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Merged from the latest developing branch.
[MacVim.git] / src / search.c
blobced1b90921327f10a965eedb89ef119546c438c2
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 # ifdef FEAT_RIGHTLEFT
350 if (mr_pattern_alloced)
351 {
352 vim_free(mr_pattern);
353 mr_pattern_alloced = FALSE;
354 mr_pattern = NULL;
355 }
356 # endif
357 }
358 #endif
359
360 /*
361 * Return TRUE when case should be ignored for search pattern "pat".
362 * Uses the 'ignorecase' and 'smartcase' options.
363 */
364 int
365 ignorecase(pat)
366 char_u *pat;
367 {
368 char_u *p;
369 int ic;
370
371 ic = p_ic;
372 if (ic && !no_smartcase && p_scs
373 #ifdef FEAT_INS_EXPAND
374 && !(ctrl_x_mode && curbuf->b_p_inf)
375 #endif
376 )
377 {
378 /* don't ignore case if pattern has uppercase */
379 for (p = pat; *p; )
380 {
381 #ifdef FEAT_MBYTE
382 int l;
383
384 if (has_mbyte && (l = (*mb_ptr2len)(p)) > 1)
385 {
386 if (enc_utf8 && utf_isupper(utf_ptr2char(p)))
387 {
388 ic = FALSE;
389 break;
390 }
391 p += l;
392 }
393 else
394 #endif
395 if (*p == '\\')
396 {
397 if (p[1] == '_' && p[2] != NUL) /* skip "\_X" */
398 p += 3;
399 else if (p[1] == '%' && p[2] != NUL) /* skip "\%X" */
400 p += 3;
401 else if (p[1] != NUL) /* skip "\X" */
402 p += 2;
403 else
404 p += 1;
405 }
406 else if (MB_ISUPPER(*p))
407 {
408 ic = FALSE;
409 break;
410 }
411 else
412 ++p;
413 }
414 }
415 no_smartcase = FALSE;
416
417 return ic;
418 }
419
420 char_u *
421 last_search_pat()
422 {
423 return spats[last_idx].pat;
424 }
425
426 /*
427 * Reset search direction to forward. For "gd" and "gD" commands.
428 */
429 void
430 reset_search_dir()
431 {
432 spats[0].off.dir = '/';
433 #if defined(FEAT_EVAL)
434 set_vv_searchforward();
435 #endif
436 }
437
438 #if defined(FEAT_EVAL) || defined(FEAT_VIMINFO)
439 /*
440 * Set the last search pattern. For ":let @/ =" and viminfo.
441 * Also set the saved search pattern, so that this works in an autocommand.
442 */
443 void
444 set_last_search_pat(s, idx, magic, setlast)
445 char_u *s;
446 int idx;
447 int magic;
448 int setlast;
449 {
450 vim_free(spats[idx].pat);
451 /* An empty string means that nothing should be matched. */
452 if (*s == NUL)
453 spats[idx].pat = NULL;
454 else
455 spats[idx].pat = vim_strsave(s);
456 spats[idx].magic = magic;
457 spats[idx].no_scs = FALSE;
458 spats[idx].off.dir = '/';
459 #if defined(FEAT_EVAL)
460 set_vv_searchforward();
461 #endif
462 spats[idx].off.line = FALSE;
463 spats[idx].off.end = FALSE;
464 spats[idx].off.off = 0;
465 if (setlast)
466 last_idx = idx;
467 if (save_level)
468 {
469 vim_free(saved_spats[idx].pat);
470 saved_spats[idx] = spats[0];
471 if (spats[idx].pat == NULL)
472 saved_spats[idx].pat = NULL;
473 else
474 saved_spats[idx].pat = vim_strsave(spats[idx].pat);
475 saved_last_idx = last_idx;
476 }
477 # ifdef FEAT_SEARCH_EXTRA
478 /* If 'hlsearch' set and search pat changed: need redraw. */
479 if (p_hls && idx == last_idx && !no_hlsearch)
480 redraw_all_later(SOME_VALID);
481 # endif
482 }
483 #endif
484
485 #ifdef FEAT_SEARCH_EXTRA
486 /*
487 * Get a regexp program for the last used search pattern.
488 * This is used for highlighting all matches in a window.
489 * Values returned in regmatch->regprog and regmatch->rmm_ic.
490 */
491 void
492 last_pat_prog(regmatch)
493 regmmatch_T *regmatch;
494 {
495 if (spats[last_idx].pat == NULL)
496 {
497 regmatch->regprog = NULL;
498 return;
499 }
500 ++emsg_off; /* So it doesn't beep if bad expr */
501 (void)search_regcomp((char_u *)"", 0, last_idx, SEARCH_KEEP, regmatch);
502 --emsg_off;
503 }
504 #endif
505
506 /*
507 * lowest level search function.
508 * Search for 'count'th occurrence of pattern 'pat' in direction 'dir'.
509 * Start at position 'pos' and return the found position in 'pos'.
510 *
511 * if (options & SEARCH_MSG) == 0 don't give any messages
512 * if (options & SEARCH_MSG) == SEARCH_NFMSG don't give 'notfound' messages
513 * if (options & SEARCH_MSG) == SEARCH_MSG give all messages
514 * if (options & SEARCH_HIS) put search pattern in history
515 * if (options & SEARCH_END) return position at end of match
516 * if (options & SEARCH_START) accept match at pos itself
517 * if (options & SEARCH_KEEP) keep previous search pattern
518 * if (options & SEARCH_FOLD) match only once in a closed fold
519 * if (options & SEARCH_PEEK) check for typed char, cancel search
520 *
521 * Return FAIL (zero) for failure, non-zero for success.
522 * When FEAT_EVAL is defined, returns the index of the first matching
523 * subpattern plus one; one if there was none.
524 */
525 /*ARGSUSED*/
526 int
527 searchit(win, buf, pos, dir, pat, count, options, pat_use, stop_lnum, tm)
528 win_T *win; /* window to search in; can be NULL for a
529 buffer without a window! */
530 buf_T *buf;
531 pos_T *pos;
532 int dir;
533 char_u *pat;
534 long count;
535 int options;
536 int pat_use; /* which pattern to use when "pat" is empty */
537 linenr_T stop_lnum; /* stop after this line number when != 0 */
538 proftime_T *tm; /* timeout limit or NULL */
539 {
540 int found;
541 linenr_T lnum; /* no init to shut up Apollo cc */
542 regmmatch_T regmatch;
543 char_u *ptr;
544 colnr_T matchcol;
545 lpos_T endpos;
546 lpos_T matchpos;
547 int loop;
548 pos_T start_pos;
549 int at_first_line;
550 int extra_col;
551 int match_ok;
552 long nmatched;
553 int submatch = 0;
554 int save_called_emsg = called_emsg;
555 #ifdef FEAT_SEARCH_EXTRA
556 int break_loop = FALSE;
557 #else
558 # define break_loop FALSE
559 #endif
560
561 if (search_regcomp(pat, RE_SEARCH, pat_use,
562 (options & (SEARCH_HIS + SEARCH_KEEP)), &regmatch) == FAIL)
563 {
564 if ((options & SEARCH_MSG) && !rc_did_emsg)
565 EMSG2(_("E383: Invalid search string: %s"), mr_pattern);
566 return FAIL;
567 }
568
569 /* When not accepting a match at the start position set "extra_col" to a
570 * non-zero value. Don't do that when starting at MAXCOL, since MAXCOL +
571 * 1 is zero. */
572 if ((options & SEARCH_START) || pos->col == MAXCOL)
573 extra_col = 0;
574 #ifdef FEAT_MBYTE
575 /* Watch out for the "col" being MAXCOL - 2, used in a closed fold. */
576 else if (has_mbyte && pos->lnum >= 1 && pos->lnum <= buf->b_ml.ml_line_count
577 && pos->col < MAXCOL - 2)
578 {
579 ptr = ml_get_buf(buf, pos->lnum, FALSE) + pos->col;
580 if (*ptr == NUL)
581 extra_col = 1;
582 else
583 extra_col = (*mb_ptr2len)(ptr);
584 }
585 #endif
586 else
587 extra_col = 1;
588
589 /*
590 * find the string
591 */
592 called_emsg = FALSE;
593 do /* loop for count */
594 {
595 start_pos = *pos; /* remember start pos for detecting no match */
596 found = 0; /* default: not found */
597 at_first_line = TRUE; /* default: start in first line */
598 if (pos->lnum == 0) /* correct lnum for when starting in line 0 */
599 {
600 pos->lnum = 1;
601 pos->col = 0;
602 at_first_line = FALSE; /* not in first line now */
603 }
604
605 /*
606 * Start searching in current line, unless searching backwards and
607 * we're in column 0.
608 * If we are searching backwards, in column 0, and not including the
609 * current position, gain some efficiency by skipping back a line.
610 * Otherwise begin the search in the current line.
611 */
612 if (dir == BACKWARD && start_pos.col == 0
613 && (options & SEARCH_START) == 0)
614 {
615 lnum = pos->lnum - 1;
616 at_first_line = FALSE;
617 }
618 else
619 lnum = pos->lnum;
620
621 for (loop = 0; loop <= 1; ++loop) /* loop twice if 'wrapscan' set */
622 {
623 for ( ; lnum > 0 && lnum <= buf->b_ml.ml_line_count;
624 lnum += dir, at_first_line = FALSE)
625 {
626 /* Stop after checking "stop_lnum", if it's set. */
627 if (stop_lnum != 0 && (dir == FORWARD
628 ? lnum > stop_lnum : lnum < stop_lnum))
629 break;
630 #ifdef FEAT_RELTIME
631 /* Stop after passing the "tm" time limit. */
632 if (tm != NULL && profile_passed_limit(tm))
633 break;
634 #endif
635
636 /*
637 * Look for a match somewhere in line "lnum".
638 */
639 nmatched = vim_regexec_multi(&regmatch, win, buf,
640 lnum, (colnr_T)0,
641 #ifdef FEAT_RELTIME
642 tm
643 #else
644 NULL
645 #endif
646 );
647 /* Abort searching on an error (e.g., out of stack). */
648 if (called_emsg)
649 break;
650 if (nmatched > 0)
651 {
652 /* match may actually be in another line when using \zs */
653 matchpos = regmatch.startpos[0];
654 endpos = regmatch.endpos[0];
655 #ifdef FEAT_EVAL
656 submatch = first_submatch(&regmatch);
657 #endif
658 /* "lnum" may be past end of buffer for "\n\zs". */
659 if (lnum + matchpos.lnum > buf->b_ml.ml_line_count)
660 ptr = (char_u *)"";
661 else
662 ptr = ml_get_buf(buf, lnum + matchpos.lnum, FALSE);
663
664 /*
665 * Forward search in the first line: match should be after
666 * the start position. If not, continue at the end of the
667 * match (this is vi compatible) or on the next char.
668 */
669 if (dir == FORWARD && at_first_line)
670 {
671 match_ok = TRUE;
672 /*
673 * When the match starts in a next line it's certainly
674 * past the start position.
675 * When match lands on a NUL the cursor will be put
676 * one back afterwards, compare with that position,
677 * otherwise "/$" will get stuck on end of line.
678 */
679 while (matchpos.lnum == 0
680 && ((options & SEARCH_END)
681 ? (nmatched == 1
682 && (int)endpos.col - 1
683 < (int)start_pos.col + extra_col)
684 : ((int)matchpos.col
685 - (ptr[matchpos.col] == NUL)
686 < (int)start_pos.col + extra_col)))
687 {
688 /*
689 * If vi-compatible searching, continue at the end
690 * of the match, otherwise continue one position
691 * forward.
692 */
693 if (vim_strchr(p_cpo, CPO_SEARCH) != NULL)
694 {
695 if (nmatched > 1)
696 {
697 /* end is in next line, thus no match in
698 * this line */
699 match_ok = FALSE;
700 break;
701 }
702 matchcol = endpos.col;
703 /* for empty match: advance one char */
704 if (matchcol == matchpos.col
705 && ptr[matchcol] != NUL)
706 {
707 #ifdef FEAT_MBYTE
708 if (has_mbyte)
709 matchcol +=
710 (*mb_ptr2len)(ptr + matchcol);
711 else
712 #endif
713 ++matchcol;
714 }
715 }
716 else
717 {
718 matchcol = matchpos.col;
719 if (ptr[matchcol] != NUL)
720 {
721 #ifdef FEAT_MBYTE
722 if (has_mbyte)
723 matchcol += (*mb_ptr2len)(ptr
724 + matchcol);
725 else
726 #endif
727 ++matchcol;
728 }
729 }
730 if (ptr[matchcol] == NUL
731 || (nmatched = vim_regexec_multi(&regmatch,
732 win, buf, lnum + matchpos.lnum,
733 matchcol,
734 #ifdef FEAT_RELTIME
735 tm
736 #else
737 NULL
738 #endif
739 )) == 0)
740 {
741 match_ok = FALSE;
742 break;
743 }
744 matchpos = regmatch.startpos[0];
745 endpos = regmatch.endpos[0];
746 # ifdef FEAT_EVAL
747 submatch = first_submatch(&regmatch);
748 # endif
749
750 /* Need to get the line pointer again, a
751 * multi-line search may have made it invalid. */
752 ptr = ml_get_buf(buf, lnum + matchpos.lnum, FALSE);
753 }
754 if (!match_ok)
755 continue;
756 }
757 if (dir == BACKWARD)
758 {
759 /*
760 * Now, if there are multiple matches on this line,
761 * we have to get the last one. Or the last one before
762 * the cursor, if we're on that line.
763 * When putting the new cursor at the end, compare
764 * relative to the end of the match.
765 */
766 match_ok = FALSE;
767 for (;;)
768 {
769 /* Remember a position that is before the start
770 * position, we use it if it's the last match in
771 * the line. Always accept a position after
772 * wrapping around. */
773 if (loop
774 || ((options & SEARCH_END)
775 ? (lnum + regmatch.endpos[0].lnum
776 < start_pos.lnum
777 || (lnum + regmatch.endpos[0].lnum
778 == start_pos.lnum
779 && (int)regmatch.endpos[0].col - 1
780 + extra_col
781 <= (int)start_pos.col))
782 : (lnum + regmatch.startpos[0].lnum
783 < start_pos.lnum
784 || (lnum + regmatch.startpos[0].lnum
785 == start_pos.lnum
786 && (int)regmatch.startpos[0].col
787 + extra_col
788 <= (int)start_pos.col))))
789 {
790 match_ok = TRUE;
791 matchpos = regmatch.startpos[0];
792 endpos = regmatch.endpos[0];
793 # ifdef FEAT_EVAL
794 submatch = first_submatch(&regmatch);
795 # endif
796 }
797 else
798 break;
799
800 /*
801 * We found a valid match, now check if there is
802 * another one after it.
803 * If vi-compatible searching, continue at the end
804 * of the match, otherwise continue one position
805 * forward.
806 */
807 if (vim_strchr(p_cpo, CPO_SEARCH) != NULL)
808 {
809 if (nmatched > 1)
810 break;
811 matchcol = endpos.col;
812 /* for empty match: advance one char */
813 if (matchcol == matchpos.col
814 && ptr[matchcol] != NUL)
815 {
816 #ifdef FEAT_MBYTE
817 if (has_mbyte)
818 matchcol +=
819 (*mb_ptr2len)(ptr + matchcol);
820 else
821 #endif
822 ++matchcol;
823 }
824 }
825 else
826 {
827 /* Stop when the match is in a next line. */
828 if (matchpos.lnum > 0)
829 break;
830 matchcol = matchpos.col;
831 if (ptr[matchcol] != NUL)
832 {
833 #ifdef FEAT_MBYTE
834 if (has_mbyte)
835 matchcol +=
836 (*mb_ptr2len)(ptr + matchcol);
837 else
838 #endif
839 ++matchcol;
840 }
841 }
842 if (ptr[matchcol] == NUL
843 || (nmatched = vim_regexec_multi(&regmatch,
844 win, buf, lnum + matchpos.lnum,
845 matchcol,
846 #ifdef FEAT_RELTIME
847 tm
848 #else
849 NULL
850 #endif
851 )) == 0)
852 break;
853
854 /* Need to get the line pointer again, a
855 * multi-line search may have made it invalid. */
856 ptr = ml_get_buf(buf, lnum + matchpos.lnum, FALSE);
857 }
858
859 /*
860 * If there is only a match after the cursor, skip
861 * this match.
862 */
863 if (!match_ok)
864 continue;
865 }
866
867 /* With the SEARCH_END option move to the last character
868 * of the match. Don't do it for an empty match, end
869 * should be same as start then. */
870 if (options & SEARCH_END && !(options & SEARCH_NOOF)
871 && !(matchpos.lnum == endpos.lnum
872 && matchpos.col == endpos.col))
873 {
874 /* For a match in the first column, set the position
875 * on the NUL in the previous line. */
876 pos->lnum = lnum + endpos.lnum;
877 pos->col = endpos.col;
878 if (endpos.col == 0)
879 {
880 if (pos->lnum > 1) /* just in case */
881 {
882 --pos->lnum;
883 pos->col = (colnr_T)STRLEN(ml_get_buf(buf,
884 pos->lnum, FALSE));
885 }
886 }
887 else
888 {
889 --pos->col;
890 #ifdef FEAT_MBYTE
891 if (has_mbyte
892 && pos->lnum <= buf->b_ml.ml_line_count)
893 {
894 ptr = ml_get_buf(buf, pos->lnum, FALSE);
895 pos->col -= (*mb_head_off)(ptr, ptr + pos->col);
896 }
897 #endif
898 }
899 }
900 else
901 {
902 pos->lnum = lnum + matchpos.lnum;
903 pos->col = matchpos.col;
904 }
905 #ifdef FEAT_VIRTUALEDIT
906 pos->coladd = 0;
907 #endif
908 found = 1;
909
910 /* Set variables used for 'incsearch' highlighting. */
911 search_match_lines = endpos.lnum - matchpos.lnum;
912 search_match_endcol = endpos.col;
913 break;
914 }
915 line_breakcheck(); /* stop if ctrl-C typed */
916 if (got_int)
917 break;
918
919 #ifdef FEAT_SEARCH_EXTRA
920 /* Cancel searching if a character was typed. Used for
921 * 'incsearch'. Don't check too often, that would slowdown
922 * searching too much. */
923 if ((options & SEARCH_PEEK)
924 && ((lnum - pos->lnum) & 0x3f) == 0
925 && char_avail())
926 {
927 break_loop = TRUE;
928 break;
929 }
930 #endif
931
932 if (loop && lnum == start_pos.lnum)
933 break; /* if second loop, stop where started */
934 }
935 at_first_line = FALSE;
936
937 /*
938 * Stop the search if wrapscan isn't set, "stop_lnum" is
939 * specified, after an interrupt, after a match and after looping
940 * twice.
