for certain terminal types known to need it */ | |
2716 | ||
2717 | if (!strcmp (terminal_type, "supdup")) | |
2718 | { | |
7e59217d | 2719 | device->memory_below_frame = 1; |
6548cf00 | 2720 | tty->Wcm->cm_losewrap = 1; |
08a24c47 JB |
2721 | } |
2722 | if (!strncmp (terminal_type, "c10", 3) | |
2723 | || !strcmp (terminal_type, "perq")) | |
2724 | { | |
2725 | /* Supply a makeshift :wi string. | |
2726 | This string is not valid in general since it works only | |
2727 | for windows starting at the upper left corner; | |
2728 | but that is all Emacs uses. | |
daf01701 | 2729 | |
ff11dfa1 | 2730 | This string works only if the frame is using |
08a24c47 JB |
2731 | the top of the video memory, because addressing is memory-relative. |
2732 | So first check the :ti string to see if that is true. | |
2733 | ||
2734 | It would be simpler if the :wi string could go in the termcap | |
2735 | entry, but it can't because it is not fully valid. | |
2736 | If it were in the termcap entry, it would confuse other programs. */ | |
fca177d4 | 2737 | if (!tty->TS_set_window) |
08a24c47 | 2738 | { |
fca177d4 | 2739 | p = tty->TS_termcap_modes; |
08a24c47 JB |
2740 | while (*p && strcmp (p, "\033v ")) |
2741 | p++; | |
2742 | if (*p) | |
fca177d4 | 2743 | tty->TS_set_window = "\033v%C %C %C %C "; |
08a24c47 JB |
2744 | } |
2745 | /* Termcap entry often fails to have :in: flag */ | |
7e59217d | 2746 | device->must_write_spaces = 1; |
08a24c47 JB |
2747 | /* :ti string typically fails to have \E^G! in it */ |
2748 | /* This limits scope of insert-char to one line. */ | |
fca177d4 | 2749 | strcpy (area, tty->TS_termcap_modes); |
08a24c47 | 2750 | strcat (area, "\033\007!"); |
fca177d4 | 2751 | tty->TS_termcap_modes = area; |
08a24c47 | 2752 | area += strlen (area) + 1; |
6548cf00 | 2753 | p = AbsPosition (tty); |
08a24c47 | 2754 | /* Change all %+ parameters to %C, to handle |
28d440ab | 2755 | values above 96 correctly for the C100. */ |
08a24c47 | 2756 | while (*p) |
28d440ab KL |
2757 | { |
2758 | if (p[0] == '%' && p[1] == '+') | |
2759 | p[1] = 'C'; | |
2760 | p++; | |
2761 | } | |
08a24c47 JB |
2762 | } |
2763 | ||
0a125897 | 2764 | tty->specified_window = FrameRows (tty); |
08a24c47 | 2765 | |
6548cf00 | 2766 | if (Wcm_init (tty) == -1) /* can't do cursor motion */ |
3224dac1 | 2767 | { |
7e59217d | 2768 | maybe_fatal (must_succeed, NULL, device, |
3224dac1 | 2769 | "Terminal type \"%s\" is not powerful enough to run Emacs", |
08a24c47 | 2770 | #ifdef VMS |
3224dac1 | 2771 | "Terminal type \"%s\" is not powerful enough to run Emacs.\n\ |
08a24c47 JB |
2772 | It lacks the ability to position the cursor.\n\ |
2773 | If that is not the actual type of terminal you have, use either the\n\ | |
2774 | DCL command `SET TERMINAL/DEVICE= ...' for DEC-compatible terminals,\n\ | |
e12c1054 | 2775 | or `define EMACS_TERM \"terminal type\"' for non-DEC terminals.", |
37dad45a RS |
2776 | #else /* not VMS */ |
2777 | # ifdef TERMINFO | |
3224dac1 | 2778 | "Terminal type \"%s\" is not powerful enough to run Emacs.\n\ |
0a125897 KL |
2779 | It lacks the ability to position the cursor.\n\ |
2780 | If that is not the actual type of terminal you have,\n\ | |
37dad45a RS |
2781 | use the Bourne shell command `TERM=... export TERM' (C-shell:\n\ |
2782 | `setenv TERM ...') to specify the correct type. It may be necessary\n\ | |
