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Merged from the latest developing branch.
[MacVim/KaoriYa.git] / src / search.c
blob8a00757fbe264e555d2cf93216f9312315caaf4c
1 /* vi:set ts=8 sts=4 sw=4:
2 *
3 * VIM - Vi IMproved by Bram Moolenaar
4 *
5 * Do ":help uganda" in Vim to read copying and usage conditions.
6 * Do ":help credits" in Vim to see a list of people who contributed.
7 * See README.txt for an overview of the Vim source code.
8 */
9 /*
10 * search.c: code for normal mode searching commands
11 */
12
13 #include "vim.h"
14
15 static void save_re_pat __ARGS((int idx, char_u *pat, int magic));
16 #ifdef FEAT_EVAL
17 static void set_vv_searchforward __ARGS((void));
18 static int first_submatch __ARGS((regmmatch_T *rp));
19 #endif
20 static int check_prevcol __ARGS((char_u *linep, int col, int ch, int *prevcol));
21 static int inmacro __ARGS((char_u *, char_u *));
22 static int check_linecomment __ARGS((char_u *line));
23 static int cls __ARGS((void));
24 static int skip_chars __ARGS((int, int));
25 #ifdef FEAT_TEXTOBJ
26 static void back_in_line __ARGS((void));
27 static void find_first_blank __ARGS((pos_T *));
28 static void findsent_forward __ARGS((long count, int at_start_sent));
29 #endif
30 #ifdef FEAT_FIND_ID
31 static void show_pat_in_path __ARGS((char_u *, int,
32 int, int, FILE *, linenr_T *, long));
33 #endif
34 #ifdef FEAT_VIMINFO
35 static void wvsp_one __ARGS((FILE *fp, int idx, char *s, int sc));
36 #endif
37
38 /*
39 * This file contains various searching-related routines. These fall into
40 * three groups:
41 * 1. string searches (for /, ?, n, and N)
42 * 2. character searches within a single line (for f, F, t, T, etc)
43 * 3. "other" kinds of searches like the '%' command, and 'word' searches.
44 */
45
46 /*
47 * String searches
48 *
49 * The string search functions are divided into two levels:
50 * lowest: searchit(); uses an pos_T for starting position and found match.
51 * Highest: do_search(); uses curwin->w_cursor; calls searchit().
52 *
53 * The last search pattern is remembered for repeating the same search.
54 * This pattern is shared between the :g, :s, ? and / commands.
55 * This is in search_regcomp().
56 *
57 * The actual string matching is done using a heavily modified version of
58 * Henry Spencer's regular expression library. See regexp.c.
59 */
60
61 /* The offset for a search command is store in a soff struct */
62 /* Note: only spats[0].off is really used */
63 struct soffset
64 {
65 int dir; /* search direction, '/' or '?' */
66 int line; /* search has line offset */
67 int end; /* search set cursor at end */
68 long off; /* line or char offset */
69 };
70
71 /* A search pattern and its attributes are stored in a spat struct */
72 struct spat
73 {
74 char_u *pat; /* the pattern (in allocated memory) or NULL */
75 int magic; /* magicness of the pattern */
76 int no_scs; /* no smarcase for this pattern */
77 struct soffset off;
78 };
79
80 /*
81 * Two search patterns are remembered: One for the :substitute command and
82 * one for other searches. last_idx points to the one that was used the last
83 * time.
84 */
85 static struct spat spats[2] =
86 {
87 {NULL, TRUE, FALSE, {'/', 0, 0, 0L}}, /* last used search pat */
88 {NULL, TRUE, FALSE, {'/', 0, 0, 0L}} /* last used substitute pat */
89 };
90
91 static int last_idx = 0; /* index in spats[] for RE_LAST */
92
93 #if defined(FEAT_AUTOCMD) || defined(FEAT_EVAL) || defined(PROTO)
94 /* copy of spats[], for keeping the search patterns while executing autocmds */
95 static struct spat saved_spats[2];
96 static int saved_last_idx = 0;
97 # ifdef FEAT_SEARCH_EXTRA
98 static int saved_no_hlsearch = 0;
99 # endif
100 #endif
101
102 static char_u *mr_pattern = NULL; /* pattern used by search_regcomp() */
103 #ifdef FEAT_RIGHTLEFT
104 static int mr_pattern_alloced = FALSE; /* mr_pattern was allocated */
105 #endif
106
107 #ifdef FEAT_FIND_ID
108 /*
109 * Type used by find_pattern_in_path() to remember which included files have
110 * been searched already.
111 */
112 typedef struct SearchedFile
113 {
114 FILE *fp; /* File pointer */
115 char_u *name; /* Full name of file */
116 linenr_T lnum; /* Line we were up to in file */
117 int matched; /* Found a match in this file */
118 } SearchedFile;
119 #endif
120
121 /*
122 * translate search pattern for vim_regcomp()
123 *
124 * pat_save == RE_SEARCH: save pat in spats[RE_SEARCH].pat (normal search cmd)
125 * pat_save == RE_SUBST: save pat in spats[RE_SUBST].pat (:substitute command)
126 * pat_save == RE_BOTH: save pat in both patterns (:global command)
127 * pat_use == RE_SEARCH: use previous search pattern if "pat" is NULL
128 * pat_use == RE_SUBST: use previous substitute pattern if "pat" is NULL
129 * pat_use == RE_LAST: use last used pattern if "pat" is NULL
130 * options & SEARCH_HIS: put search string in history
131 * options & SEARCH_KEEP: keep previous search pattern
132 *
133 * returns FAIL if failed, OK otherwise.
134 */
135 int
136 search_regcomp(pat, pat_save, pat_use, options, regmatch)
137 char_u *pat;
138 int pat_save;
139 int pat_use;
140 int options;
141 regmmatch_T *regmatch; /* return: pattern and ignore-case flag */
142 {
143 int magic;
144 int i;
145
146 rc_did_emsg = FALSE;
147 magic = p_magic;
148
149 /*
150 * If no pattern given, use a previously defined pattern.
151 */
152 if (pat == NULL || *pat == NUL)
153 {
154 if (pat_use == RE_LAST)
155 i = last_idx;
156 else
157 i = pat_use;
158 if (spats[i].pat == NULL) /* pattern was never defined */
159 {
160 if (pat_use == RE_SUBST)
161 EMSG(_(e_nopresub));
162 else
163 EMSG(_(e_noprevre));
164 rc_did_emsg = TRUE;
165 return FAIL;
166 }
167 pat = spats[i].pat;
168 magic = spats[i].magic;
169 no_smartcase = spats[i].no_scs;
170 }
171 #ifdef FEAT_CMDHIST
172 else if (options & SEARCH_HIS) /* put new pattern in history */
173 add_to_history(HIST_SEARCH, pat, TRUE, NUL);
174 #endif
175
176 #ifdef FEAT_RIGHTLEFT
177 if (mr_pattern_alloced)
178 {
179 vim_free(mr_pattern);
180 mr_pattern_alloced = FALSE;
181 }
182
183 if (curwin->w_p_rl && *curwin->w_p_rlc == 's')
184 {
185 char_u *rev_pattern;
186
187 rev_pattern = reverse_text(pat);
188 if (rev_pattern == NULL)
189 mr_pattern = pat; /* out of memory, keep normal pattern. */
190 else
191 {
192 mr_pattern = rev_pattern;
193 mr_pattern_alloced = TRUE;
194 }
195 }
196 else
197 #endif
198 mr_pattern = pat;
199
200 /*
201 * Save the currently used pattern in the appropriate place,
202 * unless the pattern should not be remembered.
203 */
204 if (!(options & SEARCH_KEEP))
205 {
206 /* search or global command */
207 if (pat_save == RE_SEARCH || pat_save == RE_BOTH)
208 save_re_pat(RE_SEARCH, pat, magic);
209 /* substitute or global command */
210 if (pat_save == RE_SUBST || pat_save == RE_BOTH)
211 save_re_pat(RE_SUBST, pat, magic);
212 }
213
214 regmatch->rmm_ic = ignorecase(pat);
215 regmatch->rmm_maxcol = 0;
216 regmatch->regprog = vim_regcomp(pat, magic ? RE_MAGIC : 0);
217 if (regmatch->regprog == NULL)
218 return FAIL;
219 return OK;
220 }
221
222 /*
223 * Get search pattern used by search_regcomp().
224 */
225 char_u *
226 get_search_pat()
227 {
228 return mr_pattern;
229 }
230
231 #if defined(FEAT_RIGHTLEFT) || defined(PROTO)
232 /*
233 * Reverse text into allocated memory.
234 * Returns the allocated string, NULL when out of memory.
235 */
236 char_u *
237 reverse_text(s)
238 char_u *s;
239 {
240 unsigned len;
241 unsigned s_i, rev_i;
242 char_u *rev;
243
244 /*
245 * Reverse the pattern.
246 */
247 len = (unsigned)STRLEN(s);
248 rev = alloc(len + 1);
249 if (rev != NULL)
250 {
251 rev_i = len;
252 for (s_i = 0; s_i < len; ++s_i)
253 {
254 # ifdef FEAT_MBYTE
255 if (has_mbyte)
256 {
257 int mb_len;
258
259 mb_len = (*mb_ptr2len)(s + s_i);
260 rev_i -= mb_len;
261 mch_memmove(rev + rev_i, s + s_i, mb_len);
262 s_i += mb_len - 1;
263 }
264 else
265 # endif
266 rev[--rev_i] = s[s_i];
267
268 }
269 rev[len] = NUL;
270 }
271 return rev;
272 }
273 #endif
274
275 static void
276 save_re_pat(idx, pat, magic)
277 int idx;
278 char_u *pat;
279 int magic;
280 {
281 if (spats[idx].pat != pat)
282 {
283 vim_free(spats[idx].pat);
284 spats[idx].pat = vim_strsave(pat);
285 spats[idx].magic = magic;
286 spats[idx].no_scs = no_smartcase;
287 last_idx = idx;
288 #ifdef FEAT_SEARCH_EXTRA
289 /* If 'hlsearch' set and search pat changed: need redraw. */
290 if (p_hls)
291 redraw_all_later(SOME_VALID);
292 no_hlsearch = FALSE;
293 #endif
294 }
295 }
296
297 #if defined(FEAT_AUTOCMD) || defined(FEAT_EVAL) || defined(PROTO)
298 /*
299 * Save the search patterns, so they can be restored later.
300 * Used before/after executing autocommands and user functions.
301 */
302 static int save_level = 0;
303
304 void
305 save_search_patterns()
306 {
307 if (save_level++ == 0)
308 {
309 saved_spats[0] = spats[0];
310 if (spats[0].pat != NULL)
311 saved_spats[0].pat = vim_strsave(spats[0].pat);
312 saved_spats[1] = spats[1];
313 if (spats[1].pat != NULL)
314 saved_spats[1].pat = vim_strsave(spats[1].pat);
315 saved_last_idx = last_idx;
316 # ifdef FEAT_SEARCH_EXTRA
317 saved_no_hlsearch = no_hlsearch;
318 # endif
319 }
320 }
321
322 void
323 restore_search_patterns()
324 {
325 if (--save_level == 0)
326 {
327 vim_free(spats[0].pat);
328 spats[0] = saved_spats[0];
329 #if defined(FEAT_EVAL)
330 set_vv_searchforward();
331 #endif
332 vim_free(spats[1].pat);
333 spats[1] = saved_spats[1];
334 last_idx = saved_last_idx;
335 # ifdef FEAT_SEARCH_EXTRA
336 no_hlsearch = saved_no_hlsearch;
337 # endif
338 }
339 }
340 #endif
341
342 #if defined(EXITFREE) || defined(PROTO)
343 void
344 free_search_patterns()
345 {
346 vim_free(spats[0].pat);
347 vim_free(spats[1].pat);
348 }
349 #endif
350
351 /*
352 * Return TRUE when case should be ignored for search pattern "pat".
353 * Uses the 'ignorecase' and 'smartcase' options.
354 */
355 int
356 ignorecase(pat)
357 char_u *pat;
358 {
359 char_u *p;
360 int ic;
361
362 ic = p_ic;
363 if (ic && !no_smartcase && p_scs
364 #ifdef FEAT_INS_EXPAND
365 && !(ctrl_x_mode && curbuf->b_p_inf)
366 #endif
367 )
368 {
369 /* don't ignore case if pattern has uppercase */
370 for (p = pat; *p; )
371 {
372 #ifdef FEAT_MBYTE
373 int l;
374
375 if (has_mbyte && (l = (*mb_ptr2len)(p)) > 1)
376 {
377 if (enc_utf8 && utf_isupper(utf_ptr2char(p)))
378 {
379 ic = FALSE;
380 break;
381 }
382 p += l;
383 }
384 else
385 #endif
386 if (*p == '\\')
387 {
388 if (p[1] == '_' && p[2] != NUL) /* skip "\_X" */
389 p += 3;
390 else if (p[1] == '%' && p[2] != NUL) /* skip "\%X" */
391 p += 3;
392 else if (p[1] != NUL) /* skip "\X" */
393 p += 2;
394 else
395 p += 1;
396 }
397 else if (MB_ISUPPER(*p))
398 {
399 ic = FALSE;
400 break;
401 }
402 else
403 ++p;
404 }
405 }
406 no_smartcase = FALSE;
407
408 return ic;
409 }
410
411 char_u *
412 last_search_pat()
413 {
414 return spats[last_idx].pat;
415 }
416
417 /*
418 * Reset search direction to forward. For "gd" and "gD" commands.
419 */
420 void
421 reset_search_dir()
422 {
423 spats[0].off.dir = '/';
424 #if defined(FEAT_EVAL)
425 set_vv_searchforward();
426 #endif
427 }
428
429 #if defined(FEAT_EVAL) || defined(FEAT_VIMINFO)
430 /*
431 * Set the last search pattern. For ":let @/ =" and viminfo.
432 * Also set the saved search pattern, so that this works in an autocommand.
433 */
434 void
435 set_last_search_pat(s, idx, magic, setlast)
436 char_u *s;
437 int idx;
438 int magic;
439 int setlast;
440 {
441 vim_free(spats[idx].pat);
442 /* An empty string means that nothing should be matched. */
443 if (*s == NUL)
444 spats[idx].pat = NULL;
445 else
446 spats[idx].pat = vim_strsave(s);
447 spats[idx].magic = magic;
448 spats[idx].no_scs = FALSE;
449 spats[idx].off.dir = '/';
450 #if defined(FEAT_EVAL)
451 set_vv_searchforward();
452 #endif
453 spats[idx].off.line = FALSE;
454 spats[idx].off.end = FALSE;
455 spats[idx].off.off = 0;
456 if (setlast)
457 last_idx = idx;
458 if (save_level)
459 {
460 vim_free(saved_spats[idx].pat);
461 saved_spats[idx] = spats[0];
462 if (spats[idx].pat == NULL)
463 saved_spats[idx].pat = NULL;
464 else
465 saved_spats[idx].pat = vim_strsave(spats[idx].pat);
466 saved_last_idx = last_idx;
467 }
468 # ifdef FEAT_SEARCH_EXTRA
469 /* If 'hlsearch' set and search pat changed: need redraw. */
470 if (p_hls && idx == last_idx && !no_hlsearch)
471 redraw_all_later(SOME_VALID);
472 # endif
473 }
474 #endif
475
476 #ifdef FEAT_SEARCH_EXTRA
477 /*
478 * Get a regexp program for the last used search pattern.
479 * This is used for highlighting all matches in a window.
480 * Values returned in regmatch->regprog and regmatch->rmm_ic.
481 */
482 void
483 last_pat_prog(regmatch)
484 regmmatch_T *regmatch;
485 {
486 if (spats[last_idx].pat == NULL)
487 {
488 regmatch->regprog = NULL;
489 return;
490 }
491 ++emsg_off; /* So it doesn't beep if bad expr */
492 (void)search_regcomp((char_u *)"", 0, last_idx, SEARCH_KEEP, regmatch);
493 --emsg_off;
494 }
495 #endif
496
497 /*
498 * lowest level search function.
499 * Search for 'count'th occurrence of pattern 'pat' in direction 'dir'.
500 * Start at position 'pos' and return the found position in 'pos'.
501 *
502 * if (options & SEARCH_MSG) == 0 don't give any messages
503 * if (options & SEARCH_MSG) == SEARCH_NFMSG don't give 'notfound' messages
504 * if (options & SEARCH_MSG) == SEARCH_MSG give all messages
505 * if (options & SEARCH_HIS) put search pattern in history
506 * if (options & SEARCH_END) return position at end of match
507 * if (options & SEARCH_START) accept match at pos itself
508 * if (options & SEARCH_KEEP) keep previous search pattern
509 * if (options & SEARCH_FOLD) match only once in a closed fold
510 * if (options & SEARCH_PEEK) check for typed char, cancel search
511 *
512 * Return FAIL (zero) for failure, non-zero for success.
513 * When FEAT_EVAL is defined, returns the index of the first matching
514 * subpattern plus one; one if there was none.
515 */
516 /*ARGSUSED*/
517 int
518 searchit(win, buf, pos, dir, pat, count, options, pat_use, stop_lnum, tm)
519 win_T *win; /* window to search in; can be NULL for a
520 buffer without a window! */
521 buf_T *buf;
522 pos_T *pos;
523 int dir;
524 char_u *pat;
525 long count;
526 int options;
527 int pat_use; /* which pattern to use when "pat" is empty */
528 linenr_T stop_lnum; /* stop after this line number when != 0 */
529 proftime_T *tm; /* timeout limit or NULL */
530 {
531 int found;
532 linenr_T lnum; /* no init to shut up Apollo cc */
533 regmmatch_T regmatch;
534 char_u *ptr;
535 colnr_T matchcol;
536 lpos_T endpos;
537 lpos_T matchpos;
538 int loop;
539 pos_T start_pos;
540 int at_first_line;
541 int extra_col;
542 int match_ok;
543 long nmatched;
544 int submatch = 0;
545 int save_called_emsg = called_emsg;
546 #ifdef FEAT_SEARCH_EXTRA
547 int break_loop = FALSE;
548 #else
549 # define break_loop FALSE
550 #endif
551
552 if (search_regcomp(pat, RE_SEARCH, pat_use,
553 (options & (SEARCH_HIS + SEARCH_KEEP)), &regmatch) == FAIL)
554 {
555 if ((options & SEARCH_MSG) && !rc_did_emsg)
556 EMSG2(_("E383: Invalid search string: %s"), mr_pattern);
557 return FAIL;
558 }
559
560 /* When not accepting a match at the start position set "extra_col" to a
561 * non-zero value. Don't do that when starting at MAXCOL, since MAXCOL +
562 * 1 is zero. */
563 if ((options & SEARCH_START) || pos->col == MAXCOL)
564 extra_col = 0;
565 #ifdef FEAT_MBYTE
566 /* Watch out for the "col" being MAXCOL - 2, used in a closed fold. */
567 else if (has_mbyte && pos->lnum >= 1 && pos->lnum <= buf->b_ml.ml_line_count
568 && pos->col < MAXCOL - 2)
569 {
570 ptr = ml_get_buf(buf, pos->lnum, FALSE) + pos->col;
571 if (*ptr == NUL)
572 extra_col = 1;
573 else
574 extra_col = (*mb_ptr2len)(ptr);
575 }
576 #endif
577 else
578 extra_col = 1;
579
580 /*
581 * find the string
582 */
583 called_emsg = FALSE;
584 do /* loop for count */
585 {
586 start_pos = *pos; /* remember start pos for detecting no match */
587 found = 0; /* default: not found */
588 at_first_line = TRUE; /* default: start in first line */
589 if (pos->lnum == 0) /* correct lnum for when starting in line 0 */
590 {
591 pos->lnum = 1;
592 pos->col = 0;
593 at_first_line = FALSE; /* not in first line now */
594 }
595
596 /*
597 * Start searching in current line, unless searching backwards and
598 * we're in column 0.
599 * If we are searching backwards, in column 0, and not including the
600 * current position, gain some efficiency by skipping back a line.
601 * Otherwise begin the search in the current line.
602 */
603 if (dir == BACKWARD && start_pos.col == 0
604 && (options & SEARCH_START) == 0)
605 {
606 lnum = pos->lnum - 1;
607 at_first_line = FALSE;
608 }
609 else
610 lnum = pos->lnum;
611
612 for (loop = 0; loop <= 1; ++loop) /* loop twice if 'wrapscan' set */
613 {
614 for ( ; lnum > 0 && lnum <= buf->b_ml.ml_line_count;
615 lnum += dir, at_first_line = FALSE)
616 {
617 /* Stop after checking "stop_lnum", if it's set. */
618 if (stop_lnum != 0 && (dir == FORWARD
619 ? lnum > stop_lnum : lnum < stop_lnum))
620 break;
621 #ifdef FEAT_RELTIME
622 /* Stop after passing the "tm" time limit. */
623 if (tm != NULL && profile_passed_limit(tm))
624 break;
625 #endif
626
627 /*
628 * Look for a match somewhere in line "lnum".
629 */
630 nmatched = vim_regexec_multi(&regmatch, win, buf,
631 lnum, (colnr_T)0,
632 #ifdef FEAT_RELTIME
633 tm
634 #else
635 NULL
636 #endif
637 );
638 /* Abort searching on an error (e.g., out of stack). */
639 if (called_emsg)
640 break;
641 if (nmatched > 0)
642 {
643 /* match may actually be in another line when using \zs */
644 matchpos = regmatch.startpos[0];
645 endpos = regmatch.endpos[0];
646 #ifdef FEAT_EVAL
647 submatch = first_submatch(&regmatch);
648 #endif
649 /* "lnum" may be past end of buffer for "\n\zs". */
650 if (lnum + matchpos.lnum > buf->b_ml.ml_line_count)
651 ptr = (char_u *)"";
652 else
653 ptr = ml_get_buf(buf, lnum + matchpos.lnum, FALSE);
654
655 /*
656 * Forward search in the first line: match should be after
657 * the start position. If not, continue at the end of the
658 * match (this is vi compatible) or on the next char.
659 */
660 if (dir == FORWARD && at_first_line)
661 {
662 match_ok = TRUE;
663 /*
664 * When the match starts in a next line it's certainly
665 * past the start position.
