Commit | Line | Data |
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08a24c47 | 1 | /* terminal control module for terminals described by TERMCAP |
f2a00342 | 2 | Copyright (C) 1985, 1986, 1987, 1993, 1994 Free Software Foundation, Inc. |
08a24c47 JB |
3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
4746118a | 8 | the Free Software Foundation; either version 2, or (at your option) |
08a24c47 JB |
9 | any later version. |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
19 | ||
20 | ||
21 | #include <stdio.h> | |
22 | #include <ctype.h> | |
18160b98 | 23 | #include <config.h> |
08a24c47 JB |
24 | #include "termchar.h" |
25 | #include "termopts.h" | |
26 | #include "cm.h" | |
27 | #undef NULL | |
28 | #include "lisp.h" | |
ff11dfa1 | 29 | #include "frame.h" |
08a24c47 JB |
30 | #include "disptab.h" |
31 | #include "termhooks.h" | |
5c2c7893 | 32 | #include "keyboard.h" |
08a24c47 JB |
33 | |
34 | #define max(a, b) ((a) > (b) ? (a) : (b)) | |
35 | #define min(a, b) ((a) < (b) ? (a) : (b)) | |
36 | ||
ff11dfa1 | 37 | #define OUTPUT(a) tputs (a, FRAME_HEIGHT (selected_frame) - curY, cmputc) |
08a24c47 JB |
38 | #define OUTPUT1(a) tputs (a, 1, cmputc) |
39 | #define OUTPUTL(a, lines) tputs (a, lines, cmputc) | |
ff11dfa1 | 40 | #define OUTPUT_IF(a) { if (a) tputs (a, FRAME_HEIGHT (selected_frame) - curY, cmputc); } |
08a24c47 JB |
41 | #define OUTPUT1_IF(a) { if (a) tputs (a, 1, cmputc); } |
42 | ||
eb8c3be9 | 43 | /* Terminal characteristics that higher levels want to look at. |
08a24c47 JB |
44 | These are all extern'd in termchar.h */ |
45 | ||
08a24c47 JB |
46 | int must_write_spaces; /* Nonzero means spaces in the text |
47 | must actually be output; can't just skip | |
48 | over some columns to leave them blank. */ | |
49 | int min_padding_speed; /* Speed below which no padding necessary */ | |
50 | ||
51 | int line_ins_del_ok; /* Terminal can insert and delete lines */ | |
52 | int char_ins_del_ok; /* Terminal can insert and delete chars */ | |
53 | int scroll_region_ok; /* Terminal supports setting the | |
54 | scroll window */ | |
ff11dfa1 | 55 | int memory_below_frame; /* Terminal remembers lines |
08a24c47 JB |
56 | scrolled off bottom */ |
57 | int fast_clear_end_of_line; /* Terminal has a `ce' string */ | |
58 | ||
59 | int dont_calculate_costs; /* Nonzero means don't bother computing */ | |
60 | /* various cost tables; we won't use them. */ | |
61 | ||
ff11dfa1 | 62 | /* Nonzero means no need to redraw the entire frame on resuming |
08a24c47 JB |
63 | a suspended Emacs. This is useful on terminals with multiple pages, |
64 | where one page is used for Emacs and another for all else. */ | |
65 | int no_redraw_on_reenter; | |
66 | ||
67 | /* Hook functions that you can set to snap out the functions in this file. | |
68 | These are all extern'd in termhooks.h */ | |
69 | ||
70 | int (*cursor_to_hook) (); | |
71 | int (*raw_cursor_to_hook) (); | |
72 | ||
73 | int (*clear_to_end_hook) (); | |
ff11dfa1 | 74 | int (*clear_frame_hook) (); |
08a24c47 JB |
75 | int (*clear_end_of_line_hook) (); |
76 | ||
77 | int (*ins_del_lines_hook) (); | |
78 | ||
79 | int (*change_line_highlight_hook) (); | |
80 | int (*reassert_line_highlight_hook) (); | |
81 | ||
82 | int (*insert_glyphs_hook) (); | |
83 | int (*write_glyphs_hook) (); | |
84 | int (*delete_glyphs_hook) (); | |
85 | ||
86 | int (*ring_bell_hook) (); | |
87 | ||
88 | int (*reset_terminal_modes_hook) (); | |
89 | int (*set_terminal_modes_hook) (); | |
90 | int (*update_begin_hook) (); | |
91 | int (*update_end_hook) (); | |
92 | int (*set_terminal_window_hook) (); | |
93 | ||
94 | int (*read_socket_hook) (); | |
95 | ||
55cc089c RS |
96 | int (*frame_up_to_date_hook) (); |
97 | ||
20a558dc | 98 | /* Return the current position of the mouse. |
371fbaeb JB |
99 | |
100 | Set *f to the frame the mouse is in, or zero if the mouse is in no | |
101 | Emacs frame. If it is set to zero, all the other arguments are | |
102 | garbage. | |
103 | ||
a3c87d4e JB |
104 | If the motion started in a scroll bar, set *bar_window to the |
105 | scroll bar's window, *part to the part the mouse is currently over, | |
106 | *x to the position of the mouse along the scroll bar, and *y to the | |
107 | overall length of the scroll bar. | |
371fbaeb JB |
108 | |
109 | Otherwise, set *bar_window to Qnil, and *x and *y to the column and | |
110 | row of the character cell the mouse is over. | |
111 | ||
112 | Set *time to the time the mouse was at the returned position. | |
113 | ||
114 | This should clear mouse_moved until the next motion | |
115 | event arrives. */ | |
ff11dfa1 | 116 | void (*mouse_position_hook) ( /* FRAME_PTR *f, |
371fbaeb | 117 | Lisp_Object *bar_window, |
a3c87d4e | 118 | enum scroll_bar_part *part, |
20a558dc JB |
119 | Lisp_Object *x, |
120 | Lisp_Object *y, | |
121 | unsigned long *time */ ); | |
08a24c47 | 122 | |
ff11dfa1 JB |
123 | /* When reading from a minibuffer in a different frame, Emacs wants |
124 | to shift the highlight from the selected frame to the minibuffer's | |
125 | frame; under X, this means it lies about where the focus is. | |
2e146aa4 JB |
126 | This hook tells the window system code to re-decide where to put |
127 | the highlight. */ | |
ff11dfa1 | 128 | void (*frame_rehighlight_hook) ( /* FRAME_PTR f */ ); |
2e146aa4 | 129 | |
dbc4e1c1 JB |
130 | /* If we're displaying frames using a window system that can stack |
131 | frames on top of each other, this hook allows you to bring a frame | |
132 | to the front, or bury it behind all the other windows. If this | |
133 | hook is zero, that means the device we're displaying on doesn't | |
134 | support overlapping frames, so there's no need to raise or lower | |
135 | anything. | |
136 | ||
137 | If RAISE is non-zero, F is brought to the front, before all other | |
138 | windows. If RAISE is zero, F is sent to the back, behind all other | |
139 | windows. */ | |
140 | void (*frame_raise_lower_hook) ( /* FRAME_PTR f, int raise */ ); | |
141 | ||
a3c87d4e | 142 | /* Set the vertical scroll bar for WINDOW to have its upper left corner |
371fbaeb JB |
143 | at (TOP, LEFT), and be LENGTH rows high. Set its handle to |
144 | indicate that we are displaying PORTION characters out of a total | |
145 | of WHOLE characters, starting at POSITION. If WINDOW doesn't yet | |
a3c87d4e JB |
146 | have a scroll bar, create one for it. */ |
147 | void (*set_vertical_scroll_bar_hook) | |
371fbaeb | 148 | ( /* struct window *window, |
20a558dc JB |
149 | int portion, int whole, int position */ ); |
150 | ||
371fbaeb | 151 | |
20a558dc | 152 | /* The following three hooks are used when we're doing a thorough |
a3c87d4e | 153 | redisplay of the frame. We don't explicitly know which scroll bars |
20a558dc JB |
154 | are going to be deleted, because keeping track of when windows go |
155 | away is a real pain - can you say set-window-configuration? | |
156 | Instead, we just assert at the beginning of redisplay that *all* | |
a3c87d4e | 157 | scroll bars are to be removed, and then save scroll bars from the |
20a558dc JB |
158 | firey pit when we actually redisplay their window. */ |
159 | ||
a3c87d4e JB |
160 | /* Arrange for all scroll bars on FRAME to be removed at the next call |
161 | to `*judge_scroll_bars_hook'. A scroll bar may be spared if | |
162 | `*redeem_scroll_bar_hook' is applied to its window before the judgement. | |
20a558dc | 163 | |
371fbaeb | 164 | This should be applied to each frame each time its window tree is |
a3c87d4e JB |
165 | redisplayed, even if it is not displaying scroll bars at the moment; |
166 | if the HAS_SCROLL_BARS flag has just been turned off, only calling | |
167 | this and the judge_scroll_bars_hook will get rid of them. | |
371fbaeb JB |
168 | |
169 | If non-zero, this hook should be safe to apply to any frame, | |
a3c87d4e | 170 | whether or not it can support scroll bars, and whether or not it is |
