Commit | Line | Data |
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08a24c47 | 1 | /* terminal control module for terminals described by TERMCAP |
371fbaeb | 2 | Copyright (C) 1985, 1986, 1987, 1992, 1993 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> | |
23 | #include "config.h" | |
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 | ||
43 | /* Terminal charateristics that higher levels want to look at. | |
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 | ||
20a558dc | 96 | /* Return the current position of the mouse. |
371fbaeb JB |
97 | |
98 | Set *f to the frame the mouse is in, or zero if the mouse is in no | |
99 | Emacs frame. If it is set to zero, all the other arguments are | |
100 | garbage. | |
101 | ||
102 | If the motion started in a scrollbar, set *bar_window to the | |
103 | scrollbar's window, *part to the part the mouse is currently over, | |
104 | *x to the position of the mouse along the scrollbar, and *y to the | |
105 | overall length of the scrollbar. | |
106 | ||
107 | Otherwise, set *bar_window to Qnil, and *x and *y to the column and | |
108 | row of the character cell the mouse is over. | |
109 | ||
110 | Set *time to the time the mouse was at the returned position. | |
111 | ||
112 | This should clear mouse_moved until the next motion | |
113 | event arrives. */ | |
ff11dfa1 | 114 | void (*mouse_position_hook) ( /* FRAME_PTR *f, |
371fbaeb | 115 | Lisp_Object *bar_window, |
20a558dc JB |
116 | enum scrollbar_part *part, |
117 | Lisp_Object *x, | |
118 | Lisp_Object *y, | |
119 | unsigned long *time */ ); | |
08a24c47 | 120 | |
ff11dfa1 JB |
121 | /* When reading from a minibuffer in a different frame, Emacs wants |
122 | to shift the highlight from the selected frame to the minibuffer's | |
123 | frame; under X, this means it lies about where the focus is. | |
2e146aa4 JB |
124 | This hook tells the window system code to re-decide where to put |
125 | the highlight. */ | |
ff11dfa1 | 126 | void (*frame_rehighlight_hook) ( /* FRAME_PTR f */ ); |
2e146aa4 | 127 | |
371fbaeb JB |
128 | /* Set the vertical scrollbar for WINDOW to have its upper left corner |
129 | at (TOP, LEFT), and be LENGTH rows high. Set its handle to | |
130 | indicate that we are displaying PORTION characters out of a total | |
131 | of WHOLE characters, starting at POSITION. If WINDOW doesn't yet | |
132 | have a scrollbar, create one for it. */ | |
133 | void (*set_vertical_scrollbar_hook) | |
134 | ( /* struct window *window, | |
20a558dc JB |
135 | int portion, int whole, int position */ ); |
136 | ||
371fbaeb | 137 | |
20a558dc JB |
138 | /* The following three hooks are used when we're doing a thorough |
139 | redisplay of the frame. We don't explicitly know which scrollbars | |
140 | are going to be deleted, because keeping track of when windows go | |
141 | away is a real pain - can you say set-window-configuration? | |
142 | Instead, we just assert at the beginning of redisplay that *all* | |
143 | scrollbars are to be removed, and then save scrollbars from the | |
144 | firey pit when we actually redisplay their window. */ | |
145 | ||
146 | /* Arrange for all scrollbars on FRAME to be removed at the next call | |
147 | to `*judge_scrollbars_hook'. A scrollbar may be spared if | |
371fbaeb | 148 | `*redeem_scrollbar_hook' is applied to its window before the judgement. |
20a558dc | 149 | |
371fbaeb JB |
150 | This should be applied to each frame each time its window tree is |
151 | redisplayed, even if it is not displaying scrollbars at the moment; | |
152 | if the HAS_SCROLLBARS flag has just been turned off, only calling | |
153 | this and the judge_scrollbars_hook will get rid of them. | |
154 | ||
155 | If non-zero, this hook should be safe to apply to any frame, | |
156 | whether or not it can support scrollbars, and whether or not it is | |
157 | currently displaying them. */ | |
158 | void (*condemn_scrollbars_hook)( /* FRAME_PTR *frame */ ); | |
159 | ||
160 | /* Unmark WINDOW's scrollbar for deletion in this judgement cycle. | |
161 | Note that it's okay to redeem a scrollbar that is not condemned. */ | |
162 | void (*redeem_scrollbar_hook)( /* struct window *window */ ); | |
20a558dc JB |
163 | |
164 | /* Remove all scrollbars on FRAME that haven't been saved since the | |
371fbaeb | 165 | last call to `*condemn_scrollbars_hook'. |
20a558dc | 166 | |
371fbaeb JB |
167 | This should be applied to each frame after each time its window |
168 | tree is redisplayed, even if it is not displaying scrollbars at the | |
169 | moment; if the HAS_SCROLLBARS flag has just been turned off, only | |
170 | calling this and condemn_scrollbars_hook will get rid of them. | |
171 | ||
172 | If non-zero, this hook should be safe to apply to any frame, | |
173 | whether or not it can support scrollbars, and whether or not it is | |
174 | currently displaying them. */ | |
175 | void (*judge_scrollbars_hook)( /* FRAME_PTR *FRAME */ ); | |
20a558dc JB |
176 | |
177 | ||
08a24c47 JB |
178 | /* Strings, numbers and flags taken from the termcap entry. */ |
179 | ||
180 | char *TS_ins_line; /* termcap "al" */ | |
181 | char *TS_ins_multi_lines; /* "AL" (one parameter, # lines to insert) */ | |
182 | char *TS_bell; /* "bl" */ | |
183 | char *TS_clr_to_bottom; /* "cd" */ | |
184 | char *TS_clr_line; /* "ce", clear to end of line */ | |
ff11dfa1 | 185 | char *TS_clr_frame; /* "cl" */ |
08a24c47 JB |
186 | char *TS_set_scroll_region; /* "cs" (2 params, first line and last line) */ |
187 | char *TS_set_scroll_region_1; /* "cS" (4 params: total lines, | |
188 | lines above scroll region, lines below it, | |
189 | total lines again) */ | |
190 | char *TS_del_char; /* "dc" */ | |
191 | char *TS_del_multi_chars; /* "DC" (one parameter, # chars to delete) */ | |
192 | char *TS_del_line; /* "dl" */ | |
193 | char *TS_del_multi_lines; /* "DL" (one parameter, # lines to delete) */ | |
194 | char *TS_delete_mode; /* "dm", enter character-delete mode */ | |
195 | char *TS_end_delete_mode; /* "ed", leave character-delete mode */ | |
196 | char *TS_end_insert_mode; /* "ei", leave character-insert mode */ | |
197 | char *TS_ins_char; /* "ic" */ | |
198 | char *TS_ins_multi_chars; /* "IC" (one parameter, # chars to insert) */ | |
199 | char *TS_insert_mode; /* "im", enter character-insert mode */ | |
200 | char *TS_pad_inserted_char; /* "ip". Just padding, no commands. */ | |
201 | char *TS_end_keypad_mode; /* "ke" */ | |
202 | char *TS_keypad_mode; /* "ks" */ | |
203 | char *TS_pad_char; /* "pc", char to use as padding */ | |