e12c1054 | 2783 | to do `unset TERMINFO' (C-shell: `unsetenv TERMINFO') as well.", |
37dad45a | 2784 | # else /* TERMCAP */ |
3224dac1 | 2785 | "Terminal type \"%s\" is not powerful enough to run Emacs.\n\ |
0a125897 | 2786 | It lacks the ability to position the cursor.\n\ |
08a24c47 | 2787 | If that is not the actual type of terminal you have,\n\ |
c5a9c3e6 RS |
2788 | use the Bourne shell command `TERM=... export TERM' (C-shell:\n\ |
2789 | `setenv TERM ...') to specify the correct type. It may be necessary\n\ | |
e12c1054 | 2790 | to do `unset TERMCAP' (C-shell: `unsetenv TERMCAP') as well.", |
37dad45a RS |
2791 | # endif /* TERMINFO */ |
2792 | #endif /*VMS */ | |
3224dac1 | 2793 | terminal_type); |
fca177d4 | 2794 | } |
daf01701 | 2795 | |
0a125897 | 2796 | if (FrameRows (tty) <= 0 || FrameCols (tty) <= 0) |
7e59217d | 2797 | maybe_fatal (must_succeed, NULL, device, |
3224dac1 KL |
2798 | "Could not determine the frame size", |
2799 | "Could not determine the frame size"); | |
08a24c47 | 2800 | |
fca177d4 KL |
2801 | tty->delete_in_insert_mode |
2802 | = tty->TS_delete_mode && tty->TS_insert_mode | |
2803 | && !strcmp (tty->TS_delete_mode, tty->TS_insert_mode); | |
08a24c47 | 2804 | |
fca177d4 KL |
2805 | tty->se_is_so = (tty->TS_standout_mode |
2806 | && tty->TS_end_standout_mode | |
2807 | && !strcmp (tty->TS_standout_mode, tty->TS_end_standout_mode)); | |
08a24c47 | 2808 | |
0b0d3e0b | 2809 | UseTabs (tty) = tabs_safe_p (fileno (tty->input)) && TabWidth (tty) == 8; |
08a24c47 | 2810 | |
7e59217d | 2811 | device->scroll_region_ok |
6548cf00 | 2812 | = (tty->Wcm->cm_abs |
fca177d4 | 2813 | && (tty->TS_set_window || tty->TS_set_scroll_region || tty->TS_set_scroll_region_1)); |
08a24c47 | 2814 | |
7e59217d | 2815 | device->line_ins_del_ok |
fca177d4 KL |
2816 | = (((tty->TS_ins_line || tty->TS_ins_multi_lines) |
2817 | && (tty->TS_del_line || tty->TS_del_multi_lines)) | |
7e59217d | 2818 | || (device->scroll_region_ok |
fca177d4 | 2819 | && tty->TS_fwd_scroll && tty->TS_rev_scroll)); |
28d440ab | 2820 | |
7e59217d | 2821 | device->char_ins_del_ok |
fca177d4 KL |
2822 | = ((tty->TS_ins_char || tty->TS_insert_mode |
2823 | || tty->TS_pad_inserted_char || tty->TS_ins_multi_chars) | |
2824 | && (tty->TS_del_char || tty->TS_del_multi_chars)); | |
8a56675d | 2825 | |
7e59217d | 2826 | device->fast_clear_end_of_line = tty->TS_clr_line != 0; |
08a24c47 | 2827 | |
0b0d3e0b | 2828 | init_baud_rate (fileno (tty->input)); |
20a558dc | 2829 | |
daf01701 KL |
2830 | #ifdef AIXHFT |
2831 | /* The HFT system on AIX doesn't optimize for scrolling, so it's | |
2832 | really ugly at times. */ | |
7e59217d KL |
2833 | device->line_ins_del_ok = 0; |
2834 | device->char_ins_del_ok = 0; | |
daf01701 KL |
2835 | #endif |
2836 | ||
0a125897 KL |
2837 | /* Don't do this. I think termcap may still need the buffer. */ |
2838 | /* xfree (buffer); */ | |
28d440ab | 2839 | |
0a125897 KL |
2840 | /* Init system terminal modes (RAW or CBREAK, etc.). */ |
2841 | init_sys_modes (tty); | |
daf01701 | 2842 | |
7e59217d | 2843 | return device; |
7b00d185 | 2844 | #endif /* not WINDOWSNT */ |
08a24c47 JB |
2845 | } |
2846 | ||
a4c6993d | 2847 | /* Auxiliary error-handling function for init_tty. |
7e59217d | 2848 | Free BUFFER and delete DEVICE, then call error or fatal |