941 */
942 if (!p_ws || stop_lnum != 0 || got_int || called_emsg
943 || break_loop || found || loop)
944 break;
945
946 /*
947 * If 'wrapscan' is set we continue at the other end of the file.
948 * If 'shortmess' does not contain 's', we give a message.
949 * This message is also remembered in keep_msg for when the screen
950 * is redrawn. The keep_msg is cleared whenever another message is
951 * written.
952 */
953 if (dir == BACKWARD) /* start second loop at the other end */
954 lnum = buf->b_ml.ml_line_count;
955 else
956 lnum = 1;
957 if (!shortmess(SHM_SEARCH) && (options & SEARCH_MSG))
958 give_warning((char_u *)_(dir == BACKWARD
959 ? top_bot_msg : bot_top_msg), TRUE);
960 }
961 if (got_int || called_emsg || break_loop)
962 break;
963 }
964 while (--count > 0 && found); /* stop after count matches or no match */
965
966 vim_free(regmatch.regprog);
967
968 called_emsg |= save_called_emsg;
969
970 if (!found) /* did not find it */
971 {
972 if (got_int)
973 EMSG(_(e_interr));
974 else if ((options & SEARCH_MSG) == SEARCH_MSG)
975 {
976 if (p_ws)
977 EMSG2(_(e_patnotf2), mr_pattern);
978 else if (lnum == 0)
979 EMSG2(_("E384: search hit TOP without match for: %s"),
980 mr_pattern);
981 else
982 EMSG2(_("E385: search hit BOTTOM without match for: %s"),
983 mr_pattern);
984 }
985 return FAIL;
986 }
987
988 /* A pattern like "\n\zs" may go past the last line. */
989 if (pos->lnum > buf->b_ml.ml_line_count)
990 {
991 pos->lnum = buf->b_ml.ml_line_count;
992 pos->col = (int)STRLEN(ml_get_buf(buf, pos->lnum, FALSE));
993 if (pos->col > 0)
994 --pos->col;
995 }
996
997 return submatch + 1;
998 }
999
1000 #ifdef FEAT_EVAL
1001 void
1002 set_search_direction(cdir)
1003 int cdir;
1004 {
1005 spats[0].off.dir = cdir;
1006 }
1007
1008 static void
1009 set_vv_searchforward()
1010 {
1011 set_vim_var_nr(VV_SEARCHFORWARD, (long)(spats[0].off.dir == '/'));
1012 }
1013
1014 /*
1015 * Return the number of the first subpat that matched.
1016 */
1017 static int
1018 first_submatch(rp)
1019 regmmatch_T *rp;
1020 {
1021 int submatch;
1022
1023 for (submatch = 1; ; ++submatch)
1024 {
1025 if (rp->startpos[submatch].lnum >= 0)
1026 break;
1027 if (submatch == 9)
1028 {
1029 submatch = 0;
1030 break;
1031 }
1032 }
1033 return submatch;
1034 }
1035 #endif
1036
1037 /*
1038 * Highest level string search function.
1039 * Search for the 'count'th occurrence of pattern 'pat' in direction 'dirc'
1040 * If 'dirc' is 0: use previous dir.
1041 * If 'pat' is NULL or empty : use previous string.
1042 * If 'options & SEARCH_REV' : go in reverse of previous dir.
1043 * If 'options & SEARCH_ECHO': echo the search command and handle options
1044 * If 'options & SEARCH_MSG' : may give error message
1045 * If 'options & SEARCH_OPT' : interpret optional flags
1046 * If 'options & SEARCH_HIS' : put search pattern in history
1047 * If 'options & SEARCH_NOOF': don't add offset to position
1048 * If 'options & SEARCH_MARK': set previous context mark
1049 * If 'options & SEARCH_KEEP': keep previous search pattern
1050 * If 'options & SEARCH_START': accept match at curpos itself
1051 * If 'options & SEARCH_PEEK': check for typed char, cancel search
1052 *
1053 * Careful: If spats[0].off.line == TRUE and spats[0].off.off == 0 this
1054 * makes the movement linewise without moving the match position.
1055 *
1056 * return 0 for failure, 1 for found, 2 for found and line offset added
1057 */
1058 int
1059 do_search(oap, dirc, pat, count, options, tm)
1060 oparg_T *oap; /* can be NULL */
1061 int dirc; /* '/' or '?' */
1062 char_u *pat;
1063 long count;
1064 int options;
1065 proftime_T *tm; /* timeout limit or NULL */
1066 {
1067 pos_T pos; /* position of the last match */
1068 char_u *searchstr;
1069 struct soffset old_off;
1070 int retval; /* Return value */
1071 char_u *p;
1072 long c;
1073 char_u *dircp;
1074 char_u *strcopy = NULL;
1075 char_u *ps;
1076
1077 /*
1078 * A line offset is not remembered, this is vi compatible.
1079 */
1080 if (spats[0].off.line && vim_strchr(p_cpo, CPO_LINEOFF) != NULL)
1081 {
1082 spats[0].off.line = FALSE;
1083 spats[0].off.off = 0;
1084 }
1085
1086 /*
1087 * Save the values for when (options & SEARCH_KEEP) is used.
1088 * (there is no "if ()" around this because gcc wants them initialized)
1089 */
1090 old_off = spats[0].off;
1091
1092 pos = curwin->w_cursor; /* start searching at the cursor position */
1093
1094 /*
1095 * Find out the direction of the search.
1096 */
1097 if (dirc == 0)
1098 dirc = spats[0].off.dir;
1099 else
1100 {
1101 spats[0].off.dir = dirc;
1102 #if defined(FEAT_EVAL)
1103 set_vv_searchforward();
1104 #endif
1105 }
1106 if (options & SEARCH_REV)
1107 {
1108 #ifdef WIN32
1109 /* There is a bug in the Visual C++ 2.2 compiler which means that
1110 * dirc always ends up being '/' */
1111 dirc = (dirc == '/') ? '?' : '/';
1112 #else
1113 if (dirc == '/')
1114 dirc = '?';
1115 else
1116 dirc = '/';
1117 #endif
1118 }
1119
1120 #ifdef FEAT_FOLDING
1121 /* If the cursor is in a closed fold, don't find another match in the same
1122 * fold. */
1123 if (dirc == '/')
1124 {
1125 if (hasFolding(pos.lnum, NULL, &pos.lnum))
1126 pos.col = MAXCOL - 2; /* avoid overflow when adding 1 */
1127 }
1128 else
1129 {
1130 if (hasFolding(pos.lnum, &pos.lnum, NULL))
1131 pos.col = 0;
1132 }
1133 #endif
1134
1135 #ifdef FEAT_SEARCH_EXTRA
1136 /*
1137 * Turn 'hlsearch' highlighting back on.
1138 */
1139 if (no_hlsearch && !(options & SEARCH_KEEP))
1140 {
1141 redraw_all_later(SOME_VALID);
1142 no_hlsearch = FALSE;
1143 }
1144 #endif
1145
1146 /*
1147 * Repeat the search when pattern followed by ';', e.g. "/foo/;?bar".
1148 */
1149 for (;;)
1150 {
1151 searchstr = pat;
1152 dircp = NULL;
1153 /* use previous pattern */
1154 if (pat == NULL || *pat == NUL || *pat == dirc)
1155 {
1156 if (spats[RE_SEARCH].pat == NULL) /* no previous pattern */
1157 {
1158 EMSG(_(e_noprevre));
1159 retval = 0;
1160 goto end_do_search;
1161 }
1162 /* make search_regcomp() use spats[RE_SEARCH].pat */
1163 searchstr = (char_u *)"";
1164 }
1165
1166 if (pat != NULL && *pat != NUL) /* look for (new) offset */
1167 {
1168 /*
1169 * Find end of regular expression.
1170 * If there is a matching '/' or '?', toss it.
1171 */
1172 ps = strcopy;
1173 p = skip_regexp(pat, dirc, (int)p_magic, &strcopy);
1174 if (strcopy != ps)
1175 {
1176 /* made a copy of "pat" to change "\?" to "?" */
1177 searchcmdlen += (int)(STRLEN(pat) - STRLEN(strcopy));
1178 pat = strcopy;
1179 searchstr = strcopy;
1180 }
1181 if (*p == dirc)
1182 {
1183 dircp = p; /* remember where we put the NUL */
1184 *p++ = NUL;
1185 }
1186 spats[0].off.line = FALSE;
1187 spats[0].off.end = FALSE;
1188 spats[0].off.off = 0;
1189 /*
1190 * Check for a line offset or a character offset.
1191 * For get_address (echo off) we don't check for a character
1192 * offset, because it is meaningless and the 's' could be a
1193 * substitute command.
1194 */
1195 if (*p == '+' || *p == '-' || VIM_ISDIGIT(*p))
1196 spats[0].off.line = TRUE;
1197 else if ((options & SEARCH_OPT) &&
1198 (*p == 'e' || *p == 's' || *p == 'b'))
1199 {
1200 if (*p == 'e') /* end */
1201 spats[0].off.end = SEARCH_END;
1202 ++p;
1203 }
1204 if (VIM_ISDIGIT(*p) || *p == '+' || *p == '-') /* got an offset */
1205 {
1206 /* 'nr' or '+nr' or '-nr' */
1207 if (VIM_ISDIGIT(*p) || VIM_ISDIGIT(*(p + 1)))
1208 spats[0].off.off = atol((char *)p);
1209 else if (*p == '-') /* single '-' */
1210 spats[0].off.off = -1;
1211 else /* single '+' */
1212 spats[0].off.off = 1;
1213 ++p;
1214 while (VIM_ISDIGIT(*p)) /* skip number */
1215 ++p;
1216 }
1217
1218 /* compute length of search command for get_address() */
1219 searchcmdlen += (int)(p - pat);
1220
1221 pat = p; /* put pat after search command */
1222 }
1223
1224 if ((options & SEARCH_ECHO) && messaging()
1225 && !cmd_silent && msg_silent == 0)
1226 {
1227 char_u *msgbuf;
1228 char_u *trunc;
1229
1230 if (*searchstr == NUL)
1231 p = spats[last_idx].pat;
1232 else
1233 p = searchstr;
1234 msgbuf = alloc((unsigned)(STRLEN(p) + 40));
1235 if (msgbuf != NULL)
1236 {
1237 msgbuf[0] = dirc;
1238 #ifdef FEAT_MBYTE
1239 if (enc_utf8 && utf_iscomposing(utf_ptr2char(p)))
1240 {
1241 /* Use a space to draw the composing char on. */
1242 msgbuf[1] = ' ';
1243 STRCPY(msgbuf + 2, p);
1244 }
1245 else
1246 #endif
1247 STRCPY(msgbuf + 1, p);
1248 if (spats[0].off.line || spats[0].off.end || spats[0].off.off)
1249 {
1250 p = msgbuf + STRLEN(msgbuf);
1251 *p++ = dirc;
1252 if (spats[0].off.end)
1253 *p++ = 'e';
1254 else if (!spats[0].off.line)
1255 *p++ = 's';
1256 if (spats[0].off.off > 0 || spats[0].off.line)
1257 *p++ = '+';
1258 if (spats[0].off.off != 0 || spats[0].off.line)
1259 sprintf((char *)p, "%ld", spats[0].off.off);
1260 else
1261 *p = NUL;
1262 }
1263
1264 msg_start();
1265 trunc = msg_strtrunc(msgbuf, FALSE);
1266
1267 #ifdef FEAT_RIGHTLEFT
1268 /* The search pattern could be shown on the right in rightleft
1269 * mode, but the 'ruler' and 'showcmd' area use it too, thus
1270 * it would be blanked out again very soon. Show it on the
1271 * left, but do reverse the text. */
1272 if (curwin->w_p_rl && *curwin->w_p_rlc == 's')
1273 {
1274 char_u *r;
1275
1276 r = reverse_text(trunc != NULL ? trunc : msgbuf);
1277 if (r != NULL)
1278 {
1279 vim_free(trunc);
1280 trunc = r;
1281 }
1282 }
1283 #endif
1284 if (trunc != NULL)
1285 {
1286 msg_outtrans(trunc);
1287 vim_free(trunc);
1288 }
1289 else
1290 msg_outtrans(msgbuf);
1291 msg_clr_eos();
1292 msg_check();
1293 vim_free(msgbuf);
1294
1295 gotocmdline(FALSE);
1296 out_flush();
1297 msg_nowait = TRUE; /* don't wait for this message */
1298 }
1299 }
1300
1301 /*
1302 * If there is a character offset, subtract it from the current
1303 * position, so we don't get stuck at "?pat?e+2" or "/pat/s-2".
1304 * Skip this if pos.col is near MAXCOL (closed fold).
1305 * This is not done for a line offset, because then we would not be vi
1306 * compatible.
1307 */
1308 if (!spats[0].off.line && spats[0].off.off && pos.col < MAXCOL - 2)
1309 {
1310 if (spats[0].off.off > 0)
1311 {
1312 for (c = spats[0].off.off; c; --c)
1313 if (decl(&pos) == -1)
1314 break;
1315 if (c) /* at start of buffer */
1316 {
1317 pos.lnum = 0; /* allow lnum == 0 here */
1318 pos.col = MAXCOL;
1319 }
1320 }
1321 else
1322 {
1323 for (c = spats[0].off.off; c; ++c)
1324 if (incl(&pos) == -1)
1325 break;
1326 if (c) /* at end of buffer */
1327 {
1328 pos.lnum = curbuf->b_ml.ml_line_count + 1;
1329 pos.col = 0;
1330 }
1331 }
1332 }
1333
1334 #ifdef FEAT_FKMAP /* when in Farsi mode, reverse the character flow */
1335 if (p_altkeymap && curwin->w_p_rl)
1336 lrFswap(searchstr,0);
1337 #endif
1338
1339 c = searchit(curwin, curbuf, &pos, dirc == '/' ? FORWARD : BACKWARD,
1340 searchstr, count, spats[0].off.end + (options &
1341 (SEARCH_KEEP + SEARCH_PEEK + SEARCH_HIS
1342 + SEARCH_MSG + SEARCH_START
1343 + ((pat != NULL && *pat == ';') ? 0 : SEARCH_NOOF))),
1344 RE_LAST, (linenr_T)0, tm);
1345
1346 if (dircp != NULL)
1347 *dircp = dirc; /* restore second '/' or '?' for normal_cmd() */
1348 if (c == FAIL)
1349 {
1350 retval = 0;
1351 goto end_do_search;
1352 }
1353 if (spats[0].off.end && oap != NULL)
1354 oap->inclusive = TRUE; /* 'e' includes last character */
1355
1356 retval = 1; /* pattern found */
1357
1358 /*
1359 * Add character and/or line offset
1360 */
1361 if (!(options & SEARCH_NOOF) || (pat != NULL && *pat == ';'))
1362 {
1363 if (spats[0].off.line) /* Add the offset to the line number. */
1364 {
1365 c = pos.lnum + spats[0].off.off;
1366 if (c < 1)
1367 pos.lnum = 1;
1368 else if (c > curbuf->b_ml.ml_line_count)
1369 pos.lnum = curbuf->b_ml.ml_line_count;
1370 else
1371 pos.lnum = c;
1372 pos.col = 0;
1373
1374 retval = 2; /* pattern found, line offset added */
1375 }
1376 else if (pos.col < MAXCOL - 2) /* just in case */
1377 {
1378 /* to the right, check for end of file */
1379 c = spats[0].off.off;
1380 if (c > 0)
1381 {
1382 while (c-- > 0)
1383 if (incl(&pos) == -1)
1384 break;
1385 }
1386 /* to the left, check for start of file */
1387 else
1388 {
1389 while (c++ < 0)
1390 if (decl(&pos) == -1)
1391 break;
1392 }
1393 }
1394 }
1395
1396 /*
1397 * The search command can be followed by a ';' to do another search.
1398 * For example: "/pat/;/foo/+3;?bar"
1399 * This is like doing another search command, except:
1400 * - The remembered direction '/' or '?' is from the first search.
1401 * - When an error happens the cursor isn't moved at all.
1402 * Don't do this when called by get_address() (it handles ';' itself).
1403 */
1404 if (!(options & SEARCH_OPT) || pat == NULL || *pat != ';')
1405 break;
1406
1407 dirc = *++pat;
1408 if (dirc != '?' && dirc != '/')
1409 {
1410 retval = 0;
1411 EMSG(_("E386: Expected '?' or '/' after ';'"));
1412 goto end_do_search;
1413 }
1414 ++pat;
1415 }
1416
1417 if (options & SEARCH_MARK)
1418 setpcmark();
1419 curwin->w_cursor = pos;
1420 curwin->w_set_curswant = TRUE;
1421
1422 end_do_search:
1423 if (options & SEARCH_KEEP)
1424 spats[0].off = old_off;
1425 vim_free(strcopy);
1426
1427 return retval;
1428 }
1429
1430 #if defined(FEAT_INS_EXPAND) || defined(PROTO)
1431 /*
1432 * search_for_exact_line(buf, pos, dir, pat)
1433 *
1434 * Search for a line starting with the given pattern (ignoring leading
1435 * white-space), starting from pos and going in direction dir. pos will
1436 * contain the position of the match found. Blank lines match only if
1437 * ADDING is set. if p_ic is set then the pattern must be in lowercase.
1438 * Return OK for success, or FAIL if no line found.