204 | char *TS_repeat; /* "rp" (2 params, # times to repeat | |
205 | and character to be repeated) */ | |
206 | char *TS_end_standout_mode; /* "se" */ | |
207 | char *TS_fwd_scroll; /* "sf" */ | |
208 | char *TS_standout_mode; /* "so" */ | |
209 | char *TS_rev_scroll; /* "sr" */ | |
210 | char *TS_end_termcap_modes; /* "te" */ | |
211 | char *TS_termcap_modes; /* "ti" */ | |
212 | char *TS_visible_bell; /* "vb" */ | |
213 | char *TS_end_visual_mode; /* "ve" */ | |
214 | char *TS_visual_mode; /* "vi" */ | |
215 | char *TS_set_window; /* "wi" (4 params, start and end of window, | |
216 | each as vpos and hpos) */ | |
217 | ||
218 | int TF_hazeltine; /* termcap hz flag. */ | |
219 | int TF_insmode_motion; /* termcap mi flag: can move while in insert mode. */ | |
220 | int TF_standout_motion; /* termcap mi flag: can move while in standout mode. */ | |
221 | int TF_underscore; /* termcap ul flag: _ underlines if overstruck on | |
222 | nonblank position. Must clear before writing _. */ | |
223 | int TF_teleray; /* termcap xt flag: many weird consequences. | |
224 | For t1061. */ | |
225 | ||
226 | int TF_xs; /* Nonzero for "xs". If set together with | |
227 | TN_standout_width == 0, it means don't bother | |
228 | to write any end-standout cookies. */ | |
229 | ||
230 | int TN_standout_width; /* termcap sg number: width occupied by standout | |
231 | markers */ | |
232 | ||
233 | static int RPov; /* # chars to start a TS_repeat */ | |
234 | ||
235 | static int delete_in_insert_mode; /* delete mode == insert mode */ | |
236 | ||
237 | static int se_is_so; /* 1 if same string both enters and leaves | |
238 | standout mode */ | |
239 | ||
240 | /* internal state */ | |
241 | ||
242 | /* Number of chars of space used for standout marker at beginning of line, | |
243 | or'd with 0100. Zero if no standout marker at all. | |
244 | ||
245 | Used IFF TN_standout_width >= 0. */ | |
246 | ||
247 | static char *chars_wasted; | |
248 | static char *copybuf; | |
249 | ||
250 | /* nonzero means supposed to write text in standout mode. */ | |
251 | int standout_requested; | |
252 | ||
253 | int insert_mode; /* Nonzero when in insert mode. */ | |
254 | int standout_mode; /* Nonzero when in standout mode. */ | |
255 | ||
256 | /* Size of window specified by higher levels. | |
ff11dfa1 | 257 | This is the number of lines, from the top of frame downwards, |
08a24c47 JB |
258 | which can participate in insert-line/delete-line operations. |
259 | ||
ff11dfa1 | 260 | Effectively it excludes the bottom frame_height - specified_window_size |
08a24c47 JB |
261 | lines from those operations. */ |
262 | ||
263 | int specified_window; | |
264 | ||
ff11dfa1 | 265 | /* Frame currently being redisplayed; 0 if not currently redisplaying. |
08a24c47 JB |
266 | (Direct output does not count). */ |
267 | ||
ff11dfa1 | 268 | FRAME_PTR updating_frame; |
08a24c47 JB |
269 | |
270 | char *tparam (); | |
271 | \f | |
272 | ring_bell () | |
273 | { | |
1820044b | 274 | if (! FRAME_TERMCAP_P (selected_frame)) |
08a24c47 JB |
275 | { |
276 | (*ring_bell_hook) (); | |
277 | return; | |
278 | } | |
279 | OUTPUT (TS_visible_bell && visible_bell ? TS_visible_bell : TS_bell); | |
280 | } | |
281 | ||
282 | set_terminal_modes () | |
283 | { | |
1820044b | 284 | if (! FRAME_TERMCAP_P (selected_frame)) |
08a24c47 JB |
285 | { |
286 | (*set_terminal_modes_hook) (); | |
287 | return; | |
288 | } | |
289 | OUTPUT_IF (TS_termcap_modes); | |
290 | OUTPUT_IF (TS_visual_mode); | |
291 | OUTPUT_IF (TS_keypad_mode); | |
292 | losecursor (); | |
293 | } | |
294 | ||
295 | reset_terminal_modes () | |
296 | { | |
1820044b | 297 | if (! FRAME_TERMCAP_P (selected_frame)) |
08a24c47 JB |
298 | { |
299 | (*reset_terminal_modes_hook) (); | |
300 | return; | |
301 | } | |
302 | if (TN_standout_width < 0) | |
303 | turn_off_highlight (); | |
304 | turn_off_insert (); | |
305 | OUTPUT_IF (TS_end_keypad_mode); | |
306 | OUTPUT_IF (TS_end_visual_mode); | |
307 | OUTPUT_IF (TS_end_termcap_modes); | |
308 | /* Output raw CR so kernel can track the cursor hpos. */ | |
309 | /* But on magic-cookie terminals this can erase an end-standout marker and | |
ff11dfa1 | 310 | cause the rest of the frame to be in standout, so move down first. */ |
08a24c47 JB |
311 | if (TN_standout_width >= 0) |
312 | cmputc ('\n'); | |
313 | cmputc ('\r'); | |
314 | } | |
315 | ||
ff11dfa1 JB |
316 | update_begin (f) |
317 | FRAME_PTR f; | |
08a24c47 | 318 | { |
ff11dfa1 | 319 | updating_frame = f; |
1820044b | 320 | if (! FRAME_TERMCAP_P (updating_frame)) |
ff11dfa1 | 321 | (*update_begin_hook) (f); |
08a24c47 JB |
322 | } |
323 | ||
ff11dfa1 JB |
324 | update_end (f) |
325 | FRAME_PTR f; | |
08a24c47 | 326 | { |
1820044b | 327 | if (! FRAME_TERMCAP_P (updating_frame)) |
08a24c47 | 328 | { |
ff11dfa1 JB |
329 | (*update_end_hook) (f); |
330 | updating_frame = 0; | |
08a24c47 JB |
331 | return; |
332 | } | |
333 | turn_off_insert (); | |
334 | background_highlight (); | |
335 | standout_requested = 0; | |
ff11dfa1 | 336 | updating_frame = 0; |
08a24c47 JB |
337 | } |
338 | ||
339 | set_terminal_window (size) | |
340 | int size; | |
341 | { | |
1820044b | 342 | if (! FRAME_TERMCAP_P (updating_frame)) |
08a24c47 JB |
343 | { |
344 | (*set_terminal_window_hook) (size); | |
345 | return; | |
346 | } | |
ff11dfa1 | 347 | specified_window = size ? size : FRAME_HEIGHT (selected_frame); |
08a24c47 JB |
348 | if (!scroll_region_ok) |
349 | return; | |
350 | set_scroll_region (0, specified_window); | |
351 | } | |
352 | ||
353 | set_scroll_region (start, stop) | |
354 | int start, stop; | |
355 | { | |
356 | char *buf; | |
357 | if (TS_set_scroll_region) | |
358 | { | |
359 | buf = tparam (TS_set_scroll_region, 0, 0, start, stop - 1); | |
360 | } | |
361 | else if (TS_set_scroll_region_1) | |
362 | { | |
363 | buf = tparam (TS_set_scroll_region_1, 0, 0, | |
ff11dfa1 JB |
364 | FRAME_HEIGHT (selected_frame), start, |
365 | FRAME_HEIGHT (selected_frame) - stop, | |
366 | FRAME_HEIGHT (selected_frame)); | |
08a24c47 JB |
367 | } |
368 | else | |
369 | { | |
ff11dfa1 | 370 | buf = tparam (TS_set_window, 0, 0, start, 0, stop, FRAME_WIDTH (selected_frame)); |
08a24c47 JB |
371 | } |
372 | OUTPUT (buf); | |
373 | free (buf); | |
374 | losecursor (); | |
375 | } | |
376 | \f | |
377 | turn_on_insert () | |
378 | { | |
379 | if (!insert_mode) | |
380 | OUTPUT (TS_insert_mode); | |
381 | insert_mode = 1; | |
382 | } | |
383 | ||
384 | turn_off_insert () | |
385 | { | |
386 | if (insert_mode) | |
387 | OUTPUT (TS_end_insert_mode); | |
388 | insert_mode = 0; | |
