Commit | Line | Data |
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d60d9f65 SS |
1 | /* display.c -- readline redisplay facility. */ |
2 | ||
3 | /* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc. | |
4 | ||
5 | This file is part of the GNU Readline Library, a library for | |
6 | reading lines of text with interactive input and history editing. | |
7 | ||
8 | The GNU Readline Library is free software; you can redistribute it | |
9 | and/or modify it under the terms of the GNU General Public License | |
1b17e766 | 10 | as published by the Free Software Foundation; either version 2, or |
d60d9f65 SS |
11 | (at your option) any later version. |
12 | ||
13 | The GNU Readline Library is distributed in the hope that it will be | |
14 | useful, but WITHOUT ANY WARRANTY; without even the implied warranty | |
15 | of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | The GNU General Public License is often shipped with GNU software, and | |
19 | is generally kept in a file called COPYING or LICENSE. If you do not | |
20 | have a copy of the license, write to the Free Software Foundation, | |
1b17e766 | 21 | 59 Temple Place, Suite 330, Boston, MA 02111 USA. */ |
d60d9f65 SS |
22 | #define READLINE_LIBRARY |
23 | ||
24 | #if defined (HAVE_CONFIG_H) | |
25 | # include <config.h> | |
26 | #endif | |
27 | ||
28 | #include <sys/types.h> | |
29 | ||
30 | #if defined (HAVE_UNISTD_H) | |
31 | # include <unistd.h> | |
32 | #endif /* HAVE_UNISTD_H */ | |
33 | ||
34 | #include "posixstat.h" | |
35 | ||
36 | #if defined (HAVE_STDLIB_H) | |
37 | # include <stdlib.h> | |
38 | #else | |
39 | # include "ansi_stdlib.h" | |
40 | #endif /* HAVE_STDLIB_H */ | |
41 | ||
42 | #include <stdio.h> | |
43 | ||
d60d9f65 SS |
44 | /* System-specific feature definitions and include files. */ |
45 | #include "rldefs.h" | |
46 | ||
47 | /* Termcap library stuff. */ | |
48 | #include "tcap.h" | |
49 | ||
50 | /* Some standard library routines. */ | |
51 | #include "readline.h" | |
52 | #include "history.h" | |
53 | ||
1b17e766 EZ |
54 | #include "rlprivate.h" |
55 | #include "xmalloc.h" | |
56 | ||
d60d9f65 SS |
57 | #if !defined (strchr) && !defined (__STDC__) |
58 | extern char *strchr (), *strrchr (); | |
59 | #endif /* !strchr && !__STDC__ */ | |
60 | ||
1b17e766 EZ |
61 | #if defined (HACK_TERMCAP_MOTION) |
62 | extern char *term_forward_char; | |
d60d9f65 | 63 | #endif |
d60d9f65 | 64 | |
1b17e766 EZ |
65 | static void update_line __P((char *, char *, int, int, int, int)); |
66 | static void space_to_eol __P((int)); | |
67 | static void delete_chars __P((int)); | |
68 | static void insert_some_chars __P((char *, int)); | |
69 | static void cr __P((void)); | |
d60d9f65 SS |
70 | |
71 | static int *inv_lbreaks, *vis_lbreaks; | |
1b17e766 | 72 | static int inv_lbsize, vis_lbsize; |
d60d9f65 SS |
73 | |
74 | /* Heuristic used to decide whether it is faster to move from CUR to NEW | |
75 | by backing up or outputting a carriage return and moving forward. */ | |
76 | #define CR_FASTER(new, cur) (((new) + 1) < ((cur) - (new))) | |
77 | ||
78 | /* **************************************************************** */ | |
79 | /* */ | |
80 | /* Display stuff */ | |
81 | /* */ | |
82 | /* **************************************************************** */ | |
83 | ||
84 | /* This is the stuff that is hard for me. I never seem to write good | |
85 | display routines in C. Let's see how I do this time. */ | |
86 | ||
87 | /* (PWP) Well... Good for a simple line updater, but totally ignores | |
88 | the problems of input lines longer than the screen width. | |
89 | ||
90 | update_line and the code that calls it makes a multiple line, | |
91 | automatically wrapping line update. Careful attention needs | |
92 | to be paid to the vertical position variables. */ | |
93 | ||
94 | /* Keep two buffers; one which reflects the current contents of the | |
95 | screen, and the other to draw what we think the new contents should | |
96 | be. Then compare the buffers, and make whatever changes to the | |
97 | screen itself that we should. Finally, make the buffer that we | |
98 | just drew into be the one which reflects the current contents of the | |
99 | screen, and place the cursor where it belongs. | |
100 | ||
101 | Commands that want to can fix the display themselves, and then let | |
102 | this function know that the display has been fixed by setting the | |
103 | RL_DISPLAY_FIXED variable. This is good for efficiency. */ | |
104 | ||
105 | /* Application-specific redisplay function. */ | |
106 | VFunction *rl_redisplay_function = rl_redisplay; | |
107 | ||
108 | /* Global variables declared here. */ | |
109 | /* What YOU turn on when you have handled all redisplay yourself. */ | |
110 | int rl_display_fixed = 0; | |
111 | ||
112 | int _rl_suppress_redisplay = 0; | |
113 | ||
114 | /* The stuff that gets printed out before the actual text of the line. | |
115 | This is usually pointing to rl_prompt. */ | |
116 | char *rl_display_prompt = (char *)NULL; | |
117 | ||
118 | /* Pseudo-global variables declared here. */ | |
119 | /* The visible cursor position. If you print some text, adjust this. */ | |
120 | int _rl_last_c_pos = 0; | |
121 | int _rl_last_v_pos = 0; | |
122 | ||
123 | /* Number of lines currently on screen minus 1. */ | |
124 | int _rl_vis_botlin = 0; | |
125 | ||
126 | /* Variables used only in this file. */ | |
127 | /* The last left edge of text that was displayed. This is used when | |
128 | doing horizontal scrolling. It shifts in thirds of a screenwidth. */ | |
129 | static int last_lmargin; | |
130 | ||
131 | /* The line display buffers. One is the line currently displayed on | |
132 | the screen. The other is the line about to be displayed. */ | |
133 | static char *visible_line = (char *)NULL; | |
134 | static char *invisible_line = (char *)NULL; | |
135 | ||
136 | /* A buffer for `modeline' messages. */ | |
137 | static char msg_buf[128]; | |
138 | ||
139 | /* Non-zero forces the redisplay even if we thought it was unnecessary. */ | |
140 | static int forced_display; | |
141 | ||
142 | /* Default and initial buffer size. Can grow. */ | |
143 | static int line_size = 1024; | |
144 | ||
145 | static char *local_prompt, *local_prompt_prefix; | |
146 | static int visible_length, prefix_length; | |
147 | ||
148 | /* The number of invisible characters in the line currently being | |
149 | displayed on the screen. */ | |
150 | static int visible_wrap_offset; | |
151 | ||
152 | /* static so it can be shared between rl_redisplay and update_line */ | |
153 | static int wrap_offset; | |
154 | ||
155 | /* The index of the last invisible_character in the prompt string. */ | |
156 | static int last_invisible; | |
157 | ||
158 | /* The length (buffer offset) of the first line of the last (possibly | |
159 | multi-line) buffer displayed on the screen. */ | |
160 | static int visible_first_line_len; | |
161 | ||
162 | /* Expand the prompt string S and return the number of visible | |
163 | characters in *LP, if LP is not null. This is currently more-or-less | |
164 | a placeholder for expansion. LIP, if non-null is a place to store the | |
1b17e766 | 165 | index of the last invisible character in the returned string. */ |
d60d9f65 SS |
166 | |
167 | /* Current implementation: | |
168 | \001 (^A) start non-visible characters | |
169 | \002 (^B) end non-visible characters | |
170 | all characters except \001 and \002 (following a \001) are copied to | |
171 | the returned string; all characters except those between \001 and | |
172 | \002 are assumed to be `visible'. */ | |
173 | ||
174 | static char * | |
175 | expand_prompt (pmt, lp, lip) | |
176 | char *pmt; | |
177 | int *lp, *lip; | |
178 | { | |
179 | char *r, *ret, *p; | |
180 | int l, rl, last, ignoring; | |