da8e1115 KL |
2849 | with str1 or str2, respectively, according to MUST_SUCCEED. */ |
2850 | ||
3224dac1 | 2851 | static void |
7e59217d | 2852 | maybe_fatal (must_succeed, buffer, device, str1, str2, arg1, arg2) |
3224dac1 KL |
2853 | int must_succeed; |
2854 | char *buffer; | |
7e59217d | 2855 | struct device *device; |
3224dac1 KL |
2856 | char *str1, *str2, *arg1, *arg2; |
2857 | { | |
2858 | if (buffer) | |
2859 | xfree (buffer); | |
2860 | ||
7e59217d KL |
2861 | if (device) |
2862 | delete_tty (device); | |
3224dac1 KL |
2863 | |
2864 | if (must_succeed) | |
2865 | fatal (str2, arg1, arg2); | |
2866 | else | |
2867 | error (str1, arg1, arg2); | |
2868 | ||
2869 | abort (); | |
2870 | } | |
2871 | ||
08a24c47 | 2872 | /* VARARGS 1 */ |
dfcf069d | 2873 | void |
08a24c47 | 2874 | fatal (str, arg1, arg2) |
4746118a | 2875 | char *str, *arg1, *arg2; |
08a24c47 JB |
2876 | { |
2877 | fprintf (stderr, "emacs: "); | |
2878 | fprintf (stderr, str, arg1, arg2); | |
e12c1054 | 2879 | fprintf (stderr, "\n"); |
08a24c47 JB |
2880 | fflush (stderr); |
2881 | exit (1); | |
2882 | } | |
07c57952 | 2883 | |
819b8f00 KL |
2884 | \f |
2885 | ||
0a125897 KL |
2886 | static int deleting_tty = 0; |
2887 | ||
da8e1115 KL |
2888 | |
2889 | /* Delete the given terminal device, closing all frames on it. */ | |
2890 | ||
ed8dad6b | 2891 | static void |
7e59217d | 2892 | delete_tty (struct device *device) |
fca177d4 | 2893 | { |
428a555e | 2894 | struct tty_display_info *tty; |
fca177d4 | 2895 | Lisp_Object tail, frame; |
4d553a13 | 2896 | char *tty_name; |
7e59217d | 2897 | int last_device; |
4d553a13 | 2898 | |
0a125897 KL |
2899 | if (deleting_tty) |
2900 | /* We get a recursive call when we delete the last frame on this | |
7e59217d | 2901 | device. */ |
0a125897 | 2902 | return; |
fca177d4 | 2903 | |
7e59217d | 2904 | if (device->type != output_termcap) |
428a555e KL |
2905 | abort (); |
2906 | ||
7e59217d | 2907 | tty = device->display_info.tty; |
428a555e | 2908 | |
7e59217d | 2909 | last_device = 1; |
81be1a93 KL |
2910 | FOR_EACH_FRAME (tail, frame) |
2911 | { | |
2912 | struct frame *f = XFRAME (frame); | |
2913 | if (FRAME_LIVE_P (f) && (!FRAME_TERMCAP_P (f) || FRAME_TTY (f) != tty)) | |
2914 | { | |
7e59217d | 2915 | last_device = 0; |
81be1a93 KL |
2916 | break; |
2917 | } | |
2918 | } | |
7e59217d KL |
2919 | if (last_device) |
2920 | error ("Attempt to delete the sole display device with live frames"); | |
81be1a93 | 2921 | |
fca177d4 KL |
2922 | if (tty == tty_list) |
2923 | tty_list = tty->next; | |
2924 | else | |
2925 | { | |
28d7d09f | 2926 | struct tty_display_info *p; |
fca177d4 KL |
2927 | for (p = tty_list; p && p->next != tty; p = p->next) |
2928 | ; | |
2929 | ||
2930 | if (! p) | |
2931 | /* This should not happen. */ | |
2932 | abort (); | |
2933 | ||
0a125897 KL |
2934 | p->next = tty->next; |
2935 | tty->next = 0; | |
fca177d4 KL |
2936 | } |
2937 | ||
81be1a93 KL |
2938 | deleting_tty = 1; |
2939 | ||
04c3243c KL |
2940 | FOR_EACH_FRAME (tail, frame) |
2941 | { | |
2942 | struct frame *f = XFRAME (frame); | |
daf01701 | 2943 | if (FRAME_TERMCAP_P (f) && FRAME_LIVE_P (f) && FRAME_TTY (f) == tty) |
04c3243c KL |
2944 | { |
2945 | Fdelete_frame (frame, Qt); | |
04c3243c KL |
2946 | } |
2947 | } | |
daf01701 | 2948 | |
7e59217d KL |