389 | } | |
390 | \f | |
391 | /* Handle highlighting when TN_standout_width (termcap sg) is not specified. | |
392 | In these terminals, output is affected by the value of standout | |
393 | mode when the output is written. | |
394 | ||
395 | These functions are called on all terminals, but do nothing | |
396 | on terminals whose standout mode does not work that way. */ | |
397 | ||
398 | turn_off_highlight () | |
399 | { | |
400 | if (TN_standout_width < 0) | |
401 | { | |
402 | if (standout_mode) | |
403 | OUTPUT_IF (TS_end_standout_mode); | |
404 | standout_mode = 0; | |
405 | } | |
406 | } | |
407 | ||
408 | turn_on_highlight () | |
409 | { | |
410 | if (TN_standout_width < 0) | |
411 | { | |
412 | if (!standout_mode) | |
413 | OUTPUT_IF (TS_standout_mode); | |
414 | standout_mode = 1; | |
415 | } | |
416 | } | |
417 | ||
418 | /* Set standout mode to the state it should be in for | |
419 | empty space inside windows. What this is, | |
420 | depends on the user option inverse-video. */ | |
421 | ||
422 | background_highlight () | |
423 | { | |
424 | if (TN_standout_width >= 0) | |
425 | return; | |
426 | if (inverse_video) | |
427 | turn_on_highlight (); | |
428 | else | |
429 | turn_off_highlight (); | |
430 | } | |
431 | ||
432 | /* Set standout mode to the mode specified for the text to be output. */ | |
433 | ||
434 | static | |
435 | highlight_if_desired () | |
436 | { | |
437 | if (TN_standout_width >= 0) | |
438 | return; | |
439 | if (!inverse_video == !standout_requested) | |
440 | turn_off_highlight (); | |
441 | else | |
442 | turn_on_highlight (); | |
443 | } | |
444 | \f | |
445 | /* Handle standout mode for terminals in which TN_standout_width >= 0. | |
446 | On these terminals, standout is controlled by markers that | |
ff11dfa1 | 447 | live inside the terminal's memory. TN_standout_width is the width |
08a24c47 JB |
448 | that the marker occupies in memory. Standout runs from the marker |
449 | to the end of the line on some terminals, or to the next | |
450 | turn-off-standout marker (TS_end_standout_mode) string | |
451 | on other terminals. */ | |
452 | ||
453 | /* Write a standout marker or end-standout marker at the front of the line | |
454 | at vertical position vpos. */ | |
455 | ||
456 | write_standout_marker (flag, vpos) | |
457 | int flag, vpos; | |
458 | { | |
459 | if (flag || (TS_end_standout_mode && !TF_teleray && !se_is_so | |
460 | && !(TF_xs && TN_standout_width == 0))) | |
461 | { | |
462 | cmgoto (vpos, 0); | |
463 | cmplus (TN_standout_width); | |
464 | OUTPUT (flag ? TS_standout_mode : TS_end_standout_mode); | |
465 | chars_wasted[curY] = TN_standout_width | 0100; | |
466 | } | |
467 | } | |
468 | \f | |
469 | /* External interface to control of standout mode. | |
470 | Call this when about to modify line at position VPOS | |
471 | and not change whether it is highlighted. */ | |
472 | ||
473 | reassert_line_highlight (highlight, vpos) | |
474 | int highlight; | |
475 | int vpos; | |
476 | { | |
1820044b | 477 | if (! FRAME_TERMCAP_P ((updating_frame ? updating_frame : selected_frame))) |
08a24c47 JB |
478 | { |
479 | (*reassert_line_highlight_hook) (highlight, vpos); | |
480 | return; | |
481 | } | |
482 | if (TN_standout_width < 0) | |
483 | /* Handle terminals where standout takes affect at output time */ | |
484 | standout_requested = highlight; | |
485 | else if (chars_wasted[vpos] == 0) | |
486 | /* For terminals with standout markers, write one on this line | |
487 | if there isn't one already. */ | |
488 | write_standout_marker (highlight, vpos); | |
489 | } | |
490 | ||
491 | /* Call this when about to modify line at position VPOS | |
492 | and change whether it is highlighted. */ | |
493 | ||
494 | change_line_highlight (new_highlight, vpos, first_unused_hpos) | |
495 | int new_highlight, vpos, first_unused_hpos; | |
496 | { | |
497 | standout_requested = new_highlight; | |
1820044b | 498 | if (! FRAME_TERMCAP_P (updating_frame)) |
08a24c47 JB |
499 | { |
500 | (*change_line_highlight_hook) (new_highlight, vpos, first_unused_hpos); | |
501 | return; | |
502 | } | |
503 | ||
504 | cursor_to (vpos, 0); | |
505 | ||
506 | if (TN_standout_width < 0) | |
507 | background_highlight (); | |
508 | /* If line starts with a marker, delete the marker */ | |
509 | else if (TS_clr_line && chars_wasted[curY]) | |
510 | { | |
511 | turn_off_insert (); | |
512 | /* On Teleray, make sure to erase the SO marker. */ | |
513 | if (TF_teleray) | |
514 | { | |
ff11dfa1 | 515 | cmgoto (curY - 1, FRAME_WIDTH (selected_frame) - 4); |
08a24c47 JB |
516 | OUTPUT ("\033S"); |
517 | curY++; /* ESC S moves to next line where the TS_standout_mode was */ | |
518 | curX = 0; | |
519 | } | |
520 | else | |
521 | cmgoto (curY, 0); /* reposition to kill standout marker */ | |
522 | } | |
523 | clear_end_of_line_raw (first_unused_hpos); | |
524 | reassert_line_highlight (new_highlight, curY); | |
525 | } | |
526 | \f | |
527 | ||
528 | /* Move to absolute position, specified origin 0 */ | |
529 | ||
530 | cursor_to (row, col) | |
4746118a | 531 | int row, col; |
08a24c47 | 532 | { |
1820044b | 533 | if (! FRAME_TERMCAP_P ((updating_frame |
ff11dfa1 JB |
534 | ? updating_frame |
535 | : selected_frame)) | |
08a24c47 JB |
536 | && cursor_to_hook) |
537 | { | |
538 | (*cursor_to_hook) (row, col); | |
539 | return; | |
540 | } | |
541 | ||
542 | col += chars_wasted[row] & 077; | |
543 | if (curY == row && curX == col) | |
544 | return; | |
545 | if (!TF_standout_motion) | |
546 | background_highlight (); | |
547 | if (!TF_insmode_motion) | |
548 | turn_off_insert (); | |
549 | cmgoto (row, col); | |
550 | } | |
551 | ||
552 | /* Similar but don't take any account of the wasted characters. */ | |
553 | ||
554 | raw_cursor_to (row, col) | |
4746118a | 555 | int row, col; |
08a24c47 | 556 | { |
1820044b | 557 | if (! FRAME_TERMCAP_P ((updating_frame ? updating_frame : selected_frame))) |
08a24c47 JB |
558 | { |
559 | (*raw_cursor_to_hook) (row, col); | |
560 | return; | |
561 | } | |
562 | if (curY == row && curX == col) | |
563 | return; | |
564 | if (!TF_standout_motion) | |
565 | background_highlight (); | |
566 | if (!TF_insmode_motion) | |
567 | turn_off_insert (); | |
568 | cmgoto (row, col); | |
569 | } | |
570 | \f | |
571 | /* Erase operations */ | |
572 | ||
ff11dfa1 | 573 | /* clear from cursor to end of frame */ |
08a24c47 JB |
574 | clear_to_end () |
575 | { | |
576 | register int i; | |
577 | ||
1820044b | 578 | if (clear_to_end_hook && FRAME_TERMCAP_P (updating_frame)) |
08a24c47 JB |
579 | { |
580 | (*clear_to_end_hook) (); | |