371fbaeb | 171 | currently displaying them. */ |
a3c87d4e | 172 | void (*condemn_scroll_bars_hook)( /* FRAME_PTR *frame */ ); |
371fbaeb | 173 | |
a3c87d4e JB |
174 | /* Unmark WINDOW's scroll bar for deletion in this judgement cycle. |
175 | Note that it's okay to redeem a scroll bar that is not condemned. */ | |
176 | void (*redeem_scroll_bar_hook)( /* struct window *window */ ); | |
20a558dc | 177 | |
a3c87d4e JB |
178 | /* Remove all scroll bars on FRAME that haven't been saved since the |
179 | last call to `*condemn_scroll_bars_hook'. | |
20a558dc | 180 | |
371fbaeb | 181 | This should be applied to each frame after each time its window |
a3c87d4e JB |
182 | tree is redisplayed, even if it is not displaying scroll bars at the |
183 | moment; if the HAS_SCROLL_BARS flag has just been turned off, only | |
184 | calling this and condemn_scroll_bars_hook will get rid of them. | |
371fbaeb JB |
185 | |
186 | If non-zero, this hook should be safe to apply to any frame, | |
a3c87d4e | 187 | whether or not it can support scroll bars, and whether or not it is |
371fbaeb | 188 | currently displaying them. */ |
a3c87d4e | 189 | void (*judge_scroll_bars_hook)( /* FRAME_PTR *FRAME */ ); |
20a558dc JB |
190 | |
191 | ||
08a24c47 JB |
192 | /* Strings, numbers and flags taken from the termcap entry. */ |
193 | ||
194 | char *TS_ins_line; /* termcap "al" */ | |
195 | char *TS_ins_multi_lines; /* "AL" (one parameter, # lines to insert) */ | |
196 | char *TS_bell; /* "bl" */ | |
197 | char *TS_clr_to_bottom; /* "cd" */ | |
198 | char *TS_clr_line; /* "ce", clear to end of line */ | |
ff11dfa1 | 199 | char *TS_clr_frame; /* "cl" */ |
08a24c47 JB |
200 | char *TS_set_scroll_region; /* "cs" (2 params, first line and last line) */ |
201 | char *TS_set_scroll_region_1; /* "cS" (4 params: total lines, | |
202 | lines above scroll region, lines below it, | |
203 | total lines again) */ | |
204 | char *TS_del_char; /* "dc" */ | |
205 | char *TS_del_multi_chars; /* "DC" (one parameter, # chars to delete) */ | |
206 | char *TS_del_line; /* "dl" */ | |
207 | char *TS_del_multi_lines; /* "DL" (one parameter, # lines to delete) */ | |
208 | char *TS_delete_mode; /* "dm", enter character-delete mode */ | |
209 | char *TS_end_delete_mode; /* "ed", leave character-delete mode */ | |
210 | char *TS_end_insert_mode; /* "ei", leave character-insert mode */ | |
211 | char *TS_ins_char; /* "ic" */ | |
212 | char *TS_ins_multi_chars; /* "IC" (one parameter, # chars to insert) */ | |
213 | char *TS_insert_mode; /* "im", enter character-insert mode */ | |
214 | char *TS_pad_inserted_char; /* "ip". Just padding, no commands. */ | |
215 | char *TS_end_keypad_mode; /* "ke" */ | |
216 | char *TS_keypad_mode; /* "ks" */ | |
217 | char *TS_pad_char; /* "pc", char to use as padding */ | |
218 | char *TS_repeat; /* "rp" (2 params, # times to repeat | |
219 | and character to be repeated) */ | |
220 | char *TS_end_standout_mode; /* "se" */ | |
221 | char *TS_fwd_scroll; /* "sf" */ | |
222 | char *TS_standout_mode; /* "so" */ | |
223 | char *TS_rev_scroll; /* "sr" */ | |
224 | char *TS_end_termcap_modes; /* "te" */ | |
225 | char *TS_termcap_modes; /* "ti" */ | |
226 | char *TS_visible_bell; /* "vb" */ | |
227 | char *TS_end_visual_mode; /* "ve" */ | |
228 | char *TS_visual_mode; /* "vi" */ | |
229 | char *TS_set_window; /* "wi" (4 params, start and end of window, | |
230 | each as vpos and hpos) */ | |
231 | ||
232 | int TF_hazeltine; /* termcap hz flag. */ | |
233 | int TF_insmode_motion; /* termcap mi flag: can move while in insert mode. */ | |
234 | int TF_standout_motion; /* termcap mi flag: can move while in standout mode. */ | |
235 | int TF_underscore; /* termcap ul flag: _ underlines if overstruck on | |
236 | nonblank position. Must clear before writing _. */ | |
237 | int TF_teleray; /* termcap xt flag: many weird consequences. | |
238 | For t1061. */ | |
239 | ||
240 | int TF_xs; /* Nonzero for "xs". If set together with | |
241 | TN_standout_width == 0, it means don't bother | |
242 | to write any end-standout cookies. */ | |
243 | ||
244 | int TN_standout_width; /* termcap sg number: width occupied by standout | |
245 | markers */ | |
246 | ||
247 | static int RPov; /* # chars to start a TS_repeat */ | |
248 | ||
249 | static int delete_in_insert_mode; /* delete mode == insert mode */ | |
250 | ||
251 | static int se_is_so; /* 1 if same string both enters and leaves | |
252 | standout mode */ | |
253 | ||
254 | /* internal state */ | |
255 | ||
256 | /* Number of chars of space used for standout marker at beginning of line, | |
257 | or'd with 0100. Zero if no standout marker at all. | |
258 | ||
259 | Used IFF TN_standout_width >= 0. */ | |
260 | ||
261 | static char *chars_wasted; | |
262 | static char *copybuf; | |
263 | ||
264 | /* nonzero means supposed to write text in standout mode. */ | |
265 | int standout_requested; | |
266 | ||
267 | int insert_mode; /* Nonzero when in insert mode. */ | |
268 | int standout_mode; /* Nonzero when in standout mode. */ | |
269 | ||
270 | /* Size of window specified by higher levels. | |
ff11dfa1 | 271 | This is the number of lines, from the top of frame downwards, |
08a24c47 JB |
272 | which can participate in insert-line/delete-line operations. |
273 | ||
ff11dfa1 | 274 | Effectively it excludes the bottom frame_height - specified_window_size |
08a24c47 JB |
275 | lines from those operations. */ |
276 | ||
277 | int specified_window; | |
278 | ||
ff11dfa1 | 279 | /* Frame currently being redisplayed; 0 if not currently redisplaying. |
08a24c47 JB |
280 | (Direct output does not count). */ |
281 | ||
ff11dfa1 | 282 | FRAME_PTR updating_frame; |
08a24c47 | 283 | |
07c57952 KH |
284 | /* Provided for lisp packages. */ |
285 | static int system_uses_terminfo; | |
286 | ||
08a24c47 JB |
287 | char *tparam (); |
288 | \f | |
289 | ring_bell () | |
290 | { | |
1820044b | 291 | if (! FRAME_TERMCAP_P (selected_frame)) |
08a24c47 JB |
292 | { |
293 | (*ring_bell_hook) (); | |
294 | return; | |
295 | } | |
296 | OUTPUT (TS_visible_bell && visible_bell ? TS_visible_bell : TS_bell); | |
297 | } | |
298 | ||
299 | set_terminal_modes () | |
300 | { | |
1820044b | 301 | if (! FRAME_TERMCAP_P (selected_frame)) |
08a24c47 JB |
302 | { |
303 | (*set_terminal_modes_hook) (); | |
304 | return; | |
305 | } | |
306 | OUTPUT_IF (TS_termcap_modes); | |
307 | OUTPUT_IF (TS_visual_mode); | |
308 | OUTPUT_IF (TS_keypad_mode); | |
309 | losecursor (); | |
310 | } | |
311 | ||
312 | reset_terminal_modes () | |
313 | { | |
1820044b | 314 | if (! FRAME_TERMCAP_P (selected_frame)) |
08a24c47 JB |
315 | { |
316 | (*reset_terminal_modes_hook) (); | |
317 | return; | |
318 | } | |
319 | if (TN_standout_width < 0) | |
320 | turn_off_highlight (); | |
321 | turn_off_insert (); | |
322 | OUTPUT_IF (TS_end_keypad_mode); | |
323 | OUTPUT_IF (TS_end_visual_mode); | |
324 | OUTPUT_IF (TS_end_termcap_modes); | |
325 | /* Output raw CR so kernel can track the cursor hpos. */ | |
326 | /* But on magic-cookie terminals this can erase an end-standout marker and | |
ff11dfa1 | 327 | cause the rest of the frame to be in standout, so move down first. */ |
08a24c47 JB |
328 | if (TN_standout_width >= 0) |
329 | cmputc ('\n'); | |
330 | cmputc ('\r'); | |
331 | } | |
332 | ||
ff11dfa1 JB |
333 | update_begin (f) |
334 | FRAME_PTR f; | |
08a24c47 | 335 | { |
ff11dfa1 | 336 | updating_frame = f; |
1820044b | 337 | if (! FRAME_TERMCAP_P (updating_frame)) |
ff11dfa1 | 338 | (*update_begin_hook) (f); |
08a24c47 JB |
339 | } |
340 | ||
ff11dfa1 JB |
341 | update_end (f) |
342 | FRAME_PTR f; | |
08a24c47 | 343 | { |
1820044b | 344 | if (! FRAME_TERMCAP_P (updating_frame)) |
08a24c47 | 345 | { |
ff11dfa1 | 346 | updating_frame = 0; |
7a8e3e30 | 347 | (*update_end_hook) (f); |
08a24c47 JB |
348 | return; |
349 | } | |
350 | turn_off_insert (); | |
351 | background_highlight (); | |
352 | standout_requested = 0; | |
ff11dfa1 | 353 | updating_frame = 0; |