666 * When match lands on a NUL the cursor will be put
667 * one back afterwards, compare with that position,
668 * otherwise "/$" will get stuck on end of line.
669 */
670 while (matchpos.lnum == 0
671 && ((options & SEARCH_END)
672 ? (nmatched == 1
673 && (int)endpos.col - 1
674 < (int)start_pos.col + extra_col)
675 : ((int)matchpos.col
676 - (ptr[matchpos.col] == NUL)
677 < (int)start_pos.col + extra_col)))
678 {
679 /*
680 * If vi-compatible searching, continue at the end
681 * of the match, otherwise continue one position
682 * forward.
683 */
684 if (vim_strchr(p_cpo, CPO_SEARCH) != NULL)
685 {
686 if (nmatched > 1)
687 {
688 /* end is in next line, thus no match in
689 * this line */
690 match_ok = FALSE;
691 break;
692 }
693 matchcol = endpos.col;
694 /* for empty match: advance one char */
695 if (matchcol == matchpos.col
696 && ptr[matchcol] != NUL)
697 {
698 #ifdef FEAT_MBYTE
699 if (has_mbyte)
700 matchcol +=
701 (*mb_ptr2len)(ptr + matchcol);
702 else
703 #endif
704 ++matchcol;
705 }
706 }
707 else
708 {
709 matchcol = matchpos.col;
710 if (ptr[matchcol] != NUL)
711 {
712 #ifdef FEAT_MBYTE
713 if (has_mbyte)
714 matchcol += (*mb_ptr2len)(ptr
715 + matchcol);
716 else
717 #endif
718 ++matchcol;
719 }
720 }
721 if (ptr[matchcol] == NUL
722 || (nmatched = vim_regexec_multi(&regmatch,
723 win, buf, lnum + matchpos.lnum,
724 matchcol,
725 #ifdef FEAT_RELTIME
726 tm
727 #else
728 NULL
729 #endif
730 )) == 0)
731 {
732 match_ok = FALSE;
733 break;
734 }
735 matchpos = regmatch.startpos[0];
736 endpos = regmatch.endpos[0];
737 # ifdef FEAT_EVAL
738 submatch = first_submatch(&regmatch);
739 # endif
740
741 /* Need to get the line pointer again, a
742 * multi-line search may have made it invalid. */
743 ptr = ml_get_buf(buf, lnum + matchpos.lnum, FALSE);
744 }
745 if (!match_ok)
746 continue;
747 }
748 if (dir == BACKWARD)
749 {
750 /*
751 * Now, if there are multiple matches on this line,
752 * we have to get the last one. Or the last one before
753 * the cursor, if we're on that line.
754 * When putting the new cursor at the end, compare
755 * relative to the end of the match.
756 */
757 match_ok = FALSE;
758 for (;;)
759 {
760 /* Remember a position that is before the start
761 * position, we use it if it's the last match in
762 * the line. Always accept a position after
763 * wrapping around. */
764 if (loop
765 || ((options & SEARCH_END)
766 ? (lnum + regmatch.endpos[0].lnum
767 < start_pos.lnum
768 || (lnum + regmatch.endpos[0].lnum
769 == start_pos.lnum
770 && (int)regmatch.endpos[0].col - 1
771 + extra_col
772 <= (int)start_pos.col))
773 : (lnum + regmatch.startpos[0].lnum
774 < start_pos.lnum
775 || (lnum + regmatch.startpos[0].lnum
776 == start_pos.lnum
777 && (int)regmatch.startpos[0].col
778 + extra_col
779 <= (int)start_pos.col))))
780 {
781 match_ok = TRUE;
782 matchpos = regmatch.startpos[0];
783 endpos = regmatch.endpos[0];
784 # ifdef FEAT_EVAL
785 submatch = first_submatch(&regmatch);
786 # endif
787 }
788 else
789 break;
790
791 /*
792 * We found a valid match, now check if there is
793 * another one after it.
794 * If vi-compatible searching, continue at the end
795 * of the match, otherwise continue one position
796 * forward.
797 */
798 if (vim_strchr(p_cpo, CPO_SEARCH) != NULL)
799 {
800 if (nmatched > 1)
801 break;
802 matchcol = endpos.col;
803 /* for empty match: advance one char */
804 if (matchcol == matchpos.col
805 && ptr[matchcol] != NUL)
806 {
807 #ifdef FEAT_MBYTE
808 if (has_mbyte)
809 matchcol +=
810 (*mb_ptr2len)(ptr + matchcol);
811 else
812 #endif
813 ++matchcol;
814 }
815 }
816 else
817 {
818 /* Stop when the match is in a next line. */
819 if (matchpos.lnum > 0)
820 break;
821 matchcol = matchpos.col;
822 if (ptr[matchcol] != NUL)
823 {
824 #ifdef FEAT_MBYTE
825 if (has_mbyte)
826 matchcol +=
827 (*mb_ptr2len)(ptr + matchcol);
828 else
829 #endif
830 ++matchcol;
831 }
832 }
833 if (ptr[matchcol] == NUL
834 || (nmatched = vim_regexec_multi(&regmatch,
835 win, buf, lnum + matchpos.lnum,
836 matchcol,
837 #ifdef FEAT_RELTIME
838 tm
839 #else
840 NULL
841 #endif
842 )) == 0)
843 break;
844
845 /* Need to get the line pointer again, a
846 * multi-line search may have made it invalid. */
847 ptr = ml_get_buf(buf, lnum + matchpos.lnum, FALSE);
848 }
849
850 /*
851 * If there is only a match after the cursor, skip
852 * this match.
853 */
854 if (!match_ok)
855 continue;
856 }
857
858 /* With the SEARCH_END option move to the last character
859 * of the match. Don't do it for an empty match, end
860 * should be same as start then. */
861 if (options & SEARCH_END && !(options & SEARCH_NOOF)
862 && !(matchpos.lnum == endpos.lnum
863 && matchpos.col == endpos.col))
864 {
865 /* For a match in the first column, set the position
866 * on the NUL in the previous line. */
867 pos->lnum = lnum + endpos.lnum;
868 pos->col = endpos.col;
869 if (endpos.col == 0)
870 {
871 if (pos->lnum > 1) /* just in case */
872 {
873 --pos->lnum;
874 pos->col = (colnr_T)STRLEN(ml_get_buf(buf,
875 pos->lnum, FALSE));
876 }
877 }
878 else
879 {
880 --pos->col;
881 #ifdef FEAT_MBYTE
882 if (has_mbyte
883 && pos->lnum <= buf->b_ml.ml_line_count)
884 {
885 ptr = ml_get_buf(buf, pos->lnum, FALSE);
886 pos->col -= (*mb_head_off)(ptr, ptr + pos->col);
887 }
888 #endif
889 }
890 }
891 else
892 {
893 pos->lnum = lnum + matchpos.lnum;
894 pos->col = matchpos.col;
895 }
896 #ifdef FEAT_VIRTUALEDIT
897 pos->coladd = 0;
898 #endif
899 found = 1;
900
901 /* Set variables used for 'incsearch' highlighting. */
902 search_match_lines = endpos.lnum - matchpos.lnum;
903 search_match_endcol = endpos.col;
904 break;
905 }
906 line_breakcheck(); /* stop if ctrl-C typed */
907 if (got_int)
908 break;
909
910 #ifdef FEAT_SEARCH_EXTRA
911 /* Cancel searching if a character was typed. Used for
912 * 'incsearch'. Don't check too often, that would slowdown
913 * searching too much. */
914 if ((options & SEARCH_PEEK)
915 && ((lnum - pos->lnum) & 0x3f) == 0
916 && char_avail())
917 {
918 break_loop = TRUE;
919 break;
920 }
921 #endif
922
923 if (loop && lnum == start_pos.lnum)
924 break; /* if second loop, stop where started */
925 }
926 at_first_line = FALSE;
927
928 /*
929 * Stop the search if wrapscan isn't set, "stop_lnum" is
930 * specified, after an interrupt, after a match and after looping
931 * twice.
932 */
933 if (!p_ws || stop_lnum != 0 || got_int || called_emsg
934 || break_loop || found || loop)
935 break;
936
937 /*
938 * If 'wrapscan' is set we continue at the other end of the file.
939 * If 'shortmess' does not contain 's', we give a message.
940 * This message is also remembered in keep_msg for when the screen
941 * is redrawn. The keep_msg is cleared whenever another message is
942 * written.
943 */
944 if (dir == BACKWARD) /* start second loop at the other end */
945 lnum = buf->b_ml.ml_line_count;
946 else
947 lnum = 1;
948 if (!shortmess(SHM_SEARCH) && (options & SEARCH_MSG))
949 give_warning((char_u *)_(dir == BACKWARD
950 ? top_bot_msg : bot_top_msg), TRUE);
951 }
952 if (got_int || called_emsg || break_loop)
953 break;
954 }
955 while (--count > 0 && found); /* stop after count matches or no match */
956
957 vim_free(regmatch.regprog);
958
959 called_emsg |= save_called_emsg;
960
961 if (!found) /* did not find it */
962 {
963 if (got_int)
964 EMSG(_(e_interr));
965 else if ((options & SEARCH_MSG) == SEARCH_MSG)
966 {
967 if (p_ws)
968 EMSG2(_(e_patnotf2), mr_pattern);
969 else if (lnum == 0)
970 EMSG2(_("E384: search hit TOP without match for: %s"),
971 mr_pattern);
972 else
973 EMSG2(_("E385: search hit BOTTOM without match for: %s"),
974 mr_pattern);
975 }
976 return FAIL;
977 }
978
979 /* A pattern like "\n\zs" may go past the last line. */
980 if (pos->lnum > buf->b_ml.ml_line_count)
981 {
982 pos->lnum = buf->b_ml.ml_line_count;
983 pos->col = (int)STRLEN(ml_get_buf(buf, pos->lnum, FALSE));
984 if (pos->col > 0)
985 --pos->col;
986 }
987
988 return submatch + 1;
989 }
990
991 #ifdef FEAT_EVAL
992 void
993 set_search_direction(cdir)
994 int cdir;
995 {
996 spats[0].off.dir = cdir;
997 }
998
999 static void
1000 set_vv_searchforward()
1001 {
1002 set_vim_var_nr(VV_SEARCHFORWARD, (long)(spats[0].off.dir == '/'));
1003 }
1004
1005 /*
1006 * Return the number of the first subpat that matched.
1007 */
1008 static int
1009 first_submatch(rp)
1010 regmmatch_T *rp;
1011 {
1012 int submatch;
1013
1014 for (submatch = 1; ; ++submatch)
1015 {
1016 if (rp->startpos[submatch].lnum >= 0)
1017 break;
1018 if (submatch == 9)
1019 {
1020 submatch = 0;
1021 break;
1022 }
1023 }
1024 return submatch;
1025 }
1026 #endif
1027
1028 /*
1029 * Highest level string search function.
1030 * Search for the 'count'th occurrence of pattern 'pat' in direction 'dirc'
1031 * If 'dirc' is 0: use previous dir.
1032 * If 'pat' is NULL or empty : use previous string.
1033 * If 'options & SEARCH_REV' : go in reverse of previous dir.
1034 * If 'options & SEARCH_ECHO': echo the search command and handle options
1035 * If 'options & SEARCH_MSG' : may give error message
1036 * If 'options & SEARCH_OPT' : interpret optional flags
1037 * If 'options & SEARCH_HIS' : put search pattern in history
1038 * If 'options & SEARCH_NOOF': don't add offset to position
1039 * If 'options & SEARCH_MARK': set previous context mark
1040 * If 'options & SEARCH_KEEP': keep previous search pattern
1041 * If 'options & SEARCH_START': accept match at curpos itself
1042 * If 'options & SEARCH_PEEK': check for typed char, cancel search
1043 *
1044 * Careful: If spats[0].off.line == TRUE and spats[0].off.off == 0 this
1045 * makes the movement linewise without moving the match position.
1046 *
1047 * return 0 for failure, 1 for found, 2 for found and line offset added
1048 */
1049 int
1050 do_search(oap, dirc, pat, count, options, tm)
1051 oparg_T *oap; /* can be NULL */
1052 int dirc; /* '/' or '?' */
1053 char_u *pat;
1054 long count;
1055 int options;
1056 proftime_T *tm; /* timeout limit or NULL */
1057 {
1058 pos_T pos; /* position of the last match */
1059 char_u *searchstr;
1060 struct soffset old_off;
1061 int retval; /* Return value */
1062 char_u *p;
1063 long c;
1064 char_u *dircp;
1065 char_u *strcopy = NULL;
1066 char_u *ps;
1067
1068 /*
1069 * A line offset is not remembered, this is vi compatible.
1070 */
1071 if (spats[0].off.line && vim_strchr(p_cpo, CPO_LINEOFF) != NULL)
1072 {
1073 spats[0].off.line = FALSE;
1074 spats[0].off.off = 0;
1075 }
1076
1077 /*
1078 * Save the values for when (options & SEARCH_KEEP) is used.
1079 * (there is no "if ()" around this because gcc wants them initialized)
1080 */
1081 old_off = spats[0].off;
1082
1083 pos = curwin->w_cursor; /* start searching at the cursor position */
1084
1085 /*
1086 * Find out the direction of the search.
1087 */
1088 if (dirc == 0)
1089 dirc = spats[0].off.dir;
1090 else
1091 {
1092 spats[0].off.dir = dirc;
1093 #if defined(FEAT_EVAL)
1094 set_vv_searchforward();
1095 #endif
1096 }
1097 if (options & SEARCH_REV)
1098 {
1099 #ifdef WIN32
1100 /* There is a bug in the Visual C++ 2.2 compiler which means that
1101 * dirc always ends up being '/' */
1102 dirc = (dirc == '/') ? '?' : '/';
1103 #else
1104 if (dirc == '/')
1105 dirc = '?';
1106 else
1107 dirc = '/';
1108 #endif
1109 }
1110
1111 #ifdef FEAT_FOLDING
1112 /* If the cursor is in a closed fold, don't find another match in the same
1113 * fold. */
1114 if (dirc == '/')
1115 {
1116 if (hasFolding(pos.lnum, NULL, &pos.lnum))
1117 pos.col = MAXCOL - 2; /* avoid overflow when adding 1 */
1118 }
1119 else
1120 {
1121 if (hasFolding(pos.lnum, &pos.lnum, NULL))
1122 pos.col = 0;
1123 }
1124 #endif
1125
1126 #ifdef FEAT_SEARCH_EXTRA
1127 /*
1128 * Turn 'hlsearch' highlighting back on.
1129 */
1130 if (no_hlsearch && !(options & SEARCH_KEEP))
1131 {
1132 redraw_all_later(SOME_VALID);
1133 no_hlsearch = FALSE;
1134 }
1135 #endif
1136
1137 /*
1138 * Repeat the search when pattern followed by ';', e.g. "/foo/;?bar".
1139 */
1140 for (;;)
1141 {
1142 searchstr = pat;
1143 dircp = NULL;
1144 /* use previous pattern */
1145 if (pat == NULL || *pat == NUL || *pat == dirc)
1146 {
1147 if (spats[RE_SEARCH].pat == NULL) /* no previous pattern */
1148 {
1149 EMSG(_(e_noprevre));
1150 retval = 0;
1151 goto end_do_search;
1152 }
1153 /* make search_regcomp() use spats[RE_SEARCH].pat */
1154 searchstr = (char_u *)"";
1155 }
1156
1157 if (pat != NULL && *pat != NUL) /* look for (new) offset */
1158 {
1159 /*
1160 * Find end of regular expression.
1161 * If there is a matching '/' or '?', toss it.
1162 */
1163 ps = strcopy;
1164 p = skip_regexp(pat, dirc, (int)p_magic, &strcopy);
1165 if (strcopy != ps)
1166 {
1167 /* made a copy of "pat" to change "\?" to "?" */
1168 searchcmdlen += (int)(STRLEN(pat) - STRLEN(strcopy));
1169 pat = strcopy;
1170 searchstr = strcopy;
1171 }
1172 if (*p == dirc)
1173 {
1174 dircp = p; /* remember where we put the NUL */
1175 *p++ = NUL;
1176 }
1177 spats[0].off.line = FALSE;
1178 spats[0].off.end = FALSE;
1179 spats[0].off.off = 0;
1180 /*
1181 * Check for a line offset or a character offset.
1182 * For get_address (echo off) we don't check for a character
1183 * offset, because it is meaningless and the 's' could be a
1184 * substitute command.
1185 */
1186 if (*p == '+' || *p == '-' || VIM_ISDIGIT(*p))
1187 spats[0].off.line = TRUE;
1188 else if ((options & SEARCH_OPT) &&
1189 (*p == 'e' || *p == 's' || *p == 'b'))
1190 {
1191 if (*p == 'e') /* end */
1192 spats[0].off.end = SEARCH_END;
1193 ++p;
1194 }
1195 if (VIM_ISDIGIT(*p) || *p == '+' || *p == '-') /* got an offset */
1196 {
1197 /* 'nr' or '+nr' or '-nr' */
1198 if (VIM_ISDIGIT(*p) || VIM_ISDIGIT(*(p + 1)))
1199 spats[0].off.off = atol((char *)p);
1200 else if (*p == '-') /* single '-' */
1201 spats[0].off.off = -1;
1202 else /* single '+' */
1203 spats[0].off.off = 1;
1204 ++p;
1205 while (VIM_ISDIGIT(*p)) /* skip number */
1206 ++p;
1207 }
1208
1209 /* compute length of search command for get_address() */
1210 searchcmdlen += (int)(p - pat);
1211
1212 pat = p; /* put pat after search command */
1213 }
1214
1215 if ((options & SEARCH_ECHO) && messaging()
1216 && !cmd_silent && msg_silent == 0)
1217 {
1218 char_u *msgbuf;
1219 char_u *trunc;
1220
1221 if (*searchstr == NUL)
1222 p = spats[last_idx].pat;
1223 else
1224 p = searchstr;
1225 msgbuf = alloc((unsigned)(STRLEN(p) + 40));
1226 if (msgbuf != NULL)
1227 {
1228 msgbuf[0] = dirc;
1229 #ifdef FEAT_MBYTE
1230 if (enc_utf8 && utf_iscomposing(utf_ptr2char(p)))
1231 {
1232 /* Use a space to draw the composing char on. */
1233 msgbuf[1] = ' ';
1234 STRCPY(msgbuf + 2, p);
1235 }
1236 else
1237 #endif
1238 STRCPY(msgbuf + 1, p);
1239 if (spats[0].off.line || spats[0].off.end || spats[0].off.off)
1240 {
1241 p = msgbuf + STRLEN(msgbuf);
1242 *p++ = dirc;
1243 if (spats[0].off.end)
1244 *p++ = 'e';
1245 else if (!spats[0].off.line)
1246 *p++ = 's';
1247 if (spats[0].off.off > 0 || spats[0].off.line)
1248 *p++ = '+';
1249 if (spats[0].off.off != 0 || spats[0].off.line)
1250 sprintf((char *)p, "%ld", spats[0].off.off);
1251 else
1252 *p = NUL;
1253 }
1254
1255 msg_start();
1256 trunc = msg_strtrunc(msgbuf, FALSE);
1257
1258 #ifdef FEAT_RIGHTLEFT
1259 /* The search pattern could be shown on the right in rightleft
1260 * mode, but the 'ruler' and 'showcmd' area use it too, thus
1261 * it would be blanked out again very soon. Show it on the
1262 * left, but do reverse the text. */
1263 if (curwin->w_p_rl && *curwin->w_p_rlc == 's')
1264 {
1265 char_u *r;
1266
1267 r = reverse_text(trunc != NULL ? trunc : msgbuf);
1268 if (r != NULL)
1269 {
1270 vim_free(trunc);
1271 trunc = r;
1272 }
1273 }
1274 #endif
1275 if (trunc != NULL)
1276 {
1277 msg_outtrans(trunc);
1278 vim_free(trunc);
1279 }
1280 else
1281 msg_outtrans(msgbuf);
1282 msg_clr_eos();
1283 msg_check();
1284 vim_free(msgbuf);
1285
1286 gotocmdline(FALSE);
1287 out_flush();
1288 msg_nowait = TRUE; /* don't wait for this message */
1289 }
1290 }
1291
1292 /*
1293 * If there is a character offset, subtract it from the current
1294 * position, so we don't get stuck at "?pat?e+2" or "/pat/s-2".
1295 * Skip this if pos.col is near MAXCOL (closed fold).
1296 * This is not done for a line offset, because then we would not be vi
1297 * compatible.
1298 */
1299 if (!spats[0].off.line && spats[0].off.off && pos.col < MAXCOL - 2)
1300 {
1301 if (spats[0].off.off > 0)
1302 {
1303 for (c = spats[0].off.off; c; --c)
1304 if (decl(&pos) == -1)
1305 break;
1306 if (c) /* at start of buffer */
1307 {
1308 pos.lnum = 0; /* allow lnum == 0 here */
1309 pos.col = MAXCOL;
1310 }
1311 }
1312 else
1313 {
1314 for (c = spats[0].off.off; c; ++c)
1315 if (incl(&pos) == -1)
1316 break;
1317 if (c) /* at end of buffer */
1318 {
1319 pos.lnum = curbuf->b_ml.ml_line_count + 1;
1320 pos.col = 0;
1321 }
1322 }
1323 }
1324
1325 #ifdef FEAT_FKMAP /* when in Farsi mode, reverse the character flow */
1326 if (p_altkeymap && curwin->w_p_rl)
1327 lrFswap(searchstr,0);
1328 #endif
1329
1330 c = searchit(curwin, curbuf, &pos, dirc == '/' ? FORWARD : BACKWARD,
1331 searchstr, count, spats[0].off.end + (options &
1332 (SEARCH_KEEP + SEARCH_PEEK + SEARCH_HIS
1333 + SEARCH_MSG + SEARCH_START
1334 + ((pat != NULL && *pat == ';') ? 0 : SEARCH_NOOF))),
1335 RE_LAST, (linenr_T)0, tm);
1336
1337 if (dircp != NULL)
1338 *dircp = dirc; /* restore second '/' or '?' for normal_cmd() */
1339 if (c == FAIL)
1340 {
1341 retval = 0;
1342 goto end_do_search;
1343 }
1344 if (spats[0].off.end && oap != NULL)
1345 oap->inclusive = TRUE; /* 'e' includes last character */
1346
1347 retval = 1; /* pattern found */
1348
1349 /*
1350 * Add character and/or line offset
1351 */
1352 if (!(options & SEARCH_NOOF) || (pat != NULL && *pat == ';'))
1353 {
1354 if (spats[0].off.line) /* Add the offset to the line number. */
1355 {
1356 c = pos.lnum + spats[0].off.off;
1357 if (c < 1)
1358 pos.lnum = 1;
1359 else if (c > curbuf->b_ml.ml_line_count)
1360 pos.lnum = curbuf->b_ml.ml_line_count;
1361 else
1362 pos.lnum = c;
1363 pos.col = 0;
1364
1365 retval = 2; /* pattern found, line offset added */
1366 }
1367 else if (pos.col < MAXCOL - 2) /* just in case */
1368 {
1369 /* to the right, check for end of file */
1370 c = spats[0].off.off;
1371 if (c > 0)
1372 {
1373 while (c-- > 0)
1374 if (incl(&pos) == -1)
1375 break;
1376 }
1377 /* to the left, check for start of file */
1378 else
1379 {
1380 while (c++ < 0)
1381 if (decl(&pos) == -1)
1382 break;
1383 }
1384 }
1385 }
1386
1387 /*
1388 * The search command can be followed by a ';' to do another search.