181 | ||
182 | /* Short-circuit if we can. */ | |
183 | if (strchr (pmt, RL_PROMPT_START_IGNORE) == 0) | |
184 | { | |
185 | r = savestring (pmt); | |
186 | if (lp) | |
187 | *lp = strlen (r); | |
188 | return r; | |
189 | } | |
190 | ||
191 | l = strlen (pmt); | |
192 | r = ret = xmalloc (l + 1); | |
193 | ||
194 | for (rl = ignoring = last = 0, p = pmt; p && *p; p++) | |
195 | { | |
196 | /* This code strips the invisible character string markers | |
197 | RL_PROMPT_START_IGNORE and RL_PROMPT_END_IGNORE */ | |
198 | if (*p == RL_PROMPT_START_IGNORE) | |
199 | { | |
200 | ignoring++; | |
201 | continue; | |
202 | } | |
203 | else if (ignoring && *p == RL_PROMPT_END_IGNORE) | |
204 | { | |
205 | ignoring = 0; | |
206 | last = r - ret - 1; | |
207 | continue; | |
208 | } | |
209 | else | |
210 | { | |
211 | *r++ = *p; | |
212 | if (!ignoring) | |
213 | rl++; | |
214 | } | |
215 | } | |
216 | ||
217 | *r = '\0'; | |
218 | if (lp) | |
219 | *lp = rl; | |
220 | if (lip) | |
221 | *lip = last; | |
222 | return ret; | |
223 | } | |
224 | ||
1b17e766 EZ |
225 | /* Just strip out RL_PROMPT_START_IGNORE and RL_PROMPT_END_IGNORE from |
226 | PMT and return the rest of PMT. */ | |
227 | char * | |
228 | _rl_strip_prompt (pmt) | |
229 | char *pmt; | |
230 | { | |
231 | char *ret; | |
232 | ||
233 | ret = expand_prompt (pmt, (int *)NULL, (int *)NULL); | |
234 | return ret; | |
235 | } | |
236 | ||
d60d9f65 SS |
237 | /* |
238 | * Expand the prompt string into the various display components, if | |
239 | * necessary. | |
240 | * | |
241 | * local_prompt = expanded last line of string in rl_display_prompt | |
242 | * (portion after the final newline) | |
243 | * local_prompt_prefix = portion before last newline of rl_display_prompt, | |
244 | * expanded via expand_prompt | |
245 | * visible_length = number of visible characters in local_prompt | |
246 | * prefix_length = number of visible characters in local_prompt_prefix | |
247 | * | |
248 | * This function is called once per call to readline(). It may also be | |
249 | * called arbitrarily to expand the primary prompt. | |
250 | * | |
251 | * The return value is the number of visible characters on the last line | |
252 | * of the (possibly multi-line) prompt. | |
253 | */ | |
254 | int | |
255 | rl_expand_prompt (prompt) | |
256 | char *prompt; | |
257 | { | |
258 | char *p, *t; | |
259 | int c; | |
260 | ||
261 | /* Clear out any saved values. */ | |
262 | if (local_prompt) | |
263 | free (local_prompt); | |
264 | if (local_prompt_prefix) | |
265 | free (local_prompt_prefix); | |
266 | local_prompt = local_prompt_prefix = (char *)0; | |
c862e87b | 267 | last_invisible = visible_length = 0; |
d60d9f65 SS |
268 | |
269 | if (prompt == 0 || *prompt == 0) | |
270 | return (0); | |
271 | ||
272 | p = strrchr (prompt, '\n'); | |
273 | if (!p) | |
274 | { | |
275 | /* The prompt is only one line. */ | |
276 | local_prompt = expand_prompt (prompt, &visible_length, &last_invisible); | |
277 | local_prompt_prefix = (char *)0; | |
278 | return (visible_length); | |
279 | } | |
280 | else | |
281 | { | |
282 | /* The prompt spans multiple lines. */ | |
283 | t = ++p; | |
284 | local_prompt = expand_prompt (p, &visible_length, &last_invisible); | |
285 | c = *t; *t = '\0'; | |
286 | /* The portion of the prompt string up to and including the | |
287 | final newline is now null-terminated. */ | |
288 | local_prompt_prefix = expand_prompt (prompt, &prefix_length, (int *)NULL); | |
289 | *t = c; | |
290 | return (prefix_length); | |
291 | } | |
292 | } | |
293 | ||
1b17e766 EZ |
294 | /* Initialize the VISIBLE_LINE and INVISIBLE_LINE arrays, and their associated |
295 | arrays of line break markers. MINSIZE is the minimum size of VISIBLE_LINE | |
296 | and INVISIBLE_LINE; if it is greater than LINE_SIZE, LINE_SIZE is | |
297 | increased. If the lines have already been allocated, this ensures that | |
298 | they can hold at least MINSIZE characters. */ | |
299 | static void | |
300 | init_line_structures (minsize) | |
301 | int minsize; | |
302 | { | |
303 | register int n; | |
304 | ||
305 | if (invisible_line == 0) /* initialize it */ | |
306 | { | |
307 | if (line_size < minsize) | |
308 | line_size = minsize; | |
309 | visible_line = xmalloc (line_size); | |
310 | invisible_line = xmalloc (line_size); | |
311 | } | |
312 | else if (line_size < minsize) /* ensure it can hold MINSIZE chars */ | |
313 | { | |
314 | line_size *= 2; | |
315 | if (line_size < minsize) | |
316 | line_size = minsize; | |
317 | visible_line = xrealloc (visible_line, line_size); | |
318 | invisible_line = xrealloc (invisible_line, line_size); | |
319 | } | |
320 | ||
321 | for (n = minsize; n < line_size; n++) | |
322 | { | |
323 | visible_line[n] = 0; | |
324 | invisible_line[n] = 1; | |
325 | } | |
326 | ||
327 | if (vis_lbreaks == 0) | |
328 | { | |
329 | /* should be enough. */ | |
330 | inv_lbsize = vis_lbsize = 256; | |
331 | inv_lbreaks = (int *)xmalloc (inv_lbsize * sizeof (int)); | |
332 | vis_lbreaks = (int *)xmalloc (vis_lbsize * sizeof (int)); | |
333 | inv_lbreaks[0] = vis_lbreaks[0] = 0; | |
334 | } | |
335 | } | |
336 | ||
d60d9f65 SS |
337 | /* Basic redisplay algorithm. */ |
338 | void | |
339 | rl_redisplay () | |
340 | { | |
341 | register int in, out, c, linenum, cursor_linenum; | |
342 | register char *line; | |
343 | int c_pos, inv_botlin, lb_botlin, lb_linenum; | |
344 | int newlines, lpos, temp; | |
345 | char *prompt_this_line; | |
346 | ||
347 | if (!readline_echoing_p) | |
348 | return; | |
349 | ||
350 | if (!rl_display_prompt) | |
351 | rl_display_prompt = ""; | |
352 | ||
353 | if (invisible_line == 0) | |
354 | { | |
1b17e766 | 355 | init_line_structures (0); |
d60d9f65 SS |
356 | rl_on_new_line (); |
357 | } | |
358 | ||
359 | /* Draw the line into the buffer. */ | |
360 | c_pos = -1; | |
361 | ||
362 | line = invisible_line; | |
363 | out = inv_botlin = 0; | |
364 | ||
365 | /* Mark the line as modified or not. We only do this for history | |
366 | lines. */ | |
367 | if (_rl_mark_modified_lines && current_history () && rl_undo_list) | |
368 | { | |
369 | line[out++] = '*'; | |
370 | line[out] = '\0'; | |
371 | } | |
372 | ||
373 | /* If someone thought that the redisplay was handled, but the currently | |
374 | visible line has a different modification state than the one about | |
375 | to become visible, then correct the caller's misconception. */ | |
376 | if (visible_line[0] != invisible_line[0]) | |
377 | rl_display_fixed = 0; | |
378 | ||
379 | /* If the prompt to be displayed is the `primary' readline prompt (the | |
380 | one passed to readline()), use the values we have already expanded. | |
381 | If not, use what's already in rl_display_prompt. WRAP_OFFSET is the | |
382 | number of non-visible characters in the prompt string. */ | |
383 | if (rl_display_prompt == rl_prompt || local_prompt) | |
384 | { | |
385 | int local_len = local_prompt ? strlen (local_prompt) : 0; | |
386 | if (local_prompt_prefix && forced_display) | |
387 | _rl_output_some_chars (local_prompt_prefix, strlen (local_prompt_prefix)); | |
388 | ||
389 | if (local_len > 0) | |
390 | { | |
c862e87b JM |
391 | temp = local_len + out + 2; |
392 | if (temp >= line_size) | |
393 | { | |
394 | line_size = (temp + 1024) - (temp % 1024); | |
395 | visible_line = xrealloc (visible_line, line_size); | |
396 | line = invisible_line = xrealloc (invisible_line, line_size); | |
397 | } | |
d60d9f65 SS |
398 | strncpy (line + out, local_prompt, local_len); |
399 | out += local_len; | |
400 | } | |
401 | line[out] = '\0'; | |
402 | wrap_offset = local_len - visible_length; | |
403 | } | |
404 | else | |
405 | { | |
406 | int pmtlen; | |
407 | prompt_this_line = strrchr (rl_display_prompt, '\n'); | |
408 | if (!prompt_this_line) | |