581 | return; | |
582 | } | |
583 | if (TS_clr_to_bottom) | |
584 | { | |
585 | background_highlight (); | |
586 | OUTPUT (TS_clr_to_bottom); | |
ff11dfa1 | 587 | bzero (chars_wasted + curY, FRAME_HEIGHT (selected_frame) - curY); |
08a24c47 JB |
588 | } |
589 | else | |
590 | { | |
ff11dfa1 | 591 | for (i = curY; i < FRAME_HEIGHT (selected_frame); i++) |
08a24c47 JB |
592 | { |
593 | cursor_to (i, 0); | |
ff11dfa1 | 594 | clear_end_of_line_raw (FRAME_WIDTH (selected_frame)); |
08a24c47 JB |
595 | } |
596 | } | |
597 | } | |
598 | ||
ff11dfa1 | 599 | /* Clear entire frame */ |
08a24c47 | 600 | |
ff11dfa1 | 601 | clear_frame () |
08a24c47 | 602 | { |
ff11dfa1 | 603 | if (clear_frame_hook |
1820044b | 604 | && ! FRAME_TERMCAP_P ((updating_frame ? updating_frame : selected_frame))) |
08a24c47 | 605 | { |
ff11dfa1 | 606 | (*clear_frame_hook) (); |
08a24c47 JB |
607 | return; |
608 | } | |
ff11dfa1 | 609 | if (TS_clr_frame) |
08a24c47 JB |
610 | { |
611 | background_highlight (); | |
ff11dfa1 JB |
612 | OUTPUT (TS_clr_frame); |
613 | bzero (chars_wasted, FRAME_HEIGHT (selected_frame)); | |
08a24c47 JB |
614 | cmat (0, 0); |
615 | } | |
616 | else | |
617 | { | |
618 | cursor_to (0, 0); | |
619 | clear_to_end (); | |
620 | } | |
621 | } | |
622 | ||
623 | /* Clear to end of line, but do not clear any standout marker. | |
624 | Assumes that the cursor is positioned at a character of real text, | |
625 | which implies it cannot be before a standout marker | |
626 | unless the marker has zero width. | |
627 | ||
628 | Note that the cursor may be moved. */ | |
629 | ||
630 | clear_end_of_line (first_unused_hpos) | |
631 | int first_unused_hpos; | |
632 | { | |
a796ac82 | 633 | static GLYPH buf = SPACEGLYPH; |
1820044b | 634 | if (FRAME_TERMCAP_P (selected_frame) |
08a24c47 | 635 | && TN_standout_width == 0 && curX == 0 && chars_wasted[curY] != 0) |
a796ac82 | 636 | write_glyphs (&buf, 1); |
08a24c47 JB |
637 | clear_end_of_line_raw (first_unused_hpos); |
638 | } | |
639 | ||
640 | /* Clear from cursor to end of line. | |
641 | Assume that the line is already clear starting at column first_unused_hpos. | |
642 | If the cursor is at a standout marker, erase the marker. | |
643 | ||
644 | Note that the cursor may be moved, on terminals lacking a `ce' string. */ | |
645 | ||
646 | clear_end_of_line_raw (first_unused_hpos) | |
647 | int first_unused_hpos; | |
648 | { | |
649 | register int i; | |
650 | ||
651 | if (clear_end_of_line_hook | |
1820044b | 652 | && ! FRAME_TERMCAP_P ((updating_frame |
ff11dfa1 JB |
653 | ? updating_frame |
654 | : selected_frame))) | |
08a24c47 JB |
655 | { |
656 | (*clear_end_of_line_hook) (first_unused_hpos); | |
657 | return; | |
658 | } | |
659 | ||
660 | first_unused_hpos += chars_wasted[curY] & 077; | |
661 | if (curX >= first_unused_hpos) | |
662 | return; | |
663 | /* Notice if we are erasing a magic cookie */ | |
664 | if (curX == 0) | |
665 | chars_wasted[curY] = 0; | |
666 | background_highlight (); | |
667 | if (TS_clr_line) | |
668 | { | |
669 | OUTPUT1 (TS_clr_line); | |
670 | } | |
671 | else | |
672 | { /* have to do it the hard way */ | |
673 | turn_off_insert (); | |
674 | ||
675 | /* Do not write in last row last col with Autowrap on. */ | |
ff11dfa1 JB |
676 | if (AutoWrap && curY == FRAME_HEIGHT (selected_frame) - 1 |
677 | && first_unused_hpos == FRAME_WIDTH (selected_frame)) | |
08a24c47 JB |
678 | first_unused_hpos--; |
679 | ||
680 | for (i = curX; i < first_unused_hpos; i++) | |
681 | { | |
682 | if (termscript) | |
683 | fputc (' ', termscript); | |
684 | putchar (' '); | |
685 | } | |
686 | cmplus (first_unused_hpos - curX); | |
687 | } | |
688 | } | |
689 | \f | |
690 | ||
691 | write_glyphs (string, len) | |
692 | register GLYPH *string; | |
693 | register int len; | |
694 | { | |
695 | register GLYPH g; | |
696 | register int tlen = GLYPH_TABLE_LENGTH; | |
697 | register Lisp_Object *tbase = GLYPH_TABLE_BASE; | |
698 | ||
699 | if (write_glyphs_hook | |
1820044b | 700 | && ! FRAME_TERMCAP_P ((updating_frame ? updating_frame : selected_frame))) |
08a24c47 JB |
701 | { |
702 | (*write_glyphs_hook) (string, len); | |
703 | return; | |
704 | } | |
705 | ||
706 | highlight_if_desired (); | |
707 | turn_off_insert (); | |
708 | ||
709 | /* Don't dare write in last column of bottom line, if AutoWrap, | |
ff11dfa1 | 710 | since that would scroll the whole frame on some terminals. */ |
08a24c47 JB |
711 | |
712 | if (AutoWrap | |
ff11dfa1 | 713 | && curY + 1 == FRAME_HEIGHT (selected_frame) |
08a24c47 | 714 | && (curX + len - (chars_wasted[curY] & 077) |
ff11dfa1 | 715 | == FRAME_WIDTH (selected_frame))) |
08a24c47 JB |
716 | len --; |
717 | ||
718 | cmplus (len); | |
719 | while (--len >= 0) | |
720 | { | |
721 | g = *string++; | |
722 | /* Check quickly for G beyond length of table. | |
723 | That implies it isn't an alias and is simple. */ | |
724 | if (g >= tlen) | |
725 | { | |
726 | simple: | |
727 | putc (g & 0xff, stdout); | |
728 | if (ferror (stdout)) | |
729 | clearerr (stdout); | |
730 | if (termscript) | |
731 | putc (g & 0xff, termscript); | |
732 | } | |
733 | else | |
734 | { | |
735 | /* G has an entry in Vglyph_table, | |
736 | so process any alias and then test for simpleness. */ | |
737 | while (GLYPH_ALIAS_P (tbase, tlen, g)) | |
738 | g = GLYPH_ALIAS (tbase, g); | |
739 | if (GLYPH_SIMPLE_P (tbase, tlen, g)) | |
740 | goto simple; | |
741 | else | |
742 | { | |
743 | /* Here if G (or its definition as an alias) is not simple. */ | |
744 | fwrite (GLYPH_STRING (tbase, g), 1, GLYPH_LENGTH (tbase, g), | |
745 | stdout); | |
746 | if (ferror (stdout)) | |
747 | clearerr (stdout); | |
748 | if (termscript) | |
749 | fwrite (GLYPH_STRING (tbase, g), 1, GLYPH_LENGTH (tbase, g), | |
750 | termscript); | |
751 | } | |
752 | } | |
753 | } | |
754 | } | |
755 | ||
756 | /* If start is zero, insert blanks instead of a string at start */ | |
757 | ||
758 | insert_glyphs (start, len) | |
759 | register GLYPH *start; | |
760 | register int len; | |
761 | { | |
762 | char *buf; | |
763 | register GLYPH g; | |
764 | register int tlen = GLYPH_TABLE_LENGTH; | |
765 | register Lisp_Object *tbase = GLYPH_TABLE_BASE; | |
766 | ||
1820044b | 767 | if (insert_glyphs_hook && ! FRAME_TERMCAP_P (updating_frame)) |
08a24c47 JB |
768 | { |
769 | (*insert_glyphs_hook) (start, len); | |
770 | return; | |
771 | } | |
772 | highlight_if_desired (); | |
773 | ||
774 | if (TS_ins_multi_chars) | |
775 | { | |
776 | buf = tparam (TS_ins_multi_chars, 0, 0, len); | |
777 | OUTPUT1 (buf); | |