1439 */
1440 int
1441 search_for_exact_line(buf, pos, dir, pat)
1442 buf_T *buf;
1443 pos_T *pos;
1444 int dir;
1445 char_u *pat;
1446 {
1447 linenr_T start = 0;
1448 char_u *ptr;
1449 char_u *p;
1450
1451 if (buf->b_ml.ml_line_count == 0)
1452 return FAIL;
1453 for (;;)
1454 {
1455 pos->lnum += dir;
1456 if (pos->lnum < 1)
1457 {
1458 if (p_ws)
1459 {
1460 pos->lnum = buf->b_ml.ml_line_count;
1461 if (!shortmess(SHM_SEARCH))
1462 give_warning((char_u *)_(top_bot_msg), TRUE);
1463 }
1464 else
1465 {
1466 pos->lnum = 1;
1467 break;
1468 }
1469 }
1470 else if (pos->lnum > buf->b_ml.ml_line_count)
1471 {
1472 if (p_ws)
1473 {
1474 pos->lnum = 1;
1475 if (!shortmess(SHM_SEARCH))
1476 give_warning((char_u *)_(bot_top_msg), TRUE);
1477 }
1478 else
1479 {
1480 pos->lnum = 1;
1481 break;
1482 }
1483 }
1484 if (pos->lnum == start)
1485 break;
1486 if (start == 0)
1487 start = pos->lnum;
1488 ptr = ml_get_buf(buf, pos->lnum, FALSE);
1489 p = skipwhite(ptr);
1490 pos->col = (colnr_T) (p - ptr);
1491
1492 /* when adding lines the matching line may be empty but it is not
1493 * ignored because we are interested in the next line -- Acevedo */
1494 if ((compl_cont_status & CONT_ADDING)
1495 && !(compl_cont_status & CONT_SOL))
1496 {
1497 if ((p_ic ? MB_STRICMP(p, pat) : STRCMP(p, pat)) == 0)
1498 return OK;
1499 }
1500 else if (*p != NUL) /* ignore empty lines */
1501 { /* expanding lines or words */
1502 if ((p_ic ? MB_STRNICMP(p, pat, compl_length)
1503 : STRNCMP(p, pat, compl_length)) == 0)
1504 return OK;
1505 }
1506 }
1507 return FAIL;
1508 }
1509 #endif /* FEAT_INS_EXPAND */
1510
1511 /*
1512 * Character Searches
1513 */
1514
1515 /*
1516 * Search for a character in a line. If "t_cmd" is FALSE, move to the
1517 * position of the character, otherwise move to just before the char.
1518 * Do this "cap->count1" times.
1519 * Return FAIL or OK.
1520 */
1521 int
1522 searchc(cap, t_cmd)
1523 cmdarg_T *cap;
1524 int t_cmd;
1525 {
1526 int c = cap->nchar; /* char to search for */
1527 int dir = cap->arg; /* TRUE for searching forward */
1528 long count = cap->count1; /* repeat count */
1529 static int lastc = NUL; /* last character searched for */
1530 static int lastcdir; /* last direction of character search */
1531 static int last_t_cmd; /* last search t_cmd */
1532 int col;
1533 char_u *p;
1534 int len;
1535 #ifdef FEAT_MBYTE
1536 static char_u bytes[MB_MAXBYTES];
1537 static int bytelen = 1; /* >1 for multi-byte char */
1538 #endif
1539
1540 if (c != NUL) /* normal search: remember args for repeat */
1541 {
1542 if (!KeyStuffed) /* don't remember when redoing */
1543 {
1544 lastc = c;
1545 lastcdir = dir;
1546 last_t_cmd = t_cmd;
1547 #ifdef FEAT_MBYTE
1548 bytelen = (*mb_char2bytes)(c, bytes);
1549 if (cap->ncharC1 != 0)
1550 {
1551 bytelen += (*mb_char2bytes)(cap->ncharC1, bytes + bytelen);
1552 if (cap->ncharC2 != 0)
1553 bytelen += (*mb_char2bytes)(cap->ncharC2, bytes + bytelen);
1554 }
1555 #endif
1556 }
1557 }
1558 else /* repeat previous search */
1559 {
1560 if (lastc == NUL)
1561 return FAIL;
1562 if (dir) /* repeat in opposite direction */
1563 dir = -lastcdir;
1564 else
1565 dir = lastcdir;
1566 t_cmd = last_t_cmd;
1567 c = lastc;
1568 /* For multi-byte re-use last bytes[] and bytelen. */
1569 }
1570
1571 if (dir == BACKWARD)
1572 cap->oap->inclusive = FALSE;
1573 else
1574 cap->oap->inclusive = TRUE;
1575
1576 p = ml_get_curline();
1577 col = curwin->w_cursor.col;
1578 len = (int)STRLEN(p);
1579
1580 while (count--)
1581 {
1582 #ifdef FEAT_MBYTE
1583 if (has_mbyte)
1584 {
1585 for (;;)
1586 {
1587 if (dir > 0)
1588 {
1589 col += (*mb_ptr2len)(p + col);
1590 if (col >= len)
1591 return FAIL;
1592 }
1593 else
1594 {
1595 if (col == 0)
1596 return FAIL;
1597 col -= (*mb_head_off)(p, p + col - 1) + 1;
1598 }
1599 if (bytelen == 1)
1600 {
1601 if (p[col] == c)
1602 break;
1603 }
1604 else
1605 {
1606 if (vim_memcmp(p + col, bytes, bytelen) == 0)
1607 break;
1608 }
1609 }
1610 }
1611 else
1612 #endif
1613 {
1614 for (;;)
1615 {
1616 if ((col += dir) < 0 || col >= len)
1617 return FAIL;
1618 if (p[col] == c)
1619 break;
1620 }
1621 }
1622 }
1623
1624 if (t_cmd)
1625 {
1626 /* backup to before the character (possibly double-byte) */
1627 col -= dir;
1628 #ifdef FEAT_MBYTE
1629 if (has_mbyte)
1630 {
1631 if (dir < 0)
1632 /* Landed on the search char which is bytelen long */
1633 col += bytelen - 1;
1634 else
1635 /* To previous char, which may be multi-byte. */
1636 col -= (*mb_head_off)(p, p + col);
1637 }
1638 #endif
1639 }
1640 curwin->w_cursor.col = col;
1641
1642 return OK;
1643 }
1644
1645 /*
1646 * "Other" Searches
1647 */
1648
1649 /*
1650 * findmatch - find the matching paren or brace
1651 *
1652 * Improvement over vi: Braces inside quotes are ignored.
1653 */
1654 pos_T *
1655 findmatch(oap, initc)
1656 oparg_T *oap;
1657 int initc;
1658 {
1659 return findmatchlimit(oap, initc, 0, 0);
1660 }
1661
1662 /*
1663 * Return TRUE if the character before "linep[col]" equals "ch".
1664 * Return FALSE if "col" is zero.
1665 * Update "*prevcol" to the column of the previous character, unless "prevcol"
1666 * is NULL.
1667 * Handles multibyte string correctly.
1668 */
1669 static int
1670 check_prevcol(linep, col, ch, prevcol)
1671 char_u *linep;
1672 int col;
1673 int ch;
1674 int *prevcol;
1675 {
1676 --col;
1677 #ifdef FEAT_MBYTE
1678 if (col > 0 && has_mbyte)
1679 col -= (*mb_head_off)(linep, linep + col);
1680 #endif
1681 if (prevcol)
1682 *prevcol = col;
1683 return (col >= 0 && linep[col] == ch) ? TRUE : FALSE;
1684 }
1685
1686 /*
1687 * findmatchlimit -- find the matching paren or brace, if it exists within
1688 * maxtravel lines of here. A maxtravel of 0 means search until falling off
1689 * the edge of the file.
1690 *
1691 * "initc" is the character to find a match for. NUL means to find the
1692 * character at or after the cursor.
1693 *
1694 * flags: FM_BACKWARD search backwards (when initc is '/', '*' or '#')
1695 * FM_FORWARD search forwards (when initc is '/', '*' or '#')
1696 * FM_BLOCKSTOP stop at start/end of block ({ or } in column 0)
1697 * FM_SKIPCOMM skip comments (not implemented yet!)
1698 *
1699 * "oap" is only used to set oap->motion_type for a linewise motion, it be
1700 * NULL
1701 */
1702
1703 pos_T *
1704 findmatchlimit(oap, initc, flags, maxtravel)
1705 oparg_T *oap;
1706 int initc;
1707 int flags;
1708 int maxtravel;
1709 {
1710 static pos_T pos; /* current search position */
1711 int findc = 0; /* matching brace */
1712 int c;
1713 int count = 0; /* cumulative number of braces */
1714 int backwards = FALSE; /* init for gcc */
1715 int inquote = FALSE; /* TRUE when inside quotes */
1716 char_u *linep; /* pointer to current line */
1717 char_u *ptr;
1718 int do_quotes; /* check for quotes in current line */
1719 int at_start; /* do_quotes value at start position */
1720 int hash_dir = 0; /* Direction searched for # things */
1721 int comment_dir = 0; /* Direction searched for comments */
1722 pos_T match_pos; /* Where last slash-star was found */
1723 int start_in_quotes; /* start position is in quotes */
1724 int traveled = 0; /* how far we've searched so far */
1725 int ignore_cend = FALSE; /* ignore comment end */
1726 int cpo_match; /* vi compatible matching */
1727 int cpo_bsl; /* don't recognize backslashes */
1728 int match_escaped = 0; /* search for escaped match */
1729 int dir; /* Direction to search */
1730 int comment_col = MAXCOL; /* start of / / comment */
1731 #ifdef FEAT_LISP
1732 int lispcomm = FALSE; /* inside of Lisp-style comment */
1733 int lisp = curbuf->b_p_lisp; /* engage Lisp-specific hacks ;) */
1734 #endif
1735
1736 pos = curwin->w_cursor;
1737 linep = ml_get(pos.lnum);
1738
1739 cpo_match = (vim_strchr(p_cpo, CPO_MATCH) != NULL);
1740 cpo_bsl = (vim_strchr(p_cpo, CPO_MATCHBSL) != NULL);
1741
1742 /* Direction to search when initc is '/', '*' or '#' */
1743 if (flags & FM_BACKWARD)
1744 dir = BACKWARD;
1745 else if (flags & FM_FORWARD)
1746 dir = FORWARD;
1747 else
1748 dir = 0;
1749
1750 /*
1751 * if initc given, look in the table for the matching character
1752 * '/' and '*' are special cases: look for start or end of comment.
1753 * When '/' is used, we ignore running backwards into an star-slash, for
1754 * "[*" command, we just want to find any comment.
1755 */
1756 if (initc == '/' || initc == '*')
1757 {
1758 comment_dir = dir;
1759 if (initc == '/')
1760 ignore_cend = TRUE;
1761 backwards = (dir == FORWARD) ? FALSE : TRUE;
1762 initc = NUL;
1763 }
1764 else if (initc != '#' && initc != NUL)
1765 {
1766 /* 'matchpairs' is "x:y,x:y" */
1767 for (ptr = curbuf->b_p_mps; *ptr; ptr += 2)
1768 {
1769 if (*ptr == initc)
1770 {
1771 findc = initc;
1772 initc = ptr[2];
1773 backwards = TRUE;
1774 break;
1775 }
1776 ptr += 2;
1777 if (*ptr == initc)
1778 {
1779 findc = initc;
1780 initc = ptr[-2];
1781 backwards = FALSE;
1782 break;
1783 }
1784 if (ptr[1] != ',')
1785 break;
1786 }
1787 if (!findc) /* invalid initc! */
1788 return NULL;
1789 }
1790 /*
1791 * Either initc is '#', or no initc was given and we need to look under the
1792 * cursor.
1793 */
1794 else
1795 {
1796 if (initc == '#')
1797 {
1798 hash_dir = dir;
1799 }
1800 else
1801 {
1802 /*
1803 * initc was not given, must look for something to match under
1804 * or near the cursor.
1805 * Only check for special things when 'cpo' doesn't have '%'.
1806 */
1807 if (!cpo_match)
1808 {
1809 /* Are we before or at #if, #else etc.? */
1810 ptr = skipwhite(linep);
1811 if (*ptr == '#' && pos.col <= (colnr_T)(ptr - linep))
1812 {
1813 ptr = skipwhite(ptr + 1);
1814 if ( STRNCMP(ptr, "if", 2) == 0
1815 || STRNCMP(ptr, "endif", 5) == 0
1816 || STRNCMP(ptr, "el", 2) == 0)
1817 hash_dir = 1;
1818 }
1819
1820 /* Are we on a comment? */
1821 else if (linep[pos.col] == '/')
1822 {
1823 if (linep[pos.col + 1] == '*')
1824 {
1825 comment_dir = FORWARD;
1826 backwards = FALSE;
1827 pos.col++;
1828 }
1829 else if (pos.col > 0 && linep[pos.col - 1] == '*')
1830 {
1831 comment_dir = BACKWARD;
1832 backwards = TRUE;
1833 pos.col--;
1834 }
1835 }
1836 else if (linep[pos.col] == '*')
1837 {
1838 if (linep[pos.col + 1] == '/')
1839 {
1840 comment_dir = BACKWARD;
1841 backwards = TRUE;
1842 }
1843 else if (pos.col > 0 && linep[pos.col - 1] == '/')
1844 {
1845 comment_dir = FORWARD;
1846 backwards = FALSE;
1847 }
1848 }
1849 }
1850
1851 /*
1852 * If we are not on a comment or the # at the start of a line, then
1853 * look for brace anywhere on this line after the cursor.
1854 */
1855 if (!hash_dir && !comment_dir)
1856 {
1857 /*
1858 * Find the brace under or after the cursor.
1859 * If beyond the end of the line, use the last character in
1860 * the line.
1861 */
1862 if (linep[pos.col] == NUL && pos.col)
1863 --pos.col;
1864 for (;;)
1865 {
1866 initc = linep[pos.col];
1867 if (initc == NUL)
1868 break;
1869
1870 for (ptr = curbuf->b_p_mps; *ptr; ++ptr)
1871 {
1872 if (*ptr == initc)
1873 {
1874 findc = ptr[2];
1875 backwards = FALSE;
1876 break;
1877 }
1878 ptr += 2;
1879 if (*ptr == initc)
1880 {
1881 findc = ptr[-2];
1882 backwards = TRUE;
1883 break;
1884 }
1885 if (!*++ptr)
1886 break;
1887 }
1888 if (findc)
1889 break;
1890 #ifdef FEAT_MBYTE
1891 if (has_mbyte)
1892 pos.col += (*mb_ptr2len)(linep + pos.col);
1893 else
1894 #endif
1895 ++pos.col;
1896 }
1897 if (!findc)
1898 {
1899 /* no brace in the line, maybe use " #if" then */
1900 if (!cpo_match && *skipwhite(linep) == '#')
1901 hash_dir = 1;
1902 else
1903 return NULL;
1904 }
1905 else if (!cpo_bsl)
1906 {
1907 int col, bslcnt = 0;
1908
1909 /* Set "match_escaped" if there are an odd number of
1910 * backslashes. */
1911 for (col = pos.col; check_prevcol(linep, col, '\\', &col);)
1912 bslcnt++;
1913 match_escaped = (bslcnt & 1);
1914 }
1915 }
1916 }
1917 if (hash_dir)
1918 {
1919 /*
1920 * Look for matching #if, #else, #elif, or #endif
1921 */
1922 if (oap != NULL)
1923 oap->motion_type = MLINE; /* Linewise for this case only */
1924 if (initc != '#')
1925 {
1926 ptr = skipwhite(skipwhite(linep) + 1);
1927 if (STRNCMP(ptr, "if", 2) == 0 || STRNCMP(ptr, "el", 2) == 0)
1928 hash_dir = 1;
1929 else if (STRNCMP(ptr, "endif", 5) == 0)
1930 hash_dir = -1;
1931 else
1932 return NULL;
1933 }
1934 pos.col = 0;
1935 while (!got_int)
1936 {
1937 if (hash_dir > 0)
1938 {
1939 if (pos.lnum == curbuf->b_ml.ml_line_count)
1940 break;
1941 }
1942 else if (pos.lnum == 1)
1943 break;
1944 pos.lnum += hash_dir;
1945 linep = ml_get(pos.lnum);
1946 line_breakcheck(); /* check for CTRL-C typed */
1947 ptr = skipwhite(linep);
1948 if (*ptr != '#')
1949 continue;
1950 pos.col = (colnr_T) (ptr - linep);
1951 ptr = skipwhite(ptr + 1);
1952 if (hash_dir > 0)
1953 {
1954 if (STRNCMP(ptr, "if", 2) == 0)
1955 count++;
1956 else if (STRNCMP(ptr, "el", 2) == 0)
1957 {
1958 if (count == 0)
1959 return &pos;
1960 }
1961 else if (STRNCMP(ptr, "endif", 5) == 0)
1962 {
1963 if (count == 0)
1964 return &pos;
1965 count--;
1966 }
1967 }
1968 else
1969 {
1970 if (STRNCMP(ptr, "if", 2) == 0)
1971 {
1972 if (count == 0)
1973 return &pos;
1974 count--;
1975 }
1976 else if (initc == '#' && STRNCMP(ptr, "el", 2) == 0)
1977 {
1978 if (count == 0)
1979 return &pos;
1980 }
1981 else if (STRNCMP(ptr, "endif", 5) == 0)
1982 count++;
1983 }
1984 }
1985 return NULL;
1986 }
1987 }
1988
1989 #ifdef FEAT_RIGHTLEFT
1990 /* This is just guessing: when 'rightleft' is set, search for a matching
1991 * paren/brace in the other direction. */
1992 if (curwin->w_p_rl && vim_strchr((char_u *)"()[]{}<>", initc) != NULL)
1993 backwards = !backwards;
1994 #endif
1995
1996 do_quotes = -1;
1997 start_in_quotes = MAYBE;
1998 clearpos(&match_pos);
1999
2000 /* backward search: Check if this line contains a single-line comment */
2001 if ((backwards && comment_dir)
2002 #ifdef FEAT_LISP
2003 || lisp
2004 #endif
2005 )
2006 comment_col = check_linecomment(linep);
2007 #ifdef FEAT_LISP
2008 if (lisp && comment_col != MAXCOL && pos.col > (colnr_T)comment_col)
2009 lispcomm = TRUE; /* find match inside this comment */
2010 #endif
2011 while (!got_int)
2012 {
2013 /*
2014 * Go to the next position, forward or backward. We could use
2015 * inc() and dec() here, but that is much slower
2016 */
2017 if (backwards)
2018 {
2019 #ifdef FEAT_LISP
2020 /* char to match is inside of comment, don't search outside */
2021 if (lispcomm && pos.col < (colnr_T)comment_col)
2022 break;
2023 #endif
2024 if (pos.col == 0) /* at start of line, go to prev. one */
2025 {
2026 if (pos.lnum == 1) /* start of file */
2027 break;
2028 --pos.lnum;
2029
2030 if (maxtravel > 0 && ++traveled > maxtravel)
2031 break;
2032
2033 linep = ml_get(pos.lnum);
2034 pos.col = (colnr_T)STRLEN(linep); /* pos.col on trailing NUL */
2035 do_quotes = -1;
2036 line_breakcheck();
2037
2038 /* Check if this line contains a single-line comment */
2039 if (comment_dir
2040 #ifdef FEAT_LISP
2041 || lisp
2042 #endif
2043 )
2044 comment_col = check_linecomment(linep);
2045 #ifdef FEAT_LISP
2046 /* skip comment */
2047 if (lisp && comment_col != MAXCOL)
2048 pos.col = comment_col;
2049 #endif
2050 }
2051 else
2052 {
2053 --pos.col;
2054 #ifdef FEAT_MBYTE
2055 if (has_mbyte)
2056 pos.col -= (*mb_head_off)(linep, linep + pos.col);
2057 #endif
2058 }
2059 }
2060 else /* forward search */
2061 {
2062 if (linep[pos.col] == NUL
2063 /* at end of line, go to next one */
2064 #ifdef FEAT_LISP
2065 /* don't search for match in comment */
2066 || (lisp && comment_col != MAXCOL
2067 && pos.col == (colnr_T)comment_col)
2068 #endif
2069 )
2070 {
2071 if (pos.lnum == curbuf->b_ml.ml_line_count /* end of file */
2072 #ifdef FEAT_LISP
2073 /* line is exhausted and comment with it,
2074 * don't search for match in code */
2075 || lispcomm
2076 #endif
2077 )
2078 break;
2079 ++pos.lnum;
2080
2081 if (maxtravel && traveled++ > maxtravel)
2082 break;
2083
2084 linep = ml_get(pos.lnum);
2085 pos.col = 0;
2086 do_quotes = -1;
2087 line_breakcheck();
2088 #ifdef FEAT_LISP
2089 if (lisp) /* find comment pos in new line */
2090 comment_col = check_linecomment(linep);
2091 #endif
2092 }
2093 else
2094 {
2095 #ifdef FEAT_MBYTE
2096 if (has_mbyte)
2097 pos.col += (*mb_ptr2len)(linep + pos.col);
2098 else
2099 #endif
2100 ++pos.col;
2101 }
2102 }
2103
2104 /*
2105 * If FM_BLOCKSTOP given, stop at a '{' or '}' in column 0.