08a24c47 JB |
354 | } |
355 | ||
356 | set_terminal_window (size) | |
357 | int size; | |
358 | { | |
1820044b | 359 | if (! FRAME_TERMCAP_P (updating_frame)) |
08a24c47 JB |
360 | { |
361 | (*set_terminal_window_hook) (size); | |
362 | return; | |
363 | } | |
ff11dfa1 | 364 | specified_window = size ? size : FRAME_HEIGHT (selected_frame); |
08a24c47 JB |
365 | if (!scroll_region_ok) |
366 | return; | |
367 | set_scroll_region (0, specified_window); | |
368 | } | |
369 | ||
370 | set_scroll_region (start, stop) | |
371 | int start, stop; | |
372 | { | |
373 | char *buf; | |
374 | if (TS_set_scroll_region) | |
375 | { | |
376 | buf = tparam (TS_set_scroll_region, 0, 0, start, stop - 1); | |
377 | } | |
378 | else if (TS_set_scroll_region_1) | |
379 | { | |
380 | buf = tparam (TS_set_scroll_region_1, 0, 0, | |
ff11dfa1 JB |
381 | FRAME_HEIGHT (selected_frame), start, |
382 | FRAME_HEIGHT (selected_frame) - stop, | |
383 | FRAME_HEIGHT (selected_frame)); | |
08a24c47 JB |
384 | } |
385 | else | |
386 | { | |
ff11dfa1 | 387 | buf = tparam (TS_set_window, 0, 0, start, 0, stop, FRAME_WIDTH (selected_frame)); |
08a24c47 JB |
388 | } |
389 | OUTPUT (buf); | |
9ac0d9e0 | 390 | xfree (buf); |
08a24c47 JB |
391 | losecursor (); |
392 | } | |
393 | \f | |
394 | turn_on_insert () | |
395 | { | |
396 | if (!insert_mode) | |
397 | OUTPUT (TS_insert_mode); | |
398 | insert_mode = 1; | |
399 | } | |
400 | ||
401 | turn_off_insert () | |
402 | { | |
403 | if (insert_mode) | |
404 | OUTPUT (TS_end_insert_mode); | |
405 | insert_mode = 0; | |
406 | } | |
407 | \f | |
408 | /* Handle highlighting when TN_standout_width (termcap sg) is not specified. | |
409 | In these terminals, output is affected by the value of standout | |
410 | mode when the output is written. | |
411 | ||
412 | These functions are called on all terminals, but do nothing | |
413 | on terminals whose standout mode does not work that way. */ | |
414 | ||
415 | turn_off_highlight () | |
416 | { | |
417 | if (TN_standout_width < 0) | |
418 | { | |
419 | if (standout_mode) | |
420 | OUTPUT_IF (TS_end_standout_mode); | |
421 | standout_mode = 0; | |
422 | } | |
423 | } | |
424 | ||
425 | turn_on_highlight () | |
426 | { | |
427 | if (TN_standout_width < 0) | |
428 | { | |
429 | if (!standout_mode) | |
430 | OUTPUT_IF (TS_standout_mode); | |
431 | standout_mode = 1; | |
432 | } | |
433 | } | |
434 | ||
435 | /* Set standout mode to the state it should be in for | |
436 | empty space inside windows. What this is, | |
437 | depends on the user option inverse-video. */ | |
438 | ||
439 | background_highlight () | |
440 | { | |
441 | if (TN_standout_width >= 0) | |
442 | return; | |
443 | if (inverse_video) | |
444 | turn_on_highlight (); | |
445 | else | |
446 | turn_off_highlight (); | |
447 | } | |
448 | ||
449 | /* Set standout mode to the mode specified for the text to be output. */ | |
450 | ||
451 | static | |
452 | highlight_if_desired () | |
453 | { | |
454 | if (TN_standout_width >= 0) | |
455 | return; | |
456 | if (!inverse_video == !standout_requested) | |
457 | turn_off_highlight (); | |
458 | else | |
459 | turn_on_highlight (); | |
460 | } | |
461 | \f | |
462 | /* Handle standout mode for terminals in which TN_standout_width >= 0. | |
463 | On these terminals, standout is controlled by markers that | |
ff11dfa1 | 464 | live inside the terminal's memory. TN_standout_width is the width |
08a24c47 JB |
465 | that the marker occupies in memory. Standout runs from the marker |
466 | to the end of the line on some terminals, or to the next | |
467 | turn-off-standout marker (TS_end_standout_mode) string | |
468 | on other terminals. */ | |
469 | ||
470 | /* Write a standout marker or end-standout marker at the front of the line | |
471 | at vertical position vpos. */ | |
472 | ||
473 | write_standout_marker (flag, vpos) | |
474 | int flag, vpos; | |
475 | { | |
476 | if (flag || (TS_end_standout_mode && !TF_teleray && !se_is_so | |
477 | && !(TF_xs && TN_standout_width == 0))) | |
478 | { | |
479 | cmgoto (vpos, 0); | |
480 | cmplus (TN_standout_width); | |
481 | OUTPUT (flag ? TS_standout_mode : TS_end_standout_mode); | |
482 | chars_wasted[curY] = TN_standout_width | 0100; | |
483 | } | |
484 | } | |
485 | \f | |
486 | /* External interface to control of standout mode. | |
487 | Call this when about to modify line at position VPOS | |
488 | and not change whether it is highlighted. */ | |
489 | ||
490 | reassert_line_highlight (highlight, vpos) | |
491 | int highlight; | |
492 | int vpos; | |
493 | { | |
1820044b | 494 | if (! FRAME_TERMCAP_P ((updating_frame ? updating_frame : selected_frame))) |
08a24c47 JB |
495 | { |
496 | (*reassert_line_highlight_hook) (highlight, vpos); | |
497 | return; | |
498 | } | |
499 | if (TN_standout_width < 0) | |
500 | /* Handle terminals where standout takes affect at output time */ | |
501 | standout_requested = highlight; | |
502 | else if (chars_wasted[vpos] == 0) | |
503 | /* For terminals with standout markers, write one on this line | |
504 | if there isn't one already. */ | |
505 | write_standout_marker (highlight, vpos); | |
506 | } | |
507 | ||
508 | /* Call this when about to modify line at position VPOS | |
509 | and change whether it is highlighted. */ | |
510 | ||
511 | change_line_highlight (new_highlight, vpos, first_unused_hpos) | |
512 | int new_highlight, vpos, first_unused_hpos; | |
513 | { | |
514 | standout_requested = new_highlight; | |
1820044b | 515 | if (! FRAME_TERMCAP_P (updating_frame)) |
08a24c47 JB |
516 | { |
517 | (*change_line_highlight_hook) (new_highlight, vpos, first_unused_hpos); | |
518 | return; | |
519 | } | |
520 | ||
521 | cursor_to (vpos, 0); | |
522 | ||
523 | if (TN_standout_width < 0) | |
524 | background_highlight (); | |
525 | /* If line starts with a marker, delete the marker */ | |
526 | else if (TS_clr_line && chars_wasted[curY]) | |
527 | { | |
528 | turn_off_insert (); | |
529 | /* On Teleray, make sure to erase the SO marker. */ | |
530 | if (TF_teleray) | |
531 | { | |
ff11dfa1 | 532 | cmgoto (curY - 1, FRAME_WIDTH (selected_frame) - 4); |
08a24c47 JB |
533 | OUTPUT ("\033S"); |
534 | curY++; /* ESC S moves to next line where the TS_standout_mode was */ | |
535 | curX = 0; | |
536 | } | |
537 | else | |
538 | cmgoto (curY, 0); /* reposition to kill standout marker */ | |
539 | } | |
540 | clear_end_of_line_raw (first_unused_hpos); | |
541 | reassert_line_highlight (new_highlight, curY); | |
542 | } | |
543 | \f | |
544 | ||
545 | /* Move to absolute position, specified origin 0 */ | |
546 | ||
547 | cursor_to (row, col) | |
4746118a | 548 | int row, col; |
08a24c47 | 549 | { |
1820044b | 550 | if (! FRAME_TERMCAP_P ((updating_frame |
ff11dfa1 JB |
551 | ? updating_frame |
552 | : selected_frame)) | |
08a24c47 JB |
553 | && cursor_to_hook) |
554 | { | |
555 | (*cursor_to_hook) (row, col); | |
556 | return; | |
557 | } | |
558 | ||
559 | col += chars_wasted[row] & 077; | |
560 | if (curY == row && curX == col) | |
561 | return; | |
562 | if (!TF_standout_motion) | |
563 | background_highlight (); | |
564 | if (!TF_insmode_motion) | |
565 | turn_off_insert (); | |
566 | cmgoto (row, col); | |
567 | } | |
568 | ||
569 | /* Similar but don't take any account of the wasted characters. */ | |
570 | ||
571 | raw_cursor_to (row, col) | |
4746118a | 572 | int row, col; |
08a24c47 | 573 | { |
1820044b | 574 | if (! FRAME_TERMCAP_P ((updating_frame ? updating_frame : selected_frame))) |
08a24c47 JB |
575 | { |
576 | (*raw_cursor_to_hook) (row, col); | |
577 | return; | |
578 | } | |
579 | if (curY == row && curX == col) | |
580 | return; | |
581 | if (!TF_standout_motion) | |
582 | background_highlight (); | |
583 | if (!TF_insmode_motion) | |
584 | turn_off_insert (); | |
585 | cmgoto (row, col); | |
586 | } | |
587 | \f | |
588 | /* Erase operations */ | |
589 | ||
ff11dfa1 | 590 | /* clear from cursor to end of frame */ |
08a24c47 JB |