409 | prompt_this_line = rl_display_prompt; | |
410 | else | |
411 | { | |
412 | prompt_this_line++; | |
1b17e766 | 413 | pmtlen = prompt_this_line - rl_display_prompt; /* temp var */ |
d60d9f65 SS |
414 | if (forced_display) |
415 | { | |
1b17e766 | 416 | _rl_output_some_chars (rl_display_prompt, pmtlen); |
d60d9f65 SS |
417 | /* Make sure we are at column zero even after a newline, |
418 | regardless of the state of terminal output processing. */ | |
1b17e766 | 419 | if (pmtlen < 2 || prompt_this_line[-2] != '\r') |
d60d9f65 SS |
420 | cr (); |
421 | } | |
422 | } | |
423 | ||
424 | pmtlen = strlen (prompt_this_line); | |
c862e87b JM |
425 | temp = pmtlen + out + 2; |
426 | if (temp >= line_size) | |
427 | { | |
428 | line_size = (temp + 1024) - (temp % 1024); | |
429 | visible_line = xrealloc (visible_line, line_size); | |
430 | line = invisible_line = xrealloc (invisible_line, line_size); | |
431 | } | |
d60d9f65 SS |
432 | strncpy (line + out, prompt_this_line, pmtlen); |
433 | out += pmtlen; | |
434 | line[out] = '\0'; | |
435 | wrap_offset = 0; | |
436 | } | |
437 | ||
1b17e766 EZ |
438 | #define CHECK_INV_LBREAKS() \ |
439 | do { \ | |
440 | if (newlines >= (inv_lbsize - 2)) \ | |
441 | { \ | |
442 | inv_lbsize *= 2; \ | |
443 | inv_lbreaks = (int *)xrealloc (inv_lbreaks, inv_lbsize * sizeof (int)); \ | |
444 | } \ | |
445 | } while (0) | |
446 | ||
d60d9f65 SS |
447 | #define CHECK_LPOS() \ |
448 | do { \ | |
c862e87b JM |
449 | lpos++; \ |
450 | if (lpos >= screenwidth) \ | |
451 | { \ | |
1b17e766 EZ |
452 | if (newlines >= (inv_lbsize - 2)) \ |
453 | { \ | |
454 | inv_lbsize *= 2; \ | |
455 | inv_lbreaks = (int *)xrealloc (inv_lbreaks, inv_lbsize * sizeof (int)); \ | |
456 | } \ | |
c862e87b JM |
457 | inv_lbreaks[++newlines] = out; \ |
458 | lpos = 0; \ | |
459 | } \ | |
d60d9f65 SS |
460 | } while (0) |
461 | ||
462 | /* inv_lbreaks[i] is where line i starts in the buffer. */ | |
463 | inv_lbreaks[newlines = 0] = 0; | |
464 | lpos = out - wrap_offset; | |
465 | ||
466 | /* XXX - what if lpos is already >= screenwidth before we start drawing the | |
467 | contents of the command line? */ | |
468 | while (lpos >= screenwidth) | |
469 | { | |
d60d9f65 SS |
470 | /* XXX - possible fix from Darin Johnson <darin@acuson.com> for prompt |
471 | string with invisible characters that is longer than the screen | |
1b17e766 EZ |
472 | width. XXX - this doesn't work right if invisible characters have |
473 | to be put on the second screen line -- it adds too much (the number | |
474 | of invisible chars after the screenwidth). */ | |
d60d9f65 | 475 | temp = ((newlines + 1) * screenwidth) + ((newlines == 0) ? wrap_offset : 0); |
1b17e766 | 476 | |
d60d9f65 SS |
477 | inv_lbreaks[++newlines] = temp; |
478 | lpos -= screenwidth; | |
479 | } | |
480 | ||
481 | lb_linenum = 0; | |
482 | for (in = 0; in < rl_end; in++) | |
483 | { | |
484 | c = (unsigned char)rl_line_buffer[in]; | |
485 | ||
486 | if (out + 8 >= line_size) /* XXX - 8 for \t */ | |
487 | { | |
488 | line_size *= 2; | |
489 | visible_line = xrealloc (visible_line, line_size); | |
490 | invisible_line = xrealloc (invisible_line, line_size); | |
491 | line = invisible_line; | |
492 | } | |
493 | ||
494 | if (in == rl_point) | |
495 | { | |
496 | c_pos = out; | |
497 | lb_linenum = newlines; | |
498 | } | |
499 | ||
500 | if (META_CHAR (c)) | |
501 | { | |
502 | if (_rl_output_meta_chars == 0) | |
503 | { | |
504 | sprintf (line + out, "\\%o", c); | |
505 | ||
506 | if (lpos + 4 >= screenwidth) | |
507 | { | |
508 | temp = screenwidth - lpos; | |
1b17e766 | 509 | CHECK_INV_LBREAKS (); |
d60d9f65 SS |
510 | inv_lbreaks[++newlines] = out + temp; |
511 | lpos = 4 - temp; | |
512 | } | |
513 | else | |
514 | lpos += 4; | |
515 | ||
516 | out += 4; | |
517 | } | |
518 | else | |
519 | { | |
520 | line[out++] = c; | |
521 | CHECK_LPOS(); | |
522 | } | |
523 | } | |
524 | #if defined (DISPLAY_TABS) | |
525 | else if (c == '\t') | |
526 | { | |
527 | register int temp, newout; | |
c862e87b JM |
528 | |
529 | #if 0 | |
d60d9f65 | 530 | newout = (out | (int)7) + 1; |
c862e87b JM |
531 | #else |
532 | newout = out + 8 - lpos % 8; | |
533 | #endif | |
d60d9f65 SS |
534 | temp = newout - out; |
535 | if (lpos + temp >= screenwidth) | |
536 | { | |
537 | register int temp2; | |
538 | temp2 = screenwidth - lpos; | |
1b17e766 | 539 | CHECK_INV_LBREAKS (); |
d60d9f65 SS |
540 | inv_lbreaks[++newlines] = out + temp2; |
541 | lpos = temp - temp2; | |
542 | while (out < newout) | |
543 | line[out++] = ' '; | |
544 | } | |
545 | else | |
546 | { | |
547 | while (out < newout) | |
548 | line[out++] = ' '; | |
549 | lpos += temp; | |
550 | } | |
551 | } | |
552 | #endif | |
553 | else if (c == '\n' && _rl_horizontal_scroll_mode == 0 && term_up && *term_up) | |
c862e87b JM |
554 | { |
555 | line[out++] = '\0'; /* XXX - sentinel */ | |
1b17e766 | 556 | CHECK_INV_LBREAKS (); |
c862e87b JM |
557 | inv_lbreaks[++newlines] = out; |
558 | lpos = 0; | |
559 | } | |
d60d9f65 SS |
560 | else if (CTRL_CHAR (c) || c == RUBOUT) |
561 | { | |
562 | line[out++] = '^'; | |
563 | CHECK_LPOS(); | |
564 | line[out++] = CTRL_CHAR (c) ? UNCTRL (c) : '?'; | |
565 | CHECK_LPOS(); | |
566 | } | |
567 | else | |
568 | { | |
569 | line[out++] = c; | |
570 | CHECK_LPOS(); | |
571 | } | |
572 | } | |
573 | line[out] = '\0'; | |
574 | if (c_pos < 0) | |
575 | { | |
576 | c_pos = out; | |
577 | lb_linenum = newlines; | |
578 | } | |
579 | ||
580 | inv_botlin = lb_botlin = newlines; | |
1b17e766 | 581 | CHECK_INV_LBREAKS (); |
d60d9f65 SS |
582 | inv_lbreaks[newlines+1] = out; |
583 | cursor_linenum = lb_linenum; | |
584 | ||
585 | /* C_POS == position in buffer where cursor should be placed. */ | |
586 | ||
587 | /* PWP: now is when things get a bit hairy. The visible and invisible | |
588 | line buffers are really multiple lines, which would wrap every | |
589 | (screenwidth - 1) characters. Go through each in turn, finding | |
590 | the changed region and updating it. The line order is top to bottom. */ | |
591 | ||
592 | /* If we can move the cursor up and down, then use multiple lines, | |
593 | otherwise, let long lines display in a single terminal line, and | |
594 | horizontally scroll it. */ | |
595 | ||
596 | if (_rl_horizontal_scroll_mode == 0 && term_up && *term_up) | |
597 | { | |
598 | int nleft, pos, changed_screen_line; | |
599 | ||
600 | if (!rl_display_fixed || forced_display) | |
601 | { | |
602 | forced_display = 0; | |
603 | ||
604 | /* If we have more than a screenful of material to display, then | |
605 | only display a screenful. We should display the last screen, | |
606 | not the first. */ | |
607 | if (out >= screenchars) | |
608 | out = screenchars - 1; | |
609 | ||
610 | /* The first line is at character position 0 in the buffer. The | |
611 | second and subsequent lines start at inv_lbreaks[N], offset by | |
612 | OFFSET (which has already been calculated above). */ | |
613 | ||
614 | #define W_OFFSET(line, offset) ((line) == 0 ? offset : 0) | |
615 | #define VIS_LLEN(l) ((l) > _rl_vis_botlin ? 0 : (vis_lbreaks[l+1] - vis_lbreaks[l])) | |
616 | #define INV_LLEN(l) (inv_lbreaks[l+1] - inv_lbreaks[l]) | |
617 | #define VIS_CHARS(line) (visible_line + vis_lbreaks[line]) | |
618 | #define VIS_LINE(line) ((line) > _rl_vis_botlin) ? "" : VIS_CHARS(line) | |
619 | #define INV_LINE(line) (invisible_line + inv_lbreaks[line]) | |
620 | ||
621 | /* For each line in the buffer, do the updating display. */ | |
622 | for (linenum = 0; linenum <= inv_botlin; linenum++) | |
623 | { | |
624 | update_line (VIS_LINE(linenum), INV_LINE(linenum), linenum, | |
625 | VIS_LLEN(linenum), INV_LLEN(linenum), inv_botlin); | |
626 | ||
627 | /* If this is the line with the prompt, we might need to | |