778 | free (buf); | |
779 | if (start) | |
780 | write_glyphs (start, len); | |
781 | return; | |
782 | } | |
783 | ||
784 | turn_on_insert (); | |
785 | cmplus (len); | |
786 | while (--len >= 0) | |
787 | { | |
788 | OUTPUT1_IF (TS_ins_char); | |
789 | if (!start) | |
790 | g = SPACEGLYPH; | |
791 | else | |
792 | g = *start++; | |
793 | ||
794 | if (GLYPH_SIMPLE_P (tbase, tlen, g)) | |
795 | { | |
796 | putc (g & 0xff, stdout); | |
797 | if (ferror (stdout)) | |
798 | clearerr (stdout); | |
799 | if (termscript) | |
800 | putc (g & 0xff, termscript); | |
801 | } | |
802 | else | |
803 | { | |
804 | fwrite (GLYPH_STRING (tbase, g), 1, GLYPH_LENGTH (tbase, g), stdout); | |
805 | if (ferror (stdout)) | |
806 | clearerr (stdout); | |
807 | if (termscript) | |
808 | fwrite (GLYPH_STRING (tbase, g), 1, GLYPH_LENGTH (tbase, g), | |
809 | termscript); | |
810 | } | |
811 | ||
812 | OUTPUT1_IF (TS_pad_inserted_char); | |
813 | } | |
814 | } | |
815 | ||
816 | delete_glyphs (n) | |
817 | register int n; | |
818 | { | |
819 | char *buf; | |
820 | register int i; | |
821 | ||
1820044b | 822 | if (delete_glyphs_hook && ! FRAME_TERMCAP_P (updating_frame)) |
08a24c47 JB |
823 | { |
824 | (*delete_glyphs_hook) (n); | |
825 | return; | |
826 | } | |
827 | ||
828 | if (delete_in_insert_mode) | |
829 | { | |
830 | turn_on_insert (); | |
831 | } | |
832 | else | |
833 | { | |
834 | turn_off_insert (); | |
835 | OUTPUT_IF (TS_delete_mode); | |
836 | } | |
837 | ||
838 | if (TS_del_multi_chars) | |
839 | { | |
840 | buf = tparam (TS_del_multi_chars, 0, 0, n); | |
841 | OUTPUT1 (buf); | |
842 | free (buf); | |
843 | } | |
844 | else | |
845 | for (i = 0; i < n; i++) | |
846 | OUTPUT1 (TS_del_char); | |
847 | if (!delete_in_insert_mode) | |
848 | OUTPUT_IF (TS_end_delete_mode); | |
849 | } | |
850 | \f | |
851 | /* Insert N lines at vpos VPOS. If N is negative, delete -N lines. */ | |
852 | ||
853 | ins_del_lines (vpos, n) | |
854 | int vpos, n; | |
855 | { | |
856 | char *multi = n > 0 ? TS_ins_multi_lines : TS_del_multi_lines; | |
857 | char *single = n > 0 ? TS_ins_line : TS_del_line; | |
858 | char *scroll = n > 0 ? TS_rev_scroll : TS_fwd_scroll; | |
859 | ||
860 | register int i = n > 0 ? n : -n; | |
861 | register char *buf; | |
862 | ||
1820044b | 863 | if (ins_del_lines_hook && ! FRAME_TERMCAP_P (updating_frame)) |
08a24c47 JB |
864 | { |
865 | (*ins_del_lines_hook) (vpos, n); | |
866 | return; | |
867 | } | |
868 | ||
869 | /* If the lines below the insertion are being pushed | |
870 | into the end of the window, this is the same as clearing; | |
871 | and we know the lines are already clear, since the matching | |
872 | deletion has already been done. So can ignore this. */ | |
873 | /* If the lines below the deletion are blank lines coming | |
874 | out of the end of the window, don't bother, | |
875 | as there will be a matching inslines later that will flush them. */ | |
876 | if (scroll_region_ok && vpos + i >= specified_window) | |
877 | return; | |
ff11dfa1 | 878 | if (!memory_below_frame && vpos + i >= FRAME_HEIGHT (selected_frame)) |
08a24c47 JB |
879 | return; |
880 | ||
881 | if (multi) | |
882 | { | |
883 | raw_cursor_to (vpos, 0); | |
884 | background_highlight (); | |
885 | buf = tparam (multi, 0, 0, i); | |
886 | OUTPUT (buf); | |
887 | free (buf); | |
888 | } | |
889 | else if (single) | |
890 | { | |
891 | raw_cursor_to (vpos, 0); | |
892 | background_highlight (); | |
893 | while (--i >= 0) | |
894 | OUTPUT (single); | |
895 | if (TF_teleray) | |
896 | curX = 0; | |
897 | } | |
898 | else | |
899 | { | |
900 | set_scroll_region (vpos, specified_window); | |
901 | if (n < 0) | |
902 | raw_cursor_to (specified_window - 1, 0); | |
903 | else | |
904 | raw_cursor_to (vpos, 0); | |
905 | background_highlight (); | |
906 | while (--i >= 0) | |
907 | OUTPUTL (scroll, specified_window - vpos); | |
908 | set_scroll_region (0, specified_window); | |
909 | } | |
910 | ||
911 | if (TN_standout_width >= 0) | |
912 | { | |
913 | register lower_limit | |
914 | = (scroll_region_ok | |
915 | ? specified_window | |
ff11dfa1 | 916 | : FRAME_HEIGHT (selected_frame)); |
08a24c47 JB |
917 | |
918 | if (n < 0) | |
919 | { | |
920 | bcopy (&chars_wasted[vpos - n], &chars_wasted[vpos], | |
921 | lower_limit - vpos + n); | |
922 | bzero (&chars_wasted[lower_limit + n], - n); | |
923 | } | |
924 | else | |
925 | { | |
926 | bcopy (&chars_wasted[vpos], ©buf[vpos], lower_limit - vpos - n); | |
927 | bcopy (©buf[vpos], &chars_wasted[vpos + n], | |
928 | lower_limit - vpos - n); | |
929 | bzero (&chars_wasted[vpos], n); | |
930 | } | |
931 | } | |
ff11dfa1 | 932 | if (!scroll_region_ok && memory_below_frame && n < 0) |
08a24c47 | 933 | { |
ff11dfa1 | 934 | cursor_to (FRAME_HEIGHT (selected_frame) + n, 0); |
08a24c47 JB |
935 | clear_to_end (); |
936 | } | |
937 | } | |
938 | \f | |
939 | /* Compute cost of sending "str", in characters, | |
940 | not counting any line-dependent padding. */ | |
941 | ||
942 | int | |
943 | string_cost (str) | |
944 | char *str; | |
945 | { | |
946 | cost = 0; | |
947 | if (str) | |
948 | tputs (str, 0, evalcost); | |
949 | return cost; | |
950 | } | |
951 | ||
952 | /* Compute cost of sending "str", in characters, | |
953 | counting any line-dependent padding at one line. */ | |
954 | ||
955 | static int | |
956 | string_cost_one_line (str) | |
957 | char *str; | |
958 | { | |
959 | cost = 0; | |
960 | if (str) | |
961 | tputs (str, 1, evalcost); | |
962 | return cost; | |
963 | } | |
964 | ||
965 | /* Compute per line amount of line-dependent padding, | |
966 | in tenths of characters. */ | |
967 | ||
968 | int | |
969 | per_line_cost (str) | |
970 | register char *str; | |
971 | { | |
972 | cost = 0; | |
973 | if (str) | |
974 | tputs (str, 0, evalcost); | |
975 | cost = - cost; | |
976 | if (str) | |
977 | tputs (str, 10, evalcost); | |
978 | return cost; | |
979 | } | |
980 | ||
981 | #ifndef old | |
982 | /* char_ins_del_cost[n] is cost of inserting N characters. | |
983 | char_ins_del_cost[-n] is cost of deleting N characters. */ | |
984 | ||
985 | int *char_ins_del_vector; | |
986 | ||
ff11dfa1 | 987 | #define char_ins_del_cost(f) (&char_ins_del_vector[FRAME_WIDTH ((f))]) |
08a24c47 JB |
988 | #endif |
989 | ||
990 | /* ARGSUSED */ | |
991 | static void | |
ff11dfa1 JB |
992 | calculate_ins_del_char_costs (frame) |
993 | FRAME_PTR frame; | |
08a24c47 JB |
994 | { |
995 | int ins_startup_cost, del_startup_cost; | |
996 | int ins_cost_per_char, del_cost_per_char; | |
997 | register int i; | |
998 | register int *p; | |
999 | ||