591 | clear_to_end () |
592 | { | |
593 | register int i; | |
594 | ||
1820044b | 595 | if (clear_to_end_hook && FRAME_TERMCAP_P (updating_frame)) |
08a24c47 JB |
596 | { |
597 | (*clear_to_end_hook) (); | |
598 | return; | |
599 | } | |
600 | if (TS_clr_to_bottom) | |
601 | { | |
602 | background_highlight (); | |
603 | OUTPUT (TS_clr_to_bottom); | |
ff11dfa1 | 604 | bzero (chars_wasted + curY, FRAME_HEIGHT (selected_frame) - curY); |
08a24c47 JB |
605 | } |
606 | else | |
607 | { | |
ff11dfa1 | 608 | for (i = curY; i < FRAME_HEIGHT (selected_frame); i++) |
08a24c47 JB |
609 | { |
610 | cursor_to (i, 0); | |
ff11dfa1 | 611 | clear_end_of_line_raw (FRAME_WIDTH (selected_frame)); |
08a24c47 JB |
612 | } |
613 | } | |
614 | } | |
615 | ||
ff11dfa1 | 616 | /* Clear entire frame */ |
08a24c47 | 617 | |
ff11dfa1 | 618 | clear_frame () |
08a24c47 | 619 | { |
ff11dfa1 | 620 | if (clear_frame_hook |
1820044b | 621 | && ! FRAME_TERMCAP_P ((updating_frame ? updating_frame : selected_frame))) |
08a24c47 | 622 | { |
ff11dfa1 | 623 | (*clear_frame_hook) (); |
08a24c47 JB |
624 | return; |
625 | } | |
ff11dfa1 | 626 | if (TS_clr_frame) |
08a24c47 JB |
627 | { |
628 | background_highlight (); | |
ff11dfa1 JB |
629 | OUTPUT (TS_clr_frame); |
630 | bzero (chars_wasted, FRAME_HEIGHT (selected_frame)); | |
08a24c47 JB |
631 | cmat (0, 0); |
632 | } | |
633 | else | |
634 | { | |
635 | cursor_to (0, 0); | |
636 | clear_to_end (); | |
637 | } | |
638 | } | |
639 | ||
640 | /* Clear to end of line, but do not clear any standout marker. | |
641 | Assumes that the cursor is positioned at a character of real text, | |
642 | which implies it cannot be before a standout marker | |
643 | unless the marker has zero width. | |
644 | ||
645 | Note that the cursor may be moved. */ | |
646 | ||
647 | clear_end_of_line (first_unused_hpos) | |
648 | int first_unused_hpos; | |
649 | { | |
a796ac82 | 650 | static GLYPH buf = SPACEGLYPH; |
1820044b | 651 | if (FRAME_TERMCAP_P (selected_frame) |
08a24c47 | 652 | && TN_standout_width == 0 && curX == 0 && chars_wasted[curY] != 0) |
a796ac82 | 653 | write_glyphs (&buf, 1); |
08a24c47 JB |
654 | clear_end_of_line_raw (first_unused_hpos); |
655 | } | |
656 | ||
657 | /* Clear from cursor to end of line. | |
658 | Assume that the line is already clear starting at column first_unused_hpos. | |
659 | If the cursor is at a standout marker, erase the marker. | |
660 | ||
661 | Note that the cursor may be moved, on terminals lacking a `ce' string. */ | |
662 | ||
663 | clear_end_of_line_raw (first_unused_hpos) | |
664 | int first_unused_hpos; | |
665 | { | |
666 | register int i; | |
667 | ||
668 | if (clear_end_of_line_hook | |
1820044b | 669 | && ! FRAME_TERMCAP_P ((updating_frame |
ff11dfa1 JB |
670 | ? updating_frame |
671 | : selected_frame))) | |
08a24c47 JB |
672 | { |
673 | (*clear_end_of_line_hook) (first_unused_hpos); | |
674 | return; | |
675 | } | |
676 | ||
677 | first_unused_hpos += chars_wasted[curY] & 077; | |
678 | if (curX >= first_unused_hpos) | |
679 | return; | |
680 | /* Notice if we are erasing a magic cookie */ | |
681 | if (curX == 0) | |
682 | chars_wasted[curY] = 0; | |
683 | background_highlight (); | |
684 | if (TS_clr_line) | |
685 | { | |
686 | OUTPUT1 (TS_clr_line); | |
687 | } | |
688 | else | |
689 | { /* have to do it the hard way */ | |
690 | turn_off_insert (); | |
691 | ||
692 | /* Do not write in last row last col with Autowrap on. */ | |
ff11dfa1 JB |
693 | if (AutoWrap && curY == FRAME_HEIGHT (selected_frame) - 1 |
694 | && first_unused_hpos == FRAME_WIDTH (selected_frame)) | |
08a24c47 JB |
695 | first_unused_hpos--; |
696 | ||
697 | for (i = curX; i < first_unused_hpos; i++) | |
698 | { | |
699 | if (termscript) | |
700 | fputc (' ', termscript); | |
701 | putchar (' '); | |
702 | } | |
703 | cmplus (first_unused_hpos - curX); | |
704 | } | |
705 | } | |
706 | \f | |
707 | ||
708 | write_glyphs (string, len) | |
709 | register GLYPH *string; | |
710 | register int len; | |
711 | { | |
712 | register GLYPH g; | |
713 | register int tlen = GLYPH_TABLE_LENGTH; | |
714 | register Lisp_Object *tbase = GLYPH_TABLE_BASE; | |
715 | ||
716 | if (write_glyphs_hook | |
1820044b | 717 | && ! FRAME_TERMCAP_P ((updating_frame ? updating_frame : selected_frame))) |
08a24c47 JB |
718 | { |
719 | (*write_glyphs_hook) (string, len); | |
720 | return; | |
721 | } | |
722 | ||
723 | highlight_if_desired (); | |
724 | turn_off_insert (); | |
725 | ||
726 | /* Don't dare write in last column of bottom line, if AutoWrap, | |
ff11dfa1 | 727 | since that would scroll the whole frame on some terminals. */ |
08a24c47 JB |
728 | |
729 | if (AutoWrap | |
ff11dfa1 | 730 | && curY + 1 == FRAME_HEIGHT (selected_frame) |
08a24c47 | 731 | && (curX + len - (chars_wasted[curY] & 077) |
ff11dfa1 | 732 | == FRAME_WIDTH (selected_frame))) |
08a24c47 JB |
733 | len --; |
734 | ||
735 | cmplus (len); | |
736 | while (--len >= 0) | |
737 | { | |
738 | g = *string++; | |
739 | /* Check quickly for G beyond length of table. | |
740 | That implies it isn't an alias and is simple. */ | |
741 | if (g >= tlen) | |
742 | { | |
743 | simple: | |
744 | putc (g & 0xff, stdout); | |
745 | if (ferror (stdout)) | |
746 | clearerr (stdout); | |
747 | if (termscript) | |
748 | putc (g & 0xff, termscript); | |
749 | } | |
750 | else | |
751 | { | |
752 | /* G has an entry in Vglyph_table, | |
753 | so process any alias and then test for simpleness. */ | |
754 | while (GLYPH_ALIAS_P (tbase, tlen, g)) | |
755 | g = GLYPH_ALIAS (tbase, g); | |
756 | if (GLYPH_SIMPLE_P (tbase, tlen, g)) | |
757 | goto simple; | |
758 | else | |
759 | { | |
760 | /* Here if G (or its definition as an alias) is not simple. */ | |
761 | fwrite (GLYPH_STRING (tbase, g), 1, GLYPH_LENGTH (tbase, g), | |
762 | stdout); | |
763 | if (ferror (stdout)) | |
764 | clearerr (stdout); | |
765 | if (termscript) | |
766 | fwrite (GLYPH_STRING (tbase, g), 1, GLYPH_LENGTH (tbase, g), | |
767 | termscript); | |
768 | } | |
769 | } | |
770 | } | |
771 | } | |
772 | ||
773 | /* If start is zero, insert blanks instead of a string at start */ | |
774 | ||
775 | insert_glyphs (start, len) | |
776 | register GLYPH *start; | |
777 | register int len; | |
778 | { | |
779 | char *buf; | |
780 | register GLYPH g; | |
781 | register int tlen = GLYPH_TABLE_LENGTH; | |
782 | register Lisp_Object *tbase = GLYPH_TABLE_BASE; | |
783 | ||
1820044b | 784 | if (insert_glyphs_hook && ! FRAME_TERMCAP_P (updating_frame)) |
08a24c47 JB |
785 | { |
786 | (*insert_glyphs_hook) (start, len); | |
787 | return; | |
788 | } | |
789 | highlight_if_desired (); | |
790 | ||
791 | if (TS_ins_multi_chars) | |
792 | { | |
793 | buf = tparam (TS_ins_multi_chars, 0, 0, len); | |
794 | OUTPUT1 (buf); | |
9ac0d9e0 | 795 | xfree (buf); |
08a24c47 JB |
796 | if (start) |
797 | write_glyphs (start, len); | |
798 | return; | |
799 | } | |
800 | ||
801 | turn_on_insert (); | |
802 | cmplus (len); | |
803 | while (--len >= 0) | |
804 | { | |
805 | OUTPUT1_IF (TS_ins_char); | |
806 | if (!start) | |
807 | g = SPACEGLYPH; | |
808 | else | |
809 | g = *start++; | |
810 | ||
811 | if (GLYPH_SIMPLE_P (tbase, tlen, g)) | |
812 | { | |
813 | putc (g & 0xff, stdout); | |
814 | if (ferror (stdout)) | |
815 | clearerr (stdout); | |
816 | if (termscript) | |
817 | putc (g & 0xff, termscript); | |
818 | } | |
819 | else | |
820 | { | |
821 | fwrite (GLYPH_STRING (tbase, g), 1, GLYPH_LENGTH (tbase, g), stdout); | |
822 | if (ferror (stdout)) | |
823 | clearerr (stdout); | |
824 | if (termscript) | |
825 | fwrite (GLYPH_STRING (tbase, g), 1, GLYPH_LENGTH (tbase, g), | |
826 | termscript); | |
827 | } | |
828 | ||
829 | OUTPUT1_IF (TS_pad_inserted_char); | |
830 | } | |
831 | } | |
832 | ||
833 | delete_glyphs (n) | |
834 | register int n; | |
835 | { | |
836 | char *buf; | |
837 | register int i; | |
838 | ||
1820044b | 839 | if (delete_glyphs_hook && ! FRAME_TERMCAP_P (updating_frame)) |
08a24c47 JB |