628 | compensate for invisible characters in the new line. Do | |
629 | this only if there is not more than one new line (which | |
630 | implies that we completely overwrite the old visible line) | |
631 | and the new line is shorter than the old. Make sure we are | |
632 | at the end of the new line before clearing. */ | |
633 | if (linenum == 0 && | |
634 | inv_botlin == 0 && _rl_last_c_pos == out && | |
635 | (wrap_offset > visible_wrap_offset) && | |
636 | (_rl_last_c_pos < visible_first_line_len)) | |
637 | { | |
638 | nleft = screenwidth + wrap_offset - _rl_last_c_pos; | |
639 | if (nleft) | |
640 | _rl_clear_to_eol (nleft); | |
641 | } | |
642 | ||
643 | /* Since the new first line is now visible, save its length. */ | |
644 | if (linenum == 0) | |
645 | visible_first_line_len = (inv_botlin > 0) ? inv_lbreaks[1] : out - wrap_offset; | |
646 | } | |
647 | ||
648 | /* We may have deleted some lines. If so, clear the left over | |
649 | blank ones at the bottom out. */ | |
650 | if (_rl_vis_botlin > inv_botlin) | |
651 | { | |
652 | char *tt; | |
653 | for (; linenum <= _rl_vis_botlin; linenum++) | |
654 | { | |
655 | tt = VIS_CHARS (linenum); | |
656 | _rl_move_vert (linenum); | |
657 | _rl_move_cursor_relative (0, tt); | |
658 | _rl_clear_to_eol | |
659 | ((linenum == _rl_vis_botlin) ? strlen (tt) : screenwidth); | |
660 | } | |
661 | } | |
662 | _rl_vis_botlin = inv_botlin; | |
663 | ||
664 | /* CHANGED_SCREEN_LINE is set to 1 if we have moved to a | |
665 | different screen line during this redisplay. */ | |
666 | changed_screen_line = _rl_last_v_pos != cursor_linenum; | |
667 | if (changed_screen_line) | |
668 | { | |
669 | _rl_move_vert (cursor_linenum); | |
670 | /* If we moved up to the line with the prompt using term_up, | |
c862e87b JM |
671 | the physical cursor position on the screen stays the same, |
672 | but the buffer position needs to be adjusted to account | |
673 | for invisible characters. */ | |
d60d9f65 | 674 | if (cursor_linenum == 0 && wrap_offset) |
c862e87b | 675 | _rl_last_c_pos += wrap_offset; |
d60d9f65 SS |
676 | } |
677 | ||
678 | /* We have to reprint the prompt if it contains invisible | |
679 | characters, since it's not generally OK to just reprint | |
680 | the characters from the current cursor position. But we | |
681 | only need to reprint it if the cursor is before the last | |
682 | invisible character in the prompt string. */ | |
683 | nleft = visible_length + wrap_offset; | |
684 | if (cursor_linenum == 0 && wrap_offset > 0 && _rl_last_c_pos > 0 && | |
685 | _rl_last_c_pos <= last_invisible && local_prompt) | |
686 | { | |
771578d1 SS |
687 | #if defined (__MSDOS__) |
688 | putc ('\r', rl_outstream); | |
689 | #else | |
d60d9f65 SS |
690 | if (term_cr) |
691 | tputs (term_cr, 1, _rl_output_character_function); | |
771578d1 | 692 | #endif |
d60d9f65 SS |
693 | _rl_output_some_chars (local_prompt, nleft); |
694 | _rl_last_c_pos = nleft; | |
695 | } | |
696 | ||
697 | /* Where on that line? And where does that line start | |
698 | in the buffer? */ | |
699 | pos = inv_lbreaks[cursor_linenum]; | |
700 | /* nleft == number of characters in the line buffer between the | |
701 | start of the line and the cursor position. */ | |
702 | nleft = c_pos - pos; | |
703 | ||
704 | /* Since _rl_backspace() doesn't know about invisible characters in the | |
705 | prompt, and there's no good way to tell it, we compensate for | |
706 | those characters here and call _rl_backspace() directly. */ | |
707 | if (wrap_offset && cursor_linenum == 0 && nleft < _rl_last_c_pos) | |
708 | { | |
709 | _rl_backspace (_rl_last_c_pos - nleft); | |
710 | _rl_last_c_pos = nleft; | |
711 | } | |
712 | ||
713 | if (nleft != _rl_last_c_pos) | |
714 | _rl_move_cursor_relative (nleft, &invisible_line[pos]); | |
715 | } | |
716 | } | |
717 | else /* Do horizontal scrolling. */ | |
718 | { | |
719 | #define M_OFFSET(margin, offset) ((margin) == 0 ? offset : 0) | |
720 | int lmargin, ndisp, nleft, phys_c_pos, t; | |
721 | ||
722 | /* Always at top line. */ | |
723 | _rl_last_v_pos = 0; | |
724 | ||
725 | /* Compute where in the buffer the displayed line should start. This | |
726 | will be LMARGIN. */ | |
727 | ||
728 | /* The number of characters that will be displayed before the cursor. */ | |
729 | ndisp = c_pos - wrap_offset; | |
730 | nleft = visible_length + wrap_offset; | |
731 | /* Where the new cursor position will be on the screen. This can be | |
c862e87b | 732 | longer than SCREENWIDTH; if it is, lmargin will be adjusted. */ |
d60d9f65 SS |
733 | phys_c_pos = c_pos - (last_lmargin ? last_lmargin : wrap_offset); |
734 | t = screenwidth / 3; | |
735 | ||
736 | /* If the number of characters had already exceeded the screenwidth, | |
c862e87b | 737 | last_lmargin will be > 0. */ |
d60d9f65 SS |
738 | |
739 | /* If the number of characters to be displayed is more than the screen | |
c862e87b JM |
740 | width, compute the starting offset so that the cursor is about |
741 | two-thirds of the way across the screen. */ | |
d60d9f65 SS |
742 | if (phys_c_pos > screenwidth - 2) |
743 | { | |
744 | lmargin = c_pos - (2 * t); | |
745 | if (lmargin < 0) | |
746 | lmargin = 0; | |
747 | /* If the left margin would be in the middle of a prompt with | |
748 | invisible characters, don't display the prompt at all. */ | |
749 | if (wrap_offset && lmargin > 0 && lmargin < nleft) | |
750 | lmargin = nleft; | |
751 | } | |
752 | else if (ndisp < screenwidth - 2) /* XXX - was -1 */ | |
c862e87b | 753 | lmargin = 0; |
d60d9f65 SS |
754 | else if (phys_c_pos < 1) |
755 | { | |
756 | /* If we are moving back towards the beginning of the line and | |
757 | the last margin is no longer correct, compute a new one. */ | |
758 | lmargin = ((c_pos - 1) / t) * t; /* XXX */ | |
759 | if (wrap_offset && lmargin > 0 && lmargin < nleft) | |
760 | lmargin = nleft; | |
761 | } | |
762 | else | |
c862e87b | 763 | lmargin = last_lmargin; |
d60d9f65 SS |
764 | |
765 | /* If the first character on the screen isn't the first character | |
766 | in the display line, indicate this with a special character. */ | |
767 | if (lmargin > 0) | |
768 | line[lmargin] = '<'; | |
769 | ||
770 | /* If SCREENWIDTH characters starting at LMARGIN do not encompass | |
c862e87b JM |
771 | the whole line, indicate that with a special character at the |
772 | right edge of the screen. If LMARGIN is 0, we need to take the | |
773 | wrap offset into account. */ | |
d60d9f65 SS |
774 | t = lmargin + M_OFFSET (lmargin, wrap_offset) + screenwidth; |
775 | if (t < out) | |
c862e87b | 776 | line[t - 1] = '>'; |
d60d9f65 SS |
777 | |
778 | if (!rl_display_fixed || forced_display || lmargin != last_lmargin) | |
779 | { | |
780 | forced_display = 0; | |
781 | update_line (&visible_line[last_lmargin], | |
782 | &invisible_line[lmargin], | |
783 | 0, | |
784 | screenwidth + visible_wrap_offset, | |
785 | screenwidth + (lmargin ? 0 : wrap_offset), | |
786 | 0); | |
787 | ||
788 | /* If the visible new line is shorter than the old, but the number | |
789 | of invisible characters is greater, and we are at the end of | |
790 | the new line, we need to clear to eol. */ | |
791 | t = _rl_last_c_pos - M_OFFSET (lmargin, wrap_offset); | |
792 | if ((M_OFFSET (lmargin, wrap_offset) > visible_wrap_offset) && | |
793 | (_rl_last_c_pos == out) && | |
794 | t < visible_first_line_len) | |
795 | { | |
796 | nleft = screenwidth - t; | |
797 | _rl_clear_to_eol (nleft); | |
798 | } | |
799 | visible_first_line_len = out - lmargin - M_OFFSET (lmargin, wrap_offset); | |
800 | if (visible_first_line_len > screenwidth) | |
801 | visible_first_line_len = screenwidth; | |
802 | ||
803 | _rl_move_cursor_relative (c_pos - lmargin, &invisible_line[lmargin]); | |
804 | last_lmargin = lmargin; | |
805 | } | |