1000 | if (TS_ins_multi_chars) | |
1001 | { | |
1002 | ins_cost_per_char = 0; | |
1003 | ins_startup_cost = string_cost_one_line (TS_ins_multi_chars); | |
1004 | } | |
1005 | else if (TS_ins_char || TS_pad_inserted_char | |
1006 | || (TS_insert_mode && TS_end_insert_mode)) | |
1007 | { | |
1008 | ins_startup_cost = (30 * (string_cost (TS_insert_mode) | |
1009 | + string_cost (TS_end_insert_mode))) / 100; | |
1010 | ins_cost_per_char = (string_cost_one_line (TS_ins_char) | |
1011 | + string_cost_one_line (TS_pad_inserted_char)); | |
1012 | } | |
1013 | else | |
1014 | { | |
1015 | ins_startup_cost = 9999; | |
1016 | ins_cost_per_char = 0; | |
1017 | } | |
1018 | ||
1019 | if (TS_del_multi_chars) | |
1020 | { | |
1021 | del_cost_per_char = 0; | |
1022 | del_startup_cost = string_cost_one_line (TS_del_multi_chars); | |
1023 | } | |
1024 | else if (TS_del_char) | |
1025 | { | |
1026 | del_startup_cost = (string_cost (TS_delete_mode) | |
1027 | + string_cost (TS_end_delete_mode)); | |
1028 | if (delete_in_insert_mode) | |
1029 | del_startup_cost /= 2; | |
1030 | del_cost_per_char = string_cost_one_line (TS_del_char); | |
1031 | } | |
1032 | else | |
1033 | { | |
1034 | del_startup_cost = 9999; | |
1035 | del_cost_per_char = 0; | |
1036 | } | |
1037 | ||
1038 | /* Delete costs are at negative offsets */ | |
ff11dfa1 JB |
1039 | p = &char_ins_del_cost (frame)[0]; |
1040 | for (i = FRAME_WIDTH (selected_frame); --i >= 0;) | |
08a24c47 JB |
1041 | *--p = (del_startup_cost += del_cost_per_char); |
1042 | ||
1043 | /* Doing nothing is free */ | |
ff11dfa1 | 1044 | p = &char_ins_del_cost (frame)[0]; |
08a24c47 JB |
1045 | *p++ = 0; |
1046 | ||
1047 | /* Insert costs are at positive offsets */ | |
ff11dfa1 | 1048 | for (i = FRAME_WIDTH (frame); --i >= 0;) |
08a24c47 JB |
1049 | *p++ = (ins_startup_cost += ins_cost_per_char); |
1050 | } | |
1051 | ||
1052 | #ifdef HAVE_X_WINDOWS | |
e7308e06 | 1053 | extern int x_screen_planes; |
08a24c47 JB |
1054 | #endif |
1055 | ||
ff11dfa1 JB |
1056 | calculate_costs (frame) |
1057 | FRAME_PTR frame; | |
08a24c47 | 1058 | { |
ff11dfa1 | 1059 | register char *f = TS_set_scroll_region ? |
08a24c47 JB |
1060 | TS_set_scroll_region |
1061 | : TS_set_scroll_region_1; | |
1062 | ||
1063 | if (dont_calculate_costs) | |
1064 | return; | |
1065 | ||
1066 | #ifdef HAVE_X_WINDOWS | |
1820044b | 1067 | if (FRAME_X_P (frame)) |
08a24c47 | 1068 | { |
ff11dfa1 | 1069 | do_line_insertion_deletion_costs (frame, 0, ".5*", 0, ".5*", |
e7308e06 | 1070 | 0, 0, x_screen_planes); |
08a24c47 JB |
1071 | return; |
1072 | } | |
1073 | #endif | |
1074 | ||
1075 | /* These variables are only used for terminal stuff. They are allocated | |
ff11dfa1 | 1076 | once for the terminal frame of X-windows emacs, but not used afterwards. |
08a24c47 JB |
1077 | |
1078 | char_ins_del_vector (i.e., char_ins_del_cost) isn't used because | |
1079 | X turns off char_ins_del_ok. | |
1080 | ||
1081 | chars_wasted and copybuf are only used here in term.c in cases where | |
1082 | the term hook isn't called. */ | |
1083 | ||
1084 | if (chars_wasted != 0) | |
ff11dfa1 | 1085 | chars_wasted = (char *) xrealloc (chars_wasted, FRAME_HEIGHT (frame)); |
08a24c47 | 1086 | else |
ff11dfa1 | 1087 | chars_wasted = (char *) xmalloc (FRAME_HEIGHT (frame)); |
08a24c47 JB |
1088 | |
1089 | if (copybuf != 0) | |
ff11dfa1 | 1090 | copybuf = (char *) xrealloc (copybuf, FRAME_HEIGHT (frame)); |
08a24c47 | 1091 | else |
ff11dfa1 | 1092 | copybuf = (char *) xmalloc (FRAME_HEIGHT (frame)); |
08a24c47 JB |
1093 | |
1094 | if (char_ins_del_vector != 0) | |
1095 | char_ins_del_vector | |
1096 | = (int *) xrealloc (char_ins_del_vector, | |
1097 | (sizeof (int) | |
ff11dfa1 | 1098 | + 2 * FRAME_WIDTH (frame) * sizeof (int))); |
08a24c47 JB |
1099 | else |
1100 | char_ins_del_vector | |
1101 | = (int *) xmalloc (sizeof (int) | |
ff11dfa1 | 1102 | + 2 * FRAME_WIDTH (frame) * sizeof (int)); |
08a24c47 | 1103 | |
ff11dfa1 JB |
1104 | bzero (chars_wasted, FRAME_HEIGHT (frame)); |
1105 | bzero (copybuf, FRAME_HEIGHT (frame)); | |
08a24c47 | 1106 | bzero (char_ins_del_vector, (sizeof (int) |
ff11dfa1 | 1107 | + 2 * FRAME_WIDTH (frame) * sizeof (int))); |
08a24c47 | 1108 | |
ff11dfa1 JB |
1109 | if (f && (!TS_ins_line && !TS_del_line)) |
1110 | do_line_insertion_deletion_costs (frame, | |
08a24c47 JB |
1111 | TS_rev_scroll, TS_ins_multi_lines, |
1112 | TS_fwd_scroll, TS_del_multi_lines, | |
ff11dfa1 | 1113 | f, f, 1); |
08a24c47 | 1114 | else |
ff11dfa1 | 1115 | do_line_insertion_deletion_costs (frame, |
08a24c47 JB |
1116 | TS_ins_line, TS_ins_multi_lines, |
1117 | TS_del_line, TS_del_multi_lines, | |
1118 | 0, 0, 1); | |
1119 | ||
ff11dfa1 | 1120 | calculate_ins_del_char_costs (frame); |
08a24c47 JB |
1121 | |
1122 | /* Don't use TS_repeat if its padding is worse than sending the chars */ | |
1123 | if (TS_repeat && per_line_cost (TS_repeat) * baud_rate < 9000) | |
1124 | RPov = string_cost (TS_repeat); | |
1125 | else | |
ff11dfa1 | 1126 | RPov = FRAME_WIDTH (frame) * 2; |
08a24c47 JB |
1127 | |
1128 | cmcostinit (); /* set up cursor motion costs */ | |
1129 | } | |
1130 | \f | |
5c2c7893 JB |
1131 | /* Find the escape codes sent by the function keys for Vfunction_key_map. |
1132 | This function scans the termcap function key sequence entries, and | |
1133 | adds entries to Vfunction_key_map for each function key it finds. */ | |
1134 | ||
a796ac82 JB |
1135 | struct fkey_table { |
1136 | char *cap, *name; | |
1137 | }; | |
1138 | ||
1139 | static struct fkey_table keys[] = { | |
1140 | "kl", "left", | |
1141 | "kr", "right", | |
1142 | "ku", "up", | |
1143 | "kd", "down", | |
1144 | "K2", "center", | |
1145 | "k1", "f1", | |
1146 | "k2", "f2", | |
1147 | "k3", "f3", | |
1148 | "k4", "f4", | |
1149 | "k5", "f5", | |
1150 | "k6", "f6", | |
1151 | "k7", "f7", | |
1152 | "k8", "f8", | |
1153 | "k9", "f9", | |
1154 | "F1", "f11", | |
1155 | "F2", "f12", | |
1156 | "kh", "home", | |
1157 | "kH", "home-down", | |
1158 | "ka", "clear-tabs", | |
1159 | "kt", "clear-tab", | |
1160 | "kT", "set-tab", | |
1161 | "kC", "clear", | |
1162 | "kL", "deleteline", | |
1163 | "kM", "exit-insert", | |
1164 | "kE", "clear-eol", | |
1165 | "kS", "clear-eos", | |
1166 | "kI", "insert", | |
1167 | "kA", "insertline", | |
1168 | "kN", "next", | |
1169 | "kP", "prior", | |
1170 | "kF", "scroll-forward", | |
1171 | "kR", "scroll-reverse" | |
1172 | }; | |
1173 | ||
5c2c7893 JB |
1174 | void |
1175 | term_get_fkeys (address) | |
1176 | char **address; | |
1177 | { | |
1178 | extern char *tgetstr (); | |