2106 */
2107 if (pos.col == 0 && (flags & FM_BLOCKSTOP) &&
2108 (linep[0] == '{' || linep[0] == '}'))
2109 {
2110 if (linep[0] == findc && count == 0) /* match! */
2111 return &pos;
2112 break; /* out of scope */
2113 }
2114
2115 if (comment_dir)
2116 {
2117 /* Note: comments do not nest, and we ignore quotes in them */
2118 /* TODO: ignore comment brackets inside strings */
2119 if (comment_dir == FORWARD)
2120 {
2121 if (linep[pos.col] == '*' && linep[pos.col + 1] == '/')
2122 {
2123 pos.col++;
2124 return &pos;
2125 }
2126 }
2127 else /* Searching backwards */
2128 {
2129 /*
2130 * A comment may contain / * or / /, it may also start or end
2131 * with / * /. Ignore a / * after / /.
2132 */
2133 if (pos.col == 0)
2134 continue;
2135 else if ( linep[pos.col - 1] == '/'
2136 && linep[pos.col] == '*'
2137 && (int)pos.col < comment_col)
2138 {
2139 count++;
2140 match_pos = pos;
2141 match_pos.col--;
2142 }
2143 else if (linep[pos.col - 1] == '*' && linep[pos.col] == '/')
2144 {
2145 if (count > 0)
2146 pos = match_pos;
2147 else if (pos.col > 1 && linep[pos.col - 2] == '/'
2148 && (int)pos.col <= comment_col)
2149 pos.col -= 2;
2150 else if (ignore_cend)
2151 continue;
2152 else
2153 return NULL;
2154 return &pos;
2155 }
2156 }
2157 continue;
2158 }
2159
2160 /*
2161 * If smart matching ('cpoptions' does not contain '%'), braces inside
2162 * of quotes are ignored, but only if there is an even number of
2163 * quotes in the line.
2164 */
2165 if (cpo_match)
2166 do_quotes = 0;
2167 else if (do_quotes == -1)
2168 {
2169 /*
2170 * Count the number of quotes in the line, skipping \" and '"'.
2171 * Watch out for "\\".
2172 */
2173 at_start = do_quotes;
2174 for (ptr = linep; *ptr; ++ptr)
2175 {
2176 if (ptr == linep + pos.col + backwards)
2177 at_start = (do_quotes & 1);
2178 if (*ptr == '"'
2179 && (ptr == linep || ptr[-1] != '\'' || ptr[1] != '\''))
2180 ++do_quotes;
2181 if (*ptr == '\\' && ptr[1] != NUL)
2182 ++ptr;
2183 }
2184 do_quotes &= 1; /* result is 1 with even number of quotes */
2185
2186 /*
2187 * If we find an uneven count, check current line and previous
2188 * one for a '\' at the end.
2189 */
2190 if (!do_quotes)
2191 {
2192 inquote = FALSE;
2193 if (ptr[-1] == '\\')
2194 {
2195 do_quotes = 1;
2196 if (start_in_quotes == MAYBE)
2197 {
2198 /* Do we need to use at_start here? */
2199 inquote = TRUE;
2200 start_in_quotes = TRUE;
2201 }
2202 else if (backwards)
2203 inquote = TRUE;
2204 }
2205 if (pos.lnum > 1)
2206 {
2207 ptr = ml_get(pos.lnum - 1);
2208 if (*ptr && *(ptr + STRLEN(ptr) - 1) == '\\')
2209 {
2210 do_quotes = 1;
2211 if (start_in_quotes == MAYBE)
2212 {
2213 inquote = at_start;
2214 if (inquote)
2215 start_in_quotes = TRUE;
2216 }
2217 else if (!backwards)
2218 inquote = TRUE;
2219 }
2220
2221 /* ml_get() only keeps one line, need to get linep again */
2222 linep = ml_get(pos.lnum);
2223 }
2224 }
2225 }
2226 if (start_in_quotes == MAYBE)
2227 start_in_quotes = FALSE;
2228
2229 /*
2230 * If 'smartmatch' is set:
2231 * Things inside quotes are ignored by setting 'inquote'. If we
2232 * find a quote without a preceding '\' invert 'inquote'. At the
2233 * end of a line not ending in '\' we reset 'inquote'.
2234 *
2235 * In lines with an uneven number of quotes (without preceding '\')
2236 * we do not know which part to ignore. Therefore we only set
2237 * inquote if the number of quotes in a line is even, unless this
2238 * line or the previous one ends in a '\'. Complicated, isn't it?
2239 */
2240 switch (c = linep[pos.col])
2241 {
2242 case NUL:
2243 /* at end of line without trailing backslash, reset inquote */
2244 if (pos.col == 0 || linep[pos.col - 1] != '\\')
2245 {
2246 inquote = FALSE;
2247 start_in_quotes = FALSE;
2248 }
2249 break;
2250
2251 case '"':
2252 /* a quote that is preceded with an odd number of backslashes is
2253 * ignored */
2254 if (do_quotes)
2255 {
2256 int col;
2257
2258 for (col = pos.col - 1; col >= 0; --col)
2259 if (linep[col] != '\\')
2260 break;
2261 if ((((int)pos.col - 1 - col) & 1) == 0)
2262 {
2263 inquote = !inquote;
2264 start_in_quotes = FALSE;
2265 }
2266 }
2267 break;
2268
2269 /*
2270 * If smart matching ('cpoptions' does not contain '%'):
2271 * Skip things in single quotes: 'x' or '\x'. Be careful for single
2272 * single quotes, eg jon's. Things like '\233' or '\x3f' are not
2273 * skipped, there is never a brace in them.
2274 * Ignore this when finding matches for `'.
2275 */
2276 case '\'':
2277 if (!cpo_match && initc != '\'' && findc != '\'')
2278 {
2279 if (backwards)
2280 {
2281 if (pos.col > 1)
2282 {
2283 if (linep[pos.col - 2] == '\'')
2284 {
2285 pos.col -= 2;
2286 break;
2287 }
2288 else if (linep[pos.col - 2] == '\\' &&
2289 pos.col > 2 && linep[pos.col - 3] == '\'')
2290 {
2291 pos.col -= 3;
2292 break;
2293 }
2294 }
2295 }
2296 else if (linep[pos.col + 1]) /* forward search */
2297 {
2298 if (linep[pos.col + 1] == '\\' &&
2299 linep[pos.col + 2] && linep[pos.col + 3] == '\'')
2300 {
2301 pos.col += 3;
2302 break;
2303 }
2304 else if (linep[pos.col + 2] == '\'')
2305 {
2306 pos.col += 2;
2307 break;
2308 }
2309 }
2310 }
2311 /* FALLTHROUGH */
2312
2313 default:
2314 #ifdef FEAT_LISP
2315 /*
2316 * For Lisp skip over backslashed (), {} and [].
2317 * (actually, we skip #\( et al)
2318 */
2319 if (curbuf->b_p_lisp
2320 && vim_strchr((char_u *)"(){}[]", c) != NULL
2321 && pos.col > 1
2322 && check_prevcol(linep, pos.col, '\\', NULL)
2323 && check_prevcol(linep, pos.col - 1, '#', NULL))
2324 break;
2325 #endif
2326
2327 /* Check for match outside of quotes, and inside of
2328 * quotes when the start is also inside of quotes. */
2329 if ((!inquote || start_in_quotes == TRUE)
2330 && (c == initc || c == findc))
2331 {
2332 int col, bslcnt = 0;
2333
2334 if (!cpo_bsl)
2335 {
2336 for (col = pos.col; check_prevcol(linep, col, '\\', &col);)
2337 bslcnt++;
2338 }
2339 /* Only accept a match when 'M' is in 'cpo' or when escaping
2340 * is what we expect. */
2341 if (cpo_bsl || (bslcnt & 1) == match_escaped)
2342 {
2343 if (c == initc)
2344 count++;
2345 else
2346 {
2347 if (count == 0)
2348 return &pos;
2349 count--;
2350 }
2351 }
2352 }
2353 }
2354 }
2355
2356 if (comment_dir == BACKWARD && count > 0)
2357 {
2358 pos = match_pos;
2359 return &pos;
2360 }
2361 return (pos_T *)NULL; /* never found it */
2362 }
2363
2364 /*
2365 * Check if line[] contains a / / comment.
2366 * Return MAXCOL if not, otherwise return the column.
2367 * TODO: skip strings.
2368 */
2369 static int
2370 check_linecomment(line)
2371 char_u *line;
2372 {
2373 char_u *p;
2374
2375 p = line;
2376 #ifdef FEAT_LISP
2377 /* skip Lispish one-line comments */
2378 if (curbuf->b_p_lisp)
2379 {
2380 if (vim_strchr(p, ';') != NULL) /* there may be comments */
2381 {
2382 int instr = FALSE; /* inside of string */
2383
2384 p = line; /* scan from start */
2385 while ((p = vim_strpbrk(p, (char_u *)"\";")) != NULL)
2386 {
2387 if (*p == '"')
2388 {
2389 if (instr)
2390 {
2391 if (*(p - 1) != '\\') /* skip escaped quote */
2392 instr = FALSE;
2393 }
2394 else if (p == line || ((p - line) >= 2
2395 /* skip #\" form */
2396 && *(p - 1) != '\\' && *(p - 2) != '#'))
2397 instr = TRUE;
2398 }
2399 else if (!instr && ((p - line) < 2
2400 || (*(p - 1) != '\\' && *(p - 2) != '#')))
2401 break; /* found! */
2402 ++p;
2403 }
2404 }
2405 else
2406 p = NULL;
2407 }
2408 else
2409 #endif
2410 while ((p = vim_strchr(p, '/')) != NULL)
2411 {
2412 /* accept a double /, unless it's preceded with * and followed by *,
2413 * because * / / * is an end and start of a C comment */
2414 if (p[1] == '/' && (p == line || p[-1] != '*' || p[2] != '*'))
2415 break;
2416 ++p;
2417 }
2418
2419 if (p == NULL)
2420 return MAXCOL;
2421 return (int)(p - line);
2422 }
2423
2424 /*
2425 * Move cursor briefly to character matching the one under the cursor.
2426 * Used for Insert mode and "r" command.
2427 * Show the match only if it is visible on the screen.
2428 * If there isn't a match, then beep.
2429 */
2430 void
2431 showmatch(c)
2432 int c; /* char to show match for */
2433 {
2434 pos_T *lpos, save_cursor;
2435 pos_T mpos;
2436 colnr_T vcol;
2437 long save_so;
2438 long save_siso;
2439 #ifdef CURSOR_SHAPE
2440 int save_state;
2441 #endif
2442 colnr_T save_dollar_vcol;
2443 char_u *p;
2444
2445 /*
2446 * Only show match for chars in the 'matchpairs' option.
2447 */
2448 /* 'matchpairs' is "x:y,x:y" */
2449 for (p = curbuf->b_p_mps; *p != NUL; p += 2)
2450 {
2451 #ifdef FEAT_RIGHTLEFT
2452 if (*p == c && (curwin->w_p_rl ^ p_ri))
2453 break;
2454 #endif
2455 p += 2;
2456 if (*p == c
2457 #ifdef FEAT_RIGHTLEFT
2458 && !(curwin->w_p_rl ^ p_ri)
2459 #endif
2460 )
2461 break;
2462 if (p[1] != ',')
2463 return;
2464 }
2465
2466 if ((lpos = findmatch(NULL, NUL)) == NULL) /* no match, so beep */
2467 vim_beep();
2468 else if (lpos->lnum >= curwin->w_topline)
2469 {
2470 if (!curwin->w_p_wrap)
2471 getvcol(curwin, lpos, NULL, &vcol, NULL);
2472 if (curwin->w_p_wrap || (vcol >= curwin->w_leftcol
2473 && vcol < curwin->w_leftcol + W_WIDTH(curwin)))
2474 {
2475 mpos = *lpos; /* save the pos, update_screen() may change it */
2476 save_cursor = curwin->w_cursor;
2477 save_so = p_so;
2478 save_siso = p_siso;
2479 /* Handle "$" in 'cpo': If the ')' is typed on top of the "$",
2480 * stop displaying the "$". */
2481 if (dollar_vcol > 0 && dollar_vcol == curwin->w_virtcol)
2482 dollar_vcol = 0;
2483 ++curwin->w_virtcol; /* do display ')' just before "$" */
2484 update_screen(VALID); /* show the new char first */
2485
2486 save_dollar_vcol = dollar_vcol;
2487 #ifdef CURSOR_SHAPE
2488 save_state = State;
2489 State = SHOWMATCH;
2490 ui_cursor_shape(); /* may show different cursor shape */
2491 #endif
2492 curwin->w_cursor = mpos; /* move to matching char */
2493 p_so = 0; /* don't use 'scrolloff' here */
2494 p_siso = 0; /* don't use 'sidescrolloff' here */
2495 showruler(FALSE);
2496 setcursor();
2497 cursor_on(); /* make sure that the cursor is shown */
2498 out_flush();
2499 #ifdef FEAT_GUI
2500 if (gui.in_use)
2501 {
2502 gui_update_cursor(TRUE, FALSE);
2503 gui_mch_flush();
2504 }
2505 #endif
2506 /* Restore dollar_vcol(), because setcursor() may call curs_rows()
2507 * which resets it if the matching position is in a previous line
2508 * and has a higher column number. */
2509 dollar_vcol = save_dollar_vcol;
2510
2511 /*
2512 * brief pause, unless 'm' is present in 'cpo' and a character is
2513 * available.
2514 */
2515 if (vim_strchr(p_cpo, CPO_SHOWMATCH) != NULL)
2516 ui_delay(p_mat * 100L, TRUE);
2517 else if (!char_avail())
2518 ui_delay(p_mat * 100L, FALSE);
2519 curwin->w_cursor = save_cursor; /* restore cursor position */
2520 p_so = save_so;
2521 p_siso = save_siso;
2522 #ifdef CURSOR_SHAPE
2523 State = save_state;
2524 ui_cursor_shape(); /* may show different cursor shape */
2525 #endif
2526 }
2527 }
2528 }
2529
2530 /*
2531 * findsent(dir, count) - Find the start of the next sentence in direction
2532 * "dir" Sentences are supposed to end in ".", "!" or "?" followed by white
2533 * space or a line break. Also stop at an empty line.
2534 * Return OK if the next sentence was found.
2535 */
2536 int
2537 findsent(dir, count)
2538 int dir;
2539 long count;
2540 {
2541 pos_T pos, tpos;
2542 int c;
2543 int (*func) __ARGS((pos_T *));
2544 int startlnum;
2545 int noskip = FALSE; /* do not skip blanks */
2546 int cpo_J;
2547 int found_dot;
2548
2549 pos = curwin->w_cursor;
2550 if (dir == FORWARD)
2551 func = incl;
2552 else
2553 func = decl;
2554
2555 while (count--)
2556 {
2557 /*
2558 * if on an empty line, skip upto a non-empty line
2559 */
2560 if (gchar_pos(&pos) == NUL)
2561 {
2562 do
2563 if ((*func)(&pos) == -1)
2564 break;
2565 while (gchar_pos(&pos) == NUL);
2566 if (dir == FORWARD)
2567 goto found;
2568 }
2569 /*
2570 * if on the start of a paragraph or a section and searching forward,
2571 * go to the next line
2572 */
2573 else if (dir == FORWARD && pos.col == 0 &&
2574 startPS(pos.lnum, NUL, FALSE))
2575 {
2576 if (pos.lnum == curbuf->b_ml.ml_line_count)
2577 return FAIL;
2578 ++pos.lnum;
2579 goto found;
2580 }
2581 else if (dir == BACKWARD)
2582 decl(&pos);
2583
2584 /* go back to the previous non-blank char */
2585 found_dot = FALSE;
2586 while ((c = gchar_pos(&pos)) == ' ' || c == '\t' ||
2587 (dir == BACKWARD && vim_strchr((char_u *)".!?)]\"'", c) != NULL))
2588 {
2589 if (vim_strchr((char_u *)".!?", c) != NULL)
2590 {
2591 /* Only skip over a '.', '!' and '?' once. */
2592 if (found_dot)
2593 break;
2594 found_dot = TRUE;
2595 }
2596 if (decl(&pos) == -1)
2597 break;
2598 /* when going forward: Stop in front of empty line */
2599 if (lineempty(pos.lnum) && dir == FORWARD)
2600 {
2601 incl(&pos);
2602 goto found;
2603 }
2604 }
2605
2606 /* remember the line where the search started */
2607 startlnum = pos.lnum;
2608 cpo_J = vim_strchr(p_cpo, CPO_ENDOFSENT) != NULL;
2609
2610 for (;;) /* find end of sentence */
2611 {
2612 c = gchar_pos(&pos);
2613 if (c == NUL || (pos.col == 0 && startPS(pos.lnum, NUL, FALSE)))
2614 {
2615 if (dir == BACKWARD && pos.lnum != startlnum)
2616 ++pos.lnum;
2617 break;
2618 }
2619 if (c == '.' || c == '!' || c == '?')