1389 * For example: "/pat/;/foo/+3;?bar"
1390 * This is like doing another search command, except:
1391 * - The remembered direction '/' or '?' is from the first search.
1392 * - When an error happens the cursor isn't moved at all.
1393 * Don't do this when called by get_address() (it handles ';' itself).
1394 */
1395 if (!(options & SEARCH_OPT) || pat == NULL || *pat != ';')
1396 break;
1397
1398 dirc = *++pat;
1399 if (dirc != '?' && dirc != '/')
1400 {
1401 retval = 0;
1402 EMSG(_("E386: Expected '?' or '/' after ';'"));
1403 goto end_do_search;
1404 }
1405 ++pat;
1406 }
1407
1408 if (options & SEARCH_MARK)
1409 setpcmark();
1410 curwin->w_cursor = pos;
1411 curwin->w_set_curswant = TRUE;
1412
1413 end_do_search:
1414 if (options & SEARCH_KEEP)
1415 spats[0].off = old_off;
1416 vim_free(strcopy);
1417
1418 return retval;
1419 }
1420
1421 #if defined(FEAT_INS_EXPAND) || defined(PROTO)
1422 /*
1423 * search_for_exact_line(buf, pos, dir, pat)
1424 *
1425 * Search for a line starting with the given pattern (ignoring leading
1426 * white-space), starting from pos and going in direction dir. pos will
1427 * contain the position of the match found. Blank lines match only if
1428 * ADDING is set. if p_ic is set then the pattern must be in lowercase.
1429 * Return OK for success, or FAIL if no line found.
1430 */
1431 int
1432 search_for_exact_line(buf, pos, dir, pat)
1433 buf_T *buf;
1434 pos_T *pos;
1435 int dir;
1436 char_u *pat;
1437 {
1438 linenr_T start = 0;
1439 char_u *ptr;
1440 char_u *p;
1441
1442 if (buf->b_ml.ml_line_count == 0)
1443 return FAIL;
1444 for (;;)
1445 {
1446 pos->lnum += dir;
1447 if (pos->lnum < 1)
1448 {
1449 if (p_ws)
1450 {
1451 pos->lnum = buf->b_ml.ml_line_count;
1452 if (!shortmess(SHM_SEARCH))
1453 give_warning((char_u *)_(top_bot_msg), TRUE);
1454 }
1455 else
1456 {
1457 pos->lnum = 1;
1458 break;
1459 }
1460 }
1461 else if (pos->lnum > buf->b_ml.ml_line_count)
1462 {
1463 if (p_ws)
1464 {
1465 pos->lnum = 1;
1466 if (!shortmess(SHM_SEARCH))
1467 give_warning((char_u *)_(bot_top_msg), TRUE);
1468 }
1469 else
1470 {
1471 pos->lnum = 1;
1472 break;
1473 }
1474 }
1475 if (pos->lnum == start)
1476 break;
1477 if (start == 0)
1478 start = pos->lnum;
1479 ptr = ml_get_buf(buf, pos->lnum, FALSE);
1480 p = skipwhite(ptr);
1481 pos->col = (colnr_T) (p - ptr);
1482
1483 /* when adding lines the matching line may be empty but it is not
1484 * ignored because we are interested in the next line -- Acevedo */
1485 if ((compl_cont_status & CONT_ADDING)
1486 && !(compl_cont_status & CONT_SOL))
1487 {
1488 if ((p_ic ? MB_STRICMP(p, pat) : STRCMP(p, pat)) == 0)
1489 return OK;
1490 }
1491 else if (*p != NUL) /* ignore empty lines */
1492 { /* expanding lines or words */
1493 if ((p_ic ? MB_STRNICMP(p, pat, compl_length)
1494 : STRNCMP(p, pat, compl_length)) == 0)
1495 return OK;
1496 }
1497 }
1498 return FAIL;
1499 }
1500 #endif /* FEAT_INS_EXPAND */
1501
1502 /*
1503 * Character Searches
1504 */
1505
1506 /*
1507 * Search for a character in a line. If "t_cmd" is FALSE, move to the
1508 * position of the character, otherwise move to just before the char.
1509 * Do this "cap->count1" times.
1510 * Return FAIL or OK.
1511 */
1512 int
1513 searchc(cap, t_cmd)
1514 cmdarg_T *cap;
1515 int t_cmd;
1516 {
1517 int c = cap->nchar; /* char to search for */
1518 int dir = cap->arg; /* TRUE for searching forward */
1519 long count = cap->count1; /* repeat count */
1520 static int lastc = NUL; /* last character searched for */
1521 static int lastcdir; /* last direction of character search */
1522 static int last_t_cmd; /* last search t_cmd */
1523 int col;
1524 char_u *p;
1525 int len;
1526 #ifdef FEAT_MBYTE
1527 static char_u bytes[MB_MAXBYTES];
1528 static int bytelen = 1; /* >1 for multi-byte char */
1529 #endif
1530
1531 if (c != NUL) /* normal search: remember args for repeat */
1532 {
1533 if (!KeyStuffed) /* don't remember when redoing */
1534 {
1535 lastc = c;
1536 lastcdir = dir;
1537 last_t_cmd = t_cmd;
1538 #ifdef FEAT_MBYTE
1539 bytelen = (*mb_char2bytes)(c, bytes);
1540 if (cap->ncharC1 != 0)
1541 {
1542 bytelen += (*mb_char2bytes)(cap->ncharC1, bytes + bytelen);
1543 if (cap->ncharC2 != 0)
1544 bytelen += (*mb_char2bytes)(cap->ncharC2, bytes + bytelen);
1545 }
1546 #endif
1547 }
1548 }
1549 else /* repeat previous search */
1550 {
1551 if (lastc == NUL)
1552 return FAIL;
1553 if (dir) /* repeat in opposite direction */
1554 dir = -lastcdir;
1555 else
1556 dir = lastcdir;
1557 t_cmd = last_t_cmd;
1558 c = lastc;
1559 /* For multi-byte re-use last bytes[] and bytelen. */
1560 }
1561
1562 if (dir == BACKWARD)
1563 cap->oap->inclusive = FALSE;
1564 else
1565 cap->oap->inclusive = TRUE;
1566
1567 p = ml_get_curline();
1568 col = curwin->w_cursor.col;
1569 len = (int)STRLEN(p);
1570
1571 while (count--)
1572 {
1573 #ifdef FEAT_MBYTE
1574 if (has_mbyte)
1575 {
1576 for (;;)
1577 {
1578 if (dir > 0)
1579 {
1580 col += (*mb_ptr2len)(p + col);
1581 if (col >= len)
1582 return FAIL;
1583 }
1584 else
1585 {
1586 if (col == 0)
1587 return FAIL;
1588 col -= (*mb_head_off)(p, p + col - 1) + 1;
1589 }
1590 if (bytelen == 1)
1591 {
1592 if (p[col] == c)
1593 break;
1594 }
1595 else
1596 {
1597 if (vim_memcmp(p + col, bytes, bytelen) == 0)
1598 break;
1599 }
1600 }
1601 }
1602 else
1603 #endif
1604 {
1605 for (;;)
1606 {
1607 if ((col += dir) < 0 || col >= len)
1608 return FAIL;
1609 if (p[col] == c)
1610 break;
1611 }
1612 }
1613 }
1614
1615 if (t_cmd)
1616 {
1617 /* backup to before the character (possibly double-byte) */
1618 col -= dir;
1619 #ifdef FEAT_MBYTE
1620 if (has_mbyte)
1621 {
1622 if (dir < 0)
1623 /* Landed on the search char which is bytelen long */
1624 col += bytelen - 1;
1625 else
1626 /* To previous char, which may be multi-byte. */
1627 col -= (*mb_head_off)(p, p + col);
1628 }
1629 #endif
1630 }
1631 curwin->w_cursor.col = col;
1632
1633 return OK;
1634 }
1635
1636 /*
1637 * "Other" Searches
1638 */
1639
1640 /*
1641 * findmatch - find the matching paren or brace
1642 *
1643 * Improvement over vi: Braces inside quotes are ignored.
1644 */
1645 pos_T *
1646 findmatch(oap, initc)
1647 oparg_T *oap;
1648 int initc;
1649 {
1650 return findmatchlimit(oap, initc, 0, 0);
1651 }
1652
1653 /*
1654 * Return TRUE if the character before "linep[col]" equals "ch".
1655 * Return FALSE if "col" is zero.
1656 * Update "*prevcol" to the column of the previous character, unless "prevcol"
1657 * is NULL.
1658 * Handles multibyte string correctly.
1659 */
1660 static int
1661 check_prevcol(linep, col, ch, prevcol)
1662 char_u *linep;
1663 int col;
1664 int ch;
1665 int *prevcol;
1666 {
1667 --col;
1668 #ifdef FEAT_MBYTE
1669 if (col > 0 && has_mbyte)
1670 col -= (*mb_head_off)(linep, linep + col);
1671 #endif
1672 if (prevcol)
1673 *prevcol = col;
1674 return (col >= 0 && linep[col] == ch) ? TRUE : FALSE;
1675 }
1676
1677 /*
1678 * findmatchlimit -- find the matching paren or brace, if it exists within
1679 * maxtravel lines of here. A maxtravel of 0 means search until falling off
1680 * the edge of the file.
1681 *
1682 * "initc" is the character to find a match for. NUL means to find the
1683 * character at or after the cursor.
1684 *
1685 * flags: FM_BACKWARD search backwards (when initc is '/', '*' or '#')
1686 * FM_FORWARD search forwards (when initc is '/', '*' or '#')
1687 * FM_BLOCKSTOP stop at start/end of block ({ or } in column 0)
1688 * FM_SKIPCOMM skip comments (not implemented yet!)
1689 *
1690 * "oap" is only used to set oap->motion_type for a linewise motion, it be
1691 * NULL
1692 */
1693
1694 pos_T *
1695 findmatchlimit(oap, initc, flags, maxtravel)
1696 oparg_T *oap;
1697 int initc;
1698 int flags;
1699 int maxtravel;
1700 {
1701 static pos_T pos; /* current search position */
1702 int findc = 0; /* matching brace */
1703 int c;
1704 int count = 0; /* cumulative number of braces */
1705 int backwards = FALSE; /* init for gcc */
1706 int inquote = FALSE; /* TRUE when inside quotes */
1707 char_u *linep; /* pointer to current line */
1708 char_u *ptr;
1709 int do_quotes; /* check for quotes in current line */
1710 int at_start; /* do_quotes value at start position */
1711 int hash_dir = 0; /* Direction searched for # things */
1712 int comment_dir = 0; /* Direction searched for comments */
1713 pos_T match_pos; /* Where last slash-star was found */
1714 int start_in_quotes; /* start position is in quotes */
1715 int traveled = 0; /* how far we've searched so far */
1716 int ignore_cend = FALSE; /* ignore comment end */
1717 int cpo_match; /* vi compatible matching */
1718 int cpo_bsl; /* don't recognize backslashes */
1719 int match_escaped = 0; /* search for escaped match */
1720 int dir; /* Direction to search */
1721 int comment_col = MAXCOL; /* start of / / comment */
1722 #ifdef FEAT_LISP
1723 int lispcomm = FALSE; /* inside of Lisp-style comment */
1724 int lisp = curbuf->b_p_lisp; /* engage Lisp-specific hacks ;) */
1725 #endif
1726
1727 pos = curwin->w_cursor;
1728 linep = ml_get(pos.lnum);
1729
1730 cpo_match = (vim_strchr(p_cpo, CPO_MATCH) != NULL);
1731 cpo_bsl = (vim_strchr(p_cpo, CPO_MATCHBSL) != NULL);
1732
1733 /* Direction to search when initc is '/', '*' or '#' */
1734 if (flags & FM_BACKWARD)
1735 dir = BACKWARD;
1736 else if (flags & FM_FORWARD)
1737 dir = FORWARD;
1738 else
1739 dir = 0;
1740
1741 /*
1742 * if initc given, look in the table for the matching character
1743 * '/' and '*' are special cases: look for start or end of comment.
1744 * When '/' is used, we ignore running backwards into an star-slash, for
1745 * "[*" command, we just want to find any comment.
1746 */
1747 if (initc == '/' || initc == '*')
1748 {
1749 comment_dir = dir;
1750 if (initc == '/')
1751 ignore_cend = TRUE;
1752 backwards = (dir == FORWARD) ? FALSE : TRUE;
1753 initc = NUL;
1754 }
1755 else if (initc != '#' && initc != NUL)
1756 {
1757 /* 'matchpairs' is "x:y,x:y" */
1758 for (ptr = curbuf->b_p_mps; *ptr; ptr += 2)
1759 {
1760 if (*ptr == initc)
1761 {
1762 findc = initc;
1763 initc = ptr[2];
1764 backwards = TRUE;
1765 break;
1766 }
1767 ptr += 2;
1768 if (*ptr == initc)
1769 {
1770 findc = initc;
1771 initc = ptr[-2];
1772 backwards = FALSE;
1773 break;
1774 }
1775 if (ptr[1] != ',')
1776 break;
1777 }
1778 if (!findc) /* invalid initc! */
1779 return NULL;
1780 }
1781 /*
1782 * Either initc is '#', or no initc was given and we need to look under the
1783 * cursor.
1784 */
1785 else
1786 {
1787 if (initc == '#')
1788 {
1789 hash_dir = dir;
1790 }
1791 else
1792 {
1793 /*
1794 * initc was not given, must look for something to match under
1795 * or near the cursor.
1796 * Only check for special things when 'cpo' doesn't have '%'.
1797 */
1798 if (!cpo_match)
1799 {
1800 /* Are we before or at #if, #else etc.? */
1801 ptr = skipwhite(linep);
1802 if (*ptr == '#' && pos.col <= (colnr_T)(ptr - linep))
1803 {
1804 ptr = skipwhite(ptr + 1);
1805 if ( STRNCMP(ptr, "if", 2) == 0
1806 || STRNCMP(ptr, "endif", 5) == 0
1807 || STRNCMP(ptr, "el", 2) == 0)
1808 hash_dir = 1;
1809 }
1810
1811 /* Are we on a comment? */
1812 else if (linep[pos.col] == '/')
1813 {
1814 if (linep[pos.col + 1] == '*')
1815 {
1816 comment_dir = FORWARD;
1817 backwards = FALSE;
1818 pos.col++;
1819 }
1820 else if (pos.col > 0 && linep[pos.col - 1] == '*')
1821 {
1822 comment_dir = BACKWARD;
1823 backwards = TRUE;
1824 pos.col--;
1825 }
1826 }
1827 else if (linep[pos.col] == '*')
1828 {
1829 if (linep[pos.col + 1] == '/')
1830 {
1831 comment_dir = BACKWARD;
1832 backwards = TRUE;
1833 }
1834 else if (pos.col > 0 && linep[pos.col - 1] == '/')
1835 {
1836 comment_dir = FORWARD;
1837 backwards = FALSE;
1838 }
1839 }
1840 }
1841
1842 /*
1843 * If we are not on a comment or the # at the start of a line, then
1844 * look for brace anywhere on this line after the cursor.
1845 */
1846 if (!hash_dir && !comment_dir)
1847 {
1848 /*
1849 * Find the brace under or after the cursor.
1850 * If beyond the end of the line, use the last character in
1851 * the line.
1852 */
1853 if (linep[pos.col] == NUL && pos.col)
1854 --pos.col;
1855 for (;;)
1856 {
1857 initc = linep[pos.col];
1858 if (initc == NUL)
1859 break;
1860
1861 for (ptr = curbuf->b_p_mps; *ptr; ++ptr)
1862 {
1863 if (*ptr == initc)
1864 {
1865 findc = ptr[2];
1866 backwards = FALSE;
1867 break;
1868 }
1869 ptr += 2;
1870 if (*ptr == initc)
1871 {
1872 findc = ptr[-2];
1873 backwards = TRUE;
1874 break;
1875 }
1876 if (!*++ptr)
1877 break;
1878 }
1879 if (findc)
1880 break;
1881 #ifdef FEAT_MBYTE
1882 if (has_mbyte)
1883 pos.col += (*mb_ptr2len)(linep + pos.col);
1884 else
1885 #endif
1886 ++pos.col;
1887 }
1888 if (!findc)
1889 {
1890 /* no brace in the line, maybe use " #if" then */
1891 if (!cpo_match && *skipwhite(linep) == '#')
1892 hash_dir = 1;
1893 else
1894 return NULL;
1895 }
1896 else if (!cpo_bsl)
1897 {
1898 int col, bslcnt = 0;
1899
1900 /* Set "match_escaped" if there are an odd number of
1901 * backslashes. */
1902 for (col = pos.col; check_prevcol(linep, col, '\\', &col);)
1903 bslcnt++;
1904 match_escaped = (bslcnt & 1);
1905 }
1906 }
1907 }
1908 if (hash_dir)
1909 {
1910 /*
1911 * Look for matching #if, #else, #elif, or #endif
1912 */
1913 if (oap != NULL)
1914 oap->motion_type = MLINE; /* Linewise for this case only */
1915 if (initc != '#')
1916 {
1917 ptr = skipwhite(skipwhite(linep) + 1);
1918 if (STRNCMP(ptr, "if", 2) == 0 || STRNCMP(ptr, "el", 2) == 0)
1919 hash_dir = 1;
1920 else if (STRNCMP(ptr, "endif", 5) == 0)
1921 hash_dir = -1;
1922 else
1923 return NULL;
1924 }
1925 pos.col = 0;
1926 while (!got_int)
1927 {
1928 if (hash_dir > 0)
1929 {
1930 if (pos.lnum == curbuf->b_ml.ml_line_count)
1931 break;
1932 }
1933 else if (pos.lnum == 1)
1934 break;
1935 pos.lnum += hash_dir;
1936 linep = ml_get(pos.lnum);
1937 line_breakcheck(); /* check for CTRL-C typed */
1938 ptr = skipwhite(linep);
1939 if (*ptr != '#')
1940 continue;
1941 pos.col = (colnr_T) (ptr - linep);
1942 ptr = skipwhite(ptr + 1);
1943 if (hash_dir > 0)
1944 {
1945 if (STRNCMP(ptr, "if", 2) == 0)
1946 count++;
1947 else if (STRNCMP(ptr, "el", 2) == 0)
1948 {
1949 if (count == 0)
1950 return &pos;
1951 }
1952 else if (STRNCMP(ptr, "endif", 5) == 0)
1953 {
1954 if (count == 0)
1955 return &pos;
1956 count--;
1957 }
1958 }
1959 else
1960 {
1961 if (STRNCMP(ptr, "if", 2) == 0)
1962 {
1963 if (count == 0)
1964 return &pos;
1965 count--;
1966 }
1967 else if (initc == '#' && STRNCMP(ptr, "el", 2) == 0)
1968 {
1969 if (count == 0)
1970 return &pos;
1971 }
1972 else if (STRNCMP(ptr, "endif", 5) == 0)
1973 count++;
1974 }
1975 }
1976 return NULL;
1977 }
1978 }
1979
1980 #ifdef FEAT_RIGHTLEFT
1981 /* This is just guessing: when 'rightleft' is set, search for a matching
1982 * paren/brace in the other direction. */
1983 if (curwin->w_p_rl && vim_strchr((char_u *)"()[]{}<>", initc) != NULL)
1984 backwards = !backwards;
1985 #endif
1986
1987 do_quotes = -1;
1988 start_in_quotes = MAYBE;
1989 clearpos(&match_pos);
1990
1991 /* backward search: Check if this line contains a single-line comment */
1992 if ((backwards && comment_dir)
1993 #ifdef FEAT_LISP
1994 || lisp
1995 #endif
1996 )
1997 comment_col = check_linecomment(linep);
1998 #ifdef FEAT_LISP
1999 if (lisp && comment_col != MAXCOL && pos.col > (colnr_T)comment_col)
2000 lispcomm = TRUE; /* find match inside this comment */
2001 #endif
2002 while (!got_int)
2003 {
2004 /*
2005 * Go to the next position, forward or backward. We could use
2006 * inc() and dec() here, but that is much slower
2007 */
2008 if (backwards)
2009 {
2010 #ifdef FEAT_LISP
2011 /* char to match is inside of comment, don't search outside */
2012 if (lispcomm && pos.col < (colnr_T)comment_col)
2013 break;
2014 #endif
2015 if (pos.col == 0) /* at start of line, go to prev. one */
2016 {
2017 if (pos.lnum == 1) /* start of file */
2018 break;
2019 --pos.lnum;
2020
2021 if (maxtravel > 0 && ++traveled > maxtravel)
2022 break;
2023
2024 linep = ml_get(pos.lnum);
2025 pos.col = (colnr_T)STRLEN(linep); /* pos.col on trailing NUL */
2026 do_quotes = -1;
2027 line_breakcheck();
2028
2029 /* Check if this line contains a single-line comment */
2030 if (comment_dir
2031 #ifdef FEAT_LISP
2032 || lisp
2033 #endif
2034 )
2035 comment_col = check_linecomment(linep);
2036 #ifdef FEAT_LISP
2037 /* skip comment */
2038 if (lisp && comment_col != MAXCOL)
2039 pos.col = comment_col;
2040 #endif
2041 }
2042 else
2043 {
2044 --pos.col;
2045 #ifdef FEAT_MBYTE
2046 if (has_mbyte)
2047 pos.col -= (*mb_head_off)(linep, linep + pos.col);
2048 #endif
2049 }
2050 }
2051 else /* forward search */
2052 {
2053 if (linep[pos.col] == NUL
2054 /* at end of line, go to next one */
2055 #ifdef FEAT_LISP
2056 /* don't search for match in comment */
2057 || (lisp && comment_col != MAXCOL
2058 && pos.col == (colnr_T)comment_col)
2059 #endif
2060 )
2061 {
2062 if (pos.lnum == curbuf->b_ml.ml_line_count /* end of file */
2063 #ifdef FEAT_LISP
2064 /* line is exhausted and comment with it,
2065 * don't search for match in code */
2066 || lispcomm
2067 #endif
2068 )
2069 break;
2070 ++pos.lnum;
2071
2072 if (maxtravel && traveled++ > maxtravel)
2073 break;
2074
2075 linep = ml_get(pos.lnum);
2076 pos.col = 0;
2077 do_quotes = -1;
2078 line_breakcheck();
2079 #ifdef FEAT_LISP
2080 if (lisp) /* find comment pos in new line */
2081 comment_col = check_linecomment(linep);
2082 #endif
2083 }
2084 else
2085 {
2086 #ifdef FEAT_MBYTE
2087 if (has_mbyte)
2088 pos.col += (*mb_ptr2len)(linep + pos.col);
2089 else
2090 #endif
2091 ++pos.col;
2092 }
2093 }
2094
2095 /*
2096 * If FM_BLOCKSTOP given, stop at a '{' or '}' in column 0.