806 | } | |
807 | fflush (rl_outstream); | |
808 | ||
809 | /* Swap visible and non-visible lines. */ | |
810 | { | |
811 | char *temp = visible_line; | |
1b17e766 EZ |
812 | int *itemp = vis_lbreaks, ntemp = vis_lbsize; |
813 | ||
d60d9f65 SS |
814 | visible_line = invisible_line; |
815 | invisible_line = temp; | |
1b17e766 | 816 | |
d60d9f65 SS |
817 | vis_lbreaks = inv_lbreaks; |
818 | inv_lbreaks = itemp; | |
1b17e766 EZ |
819 | |
820 | vis_lbsize = inv_lbsize; | |
821 | inv_lbsize = ntemp; | |
822 | ||
d60d9f65 SS |
823 | rl_display_fixed = 0; |
824 | /* If we are displaying on a single line, and last_lmargin is > 0, we | |
825 | are not displaying any invisible characters, so set visible_wrap_offset | |
826 | to 0. */ | |
827 | if (_rl_horizontal_scroll_mode && last_lmargin) | |
828 | visible_wrap_offset = 0; | |
829 | else | |
830 | visible_wrap_offset = wrap_offset; | |
831 | } | |
832 | } | |
833 | ||
834 | /* PWP: update_line() is based on finding the middle difference of each | |
835 | line on the screen; vis: | |
836 | ||
837 | /old first difference | |
838 | /beginning of line | /old last same /old EOL | |
839 | v v v v | |
840 | old: eddie> Oh, my little gruntle-buggy is to me, as lurgid as | |
841 | new: eddie> Oh, my little buggy says to me, as lurgid as | |
842 | ^ ^ ^ ^ | |
843 | \beginning of line | \new last same \new end of line | |
844 | \new first difference | |
845 | ||
846 | All are character pointers for the sake of speed. Special cases for | |
c862e87b | 847 | no differences, as well as for end of line additions must be handled. |
d60d9f65 SS |
848 | |
849 | Could be made even smarter, but this works well enough */ | |
850 | static void | |
851 | update_line (old, new, current_line, omax, nmax, inv_botlin) | |
852 | register char *old, *new; | |
853 | int current_line, omax, nmax, inv_botlin; | |
854 | { | |
855 | register char *ofd, *ols, *oe, *nfd, *nls, *ne; | |
856 | int temp, lendiff, wsatend, od, nd; | |
857 | int current_invis_chars; | |
858 | ||
859 | /* If we're at the right edge of a terminal that supports xn, we're | |
860 | ready to wrap around, so do so. This fixes problems with knowing | |
861 | the exact cursor position and cut-and-paste with certain terminal | |
862 | emulators. In this calculation, TEMP is the physical screen | |
863 | position of the cursor. */ | |
864 | temp = _rl_last_c_pos - W_OFFSET(_rl_last_v_pos, visible_wrap_offset); | |
865 | if (temp == screenwidth && _rl_term_autowrap && !_rl_horizontal_scroll_mode | |
866 | && _rl_last_v_pos == current_line - 1) | |
867 | { | |
868 | if (new[0]) | |
869 | putc (new[0], rl_outstream); | |
870 | else | |
871 | putc (' ', rl_outstream); | |
872 | _rl_last_c_pos = 1; /* XXX */ | |
873 | _rl_last_v_pos++; | |
874 | if (old[0] && new[0]) | |
c862e87b | 875 | old[0] = new[0]; |
d60d9f65 SS |
876 | } |
877 | ||
878 | /* Find first difference. */ | |
879 | for (ofd = old, nfd = new; | |
880 | (ofd - old < omax) && *ofd && (*ofd == *nfd); | |
881 | ofd++, nfd++) | |
882 | ; | |
883 | ||
884 | /* Move to the end of the screen line. ND and OD are used to keep track | |
885 | of the distance between ne and new and oe and old, respectively, to | |
886 | move a subtraction out of each loop. */ | |
887 | for (od = ofd - old, oe = ofd; od < omax && *oe; oe++, od++); | |
888 | for (nd = nfd - new, ne = nfd; nd < nmax && *ne; ne++, nd++); | |
889 | ||
890 | /* If no difference, continue to next line. */ | |
891 | if (ofd == oe && nfd == ne) | |
892 | return; | |
893 | ||
894 | wsatend = 1; /* flag for trailing whitespace */ | |
895 | ols = oe - 1; /* find last same */ | |
896 | nls = ne - 1; | |
897 | while ((ols > ofd) && (nls > nfd) && (*ols == *nls)) | |
898 | { | |
899 | if (*ols != ' ') | |
900 | wsatend = 0; | |
901 | ols--; | |
902 | nls--; | |
903 | } | |
904 | ||
905 | if (wsatend) | |
906 | { | |
907 | ols = oe; | |
908 | nls = ne; | |
909 | } | |
910 | else if (*ols != *nls) | |
911 | { | |
912 | if (*ols) /* don't step past the NUL */ | |
913 | ols++; | |
914 | if (*nls) | |
915 | nls++; | |
916 | } | |
917 | ||
918 | /* count of invisible characters in the current invisible line. */ | |
919 | current_invis_chars = W_OFFSET (current_line, wrap_offset); | |
920 | if (_rl_last_v_pos != current_line) | |
921 | { | |
922 | _rl_move_vert (current_line); | |
923 | if (current_line == 0 && visible_wrap_offset) | |
924 | _rl_last_c_pos += visible_wrap_offset; | |
925 | } | |
926 | ||
927 | /* If this is the first line and there are invisible characters in the | |
928 | prompt string, and the prompt string has not changed, and the current | |
929 | cursor position is before the last invisible character in the prompt, | |
930 | and the index of the character to move to is past the end of the prompt | |
931 | string, then redraw the entire prompt string. We can only do this | |
932 | reliably if the terminal supports a `cr' capability. | |
933 | ||
934 | This is not an efficiency hack -- there is a problem with redrawing | |
935 | portions of the prompt string if they contain terminal escape | |
936 | sequences (like drawing the `unbold' sequence without a corresponding | |
937 | `bold') that manifests itself on certain terminals. */ | |
938 | ||
939 | lendiff = local_prompt ? strlen (local_prompt) : 0; | |
940 | od = ofd - old; /* index of first difference in visible line */ | |
941 | if (current_line == 0 && !_rl_horizontal_scroll_mode && | |
942 | term_cr && lendiff > visible_length && _rl_last_c_pos > 0 && | |
943 | od > lendiff && _rl_last_c_pos < last_invisible) | |
944 | { | |
771578d1 SS |
945 | #if defined (__MSDOS__) |
946 | putc ('\r', rl_outstream); | |
947 | #else | |
d60d9f65 | 948 | tputs (term_cr, 1, _rl_output_character_function); |
1b17e766 | 949 | #endif |
d60d9f65 SS |
950 | _rl_output_some_chars (local_prompt, lendiff); |
951 | _rl_last_c_pos = lendiff; | |
952 | } | |
953 | ||
954 | _rl_move_cursor_relative (od, old); | |
955 | ||
956 | /* if (len (new) > len (old)) */ | |
957 | lendiff = (nls - nfd) - (ols - ofd); | |
958 | ||
959 | /* If we are changing the number of invisible characters in a line, and | |
960 | the spot of first difference is before the end of the invisible chars, | |
961 | lendiff needs to be adjusted. */ | |
962 | if (current_line == 0 && !_rl_horizontal_scroll_mode && | |
963 | current_invis_chars != visible_wrap_offset) | |
c862e87b | 964 | lendiff += visible_wrap_offset - current_invis_chars; |
d60d9f65 SS |
965 | |
966 | /* Insert (diff (len (old), len (new)) ch. */ | |
967 | temp = ne - nfd; | |
968 | if (lendiff > 0) | |
969 | { | |
970 | /* Non-zero if we're increasing the number of lines. */ | |
971 | int gl = current_line >= _rl_vis_botlin && inv_botlin > _rl_vis_botlin; | |
972 | /* Sometimes it is cheaper to print the characters rather than | |
973 | use the terminal's capabilities. If we're growing the number | |
974 | of lines, make sure we actually cause the new line to wrap | |
975 | around on auto-wrapping terminals. */ | |
976 | if (terminal_can_insert && ((2 * temp) >= lendiff || term_IC) && (!_rl_term_autowrap || !gl)) | |
977 | { | |
978 | /* If lendiff > visible_length and _rl_last_c_pos == 0 and | |
979 | _rl_horizontal_scroll_mode == 1, inserting the characters with | |
980 | term_IC or term_ic will screw up the screen because of the | |
981 | invisible characters. We need to just draw them. */ | |
982 | if (*ols && (!_rl_horizontal_scroll_mode || _rl_last_c_pos > 0 || | |
983 | lendiff <= visible_length || !current_invis_chars)) | |
984 | { | |
985 | insert_some_chars (nfd, lendiff); | |
986 | _rl_last_c_pos += lendiff; | |
987 | } | |
988 | else if (*ols == 0) | |
989 | { | |
990 | /* At the end of a line the characters do not have to | |
991 | be "inserted". They can just be placed on the screen. */ | |