2620 {
2621 tpos = pos;
2622 do
2623 if ((c = inc(&tpos)) == -1)
2624 break;
2625 while (vim_strchr((char_u *)")]\"'", c = gchar_pos(&tpos))
2626 != NULL);
2627 if (c == -1 || (!cpo_J && (c == ' ' || c == '\t')) || c == NUL
2628 || (cpo_J && (c == ' ' && inc(&tpos) >= 0
2629 && gchar_pos(&tpos) == ' ')))
2630 {
2631 pos = tpos;
2632 if (gchar_pos(&pos) == NUL) /* skip NUL at EOL */
2633 inc(&pos);
2634 break;
2635 }
2636 }
2637 if ((*func)(&pos) == -1)
2638 {
2639 if (count)
2640 return FAIL;
2641 noskip = TRUE;
2642 break;
2643 }
2644 }
2645 found:
2646 /* skip white space */
2647 while (!noskip && ((c = gchar_pos(&pos)) == ' ' || c == '\t'))
2648 if (incl(&pos) == -1)
2649 break;
2650 }
2651
2652 setpcmark();
2653 curwin->w_cursor = pos;
2654 return OK;
2655 }
2656
2657 /*
2658 * Find the next paragraph or section in direction 'dir'.
2659 * Paragraphs are currently supposed to be separated by empty lines.
2660 * If 'what' is NUL we go to the next paragraph.
2661 * If 'what' is '{' or '}' we go to the next section.
2662 * If 'both' is TRUE also stop at '}'.
2663 * Return TRUE if the next paragraph or section was found.
2664 */
2665 int
2666 findpar(pincl, dir, count, what, both)
2667 int *pincl; /* Return: TRUE if last char is to be included */
2668 int dir;
2669 long count;
2670 int what;
2671 int both;
2672 {
2673 linenr_T curr;
2674 int did_skip; /* TRUE after separating lines have been skipped */
2675 int first; /* TRUE on first line */
2676 int posix = (vim_strchr(p_cpo, CPO_PARA) != NULL);
2677 #ifdef FEAT_FOLDING
2678 linenr_T fold_first; /* first line of a closed fold */
2679 linenr_T fold_last; /* last line of a closed fold */
2680 int fold_skipped; /* TRUE if a closed fold was skipped this
2681 iteration */
2682 #endif
2683
2684 curr = curwin->w_cursor.lnum;
2685
2686 while (count--)
2687 {
2688 did_skip = FALSE;
2689 for (first = TRUE; ; first = FALSE)
2690 {
2691 if (*ml_get(curr) != NUL)
2692 did_skip = TRUE;
2693
2694 #ifdef FEAT_FOLDING
2695 /* skip folded lines */
2696 fold_skipped = FALSE;
2697 if (first && hasFolding(curr, &fold_first, &fold_last))
2698 {
2699 curr = ((dir > 0) ? fold_last : fold_first) + dir;
2700 fold_skipped = TRUE;
2701 }
2702 #endif
2703
2704 /* POSIX has it's own ideas of what a paragraph boundary is and it
2705 * doesn't match historical Vi: It also stops at a "{" in the
2706 * first column and at an empty line. */
2707 if (!first && did_skip && (startPS(curr, what, both)
2708 || (posix && what == NUL && *ml_get(curr) == '{')))
2709 break;
2710
2711 #ifdef FEAT_FOLDING
2712 if (fold_skipped)
2713 curr -= dir;
2714 #endif
2715 if ((curr += dir) < 1 || curr > curbuf->b_ml.ml_line_count)
2716 {
2717 if (count)
2718 return FALSE;
2719 curr -= dir;
2720 break;
2721 }
2722 }
2723 }
2724 setpcmark();
2725 if (both && *ml_get(curr) == '}') /* include line with '}' */
2726 ++curr;
2727 curwin->w_cursor.lnum = curr;
2728 if (curr == curbuf->b_ml.ml_line_count && what != '}')
2729 {
2730 if ((curwin->w_cursor.col = (colnr_T)STRLEN(ml_get(curr))) != 0)
2731 {
2732 --curwin->w_cursor.col;
2733 *pincl = TRUE;
2734 }
2735 }
2736 else
2737 curwin->w_cursor.col = 0;
2738 return TRUE;
2739 }
2740
2741 /*
2742 * check if the string 's' is a nroff macro that is in option 'opt'
2743 */
2744 static int
2745 inmacro(opt, s)
2746 char_u *opt;
2747 char_u *s;
2748 {
2749 char_u *macro;
2750
2751 for (macro = opt; macro[0]; ++macro)
2752 {
2753 /* Accept two characters in the option being equal to two characters
2754 * in the line. A space in the option matches with a space in the
2755 * line or the line having ended. */
2756 if ( (macro[0] == s[0]
2757 || (macro[0] == ' '
2758 && (s[0] == NUL || s[0] == ' ')))
2759 && (macro[1] == s[1]
2760 || ((macro[1] == NUL || macro[1] == ' ')
2761 && (s[0] == NUL || s[1] == NUL || s[1] == ' '))))
2762 break;
2763 ++macro;
2764 if (macro[0] == NUL)
2765 break;
2766 }
2767 return (macro[0] != NUL);
2768 }
2769
2770 /*
2771 * startPS: return TRUE if line 'lnum' is the start of a section or paragraph.
2772 * If 'para' is '{' or '}' only check for sections.
2773 * If 'both' is TRUE also stop at '}'
2774 */
2775 int
2776 startPS(lnum, para, both)
2777 linenr_T lnum;
2778 int para;
2779 int both;
2780 {
2781 char_u *s;
2782
2783 s = ml_get(lnum);
2784 if (*s == para || *s == '\f' || (both && *s == '}'))
2785 return TRUE;
2786 if (*s == '.' && (inmacro(p_sections, s + 1) ||
2787 (!para && inmacro(p_para, s + 1))))
2788 return TRUE;
2789 return FALSE;
2790 }
2791
2792 /*
2793 * The following routines do the word searches performed by the 'w', 'W',
2794 * 'b', 'B', 'e', and 'E' commands.
2795 */
2796
2797 /*
2798 * To perform these searches, characters are placed into one of three
2799 * classes, and transitions between classes determine word boundaries.
2800 *
2801 * The classes are:
2802 *
2803 * 0 - white space
2804 * 1 - punctuation
2805 * 2 or higher - keyword characters (letters, digits and underscore)
2806 */
2807
2808 static int cls_bigword; /* TRUE for "W", "B" or "E" */
2809
2810 /*
2811 * cls() - returns the class of character at curwin->w_cursor
2812 *
2813 * If a 'W', 'B', or 'E' motion is being done (cls_bigword == TRUE), chars
2814 * from class 2 and higher are reported as class 1 since only white space
2815 * boundaries are of interest.
2816 */
2817 static int
2818 cls()
2819 {
2820 int c;
2821
2822 c = gchar_cursor();
2823 #ifdef FEAT_FKMAP /* when 'akm' (Farsi mode), take care of Farsi blank */
2824 if (p_altkeymap && c == F_BLANK)
2825 return 0;
2826 #endif
2827 if (c == ' ' || c == '\t' || c == NUL)
2828 return 0;
2829 #ifdef FEAT_MBYTE
2830 if (enc_dbcs != 0 && c > 0xFF)
2831 {
2832 /* If cls_bigword, report multi-byte chars as class 1. */
2833 if (enc_dbcs == DBCS_KOR && cls_bigword)
2834 return 1;
2835
2836 /* process code leading/trailing bytes */
2837 return dbcs_class(((unsigned)c >> 8), (c & 0xFF));
2838 }
2839 if (enc_utf8)
2840 {
2841 c = utf_class(c);
2842 if (c != 0 && cls_bigword)
2843 return 1;
2844 return c;
2845 }
2846 #endif
2847
2848 /* If cls_bigword is TRUE, report all non-blanks as class 1. */
2849 if (cls_bigword)
2850 return 1;
2851
2852 if (vim_iswordc(c))
2853 return 2;
2854 return 1;
2855 }
2856
2857
2858 /*
2859 * fwd_word(count, type, eol) - move forward one word
2860 *
2861 * Returns FAIL if the cursor was already at the end of the file.
2862 * If eol is TRUE, last word stops at end of line (for operators).
2863 */
2864 int
2865 fwd_word(count, bigword, eol)
2866 long count;
2867 int bigword; /* "W", "E" or "B" */
2868 int eol;
2869 {
2870 int sclass; /* starting class */
2871 int i;
2872 int last_line;
2873
2874 #ifdef FEAT_VIRTUALEDIT
2875 curwin->w_cursor.coladd = 0;
2876 #endif
2877 cls_bigword = bigword;
2878 while (--count >= 0)
2879 {
2880 #ifdef FEAT_FOLDING
2881 /* When inside a range of folded lines, move to the last char of the
2882 * last line. */
2883 if (hasFolding(curwin->w_cursor.lnum, NULL, &curwin->w_cursor.lnum))
2884 coladvance((colnr_T)MAXCOL);
2885 #endif
2886 sclass = cls();
2887
2888 /*
2889 * We always move at least one character, unless on the last
2890 * character in the buffer.
2891 */
2892 last_line = (curwin->w_cursor.lnum == curbuf->b_ml.ml_line_count);
2893 i = inc_cursor();
2894 if (i == -1 || (i >= 1 && last_line)) /* started at last char in file */
2895 return FAIL;
2896 if (i >= 1 && eol && count == 0) /* started at last char in line */
2897 return OK;
2898
2899 /*
2900 * Go one char past end of current word (if any)
2901 */
2902 if (sclass != 0)
2903 while (cls() == sclass)
2904 {
2905 i = inc_cursor();
2906 if (i == -1 || (i >= 1 && eol && count == 0))
2907 return OK;
2908 }
2909
2910 /*
2911 * go to next non-white
2912 */
2913 while (cls() == 0)
2914 {
2915 /*
2916 * We'll stop if we land on a blank line
2917 */
2918 if (curwin->w_cursor.col == 0 && *ml_get_curline() == NUL)
2919 break;
2920
2921 i = inc_cursor();
2922 if (i == -1 || (i >= 1 && eol && count == 0))
2923 return OK;
2924 }
2925 }
2926 return OK;
2927 }
2928
2929 /*
2930 * bck_word() - move backward 'count' words
2931 *
2932 * If stop is TRUE and we are already on the start of a word, move one less.
2933 *
2934 * Returns FAIL if top of the file was reached.
2935 */
2936 int
2937 bck_word(count, bigword, stop)
2938 long count;
2939 int bigword;
2940 int stop;
2941 {
2942 int sclass; /* starting class */
2943
2944 #ifdef FEAT_VIRTUALEDIT
2945 curwin->w_cursor.coladd = 0;
2946 #endif
2947 cls_bigword = bigword;
2948 while (--count >= 0)
2949 {
2950 #ifdef FEAT_FOLDING
2951 /* When inside a range of folded lines, move to the first char of the
2952 * first line. */
2953 if (hasFolding(curwin->w_cursor.lnum, &curwin->w_cursor.lnum, NULL))
2954 curwin->w_cursor.col = 0;
2955 #endif
2956 sclass = cls();
2957 if (dec_cursor() == -1) /* started at start of file */
2958 return FAIL;
2959
2960 if (!stop || sclass == cls() || sclass == 0)
2961 {
2962 /*
2963 * Skip white space before the word.
2964 * Stop on an empty line.
2965 */
2966 while (cls() == 0)
2967 {
2968 if (curwin->w_cursor.col == 0
2969 && lineempty(curwin->w_cursor.lnum))
2970 goto finished;
2971 if (dec_cursor() == -1) /* hit start of file, stop here */
2972 return OK;
2973 }
2974
2975 /*
2976 * Move backward to start of this word.
2977 */
2978 if (skip_chars(cls(), BACKWARD))
2979 return OK;
2980 }
2981
2982 inc_cursor(); /* overshot - forward one */
2983 finished:
2984 stop = FALSE;
2985 }
2986 return OK;
2987 }
2988
2989 /*
2990 * end_word() - move to the end of the word
2991 *
2992 * There is an apparent bug in the 'e' motion of the real vi. At least on the
2993 * System V Release 3 version for the 80386. Unlike 'b' and 'w', the 'e'
2994 * motion crosses blank lines. When the real vi crosses a blank line in an
2995 * 'e' motion, the cursor is placed on the FIRST character of the next
2996 * non-blank line. The 'E' command, however, works correctly. Since this
2997 * appears to be a bug, I have not duplicated it here.
2998 *
2999 * Returns FAIL if end of the file was reached.
3000 *
3001 * If stop is TRUE and we are already on the end of a word, move one less.
3002 * If empty is TRUE stop on an empty line.
3003 */
3004 int
3005 end_word(count, bigword, stop, empty)
3006 long count;
3007 int bigword;
3008 int stop;
3009 int empty;
3010 {
3011 int sclass; /* starting class */
3012
3013 #ifdef FEAT_VIRTUALEDIT
3014 curwin->w_cursor.coladd = 0;
3015 #endif
3016 cls_bigword = bigword;
3017 while (--count >= 0)
3018 {
3019 #ifdef FEAT_FOLDING
3020 /* When inside a range of folded lines, move to the last char of the
3021 * last line. */
3022 if (hasFolding(curwin->w_cursor.lnum, NULL, &curwin->w_cursor.lnum))
3023 coladvance((colnr_T)MAXCOL);
3024 #endif
3025 sclass = cls();
3026 if (inc_cursor() == -1)
3027 return FAIL;
3028
3029 /*
3030 * If we're in the middle of a word, we just have to move to the end
3031 * of it.
3032 */
3033 if (cls() == sclass && sclass != 0)
3034 {
3035 /*
3036 * Move forward to end of the current word
3037 */
3038 if (skip_chars(sclass, FORWARD))
3039 return FAIL;
3040 }
3041 else if (!stop || sclass == 0)
3042 {
3043 /*
3044 * We were at the end of a word. Go to the end of the next word.
3045 * First skip white space, if 'empty' is TRUE, stop at empty line.
3046 */
3047 while (cls() == 0)
3048 {
3049 if (empty && curwin->w_cursor.col == 0
3050 && lineempty(curwin->w_cursor.lnum))
3051 goto finished;
3052 if (inc_cursor() == -1) /* hit end of file, stop here */
3053 return FAIL;
3054 }
3055
3056 /*
3057 * Move forward to the end of this word.
3058 */
3059 if (skip_chars(cls(), FORWARD))
3060 return FAIL;
3061 }
3062 dec_cursor(); /* overshot - one char backward */
3063 finished:
3064 stop = FALSE; /* we move only one word less */
3065 }
3066 return OK;
3067 }
3068
3069 /*
3070 * Move back to the end of the word.
3071 *
3072 * Returns FAIL if start of the file was reached.
3073 */
3074 int
3075 bckend_word(count, bigword, eol)
3076 long count;
3077 int bigword; /* TRUE for "B" */
3078 int eol; /* TRUE: stop at end of line. */
3079 {
3080 int sclass; /* starting class */
3081 int i;
3082
3083 #ifdef FEAT_VIRTUALEDIT
3084 curwin->w_cursor.coladd = 0;
3085 #endif
3086 cls_bigword = bigword;
3087 while (--count >= 0)
3088 {
3089 sclass = cls();
3090 if ((i = dec_cursor()) == -1)
3091 return FAIL;
3092 if (eol && i == 1)
3093 return OK;
3094
3095 /*
3096 * Move backward to before the start of this word.
3097 */
3098 if (sclass != 0)
3099 {
3100 while (cls() == sclass)
3101 if ((i = dec_cursor()) == -1 || (eol && i == 1))
3102 return OK;
3103 }
3104
3105 /*
3106 * Move backward to end of the previous word
3107 */
3108 while (cls() == 0)
3109 {
3110 if (curwin->w_cursor.col == 0 && lineempty(curwin->w_cursor.lnum))
3111 break;
3112 if ((i = dec_cursor()) == -1 || (eol && i == 1))
3113 return OK;
3114 }
3115 }
3116 return OK;
3117 }
3118
3119 /*
3120 * Skip a row of characters of the same class.
3121 * Return TRUE when end-of-file reached, FALSE otherwise.
3122 */
3123 static int
3124 skip_chars(cclass, dir)
3125 int cclass;
3126 int dir;
3127 {
3128 while (cls() == cclass)
3129 if ((dir == FORWARD ? inc_cursor() : dec_cursor()) == -1)
3130 return TRUE;
3131 return FALSE;
3132 }
3133
3134 #ifdef FEAT_TEXTOBJ
3135 /*
3136 * Go back to the start of the word or the start of white space
3137 */
3138 static void
3139 back_in_line()
3140 {
3141 int sclass; /* starting class */
3142
3143 sclass = cls();
3144 for (;;)
3145 {
3146 if (curwin->w_cursor.col == 0) /* stop at start of line */
3147 break;
3148 dec_cursor();
3149 if (cls() != sclass) /* stop at start of word */
3150 {
3151 inc_cursor();
3152 break;
3153 }
3154 }
3155 }
3156
3157 static void
3158 find_first_blank(posp)
3159 pos_T *posp;
3160 {
3161 int c;
3162
3163 while (decl(posp) != -1)
3164 {
3165 c = gchar_pos(posp);
3166 if (!vim_iswhite(c))
3167 {
3168 incl(posp);
3169 break;
3170 }
3171 }
3172 }
3173
3174 /*
3175 * Skip count/2 sentences and count/2 separating white spaces.
3176 */
3177 static void
3178 findsent_forward(count, at_start_sent)
3179 long count;
3180 int at_start_sent; /* cursor is at start of sentence */
3181 {
3182 while (count--)
3183 {
3184 findsent(FORWARD, 1L);
3185 if (at_start_sent)
3186 find_first_blank(&curwin->w_cursor);
3187 if (count == 0 || at_start_sent)
3188 decl(&curwin->w_cursor);
3189 at_start_sent = !at_start_sent;
3190 }
3191 }
3192
3193 /*
3194 * Find word under cursor, cursor at end.