2097 */
2098 if (pos.col == 0 && (flags & FM_BLOCKSTOP) &&
2099 (linep[0] == '{' || linep[0] == '}'))
2100 {
2101 if (linep[0] == findc && count == 0) /* match! */
2102 return &pos;
2103 break; /* out of scope */
2104 }
2105
2106 if (comment_dir)
2107 {
2108 /* Note: comments do not nest, and we ignore quotes in them */
2109 /* TODO: ignore comment brackets inside strings */
2110 if (comment_dir == FORWARD)
2111 {
2112 if (linep[pos.col] == '*' && linep[pos.col + 1] == '/')
2113 {
2114 pos.col++;
2115 return &pos;
2116 }
2117 }
2118 else /* Searching backwards */
2119 {
2120 /*
2121 * A comment may contain / * or / /, it may also start or end
2122 * with / * /. Ignore a / * after / /.
2123 */
2124 if (pos.col == 0)
2125 continue;
2126 else if ( linep[pos.col - 1] == '/'
2127 && linep[pos.col] == '*'
2128 && (int)pos.col < comment_col)
2129 {
2130 count++;
2131 match_pos = pos;
2132 match_pos.col--;
2133 }
2134 else if (linep[pos.col - 1] == '*' && linep[pos.col] == '/')
2135 {
2136 if (count > 0)
2137 pos = match_pos;
2138 else if (pos.col > 1 && linep[pos.col - 2] == '/'
2139 && (int)pos.col <= comment_col)
2140 pos.col -= 2;
2141 else if (ignore_cend)
2142 continue;
2143 else
2144 return NULL;
2145 return &pos;
2146 }
2147 }
2148 continue;
2149 }
2150
2151 /*
2152 * If smart matching ('cpoptions' does not contain '%'), braces inside
2153 * of quotes are ignored, but only if there is an even number of
2154 * quotes in the line.
2155 */
2156 if (cpo_match)
2157 do_quotes = 0;
2158 else if (do_quotes == -1)
2159 {
2160 /*
2161 * Count the number of quotes in the line, skipping \" and '"'.
2162 * Watch out for "\\".
2163 */
2164 at_start = do_quotes;
2165 for (ptr = linep; *ptr; ++ptr)
2166 {
2167 if (ptr == linep + pos.col + backwards)
2168 at_start = (do_quotes & 1);
2169 if (*ptr == '"'
2170 && (ptr == linep || ptr[-1] != '\'' || ptr[1] != '\''))
2171 ++do_quotes;
2172 if (*ptr == '\\' && ptr[1] != NUL)
2173 ++ptr;
2174 }
2175 do_quotes &= 1; /* result is 1 with even number of quotes */
2176
2177 /*
2178 * If we find an uneven count, check current line and previous
2179 * one for a '\' at the end.
2180 */
2181 if (!do_quotes)
2182 {
2183 inquote = FALSE;
2184 if (ptr[-1] == '\\')
2185 {
2186 do_quotes = 1;
2187 if (start_in_quotes == MAYBE)
2188 {
2189 /* Do we need to use at_start here? */
2190 inquote = TRUE;
2191 start_in_quotes = TRUE;
2192 }
2193 else if (backwards)
2194 inquote = TRUE;
2195 }
2196 if (pos.lnum > 1)
2197 {
2198 ptr = ml_get(pos.lnum - 1);
2199 if (*ptr && *(ptr + STRLEN(ptr) - 1) == '\\')
2200 {
2201 do_quotes = 1;
2202 if (start_in_quotes == MAYBE)
2203 {
2204 inquote = at_start;
2205 if (inquote)
2206 start_in_quotes = TRUE;
2207 }
2208 else if (!backwards)
2209 inquote = TRUE;
2210 }
2211
2212 /* ml_get() only keeps one line, need to get linep again */
2213 linep = ml_get(pos.lnum);
2214 }
2215 }
2216 }
2217 if (start_in_quotes == MAYBE)
2218 start_in_quotes = FALSE;
2219
2220 /*
2221 * If 'smartmatch' is set:
2222 * Things inside quotes are ignored by setting 'inquote'. If we
2223 * find a quote without a preceding '\' invert 'inquote'. At the
2224 * end of a line not ending in '\' we reset 'inquote'.
2225 *
2226 * In lines with an uneven number of quotes (without preceding '\')
2227 * we do not know which part to ignore. Therefore we only set
2228 * inquote if the number of quotes in a line is even, unless this
2229 * line or the previous one ends in a '\'. Complicated, isn't it?
2230 */
2231 switch (c = linep[pos.col])
2232 {
2233 case NUL:
2234 /* at end of line without trailing backslash, reset inquote */
2235 if (pos.col == 0 || linep[pos.col - 1] != '\\')
2236 {
2237 inquote = FALSE;
2238 start_in_quotes = FALSE;
2239 }
2240 break;
2241
2242 case '"':
2243 /* a quote that is preceded with an odd number of backslashes is
2244 * ignored */
2245 if (do_quotes)
2246 {
2247 int col;
2248
2249 for (col = pos.col - 1; col >= 0; --col)
2250 if (linep[col] != '\\')
2251 break;
2252 if ((((int)pos.col - 1 - col) & 1) == 0)
2253 {
2254 inquote = !inquote;
2255 start_in_quotes = FALSE;
2256 }
2257 }
2258 break;
2259
2260 /*
2261 * If smart matching ('cpoptions' does not contain '%'):
2262 * Skip things in single quotes: 'x' or '\x'. Be careful for single
2263 * single quotes, eg jon's. Things like '\233' or '\x3f' are not
2264 * skipped, there is never a brace in them.
2265 * Ignore this when finding matches for `'.
2266 */
2267 case '\'':
2268 if (!cpo_match && initc != '\'' && findc != '\'')
2269 {
2270 if (backwards)
2271 {
2272 if (pos.col > 1)
2273 {
2274 if (linep[pos.col - 2] == '\'')
2275 {
2276 pos.col -= 2;
2277 break;
2278 }
2279 else if (linep[pos.col - 2] == '\\' &&
2280 pos.col > 2 && linep[pos.col - 3] == '\'')
2281 {
2282 pos.col -= 3;
2283 break;
2284 }
2285 }
2286 }
2287 else if (linep[pos.col + 1]) /* forward search */
2288 {
2289 if (linep[pos.col + 1] == '\\' &&
2290 linep[pos.col + 2] && linep[pos.col + 3] == '\'')
2291 {
2292 pos.col += 3;
2293 break;
2294 }
2295 else if (linep[pos.col + 2] == '\'')
2296 {
2297 pos.col += 2;
2298 break;
2299 }
2300 }
2301 }
2302 /* FALLTHROUGH */
2303
2304 default:
2305 #ifdef FEAT_LISP
2306 /*
2307 * For Lisp skip over backslashed (), {} and [].
2308 * (actually, we skip #\( et al)
2309 */
2310 if (curbuf->b_p_lisp
2311 && vim_strchr((char_u *)"(){}[]", c) != NULL
2312 && pos.col > 1
2313 && check_prevcol(linep, pos.col, '\\', NULL)
2314 && check_prevcol(linep, pos.col - 1, '#', NULL))
2315 break;
2316 #endif
2317
2318 /* Check for match outside of quotes, and inside of
2319 * quotes when the start is also inside of quotes. */
2320 if ((!inquote || start_in_quotes == TRUE)
2321 && (c == initc || c == findc))
2322 {
2323 int col, bslcnt = 0;
2324
2325 if (!cpo_bsl)
2326 {
2327 for (col = pos.col; check_prevcol(linep, col, '\\', &col);)
2328 bslcnt++;
2329 }
2330 /* Only accept a match when 'M' is in 'cpo' or when ecaping is
2331 * what we expect. */
2332 if (cpo_bsl || (bslcnt & 1) == match_escaped)
2333 {
2334 if (c == initc)
2335 count++;
2336 else
2337 {
2338 if (count == 0)
2339 return &pos;
2340 count--;
2341 }
2342 }
2343 }
2344 }
2345 }
2346
2347 if (comment_dir == BACKWARD && count > 0)
2348 {
2349 pos = match_pos;
2350 return &pos;
2351 }
2352 return (pos_T *)NULL; /* never found it */
2353 }
2354
2355 /*
2356 * Check if line[] contains a / / comment.
2357 * Return MAXCOL if not, otherwise return the column.
2358 * TODO: skip strings.
2359 */
2360 static int
2361 check_linecomment(line)
2362 char_u *line;
2363 {
2364 char_u *p;
2365
2366 p = line;
2367 #ifdef FEAT_LISP
2368 /* skip Lispish one-line comments */
2369 if (curbuf->b_p_lisp)
2370 {
2371 if (vim_strchr(p, ';') != NULL) /* there may be comments */
2372 {
2373 int instr = FALSE; /* inside of string */
2374
2375 p = line; /* scan from start */
2376 while ((p = vim_strpbrk(p, (char_u *)"\";")) != NULL)
2377 {
2378 if (*p == '"')
2379 {
2380 if (instr)
2381 {
2382 if (*(p - 1) != '\\') /* skip escaped quote */
2383 instr = FALSE;
2384 }
2385 else if (p == line || ((p - line) >= 2
2386 /* skip #\" form */
2387 && *(p - 1) != '\\' && *(p - 2) != '#'))
2388 instr = TRUE;
2389 }
2390 else if (!instr && ((p - line) < 2
2391 || (*(p - 1) != '\\' && *(p - 2) != '#')))
2392 break; /* found! */
2393 ++p;
2394 }
2395 }
2396 else
2397 p = NULL;
2398 }
2399 else
2400 #endif
2401 while ((p = vim_strchr(p, '/')) != NULL)
2402 {
2403 /* accept a double /, unless it's preceded with * and followed by *,
2404 * because * / / * is an end and start of a C comment */
2405 if (p[1] == '/' && (p == line || p[-1] != '*' || p[2] != '*'))
2406 break;
2407 ++p;
2408 }
2409
2410 if (p == NULL)
2411 return MAXCOL;
2412 return (int)(p - line);
2413 }
2414
2415 /*
2416 * Move cursor briefly to character matching the one under the cursor.
2417 * Used for Insert mode and "r" command.
2418 * Show the match only if it is visible on the screen.
2419 * If there isn't a match, then beep.
2420 */
2421 void
2422 showmatch(c)
2423 int c; /* char to show match for */
2424 {
2425 pos_T *lpos, save_cursor;
2426 pos_T mpos;
2427 colnr_T vcol;
2428 long save_so;
2429 long save_siso;
2430 #ifdef CURSOR_SHAPE
2431 int save_state;
2432 #endif
2433 colnr_T save_dollar_vcol;
2434 char_u *p;
2435
2436 /*
2437 * Only show match for chars in the 'matchpairs' option.
2438 */
2439 /* 'matchpairs' is "x:y,x:y" */
2440 for (p = curbuf->b_p_mps; *p != NUL; p += 2)
2441 {
2442 #ifdef FEAT_RIGHTLEFT
2443 if (*p == c && (curwin->w_p_rl ^ p_ri))
2444 break;
2445 #endif
2446 p += 2;
2447 if (*p == c
2448 #ifdef FEAT_RIGHTLEFT
2449 && !(curwin->w_p_rl ^ p_ri)
2450 #endif
2451 )
2452 break;
2453 if (p[1] != ',')
2454 return;
2455 }
2456
2457 if ((lpos = findmatch(NULL, NUL)) == NULL) /* no match, so beep */
2458 vim_beep();
2459 else if (lpos->lnum >= curwin->w_topline)
2460 {
2461 if (!curwin->w_p_wrap)
2462 getvcol(curwin, lpos, NULL, &vcol, NULL);
2463 if (curwin->w_p_wrap || (vcol >= curwin->w_leftcol
2464 && vcol < curwin->w_leftcol + W_WIDTH(curwin)))
2465 {
2466 mpos = *lpos; /* save the pos, update_screen() may change it */
2467 save_cursor = curwin->w_cursor;
2468 save_so = p_so;
2469 save_siso = p_siso;
2470 /* Handle "$" in 'cpo': If the ')' is typed on top of the "$",
2471 * stop displaying the "$". */
2472 if (dollar_vcol > 0 && dollar_vcol == curwin->w_virtcol)
2473 dollar_vcol = 0;
2474 ++curwin->w_virtcol; /* do display ')' just before "$" */
2475 update_screen(VALID); /* show the new char first */
2476
2477 save_dollar_vcol = dollar_vcol;
2478 #ifdef CURSOR_SHAPE
2479 save_state = State;
2480 State = SHOWMATCH;
2481 ui_cursor_shape(); /* may show different cursor shape */
2482 #endif
2483 curwin->w_cursor = mpos; /* move to matching char */
2484 p_so = 0; /* don't use 'scrolloff' here */
2485 p_siso = 0; /* don't use 'sidescrolloff' here */
2486 showruler(FALSE);
2487 setcursor();
2488 cursor_on(); /* make sure that the cursor is shown */
2489 out_flush();
2490 #ifdef FEAT_GUI
2491 if (gui.in_use)
2492 {
2493 gui_update_cursor(TRUE, FALSE);
2494 gui_mch_flush();
2495 }
2496 #endif
2497 /* Restore dollar_vcol(), because setcursor() may call curs_rows()
2498 * which resets it if the matching position is in a previous line
2499 * and has a higher column number. */
2500 dollar_vcol = save_dollar_vcol;
2501
2502 /*
2503 * brief pause, unless 'm' is present in 'cpo' and a character is
2504 * available.
2505 */
2506 if (vim_strchr(p_cpo, CPO_SHOWMATCH) != NULL)
2507 ui_delay(p_mat * 100L, TRUE);
2508 else if (!char_avail())
2509 ui_delay(p_mat * 100L, FALSE);
2510 curwin->w_cursor = save_cursor; /* restore cursor position */
2511 p_so = save_so;
2512 p_siso = save_siso;
2513 #ifdef CURSOR_SHAPE
2514 State = save_state;
2515 ui_cursor_shape(); /* may show different cursor shape */
2516 #endif
2517 }
2518 }
2519 }
2520
2521 /*
2522 * findsent(dir, count) - Find the start of the next sentence in direction
2523 * "dir" Sentences are supposed to end in ".", "!" or "?" followed by white
2524 * space or a line break. Also stop at an empty line.
2525 * Return OK if the next sentence was found.
2526 */
2527 int
2528 findsent(dir, count)
2529 int dir;
2530 long count;
2531 {
2532 pos_T pos, tpos;
2533 int c;
2534 int (*func) __ARGS((pos_T *));
2535 int startlnum;
2536 int noskip = FALSE; /* do not skip blanks */
2537 int cpo_J;
2538 int found_dot;
2539
2540 pos = curwin->w_cursor;
2541 if (dir == FORWARD)
2542 func = incl;
2543 else
2544 func = decl;
2545
2546 while (count--)
2547 {
2548 /*
2549 * if on an empty line, skip upto a non-empty line
2550 */
2551 if (gchar_pos(&pos) == NUL)
2552 {
2553 do
2554 if ((*func)(&pos) == -1)
2555 break;
2556 while (gchar_pos(&pos) == NUL);
2557 if (dir == FORWARD)
2558 goto found;
2559 }
2560 /*
2561 * if on the start of a paragraph or a section and searching forward,
2562 * go to the next line
2563 */
2564 else if (dir == FORWARD && pos.col == 0 &&
2565 startPS(pos.lnum, NUL, FALSE))
2566 {
2567 if (pos.lnum == curbuf->b_ml.ml_line_count)
2568 return FAIL;
2569 ++pos.lnum;
2570 goto found;
2571 }
2572 else if (dir == BACKWARD)
2573 decl(&pos);
2574
2575 /* go back to the previous non-blank char */
2576 found_dot = FALSE;
2577 while ((c = gchar_pos(&pos)) == ' ' || c == '\t' ||
2578 (dir == BACKWARD && vim_strchr((char_u *)".!?)]\"'", c) != NULL))
2579 {
2580 if (vim_strchr((char_u *)".!?", c) != NULL)
2581 {
2582 /* Only skip over a '.', '!' and '?' once. */
2583 if (found_dot)
2584 break;
2585 found_dot = TRUE;
2586 }
2587 if (decl(&pos) == -1)
2588 break;
2589 /* when going forward: Stop in front of empty line */
2590 if (lineempty(pos.lnum) && dir == FORWARD)
2591 {
2592 incl(&pos);
2593 goto found;
2594 }
2595 }
2596
2597 /* remember the line where the search started */
2598 startlnum = pos.lnum;
2599 cpo_J = vim_strchr(p_cpo, CPO_ENDOFSENT) != NULL;
2600
2601 for (;;) /* find end of sentence */
2602 {
2603 c = gchar_pos(&pos);
2604 if (c == NUL || (pos.col == 0 && startPS(pos.lnum, NUL, FALSE)))
2605 {
2606 if (dir == BACKWARD && pos.lnum != startlnum)
2607 ++pos.lnum;
2608 break;
2609 }
2610 if (c == '.' || c == '!' || c == '?')
2611 {
2612 tpos = pos;
2613 do
2614 if ((c = inc(&tpos)) == -1)
2615 break;
2616 while (vim_strchr((char_u *)")]\"'", c = gchar_pos(&tpos))
2617 != NULL);
2618 if (c == -1 || (!cpo_J && (c == ' ' || c == '\t')) || c == NUL
2619 || (cpo_J && (c == ' ' && inc(&tpos) >= 0
2620 && gchar_pos(&tpos) == ' ')))
2621 {
2622 pos = tpos;
2623 if (gchar_pos(&pos) == NUL) /* skip NUL at EOL */
2624 inc(&pos);
2625 break;
2626 }
2627 }
2628 if ((*func)(&pos) == -1)
2629 {
2630 if (count)
2631 return FAIL;
2632 noskip = TRUE;
2633 break;
2634 }
2635 }
2636 found:
2637 /* skip white space */
2638 while (!noskip && ((c = gchar_pos(&pos)) == ' ' || c == '\t'))
2639 if (incl(&pos) == -1)
2640 break;
2641 }
2642
2643 setpcmark();
2644 curwin->w_cursor = pos;
2645 return OK;
2646 }
2647
2648 /*
2649 * Find the next paragraph or section in direction 'dir'.
2650 * Paragraphs are currently supposed to be separated by empty lines.
2651 * If 'what' is NUL we go to the next paragraph.
2652 * If 'what' is '{' or '}' we go to the next section.
2653 * If 'both' is TRUE also stop at '}'.
2654 * Return TRUE if the next paragraph or section was found.