992 | /* However, this screws up the rest of this block, which | |
c862e87b | 993 | assumes you've done the insert because you can. */ |
d60d9f65 SS |
994 | _rl_output_some_chars (nfd, lendiff); |
995 | _rl_last_c_pos += lendiff; | |
996 | } | |
997 | else | |
998 | { | |
999 | /* We have horizontal scrolling and we are not inserting at | |
1000 | the end. We have invisible characters in this line. This | |
1001 | is a dumb update. */ | |
1002 | _rl_output_some_chars (nfd, temp); | |
1003 | _rl_last_c_pos += temp; | |
1004 | return; | |
1005 | } | |
1006 | /* Copy (new) chars to screen from first diff to last match. */ | |
1007 | temp = nls - nfd; | |
1008 | if ((temp - lendiff) > 0) | |
1009 | { | |
1010 | _rl_output_some_chars (nfd + lendiff, temp - lendiff); | |
1011 | _rl_last_c_pos += temp - lendiff; | |
1012 | } | |
1013 | } | |
1014 | else | |
1015 | { | |
1016 | /* cannot insert chars, write to EOL */ | |
1017 | _rl_output_some_chars (nfd, temp); | |
1018 | _rl_last_c_pos += temp; | |
1019 | } | |
1020 | } | |
1021 | else /* Delete characters from line. */ | |
1022 | { | |
1023 | /* If possible and inexpensive to use terminal deletion, then do so. */ | |
1024 | if (term_dc && (2 * temp) >= -lendiff) | |
1025 | { | |
1026 | /* If all we're doing is erasing the invisible characters in the | |
1027 | prompt string, don't bother. It screws up the assumptions | |
1028 | about what's on the screen. */ | |
1029 | if (_rl_horizontal_scroll_mode && _rl_last_c_pos == 0 && | |
1030 | -lendiff == visible_wrap_offset) | |
1031 | lendiff = 0; | |
1032 | ||
1033 | if (lendiff) | |
1034 | delete_chars (-lendiff); /* delete (diff) characters */ | |
1035 | ||
1036 | /* Copy (new) chars to screen from first diff to last match */ | |
1037 | temp = nls - nfd; | |
1038 | if (temp > 0) | |
1039 | { | |
1040 | _rl_output_some_chars (nfd, temp); | |
1041 | _rl_last_c_pos += temp; | |
1042 | } | |
1043 | } | |
1044 | /* Otherwise, print over the existing material. */ | |
1045 | else | |
1046 | { | |
1047 | if (temp > 0) | |
1048 | { | |
1049 | _rl_output_some_chars (nfd, temp); | |
1050 | _rl_last_c_pos += temp; | |
1051 | } | |
1052 | lendiff = (oe - old) - (ne - new); | |
c862e87b JM |
1053 | if (lendiff) |
1054 | { | |
1055 | if (_rl_term_autowrap && current_line < inv_botlin) | |
1056 | space_to_eol (lendiff); | |
1057 | else | |
1058 | _rl_clear_to_eol (lendiff); | |
1059 | } | |
d60d9f65 SS |
1060 | } |
1061 | } | |
1062 | } | |
1063 | ||
1064 | /* Tell the update routines that we have moved onto a new (empty) line. */ | |
1065 | int | |
1066 | rl_on_new_line () | |
1067 | { | |
1068 | if (visible_line) | |
1069 | visible_line[0] = '\0'; | |
1070 | ||
1071 | _rl_last_c_pos = _rl_last_v_pos = 0; | |
1072 | _rl_vis_botlin = last_lmargin = 0; | |
1073 | if (vis_lbreaks) | |
1074 | vis_lbreaks[0] = vis_lbreaks[1] = 0; | |
1075 | visible_wrap_offset = 0; | |
1076 | return 0; | |
1077 | } | |
1078 | ||
1b17e766 EZ |
1079 | /* Tell the update routines that we have moved onto a new line with the |
1080 | prompt already displayed. Code originally from the version of readline | |
1081 | distributed with CLISP. */ | |
1082 | int | |
1083 | rl_on_new_line_with_prompt () | |
1084 | { | |
1085 | int prompt_size, i, l, real_screenwidth, newlines; | |
1086 | char *prompt_last_line; | |
1087 | ||
1088 | /* Initialize visible_line and invisible_line to ensure that they can hold | |
1089 | the already-displayed prompt. */ | |
1090 | prompt_size = strlen (rl_prompt) + 1; | |
1091 | init_line_structures (prompt_size); | |
1092 | ||
1093 | /* Make sure the line structures hold the already-displayed prompt for | |
1094 | redisplay. */ | |
1095 | strcpy (visible_line, rl_prompt); | |
1096 | strcpy (invisible_line, rl_prompt); | |
1097 | ||
1098 | /* If the prompt contains newlines, take the last tail. */ | |
1099 | prompt_last_line = strrchr (rl_prompt, '\n'); | |
1100 | if (!prompt_last_line) | |
1101 | prompt_last_line = rl_prompt; | |
1102 | ||
1103 | l = strlen (prompt_last_line); | |
1104 | _rl_last_c_pos = l; | |
1105 | ||
1106 | /* Dissect prompt_last_line into screen lines. Note that here we have | |
1107 | to use the real screenwidth. Readline's notion of screenwidth might be | |
1108 | one less, see terminal.c. */ | |
1109 | real_screenwidth = screenwidth + (_rl_term_autowrap ? 0 : 1); | |
1110 | _rl_last_v_pos = l / real_screenwidth; | |
1111 | /* If the prompt length is a multiple of real_screenwidth, we don't know | |
1112 | whether the cursor is at the end of the last line, or already at the | |
1113 | beginning of the next line. Output a newline just to be safe. */ | |
1114 | if (l > 0 && (l % real_screenwidth) == 0) | |
1115 | _rl_output_some_chars ("\n", 1); | |
1116 | last_lmargin = 0; | |
1117 | ||
1118 | newlines = 0; i = 0; | |
1119 | while (i <= l) | |
1120 | { | |
1121 | _rl_vis_botlin = newlines; | |
1122 | vis_lbreaks[newlines++] = i; | |
1123 | i += real_screenwidth; | |
1124 | } | |
1125 | vis_lbreaks[newlines] = l; | |
1126 | visible_wrap_offset = 0; | |
1127 | ||
1128 | return 0; | |
1129 | } | |
1130 | ||
d60d9f65 SS |
1131 | /* Actually update the display, period. */ |
1132 | int | |
1133 | rl_forced_update_display () | |
1134 | { | |
1135 | if (visible_line) | |
1136 | { | |
1137 | register char *temp = visible_line; | |
1138 | ||
1139 | while (*temp) | |
c862e87b | 1140 | *temp++ = '\0'; |
d60d9f65 SS |
1141 | } |
1142 | rl_on_new_line (); | |
1143 | forced_display++; | |
1144 | (*rl_redisplay_function) (); | |
1145 | return 0; | |
1146 | } | |
1147 | ||
1148 | /* Move the cursor from _rl_last_c_pos to NEW, which are buffer indices. | |
1149 | DATA is the contents of the screen line of interest; i.e., where | |
1150 | the movement is being done. */ | |
1151 | void | |
1152 | _rl_move_cursor_relative (new, data) | |
1153 | int new; | |
1154 | char *data; | |
1155 | { | |
1156 | register int i; | |
1157 | ||
1158 | /* If we don't have to do anything, then return. */ | |
1159 | if (_rl_last_c_pos == new) return; | |
1160 | ||
1161 | /* It may be faster to output a CR, and then move forwards instead | |
1162 | of moving backwards. */ | |
1163 | /* i == current physical cursor position. */ | |
1164 | i = _rl_last_c_pos - W_OFFSET(_rl_last_v_pos, visible_wrap_offset); | |
1165 | if (new == 0 || CR_FASTER (new, _rl_last_c_pos) || | |
1166 | (_rl_term_autowrap && i == screenwidth)) | |
1167 | { | |
1168 | #if defined (__MSDOS__) | |
1169 | putc ('\r', rl_outstream); | |
1170 | #else | |
1171 | tputs (term_cr, 1, _rl_output_character_function); | |
1172 | #endif /* !__MSDOS__ */ | |
1173 | _rl_last_c_pos = 0; | |
1174 | } | |
1175 | ||
1176 | if (_rl_last_c_pos < new) | |
1177 | { | |
1178 | /* Move the cursor forward. We do it by printing the command | |
1179 | to move the cursor forward if there is one, else print that | |
1180 | portion of the output buffer again. Which is cheaper? */ | |
1181 | ||
1182 | /* The above comment is left here for posterity. It is faster | |
1183 | to print one character (non-control) than to print a control | |
1184 | sequence telling the terminal to move forward one character. | |
1185 | That kind of control is for people who don't know what the | |
1186 | data is underneath the cursor. */ | |
1187 | #if defined (HACK_TERMCAP_MOTION) | |
d60d9f65 SS |
1188 | if (term_forward_char) |
1189 | for (i = _rl_last_c_pos; i < new; i++) | |
1190 | tputs (term_forward_char, 1, _rl_output_character_function); | |
1191 | else | |
1192 | for (i = _rl_last_c_pos; i < new; i++) | |
1193 | putc (data[i], rl_outstream); | |
1194 | #else | |
1195 | for (i = _rl_last_c_pos; i < new; i++) | |
1196 | putc (data[i], rl_outstream); | |
1197 | #endif /* HACK_TERMCAP_MOTION */ | |
1198 | } | |