3195 * Used while an operator is pending, and in Visual mode.
3196 */
3197 int
3198 current_word(oap, count, include, bigword)
3199 oparg_T *oap;
3200 long count;
3201 int include; /* TRUE: include word and white space */
3202 int bigword; /* FALSE == word, TRUE == WORD */
3203 {
3204 pos_T start_pos;
3205 pos_T pos;
3206 int inclusive = TRUE;
3207 int include_white = FALSE;
3208
3209 cls_bigword = bigword;
3210 clearpos(&start_pos);
3211
3212 #ifdef FEAT_VISUAL
3213 /* Correct cursor when 'selection' is exclusive */
3214 if (VIsual_active && *p_sel == 'e' && lt(VIsual, curwin->w_cursor))
3215 dec_cursor();
3216
3217 /*
3218 * When Visual mode is not active, or when the VIsual area is only one
3219 * character, select the word and/or white space under the cursor.
3220 */
3221 if (!VIsual_active || equalpos(curwin->w_cursor, VIsual))
3222 #endif
3223 {
3224 /*
3225 * Go to start of current word or white space.
3226 */
3227 back_in_line();
3228 start_pos = curwin->w_cursor;
3229
3230 /*
3231 * If the start is on white space, and white space should be included
3232 * (" word"), or start is not on white space, and white space should
3233 * not be included ("word"), find end of word.
3234 */
3235 if ((cls() == 0) == include)
3236 {
3237 if (end_word(1L, bigword, TRUE, TRUE) == FAIL)
3238 return FAIL;
3239 }
3240 else
3241 {
3242 /*
3243 * If the start is not on white space, and white space should be
3244 * included ("word "), or start is on white space and white
3245 * space should not be included (" "), find start of word.
3246 * If we end up in the first column of the next line (single char
3247 * word) back up to end of the line.
3248 */
3249 fwd_word(1L, bigword, TRUE);
3250 if (curwin->w_cursor.col == 0)
3251 decl(&curwin->w_cursor);
3252 else
3253 oneleft();
3254
3255 if (include)
3256 include_white = TRUE;
3257 }
3258
3259 #ifdef FEAT_VISUAL
3260 if (VIsual_active)
3261 {
3262 /* should do something when inclusive == FALSE ! */
3263 VIsual = start_pos;
3264 redraw_curbuf_later(INVERTED); /* update the inversion */
3265 }
3266 else
3267 #endif
3268 {
3269 oap->start = start_pos;
3270 oap->motion_type = MCHAR;
3271 }
3272 --count;
3273 }
3274
3275 /*
3276 * When count is still > 0, extend with more objects.
3277 */
3278 while (count > 0)
3279 {
3280 inclusive = TRUE;
3281 #ifdef FEAT_VISUAL
3282 if (VIsual_active && lt(curwin->w_cursor, VIsual))
3283 {
3284 /*
3285 * In Visual mode, with cursor at start: move cursor back.
3286 */
3287 if (decl(&curwin->w_cursor) == -1)
3288 return FAIL;
3289 if (include != (cls() != 0))
3290 {
3291 if (bck_word(1L, bigword, TRUE) == FAIL)
3292 return FAIL;
3293 }
3294 else
3295 {
3296 if (bckend_word(1L, bigword, TRUE) == FAIL)
3297 return FAIL;
3298 (void)incl(&curwin->w_cursor);
3299 }
3300 }
3301 else
3302 #endif
3303 {
3304 /*
3305 * Move cursor forward one word and/or white area.
3306 */
3307 if (incl(&curwin->w_cursor) == -1)
3308 return FAIL;
3309 if (include != (cls() == 0))
3310 {
3311 if (fwd_word(1L, bigword, TRUE) == FAIL && count > 1)
3312 return FAIL;
3313 /*
3314 * If end is just past a new-line, we don't want to include
3315 * the first character on the line.
3316 * Put cursor on last char of white.
3317 */
3318 if (oneleft() == FAIL)
3319 inclusive = FALSE;
3320 }
3321 else
3322 {
3323 if (end_word(1L, bigword, TRUE, TRUE) == FAIL)
3324 return FAIL;
3325 }
3326 }
3327 --count;
3328 }
3329
3330 if (include_white && (cls() != 0
3331 || (curwin->w_cursor.col == 0 && !inclusive)))
3332 {
3333 /*
3334 * If we don't include white space at the end, move the start
3335 * to include some white space there. This makes "daw" work
3336 * better on the last word in a sentence (and "2daw" on last-but-one
3337 * word). Also when "2daw" deletes "word." at the end of the line
3338 * (cursor is at start of next line).
3339 * But don't delete white space at start of line (indent).
3340 */
3341 pos = curwin->w_cursor; /* save cursor position */
3342 curwin->w_cursor = start_pos;
3343 if (oneleft() == OK)
3344 {
3345 back_in_line();
3346 if (cls() == 0 && curwin->w_cursor.col > 0)
3347 {
3348 #ifdef FEAT_VISUAL
3349 if (VIsual_active)
3350 VIsual = curwin->w_cursor;
3351 else
3352 #endif
3353 oap->start = curwin->w_cursor;
3354 }
3355 }
3356 curwin->w_cursor = pos; /* put cursor back at end */
3357 }
3358
3359 #ifdef FEAT_VISUAL
3360 if (VIsual_active)
3361 {
3362 if (*p_sel == 'e' && inclusive && ltoreq(VIsual, curwin->w_cursor))
3363 inc_cursor();
3364 if (VIsual_mode == 'V')
3365 {
3366 VIsual_mode = 'v';
3367 redraw_cmdline = TRUE; /* show mode later */
3368 }
3369 }
3370 else
3371 #endif
3372 oap->inclusive = inclusive;
3373
3374 return OK;
3375 }
3376
3377 /*
3378 * Find sentence(s) under the cursor, cursor at end.
3379 * When Visual active, extend it by one or more sentences.
3380 */
3381 int
3382 current_sent(oap, count, include)
3383 oparg_T *oap;
3384 long count;
3385 int include;
3386 {
3387 pos_T start_pos;
3388 pos_T pos;
3389 int start_blank;
3390 int c;
3391 int at_start_sent;
3392 long ncount;
3393
3394 start_pos = curwin->w_cursor;
3395 pos = start_pos;
3396 findsent(FORWARD, 1L); /* Find start of next sentence. */
3397
3398 #ifdef FEAT_VISUAL
3399 /*
3400 * When visual area is bigger than one character: Extend it.
3401 */
3402 if (VIsual_active && !equalpos(start_pos, VIsual))
3403 {
3404 extend:
3405 if (lt(start_pos, VIsual))
3406 {
3407 /*
3408 * Cursor at start of Visual area.
3409 * Find out where we are:
3410 * - in the white space before a sentence
3411 * - in a sentence or just after it
3412 * - at the start of a sentence
3413 */
3414 at_start_sent = TRUE;
3415 decl(&pos);
3416 while (lt(pos, curwin->w_cursor))
3417 {
3418 c = gchar_pos(&pos);
3419 if (!vim_iswhite(c))
3420 {
3421 at_start_sent = FALSE;
3422 break;
3423 }
3424 incl(&pos);
3425 }
3426 if (!at_start_sent)
3427 {
3428 findsent(BACKWARD, 1L);
3429 if (equalpos(curwin->w_cursor, start_pos))
3430 at_start_sent = TRUE; /* exactly at start of sentence */
3431 else
3432 /* inside a sentence, go to its end (start of next) */
3433 findsent(FORWARD, 1L);
3434 }
3435 if (include) /* "as" gets twice as much as "is" */
3436 count *= 2;
3437 while (count--)
3438 {
3439 if (at_start_sent)
3440 find_first_blank(&curwin->w_cursor);
3441 c = gchar_cursor();
3442 if (!at_start_sent || (!include && !vim_iswhite(c)))
3443 findsent(BACKWARD, 1L);
3444 at_start_sent = !at_start_sent;
3445 }
3446 }
3447 else
3448 {
3449 /*
3450 * Cursor at end of Visual area.
3451 * Find out where we are:
3452 * - just before a sentence
3453 * - just before or in the white space before a sentence
3454 * - in a sentence
3455 */
3456 incl(&pos);
3457 at_start_sent = TRUE;
3458 if (!equalpos(pos, curwin->w_cursor)) /* not just before a sentence */
3459 {
3460 at_start_sent = FALSE;
3461 while (lt(pos, curwin->w_cursor))
3462 {
3463 c = gchar_pos(&pos);
3464 if (!vim_iswhite(c))
3465 {
3466 at_start_sent = TRUE;
3467 break;
3468 }
3469 incl(&pos);
3470 }
3471 if (at_start_sent) /* in the sentence */
3472 findsent(BACKWARD, 1L);
3473 else /* in/before white before a sentence */
3474 curwin->w_cursor = start_pos;
3475 }
3476
3477 if (include) /* "as" gets twice as much as "is" */
3478 count *= 2;
3479 findsent_forward(count, at_start_sent);
3480 if (*p_sel == 'e')
3481 ++curwin->w_cursor.col;
3482 }
3483 return OK;
3484 }
3485 #endif
3486
3487 /*
3488 * If cursor started on blank, check if it is just before the start of the
3489 * next sentence.
3490 */
3491 while (c = gchar_pos(&pos), vim_iswhite(c)) /* vim_iswhite() is a macro */
3492 incl(&pos);
3493 if (equalpos(pos, curwin->w_cursor))
3494 {
3495 start_blank = TRUE;
3496 find_first_blank(&start_pos); /* go back to first blank */
3497 }
3498 else
3499 {
3500 start_blank = FALSE;
3501 findsent(BACKWARD, 1L);
3502 start_pos = curwin->w_cursor;
3503 }
3504 if (include)
3505 ncount = count * 2;
3506 else
3507 {
3508 ncount = count;
3509 if (start_blank)
3510 --ncount;
3511 }
3512 if (ncount > 0)
3513 findsent_forward(ncount, TRUE);
3514 else
3515 decl(&curwin->w_cursor);
3516
3517 if (include)
3518 {
3519 /*
3520 * If the blank in front of the sentence is included, exclude the
3521 * blanks at the end of the sentence, go back to the first blank.
3522 * If there are no trailing blanks, try to include leading blanks.
3523 */
3524 if (start_blank)
3525 {
3526 find_first_blank(&curwin->w_cursor);
3527 c = gchar_pos(&curwin->w_cursor); /* vim_iswhite() is a macro */
3528 if (vim_iswhite(c))
3529 decl(&curwin->w_cursor);
3530 }
3531 else if (c = gchar_cursor(), !vim_iswhite(c))
3532 find_first_blank(&start_pos);
3533 }
3534
3535 #ifdef FEAT_VISUAL
3536 if (VIsual_active)
3537 {
3538 /* avoid getting stuck with "is" on a single space before a sent. */
3539 if (equalpos(start_pos, curwin->w_cursor))
3540 goto extend;
3541 if (*p_sel == 'e')
3542 ++curwin->w_cursor.col;
3543 VIsual = start_pos;
3544 VIsual_mode = 'v';
3545 redraw_curbuf_later(INVERTED); /* update the inversion */
3546 }
3547 else
3548 #endif
3549 {
3550 /* include a newline after the sentence, if there is one */
3551 if (incl(&curwin->w_cursor) == -1)
3552 oap->inclusive = TRUE;
3553 else
3554 oap->inclusive = FALSE;
3555 oap->start = start_pos;
3556 oap->motion_type = MCHAR;
3557 }
3558 return OK;
3559 }
3560
3561 /*
3562 * Find block under the cursor, cursor at end.
3563 * "what" and "other" are two matching parenthesis/paren/etc.
3564 */
3565 int
3566 current_block(oap, count, include, what, other)
3567 oparg_T *oap;
3568 long count;
3569 int include; /* TRUE == include white space */
3570 int what; /* '(', '{', etc. */
3571 int other; /* ')', '}', etc. */
3572 {
3573 pos_T old_pos;
3574 pos_T *pos = NULL;
3575 pos_T start_pos;
3576 pos_T *end_pos;
3577 pos_T old_start, old_end;
3578 char_u *save_cpo;
3579 int sol = FALSE; /* '{' at start of line */
3580
3581 old_pos = curwin->w_cursor;
3582 old_end = curwin->w_cursor; /* remember where we started */
3583 old_start = old_end;
3584
3585 /*
3586 * If we start on '(', '{', ')', '}', etc., use the whole block inclusive.
3587 */
3588 #ifdef FEAT_VISUAL
3589 if (!VIsual_active || equalpos(VIsual, curwin->w_cursor))
3590 #endif
3591 {
3592 setpcmark();
3593 if (what == '{') /* ignore indent */
3594 while (inindent(1))
3595 if (inc_cursor() != 0)
3596 break;
3597 if (gchar_cursor() == what)
3598 /* cursor on '(' or '{', move cursor just after it */
3599 ++curwin->w_cursor.col;
3600 }
3601 #ifdef FEAT_VISUAL
3602 else if (lt(VIsual, curwin->w_cursor))
3603 {
3604 old_start = VIsual;
3605 curwin->w_cursor = VIsual; /* cursor at low end of Visual */
3606 }
3607 else
3608 old_end = VIsual;
3609 #endif
3610
3611 /*
3612 * Search backwards for unclosed '(', '{', etc..
3613 * Put this position in start_pos.
3614 * Ignore quotes here.
3615 */
3616 save_cpo = p_cpo;
3617 p_cpo = (char_u *)"%";
3618 while (count-- > 0)
3619 {
3620 if ((pos = findmatch(NULL, what)) == NULL)
3621 break;
3622 curwin->w_cursor = *pos;
3623 start_pos = *pos; /* the findmatch for end_pos will overwrite *pos */
3624 }
3625 p_cpo = save_cpo;
3626
3627 /*
3628 * Search for matching ')', '}', etc.
3629 * Put this position in curwin->w_cursor.
3630 */
3631 if (pos == NULL || (end_pos = findmatch(NULL, other)) == NULL)
3632 {
3633 curwin->w_cursor = old_pos;
3634 return FAIL;
3635 }
3636 curwin->w_cursor = *end_pos;
3637
3638 /*
3639 * Try to exclude the '(', '{', ')', '}', etc. when "include" is FALSE.
3640 * If the ending '}' is only preceded by indent, skip that indent.
3641 * But only if the resulting area is not smaller than what we started with.
3642 */
3643 while (!include)
3644 {
3645 incl(&start_pos);
3646 sol = (curwin->w_cursor.col == 0);
3647 decl(&curwin->w_cursor);
3648 if (what == '{')
3649 while (inindent(1))
3650 {
3651 sol = TRUE;
3652 if (decl(&curwin->w_cursor) != 0)
3653 break;
3654 }
3655 #ifdef FEAT_VISUAL
3656 /*
3657 * In Visual mode, when the resulting area is not bigger than what we
3658 * started with, extend it to the next block, and then exclude again.
3659 */
3660 if (!lt(start_pos, old_start) && !lt(old_end, curwin->w_cursor)
3661 && VIsual_active)
3662 {
3663 curwin->w_cursor = old_start;
3664 decl(&curwin->w_cursor);
3665 if ((pos = findmatch(NULL, what)) == NULL)
3666 {
3667 curwin->w_cursor = old_pos;
3668 return FAIL;
3669 }
3670 start_pos = *pos;
3671 curwin->w_cursor = *pos;
3672 if ((end_pos = findmatch(NULL, other)) == NULL)
3673 {
3674 curwin->w_cursor = old_pos;
3675 return FAIL;
3676 }
3677 curwin->w_cursor = *end_pos;
3678 }
3679 else
3680 #endif
3681 break;
3682 }
3683
3684 #ifdef FEAT_VISUAL
3685 if (VIsual_active)
3686 {
3687 if (*p_sel == 'e')
3688 ++curwin->w_cursor.col;
3689 if (sol && gchar_cursor() != NUL)
3690 inc(&curwin->w_cursor); /* include the line break */
3691 VIsual = start_pos;
3692 VIsual_mode = 'v';
3693 redraw_curbuf_later(INVERTED); /* update the inversion */
3694 showmode();
3695 }
3696 else
3697 #endif
3698 {
3699 oap->start = start_pos;
3700 oap->motion_type = MCHAR;
3701 oap->inclusive = FALSE;
3702 if (sol)
3703 incl(&curwin->w_cursor);
3704 else if (ltoreq(start_pos, curwin->w_cursor))
3705 /* Include the character under the cursor. */
3706 oap->inclusive = TRUE;
3707 else
3708 /* End is before the start (no text in between <>, [], etc.): don't
3709 * operate on any text. */
3710 curwin->w_cursor = start_pos;
3711 }
3712
3713 return OK;
3714 }
3715
3716 static int in_html_tag __ARGS((int));
3717
3718 /*
3719 * Return TRUE if the cursor is on a "<aaa>" tag. Ignore "<aaa/>".
3720 * When "end_tag" is TRUE return TRUE if the cursor is on "</aaa>".
3721 */
3722 static int
3723 in_html_tag(end_tag)
3724 int end_tag;
3725 {
3726 char_u *line = ml_get_curline();
3727 char_u *p;
3728 int c;
3729 int lc = NUL;
3730 pos_T pos;
3731
3732 #ifdef FEAT_MBYTE
3733 if (enc_dbcs)
3734 {
3735 char_u *lp = NULL;
3736
3737 /* We search forward until the cursor, because searching backwards is
3738 * very slow for DBCS encodings. */
3739 for (p = line; p < line + curwin->w_cursor.col; mb_ptr_adv(p))
3740 if (*p == '>' || *p == '<')
3741 {
3742 lc = *p;
3743 lp = p;
3744 }
3745 if (*p != '<') /* check for '<' under cursor */
3746 {
3747 if (lc != '<')
3748 return FALSE;
3749 p = lp;
3750 }
3751 }
3752 else
3753 #endif
3754 {
3755 for (p = line + curwin->w_cursor.col; p > line; )
3756 {
3757 if (*p == '<') /* find '<' under/before cursor */
3758 break;
3759 mb_ptr_back(line, p);
3760 if (*p == '>') /* find '>' before cursor */
3761 break;
3762 }
3763 if (*p != '<')
3764 return FALSE;
3765 }
3766
3767 pos.lnum = curwin->w_cursor.lnum;
3768 pos.col = (colnr_T)(p - line);
3769
3770 mb_ptr_adv(p);
3771 if (end_tag)
3772 /* check that there is a '/' after the '<' */
3773 return *p == '/';
3774
3775 /* check that there is no '/' after the '<' */
3776 if (*p == '/')
3777 return FALSE;
3778
3779 /* check that the matching '>' is not preceded by '/' */
3780 for (;;)
3781 {
3782 if (inc(&pos) < 0)
3783 return FALSE;
3784 c = *ml_get_pos(&pos);
3785 if (c == '>')
3786 break;
3787 lc = c;
3788 }
3789 return lc != '/';
3790 }
3791
3792 /*
3793 * Find tag block under the cursor, cursor at end.