2949 | /* reset_sys_modes needs a valid device, so this call needs to be |
2950 | before delete_device. */ | |
04c3243c | 2951 | reset_sys_modes (tty); |
fca177d4 | 2952 | |
7e59217d | 2953 | delete_device (device); |
3224dac1 | 2954 | |
4d553a13 | 2955 | tty_name = tty->name; |
fca177d4 KL |
2956 | if (tty->type) |
2957 | xfree (tty->type); | |
daf01701 | 2958 | |
fca177d4 | 2959 | if (tty->input) |
819b8f00 KL |
2960 | { |
2961 | delete_keyboard_wait_descriptor (fileno (tty->input)); | |
2962 | if (tty->input != stdin) | |
2963 | fclose (tty->input); | |
2964 | } | |
2965 | if (tty->output && tty->output != stdout && tty->output != tty->input) | |
fca177d4 KL |
2966 | fclose (tty->output); |
2967 | if (tty->termscript) | |
2968 | fclose (tty->termscript); | |
daf01701 | 2969 | |
fca177d4 | 2970 | if (tty->old_tty) |
0a125897 | 2971 | xfree (tty->old_tty); |
fca177d4 | 2972 | |
0a125897 | 2973 | if (tty->Wcm) |
daf01701 KL |
2974 | xfree (tty->Wcm); |
2975 | ||
28d7d09f | 2976 | bzero (tty, sizeof (struct tty_display_info)); |
fca177d4 | 2977 | xfree (tty); |
0a125897 | 2978 | deleting_tty = 0; |
fca177d4 KL |
2979 | } |
2980 | ||
428a555e KL |
2981 | \f |
2982 | ||
28d7d09f | 2983 | /* Mark the pointers in the tty_display_info objects. |
819b8f00 | 2984 | Called by the Fgarbage_collector. */ |
da8e1115 | 2985 | |
fca177d4 | 2986 | void |
ed8dad6b | 2987 | mark_ttys (void) |
fca177d4 | 2988 | { |
28d7d09f | 2989 | struct tty_display_info *tty; |
0c72d684 | 2990 | |
819b8f00 | 2991 | for (tty = tty_list; tty; tty = tty->next) |
fca177d4 | 2992 | { |
819b8f00 KL |
2993 | if (tty->top_frame) |
2994 | mark_object (tty->top_frame); | |
fca177d4 KL |
2995 | } |
2996 | } | |
2997 | ||
428a555e KL |
2998 | \f |
2999 | ||
819b8f00 KL |
3000 | void |
3001 | syms_of_term () | |
3002 | { | |
3003 | DEFVAR_BOOL ("system-uses-terminfo", &system_uses_terminfo, | |
3004 | doc: /* Non-nil means the system uses terminfo rather than termcap. | |
3005 | This variable can be used by terminal emulator packages. */); | |
3006 | #ifdef TERMINFO | |
3007 | system_uses_terminfo = 1; | |
3008 | #else | |
3009 | system_uses_terminfo = 0; | |
3010 | #endif | |
3011 | ||
0b0d3e0b KL |
3012 | DEFVAR_LISP ("suspend-tty-functions", &Vsuspend_tty_functions, |
3013 | doc: /* Functions to be run after suspending a tty. | |
3014 | The functions are run with one argument, the name of the tty to be suspended. | |
3015 | See `suspend-tty'. */); | |
3016 | Vsuspend_tty_functions = Qnil; | |
3017 | ||
3018 | ||
3019 | DEFVAR_LISP ("resume-tty-functions", &Vresume_tty_functions, | |
3020 | doc: /* Functions to be run after resuming a tty. | |
3021 | The functions are run with one argument, the name of the tty that was revived. | |
3022 | See `resume-tty'. */); | |
3023 | Vresume_tty_functions = Qnil; | |
3024 | ||
819b8f00 KL |
3025 | defsubr (&Stty_display_color_p); |
3026 | defsubr (&Stty_display_color_cells); | |
072d84a6 | 3027 | defsubr (&Stty_no_underline); |
b6660415 | 3028 | defsubr (&Sdisplay_tty_type); |
4a933ef8 | 3029 | defsubr (&Sdisplay_controlling_tty_p); |
0b0d3e0b KL |
3030 | defsubr (&Ssuspend_tty); |
3031 | defsubr (&Sresume_tty); | |
819b8f00 KL |
3032 | } |
3033 | ||
3034 | ||
3035 | ||
ab5796a9 MB |
3036 | /* arch-tag: 498e7449-6f2e-45e2-91dd-b7d4ca488193 |
3037 | (do not change this comment) */ |