840 | { |
841 | (*delete_glyphs_hook) (n); | |
842 | return; | |
843 | } | |
844 | ||
845 | if (delete_in_insert_mode) | |
846 | { | |
847 | turn_on_insert (); | |
848 | } | |
849 | else | |
850 | { | |
851 | turn_off_insert (); | |
852 | OUTPUT_IF (TS_delete_mode); | |
853 | } | |
854 | ||
855 | if (TS_del_multi_chars) | |
856 | { | |
857 | buf = tparam (TS_del_multi_chars, 0, 0, n); | |
858 | OUTPUT1 (buf); | |
9ac0d9e0 | 859 | xfree (buf); |
08a24c47 JB |
860 | } |
861 | else | |
862 | for (i = 0; i < n; i++) | |
863 | OUTPUT1 (TS_del_char); | |
864 | if (!delete_in_insert_mode) | |
865 | OUTPUT_IF (TS_end_delete_mode); | |
866 | } | |
867 | \f | |
868 | /* Insert N lines at vpos VPOS. If N is negative, delete -N lines. */ | |
869 | ||
870 | ins_del_lines (vpos, n) | |
871 | int vpos, n; | |
872 | { | |
873 | char *multi = n > 0 ? TS_ins_multi_lines : TS_del_multi_lines; | |
874 | char *single = n > 0 ? TS_ins_line : TS_del_line; | |
875 | char *scroll = n > 0 ? TS_rev_scroll : TS_fwd_scroll; | |
876 | ||
877 | register int i = n > 0 ? n : -n; | |
878 | register char *buf; | |
879 | ||
1820044b | 880 | if (ins_del_lines_hook && ! FRAME_TERMCAP_P (updating_frame)) |
08a24c47 JB |
881 | { |
882 | (*ins_del_lines_hook) (vpos, n); | |
883 | return; | |
884 | } | |
885 | ||
886 | /* If the lines below the insertion are being pushed | |
887 | into the end of the window, this is the same as clearing; | |
888 | and we know the lines are already clear, since the matching | |
889 | deletion has already been done. So can ignore this. */ | |
890 | /* If the lines below the deletion are blank lines coming | |
891 | out of the end of the window, don't bother, | |
892 | as there will be a matching inslines later that will flush them. */ | |
893 | if (scroll_region_ok && vpos + i >= specified_window) | |
894 | return; | |
ff11dfa1 | 895 | if (!memory_below_frame && vpos + i >= FRAME_HEIGHT (selected_frame)) |
08a24c47 JB |
896 | return; |
897 | ||
898 | if (multi) | |
899 | { | |
900 | raw_cursor_to (vpos, 0); | |
901 | background_highlight (); | |
902 | buf = tparam (multi, 0, 0, i); | |
903 | OUTPUT (buf); | |
9ac0d9e0 | 904 | xfree (buf); |
08a24c47 JB |
905 | } |
906 | else if (single) | |
907 | { | |
908 | raw_cursor_to (vpos, 0); | |
909 | background_highlight (); | |
910 | while (--i >= 0) | |
911 | OUTPUT (single); | |
912 | if (TF_teleray) | |
913 | curX = 0; | |
914 | } | |
915 | else | |
916 | { | |
917 | set_scroll_region (vpos, specified_window); | |
918 | if (n < 0) | |
919 | raw_cursor_to (specified_window - 1, 0); | |
920 | else | |
921 | raw_cursor_to (vpos, 0); | |
922 | background_highlight (); | |
923 | while (--i >= 0) | |
924 | OUTPUTL (scroll, specified_window - vpos); | |
925 | set_scroll_region (0, specified_window); | |
926 | } | |
927 | ||
928 | if (TN_standout_width >= 0) | |
929 | { | |
930 | register lower_limit | |
931 | = (scroll_region_ok | |
932 | ? specified_window | |
ff11dfa1 | 933 | : FRAME_HEIGHT (selected_frame)); |
08a24c47 JB |
934 | |
935 | if (n < 0) | |
936 | { | |
937 | bcopy (&chars_wasted[vpos - n], &chars_wasted[vpos], | |
938 | lower_limit - vpos + n); | |
939 | bzero (&chars_wasted[lower_limit + n], - n); | |
940 | } | |
941 | else | |
942 | { | |
943 | bcopy (&chars_wasted[vpos], ©buf[vpos], lower_limit - vpos - n); | |
944 | bcopy (©buf[vpos], &chars_wasted[vpos + n], | |
945 | lower_limit - vpos - n); | |
946 | bzero (&chars_wasted[vpos], n); | |
947 | } | |
948 | } | |
ff11dfa1 | 949 | if (!scroll_region_ok && memory_below_frame && n < 0) |
08a24c47 | 950 | { |
ff11dfa1 | 951 | cursor_to (FRAME_HEIGHT (selected_frame) + n, 0); |
08a24c47 JB |
952 | clear_to_end (); |
953 | } | |
954 | } | |
955 | \f | |
956 | /* Compute cost of sending "str", in characters, | |
957 | not counting any line-dependent padding. */ | |
958 | ||
959 | int | |
960 | string_cost (str) | |
961 | char *str; | |
962 | { | |
963 | cost = 0; | |
964 | if (str) | |
965 | tputs (str, 0, evalcost); | |
966 | return cost; | |
967 | } | |
968 | ||
969 | /* Compute cost of sending "str", in characters, | |
970 | counting any line-dependent padding at one line. */ | |
971 | ||
972 | static int | |
973 | string_cost_one_line (str) | |
974 | char *str; | |
975 | { | |
976 | cost = 0; | |
977 | if (str) | |
978 | tputs (str, 1, evalcost); | |
979 | return cost; | |
980 | } | |
981 | ||
982 | /* Compute per line amount of line-dependent padding, | |
983 | in tenths of characters. */ | |
984 | ||
985 | int | |
986 | per_line_cost (str) | |
987 | register char *str; | |
988 | { | |
989 | cost = 0; | |
990 | if (str) | |
991 | tputs (str, 0, evalcost); | |
992 | cost = - cost; | |
993 | if (str) | |
994 | tputs (str, 10, evalcost); | |
995 | return cost; | |
996 | } | |
997 | ||
998 | #ifndef old | |
999 | /* char_ins_del_cost[n] is cost of inserting N characters. | |
1000 | char_ins_del_cost[-n] is cost of deleting N characters. */ | |
1001 | ||
1002 | int *char_ins_del_vector; | |
1003 | ||
ff11dfa1 | 1004 | #define char_ins_del_cost(f) (&char_ins_del_vector[FRAME_WIDTH ((f))]) |
08a24c47 JB |
1005 | #endif |
1006 | ||
1007 | /* ARGSUSED */ | |
1008 | static void | |
ff11dfa1 JB |
1009 | calculate_ins_del_char_costs (frame) |
1010 | FRAME_PTR frame; | |
08a24c47 JB |
1011 | { |
1012 | int ins_startup_cost, del_startup_cost; | |
1013 | int ins_cost_per_char, del_cost_per_char; | |
1014 | register int i; | |
1015 | register int *p; | |
1016 | ||
1017 | if (TS_ins_multi_chars) | |
1018 | { | |
1019 | ins_cost_per_char = 0; | |
1020 | ins_startup_cost = string_cost_one_line (TS_ins_multi_chars); | |
1021 | } | |
1022 | else if (TS_ins_char || TS_pad_inserted_char | |
1023 | || (TS_insert_mode && TS_end_insert_mode)) | |
1024 | { | |
1025 | ins_startup_cost = (30 * (string_cost (TS_insert_mode) | |
1026 | + string_cost (TS_end_insert_mode))) / 100; | |
1027 | ins_cost_per_char = (string_cost_one_line (TS_ins_char) | |
1028 | + string_cost_one_line (TS_pad_inserted_char)); | |
1029 | } | |
1030 | else | |
1031 | { | |
1032 | ins_startup_cost = 9999; | |
1033 | ins_cost_per_char = 0; | |
1034 | } | |
1035 | ||
1036 | if (TS_del_multi_chars) | |
1037 | { | |
1038 | del_cost_per_char = 0; | |
1039 | del_startup_cost = string_cost_one_line (TS_del_multi_chars); | |
1040 | } | |
1041 | else if (TS_del_char) | |
1042 | { | |
1043 | del_startup_cost = (string_cost (TS_delete_mode) | |
1044 | + string_cost (TS_end_delete_mode)); | |
1045 | if (delete_in_insert_mode) | |
1046 | del_startup_cost /= 2; | |
1047 | del_cost_per_char = string_cost_one_line (TS_del_char); | |
1048 | } | |
1049 | else | |
1050 | { | |
1051 | del_startup_cost = 9999; | |
1052 | del_cost_per_char = 0; | |
1053 | } | |
1054 | ||
1055 | /* Delete costs are at negative offsets */ | |
ff11dfa1 JB |
1056 | p = &char_ins_del_cost (frame)[0]; |
1057 | for (i = FRAME_WIDTH (selected_frame); --i >= 0;) | |
08a24c47 JB |
1058 | *--p = (del_startup_cost += del_cost_per_char); |
1059 | ||
1060 | /* Doing nothing is free */ | |
ff11dfa1 | 1061 | p = &char_ins_del_cost (frame)[0]; |
08a24c47 JB |
1062 | *p++ = 0; |
1063 | ||
1064 | /* Insert costs are at positive offsets */ | |
ff11dfa1 | 1065 | for (i = FRAME_WIDTH (frame); --i >= 0;) |
08a24c47 JB |
1066 | *p++ = (ins_startup_cost += ins_cost_per_char); |
1067 | } | |
1068 | ||
1069 | #ifdef HAVE_X_WINDOWS | |
e7308e06 | 1070 | extern int x_screen_planes; |
08a24c47 JB |
1071 | #endif |
1072 | ||
a790fee2 JB |
1073 | extern do_line_insertion_deletion_costs (); |
1074 | ||
ff11dfa1 JB |
1075 | calculate_costs (frame) |
1076 | FRAME_PTR frame; | |
08a24c47 | 1077 | { |
ff11dfa1 | 1078 | register char *f = TS_set_scroll_region ? |
08a24c47 JB |
1079 | TS_set_scroll_region |
1080 | : TS_set_scroll_region_1; | |
1081 | ||
1082 | if (dont_calculate_costs) | |
1083 | return; | |
1084 | ||
1085 | #ifdef HAVE_X_WINDOWS | |
1820044b | 1086 | if (FRAME_X_P (frame)) |
08a24c47 | 1087 | { |