3794 */
3795 int
3796 current_tagblock(oap, count_arg, include)
3797 oparg_T *oap;
3798 long count_arg;
3799 int include; /* TRUE == include white space */
3800 {
3801 long count = count_arg;
3802 long n;
3803 pos_T old_pos;
3804 pos_T start_pos;
3805 pos_T end_pos;
3806 pos_T old_start, old_end;
3807 char_u *spat, *epat;
3808 char_u *p;
3809 char_u *cp;
3810 int len;
3811 int r;
3812 int do_include = include;
3813 int save_p_ws = p_ws;
3814 int retval = FAIL;
3815
3816 p_ws = FALSE;
3817
3818 old_pos = curwin->w_cursor;
3819 old_end = curwin->w_cursor; /* remember where we started */
3820 old_start = old_end;
3821 #ifdef FEAT_VISUAL
3822 if (!VIsual_active || *p_sel == 'e')
3823 #endif
3824 decl(&old_end); /* old_end is inclusive */
3825
3826 /*
3827 * If we start on "<aaa>" select that block.
3828 */
3829 #ifdef FEAT_VISUAL
3830 if (!VIsual_active || equalpos(VIsual, curwin->w_cursor))
3831 #endif
3832 {
3833 setpcmark();
3834
3835 /* ignore indent */
3836 while (inindent(1))
3837 if (inc_cursor() != 0)
3838 break;
3839
3840 if (in_html_tag(FALSE))
3841 {
3842 /* cursor on start tag, move to its '>' */
3843 while (*ml_get_cursor() != '>')
3844 if (inc_cursor() < 0)
3845 break;
3846 }
3847 else if (in_html_tag(TRUE))
3848 {
3849 /* cursor on end tag, move to just before it */
3850 while (*ml_get_cursor() != '<')
3851 if (dec_cursor() < 0)
3852 break;
3853 dec_cursor();
3854 old_end = curwin->w_cursor;
3855 }
3856 }
3857 #ifdef FEAT_VISUAL
3858 else if (lt(VIsual, curwin->w_cursor))
3859 {
3860 old_start = VIsual;
3861 curwin->w_cursor = VIsual; /* cursor at low end of Visual */
3862 }
3863 else
3864 old_end = VIsual;
3865 #endif
3866
3867 again:
3868 /*
3869 * Search backwards for unclosed "<aaa>".
3870 * Put this position in start_pos.
3871 */
3872 for (n = 0; n < count; ++n)
3873 {
3874 if (do_searchpair((char_u *)"<[^ \t>/!]\\+\\%(\\_s\\_[^>]\\{-}[^/]>\\|$\\|\\_s\\=>\\)",
3875 (char_u *)"",
3876 (char_u *)"</[^>]*>", BACKWARD, (char_u *)"", 0,
3877 NULL, (linenr_T)0, 0L) <= 0)
3878 {
3879 curwin->w_cursor = old_pos;
3880 goto theend;
3881 }
3882 }
3883 start_pos = curwin->w_cursor;
3884
3885 /*
3886 * Search for matching "</aaa>". First isolate the "aaa".
3887 */
3888 inc_cursor();
3889 p = ml_get_cursor();
3890 for (cp = p; *cp != NUL && *cp != '>' && !vim_iswhite(*cp); mb_ptr_adv(cp))
3891 ;
3892 len = (int)(cp - p);
3893 if (len == 0)
3894 {
3895 curwin->w_cursor = old_pos;
3896 goto theend;
3897 }
3898 spat = alloc(len + 29);
3899 epat = alloc(len + 9);
3900 if (spat == NULL || epat == NULL)
3901 {
3902 vim_free(spat);
3903 vim_free(epat);
3904 curwin->w_cursor = old_pos;
3905 goto theend;
3906 }
3907 sprintf((char *)spat, "<%.*s\\%%(\\_[^>]\\{-}[^/]>\\|>\\)\\c", len, p);
3908 sprintf((char *)epat, "</%.*s>\\c", len, p);
3909
3910 r = do_searchpair(spat, (char_u *)"", epat, FORWARD, (char_u *)"",
3911 0, NULL, (linenr_T)0, 0L);
3912
3913 vim_free(spat);
3914 vim_free(epat);
3915
3916 if (r < 1 || lt(curwin->w_cursor, old_end))
3917 {
3918 /* Can't find other end or it's before the previous end. Could be a
3919 * HTML tag that doesn't have a matching end. Search backwards for
3920 * another starting tag. */
3921 count = 1;
3922 curwin->w_cursor = start_pos;
3923 goto again;
3924 }
3925
3926 if (do_include || r < 1)
3927 {
3928 /* Include up to the '>'. */
3929 while (*ml_get_cursor() != '>')
3930 if (inc_cursor() < 0)
3931 break;
3932 }
3933 else
3934 {
3935 /* Exclude the '<' of the end tag. */
3936 if (*ml_get_cursor() == '<')
3937 dec_cursor();
3938 }
3939 end_pos = curwin->w_cursor;
3940
3941 if (!do_include)
3942 {
3943 /* Exclude the start tag. */
3944 curwin->w_cursor = start_pos;
3945 while (inc_cursor() >= 0)
3946 if (*ml_get_cursor() == '>')
3947 {
3948 inc_cursor();
3949 start_pos = curwin->w_cursor;
3950 break;
3951 }
3952 curwin->w_cursor = end_pos;
3953
3954 /* If we now have the same text as before reset "do_include" and try
3955 * again. */
3956 if (equalpos(start_pos, old_start) && equalpos(end_pos, old_end))
3957 {
3958 do_include = TRUE;
3959 curwin->w_cursor = old_start;
3960 count = count_arg;
3961 goto again;
3962 }
3963 }
3964
3965 #ifdef FEAT_VISUAL
3966 if (VIsual_active)
3967 {
3968 /* If the end is before the start there is no text between tags, select
3969 * the char under the cursor. */
3970 if (lt(end_pos, start_pos))
3971 curwin->w_cursor = start_pos;
3972 else if (*p_sel == 'e')
3973 ++curwin->w_cursor.col;
3974 VIsual = start_pos;
3975 VIsual_mode = 'v';
3976 redraw_curbuf_later(INVERTED); /* update the inversion */
3977 showmode();
3978 }
3979 else
3980 #endif
3981 {
3982 oap->start = start_pos;
3983 oap->motion_type = MCHAR;
3984 if (lt(end_pos, start_pos))
3985 {
3986 /* End is before the start: there is no text between tags; operate
3987 * on an empty area. */
3988 curwin->w_cursor = start_pos;
3989 oap->inclusive = FALSE;
3990 }
3991 else
3992 oap->inclusive = TRUE;
3993 }
3994 retval = OK;
3995
3996 theend:
3997 p_ws = save_p_ws;
3998 return retval;
3999 }
4000
4001 int
4002 current_par(oap, count, include, type)
4003 oparg_T *oap;
4004 long count;
4005 int include; /* TRUE == include white space */
4006 int type; /* 'p' for paragraph, 'S' for section */
4007 {
4008 linenr_T start_lnum;
4009 linenr_T end_lnum;
4010 int white_in_front;
4011 int dir;
4012 int start_is_white;
4013 int prev_start_is_white;
4014 int retval = OK;
4015 int do_white = FALSE;
4016 int t;
4017 int i;
4018
4019 if (type == 'S') /* not implemented yet */
4020 return FAIL;
4021
4022 start_lnum = curwin->w_cursor.lnum;
4023
4024 #ifdef FEAT_VISUAL
4025 /*
4026 * When visual area is more than one line: extend it.
4027 */
4028 if (VIsual_active && start_lnum != VIsual.lnum)
4029 {
4030 extend:
4031 if (start_lnum < VIsual.lnum)
4032 dir = BACKWARD;
4033 else
4034 dir = FORWARD;
4035 for (i = count; --i >= 0; )
4036 {
4037 if (start_lnum ==
4038 (dir == BACKWARD ? 1 : curbuf->b_ml.ml_line_count))
4039 {
4040 retval = FAIL;
4041 break;
4042 }
4043
4044 prev_start_is_white = -1;
4045 for (t = 0; t < 2; ++t)
4046 {
4047 start_lnum += dir;
4048 start_is_white = linewhite(start_lnum);
4049 if (prev_start_is_white == start_is_white)
4050 {
4051 start_lnum -= dir;
4052 break;
4053 }
4054 for (;;)
4055 {
4056 if (start_lnum == (dir == BACKWARD
4057 ? 1 : curbuf->b_ml.ml_line_count))
4058 break;
4059 if (start_is_white != linewhite(start_lnum + dir)
4060 || (!start_is_white
4061 && startPS(start_lnum + (dir > 0
4062 ? 1 : 0), 0, 0)))
4063 break;
4064 start_lnum += dir;
4065 }
4066 if (!include)
4067 break;
4068 if (start_lnum == (dir == BACKWARD
4069 ? 1 : curbuf->b_ml.ml_line_count))
4070 break;
4071 prev_start_is_white = start_is_white;
4072 }
4073 }
4074 curwin->w_cursor.lnum = start_lnum;
4075 curwin->w_cursor.col = 0;
4076 return retval;
4077 }
4078 #endif
4079
4080 /*
4081 * First move back to the start_lnum of the paragraph or white lines
4082 */
4083 white_in_front = linewhite(start_lnum);
4084 while (start_lnum > 1)
4085 {
4086 if (white_in_front) /* stop at first white line */
4087 {
4088 if (!linewhite(start_lnum - 1))
4089 break;
4090 }
4091 else /* stop at first non-white line of start of paragraph */
4092 {
4093 if (linewhite(start_lnum - 1) || startPS(start_lnum, 0, 0))
4094 break;
4095 }
4096 --start_lnum;
4097 }
4098
4099 /*
4100 * Move past the end of any white lines.
4101 */
4102 end_lnum = start_lnum;
4103 while (end_lnum <= curbuf->b_ml.ml_line_count && linewhite(end_lnum))
4104 ++end_lnum;
4105
4106 --end_lnum;
4107 i = count;
4108 if (!include && white_in_front)
4109 --i;
4110 while (i--)
4111 {
4112 if (end_lnum == curbuf->b_ml.ml_line_count)
4113 return FAIL;
4114
4115 if (!include)
4116 do_white = linewhite(end_lnum + 1);
4117
4118 if (include || !do_white)
4119 {
4120 ++end_lnum;
4121 /*
4122 * skip to end of paragraph
4123 */
4124 while (end_lnum < curbuf->b_ml.ml_line_count
4125 && !linewhite(end_lnum + 1)
4126 && !startPS(end_lnum + 1, 0, 0))
4127 ++end_lnum;
4128 }
4129
4130 if (i == 0 && white_in_front && include)
4131 break;
4132
4133 /*
4134 * skip to end of white lines after paragraph
4135 */
4136 if (include || do_white)
4137 while (end_lnum < curbuf->b_ml.ml_line_count
4138 && linewhite(end_lnum + 1))
4139 ++end_lnum;
4140 }
4141
4142 /*
4143 * If there are no empty lines at the end, try to find some empty lines at
4144 * the start (unless that has been done already).
4145 */
4146 if (!white_in_front && !linewhite(end_lnum) && include)
4147 while (start_lnum > 1 && linewhite(start_lnum - 1))
4148 --start_lnum;
4149
4150 #ifdef FEAT_VISUAL
4151 if (VIsual_active)
4152 {
4153 /* Problem: when doing "Vipipip" nothing happens in a single white
4154 * line, we get stuck there. Trap this here. */
4155 if (VIsual_mode == 'V' && start_lnum == curwin->w_cursor.lnum)
4156 goto extend;
4157 VIsual.lnum = start_lnum;
4158 VIsual_mode = 'V';
4159 redraw_curbuf_later(INVERTED); /* update the inversion */
4160 showmode();
4161 }
4162 else
4163 #endif
4164 {
4165 oap->start.lnum = start_lnum;
4166 oap->start.col = 0;
4167 oap->motion_type = MLINE;
4168 }
4169 curwin->w_cursor.lnum = end_lnum;
4170 curwin->w_cursor.col = 0;
4171
4172 return OK;
4173 }
4174
4175 static int find_next_quote __ARGS((char_u *top_ptr, int col, int quotechar, char_u *escape));
4176 static int find_prev_quote __ARGS((char_u *line, int col_start, int quotechar, char_u *escape));
4177
4178 /*
4179 * Search quote char from string line[col].
4180 * Quote character escaped by one of the characters in "escape" is not counted
4181 * as a quote.
4182 * Returns column number of "quotechar" or -1 when not found.
4183 */
4184 static int
4185 find_next_quote(line, col, quotechar, escape)
4186 char_u *line;
4187 int col;
4188 int quotechar;
4189 char_u *escape; /* escape characters, can be NULL */
4190 {
4191 int c;
4192
4193 for (;;)
4194 {
4195 c = line[col];
4196 if (c == NUL)
4197 return -1;
4198 else if (escape != NULL && vim_strchr(escape, c))
4199 ++col;
4200 else if (c == quotechar)
4201 break;
4202 #ifdef FEAT_MBYTE
4203 if (has_mbyte)
4204 col += (*mb_ptr2len)(line + col);
4205 else
4206 #endif
4207 ++col;
4208 }
4209 return col;
4210 }
4211
4212 /*
4213 * Search backwards in "line" from column "col_start" to find "quotechar".
4214 * Quote character escaped by one of the characters in "escape" is not counted
4215 * as a quote.
4216 * Return the found column or zero.
4217 */
4218 static int
4219 find_prev_quote(line, col_start, quotechar, escape)
4220 char_u *line;
4221 int col_start;
4222 int quotechar;
4223 char_u *escape; /* escape characters, can be NULL */
4224 {
4225 int n;
4226
4227 while (col_start > 0)
4228 {
4229 --col_start;
4230 #ifdef FEAT_MBYTE
4231 col_start -= (*mb_head_off)(line, line + col_start);
4232 #endif
4233 n = 0;
4234 if (escape != NULL)
4235 while (col_start - n > 0 && vim_strchr(escape,
4236 line[col_start - n - 1]) != NULL)
4237 ++n;
4238 if (n & 1)
4239 col_start -= n; /* uneven number of escape chars, skip it */
4240 else if (line[col_start] == quotechar)
4241 break;
4242 }
4243 return col_start;
4244 }
4245
4246 /*
4247 * Find quote under the cursor, cursor at end.
4248 * Returns TRUE if found, else FALSE.
4249 */
4250 int
4251 current_quote(oap, count, include, quotechar)
4252 oparg_T *oap;
4253 long count;
4254 int include; /* TRUE == include quote char */
4255 int quotechar; /* Quote character */
4256 {
4257 char_u *line = ml_get_curline();
4258 int col_end;
4259 int col_start = curwin->w_cursor.col;
4260 int inclusive = FALSE;
4261 #ifdef FEAT_VISUAL
4262 int vis_empty = TRUE; /* Visual selection <= 1 char */
4263 int vis_bef_curs = FALSE; /* Visual starts before cursor */
4264 int inside_quotes = FALSE; /* Looks like "i'" done before */
4265 int selected_quote = FALSE; /* Has quote inside selection */
4266 int i;
4267
4268 /* Correct cursor when 'selection' is exclusive */
4269 if (VIsual_active)
4270 {
4271 vis_bef_curs = lt(VIsual, curwin->w_cursor);
4272 if (*p_sel == 'e' && vis_bef_curs)
4273 dec_cursor();
4274 vis_empty = equalpos(VIsual, curwin->w_cursor);
4275 }
4276
4277 if (!vis_empty)
4278 {
4279 /* Check if the existing selection exactly spans the text inside
4280 * quotes. */
4281 if (vis_bef_curs)
4282 {
4283 inside_quotes = VIsual.col > 0
4284 && line[VIsual.col - 1] == quotechar
4285 && line[curwin->w_cursor.col] != NUL
4286 && line[curwin->w_cursor.col + 1] == quotechar;
4287 i = VIsual.col;
4288 col_end = curwin->w_cursor.col;
4289 }
4290 else
4291 {
4292 inside_quotes = curwin->w_cursor.col > 0
4293 && line[curwin->w_cursor.col - 1] == quotechar
4294 && line[VIsual.col] != NUL
4295 && line[VIsual.col + 1] == quotechar;
4296 i = curwin->w_cursor.col;
4297 col_end = VIsual.col;
4298 }
4299
4300 /* Find out if we have a quote in the selection. */
4301 while (i <= col_end)
4302 if (line[i++] == quotechar)
4303 {
4304 selected_quote = TRUE;
4305 break;
4306 }
4307 }
4308
4309 if (!vis_empty && line[col_start] == quotechar)
4310 {
4311 /* Already selecting something and on a quote character. Find the
4312 * next quoted string. */
4313 if (vis_bef_curs)
4314 {
4315 /* Assume we are on a closing quote: move to after the next
4316 * opening quote. */
4317 col_start = find_next_quote(line, col_start + 1, quotechar, NULL);
4318 if (col_start < 0)
4319 return FALSE;
4320 col_end = find_next_quote(line, col_start + 1, quotechar,
4321 curbuf->b_p_qe);
4322 if (col_end < 0)
4323 {
4324 /* We were on a starting quote perhaps? */
4325 col_end = col_start;
4326 col_start = curwin->w_cursor.col;
4327 }
4328 }
4329 else
4330 {
4331 col_end = find_prev_quote(line, col_start, quotechar, NULL);
4332 if (line[col_end] != quotechar)
4333 return FALSE;
4334 col_start = find_prev_quote(line, col_end, quotechar,
4335 curbuf->b_p_qe);
4336 if (line[col_start] != quotechar)
4337 {
4338 /* We were on an ending quote perhaps? */
4339 col_start = col_end;
4340 col_end = curwin->w_cursor.col;
4341 }
4342 }
4343 }
4344 else
4345 #endif
4346
4347 if (line[col_start] == quotechar
4348 #ifdef FEAT_VISUAL
4349 || !vis_empty
4350 #endif
4351 )
4352 {
4353 int first_col = col_start;
4354
4355 #ifdef FEAT_VISUAL
4356 if (!vis_empty)
4357 {
4358 if (vis_bef_curs)
4359 first_col = find_next_quote(line, col_start, quotechar, NULL);
4360 else
4361 first_col = find_prev_quote(line, col_start, quotechar, NULL);
4362 }
4363 #endif
4364 /* The cursor is on a quote, we don't know if it's the opening or
4365 * closing quote. Search from the start of the line to find out.