c862e87b | 1199 | else if (_rl_last_c_pos > new) |
d60d9f65 SS |
1200 | _rl_backspace (_rl_last_c_pos - new); |
1201 | _rl_last_c_pos = new; | |
1202 | } | |
1203 | ||
1204 | /* PWP: move the cursor up or down. */ | |
1205 | void | |
1206 | _rl_move_vert (to) | |
1207 | int to; | |
1208 | { | |
1209 | register int delta, i; | |
1210 | ||
1211 | if (_rl_last_v_pos == to || to > screenheight) | |
1212 | return; | |
1213 | ||
d60d9f65 SS |
1214 | if ((delta = to - _rl_last_v_pos) > 0) |
1215 | { | |
1216 | for (i = 0; i < delta; i++) | |
1217 | putc ('\n', rl_outstream); | |
1b17e766 EZ |
1218 | #if defined (__MSDOS__) |
1219 | putc ('\r', rl_outstream); | |
1220 | #else | |
d60d9f65 | 1221 | tputs (term_cr, 1, _rl_output_character_function); |
1b17e766 | 1222 | #endif |
d60d9f65 SS |
1223 | _rl_last_c_pos = 0; |
1224 | } | |
1225 | else | |
1226 | { /* delta < 0 */ | |
1227 | if (term_up && *term_up) | |
1228 | for (i = 0; i < -delta; i++) | |
1229 | tputs (term_up, 1, _rl_output_character_function); | |
1230 | } | |
1b17e766 | 1231 | |
d60d9f65 SS |
1232 | _rl_last_v_pos = to; /* Now TO is here */ |
1233 | } | |
1234 | ||
1235 | /* Physically print C on rl_outstream. This is for functions which know | |
1236 | how to optimize the display. Return the number of characters output. */ | |
1237 | int | |
1238 | rl_show_char (c) | |
1239 | int c; | |
1240 | { | |
1241 | int n = 1; | |
1242 | if (META_CHAR (c) && (_rl_output_meta_chars == 0)) | |
1243 | { | |
1244 | fprintf (rl_outstream, "M-"); | |
1245 | n += 2; | |
1246 | c = UNMETA (c); | |
1247 | } | |
1248 | ||
1249 | #if defined (DISPLAY_TABS) | |
1250 | if ((CTRL_CHAR (c) && c != '\t') || c == RUBOUT) | |
1251 | #else | |
1252 | if (CTRL_CHAR (c) || c == RUBOUT) | |
1253 | #endif /* !DISPLAY_TABS */ | |
1254 | { | |
1255 | fprintf (rl_outstream, "C-"); | |
1256 | n += 2; | |
1257 | c = CTRL_CHAR (c) ? UNCTRL (c) : '?'; | |
1258 | } | |
1259 | ||
1260 | putc (c, rl_outstream); | |
1261 | fflush (rl_outstream); | |
1262 | return n; | |
1263 | } | |
1264 | ||
1265 | int | |
1266 | rl_character_len (c, pos) | |
1267 | register int c, pos; | |
1268 | { | |
1269 | unsigned char uc; | |
1270 | ||
1271 | uc = (unsigned char)c; | |
1272 | ||
1273 | if (META_CHAR (uc)) | |
1274 | return ((_rl_output_meta_chars == 0) ? 4 : 1); | |
1275 | ||
1276 | if (uc == '\t') | |
1277 | { | |
1278 | #if defined (DISPLAY_TABS) | |
1279 | return (((pos | 7) + 1) - pos); | |
1280 | #else | |
1281 | return (2); | |
1282 | #endif /* !DISPLAY_TABS */ | |
1283 | } | |
1284 | ||
1285 | if (CTRL_CHAR (c) || c == RUBOUT) | |
1286 | return (2); | |
1287 | ||
1288 | return ((isprint (uc)) ? 1 : 2); | |
1289 | } | |
1290 | ||
1291 | /* How to print things in the "echo-area". The prompt is treated as a | |
1292 | mini-modeline. */ | |
1293 | ||
1294 | #if defined (USE_VARARGS) | |
1295 | int | |
1296 | #if defined (PREFER_STDARG) | |
1297 | rl_message (const char *format, ...) | |
1298 | #else | |
1299 | rl_message (va_alist) | |
1300 | va_dcl | |
1301 | #endif | |
1302 | { | |
1303 | va_list args; | |
1304 | #if defined (PREFER_VARARGS) | |
1305 | char *format; | |
1306 | #endif | |
1307 | ||
1308 | #if defined (PREFER_STDARG) | |
1309 | va_start (args, format); | |
1310 | #else | |
1311 | va_start (args); | |
1312 | format = va_arg (args, char *); | |
1313 | #endif | |
1314 | ||
1315 | vsprintf (msg_buf, format, args); | |
1316 | va_end (args); | |
1317 | ||
1318 | rl_display_prompt = msg_buf; | |
1319 | (*rl_redisplay_function) (); | |
1320 | return 0; | |
1321 | } | |
1322 | #else /* !USE_VARARGS */ | |
1323 | int | |
1324 | rl_message (format, arg1, arg2) | |
1325 | char *format; | |
1326 | { | |
1327 | sprintf (msg_buf, format, arg1, arg2); | |
1328 | rl_display_prompt = msg_buf; | |
1329 | (*rl_redisplay_function) (); | |
1330 | return 0; | |
1331 | } | |
1332 | #endif /* !USE_VARARGS */ | |
1333 | ||
1334 | /* How to clear things from the "echo-area". */ | |
1335 | int | |
1336 | rl_clear_message () | |
1337 | { | |
1338 | rl_display_prompt = rl_prompt; | |
1339 | (*rl_redisplay_function) (); | |
1340 | return 0; | |
1341 | } | |
1342 | ||
1343 | int | |
1344 | rl_reset_line_state () | |
1345 | { | |
1346 | rl_on_new_line (); | |
1347 | ||
1348 | rl_display_prompt = rl_prompt ? rl_prompt : ""; | |
1349 | forced_display = 1; | |
1350 | return 0; | |
1351 | } | |
1352 | ||
1353 | static char *saved_local_prompt; | |
1354 | static char *saved_local_prefix; | |
1355 | static int saved_last_invisible; | |
1356 | static int saved_visible_length; | |
1357 | ||
1358 | void | |
c862e87b | 1359 | rl_save_prompt () |
d60d9f65 SS |
1360 | { |
1361 | saved_local_prompt = local_prompt; | |
1362 | saved_local_prefix = local_prompt_prefix; | |
1363 | saved_last_invisible = last_invisible; | |
1364 | saved_visible_length = visible_length; | |
1365 | ||
1366 | local_prompt = local_prompt_prefix = (char *)0; | |
1367 | last_invisible = visible_length = 0; | |
1368 | } | |
1369 | ||
1370 | void | |
c862e87b | 1371 | rl_restore_prompt () |
d60d9f65 SS |
1372 | { |
1373 | if (local_prompt) | |
1374 | free (local_prompt); | |
1375 | if (local_prompt_prefix) | |
1376 | free (local_prompt_prefix); | |
1377 | ||
1378 | local_prompt = saved_local_prompt; | |
1379 | local_prompt_prefix = saved_local_prefix; | |
1380 | last_invisible = saved_last_invisible; | |
1381 | visible_length = saved_visible_length; | |
1382 | } | |
1383 | ||
1384 | char * | |
1385 | _rl_make_prompt_for_search (pchar) | |
1386 | int pchar; | |
1387 | { | |
1388 | int len; | |
1389 | char *pmt; | |
1390 | ||
c862e87b | 1391 | rl_save_prompt (); |
d60d9f65 SS |
1392 | |
1393 | if (saved_local_prompt == 0) | |
1394 | { | |
1395 | len = (rl_prompt && *rl_prompt) ? strlen (rl_prompt) : 0; | |
1396 | pmt = xmalloc (len + 2); | |
1397 | if (len) | |
c862e87b | 1398 | strcpy (pmt, rl_prompt); |
d60d9f65 SS |
1399 | pmt[len] = pchar; |
1400 | pmt[len+1] = '\0'; | |
1401 | } | |
1402 | else | |
1403 | { | |
1404 | len = *saved_local_prompt ? strlen (saved_local_prompt) : 0; | |
1405 | pmt = xmalloc (len + 2); | |
1406 | if (len) | |
c862e87b | 1407 | strcpy (pmt, saved_local_prompt); |
d60d9f65 SS |
1408 | pmt[len] = pchar; |
1409 | pmt[len+1] = '\0'; | |
1410 | local_prompt = savestring (pmt); | |
1411 | last_invisible = saved_last_invisible; | |
1412 | visible_length = saved_visible_length + 1; | |
1413 | } | |
1414 | return pmt; | |
1415 | } | |
1416 | ||
1417 | /* Quick redisplay hack when erasing characters at the end of the line. */ | |
1418 | void | |
1419 | _rl_erase_at_end_of_line (l) | |
1420 | int l; | |
1421 | { | |
1422 | register int i; | |
1423 | ||
1424 | _rl_backspace (l); | |
1425 | for (i = 0; i < l; i++) | |
1426 | putc (' ', rl_outstream); | |
1427 | _rl_backspace (l); | |
1428 | for (i = 0; i < l; i++) | |
1429 | visible_line[--_rl_last_c_pos] = '\0'; | |
1430 | rl_display_fixed++; | |
1431 | } | |
1432 | ||
1433 | /* Clear to the end of the line. COUNT is the minimum | |
1434 | number of character spaces to clear, */ | |
1435 | void | |
1436 | _rl_clear_to_eol (count) | |
1437 | int count; | |
1438 | { | |
d60d9f65 SS |
1439 | if (term_clreol) |
1440 | tputs (term_clreol, 1, _rl_output_character_function); | |
1441 | else if (count) | |
d60d9f65 SS |
1442 | space_to_eol (count); |
1443 | } | |
1444 | ||
1445 | /* Clear to the end of the line using spaces. COUNT is the minimum | |
1446 | number of character spaces to clear, */ | |
1447 | static void | |
1448 | space_to_eol (count) | |
1449 | int count; | |
1450 | { | |
1451 | register int i; | |
1452 | ||
1453 | for (i = 0; i < count; i++) | |
1454 | putc (' ', rl_outstream); | |
1455 | ||
1456 | _rl_last_c_pos += count; | |
1457 | } | |
1458 | ||
1459 | void | |
1460 | _rl_clear_screen () | |