ff11dfa1 | 1088 | do_line_insertion_deletion_costs (frame, 0, ".5*", 0, ".5*", |
e7308e06 | 1089 | 0, 0, x_screen_planes); |
08a24c47 JB |
1090 | return; |
1091 | } | |
1092 | #endif | |
1093 | ||
1094 | /* These variables are only used for terminal stuff. They are allocated | |
ff11dfa1 | 1095 | once for the terminal frame of X-windows emacs, but not used afterwards. |
08a24c47 JB |
1096 | |
1097 | char_ins_del_vector (i.e., char_ins_del_cost) isn't used because | |
1098 | X turns off char_ins_del_ok. | |
1099 | ||
1100 | chars_wasted and copybuf are only used here in term.c in cases where | |
1101 | the term hook isn't called. */ | |
1102 | ||
1103 | if (chars_wasted != 0) | |
ff11dfa1 | 1104 | chars_wasted = (char *) xrealloc (chars_wasted, FRAME_HEIGHT (frame)); |
08a24c47 | 1105 | else |
ff11dfa1 | 1106 | chars_wasted = (char *) xmalloc (FRAME_HEIGHT (frame)); |
08a24c47 JB |
1107 | |
1108 | if (copybuf != 0) | |
ff11dfa1 | 1109 | copybuf = (char *) xrealloc (copybuf, FRAME_HEIGHT (frame)); |
08a24c47 | 1110 | else |
ff11dfa1 | 1111 | copybuf = (char *) xmalloc (FRAME_HEIGHT (frame)); |
08a24c47 JB |
1112 | |
1113 | if (char_ins_del_vector != 0) | |
1114 | char_ins_del_vector | |
1115 | = (int *) xrealloc (char_ins_del_vector, | |
1116 | (sizeof (int) | |
ff11dfa1 | 1117 | + 2 * FRAME_WIDTH (frame) * sizeof (int))); |
08a24c47 JB |
1118 | else |
1119 | char_ins_del_vector | |
1120 | = (int *) xmalloc (sizeof (int) | |
ff11dfa1 | 1121 | + 2 * FRAME_WIDTH (frame) * sizeof (int)); |
08a24c47 | 1122 | |
ff11dfa1 JB |
1123 | bzero (chars_wasted, FRAME_HEIGHT (frame)); |
1124 | bzero (copybuf, FRAME_HEIGHT (frame)); | |
08a24c47 | 1125 | bzero (char_ins_del_vector, (sizeof (int) |
ff11dfa1 | 1126 | + 2 * FRAME_WIDTH (frame) * sizeof (int))); |
08a24c47 | 1127 | |
ff11dfa1 JB |
1128 | if (f && (!TS_ins_line && !TS_del_line)) |
1129 | do_line_insertion_deletion_costs (frame, | |
08a24c47 JB |
1130 | TS_rev_scroll, TS_ins_multi_lines, |
1131 | TS_fwd_scroll, TS_del_multi_lines, | |
ff11dfa1 | 1132 | f, f, 1); |
08a24c47 | 1133 | else |
ff11dfa1 | 1134 | do_line_insertion_deletion_costs (frame, |
08a24c47 JB |
1135 | TS_ins_line, TS_ins_multi_lines, |
1136 | TS_del_line, TS_del_multi_lines, | |
1137 | 0, 0, 1); | |
1138 | ||
ff11dfa1 | 1139 | calculate_ins_del_char_costs (frame); |
08a24c47 JB |
1140 | |
1141 | /* Don't use TS_repeat if its padding is worse than sending the chars */ | |
1142 | if (TS_repeat && per_line_cost (TS_repeat) * baud_rate < 9000) | |
1143 | RPov = string_cost (TS_repeat); | |
1144 | else | |
ff11dfa1 | 1145 | RPov = FRAME_WIDTH (frame) * 2; |
08a24c47 JB |
1146 | |
1147 | cmcostinit (); /* set up cursor motion costs */ | |
1148 | } | |
1149 | \f | |
a796ac82 JB |
1150 | struct fkey_table { |
1151 | char *cap, *name; | |
1152 | }; | |
1153 | ||
01d8deb0 ER |
1154 | /* Termcap capability names that correspond directly to X keysyms. |
1155 | Some of these (marked "terminfo") aren't supplied by old-style | |
1156 | (Berkeley) termcap entries. They're listed in X keysym order; | |
1157 | except we put the keypad keys first, so that if they clash with | |
1158 | other keys (as on the IBM PC keyboard) they get overridden. | |
1159 | */ | |
1160 | ||
a796ac82 | 1161 | static struct fkey_table keys[] = { |
01d8deb0 ER |
1162 | "kh", "home", /* termcap */ |
1163 | "kl", "left", /* termcap */ | |
1164 | "ku", "up", /* termcap */ | |
1165 | "kr", "right", /* termcap */ | |
1166 | "kd", "down", /* termcap */ | |
1167 | "%8", "prior", /* terminfo */ | |
1168 | "%5", "next", /* terminfo */ | |
1169 | "@7", "end", /* terminfo */ | |
1170 | "@1", "begin", /* terminfo */ | |
1171 | "*6", "select", /* terminfo */ | |
1172 | "%9", "print", /* terminfo */ | |
1173 | "@4", "execute", /* terminfo --- actually the `command' key */ | |
1174 | /* | |
1175 | * "insert" --- see below | |
1176 | */ | |
1177 | "&8", "undo", /* terminfo */ | |
1178 | "%0", "redo", /* terminfo */ | |
1179 | "%7", "menu", /* terminfo --- actually the `options' key */ | |
1180 | "@0", "find", /* terminfo */ | |
1181 | "@2", "cancel", /* terminfo */ | |
1182 | "%1", "help", /* terminfo */ | |
1183 | /* | |
1184 | * "break" goes here, but can't be reliably intercepted with termcap | |
1185 | */ | |
1186 | "&4", "reset", /* terminfo --- actually `restart' */ | |
1187 | /* | |
1188 | * "system" and "user" --- no termcaps | |
1189 | */ | |
1190 | "kE", "clearline", /* terminfo */ | |
1191 | "kA", "insertline", /* terminfo */ | |
1192 | "kL", "deleteline", /* terminfo */ | |
1193 | "kI", "insertchar", /* terminfo */ | |
1194 | "kD", "deletechar", /* terminfo */ | |
1195 | "kB", "backtab", /* terminfo */ | |
1196 | /* | |
1197 | * "kp_backtab", "kp-space", "kp-tab" --- no termcaps | |
1198 | */ | |
1199 | "@8", "kp-enter", /* terminfo */ | |
1200 | /* | |
1201 | * "kp-f1", "kp-f2", "kp-f3" "kp-f4", | |
1202 | * "kp-multiply", "kp-add", "kp-separator", | |
1203 | * "kp-subtract", "kp-decimal", "kp-divide", "kp-0"; | |
1204 | * --- no termcaps for any of these. | |
1205 | */ | |
1206 | "K4", "kp-1", /* terminfo */ | |
1207 | /* | |
1208 | * "kp-2" --- no termcap | |
1209 | */ | |
1210 | "K5", "kp-3", /* terminfo */ | |
1211 | /* | |
1212 | * "kp-4" --- no termcap | |
1213 | */ | |
1214 | "K2", "kp-5", /* terminfo */ | |
1215 | /* | |
1216 | * "kp-6" --- no termcap | |
1217 | */ | |
1218 | "K1", "kp-7", /* terminfo */ | |
1219 | /* | |
1220 | * "kp-8" --- no termcap | |
1221 | */ | |
1222 | "K3", "kp-9", /* terminfo */ | |
1223 | /* | |
1224 | * "kp-equal" --- no termcap | |
1225 | */ | |
1226 | "k1", "f1", | |
1227 | "k2", "f2", | |
1228 | "k3", "f3", | |
1229 | "k4", "f4", | |
1230 | "k5", "f5", | |
1231 | "k6", "f6", | |
1232 | "k7", "f7", | |
1233 | "k8", "f8", | |
1234 | "k9", "f9", | |
a796ac82 JB |
1235 | }; |
1236 | ||
f2a00342 RM |
1237 | static char **term_get_fkeys_arg; |
1238 | static Lisp_Object term_get_fkeys_1 (); | |
465db27b | 1239 | |
01d8deb0 ER |
1240 | /* Find the escape codes sent by the function keys for Vfunction_key_map. |
1241 | This function scans the termcap function key sequence entries, and | |
1242 | adds entries to Vfunction_key_map for each function key it finds. */ | |
1243 | ||
5c2c7893 JB |
1244 | void |
1245 | term_get_fkeys (address) | |
1246 | char **address; | |
f2a00342 RM |
1247 | { |
1248 | /* We run the body of the function (term_get_fkeys_1) and ignore all Lisp | |
1249 | errors during the call. The only errors should be from Fdefine_key | |
1250 | when given a key sequence containing an invalid prefix key. If the | |
1251 | termcap defines function keys which use a prefix that is already bound | |
1252 | to a command by the default bindings, we should silently ignore that | |
1253 | function key specification, rather than giving the user an error and | |
1254 | refusing to run at all on such a terminal. */ | |
1255 | ||
1256 | extern Lisp_Object Fidentity (); | |
1257 | static Lisp_Object term_get_fkeys_1 (); | |
1258 | term_get_fkeys_arg = address; | |
1259 | internal_condition_case (term_get_fkeys_1, Qerror, Fidentity); | |
1260 | } | |
1261 | ||
1262 | static Lisp_Object | |
1263 | term_get_fkeys_1 () | |
5c2c7893 JB |
1264 | { |
1265 | extern char *tgetstr (); | |
5c2c7893 JB |
1266 | int i; |
1267 | ||
37085233 | 1268 | char **address = term_get_fkeys_arg; |
f778aff2 | 1269 | |
3e65092f RS |
1270 | /* This can happen if CANNOT_DUMP or with strange options. */ |
1271 | if (!initialized) | |
1272 | Vfunction_key_map = Fmake_sparse_keymap (Qnil); | |
1273 | ||
5c2c7893 JB |
1274 | for (i = 0; i < (sizeof (keys)/sizeof (keys[0])); i++) |
1275 | { | |
1276 | char *sequence = tgetstr (keys[i].cap, address); | |
1277 | if (sequence) | |
f2a00342 RM |
1278 | Fdefine_key (Vfunction_key_map, build_string (sequence), |
1279 | Fmake_vector (make_number (1), | |
1280 | intern (keys[i].name))); | |
5c2c7893 | 1281 | } |
a796ac82 JB |
1282 | |
1283 | /* The uses of the "k0" capability are inconsistent; sometimes it | |