2655 */
2656 int
2657 findpar(pincl, dir, count, what, both)
2658 int *pincl; /* Return: TRUE if last char is to be included */
2659 int dir;
2660 long count;
2661 int what;
2662 int both;
2663 {
2664 linenr_T curr;
2665 int did_skip; /* TRUE after separating lines have been skipped */
2666 int first; /* TRUE on first line */
2667 int posix = (vim_strchr(p_cpo, CPO_PARA) != NULL);
2668 #ifdef FEAT_FOLDING
2669 linenr_T fold_first; /* first line of a closed fold */
2670 linenr_T fold_last; /* last line of a closed fold */
2671 int fold_skipped; /* TRUE if a closed fold was skipped this
2672 iteration */
2673 #endif
2674
2675 curr = curwin->w_cursor.lnum;
2676
2677 while (count--)
2678 {
2679 did_skip = FALSE;
2680 for (first = TRUE; ; first = FALSE)
2681 {
2682 if (*ml_get(curr) != NUL)
2683 did_skip = TRUE;
2684
2685 #ifdef FEAT_FOLDING
2686 /* skip folded lines */
2687 fold_skipped = FALSE;
2688 if (first && hasFolding(curr, &fold_first, &fold_last))
2689 {
2690 curr = ((dir > 0) ? fold_last : fold_first) + dir;
2691 fold_skipped = TRUE;
2692 }
2693 #endif
2694
2695 /* POSIX has it's own ideas of what a paragraph boundary is and it
2696 * doesn't match historical Vi: It also stops at a "{" in the
2697 * first column and at an empty line. */
2698 if (!first && did_skip && (startPS(curr, what, both)
2699 || (posix && what == NUL && *ml_get(curr) == '{')))
2700 break;
2701
2702 #ifdef FEAT_FOLDING
2703 if (fold_skipped)
2704 curr -= dir;
2705 #endif
2706 if ((curr += dir) < 1 || curr > curbuf->b_ml.ml_line_count)
2707 {
2708 if (count)
2709 return FALSE;
2710 curr -= dir;
2711 break;
2712 }
2713 }
2714 }
2715 setpcmark();
2716 if (both && *ml_get(curr) == '}') /* include line with '}' */
2717 ++curr;
2718 curwin->w_cursor.lnum = curr;
2719 if (curr == curbuf->b_ml.ml_line_count && what != '}')
2720 {
2721 if ((curwin->w_cursor.col = (colnr_T)STRLEN(ml_get(curr))) != 0)
2722 {
2723 --curwin->w_cursor.col;
2724 *pincl = TRUE;
2725 }
2726 }
2727 else
2728 curwin->w_cursor.col = 0;
2729 return TRUE;
2730 }
2731
2732 /*
2733 * check if the string 's' is a nroff macro that is in option 'opt'
2734 */
2735 static int
2736 inmacro(opt, s)
2737 char_u *opt;
2738 char_u *s;
2739 {
2740 char_u *macro;
2741
2742 for (macro = opt; macro[0]; ++macro)
2743 {
2744 /* Accept two characters in the option being equal to two characters
2745 * in the line. A space in the option matches with a space in the
2746 * line or the line having ended. */
2747 if ( (macro[0] == s[0]
2748 || (macro[0] == ' '
2749 && (s[0] == NUL || s[0] == ' ')))
2750 && (macro[1] == s[1]
2751 || ((macro[1] == NUL || macro[1] == ' ')
2752 && (s[0] == NUL || s[1] == NUL || s[1] == ' '))))
2753 break;
2754 ++macro;
2755 if (macro[0] == NUL)
2756 break;
2757 }
2758 return (macro[0] != NUL);
2759 }
2760
2761 /*
2762 * startPS: return TRUE if line 'lnum' is the start of a section or paragraph.
2763 * If 'para' is '{' or '}' only check for sections.
2764 * If 'both' is TRUE also stop at '}'
2765 */
2766 int
2767 startPS(lnum, para, both)
2768 linenr_T lnum;
2769 int para;
2770 int both;
2771 {
2772 char_u *s;
2773
2774 s = ml_get(lnum);
2775 if (*s == para || *s == '\f' || (both && *s == '}'))
2776 return TRUE;
2777 if (*s == '.' && (inmacro(p_sections, s + 1) ||
2778 (!para && inmacro(p_para, s + 1))))
2779 return TRUE;
2780 return FALSE;
2781 }
2782
2783 /*
2784 * The following routines do the word searches performed by the 'w', 'W',
2785 * 'b', 'B', 'e', and 'E' commands.
2786 */
2787
2788 /*
2789 * To perform these searches, characters are placed into one of three
2790 * classes, and transitions between classes determine word boundaries.
2791 *
2792 * The classes are:
2793 *
2794 * 0 - white space
2795 * 1 - punctuation
2796 * 2 or higher - keyword characters (letters, digits and underscore)
2797 */
2798
2799 static int cls_bigword; /* TRUE for "W", "B" or "E" */
2800
2801 /*
2802 * cls() - returns the class of character at curwin->w_cursor
2803 *
2804 * If a 'W', 'B', or 'E' motion is being done (cls_bigword == TRUE), chars
2805 * from class 2 and higher are reported as class 1 since only white space
2806 * boundaries are of interest.
2807 */
2808 static int
2809 cls()
2810 {
2811 int c;
2812
2813 c = gchar_cursor();
2814 #ifdef FEAT_FKMAP /* when 'akm' (Farsi mode), take care of Farsi blank */
2815 if (p_altkeymap && c == F_BLANK)
2816 return 0;
2817 #endif
2818 if (c == ' ' || c == '\t' || c == NUL)
2819 return 0;
2820 #ifdef FEAT_MBYTE
2821 if (enc_dbcs != 0 && c > 0xFF)
2822 {
2823 /* If cls_bigword, report multi-byte chars as class 1. */
2824 if (enc_dbcs == DBCS_KOR && cls_bigword)
2825 return 1;
2826
2827 /* process code leading/trailing bytes */
2828 return dbcs_class(((unsigned)c >> 8), (c & 0xFF));
2829 }
2830 if (enc_utf8)
2831 {
2832 c = utf_class(c);
2833 if (c != 0 && cls_bigword)
2834 return 1;
2835 return c;
2836 }
2837 #endif
2838
2839 /* If cls_bigword is TRUE, report all non-blanks as class 1. */
2840 if (cls_bigword)
2841 return 1;
2842
2843 if (vim_iswordc(c))
2844 return 2;
2845 return 1;
2846 }
2847
2848
2849 /*
2850 * fwd_word(count, type, eol) - move forward one word
2851 *
2852 * Returns FAIL if the cursor was already at the end of the file.
2853 * If eol is TRUE, last word stops at end of line (for operators).
2854 */
2855 int
2856 fwd_word(count, bigword, eol)
2857 long count;
2858 int bigword; /* "W", "E" or "B" */
2859 int eol;
2860 {
2861 int sclass; /* starting class */
2862 int i;
2863 int last_line;
2864
2865 #ifdef FEAT_VIRTUALEDIT
2866 curwin->w_cursor.coladd = 0;
2867 #endif
2868 cls_bigword = bigword;
2869 while (--count >= 0)
2870 {
2871 #ifdef FEAT_FOLDING
2872 /* When inside a range of folded lines, move to the last char of the
2873 * last line. */
2874 if (hasFolding(curwin->w_cursor.lnum, NULL, &curwin->w_cursor.lnum))
2875 coladvance((colnr_T)MAXCOL);
2876 #endif
2877 sclass = cls();
2878
2879 /*
2880 * We always move at least one character, unless on the last
2881 * character in the buffer.
2882 */
2883 last_line = (curwin->w_cursor.lnum == curbuf->b_ml.ml_line_count);
2884 i = inc_cursor();
2885 if (i == -1 || (i >= 1 && last_line)) /* started at last char in file */
2886 return FAIL;
2887 if (i >= 1 && eol && count == 0) /* started at last char in line */
2888 return OK;
2889
2890 /*
2891 * Go one char past end of current word (if any)
2892 */
2893 if (sclass != 0)
2894 while (cls() == sclass)
2895 {
2896 i = inc_cursor();
2897 if (i == -1 || (i >= 1 && eol && count == 0))
2898 return OK;
2899 }
2900
2901 /*
2902 * go to next non-white
2903 */
2904 while (cls() == 0)
2905 {
2906 /*
2907 * We'll stop if we land on a blank line
2908 */
2909 if (curwin->w_cursor.col == 0 && *ml_get_curline() == NUL)
2910 break;
2911
2912 i = inc_cursor();
2913 if (i == -1 || (i >= 1 && eol && count == 0))
2914 return OK;
2915 }
2916 }
2917 return OK;
2918 }
2919
2920 /*
2921 * bck_word() - move backward 'count' words
2922 *
2923 * If stop is TRUE and we are already on the start of a word, move one less.
2924 *
2925 * Returns FAIL if top of the file was reached.
2926 */
2927 int
2928 bck_word(count, bigword, stop)
2929 long count;
2930 int bigword;
2931 int stop;
2932 {
2933 int sclass; /* starting class */
2934
2935 #ifdef FEAT_VIRTUALEDIT
2936 curwin->w_cursor.coladd = 0;
2937 #endif
2938 cls_bigword = bigword;
2939 while (--count >= 0)
2940 {
2941 #ifdef FEAT_FOLDING
2942 /* When inside a range of folded lines, move to the first char of the
2943 * first line. */
2944 if (hasFolding(curwin->w_cursor.lnum, &curwin->w_cursor.lnum, NULL))
2945 curwin->w_cursor.col = 0;
2946 #endif
2947 sclass = cls();
2948 if (dec_cursor() == -1) /* started at start of file */
2949 return FAIL;
2950
2951 if (!stop || sclass == cls() || sclass == 0)
2952 {
2953 /*
2954 * Skip white space before the word.
2955 * Stop on an empty line.
2956 */
2957 while (cls() == 0)
2958 {
2959 if (curwin->w_cursor.col == 0
2960 && lineempty(curwin->w_cursor.lnum))
2961 goto finished;
2962 if (dec_cursor() == -1) /* hit start of file, stop here */
2963 return OK;
2964 }
2965
2966 /*
2967 * Move backward to start of this word.
2968 */
2969 if (skip_chars(cls(), BACKWARD))
2970 return OK;
2971 }
2972
2973 inc_cursor(); /* overshot - forward one */
2974 finished:
2975 stop = FALSE;
2976 }
2977 return OK;
2978 }
2979
2980 /*
2981 * end_word() - move to the end of the word
2982 *
2983 * There is an apparent bug in the 'e' motion of the real vi. At least on the
2984 * System V Release 3 version for the 80386. Unlike 'b' and 'w', the 'e'
2985 * motion crosses blank lines. When the real vi crosses a blank line in an
2986 * 'e' motion, the cursor is placed on the FIRST character of the next
2987 * non-blank line. The 'E' command, however, works correctly. Since this
2988 * appears to be a bug, I have not duplicated it here.
2989 *
2990 * Returns FAIL if end of the file was reached.
2991 *
2992 * If stop is TRUE and we are already on the end of a word, move one less.
2993 * If empty is TRUE stop on an empty line.
2994 */
2995 int
2996 end_word(count, bigword, stop, empty)
2997 long count;
2998 int bigword;
2999 int stop;
3000 int empty;
3001 {
3002 int sclass; /* starting class */
3003
3004 #ifdef FEAT_VIRTUALEDIT
3005 curwin->w_cursor.coladd = 0;
3006 #endif
3007 cls_bigword = bigword;
3008 while (--count >= 0)
3009 {
3010 #ifdef FEAT_FOLDING
3011 /* When inside a range of folded lines, move to the last char of the
3012 * last line. */
3013 if (hasFolding(curwin->w_cursor.lnum, NULL, &curwin->w_cursor.lnum))
3014 coladvance((colnr_T)MAXCOL);
3015 #endif
3016 sclass = cls();
3017 if (inc_cursor() == -1)
3018 return FAIL;
3019
3020 /*
3021 * If we're in the middle of a word, we just have to move to the end
3022 * of it.
3023 */
3024 if (cls() == sclass && sclass != 0)
3025 {
3026 /*
3027 * Move forward to end of the current word
3028 */
3029 if (skip_chars(sclass, FORWARD))
3030 return FAIL;
3031 }
3032 else if (!stop || sclass == 0)
3033 {
3034 /*
3035 * We were at the end of a word. Go to the end of the next word.
3036 * First skip white space, if 'empty' is TRUE, stop at empty line.
3037 */
3038 while (cls() == 0)
3039 {
3040 if (empty && curwin->w_cursor.col == 0
3041 && lineempty(curwin->w_cursor.lnum))
3042 goto finished;
3043 if (inc_cursor() == -1) /* hit end of file, stop here */
3044 return FAIL;
3045 }
3046
3047 /*
3048 * Move forward to the end of this word.
3049 */
3050 if (skip_chars(cls(), FORWARD))
3051 return FAIL;
3052 }
3053 dec_cursor(); /* overshot - one char backward */
3054 finished:
3055 stop = FALSE; /* we move only one word less */
3056 }
3057 return OK;
3058 }
3059
3060 /*
3061 * Move back to the end of the word.
3062 *
3063 * Returns FAIL if start of the file was reached.
3064 */
3065 int
3066 bckend_word(count, bigword, eol)
3067 long count;
3068 int bigword; /* TRUE for "B" */
3069 int eol; /* TRUE: stop at end of line. */
3070 {
3071 int sclass; /* starting class */
3072 int i;
3073
3074 #ifdef FEAT_VIRTUALEDIT
3075 curwin->w_cursor.coladd = 0;
3076 #endif
3077 cls_bigword = bigword;
3078 while (--count >= 0)
3079 {
3080 sclass = cls();
3081 if ((i = dec_cursor()) == -1)
3082 return FAIL;
3083 if (eol && i == 1)
3084 return OK;
3085
3086 /*
3087 * Move backward to before the start of this word.
3088 */
3089 if (sclass != 0)
3090 {
3091 while (cls() == sclass)
3092 if ((i = dec_cursor()) == -1 || (eol && i == 1))
3093 return OK;
3094 }
3095
3096 /*
3097 * Move backward to end of the previous word
3098 */
3099 while (cls() == 0)
3100 {
3101 if (curwin->w_cursor.col == 0 && lineempty(curwin->w_cursor.lnum))
3102 break;
3103 if ((i = dec_cursor()) == -1 || (eol && i == 1))
3104 return OK;
3105 }
3106 }
3107 return OK;
3108 }
3109
3110 /*
3111 * Skip a row of characters of the same class.
3112 * Return TRUE when end-of-file reached, FALSE otherwise.
3113 */
3114 static int
3115 skip_chars(cclass, dir)
3116 int cclass;
3117 int dir;
3118 {
3119 while (cls() == cclass)
3120 if ((dir == FORWARD ? inc_cursor() : dec_cursor()) == -1)
3121 return TRUE;
3122 return FALSE;
3123 }
3124
3125 #ifdef FEAT_TEXTOBJ
3126 /*
3127 * Go back to the start of the word or the start of white space
3128 */
3129 static void
3130 back_in_line()
3131 {
3132 int sclass; /* starting class */
3133
3134 sclass = cls();
3135 for (;;)
3136 {
3137 if (curwin->w_cursor.col == 0) /* stop at start of line */
3138 break;
3139 dec_cursor();
3140 if (cls() != sclass) /* stop at start of word */
3141 {
3142 inc_cursor();
3143 break;
3144 }
3145 }
3146 }
3147
3148 static void
3149 find_first_blank(posp)
3150 pos_T *posp;
3151 {
3152 int c;
3153
3154 while (decl(posp) != -1)
3155 {
3156 c = gchar_pos(posp);
3157 if (!vim_iswhite(c))
3158 {
3159 incl(posp);
3160 break;
3161 }
3162 }
3163 }
3164
3165 /*
3166 * Skip count/2 sentences and count/2 separating white spaces.
3167 */
3168 static void
3169 findsent_forward(count, at_start_sent)
3170 long count;
3171 int at_start_sent; /* cursor is at start of sentence */
3172 {
3173 while (count--)
3174 {
3175 findsent(FORWARD, 1L);
3176 if (at_start_sent)
3177 find_first_blank(&curwin->w_cursor);
3178 if (count == 0 || at_start_sent)
3179 decl(&curwin->w_cursor);
3180 at_start_sent = !at_start_sent;
3181 }
3182 }
3183
3184 /*
3185 * Find word under cursor, cursor at end.
3186 * Used while an operator is pending, and in Visual mode.
3187 */
3188 int
3189 current_word(oap, count, include, bigword)
3190 oparg_T *oap;
3191 long count;
3192 int include; /* TRUE: include word and white space */
3193 int bigword; /* FALSE == word, TRUE == WORD */
3194 {
3195 pos_T start_pos;
3196 pos_T pos;
3197 int inclusive = TRUE;
3198 int include_white = FALSE;
3199
3200 cls_bigword = bigword;
3201 clearpos(&start_pos);
3202
3203 #ifdef FEAT_VISUAL
3204 /* Correct cursor when 'selection' is exclusive */
3205 if (VIsual_active && *p_sel == 'e' && lt(VIsual, curwin->w_cursor))
3206 dec_cursor();
3207
3208 /*
3209 * When Visual mode is not active, or when the VIsual area is only one
3210 * character, select the word and/or white space under the cursor.
3211 */
3212 if (!VIsual_active || equalpos(curwin->w_cursor, VIsual))
3213 #endif
3214 {
3215 /*
3216 * Go to start of current word or white space.
3217 */
3218 back_in_line();
3219 start_pos = curwin->w_cursor;
3220
3221 /*
3222 * If the start is on white space, and white space should be included
3223 * (" word"), or start is not on white space, and white space should
3224 * not be included ("word"), find end of word.
3225 */
3226 if ((cls() == 0) == include)
3227 {
3228 if (end_word(1L, bigword, TRUE, TRUE) == FAIL)
3229 return FAIL;
3230 }
3231 else
3232 {
3233 /*
3234 * If the start is not on white space, and white space should be
3235 * included ("word "), or start is on white space and white
3236 * space should not be included (" "), find start of word.
3237 * If we end up in the first column of the next line (single char
3238 * word) back up to end of the line.
3239 */
3240 fwd_word(1L, bigword, TRUE);
3241 if (curwin->w_cursor.col == 0)
3242 decl(&curwin->w_cursor);
3243 else
3244 oneleft();
3245
3246 if (include)
3247 include_white = TRUE;
3248 }
3249
3250 #ifdef FEAT_VISUAL
3251 if (VIsual_active)
3252 {
3253 /* should do something when inclusive == FALSE ! */
3254 VIsual = start_pos;
3255 redraw_curbuf_later(INVERTED); /* update the inversion */
3256 }
3257 else
3258 #endif
3259 {
3260 oap->start = start_pos;
3261 oap->motion_type = MCHAR;
3262 }
3263 --count;
3264 }
3265
3266 /*
3267 * When count is still > 0, extend with more objects.
3268 */
3269 while (count > 0)
3270 {
3271 inclusive = TRUE;
3272 #ifdef FEAT_VISUAL
3273 if (VIsual_active && lt(curwin->w_cursor, VIsual))
3274 {
3275 /*
3276 * In Visual mode, with cursor at start: move cursor back.
3277 */
3278 if (decl(&curwin->w_cursor) == -1)
3279 return FAIL;
3280 if (include != (cls() != 0))
3281 {
3282 if (bck_word(1L, bigword, TRUE) == FAIL)
3283 return FAIL;
3284 }
3285 else
3286 {
3287 if (bckend_word(1L, bigword, TRUE) == FAIL)
3288 return FAIL;
3289 (void)incl(&curwin->w_cursor);
3290 }
3291 }
3292 else
3293 #endif
3294 {
3295 /*
3296 * Move cursor forward one word and/or white area.
3297 */
3298 if (incl(&curwin->w_cursor) == -1)
3299 return FAIL;
3300 if (include != (cls() == 0))
3301 {
3302 if (fwd_word(1L, bigword, TRUE) == FAIL && count > 1)
3303 return FAIL;
3304 /*
3305 * If end is just past a new-line, we don't want to include
3306 * the first character on the line.
3307 * Put cursor on last char of white.
3308 */
3309 if (oneleft() == FAIL)
3310 inclusive = FALSE;
3311 }
3312 else
3313 {
3314 if (end_word(1L, bigword, TRUE, TRUE) == FAIL)
3315 return FAIL;
3316 }
3317 }
3318 --count;
3319 }
3320
3321 if (include_white && (cls() != 0
3322 || (curwin->w_cursor.col == 0 && !inclusive)))
3323 {
3324 /*
3325 * If we don't include white space at the end, move the start
3326 * to include some white space there. This makes "daw" work
3327 * better on the last word in a sentence (and "2daw" on last-but-one
3328 * word). Also when "2daw" deletes "word." at the end of the line
3329 * (cursor is at start of next line).
3330 * But don't delete white space at start of line (indent).
3331 */
3332 pos = curwin->w_cursor; /* save cursor position */
3333 curwin->w_cursor = start_pos;
3334 if (oneleft() == OK)
3335 {
3336 back_in_line();
3337 if (cls() == 0 && curwin->w_cursor.col > 0)
3338 {
3339 #ifdef FEAT_VISUAL
3340 if (VIsual_active)
3341 VIsual = curwin->w_cursor;
3342 else
3343 #endif
3344 oap->start = curwin->w_cursor;
3345 }
3346 }
3347 curwin->w_cursor = pos; /* put cursor back at end */
3348 }
3349
3350 #ifdef FEAT_VISUAL
3351 if (VIsual_active)
3352 {
3353 if (*p_sel == 'e' && inclusive && ltoreq(VIsual, curwin->w_cursor))
3354 inc_cursor();
3355 if (VIsual_mode == 'V')
3356 {
3357 VIsual_mode = 'v';
3358 redraw_cmdline = TRUE; /* show mode later */
3359 }
3360 }
3361 else
3362 #endif
3363 oap->inclusive = inclusive;
3364
3365 return OK;
3366 }
3367
3368 /*
3369 * Find sentence(s) under the cursor, cursor at end.
3370 * When Visual active, extend it by one or more sentences.
3371 */
3372 int
3373 current_sent(oap, count, include)
3374 oparg_T *oap;
3375 long count;
3376 int include;
3377 {
3378 pos_T start_pos;
3379 pos_T pos;
3380 int start_blank;
3381 int c;
3382 int at_start_sent;
3383 long ncount;
3384
3385 start_pos = curwin->w_cursor;
3386 pos = start_pos;
3387 findsent(FORWARD, 1L); /* Find start of next sentence. */
3388
3389 #ifdef FEAT_VISUAL
3390 /*
3391 * When visual area is bigger than one character: Extend it.
3392 */
3393 if (VIsual_active && !equalpos(start_pos, VIsual))
3394 {
3395 extend:
3396 if (lt(start_pos, VIsual))
3397 {
3398 /*
3399 * Cursor at start of Visual area.
3400 * Find out where we are:
3401 * - in the white space before a sentence
3402 * - in a sentence or just after it
3403 * - at the start of a sentence
3404 */
3405 at_start_sent = TRUE;
3406 decl(&pos);
3407 while (lt(pos, curwin->w_cursor))
3408 {
3409 c = gchar_pos(&pos);
3410 if (!vim_iswhite(c))
3411 {
3412 at_start_sent = FALSE;
3413 break;
3414 }
3415 incl(&pos);
3416 }
3417 if (!at_start_sent)
3418 {
3419 findsent(BACKWARD, 1L);
3420 if (equalpos(curwin->w_cursor, start_pos))
3421 at_start_sent = TRUE; /* exactly at start of sentence */
3422 else
3423 /* inside a sentence, go to its end (start of next) */
3424 findsent(FORWARD, 1L);
3425 }
3426 if (include) /* "as" gets twice as much as "is" */
3427 count *= 2;
3428 while (count--)
3429 {
3430 if (at_start_sent)
3431 find_first_blank(&curwin->w_cursor);
3432 c = gchar_cursor();
3433 if (!at_start_sent || (!include && !vim_iswhite(c)))
3434 findsent(BACKWARD, 1L);
3435 at_start_sent = !at_start_sent;
3436 }
3437 }
3438 else
3439 {
3440 /*
3441 * Cursor at end of Visual area.