1461 | { | |
d60d9f65 SS |
1462 | if (term_clrpag) |
1463 | tputs (term_clrpag, 1, _rl_output_character_function); | |
1464 | else | |
d60d9f65 SS |
1465 | crlf (); |
1466 | } | |
1467 | ||
1468 | /* Insert COUNT characters from STRING to the output stream. */ | |
1469 | static void | |
1470 | insert_some_chars (string, count) | |
1471 | char *string; | |
1472 | int count; | |
1473 | { | |
d60d9f65 SS |
1474 | /* If IC is defined, then we do not have to "enter" insert mode. */ |
1475 | if (term_IC) | |
1476 | { | |
1477 | char *buffer; | |
1478 | buffer = tgoto (term_IC, 0, count); | |
1479 | tputs (buffer, 1, _rl_output_character_function); | |
1480 | _rl_output_some_chars (string, count); | |
1481 | } | |
1482 | else | |
1483 | { | |
1484 | register int i; | |
1485 | ||
1486 | /* If we have to turn on insert-mode, then do so. */ | |
1487 | if (term_im && *term_im) | |
1488 | tputs (term_im, 1, _rl_output_character_function); | |
1489 | ||
1490 | /* If there is a special command for inserting characters, then | |
1491 | use that first to open up the space. */ | |
1492 | if (term_ic && *term_ic) | |
1493 | { | |
1494 | for (i = count; i--; ) | |
1495 | tputs (term_ic, 1, _rl_output_character_function); | |
1496 | } | |
1497 | ||
1498 | /* Print the text. */ | |
1499 | _rl_output_some_chars (string, count); | |
1500 | ||
1501 | /* If there is a string to turn off insert mode, we had best use | |
1502 | it now. */ | |
1503 | if (term_ei && *term_ei) | |
1504 | tputs (term_ei, 1, _rl_output_character_function); | |
1505 | } | |
d60d9f65 SS |
1506 | } |
1507 | ||
1508 | /* Delete COUNT characters from the display line. */ | |
1509 | static void | |
1510 | delete_chars (count) | |
1511 | int count; | |
1512 | { | |
d60d9f65 SS |
1513 | if (count > screenwidth) /* XXX */ |
1514 | return; | |
1515 | ||
1516 | if (term_DC && *term_DC) | |
1517 | { | |
1518 | char *buffer; | |
1519 | buffer = tgoto (term_DC, count, count); | |
1520 | tputs (buffer, count, _rl_output_character_function); | |
1521 | } | |
1522 | else | |
1523 | { | |
1524 | if (term_dc && *term_dc) | |
1525 | while (count--) | |
1526 | tputs (term_dc, 1, _rl_output_character_function); | |
1527 | } | |
d60d9f65 SS |
1528 | } |
1529 | ||
1530 | void | |
1531 | _rl_update_final () | |
1532 | { | |
1533 | int full_lines; | |
1534 | ||
1535 | full_lines = 0; | |
1536 | /* If the cursor is the only thing on an otherwise-blank last line, | |
1537 | compensate so we don't print an extra CRLF. */ | |
1538 | if (_rl_vis_botlin && _rl_last_c_pos == 0 && | |
1539 | visible_line[vis_lbreaks[_rl_vis_botlin]] == 0) | |
1540 | { | |
1541 | _rl_vis_botlin--; | |
1542 | full_lines = 1; | |
1543 | } | |
1544 | _rl_move_vert (_rl_vis_botlin); | |
1545 | /* If we've wrapped lines, remove the final xterm line-wrap flag. */ | |
1546 | if (full_lines && _rl_term_autowrap && (VIS_LLEN(_rl_vis_botlin) == screenwidth)) | |
1547 | { | |
1548 | char *last_line; | |
1b17e766 | 1549 | #if 0 |
d60d9f65 | 1550 | last_line = &visible_line[inv_lbreaks[_rl_vis_botlin]]; |
1b17e766 EZ |
1551 | #else |
1552 | last_line = &visible_line[vis_lbreaks[_rl_vis_botlin]]; | |
1553 | #endif | |
d60d9f65 SS |
1554 | _rl_move_cursor_relative (screenwidth - 1, last_line); |
1555 | _rl_clear_to_eol (0); | |
1556 | putc (last_line[screenwidth - 1], rl_outstream); | |
1557 | } | |
1558 | _rl_vis_botlin = 0; | |
1559 | crlf (); | |
1560 | fflush (rl_outstream); | |
1561 | rl_display_fixed++; | |
1562 | } | |
1563 | ||
1564 | /* Move to the start of the current line. */ | |
1565 | static void | |
1566 | cr () | |
1567 | { | |
1568 | if (term_cr) | |
1569 | { | |
771578d1 SS |
1570 | #if defined (__MSDOS__) |
1571 | putc ('\r', rl_outstream); | |
1572 | #else | |
d60d9f65 | 1573 | tputs (term_cr, 1, _rl_output_character_function); |
1b17e766 | 1574 | #endif |
d60d9f65 SS |
1575 | _rl_last_c_pos = 0; |
1576 | } | |
1577 | } | |
1578 | ||
1b17e766 EZ |
1579 | /* Redraw the last line of a multi-line prompt that may possibly contain |
1580 | terminal escape sequences. Called with the cursor at column 0 of the | |
1581 | line to draw the prompt on. */ | |
1582 | static void | |
1583 | redraw_prompt (t) | |
1584 | char *t; | |
1585 | { | |
1586 | char *oldp, *oldl, *oldlprefix; | |
1587 | int oldlen, oldlast, oldplen; | |
1588 | ||
1589 | /* Geez, I should make this a struct. */ | |
1590 | oldp = rl_display_prompt; | |
1591 | oldl = local_prompt; | |
1592 | oldlprefix = local_prompt_prefix; | |
1593 | oldlen = visible_length; | |
1594 | oldplen = prefix_length; | |
1595 | oldlast = last_invisible; | |
1596 | ||
1597 | rl_display_prompt = t; | |
1598 | local_prompt = expand_prompt (t, &visible_length, &last_invisible); | |
1599 | local_prompt_prefix = (char *)NULL; | |
1600 | rl_forced_update_display (); | |
1601 | ||
1602 | rl_display_prompt = oldp; | |
1603 | local_prompt = oldl; | |
1604 | local_prompt_prefix = oldlprefix; | |
1605 | visible_length = oldlen; | |
1606 | prefix_length = oldplen; | |
1607 | last_invisible = oldlast; | |
1608 | } | |
1609 | ||
d60d9f65 SS |
1610 | /* Redisplay the current line after a SIGWINCH is received. */ |
1611 | void | |
1612 | _rl_redisplay_after_sigwinch () | |
1613 | { | |
1b17e766 | 1614 | char *t; |
d60d9f65 SS |
1615 | |
1616 | /* Clear the current line and put the cursor at column 0. Make sure | |
1617 | the right thing happens if we have wrapped to a new screen line. */ | |
1618 | if (term_cr) | |
1619 | { | |
771578d1 SS |
1620 | #if defined (__MSDOS__) |
1621 | putc ('\r', rl_outstream); | |
1622 | #else | |
d60d9f65 | 1623 | tputs (term_cr, 1, _rl_output_character_function); |
1b17e766 | 1624 | #endif |
d60d9f65 | 1625 | _rl_last_c_pos = 0; |
771578d1 SS |
1626 | #if defined (__MSDOS__) |
1627 | space_to_eol (screenwidth); | |
1628 | putc ('\r', rl_outstream); | |
1629 | #else | |
d60d9f65 SS |
1630 | if (term_clreol) |
1631 | tputs (term_clreol, 1, _rl_output_character_function); | |
1632 | else | |
1633 | { | |
1634 | space_to_eol (screenwidth); | |
1635 | tputs (term_cr, 1, _rl_output_character_function); | |
1636 | } | |
771578d1 | 1637 | #endif |
d60d9f65 SS |
1638 | if (_rl_last_v_pos > 0) |
1639 | _rl_move_vert (0); | |
1640 | } | |
1641 | else | |
1642 | crlf (); | |
1643 | ||
1644 | /* Redraw only the last line of a multi-line prompt. */ | |
1645 | t = strrchr (rl_display_prompt, '\n'); | |
1646 | if (t) | |
1b17e766 | 1647 | redraw_prompt (++t); |
d60d9f65 SS |
1648 | else |
1649 | rl_forced_update_display (); | |
1650 | } | |
1651 | ||
1652 | void | |
1653 | _rl_clean_up_for_exit () | |
1654 | { | |
1655 | if (readline_echoing_p) | |
1656 | { | |
1657 | _rl_move_vert (_rl_vis_botlin); | |
1658 | _rl_vis_botlin = 0; | |
1659 | fflush (rl_outstream); | |
c862e87b | 1660 | rl_restart_output (1, 0); |
d60d9f65 SS |
1661 | } |
1662 | } | |
c862e87b JM |
1663 | |
1664 | void | |
1665 | _rl_erase_entire_line () | |
1666 | { | |
1667 | cr (); | |
1668 | _rl_clear_to_eol (0); | |
1669 | cr (); | |
1670 | fflush (rl_outstream); | |
1671 | } | |
1b17e766 EZ |
1672 | |
1673 | /* return the `current display line' of the cursor -- the number of lines to | |
1674 | move up to get to the first screen line of the current readline line. */ | |
1675 | int | |
1676 | _rl_current_display_line () | |
1677 | { | |
1678 | int ret, nleft; | |
1679 | ||
1680 | /* Find out whether or not there might be invisible characters in the | |
1681 | editing buffer. */ | |
1682 | if (rl_display_prompt == rl_prompt) | |
1683 | nleft = _rl_last_c_pos - screenwidth - rl_visible_prompt_length; | |
1684 | else | |
1685 | nleft = _rl_last_c_pos - screenwidth; | |
1686 | ||
1687 | if (nleft > 0) | |
1688 | ret = 1 + nleft / screenwidth; | |
1689 | else | |
1690 | ret = 0; | |
1691 | ||
1692 | return ret; | |
1693 | } |