5c2c7893 JB |
1179 | int i; |
1180 | ||
1181 | for (i = 0; i < (sizeof (keys)/sizeof (keys[0])); i++) | |
1182 | { | |
1183 | char *sequence = tgetstr (keys[i].cap, address); | |
1184 | if (sequence) | |
1185 | Fdefine_key (Vfunction_key_map, | |
1186 | build_string (sequence), | |
1187 | Fmake_vector (make_number (1), intern (keys[i].name))); | |
1188 | } | |
a796ac82 JB |
1189 | |
1190 | /* The uses of the "k0" capability are inconsistent; sometimes it | |
1191 | describes F10, whereas othertimes it describes F0 and "k;" describes F10. | |
1192 | We will attempt to politely accomodate both systems by testing for | |
1193 | "k;", and if it is present, assuming that "k0" denotes F0, otherwise F10. | |
1194 | */ | |
1195 | { | |
1196 | char *k_semi = tgetstr ("k;", address); | |
1197 | char *k0 = tgetstr ("k0", address); | |
1198 | char *k0_name = "f10"; | |
1199 | ||
1200 | if (k_semi) | |
1201 | { | |
1202 | Fdefine_key (Vfunction_key_map, | |
1203 | build_string (k_semi), | |
1204 | Fmake_vector (make_number (1), intern ("f10"))); | |
1205 | k0_name = "f0"; | |
1206 | } | |
1207 | ||
1208 | if (k0) | |
1209 | Fdefine_key (Vfunction_key_map, | |
1210 | build_string (k0), | |
1211 | Fmake_vector (make_number (1), intern (k0_name))); | |
1212 | } | |
5c2c7893 JB |
1213 | } |
1214 | ||
1215 | \f | |
08a24c47 JB |
1216 | term_init (terminal_type) |
1217 | char *terminal_type; | |
1218 | { | |
1219 | char *area; | |
1220 | char **address = &area; | |
1221 | char buffer[2044]; | |
1222 | register char *p; | |
1223 | int status; | |
1224 | ||
1225 | extern char *tgetstr (); | |
1226 | ||
1227 | Wcm_clear (); | |
1228 | dont_calculate_costs = 0; | |
1229 | ||
1230 | status = tgetent (buffer, terminal_type); | |
1231 | if (status < 0) | |
1232 | fatal ("Cannot open termcap database file.\n"); | |
1233 | if (status == 0) | |
1234 | fatal ("Terminal type %s is not defined.\n", terminal_type); | |
1235 | ||
1236 | #ifdef TERMINFO | |
1237 | area = (char *) malloc (2044); | |
1238 | #else | |
1239 | area = (char *) malloc (strlen (buffer)); | |
1240 | #endif /* not TERMINFO */ | |
1241 | if (area == 0) | |
1242 | abort (); | |
1243 | ||
1244 | TS_ins_line = tgetstr ("al", address); | |
1245 | TS_ins_multi_lines = tgetstr ("AL", address); | |
1246 | TS_bell = tgetstr ("bl", address); | |
1247 | BackTab = tgetstr ("bt", address); | |
1248 | TS_clr_to_bottom = tgetstr ("cd", address); | |
1249 | TS_clr_line = tgetstr ("ce", address); | |
ff11dfa1 | 1250 | TS_clr_frame = tgetstr ("cl", address); |
08a24c47 JB |
1251 | ColPosition = tgetstr ("ch", address); |
1252 | AbsPosition = tgetstr ("cm", address); | |
1253 | CR = tgetstr ("cr", address); | |
1254 | TS_set_scroll_region = tgetstr ("cs", address); | |
1255 | TS_set_scroll_region_1 = tgetstr ("cS", address); | |
1256 | RowPosition = tgetstr ("cv", address); | |
1257 | TS_del_char = tgetstr ("dc", address); | |
1258 | TS_del_multi_chars = tgetstr ("DC", address); | |
1259 | TS_del_line = tgetstr ("dl", address); | |
1260 | TS_del_multi_lines = tgetstr ("DL", address); | |
1261 | TS_delete_mode = tgetstr ("dm", address); | |
1262 | TS_end_delete_mode = tgetstr ("ed", address); | |
1263 | TS_end_insert_mode = tgetstr ("ei", address); | |
1264 | Home = tgetstr ("ho", address); | |
1265 | TS_ins_char = tgetstr ("ic", address); | |
1266 | TS_ins_multi_chars = tgetstr ("IC", address); | |
1267 | TS_insert_mode = tgetstr ("im", address); | |
1268 | TS_pad_inserted_char = tgetstr ("ip", address); | |
1269 | TS_end_keypad_mode = tgetstr ("ke", address); | |
1270 | TS_keypad_mode = tgetstr ("ks", address); | |
1271 | LastLine = tgetstr ("ll", address); | |
1272 | Right = tgetstr ("nd", address); | |
1273 | Down = tgetstr ("do", address); | |
1274 | if (!Down) | |
1275 | Down = tgetstr ("nl", address); /* Obsolete name for "do" */ | |
1276 | #ifdef VMS | |
1277 | /* VMS puts a carriage return before each linefeed, | |
1278 | so it is not safe to use linefeeds. */ | |
1279 | if (Down && Down[0] == '\n' && Down[1] == '\0') | |
1280 | Down = 0; | |
1281 | #endif /* VMS */ | |
1282 | if (tgetflag ("bs")) | |
1283 | Left = "\b"; /* can't possibly be longer! */ | |
1284 | else /* (Actually, "bs" is obsolete...) */ | |
1285 | Left = tgetstr ("le", address); | |
1286 | if (!Left) | |
1287 | Left = tgetstr ("bc", address); /* Obsolete name for "le" */ | |
1288 | TS_pad_char = tgetstr ("pc", address); | |
1289 | TS_repeat = tgetstr ("rp", address); | |
1290 | TS_end_standout_mode = tgetstr ("se", address); | |
1291 | TS_fwd_scroll = tgetstr ("sf", address); | |
1292 | TS_standout_mode = tgetstr ("so", address); | |
1293 | TS_rev_scroll = tgetstr ("sr", address); | |
1294 | Wcm.cm_tab = tgetstr ("ta", address); | |
1295 | TS_end_termcap_modes = tgetstr ("te", address); | |
1296 | TS_termcap_modes = tgetstr ("ti", address); | |
1297 | Up = tgetstr ("up", address); | |
1298 | TS_visible_bell = tgetstr ("vb", address); | |
1299 | TS_end_visual_mode = tgetstr ("ve", address); | |
1300 | TS_visual_mode = tgetstr ("vs", address); | |
1301 | TS_set_window = tgetstr ("wi", address); | |
1302 | MultiUp = tgetstr ("UP", address); | |
1303 | MultiDown = tgetstr ("DO", address); | |
1304 | MultiLeft = tgetstr ("LE", address); | |
1305 | MultiRight = tgetstr ("RI", address); | |
1306 | ||
1307 | AutoWrap = tgetflag ("am"); | |
ff11dfa1 | 1308 | memory_below_frame = tgetflag ("db"); |
08a24c47 JB |
1309 | TF_hazeltine = tgetflag ("hz"); |
1310 | must_write_spaces = tgetflag ("in"); | |
1311 | meta_key = tgetflag ("km") || tgetflag ("MT"); | |
1312 | TF_insmode_motion = tgetflag ("mi"); | |
1313 | TF_standout_motion = tgetflag ("ms"); | |
1314 | TF_underscore = tgetflag ("ul"); | |
1315 | MagicWrap = tgetflag ("xn"); | |
1316 | TF_xs = tgetflag ("xs"); | |
1317 | TF_teleray = tgetflag ("xt"); | |
1318 | ||
5c2c7893 JB |
1319 | term_get_fkeys (address); |
1320 | ||
ff11dfa1 JB |
1321 | /* Get frame size from system, or else from termcap. */ |
1322 | get_frame_size (&FRAME_WIDTH (selected_frame), | |
1323 | &FRAME_HEIGHT (selected_frame)); | |
1324 | if (FRAME_WIDTH (selected_frame) <= 0) | |
1325 | FRAME_WIDTH (selected_frame) = tgetnum ("co"); | |
1326 | if (FRAME_HEIGHT (selected_frame) <= 0) | |
1327 | FRAME_HEIGHT (selected_frame) = tgetnum ("li"); | |
08a24c47 JB |
1328 | |
1329 | min_padding_speed = tgetnum ("pb"); | |
1330 | TN_standout_width = tgetnum ("sg"); | |
1331 | TabWidth = tgetnum ("tw"); | |
1332 | ||
1333 | #ifdef VMS | |
1334 | /* These capabilities commonly use ^J. | |
1335 | I don't know why, but sending them on VMS does not work; | |