3442 * Find out where we are:
3443 * - just before a sentence
3444 * - just before or in the white space before a sentence
3445 * - in a sentence
3446 */
3447 incl(&pos);
3448 at_start_sent = TRUE;
3449 if (!equalpos(pos, curwin->w_cursor)) /* not just before a sentence */
3450 {
3451 at_start_sent = FALSE;
3452 while (lt(pos, curwin->w_cursor))
3453 {
3454 c = gchar_pos(&pos);
3455 if (!vim_iswhite(c))
3456 {
3457 at_start_sent = TRUE;
3458 break;
3459 }
3460 incl(&pos);
3461 }
3462 if (at_start_sent) /* in the sentence */
3463 findsent(BACKWARD, 1L);
3464 else /* in/before white before a sentence */
3465 curwin->w_cursor = start_pos;
3466 }
3467
3468 if (include) /* "as" gets twice as much as "is" */
3469 count *= 2;
3470 findsent_forward(count, at_start_sent);
3471 if (*p_sel == 'e')
3472 ++curwin->w_cursor.col;
3473 }
3474 return OK;
3475 }
3476 #endif
3477
3478 /*
3479 * If cursor started on blank, check if it is just before the start of the
3480 * next sentence.
3481 */
3482 while (c = gchar_pos(&pos), vim_iswhite(c)) /* vim_iswhite() is a macro */
3483 incl(&pos);
3484 if (equalpos(pos, curwin->w_cursor))
3485 {
3486 start_blank = TRUE;
3487 find_first_blank(&start_pos); /* go back to first blank */
3488 }
3489 else
3490 {
3491 start_blank = FALSE;
3492 findsent(BACKWARD, 1L);
3493 start_pos = curwin->w_cursor;
3494 }
3495 if (include)
3496 ncount = count * 2;
3497 else
3498 {
3499 ncount = count;
3500 if (start_blank)
3501 --ncount;
3502 }
3503 if (ncount > 0)
3504 findsent_forward(ncount, TRUE);
3505 else
3506 decl(&curwin->w_cursor);
3507
3508 if (include)
3509 {
3510 /*
3511 * If the blank in front of the sentence is included, exclude the
3512 * blanks at the end of the sentence, go back to the first blank.
3513 * If there are no trailing blanks, try to include leading blanks.
3514 */
3515 if (start_blank)
3516 {
3517 find_first_blank(&curwin->w_cursor);
3518 c = gchar_pos(&curwin->w_cursor); /* vim_iswhite() is a macro */
3519 if (vim_iswhite(c))
3520 decl(&curwin->w_cursor);
3521 }
3522 else if (c = gchar_cursor(), !vim_iswhite(c))
3523 find_first_blank(&start_pos);
3524 }
3525
3526 #ifdef FEAT_VISUAL
3527 if (VIsual_active)
3528 {
3529 /* avoid getting stuck with "is" on a single space before a sent. */
3530 if (equalpos(start_pos, curwin->w_cursor))
3531 goto extend;
3532 if (*p_sel == 'e')
3533 ++curwin->w_cursor.col;
3534 VIsual = start_pos;
3535 VIsual_mode = 'v';
3536 redraw_curbuf_later(INVERTED); /* update the inversion */
3537 }
3538 else
3539 #endif
3540 {
3541 /* include a newline after the sentence, if there is one */
3542 if (incl(&curwin->w_cursor) == -1)
3543 oap->inclusive = TRUE;
3544 else
3545 oap->inclusive = FALSE;
3546 oap->start = start_pos;
3547 oap->motion_type = MCHAR;
3548 }
3549 return OK;
3550 }
3551
3552 /*
3553 * Find block under the cursor, cursor at end.
3554 * "what" and "other" are two matching parenthesis/paren/etc.
3555 */
3556 int
3557 current_block(oap, count, include, what, other)
3558 oparg_T *oap;
3559 long count;
3560 int include; /* TRUE == include white space */
3561 int what; /* '(', '{', etc. */
3562 int other; /* ')', '}', etc. */
3563 {
3564 pos_T old_pos;
3565 pos_T *pos = NULL;
3566 pos_T start_pos;
3567 pos_T *end_pos;
3568 pos_T old_start, old_end;
3569 char_u *save_cpo;
3570 int sol = FALSE; /* '{' at start of line */
3571
3572 old_pos = curwin->w_cursor;
3573 old_end = curwin->w_cursor; /* remember where we started */
3574 old_start = old_end;
3575
3576 /*
3577 * If we start on '(', '{', ')', '}', etc., use the whole block inclusive.
3578 */
3579 #ifdef FEAT_VISUAL
3580 if (!VIsual_active || equalpos(VIsual, curwin->w_cursor))
3581 #endif
3582 {
3583 setpcmark();
3584 if (what == '{') /* ignore indent */
3585 while (inindent(1))
3586 if (inc_cursor() != 0)
3587 break;
3588 if (gchar_cursor() == what)
3589 /* cursor on '(' or '{', move cursor just after it */
3590 ++curwin->w_cursor.col;
3591 }
3592 #ifdef FEAT_VISUAL
3593 else if (lt(VIsual, curwin->w_cursor))
3594 {
3595 old_start = VIsual;
3596 curwin->w_cursor = VIsual; /* cursor at low end of Visual */
3597 }
3598 else
3599 old_end = VIsual;
3600 #endif
3601
3602 /*
3603 * Search backwards for unclosed '(', '{', etc..
3604 * Put this position in start_pos.
3605 * Ignore quotes here.
3606 */
3607 save_cpo = p_cpo;
3608 p_cpo = (char_u *)"%";
3609 while (count-- > 0)
3610 {
3611 if ((pos = findmatch(NULL, what)) == NULL)
3612 break;
3613 curwin->w_cursor = *pos;
3614 start_pos = *pos; /* the findmatch for end_pos will overwrite *pos */
3615 }
3616 p_cpo = save_cpo;
3617
3618 /*
3619 * Search for matching ')', '}', etc.
3620 * Put this position in curwin->w_cursor.
3621 */
3622 if (pos == NULL || (end_pos = findmatch(NULL, other)) == NULL)
3623 {
3624 curwin->w_cursor = old_pos;
3625 return FAIL;
3626 }
3627 curwin->w_cursor = *end_pos;
3628
3629 /*
3630 * Try to exclude the '(', '{', ')', '}', etc. when "include" is FALSE.
3631 * If the ending '}' is only preceded by indent, skip that indent.
3632 * But only if the resulting area is not smaller than what we started with.
3633 */
3634 while (!include)
3635 {
3636 incl(&start_pos);
3637 sol = (curwin->w_cursor.col == 0);
3638 decl(&curwin->w_cursor);
3639 if (what == '{')
3640 while (inindent(1))
3641 {
3642 sol = TRUE;
3643 if (decl(&curwin->w_cursor) != 0)
3644 break;
3645 }
3646 #ifdef FEAT_VISUAL
3647 /*
3648 * In Visual mode, when the resulting area is not bigger than what we
3649 * started with, extend it to the next block, and then exclude again.
3650 */
3651 if (!lt(start_pos, old_start) && !lt(old_end, curwin->w_cursor)
3652 && VIsual_active)
3653 {
3654 curwin->w_cursor = old_start;
3655 decl(&curwin->w_cursor);
3656 if ((pos = findmatch(NULL, what)) == NULL)
3657 {
3658 curwin->w_cursor = old_pos;
3659 return FAIL;
3660 }
3661 start_pos = *pos;
3662 curwin->w_cursor = *pos;
3663 if ((end_pos = findmatch(NULL, other)) == NULL)
3664 {
3665 curwin->w_cursor = old_pos;
3666 return FAIL;
3667 }
3668 curwin->w_cursor = *end_pos;
3669 }
3670 else
3671 #endif
3672 break;
3673 }
3674
3675 #ifdef FEAT_VISUAL
3676 if (VIsual_active)
3677 {
3678 if (*p_sel == 'e')
3679 ++curwin->w_cursor.col;
3680 if (sol && gchar_cursor() != NUL)
3681 inc(&curwin->w_cursor); /* include the line break */
3682 VIsual = start_pos;
3683 VIsual_mode = 'v';
3684 redraw_curbuf_later(INVERTED); /* update the inversion */
3685 showmode();
3686 }
3687 else
3688 #endif
3689 {
3690 oap->start = start_pos;
3691 oap->motion_type = MCHAR;
3692 oap->inclusive = FALSE;
3693 if (sol)
3694 incl(&curwin->w_cursor);
3695 else if (ltoreq(start_pos, curwin->w_cursor))
3696 /* Include the character under the cursor. */
3697 oap->inclusive = TRUE;
3698 else
3699 /* End is before the start (no text in between <>, [], etc.): don't
3700 * operate on any text. */
3701 curwin->w_cursor = start_pos;
3702 }
3703
3704 return OK;
3705 }
3706
3707 static int in_html_tag __ARGS((int));
3708
3709 /*
3710 * Return TRUE if the cursor is on a "<aaa>" tag. Ignore "<aaa/>".
3711 * When "end_tag" is TRUE return TRUE if the cursor is on "</aaa>".
3712 */
3713 static int
3714 in_html_tag(end_tag)
3715 int end_tag;
3716 {
3717 char_u *line = ml_get_curline();
3718 char_u *p;
3719 int c;
3720 int lc = NUL;
3721 pos_T pos;
3722
3723 #ifdef FEAT_MBYTE
3724 if (enc_dbcs)
3725 {
3726 char_u *lp = NULL;
3727
3728 /* We search forward until the cursor, because searching backwards is
3729 * very slow for DBCS encodings. */
3730 for (p = line; p < line + curwin->w_cursor.col; mb_ptr_adv(p))
3731 if (*p == '>' || *p == '<')
3732 {
3733 lc = *p;
3734 lp = p;
3735 }
3736 if (*p != '<') /* check for '<' under cursor */
3737 {
3738 if (lc != '<')
3739 return FALSE;
3740 p = lp;
3741 }
3742 }
3743 else
3744 #endif
3745 {
3746 for (p = line + curwin->w_cursor.col; p > line; )
3747 {
3748 if (*p == '<') /* find '<' under/before cursor */
3749 break;
3750 mb_ptr_back(line, p);
3751 if (*p == '>') /* find '>' before cursor */
3752 break;
3753 }
3754 if (*p != '<')
3755 return FALSE;
3756 }
3757
3758 pos.lnum = curwin->w_cursor.lnum;
3759 pos.col = (colnr_T)(p - line);
3760
3761 mb_ptr_adv(p);
3762 if (end_tag)
3763 /* check that there is a '/' after the '<' */
3764 return *p == '/';
3765
3766 /* check that there is no '/' after the '<' */
3767 if (*p == '/')
3768 return FALSE;
3769
3770 /* check that the matching '>' is not preceded by '/' */
3771 for (;;)
3772 {
3773 if (inc(&pos) < 0)
3774 return FALSE;
3775 c = *ml_get_pos(&pos);
3776 if (c == '>')
3777 break;
3778 lc = c;
3779 }
3780 return lc != '/';
3781 }
3782
3783 /*
3784 * Find tag block under the cursor, cursor at end.
3785 */
3786 int
3787 current_tagblock(oap, count_arg, include)
3788 oparg_T *oap;
3789 long count_arg;
3790 int include; /* TRUE == include white space */
3791 {
3792 long count = count_arg;
3793 long n;
3794 pos_T old_pos;
3795 pos_T start_pos;
3796 pos_T end_pos;
3797 pos_T old_start, old_end;
3798 char_u *spat, *epat;
3799 char_u *p;
3800 char_u *cp;
3801 int len;
3802 int r;
3803 int do_include = include;
3804 int save_p_ws = p_ws;
3805 int retval = FAIL;
3806
3807 p_ws = FALSE;
3808
3809 old_pos = curwin->w_cursor;
3810 old_end = curwin->w_cursor; /* remember where we started */
3811 old_start = old_end;
3812 #ifdef FEAT_VISUAL
3813 if (!VIsual_active || *p_sel == 'e')
3814 #endif
3815 decl(&old_end); /* old_end is inclusive */
3816
3817 /*
3818 * If we start on "<aaa>" select that block.
3819 */
3820 #ifdef FEAT_VISUAL
3821 if (!VIsual_active || equalpos(VIsual, curwin->w_cursor))
3822 #endif
3823 {
3824 setpcmark();
3825
3826 /* ignore indent */
3827 while (inindent(1))
3828 if (inc_cursor() != 0)
3829 break;
3830
3831 if (in_html_tag(FALSE))
3832 {
3833 /* cursor on start tag, move to its '>' */
3834 while (*ml_get_cursor() != '>')
3835 if (inc_cursor() < 0)
3836 break;
3837 }
3838 else if (in_html_tag(TRUE))
3839 {
3840 /* cursor on end tag, move to just before it */
3841 while (*ml_get_cursor() != '<')
3842 if (dec_cursor() < 0)
3843 break;
3844 dec_cursor();
3845 old_end = curwin->w_cursor;
3846 }
3847 }
3848 #ifdef FEAT_VISUAL
3849 else if (lt(VIsual, curwin->w_cursor))
3850 {
3851 old_start = VIsual;
3852 curwin->w_cursor = VIsual; /* cursor at low end of Visual */
3853 }
3854 else
3855 old_end = VIsual;
3856 #endif
3857
3858 again:
3859 /*
3860 * Search backwards for unclosed "<aaa>".
3861 * Put this position in start_pos.
3862 */
3863 for (n = 0; n < count; ++n)
3864 {
3865 if (do_searchpair((char_u *)"<[^ \t>/!]\\+\\%(\\_s\\_[^>]\\{-}[^/]>\\|$\\|\\_s\\=>\\)",
3866 (char_u *)"",
3867 (char_u *)"</[^>]*>", BACKWARD, (char_u *)"", 0,
3868 NULL, (linenr_T)0, 0L) <= 0)
3869 {
3870 curwin->w_cursor = old_pos;
3871 goto theend;
3872 }
3873 }
3874 start_pos = curwin->w_cursor;
3875
3876 /*
3877 * Search for matching "</aaa>". First isolate the "aaa".
3878 */
3879 inc_cursor();
3880 p = ml_get_cursor();
3881 for (cp = p; *cp != NUL && *cp != '>' && !vim_iswhite(*cp); mb_ptr_adv(cp))
3882 ;
3883 len = (int)(cp - p);
3884 if (len == 0)
3885 {
3886 curwin->w_cursor = old_pos;
3887 goto theend;
3888 }
3889 spat = alloc(len + 29);
3890 epat = alloc(len + 9);
3891 if (spat == NULL || epat == NULL)
3892 {
3893 vim_free(spat);
3894 vim_free(epat);
3895 curwin->w_cursor = old_pos;
3896 goto theend;
3897 }
3898 sprintf((char *)spat, "<%.*s\\%%(\\_[^>]\\{-}[^/]>\\|>\\)\\c", len, p);
3899 sprintf((char *)epat, "</%.*s>\\c", len, p);
3900
3901 r = do_searchpair(spat, (char_u *)"", epat, FORWARD, (char_u *)"",
3902 0, NULL, (linenr_T)0, 0L);
3903
3904 vim_free(spat);
3905 vim_free(epat);
3906
3907 if (r < 1 || lt(curwin->w_cursor, old_end))
3908 {
3909 /* Can't find other end or it's before the previous end. Could be a
3910 * HTML tag that doesn't have a matching end. Search backwards for
3911 * another starting tag. */
3912 count = 1;
3913 curwin->w_cursor = start_pos;
3914 goto again;
3915 }
3916
3917 if (do_include || r < 1)
3918 {
3919 /* Include up to the '>'. */
3920 while (*ml_get_cursor() != '>')
3921 if (inc_cursor() < 0)
3922 break;
3923 }
3924 else
3925 {
3926 /* Exclude the '<' of the end tag. */
3927 if (*ml_get_cursor() == '<')
3928 dec_cursor();
3929 }
3930 end_pos = curwin->w_cursor;
3931
3932 if (!do_include)
3933 {
3934 /* Exclude the start tag. */
3935 curwin->w_cursor = start_pos;
3936 while (inc_cursor() >= 0)
3937 if (*ml_get_cursor() == '>')
3938 {
3939 inc_cursor();
3940 start_pos = curwin->w_cursor;
3941 break;
3942 }
3943 curwin->w_cursor = end_pos;
3944
3945 /* If we now have the same text as before reset "do_include" and try
3946 * again. */
3947 if (equalpos(start_pos, old_start) && equalpos(end_pos, old_end))
3948 {
3949 do_include = TRUE;
3950 curwin->w_cursor = old_start;
3951 count = count_arg;
3952 goto again;
3953 }
3954 }
3955
3956 #ifdef FEAT_VISUAL
3957 if (VIsual_active)
3958 {
3959 /* If the end is before the start there is no text between tags, select
3960 * the char under the cursor. */
3961 if (lt(end_pos, start_pos))
3962 curwin->w_cursor = start_pos;
3963 else if (*p_sel == 'e')
3964 ++curwin->w_cursor.col;
3965 VIsual = start_pos;
3966 VIsual_mode = 'v';
3967 redraw_curbuf_later(INVERTED); /* update the inversion */
3968 showmode();
3969 }
3970 else
3971 #endif
3972 {
3973 oap->start = start_pos;
3974 oap->motion_type = MCHAR;
3975 if (lt(end_pos, start_pos))
3976 {
3977 /* End is before the start: there is no text between tags; operate
3978 * on an empty area. */
3979 curwin->w_cursor = start_pos;
3980 oap->inclusive = FALSE;
3981 }
3982 else
3983 oap->inclusive = TRUE;
3984 }
3985 retval = OK;
3986
3987 theend:
3988 p_ws = save_p_ws;
3989 return retval;
3990 }
3991
3992 int
3993 current_par(oap, count, include, type)
3994 oparg_T *oap;
3995 long count;
3996 int include; /* TRUE == include white space */
3997 int type; /* 'p' for paragraph, 'S' for section */
3998 {
3999 linenr_T start_lnum;
4000 linenr_T end_lnum;
4001 int white_in_front;
4002 int dir;
4003 int start_is_white;
4004 int prev_start_is_white;
4005 int retval = OK;
4006 int do_white = FALSE;
4007 int t;
4008 int i;
4009
4010 if (type == 'S') /* not implemented yet */
4011 return FAIL;
4012
4013 start_lnum = curwin->w_cursor.lnum;
4014
4015 #ifdef FEAT_VISUAL
4016 /*
4017 * When visual area is more than one line: extend it.
4018 */
4019 if (VIsual_active && start_lnum != VIsual.lnum)
4020 {
4021 extend:
4022 if (start_lnum < VIsual.lnum)
4023 dir = BACKWARD;
4024 else
4025 dir = FORWARD;
4026 for (i = count; --i >= 0; )
4027 {
4028 if (start_lnum ==
4029 (dir == BACKWARD ? 1 : curbuf->b_ml.ml_line_count))
4030 {
4031 retval = FAIL;
4032 break;
4033 }
4034
4035 prev_start_is_white = -1;
4036 for (t = 0; t < 2; ++t)
4037 {
4038 start_lnum += dir;
4039 start_is_white = linewhite(start_lnum);
4040 if (prev_start_is_white == start_is_white)
4041 {
4042 start_lnum -= dir;
4043 break;
4044 }
4045 for (;;)
4046 {
4047 if (start_lnum == (dir == BACKWARD
4048 ? 1 : curbuf->b_ml.ml_line_count))
4049 break;
4050 if (start_is_white != linewhite(start_lnum + dir)
4051 || (!start_is_white
4052 && startPS(start_lnum + (dir > 0
4053 ? 1 : 0), 0, 0)))
4054 break;
4055 start_lnum += dir;
4056 }
4057 if (!include)
4058 break;
4059 if (start_lnum == (dir == BACKWARD
4060 ? 1 : curbuf->b_ml.ml_line_count))
4061 break;
4062 prev_start_is_white = start_is_white;
4063 }
4064 }
4065 curwin->w_cursor.lnum = start_lnum;
4066 curwin->w_cursor.col = 0;
4067 return retval;
4068 }
4069 #endif
4070
4071 /*
4072 * First move back to the start_lnum of the paragraph or white lines
4073 */
4074 white_in_front = linewhite(start_lnum);
4075 while (start_lnum > 1)
4076 {
4077 if (white_in_front) /* stop at first white line */
4078 {
4079 if (!linewhite(start_lnum - 1))
4080 break;
4081 }
4082 else /* stop at first non-white line of start of paragraph */
4083 {
4084 if (linewhite(start_lnum - 1) || startPS(start_lnum, 0, 0))
4085 break;
4086 }
4087 --start_lnum;
4088 }
4089
4090 /*
4091 * Move past the end of any white lines.
4092 */
4093 end_lnum = start_lnum;
4094 while (end_lnum <= curbuf->b_ml.ml_line_count && linewhite(end_lnum))
4095 ++end_lnum;
4096
4097 --end_lnum;
4098 i = count;
4099 if (!include && white_in_front)
4100 --i;
4101 while (i--)
4102 {
4103 if (end_lnum == curbuf->b_ml.ml_line_count)
4104 return FAIL;
4105
4106 if (!include)
4107 do_white = linewhite(end_lnum + 1);
4108
4109 if (include || !do_white)
4110 {
4111 ++end_lnum;
4112 /*
4113 * skip to end of paragraph
4114 */
4115 while (end_lnum < curbuf->b_ml.ml_line_count
4116 && !linewhite(end_lnum + 1)
4117 && !startPS(end_lnum + 1, 0, 0))
4118 ++end_lnum;
4119 }
4120
4121 if (i == 0 && white_in_front && include)
4122 break;
4123
4124 /*
4125 * skip to end of white lines after paragraph
4126 */
4127 if (include || do_white)
4128 while (end_lnum < curbuf->b_ml.ml_line_count
4129 && linewhite(end_lnum + 1))
4130 ++end_lnum;
4131 }
4132
4133 /*
4134 * If there are no empty lines at the end, try to find some empty lines at
4135 * the start (unless that has been done already).