1284 | describes F10, whereas othertimes it describes F0 and "k;" describes F10. | |
eb8c3be9 | 1285 | We will attempt to politely accommodate both systems by testing for |
a796ac82 JB |
1286 | "k;", and if it is present, assuming that "k0" denotes F0, otherwise F10. |
1287 | */ | |
1288 | { | |
1289 | char *k_semi = tgetstr ("k;", address); | |
1290 | char *k0 = tgetstr ("k0", address); | |
1291 | char *k0_name = "f10"; | |
1292 | ||
1293 | if (k_semi) | |
1294 | { | |
f2a00342 RM |
1295 | Fdefine_key (Vfunction_key_map, build_string (k_semi), |
1296 | Fmake_vector (make_number (1), intern ("f10"))); | |
a796ac82 JB |
1297 | k0_name = "f0"; |
1298 | } | |
1299 | ||
1300 | if (k0) | |
f2a00342 RM |
1301 | Fdefine_key (Vfunction_key_map, build_string (k0), |
1302 | Fmake_vector (make_number (1), intern (k0_name))); | |
a796ac82 | 1303 | } |
01d8deb0 ER |
1304 | |
1305 | /* Set up cookies for numbered function keys above f10. */ | |
1306 | { | |
1307 | char fcap[3], fkey[4]; | |
1308 | ||
fc4f24da | 1309 | fcap[0] = 'F'; fcap[2] = '\0'; |
01d8deb0 ER |
1310 | for (i = 11; i < 64; i++) |
1311 | { | |
1312 | if (i <= 19) | |
1313 | fcap[1] = '1' + i - 11; | |
1314 | else if (i <= 45) | |
1315 | fcap[1] = 'A' + i - 11; | |
1316 | else | |
1317 | fcap[1] = 'a' + i - 11; | |
1318 | ||
fc4f24da RS |
1319 | { |
1320 | char *sequence = tgetstr (fcap, address); | |
1321 | if (sequence) | |
1322 | { | |
465db27b | 1323 | sprintf (fkey, "f%d", i); |
f2a00342 RM |
1324 | Fdefine_key (Vfunction_key_map, build_string (sequence), |
1325 | Fmake_vector (make_number (1), | |
1326 | intern (fkey))); | |
fc4f24da RS |
1327 | } |
1328 | } | |
01d8deb0 ER |
1329 | } |
1330 | } | |
1331 | ||
1332 | /* | |
1333 | * Various mappings to try and get a better fit. | |
1334 | */ | |
1335 | { | |
fc4f24da RS |
1336 | #define CONDITIONAL_REASSIGN(cap1, cap2, sym) \ |
1337 | if (!tgetstr (cap1, address)) \ | |
1338 | { \ | |
1339 | char *sequence = tgetstr (cap2, address); \ | |
1340 | if (sequence) \ | |
f2a00342 RM |
1341 | Fdefine_key (Vfunction_key_map, build_string (sequence), \ |
1342 | Fmake_vector (make_number (1), \ | |
1343 | intern (sym))); \ | |
fc4f24da | 1344 | } |
01d8deb0 ER |
1345 | |
1346 | /* if there's no key_next keycap, map key_npage to `next' keysym */ | |
27b61785 | 1347 | CONDITIONAL_REASSIGN ("%5", "kN", "next"); |
01d8deb0 | 1348 | /* if there's no key_prev keycap, map key_ppage to `previous' keysym */ |
381d11a1 | 1349 | CONDITIONAL_REASSIGN ("%8", "kP", "prior"); |
01d8deb0 | 1350 | /* if there's no key_dc keycap, map key_ic to `insert' keysym */ |
27b61785 | 1351 | CONDITIONAL_REASSIGN ("kD", "kI", "insert"); |
1dd40212 | 1352 | #undef CONDITIONAL_REASSIGN |
01d8deb0 | 1353 | } |
5c2c7893 JB |
1354 | } |
1355 | ||
1356 | \f | |
08a24c47 JB |
1357 | term_init (terminal_type) |
1358 | char *terminal_type; | |
1359 | { | |
1360 | char *area; | |
1361 | char **address = &area; | |
1362 | char buffer[2044]; | |
1363 | register char *p; | |
1364 | int status; | |
1365 | ||
1366 | extern char *tgetstr (); | |
1367 | ||
1368 | Wcm_clear (); | |
1369 | dont_calculate_costs = 0; | |
1370 | ||
1371 | status = tgetent (buffer, terminal_type); | |
1372 | if (status < 0) | |
1373 | fatal ("Cannot open termcap database file.\n"); | |
1374 | if (status == 0) | |
c5a9c3e6 RS |
1375 | fatal ("Terminal type %s is not defined.\n\ |
1376 | If that is not the actual type of terminal you have,\n\ | |
1377 | use the Bourne shell command `TERM=... export TERM' (C-shell:\n\ | |
1378 | `setenv TERM ...') to specify the correct type. It may be necessary\n\ | |
1379 | to do `unset TERMCAP' (C-shell: `unsetenv TERMCAP') as well.\n", | |
1380 | terminal_type); | |
08a24c47 JB |
1381 | |
1382 | #ifdef TERMINFO | |
1383 | area = (char *) malloc (2044); | |
1384 | #else | |
1385 | area = (char *) malloc (strlen (buffer)); | |
1386 | #endif /* not TERMINFO */ | |
1387 | if (area == 0) | |
1388 | abort (); | |
1389 | ||
1390 | TS_ins_line = tgetstr ("al", address); | |
1391 | TS_ins_multi_lines = tgetstr ("AL", address); | |
1392 | TS_bell = tgetstr ("bl", address); | |
1393 | BackTab = tgetstr ("bt", address); | |
1394 | TS_clr_to_bottom = tgetstr ("cd", address); | |
1395 | TS_clr_line = tgetstr ("ce", address); | |
ff11dfa1 | 1396 | TS_clr_frame = tgetstr ("cl", address); |
08a24c47 JB |
1397 | ColPosition = tgetstr ("ch", address); |
1398 | AbsPosition = tgetstr ("cm", address); | |
1399 | CR = tgetstr ("cr", address); | |
1400 | TS_set_scroll_region = tgetstr ("cs", address); | |
1401 | TS_set_scroll_region_1 = tgetstr ("cS", address); | |
1402 | RowPosition = tgetstr ("cv", address); | |
1403 | TS_del_char = tgetstr ("dc", address); | |
1404 | TS_del_multi_chars = tgetstr ("DC", address); | |
1405 | TS_del_line = tgetstr ("dl", address); | |
1406 | TS_del_multi_lines = tgetstr ("DL", address); | |
1407 | TS_delete_mode = tgetstr ("dm", address); | |
1408 | TS_end_delete_mode = tgetstr ("ed", address); | |
1409 | TS_end_insert_mode = tgetstr ("ei", address); | |
1410 | Home = tgetstr ("ho", address); | |
1411 | TS_ins_char = tgetstr ("ic", address); | |
1412 | TS_ins_multi_chars = tgetstr ("IC", address); | |
1413 | TS_insert_mode = tgetstr ("im", address); | |
1414 | TS_pad_inserted_char = tgetstr ("ip", address); | |
1415 | TS_end_keypad_mode = tgetstr ("ke", address); | |
1416 | TS_keypad_mode = tgetstr ("ks", address); | |
1417 | LastLine = tgetstr ("ll", address); | |
1418 | Right = tgetstr ("nd", address); | |
1419 | Down = tgetstr ("do", address); | |
1420 | if (!Down) | |
1421 | Down = tgetstr ("nl", address); /* Obsolete name for "do" */ | |
1422 | #ifdef VMS | |
1423 | /* VMS puts a carriage return before each linefeed, | |
1424 | so it is not safe to use linefeeds. */ | |
1425 | if (Down && Down[0] == '\n' && Down[1] == '\0') | |
1426 | Down = 0; | |
1427 | #endif /* VMS */ | |
1428 | if (tgetflag ("bs")) | |
1429 | Left = "\b"; /* can't possibly be longer! */ | |
1430 | else /* (Actually, "bs" is obsolete...) */ | |
1431 | Left = tgetstr ("le", address); | |
1432 | if (!Left) | |
1433 | Left = tgetstr ("bc", address); /* Obsolete name for "le" */ | |
1434 | TS_pad_char = tgetstr ("pc", address); | |
1435 | TS_repeat = tgetstr ("rp", address); | |
1436 | TS_end_standout_mode = tgetstr ("se", address); | |
1437 | TS_fwd_scroll = tgetstr ("sf", address); | |
1438 | TS_standout_mode = tgetstr ("so", address); | |
1439 | TS_rev_scroll = tgetstr ("sr", address); | |
1440 | Wcm.cm_tab = tgetstr ("ta", address); | |
1441 | TS_end_termcap_modes = tgetstr ("te", address); | |
1442 | TS_termcap_modes = tgetstr ("ti", address); | |
1443 | Up = tgetstr ("up", address); | |
1444 | TS_visible_bell = tgetstr ("vb", address); | |
1445 | TS_end_visual_mode = tgetstr ("ve", address); | |
1446 | TS_visual_mode = tgetstr ("vs", address); | |
1447 | TS_set_window = tgetstr ("wi", address); | |
1448 | MultiUp = tgetstr ("UP", address); | |
1449 | MultiDown = tgetstr ("DO", address); | |
1450 | MultiLeft = tgetstr ("LE", address); | |
1451 | MultiRight = tgetstr ("RI", address); | |
1452 | ||
1453 | AutoWrap = tgetflag ("am"); | |
ff11dfa1 | 1454 | memory_below_frame = tgetflag ("db"); |
08a24c47 JB |
1455 | TF_hazeltine = tgetflag ("hz"); |
1456 | must_write_spaces = tgetflag ("in"); | |
1457 | meta_key = tgetflag ("km") || tgetflag ("MT"); | |
1458 | TF_insmode_motion = tgetflag ("mi"); | |
1459 | TF_standout_motion = tgetflag ("ms"); | |
1460 | TF_underscore = tgetflag ("ul"); | |
1461 | MagicWrap = tgetflag ("xn"); | |
1462 | TF_xs = tgetflag ("xs"); | |
1463 | TF_teleray = tgetflag ("xt"); | |
1464 | ||
5c2c7893 JB |
1465 | term_get_fkeys (address); |
1466 | ||
ff11dfa1 JB |
1467 | /* Get frame size from system, or else from termcap. */ |
1468 | get_frame_size (&FRAME_WIDTH (selected_frame), | |
1469 | &FRAME_HEIGHT (selected_frame)); | |
1470 | if (FRAME_WIDTH (selected_frame) <= 0) | |