1336 | it causes following spaces to be lost, sometimes. | |
1337 | For now, the simplest fix is to avoid using these capabilities ever. */ | |
1338 | if (Down && Down[0] == '\n') | |
1339 | Down = 0; | |
1340 | #endif /* VMS */ | |
1341 | ||
1342 | if (!TS_bell) | |
1343 | TS_bell = "\07"; | |
1344 | ||
1345 | if (!TS_fwd_scroll) | |
1346 | TS_fwd_scroll = Down; | |
1347 | ||
1348 | PC = TS_pad_char ? *TS_pad_char : 0; | |
1349 | ||
1350 | if (TabWidth < 0) | |
1351 | TabWidth = 8; | |
1352 | ||
1353 | /* Turned off since /etc/termcap seems to have :ta= for most terminals | |
1354 | and newer termcap doc does not seem to say there is a default. | |
1355 | if (!Wcm.cm_tab) | |
1356 | Wcm.cm_tab = "\t"; | |
1357 | */ | |
1358 | ||
1359 | if (TS_standout_mode == 0) | |
1360 | { | |
1361 | TN_standout_width = tgetnum ("ug"); | |
1362 | TS_end_standout_mode = tgetstr ("ue", address); | |
1363 | TS_standout_mode = tgetstr ("us", address); | |
1364 | } | |
1365 | ||
1366 | if (TF_teleray) | |
1367 | { | |
1368 | Wcm.cm_tab = 0; | |
1369 | /* Teleray: most programs want a space in front of TS_standout_mode, | |
1370 | but Emacs can do without it (and give one extra column). */ | |
1371 | TS_standout_mode = "\033RD"; | |
1372 | TN_standout_width = 1; | |
1373 | /* But that means we cannot rely on ^M to go to column zero! */ | |
1374 | CR = 0; | |
1375 | /* LF can't be trusted either -- can alter hpos */ | |
1376 | /* if move at column 0 thru a line with TS_standout_mode */ | |
1377 | Down = 0; | |
1378 | } | |
1379 | ||
1380 | /* Special handling for certain terminal types known to need it */ | |
1381 | ||
1382 | if (!strcmp (terminal_type, "supdup")) | |
1383 | { | |
ff11dfa1 | 1384 | memory_below_frame = 1; |
08a24c47 JB |
1385 | Wcm.cm_losewrap = 1; |
1386 | } | |
1387 | if (!strncmp (terminal_type, "c10", 3) | |
1388 | || !strcmp (terminal_type, "perq")) | |
1389 | { | |
1390 | /* Supply a makeshift :wi string. | |
1391 | This string is not valid in general since it works only | |
1392 | for windows starting at the upper left corner; | |
1393 | but that is all Emacs uses. | |
1394 | ||
ff11dfa1 | 1395 | This string works only if the frame is using |
08a24c47 JB |
1396 | the top of the video memory, because addressing is memory-relative. |
1397 | So first check the :ti string to see if that is true. | |
1398 | ||
1399 | It would be simpler if the :wi string could go in the termcap | |
1400 | entry, but it can't because it is not fully valid. | |
1401 | If it were in the termcap entry, it would confuse other programs. */ | |
1402 | if (!TS_set_window) | |
1403 | { | |
1404 | p = TS_termcap_modes; | |
1405 | while (*p && strcmp (p, "\033v ")) | |
1406 | p++; | |
1407 | if (*p) | |
1408 | TS_set_window = "\033v%C %C %C %C "; | |
1409 | } | |
1410 | /* Termcap entry often fails to have :in: flag */ | |
1411 | must_write_spaces = 1; | |
1412 | /* :ti string typically fails to have \E^G! in it */ | |
1413 | /* This limits scope of insert-char to one line. */ | |
1414 | strcpy (area, TS_termcap_modes); | |
1415 | strcat (area, "\033\007!"); | |
1416 | TS_termcap_modes = area; | |
1417 | area += strlen (area) + 1; | |
1418 | p = AbsPosition; | |
1419 | /* Change all %+ parameters to %C, to handle | |
1420 | values above 96 correctly for the C100. */ | |
1421 | while (*p) | |
1422 | { | |
1423 | if (p[0] == '%' && p[1] == '+') | |
1424 | p[1] = 'C'; | |
1425 | p++; | |
1426 | } | |
1427 | } | |
1428 | ||
ff11dfa1 JB |
1429 | FrameRows = FRAME_HEIGHT (selected_frame); |
1430 | FrameCols = FRAME_WIDTH (selected_frame); | |
1431 | specified_window = FRAME_HEIGHT (selected_frame); | |
08a24c47 JB |
1432 | |
1433 | if (Wcm_init () == -1) /* can't do cursor motion */ | |
1434 | #ifdef VMS | |
1435 | fatal ("Terminal type \"%s\" is not powerful enough to run Emacs.\n\ | |
1436 | It lacks the ability to position the cursor.\n\ | |
1437 | If that is not the actual type of terminal you have, use either the\n\ | |
1438 | DCL command `SET TERMINAL/DEVICE= ...' for DEC-compatible terminals,\n\ | |
1439 | or `define EMACS_TERM \"terminal type\"' for non-DEC terminals.\n", | |
1440 | terminal_type); | |
1441 | #else | |
1442 | fatal ("Terminal type \"%s\" is not powerful enough to run Emacs.\n\ | |
1443 | It lacks the ability to position the cursor.\n\ | |
1444 | If that is not the actual type of terminal you have,\n\ | |
1445 | use the C-shell command `setenv TERM ...' to specify the correct type.\n\ | |
1446 | It may be necessary to do `unsetenv TERMCAP' as well.\n", | |
1447 | terminal_type); | |
1448 | #endif | |
ff11dfa1 JB |
1449 | if (FRAME_HEIGHT (selected_frame) <= 0 |
1450 | || FRAME_WIDTH (selected_frame) <= 0) | |
1451 | fatal ("The frame size has not been specified."); | |
08a24c47 JB |
1452 | |
1453 | delete_in_insert_mode | |
1454 | = TS_delete_mode && TS_insert_mode | |
1455 | && !strcmp (TS_delete_mode, TS_insert_mode); | |
1456 | ||
1457 | se_is_so = (TS_standout_mode | |
1458 | && TS_end_standout_mode | |
1459 | && !strcmp (TS_standout_mode, TS_end_standout_mode)); | |
1460 | ||
1461 | /* Remove width of standout marker from usable width of line */ | |
1462 | if (TN_standout_width > 0) | |
ff11dfa1 | 1463 | FRAME_WIDTH (selected_frame) -= TN_standout_width; |
08a24c47 JB |
1464 | |
1465 | UseTabs = tabs_safe_p () && TabWidth == 8; | |
1466 | ||
1467 | scroll_region_ok | |
1468 | = (Wcm.cm_abs | |
1469 | && (TS_set_window || TS_set_scroll_region || TS_set_scroll_region_1)); | |
1470 | ||
1471 | line_ins_del_ok = (((TS_ins_line || TS_ins_multi_lines) | |
1472 | && (TS_del_line || TS_del_multi_lines)) | |
1473 | || (scroll_region_ok && TS_fwd_scroll && TS_rev_scroll)); | |
1474 | ||
1475 | char_ins_del_ok = ((TS_ins_char || TS_insert_mode | |
1476 | || TS_pad_inserted_char || TS_ins_multi_chars) | |
1477 | && (TS_del_char || TS_del_multi_chars)); | |
1478 | ||
1479 | fast_clear_end_of_line = TS_clr_line != 0; | |
1480 | ||
1481 | init_baud_rate (); | |
1482 | if (read_socket_hook) /* Baudrate is somewhat */ | |
1483 | /* meaningless in this case */ | |
1484 | baud_rate = 9600; | |
20a558dc JB |
1485 | |
1486 | FRAME_CAN_HAVE_SCROLLBARS (selected_frame) = 0; | |
1487 | FRAME_HAS_VERTICAL_SCROLLBARS (selected_frame) = 0; | |
08a24c47 JB |
1488 | } |
1489 | ||
1490 | /* VARARGS 1 */ | |
1491 | fatal (str, arg1, arg2) | |
4746118a | 1492 | char *str, *arg1, *arg2; |
08a24c47 JB |
1493 | { |
1494 | fprintf (stderr, "emacs: "); | |
1495 | fprintf (stderr, str, arg1, arg2); | |
1496 | fflush (stderr); | |
1497 | exit (1); | |
1498 | } |