4136 */
4137 if (!white_in_front && !linewhite(end_lnum) && include)
4138 while (start_lnum > 1 && linewhite(start_lnum - 1))
4139 --start_lnum;
4140
4141 #ifdef FEAT_VISUAL
4142 if (VIsual_active)
4143 {
4144 /* Problem: when doing "Vipipip" nothing happens in a single white
4145 * line, we get stuck there. Trap this here. */
4146 if (VIsual_mode == 'V' && start_lnum == curwin->w_cursor.lnum)
4147 goto extend;
4148 VIsual.lnum = start_lnum;
4149 VIsual_mode = 'V';
4150 redraw_curbuf_later(INVERTED); /* update the inversion */
4151 showmode();
4152 }
4153 else
4154 #endif
4155 {
4156 oap->start.lnum = start_lnum;
4157 oap->start.col = 0;
4158 oap->motion_type = MLINE;
4159 }
4160 curwin->w_cursor.lnum = end_lnum;
4161 curwin->w_cursor.col = 0;
4162
4163 return OK;
4164 }
4165
4166 static int find_next_quote __ARGS((char_u *top_ptr, int col, int quotechar, char_u *escape));
4167 static int find_prev_quote __ARGS((char_u *line, int col_start, int quotechar, char_u *escape));
4168
4169 /*
4170 * Search quote char from string line[col].
4171 * Quote character escaped by one of the characters in "escape" is not counted
4172 * as a quote.
4173 * Returns column number of "quotechar" or -1 when not found.
4174 */
4175 static int
4176 find_next_quote(line, col, quotechar, escape)
4177 char_u *line;
4178 int col;
4179 int quotechar;
4180 char_u *escape; /* escape characters, can be NULL */
4181 {
4182 int c;
4183
4184 for (;;)
4185 {
4186 c = line[col];
4187 if (c == NUL)
4188 return -1;
4189 else if (escape != NULL && vim_strchr(escape, c))
4190 ++col;
4191 else if (c == quotechar)
4192 break;
4193 #ifdef FEAT_MBYTE
4194 if (has_mbyte)
4195 col += (*mb_ptr2len)(line + col);
4196 else
4197 #endif
4198 ++col;
4199 }
4200 return col;
4201 }
4202
4203 /*
4204 * Search backwards in "line" from column "col_start" to find "quotechar".
4205 * Quote character escaped by one of the characters in "escape" is not counted
4206 * as a quote.
4207 * Return the found column or zero.
4208 */
4209 static int
4210 find_prev_quote(line, col_start, quotechar, escape)
4211 char_u *line;
4212 int col_start;
4213 int quotechar;
4214 char_u *escape; /* escape characters, can be NULL */
4215 {
4216 int n;
4217
4218 while (col_start > 0)
4219 {
4220 --col_start;
4221 #ifdef FEAT_MBYTE
4222 col_start -= (*mb_head_off)(line, line + col_start);
4223 #endif
4224 n = 0;
4225 if (escape != NULL)
4226 while (col_start - n > 0 && vim_strchr(escape,
4227 line[col_start - n - 1]) != NULL)
4228 ++n;
4229 if (n & 1)
4230 col_start -= n; /* uneven number of escape chars, skip it */
4231 else if (line[col_start] == quotechar)
4232 break;
4233 }
4234 return col_start;
4235 }
4236
4237 /*
4238 * Find quote under the cursor, cursor at end.
4239 * Returns TRUE if found, else FALSE.
4240 */
4241 int
4242 current_quote(oap, count, include, quotechar)
4243 oparg_T *oap;
4244 long count;
4245 int include; /* TRUE == include quote char */
4246 int quotechar; /* Quote character */
4247 {
4248 char_u *line = ml_get_curline();
4249 int col_end;
4250 int col_start = curwin->w_cursor.col;
4251 int inclusive = FALSE;
4252 #ifdef FEAT_VISUAL
4253 int vis_empty = TRUE; /* Visual selection <= 1 char */
4254 int vis_bef_curs = FALSE; /* Visual starts before cursor */
4255 int inside_quotes = FALSE; /* Looks like "i'" done before */
4256 int selected_quote = FALSE; /* Has quote inside selection */
4257 int i;
4258
4259 /* Correct cursor when 'selection' is exclusive */
4260 if (VIsual_active)
4261 {
4262 vis_bef_curs = lt(VIsual, curwin->w_cursor);
4263 if (*p_sel == 'e' && vis_bef_curs)
4264 dec_cursor();
4265 vis_empty = equalpos(VIsual, curwin->w_cursor);
4266 }
4267
4268 if (!vis_empty)
4269 {
4270 /* Check if the existing selection exactly spans the text inside
4271 * quotes. */
4272 if (vis_bef_curs)
4273 {
4274 inside_quotes = VIsual.col > 0
4275 && line[VIsual.col - 1] == quotechar
4276 && line[curwin->w_cursor.col] != NUL
4277 && line[curwin->w_cursor.col + 1] == quotechar;
4278 i = VIsual.col;
4279 col_end = curwin->w_cursor.col;
4280 }
4281 else
4282 {
4283 inside_quotes = curwin->w_cursor.col > 0
4284 && line[curwin->w_cursor.col - 1] == quotechar
4285 && line[VIsual.col] != NUL
4286 && line[VIsual.col + 1] == quotechar;
4287 i = curwin->w_cursor.col;
4288 col_end = VIsual.col;
4289 }
4290
4291 /* Find out if we have a quote in the selection. */
4292 while (i <= col_end)
4293 if (line[i++] == quotechar)
4294 {
4295 selected_quote = TRUE;
4296 break;
4297 }
4298 }
4299
4300 if (!vis_empty && line[col_start] == quotechar)
4301 {
4302 /* Already selecting something and on a quote character. Find the
4303 * next quoted string. */
4304 if (vis_bef_curs)
4305 {
4306 /* Assume we are on a closing quote: move to after the next
4307 * opening quote. */
4308 col_start = find_next_quote(line, col_start + 1, quotechar, NULL);
4309 if (col_start < 0)
4310 return FALSE;
4311 col_end = find_next_quote(line, col_start + 1, quotechar,
4312 curbuf->b_p_qe);
4313 if (col_end < 0)
4314 {
4315 /* We were on a starting quote perhaps? */
4316 col_end = col_start;
4317 col_start = curwin->w_cursor.col;
4318 }
4319 }
4320 else
4321 {
4322 col_end = find_prev_quote(line, col_start, quotechar, NULL);
4323 if (line[col_end] != quotechar)
4324 return FALSE;
4325 col_start = find_prev_quote(line, col_end, quotechar,
4326 curbuf->b_p_qe);
4327 if (line[col_start] != quotechar)
4328 {
4329 /* We were on an ending quote perhaps? */
4330 col_start = col_end;
4331 col_end = curwin->w_cursor.col;
4332 }
4333 }
4334 }
4335 else
4336 #endif
4337
4338 if (line[col_start] == quotechar
4339 #ifdef FEAT_VISUAL
4340 || !vis_empty
4341 #endif
4342 )
4343 {
4344 int first_col = col_start;
4345
4346 #ifdef FEAT_VISUAL
4347 if (!vis_empty)
4348 {
4349 if (vis_bef_curs)
4350 first_col = find_next_quote(line, col_start, quotechar, NULL);
4351 else
4352 first_col = find_prev_quote(line, col_start, quotechar, NULL);
4353 }
4354 #endif
4355 /* The cursor is on a quote, we don't know if it's the opening or
4356 * closing quote. Search from the start of the line to find out.
4357 * Also do this when there is a Visual area, a' may leave the cursor
4358 * in between two strings. */
4359 col_start = 0;
4360 for (;;)
4361 {
4362 /* Find open quote character. */
4363 col_start = find_next_quote(line, col_start, quotechar, NULL);
4364 if (col_start < 0 || col_start > first_col)
4365 return FALSE;
4366 /* Find close quote character. */
4367 col_end = find_next_quote(line, col_start + 1, quotechar,
4368 curbuf->b_p_qe);
4369 if (col_end < 0)
4370 return FALSE;
4371 /* If is cursor between start and end quote character, it is
4372 * target text object. */
4373 if (col_start <= first_col && first_col <= col_end)
4374 break;
4375 col_start = col_end + 1;
4376 }
4377 }
4378 else
4379 {
4380 /* Search backward for a starting quote. */
4381 col_start = find_prev_quote(line, col_start, quotechar, curbuf->b_p_qe);
4382 if (line[col_start] != quotechar)
4383 {
4384 /* No quote before the cursor, look after the cursor. */
4385 col_start = find_next_quote(line, col_start, quotechar, NULL);
4386 if (col_start < 0)
4387 return FALSE;
4388 }
4389
4390 /* Find close quote character. */
4391 col_end = find_next_quote(line, col_start + 1, quotechar,
4392 curbuf->b_p_qe);
4393 if (col_end < 0)
4394 return FALSE;
4395 }
4396
4397 /* When "include" is TRUE, include spaces after closing quote or before
4398 * the starting quote. */
4399 if (include)
4400 {
4401 if (vim_iswhite(line[col_end + 1]))
4402 while (vim_iswhite(line[col_end + 1]))
4403 ++col_end;
4404 else
4405 while (col_start > 0 && vim_iswhite(line[col_start - 1]))
4406 --col_start;
4407 }
4408
4409 /* Set start position. After vi" another i" must include the ".
4410 * For v2i" include the quotes. */
4411 if (!include && count < 2
4412 #ifdef FEAT_VISUAL
4413 && (vis_empty || !inside_quotes)
4414 #endif
4415 )
4416 ++col_start;
4417 curwin->w_cursor.col = col_start;
4418 #ifdef FEAT_VISUAL
4419 if (VIsual_active)
4420 {
4421 /* Set the start of the Visual area when the Visual area was empty, we
4422 * were just inside quotes or the Visual area didn't start at a quote
4423 * and didn't include a quote.
4424 */
4425 if (vis_empty
4426 || (vis_bef_curs
4427 && !selected_quote
4428 && (inside_quotes
4429 || (line[VIsual.col] != quotechar
4430 && (VIsual.col == 0
4431 || line[VIsual.col - 1] != quotechar)))))
4432 {
4433 VIsual = curwin->w_cursor;
4434 redraw_curbuf_later(INVERTED);
4435 }
4436 }
4437 else
4438 #endif
4439 {
4440 oap->start = curwin->w_cursor;
4441 oap->motion_type = MCHAR;
4442 }
4443
4444 /* Set end position. */
4445 curwin->w_cursor.col = col_end;
4446 if ((include || count > 1
4447 #ifdef FEAT_VISUAL
4448 /* After vi" another i" must include the ". */
4449 || (!vis_empty && inside_quotes)
4450 #endif
4451 ) && inc_cursor() == 2)
4452 inclusive = TRUE;
4453 #ifdef FEAT_VISUAL
4454 if (VIsual_active)
4455 {
4456 if (vis_empty || vis_bef_curs)
4457 {
4458 /* decrement cursor when 'selection' is not exclusive */
4459 if (*p_sel != 'e')
4460 dec_cursor();
4461 }
4462 else
4463 {
4464 /* Cursor is at start of Visual area. Set the end of the Visual
4465 * area when it was just inside quotes or it didn't end at a
4466 * quote. */
4467 if (inside_quotes
4468 || (!selected_quote
4469 && line[VIsual.col] != quotechar
4470 && (line[VIsual.col] == NUL
4471 || line[VIsual.col + 1] != quotechar)))
4472 {
4473 dec_cursor();
4474 VIsual = curwin->w_cursor;
4475 }
4476 curwin->w_cursor.col = col_start;
4477 }
4478 if (VIsual_mode == 'V')
4479 {
4480 VIsual_mode = 'v';
4481 redraw_cmdline = TRUE; /* show mode later */
4482 }
4483 }
4484 else
4485 #endif
4486 {
4487 /* Set inclusive and other oap's flags. */
4488 oap->inclusive = inclusive;
4489 }
4490
4491 return OK;
4492 }
4493
4494 #endif /* FEAT_TEXTOBJ */
4495
4496 #if defined(FEAT_LISP) || defined(FEAT_CINDENT) || defined(FEAT_TEXTOBJ) \
4497 || defined(PROTO)
4498 /*
4499 * return TRUE if line 'lnum' is empty or has white chars only.
4500 */
4501 int
4502 linewhite(lnum)
4503 linenr_T lnum;
4504 {
4505 char_u *p;
4506
4507 p = skipwhite(ml_get(lnum));
4508 return (*p == NUL);
4509 }
4510 #endif
4511
4512 #if defined(FEAT_FIND_ID) || defined(PROTO)
4513 /*
4514 * Find identifiers or defines in included files.
4515 * if p_ic && (compl_cont_status & CONT_SOL) then ptr must be in lowercase.
4516 */
4517 /*ARGSUSED*/
4518 void
4519 find_pattern_in_path(ptr, dir, len, whole, skip_comments,
4520 type, count, action, start_lnum, end_lnum)
4521 char_u *ptr; /* pointer to search pattern */
4522 int dir; /* direction of expansion */
4523 int len; /* length of search pattern */
4524 int whole; /* match whole words only */
4525 int skip_comments; /* don't match inside comments */
4526 int type; /* Type of search; are we looking for a type?
4527 a macro? */
4528 long count;
4529 int action; /* What to do when we find it */
4530 linenr_T start_lnum; /* first line to start searching */
4531 linenr_T end_lnum; /* last line for searching */
4532 {
4533 SearchedFile *files; /* Stack of included files */
4534 SearchedFile *bigger; /* When we need more space */
4535 int max_path_depth = 50;
4536 long match_count = 1;
4537
4538 char_u *pat;
4539 char_u *new_fname;
4540 char_u *curr_fname = curbuf->b_fname;
4541 char_u *prev_fname = NULL;
4542 linenr_T lnum;
4543 int depth;
4544 int depth_displayed; /* For type==CHECK_PATH */
4545 int old_files;
4546 int already_searched;
4547 char_u *file_line;
4548 char_u *line;
4549 char_u *p;
4550 char_u save_char;
4551 int define_matched;
4552 regmatch_T regmatch;
4553 regmatch_T incl_regmatch;
4554 regmatch_T def_regmatch;
4555 int matched = FALSE;
4556 int did_show = FALSE;
4557 int found = FALSE;
4558 int i;
4559 char_u *already = NULL;
4560 char_u *startp = NULL;
4561 char_u *inc_opt = NULL;
4562 #ifdef RISCOS
4563 int previous_munging = __riscosify_control;
4564 #endif
4565 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
4566 win_T *curwin_save = NULL;
4567 #endif
4568
4569 regmatch.regprog = NULL;
4570 incl_regmatch.regprog = NULL;
4571 def_regmatch.regprog = NULL;
4572
4573 file_line = alloc(LSIZE);
4574 if (file_line == NULL)
4575 return;
4576
4577 #ifdef RISCOS
4578 /* UnixLib knows best how to munge c file names - turn munging back on. */
4579 int __riscosify_control = 0;
4580 #endif
4581
4582 if (type != CHECK_PATH && type != FIND_DEFINE
4583 #ifdef FEAT_INS_EXPAND
4584 /* when CONT_SOL is set compare "ptr" with the beginning of the line
4585 * is faster than quote_meta/regcomp/regexec "ptr" -- Acevedo */
4586 && !(compl_cont_status & CONT_SOL)
4587 #endif
4588 )
4589 {
4590 pat = alloc(len + 5);
4591 if (pat == NULL)
4592 goto fpip_end;
4593 sprintf((char *)pat, whole ? "\\<%.*s\\>" : "%.*s", len, ptr);
4594 /* ignore case according to p_ic, p_scs and pat */
4595 regmatch.rm_ic = ignorecase(pat);
4596 regmatch.regprog = vim_regcomp(pat, p_magic ? RE_MAGIC : 0);
4597 vim_free(pat);
4598 if (regmatch.regprog == NULL)
4599 goto fpip_end;
4600 }
4601 inc_opt = (*curbuf->b_p_inc == NUL) ? p_inc : curbuf->b_p_inc;
4602 if (*inc_opt != NUL)
4603 {
4604 incl_regmatch.regprog = vim_regcomp(inc_opt, p_magic ? RE_MAGIC : 0);
4605 if (incl_regmatch.regprog == NULL)
4606 goto fpip_end;
4607 incl_regmatch.rm_ic = FALSE; /* don't ignore case in incl. pat. */
4608 }
4609 if (type == FIND_DEFINE && (*curbuf->b_p_def != NUL || *p_def != NUL))
4610 {
4611 def_regmatch.regprog = vim_regcomp(*curbuf->b_p_def == NUL
4612 ? p_def : curbuf->b_p_def, p_magic ? RE_MAGIC : 0);
4613 if (def_regmatch.regprog == NULL)
4614 goto fpip_end;
4615 def_regmatch.rm_ic = FALSE; /* don't ignore case in define pat. */
4616 }
4617 files = (SearchedFile *)lalloc_clear((long_u)
4618 (max_path_depth * sizeof(SearchedFile)), TRUE);
4619 if (files == NULL)
4620 goto fpip_end;
4621 old_files = max_path_depth;
4622 depth = depth_displayed = -1;
4623
4624 lnum = start_lnum;
4625 if (end_lnum > curbuf->b_ml.ml_line_count)
4626 end_lnum = curbuf->b_ml.ml_line_count;
4627 if (lnum > end_lnum) /* do at least one line */
4628 lnum = end_lnum;
4629 line = ml_get(lnum);
4630
4631 for (;;)
4632 {
4633 if (incl_regmatch.regprog != NULL
4634 && vim_regexec(&incl_regmatch, line, (colnr_T)0))
4635 {
4636 char_u *p_fname = (curr_fname == curbuf->b_fname)
4637 ? curbuf->b_ffname : curr_fname;
4638
4639 if (inc_opt != NULL && strstr((char *)inc_opt, "\\zs") != NULL)
4640 /* Use text from '\zs' to '\ze' (or end) of 'include'. */
4641 new_fname = find_file_name_in_path(incl_regmatch.startp[0],
4642 (int)(incl_regmatch.endp[0] - incl_regmatch.startp[0]),
4643 FNAME_EXP|FNAME_INCL|FNAME_REL, 1L, p_fname);
4644 else
4645 /* Use text after match with 'include'. */
4646 new_fname = file_name_in_line(incl_regmatch.endp[0], 0,
4647 FNAME_EXP|FNAME_INCL|FNAME_REL, 1L, p_fname, NULL);
4648 already_searched = FALSE;
4649 if (new_fname != NULL)
4650 {
4651 /* Check whether we have already searched in this file */
4652 for (i = 0;; i++)
4653 {
4654 if (i == depth + 1)
4655 i = old_files;
4656 if (i == max_path_depth)
4657 break;
4658 if (fullpathcmp(new_fname, files[i].name, TRUE) & FPC_SAME)
4659 {
4660 if (type != CHECK_PATH &&
4661 action == ACTION_SHOW_ALL && files[i].matched)
4662 {
4663 msg_putchar('\n'); /* cursor below last one */
4664 if (!got_int) /* don't display if 'q'
4665 typed at "--more--"
4666 mesage */
4667 {
4668 msg_home_replace_hl(new_fname);
4669 MSG_PUTS(_(" (includes previously listed match)"));
4670 prev_fname = NULL;
4671 }
4672 }
4673 vim_free(new_fname);
4674 new_fname = NULL;
4675 already_searched = TRUE;
4676 break;
4677 }
4678 }
4679 }
4680
4681 if (type == CHECK_PATH && (action == ACTION_SHOW_ALL
4682 || (new_fname == NULL && !already_searched)))
4683 {
4684 if (did_show)
4685 msg_putchar('\n'); /* cursor below last one */
4686 else
4687 {
4688 gotocmdline(TRUE); /* cursor at status line */
4689 MSG_PUTS_TITLE(_("--- Included files "));
4690 if (action != ACTION_SHOW_ALL)
4691 MSG_PUTS_TITLE(_("not found "));
4692 MSG_PUTS_TITLE(_("in path ---\n"));
4693 }
4694 did_show = TRUE;
4695 while (depth_displayed < depth && !got_int)
4696 {
4697 ++depth_displayed;
4698 for (i = 0; i < depth_displayed; i++)
4699 MSG_PUTS(" ");
4700 msg_home_replace(files[depth_displayed].name);
4701 MSG_PUTS(" -->\n");
4702 }
4703 if (!got_int) /* don't display if 'q' typed
4704 for "--more--" message */
4705 {
4706 for (i = 0; i <= depth_displayed; i++)
4707 MSG_PUTS(" ");
4708 if (new_fname != NULL)
4709 {
4710 /* using "new_fname" is more reliable, e.g., when
4711 * 'includeexpr' is set. */
4712 msg_outtrans_attr(new_fname, hl_attr(HLF_D));
4713 }
4714 else
4715 {
4716 /*
4717 * Isolate the file name.
4718 * Include the surrounding "" or <> if present.