1471 | FRAME_WIDTH (selected_frame) = tgetnum ("co"); | |
1472 | if (FRAME_HEIGHT (selected_frame) <= 0) | |
1473 | FRAME_HEIGHT (selected_frame) = tgetnum ("li"); | |
08a24c47 JB |
1474 | |
1475 | min_padding_speed = tgetnum ("pb"); | |
1476 | TN_standout_width = tgetnum ("sg"); | |
1477 | TabWidth = tgetnum ("tw"); | |
1478 | ||
1479 | #ifdef VMS | |
1480 | /* These capabilities commonly use ^J. | |
1481 | I don't know why, but sending them on VMS does not work; | |
1482 | it causes following spaces to be lost, sometimes. | |
1483 | For now, the simplest fix is to avoid using these capabilities ever. */ | |
1484 | if (Down && Down[0] == '\n') | |
1485 | Down = 0; | |
1486 | #endif /* VMS */ | |
1487 | ||
1488 | if (!TS_bell) | |
1489 | TS_bell = "\07"; | |
1490 | ||
1491 | if (!TS_fwd_scroll) | |
1492 | TS_fwd_scroll = Down; | |
1493 | ||
1494 | PC = TS_pad_char ? *TS_pad_char : 0; | |
1495 | ||
1496 | if (TabWidth < 0) | |
1497 | TabWidth = 8; | |
1498 | ||
1499 | /* Turned off since /etc/termcap seems to have :ta= for most terminals | |
1500 | and newer termcap doc does not seem to say there is a default. | |
1501 | if (!Wcm.cm_tab) | |
1502 | Wcm.cm_tab = "\t"; | |
1503 | */ | |
1504 | ||
1505 | if (TS_standout_mode == 0) | |
1506 | { | |
1507 | TN_standout_width = tgetnum ("ug"); | |
1508 | TS_end_standout_mode = tgetstr ("ue", address); | |
1509 | TS_standout_mode = tgetstr ("us", address); | |
1510 | } | |
1511 | ||
afd359c4 RS |
1512 | /* If no `se' string, try using a `me' string instead. |
1513 | If that fails, we can't use standout mode at all. */ | |
1514 | if (TS_end_standout_mode == 0) | |
1515 | { | |
1516 | char *s = tgetstr ("me"); | |
1517 | if (s != 0) | |
1518 | TS_end_standout_mode = s; | |
1519 | else | |
1520 | TS_standout_mode = 0; | |
1521 | } | |
1522 | ||
08a24c47 JB |
1523 | if (TF_teleray) |
1524 | { | |
1525 | Wcm.cm_tab = 0; | |
1526 | /* Teleray: most programs want a space in front of TS_standout_mode, | |
1527 | but Emacs can do without it (and give one extra column). */ | |
1528 | TS_standout_mode = "\033RD"; | |
1529 | TN_standout_width = 1; | |
1530 | /* But that means we cannot rely on ^M to go to column zero! */ | |
1531 | CR = 0; | |
1532 | /* LF can't be trusted either -- can alter hpos */ | |
1533 | /* if move at column 0 thru a line with TS_standout_mode */ | |
1534 | Down = 0; | |
1535 | } | |
1536 | ||
1537 | /* Special handling for certain terminal types known to need it */ | |
1538 | ||
1539 | if (!strcmp (terminal_type, "supdup")) | |
1540 | { | |
ff11dfa1 | 1541 | memory_below_frame = 1; |
08a24c47 JB |
1542 | Wcm.cm_losewrap = 1; |
1543 | } | |
1544 | if (!strncmp (terminal_type, "c10", 3) | |
1545 | || !strcmp (terminal_type, "perq")) | |
1546 | { | |
1547 | /* Supply a makeshift :wi string. | |
1548 | This string is not valid in general since it works only | |
1549 | for windows starting at the upper left corner; | |
1550 | but that is all Emacs uses. | |
1551 | ||
ff11dfa1 | 1552 | This string works only if the frame is using |
08a24c47 JB |
1553 | the top of the video memory, because addressing is memory-relative. |
1554 | So first check the :ti string to see if that is true. | |
1555 | ||
1556 | It would be simpler if the :wi string could go in the termcap | |
1557 | entry, but it can't because it is not fully valid. | |
1558 | If it were in the termcap entry, it would confuse other programs. */ | |
1559 | if (!TS_set_window) | |
1560 | { | |
1561 | p = TS_termcap_modes; | |
1562 | while (*p && strcmp (p, "\033v ")) | |
1563 | p++; | |
1564 | if (*p) | |
1565 | TS_set_window = "\033v%C %C %C %C "; | |
1566 | } | |
1567 | /* Termcap entry often fails to have :in: flag */ | |
1568 | must_write_spaces = 1; | |
1569 | /* :ti string typically fails to have \E^G! in it */ | |
1570 | /* This limits scope of insert-char to one line. */ | |
1571 | strcpy (area, TS_termcap_modes); | |
1572 | strcat (area, "\033\007!"); | |
1573 | TS_termcap_modes = area; | |
1574 | area += strlen (area) + 1; | |
1575 | p = AbsPosition; | |
1576 | /* Change all %+ parameters to %C, to handle | |
1577 | values above 96 correctly for the C100. */ | |
1578 | while (*p) | |
1579 | { | |
1580 | if (p[0] == '%' && p[1] == '+') | |
1581 | p[1] = 'C'; | |
1582 | p++; | |
1583 | } | |
1584 | } | |
1585 | ||
ff11dfa1 JB |
1586 | FrameRows = FRAME_HEIGHT (selected_frame); |
1587 | FrameCols = FRAME_WIDTH (selected_frame); | |
1588 | specified_window = FRAME_HEIGHT (selected_frame); | |
08a24c47 JB |
1589 | |
1590 | if (Wcm_init () == -1) /* can't do cursor motion */ | |
1591 | #ifdef VMS | |
1592 | fatal ("Terminal type \"%s\" is not powerful enough to run Emacs.\n\ | |
1593 | It lacks the ability to position the cursor.\n\ | |
1594 | If that is not the actual type of terminal you have, use either the\n\ | |
1595 | DCL command `SET TERMINAL/DEVICE= ...' for DEC-compatible terminals,\n\ | |
1596 | or `define EMACS_TERM \"terminal type\"' for non-DEC terminals.\n", | |
1597 | terminal_type); | |
1598 | #else | |
1599 | fatal ("Terminal type \"%s\" is not powerful enough to run Emacs.\n\ | |
1600 | It lacks the ability to position the cursor.\n\ | |
1601 | If that is not the actual type of terminal you have,\n\ | |
c5a9c3e6 RS |
1602 | use the Bourne shell command `TERM=... export TERM' (C-shell:\n\ |
1603 | `setenv TERM ...') to specify the correct type. It may be necessary\n\ | |
1604 | to do `unset TERMCAP' (C-shell: `unsetenv TERMCAP') as well.\n", | |
08a24c47 JB |
1605 | terminal_type); |
1606 | #endif | |
ff11dfa1 JB |
1607 | if (FRAME_HEIGHT (selected_frame) <= 0 |
1608 | || FRAME_WIDTH (selected_frame) <= 0) | |
1609 | fatal ("The frame size has not been specified."); | |
08a24c47 JB |
1610 | |
1611 | delete_in_insert_mode | |
1612 | = TS_delete_mode && TS_insert_mode | |
1613 | && !strcmp (TS_delete_mode, TS_insert_mode); | |
1614 | ||
1615 | se_is_so = (TS_standout_mode | |
1616 | && TS_end_standout_mode | |
1617 | && !strcmp (TS_standout_mode, TS_end_standout_mode)); | |
1618 | ||
1619 | /* Remove width of standout marker from usable width of line */ | |
1620 | if (TN_standout_width > 0) | |
ff11dfa1 | 1621 | FRAME_WIDTH (selected_frame) -= TN_standout_width; |
08a24c47 JB |
1622 | |
1623 | UseTabs = tabs_safe_p () && TabWidth == 8; | |
1624 | ||
1625 | scroll_region_ok | |
1626 | = (Wcm.cm_abs | |
1627 | && (TS_set_window || TS_set_scroll_region || TS_set_scroll_region_1)); | |
1628 | ||
1629 | line_ins_del_ok = (((TS_ins_line || TS_ins_multi_lines) | |
1630 | && (TS_del_line || TS_del_multi_lines)) | |
1631 | || (scroll_region_ok && TS_fwd_scroll && TS_rev_scroll)); | |
1632 | ||
1633 | char_ins_del_ok = ((TS_ins_char || TS_insert_mode | |
1634 | || TS_pad_inserted_char || TS_ins_multi_chars) | |
1635 | && (TS_del_char || TS_del_multi_chars)); | |
1636 | ||
1637 | fast_clear_end_of_line = TS_clr_line != 0; | |
1638 | ||
1639 | init_baud_rate (); | |
1640 | if (read_socket_hook) /* Baudrate is somewhat */ | |
1641 | /* meaningless in this case */ | |
1642 | baud_rate = 9600; | |
20a558dc | 1643 | |
a3c87d4e JB |
1644 | FRAME_CAN_HAVE_SCROLL_BARS (selected_frame) = 0; |
1645 | FRAME_HAS_VERTICAL_SCROLL_BARS (selected_frame) = 0; | |
08a24c47 JB |
1646 | } |
1647 | ||
1648 | /* VARARGS 1 */ | |
1649 | fatal (str, arg1, arg2) | |
4746118a | 1650 | char *str, *arg1, *arg2; |
08a24c47 JB |
1651 | { |
1652 | fprintf (stderr, "emacs: "); | |
1653 | fprintf (stderr, str, arg1, arg2); | |
1654 | fflush (stderr); | |
1655 | exit (1); | |
1656 | } | |
07c57952 KH |
1657 | |
1658 | syms_of_term () | |
1659 | { | |
1660 | DEFVAR_BOOL ("system-uses-terminfo", &system_uses_terminfo, | |
1661 | "Non-nil means the system uses terminfo rather than termcap.\n\ | |
1662 | This variable can be used by terminal emulator packages."); | |
1663 | #ifdef TERMINFO | |
1664 | system_uses_terminfo = 1; | |
1665 | #else | |
1666 | system_uses_terminfo = 0; | |
1667 | #endif | |
1668 | } |