4719 */
4720 for (p = incl_regmatch.endp[0]; !vim_isfilec(*p); p++)
4721 ;
4722 for (i = 0; vim_isfilec(p[i]); i++)
4723 ;
4724 if (i == 0)
4725 {
4726 /* Nothing found, use the rest of the line. */
4727 p = incl_regmatch.endp[0];
4728 i = (int)STRLEN(p);
4729 }
4730 else
4731 {
4732 if (p[-1] == '"' || p[-1] == '<')
4733 {
4734 --p;
4735 ++i;
4736 }
4737 if (p[i] == '"' || p[i] == '>')
4738 ++i;
4739 }
4740 save_char = p[i];
4741 p[i] = NUL;
4742 msg_outtrans_attr(p, hl_attr(HLF_D));
4743 p[i] = save_char;
4744 }
4745
4746 if (new_fname == NULL && action == ACTION_SHOW_ALL)
4747 {
4748 if (already_searched)
4749 MSG_PUTS(_(" (Already listed)"));
4750 else
4751 MSG_PUTS(_(" NOT FOUND"));
4752 }
4753 }
4754 out_flush(); /* output each line directly */
4755 }
4756
4757 if (new_fname != NULL)
4758 {
4759 /* Push the new file onto the file stack */
4760 if (depth + 1 == old_files)
4761 {
4762 bigger = (SearchedFile *)lalloc((long_u)(
4763 max_path_depth * 2 * sizeof(SearchedFile)), TRUE);
4764 if (bigger != NULL)
4765 {
4766 for (i = 0; i <= depth; i++)
4767 bigger[i] = files[i];
4768 for (i = depth + 1; i < old_files + max_path_depth; i++)
4769 {
4770 bigger[i].fp = NULL;
4771 bigger[i].name = NULL;
4772 bigger[i].lnum = 0;
4773 bigger[i].matched = FALSE;
4774 }
4775 for (i = old_files; i < max_path_depth; i++)
4776 bigger[i + max_path_depth] = files[i];
4777 old_files += max_path_depth;
4778 max_path_depth *= 2;
4779 vim_free(files);
4780 files = bigger;
4781 }
4782 }
4783 if ((files[depth + 1].fp = mch_fopen((char *)new_fname, "r"))
4784 == NULL)
4785 vim_free(new_fname);
4786 else
4787 {
4788 if (++depth == old_files)
4789 {
4790 /*
4791 * lalloc() for 'bigger' must have failed above. We
4792 * will forget one of our already visited files now.
4793 */
4794 vim_free(files[old_files].name);
4795 ++old_files;
4796 }
4797 files[depth].name = curr_fname = new_fname;
4798 files[depth].lnum = 0;
4799 files[depth].matched = FALSE;
4800 #ifdef FEAT_INS_EXPAND
4801 if (action == ACTION_EXPAND)
4802 {
4803 msg_hist_off = TRUE; /* reset in msg_trunc_attr() */
4804 vim_snprintf((char*)IObuff, IOSIZE,
4805 _("Scanning included file: %s"),
4806 (char *)new_fname);
4807 msg_trunc_attr(IObuff, TRUE, hl_attr(HLF_R));
4808 }
4809 else
4810 #endif
4811 if (p_verbose >= 5)
4812 {
4813 verbose_enter();
4814 smsg((char_u *)_("Searching included file %s"),
4815 (char *)new_fname);
4816 verbose_leave();
4817 }
4818
4819 }
4820 }
4821 }
4822 else
4823 {
4824 /*
4825 * Check if the line is a define (type == FIND_DEFINE)
4826 */
4827 p = line;
4828 search_line:
4829 define_matched = FALSE;
4830 if (def_regmatch.regprog != NULL
4831 && vim_regexec(&def_regmatch, line, (colnr_T)0))
4832 {
4833 /*
4834 * Pattern must be first identifier after 'define', so skip
4835 * to that position before checking for match of pattern. Also
4836 * don't let it match beyond the end of this identifier.
4837 */
4838 p = def_regmatch.endp[0];
4839 while (*p && !vim_iswordc(*p))
4840 p++;
4841 define_matched = TRUE;
4842 }
4843
4844 /*
4845 * Look for a match. Don't do this if we are looking for a
4846 * define and this line didn't match define_prog above.
4847 */
4848 if (def_regmatch.regprog == NULL || define_matched)
4849 {
4850 if (define_matched
4851 #ifdef FEAT_INS_EXPAND
4852 || (compl_cont_status & CONT_SOL)
4853 #endif
4854 )
4855 {
4856 /* compare the first "len" chars from "ptr" */
4857 startp = skipwhite(p);
4858 if (p_ic)
4859 matched = !MB_STRNICMP(startp, ptr, len);
4860 else
4861 matched = !STRNCMP(startp, ptr, len);
4862 if (matched && define_matched && whole
4863 && vim_iswordc(startp[len]))
4864 matched = FALSE;
4865 }
4866 else if (regmatch.regprog != NULL
4867 && vim_regexec(&regmatch, line, (colnr_T)(p - line)))
4868 {
4869 matched = TRUE;
4870 startp = regmatch.startp[0];
4871 /*
4872 * Check if the line is not a comment line (unless we are
4873 * looking for a define). A line starting with "# define"
4874 * is not considered to be a comment line.
4875 */
4876 if (!define_matched && skip_comments)
4877 {
4878 #ifdef FEAT_COMMENTS
4879 if ((*line != '#' ||
4880 STRNCMP(skipwhite(line + 1), "define", 6) != 0)
4881 && get_leader_len(line, NULL, FALSE))
4882 matched = FALSE;
4883
4884 /*
4885 * Also check for a "/ *" or "/ /" before the match.
4886 * Skips lines like "int backwards; / * normal index
4887 * * /" when looking for "normal".
4888 * Note: Doesn't skip "/ *" in comments.
4889 */
4890 p = skipwhite(line);
4891 if (matched
4892 || (p[0] == '/' && p[1] == '*') || p[0] == '*')
4893 #endif
4894 for (p = line; *p && p < startp; ++p)
4895 {
4896 if (matched
4897 && p[0] == '/'
4898 && (p[1] == '*' || p[1] == '/'))
4899 {
4900 matched = FALSE;
4901 /* After "//" all text is comment */
4902 if (p[1] == '/')
4903 break;
4904 ++p;
4905 }
4906 else if (!matched && p[0] == '*' && p[1] == '/')
4907 {
4908 /* Can find match after "* /". */
4909 matched = TRUE;
4910 ++p;
4911 }
4912 }
4913 }
4914 }
4915 }
4916 }
4917 if (matched)
4918 {
4919 #ifdef FEAT_INS_EXPAND
4920 if (action == ACTION_EXPAND)
4921 {
4922 int reuse = 0;
4923 int add_r;
4924 char_u *aux;
4925
4926 if (depth == -1 && lnum == curwin->w_cursor.lnum)
4927 break;
4928 found = TRUE;
4929 aux = p = startp;
4930 if (compl_cont_status & CONT_ADDING)
4931 {
4932 p += compl_length;
4933 if (vim_iswordp(p))
4934 goto exit_matched;
4935 p = find_word_start(p);
4936 }
4937 p = find_word_end(p);
4938 i = (int)(p - aux);
4939
4940 if ((compl_cont_status & CONT_ADDING) && i == compl_length)
4941 {
4942 /* IOSIZE > compl_length, so the STRNCPY works */
4943 STRNCPY(IObuff, aux, i);
4944
4945 /* Get the next line: when "depth" < 0 from the current
4946 * buffer, otherwise from the included file. Jump to
4947 * exit_matched when past the last line. */
4948 if (depth < 0)
4949 {
4950 if (lnum >= end_lnum)
4951 goto exit_matched;
4952 line = ml_get(++lnum);
4953 }
4954 else if (vim_fgets(line = file_line,
4955 LSIZE, files[depth].fp))
4956 goto exit_matched;
4957
4958 /* we read a line, set "already" to check this "line" later
4959 * if depth >= 0 we'll increase files[depth].lnum far
4960 * bellow -- Acevedo */
4961 already = aux = p = skipwhite(line);
4962 p = find_word_start(p);
4963 p = find_word_end(p);
4964 if (p > aux)
4965 {
4966 if (*aux != ')' && IObuff[i-1] != TAB)
4967 {
4968 if (IObuff[i-1] != ' ')
4969 IObuff[i++] = ' ';
4970 /* IObuf =~ "\(\k\|\i\).* ", thus i >= 2*/
4971 if (p_js
4972 && (IObuff[i-2] == '.'
4973 || (vim_strchr(p_cpo, CPO_JOINSP) == NULL
4974 && (IObuff[i-2] == '?'
4975 || IObuff[i-2] == '!'))))
4976 IObuff[i++] = ' ';
4977 }
4978 /* copy as much as posible of the new word */
4979 if (p - aux >= IOSIZE - i)
4980 p = aux + IOSIZE - i - 1;
4981 STRNCPY(IObuff + i, aux, p - aux);
4982 i += (int)(p - aux);
4983 reuse |= CONT_S_IPOS;
4984 }
4985 IObuff[i] = NUL;
4986 aux = IObuff;
4987
4988 if (i == compl_length)
4989 goto exit_matched;
4990 }
4991
4992 add_r = ins_compl_add_infercase(aux, i, p_ic,
4993 curr_fname == curbuf->b_fname ? NULL : curr_fname,
4994 dir, reuse);
4995 if (add_r == OK)
4996 /* if dir was BACKWARD then honor it just once */
4997 dir = FORWARD;
4998 else if (add_r == FAIL)
4999 break;
5000 }
5001 else
5002 #endif
5003 if (action == ACTION_SHOW_ALL)
5004 {
5005 found = TRUE;
5006 if (!did_show)
5007 gotocmdline(TRUE); /* cursor at status line */
5008 if (curr_fname != prev_fname)
5009 {
5010 if (did_show)
5011 msg_putchar('\n'); /* cursor below last one */
5012 if (!got_int) /* don't display if 'q' typed
5013 at "--more--" mesage */
5014 msg_home_replace_hl(curr_fname);
5015 prev_fname = curr_fname;
5016 }
5017 did_show = TRUE;
5018 if (!got_int)
5019 show_pat_in_path(line, type, TRUE, action,
5020 (depth == -1) ? NULL : files[depth].fp,
5021 (depth == -1) ? &lnum : &files[depth].lnum,
5022 match_count++);
5023
5024 /* Set matched flag for this file and all the ones that
5025 * include it */
5026 for (i = 0; i <= depth; ++i)
5027 files[i].matched = TRUE;
5028 }
5029 else if (--count <= 0)
5030 {
5031 found = TRUE;
5032 if (depth == -1 && lnum == curwin->w_cursor.lnum
5033 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
5034 && g_do_tagpreview == 0
5035 #endif
5036 )
5037 EMSG(_("E387: Match is on current line"));
5038 else if (action == ACTION_SHOW)
5039 {
5040 show_pat_in_path(line, type, did_show, action,
5041 (depth == -1) ? NULL : files[depth].fp,
5042 (depth == -1) ? &lnum : &files[depth].lnum, 1L);
5043 did_show = TRUE;
5044 }
5045 else
5046 {
5047 #ifdef FEAT_GUI
5048 need_mouse_correct = TRUE;
5049 #endif
5050 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
5051 /* ":psearch" uses the preview window */
5052 if (g_do_tagpreview != 0)
5053 {
5054 curwin_save = curwin;
5055 prepare_tagpreview(TRUE);
5056 }
5057 #endif
5058 if (action == ACTION_SPLIT)
5059 {
5060 #ifdef FEAT_WINDOWS
5061 if (win_split(0, 0) == FAIL)
5062 #endif
5063 break;
5064 #ifdef FEAT_SCROLLBIND
5065 curwin->w_p_scb = FALSE;
5066 #endif
5067 }
5068 if (depth == -1)
5069 {
5070 /* match in current file */
5071 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
5072 if (g_do_tagpreview != 0)
5073 {
5074 if (getfile(0, curwin_save->w_buffer->b_fname,
5075 NULL, TRUE, lnum, FALSE) > 0)
5076 break; /* failed to jump to file */
5077 }
5078 else
5079 #endif
5080 setpcmark();
5081 curwin->w_cursor.lnum = lnum;
5082 }
5083 else
5084 {
5085 if (getfile(0, files[depth].name, NULL, TRUE,
5086 files[depth].lnum, FALSE) > 0)
5087 break; /* failed to jump to file */
5088 /* autocommands may have changed the lnum, we don't
5089 * want that here */
5090 curwin->w_cursor.lnum = files[depth].lnum;
5091 }
5092 }
5093 if (action != ACTION_SHOW)
5094 {
5095 curwin->w_cursor.col = (colnr_T) (startp - line);
5096 curwin->w_set_curswant = TRUE;
5097 }
5098
5099 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
5100 if (g_do_tagpreview != 0
5101 && curwin != curwin_save && win_valid(curwin_save))
5102 {
5103 /* Return cursor to where we were */
5104 validate_cursor();
5105 redraw_later(VALID);
5106 win_enter(curwin_save, TRUE);
5107 }
5108 #endif
5109 break;
5110 }
5111 #ifdef FEAT_INS_EXPAND
5112 exit_matched:
5113 #endif
5114 matched = FALSE;
5115 /* look for other matches in the rest of the line if we
5116 * are not at the end of it already */
5117 if (def_regmatch.regprog == NULL
5118 #ifdef FEAT_INS_EXPAND
5119 && action == ACTION_EXPAND
5120 && !(compl_cont_status & CONT_SOL)
5121 #endif
5122 && *(p = startp + 1))
5123 goto search_line;
5124 }
5125 line_breakcheck();
5126 #ifdef FEAT_INS_EXPAND
5127 if (action == ACTION_EXPAND)
5128 ins_compl_check_keys(30);
5129 if (got_int || compl_interrupted)
5130 #else
5131 if (got_int)
5132 #endif
5133 break;
5134
5135 /*
5136 * Read the next line. When reading an included file and encountering
5137 * end-of-file, close the file and continue in the file that included
5138 * it.
5139 */
5140 while (depth >= 0 && !already
5141 && vim_fgets(line = file_line, LSIZE, files[depth].fp))
5142 {
5143 fclose(files[depth].fp);
5144 --old_files;
5145 files[old_files].name = files[depth].name;
5146 files[old_files].matched = files[depth].matched;
5147 --depth;
5148 curr_fname = (depth == -1) ? curbuf->b_fname
5149 : files[depth].name;
5150 if (depth < depth_displayed)
5151 depth_displayed = depth;
5152 }
5153 if (depth >= 0) /* we could read the line */
5154 files[depth].lnum++;
5155 else if (!already)
5156 {
5157 if (++lnum > end_lnum)
5158 break;
5159 line = ml_get(lnum);
5160 }
5161 already = NULL;
5162 }
5163 /* End of big for (;;) loop. */
5164
5165 /* Close any files that are still open. */
5166 for (i = 0; i <= depth; i++)
5167 {
5168 fclose(files[i].fp);
5169 vim_free(files[i].name);
5170 }
5171 for (i = old_files; i < max_path_depth; i++)
5172 vim_free(files[i].name);
5173 vim_free(files);
5174
5175 if (type == CHECK_PATH)
5176 {
5177 if (!did_show)
5178 {
5179 if (action != ACTION_SHOW_ALL)
5180 MSG(_("All included files were found"));
5181 else
5182 MSG(_("No included files"));
5183 }
5184 }
5185 else if (!found
5186 #ifdef FEAT_INS_EXPAND
5187 && action != ACTION_EXPAND
5188 #endif
5189 )
5190 {
5191 #ifdef FEAT_INS_EXPAND
5192 if (got_int || compl_interrupted)
5193 #else
5194 if (got_int)
5195 #endif
5196 EMSG(_(e_interr));
5197 else if (type == FIND_DEFINE)
5198 EMSG(_("E388: Couldn't find definition"));
5199 else
5200 EMSG(_("E389: Couldn't find pattern"));
5201 }
5202 if (action == ACTION_SHOW || action == ACTION_SHOW_ALL)
5203 msg_end();
5204
5205 fpip_end:
5206 vim_free(file_line);
5207 vim_free(regmatch.regprog);
5208 vim_free(incl_regmatch.regprog);
5209 vim_free(def_regmatch.regprog);
5210
5211 #ifdef RISCOS
5212 /* Restore previous file munging state. */
5213 __riscosify_control = previous_munging;
5214 #endif
5215 }
5216
5217 static void
5218 show_pat_in_path(line, type, did_show, action, fp, lnum, count)
5219 char_u *line;
5220 int type;
5221 int did_show;
5222 int action;
5223 FILE *fp;
5224 linenr_T *lnum;
5225 long count;
5226 {
5227 char_u *p;
5228
5229 if (did_show)
5230 msg_putchar('\n'); /* cursor below last one */
5231 else if (!msg_silent)
5232 gotocmdline(TRUE); /* cursor at status line */
5233 if (got_int) /* 'q' typed at "--more--" message */
5234 return;
5235 for (;;)
5236 {
5237 p = line + STRLEN(line) - 1;
5238 if (fp != NULL)
5239 {
5240 /* We used fgets(), so get rid of newline at end */
5241 if (p >= line && *p == '\n')
5242 --p;
5243 if (p >= line && *p == '\r')
5244 --p;
5245 *(p + 1) = NUL;
5246 }
5247 if (action == ACTION_SHOW_ALL)
5248 {
5249 sprintf((char *)IObuff, "%3ld: ", count); /* show match nr */
5250 msg_puts(IObuff);
5251 sprintf((char *)IObuff, "%4ld", *lnum); /* show line nr */
5252 /* Highlight line numbers */
5253 msg_puts_attr(IObuff, hl_attr(HLF_N));
5254 MSG_PUTS(" ");
5255 }
5256 msg_prt_line(line, FALSE);
5257 out_flush(); /* show one line at a time */
5258
5259 /* Definition continues until line that doesn't end with '\' */
5260 if (got_int || type != FIND_DEFINE || p < line || *p != '\\')
5261 break;
5262
5263 if (fp != NULL)
5264 {
5265 if (vim_fgets(line, LSIZE, fp)) /* end of file */
5266 break;
5267 ++*lnum;
5268 }
5269 else
5270 {
5271 if (++*lnum > curbuf->b_ml.ml_line_count)
5272 break;
5273 line = ml_get(*lnum);
5274 }
5275 msg_putchar('\n');
5276 }
5277 }
5278 #endif
5279
5280 #ifdef FEAT_VIMINFO
5281 int
5282 read_viminfo_search_pattern(virp, force)
5283 vir_T *virp;
5284 int force;
5285 {
5286 char_u *lp;
5287 int idx = -1;
5288 int magic = FALSE;
5289 int no_scs = FALSE;
5290 int off_line = FALSE;
5291 int off_end = 0;
5292 long off = 0;
5293 int setlast = FALSE;
5294 #ifdef FEAT_SEARCH_EXTRA
5295 static int hlsearch_on = FALSE;
5296 #endif
5297 char_u *val;
5298
5299 /*
5300 * Old line types:
5301 * "/pat", "&pat": search/subst. pat
5302 * "~/pat", "~&pat": last used search/subst. pat
5303 * New line types:
5304 * "~h", "~H": hlsearch highlighting off/on
5305 * "~<magic><smartcase><line><end><off><last><which>pat"
5306 * <magic>: 'm' off, 'M' on
5307 * <smartcase>: 's' off, 'S' on
5308 * <line>: 'L' line offset, 'l' char offset
5309 * <end>: 'E' from end, 'e' from start
5310 * <off>: decimal, offset
5311 * <last>: '~' last used pattern
5312 * <which>: '/' search pat, '&' subst. pat
5313 */
5314 lp = virp->vir_line;
5315 if (lp[0] == '~' && (lp[1] == 'm' || lp[1] == 'M')) /* new line type */
5316 {
5317 if (lp[1] == 'M') /* magic on */
5318 magic = TRUE;
5319 if (lp[2] == 's')
5320 no_scs = TRUE;
5321 if (lp[3] == 'L')
5322 off_line = TRUE;
5323 if (lp[4] == 'E')
5324 off_end = SEARCH_END;
5325 lp += 5;
5326 off = getdigits(&lp);
5327 }
5328 if (lp[0] == '~') /* use this pattern for last-used pattern */
5329 {
5330 setlast = TRUE;
5331 lp++;
5332 }
5333 if (lp[0] == '/')
5334 idx = RE_SEARCH;
5335 else if (lp[0] == '&')
5336 idx = RE_SUBST;
5337 #ifdef FEAT_SEARCH_EXTRA
5338 else if (lp[0] == 'h') /* ~h: 'hlsearch' highlighting off */
5339 hlsearch_on = FALSE;
5340 else if (lp[0] == 'H') /* ~H: 'hlsearch' highlighting on */
5341 hlsearch_on = TRUE;
5342 #endif
5343 if (idx >= 0)
5344 {
5345 if (force || spats[idx].pat == NULL)
5346 {
5347 val = viminfo_readstring(virp, (int)(lp - virp->vir_line + 1),
5348 TRUE);
5349 if (val != NULL)
5350 {
5351 set_last_search_pat(val, idx, magic, setlast);
5352 vim_free(val);
5353 spats[idx].no_scs = no_scs;
5354 spats[idx].off.line = off_line;
5355 spats[idx].off.end = off_end;
5356 spats[idx].off.off = off;
5357 #ifdef FEAT_SEARCH_EXTRA
5358 if (setlast)
5359 no_hlsearch = !hlsearch_on;
5360 #endif
5361 }
5362 }
5363 }
5364 return viminfo_readline(virp);
5365 }
5366
5367 void
5368 write_viminfo_search_pattern(fp)
5369 FILE *fp;
5370 {
5371 if (get_viminfo_parameter('/') != 0)
5372 {
5373 #ifdef FEAT_SEARCH_EXTRA
5374 fprintf(fp, "\n# hlsearch on (H) or off (h):\n~%c",
5375 (no_hlsearch || find_viminfo_parameter('h') != NULL) ? 'h' : 'H');
5376 #endif
5377 wvsp_one(fp, RE_SEARCH, "", '/');
5378 wvsp_one(fp, RE_SUBST, "Substitute ", '&');
5379 }
5380 }
5381
5382 static void
5383 wvsp_one(fp, idx, s, sc)
5384 FILE *fp; /* file to write to */
5385 int idx; /* spats[] index */
5386 char *s; /* search pat */
5387 int sc; /* dir char */
5388 {
5389 if (spats[idx].pat != NULL)
5390 {
5391 fprintf(fp, _("\n# Last %sSearch Pattern:\n~"), s);
5392 /* off.dir is not stored, it's reset to forward */
5393 fprintf(fp, "%c%c%c%c%ld%s%c",
5394 spats[idx].magic ? 'M' : 'm', /* magic */
5395 spats[idx].no_scs ? 's' : 'S', /* smartcase */
5396 spats[idx].off.line ? 'L' : 'l', /* line offset */
5397 spats[idx].off.end ? 'E' : 'e', /* offset from end */
5398 spats[idx].off.off, /* offset */
5399 last_idx == idx ? "~" : "", /* last used pat */
5400 sc);
5401 viminfo_writestring(fp, spats[idx].pat);
5402 }
5403 }
5404 #endif /* FEAT_VIMINFO */
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