4366 * Also do this when there is a Visual area, a' may leave the cursor
4367 * in between two strings. */
4368 col_start = 0;
4369 for (;;)
4370 {
4371 /* Find open quote character. */
4372 col_start = find_next_quote(line, col_start, quotechar, NULL);
4373 if (col_start < 0 || col_start > first_col)
4374 return FALSE;
4375 /* Find close quote character. */
4376 col_end = find_next_quote(line, col_start + 1, quotechar,
4377 curbuf->b_p_qe);
4378 if (col_end < 0)
4379 return FALSE;
4380 /* If is cursor between start and end quote character, it is
4381 * target text object. */
4382 if (col_start <= first_col && first_col <= col_end)
4383 break;
4384 col_start = col_end + 1;
4385 }
4386 }
4387 else
4388 {
4389 /* Search backward for a starting quote. */
4390 col_start = find_prev_quote(line, col_start, quotechar, curbuf->b_p_qe);
4391 if (line[col_start] != quotechar)
4392 {
4393 /* No quote before the cursor, look after the cursor. */
4394 col_start = find_next_quote(line, col_start, quotechar, NULL);
4395 if (col_start < 0)
4396 return FALSE;
4397 }
4398
4399 /* Find close quote character. */
4400 col_end = find_next_quote(line, col_start + 1, quotechar,
4401 curbuf->b_p_qe);
4402 if (col_end < 0)
4403 return FALSE;
4404 }
4405
4406 /* When "include" is TRUE, include spaces after closing quote or before
4407 * the starting quote. */
4408 if (include)
4409 {
4410 if (vim_iswhite(line[col_end + 1]))
4411 while (vim_iswhite(line[col_end + 1]))
4412 ++col_end;
4413 else
4414 while (col_start > 0 && vim_iswhite(line[col_start - 1]))
4415 --col_start;
4416 }
4417
4418 /* Set start position. After vi" another i" must include the ".
4419 * For v2i" include the quotes. */
4420 if (!include && count < 2
4421 #ifdef FEAT_VISUAL
4422 && (vis_empty || !inside_quotes)
4423 #endif
4424 )
4425 ++col_start;
4426 curwin->w_cursor.col = col_start;
4427 #ifdef FEAT_VISUAL
4428 if (VIsual_active)
4429 {
4430 /* Set the start of the Visual area when the Visual area was empty, we
4431 * were just inside quotes or the Visual area didn't start at a quote
4432 * and didn't include a quote.
4433 */
4434 if (vis_empty
4435 || (vis_bef_curs
4436 && !selected_quote
4437 && (inside_quotes
4438 || (line[VIsual.col] != quotechar
4439 && (VIsual.col == 0
4440 || line[VIsual.col - 1] != quotechar)))))
4441 {
4442 VIsual = curwin->w_cursor;
4443 redraw_curbuf_later(INVERTED);
4444 }
4445 }
4446 else
4447 #endif
4448 {
4449 oap->start = curwin->w_cursor;
4450 oap->motion_type = MCHAR;
4451 }
4452
4453 /* Set end position. */
4454 curwin->w_cursor.col = col_end;
4455 if ((include || count > 1
4456 #ifdef FEAT_VISUAL
4457 /* After vi" another i" must include the ". */
4458 || (!vis_empty && inside_quotes)
4459 #endif
4460 ) && inc_cursor() == 2)
4461 inclusive = TRUE;
4462 #ifdef FEAT_VISUAL
4463 if (VIsual_active)
4464 {
4465 if (vis_empty || vis_bef_curs)
4466 {
4467 /* decrement cursor when 'selection' is not exclusive */
4468 if (*p_sel != 'e')
4469 dec_cursor();
4470 }
4471 else
4472 {
4473 /* Cursor is at start of Visual area. Set the end of the Visual
4474 * area when it was just inside quotes or it didn't end at a
4475 * quote. */
4476 if (inside_quotes
4477 || (!selected_quote
4478 && line[VIsual.col] != quotechar
4479 && (line[VIsual.col] == NUL
4480 || line[VIsual.col + 1] != quotechar)))
4481 {
4482 dec_cursor();
4483 VIsual = curwin->w_cursor;
4484 }
4485 curwin->w_cursor.col = col_start;
4486 }
4487 if (VIsual_mode == 'V')
4488 {
4489 VIsual_mode = 'v';
4490 redraw_cmdline = TRUE; /* show mode later */
4491 }
4492 }
4493 else
4494 #endif
4495 {
4496 /* Set inclusive and other oap's flags. */
4497 oap->inclusive = inclusive;
4498 }
4499
4500 return OK;
4501 }
4502
4503 #endif /* FEAT_TEXTOBJ */
4504
4505 #if defined(FEAT_LISP) || defined(FEAT_CINDENT) || defined(FEAT_TEXTOBJ) \
4506 || defined(PROTO)
4507 /*
4508 * return TRUE if line 'lnum' is empty or has white chars only.
4509 */
4510 int
4511 linewhite(lnum)
4512 linenr_T lnum;
4513 {
4514 char_u *p;
4515
4516 p = skipwhite(ml_get(lnum));
4517 return (*p == NUL);
4518 }
4519 #endif
4520
4521 #if defined(FEAT_FIND_ID) || defined(PROTO)
4522 /*
4523 * Find identifiers or defines in included files.
4524 * if p_ic && (compl_cont_status & CONT_SOL) then ptr must be in lowercase.
4525 */
4526 /*ARGSUSED*/
4527 void
4528 find_pattern_in_path(ptr, dir, len, whole, skip_comments,
4529 type, count, action, start_lnum, end_lnum)
4530 char_u *ptr; /* pointer to search pattern */
4531 int dir; /* direction of expansion */
4532 int len; /* length of search pattern */
4533 int whole; /* match whole words only */
4534 int skip_comments; /* don't match inside comments */
4535 int type; /* Type of search; are we looking for a type?
4536 a macro? */
4537 long count;
4538 int action; /* What to do when we find it */
4539 linenr_T start_lnum; /* first line to start searching */
4540 linenr_T end_lnum; /* last line for searching */
4541 {
4542 SearchedFile *files; /* Stack of included files */
4543 SearchedFile *bigger; /* When we need more space */
4544 int max_path_depth = 50;
4545 long match_count = 1;
4546
4547 char_u *pat;
4548 char_u *new_fname;
4549 char_u *curr_fname = curbuf->b_fname;
4550 char_u *prev_fname = NULL;
4551 linenr_T lnum;
4552 int depth;
4553 int depth_displayed; /* For type==CHECK_PATH */
4554 int old_files;
4555 int already_searched;
4556 char_u *file_line;
4557 char_u *line;
4558 char_u *p;
4559 char_u save_char;
4560 int define_matched;
4561 regmatch_T regmatch;
4562 regmatch_T incl_regmatch;
4563 regmatch_T def_regmatch;
4564 int matched = FALSE;
4565 int did_show = FALSE;
4566 int found = FALSE;
4567 int i;
4568 char_u *already = NULL;
4569 char_u *startp = NULL;
4570 char_u *inc_opt = NULL;
4571 #ifdef RISCOS
4572 int previous_munging = __riscosify_control;
4573 #endif
4574 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
4575 win_T *curwin_save = NULL;
4576 #endif
4577
4578 regmatch.regprog = NULL;
4579 incl_regmatch.regprog = NULL;
4580 def_regmatch.regprog = NULL;
4581
4582 file_line = alloc(LSIZE);
4583 if (file_line == NULL)
4584 return;
4585
4586 #ifdef RISCOS
4587 /* UnixLib knows best how to munge c file names - turn munging back on. */
4588 int __riscosify_control = 0;
4589 #endif
4590
4591 if (type != CHECK_PATH && type != FIND_DEFINE
4592 #ifdef FEAT_INS_EXPAND
4593 /* when CONT_SOL is set compare "ptr" with the beginning of the line
4594 * is faster than quote_meta/regcomp/regexec "ptr" -- Acevedo */
4595 && !(compl_cont_status & CONT_SOL)
4596 #endif
4597 )
4598 {
4599 pat = alloc(len + 5);
4600 if (pat == NULL)
4601 goto fpip_end;
4602 sprintf((char *)pat, whole ? "\\<%.*s\\>" : "%.*s", len, ptr);
4603 /* ignore case according to p_ic, p_scs and pat */
4604 regmatch.rm_ic = ignorecase(pat);
4605 regmatch.regprog = vim_regcomp(pat, p_magic ? RE_MAGIC : 0);
4606 vim_free(pat);
4607 if (regmatch.regprog == NULL)
4608 goto fpip_end;
4609 }
4610 inc_opt = (*curbuf->b_p_inc == NUL) ? p_inc : curbuf->b_p_inc;
4611 if (*inc_opt != NUL)
4612 {
4613 incl_regmatch.regprog = vim_regcomp(inc_opt, p_magic ? RE_MAGIC : 0);
4614 if (incl_regmatch.regprog == NULL)
4615 goto fpip_end;
4616 incl_regmatch.rm_ic = FALSE; /* don't ignore case in incl. pat. */
4617 }
4618 if (type == FIND_DEFINE && (*curbuf->b_p_def != NUL || *p_def != NUL))
4619 {
4620 def_regmatch.regprog = vim_regcomp(*curbuf->b_p_def == NUL
4621 ? p_def : curbuf->b_p_def, p_magic ? RE_MAGIC : 0);
4622 if (def_regmatch.regprog == NULL)
4623 goto fpip_end;
4624 def_regmatch.rm_ic = FALSE; /* don't ignore case in define pat. */
4625 }
4626 files = (SearchedFile *)lalloc_clear((long_u)
4627 (max_path_depth * sizeof(SearchedFile)), TRUE);
4628 if (files == NULL)
4629 goto fpip_end;
4630 old_files = max_path_depth;
4631 depth = depth_displayed = -1;
4632
4633 lnum = start_lnum;
4634 if (end_lnum > curbuf->b_ml.ml_line_count)
4635 end_lnum = curbuf->b_ml.ml_line_count;
4636 if (lnum > end_lnum) /* do at least one line */
4637 lnum = end_lnum;
4638 line = ml_get(lnum);
4639
4640 for (;;)
4641 {
4642 if (incl_regmatch.regprog != NULL
4643 && vim_regexec(&incl_regmatch, line, (colnr_T)0))
4644 {
4645 char_u *p_fname = (curr_fname == curbuf->b_fname)
4646 ? curbuf->b_ffname : curr_fname;
4647
4648 if (inc_opt != NULL && strstr((char *)inc_opt, "\\zs") != NULL)
4649 /* Use text from '\zs' to '\ze' (or end) of 'include'. */
4650 new_fname = find_file_name_in_path(incl_regmatch.startp[0],
4651 (int)(incl_regmatch.endp[0] - incl_regmatch.startp[0]),
4652 FNAME_EXP|FNAME_INCL|FNAME_REL, 1L, p_fname);
4653 else
4654 /* Use text after match with 'include'. */
4655 new_fname = file_name_in_line(incl_regmatch.endp[0], 0,
4656 FNAME_EXP|FNAME_INCL|FNAME_REL, 1L, p_fname, NULL);
4657 already_searched = FALSE;
4658 if (new_fname != NULL)
4659 {
4660 /* Check whether we have already searched in this file */
4661 for (i = 0;; i++)
4662 {
4663 if (i == depth + 1)
4664 i = old_files;
4665 if (i == max_path_depth)
4666 break;
4667 if (fullpathcmp(new_fname, files[i].name, TRUE) & FPC_SAME)
4668 {
4669 if (type != CHECK_PATH &&
4670 action == ACTION_SHOW_ALL && files[i].matched)
4671 {
4672 msg_putchar('\n'); /* cursor below last one */
4673 if (!got_int) /* don't display if 'q'
4674 typed at "--more--"
4675 message */
4676 {
4677 msg_home_replace_hl(new_fname);
4678 MSG_PUTS(_(" (includes previously listed match)"));
4679 prev_fname = NULL;
4680 }
4681 }
4682 vim_free(new_fname);
4683 new_fname = NULL;
4684 already_searched = TRUE;
4685 break;
4686 }
4687 }
4688 }
4689
4690 if (type == CHECK_PATH && (action == ACTION_SHOW_ALL
4691 || (new_fname == NULL && !already_searched)))
4692 {
4693 if (did_show)
4694 msg_putchar('\n'); /* cursor below last one */
4695 else
4696 {
4697 gotocmdline(TRUE); /* cursor at status line */
4698 MSG_PUTS_TITLE(_("--- Included files "));
4699 if (action != ACTION_SHOW_ALL)
4700 MSG_PUTS_TITLE(_("not found "));
4701 MSG_PUTS_TITLE(_("in path ---\n"));
4702 }
4703 did_show = TRUE;
4704 while (depth_displayed < depth && !got_int)
4705 {
4706 ++depth_displayed;
4707 for (i = 0; i < depth_displayed; i++)
4708 MSG_PUTS(" ");
4709 msg_home_replace(files[depth_displayed].name);
4710 MSG_PUTS(" -->\n");
4711 }
4712 if (!got_int) /* don't display if 'q' typed
4713 for "--more--" message */
4714 {
4715 for (i = 0; i <= depth_displayed; i++)
4716 MSG_PUTS(" ");
4717 if (new_fname != NULL)
4718 {
4719 /* using "new_fname" is more reliable, e.g., when
4720 * 'includeexpr' is set. */
4721 msg_outtrans_attr(new_fname, hl_attr(HLF_D));
4722 }
4723 else
4724 {
4725 /*
4726 * Isolate the file name.
4727 * Include the surrounding "" or <> if present.
4728 */
4729 for (p = incl_regmatch.endp[0]; !vim_isfilec(*p); p++)
4730 ;
4731 for (i = 0; vim_isfilec(p[i]); i++)
4732 ;
4733 if (i == 0)
4734 {
4735 /* Nothing found, use the rest of the line. */
4736 p = incl_regmatch.endp[0];
4737 i = (int)STRLEN(p);
4738 }
4739 else
4740 {
4741 if (p[-1] == '"' || p[-1] == '<')
4742 {
4743 --p;
4744 ++i;
4745 }
4746 if (p[i] == '"' || p[i] == '>')
4747 ++i;
4748 }
4749 save_char = p[i];
4750 p[i] = NUL;
4751 msg_outtrans_attr(p, hl_attr(HLF_D));
4752 p[i] = save_char;
4753 }
4754
4755 if (new_fname == NULL && action == ACTION_SHOW_ALL)
4756 {
4757 if (already_searched)
4758 MSG_PUTS(_(" (Already listed)"));
4759 else
4760 MSG_PUTS(_(" NOT FOUND"));
4761 }
4762 }
4763 out_flush(); /* output each line directly */
4764 }
4765
4766 if (new_fname != NULL)
4767 {
4768 /* Push the new file onto the file stack */
4769 if (depth + 1 == old_files)
4770 {
4771 bigger = (SearchedFile *)lalloc((long_u)(
4772 max_path_depth * 2 * sizeof(SearchedFile)), TRUE);
4773 if (bigger != NULL)
4774 {
4775 for (i = 0; i <= depth; i++)
4776 bigger[i] = files[i];
4777 for (i = depth + 1; i < old_files + max_path_depth; i++)
4778 {
4779 bigger[i].fp = NULL;
4780 bigger[i].name = NULL;
4781 bigger[i].lnum = 0;
4782 bigger[i].matched = FALSE;
4783 }
4784 for (i = old_files; i < max_path_depth; i++)
4785 bigger[i + max_path_depth] = files[i];
4786 old_files += max_path_depth;
4787 max_path_depth *= 2;
4788 vim_free(files);
4789 files = bigger;
4790 }
4791 }
4792 if ((files[depth + 1].fp = mch_fopen((char *)new_fname, "r"))
4793 == NULL)
4794 vim_free(new_fname);
4795 else
4796 {
4797 if (++depth == old_files)
4798 {
4799 /*
4800 * lalloc() for 'bigger' must have failed above. We
4801 * will forget one of our already visited files now.
4802 */
4803 vim_free(files[old_files].name);
4804 ++old_files;
4805 }
4806 files[depth].name = curr_fname = new_fname;
4807 files[depth].lnum = 0;
4808 files[depth].matched = FALSE;
4809 #ifdef FEAT_INS_EXPAND
4810 if (action == ACTION_EXPAND)
4811 {
4812 msg_hist_off = TRUE; /* reset in msg_trunc_attr() */
4813 vim_snprintf((char*)IObuff, IOSIZE,
4814 _("Scanning included file: %s"),
4815 (char *)new_fname);
4816 msg_trunc_attr(IObuff, TRUE, hl_attr(HLF_R));
4817 }
4818 else
4819 #endif
4820 if (p_verbose >= 5)
4821 {
4822 verbose_enter();
4823 smsg((char_u *)_("Searching included file %s"),
4824 (char *)new_fname);
4825 verbose_leave();
4826 }
4827
4828 }
4829 }
4830 }
4831 else
4832 {
4833 /*
4834 * Check if the line is a define (type == FIND_DEFINE)
4835 */
4836 p = line;
4837 search_line:
4838 define_matched = FALSE;
4839 if (def_regmatch.regprog != NULL
4840 && vim_regexec(&def_regmatch, line, (colnr_T)0))
4841 {
4842 /*
4843 * Pattern must be first identifier after 'define', so skip
4844 * to that position before checking for match of pattern. Also
4845 * don't let it match beyond the end of this identifier.
4846 */
4847 p = def_regmatch.endp[0];
4848 while (*p && !vim_iswordc(*p))
4849 p++;
4850 define_matched = TRUE;
4851 }
4852
4853 /*
4854 * Look for a match. Don't do this if we are looking for a
4855 * define and this line didn't match define_prog above.
4856 */
4857 if (def_regmatch.regprog == NULL || define_matched)
4858 {
4859 if (define_matched
4860 #ifdef FEAT_INS_EXPAND
4861 || (compl_cont_status & CONT_SOL)
4862 #endif
4863 )
4864 {
4865 /* compare the first "len" chars from "ptr" */
4866 startp = skipwhite(p);
4867 if (p_ic)
4868 matched = !MB_STRNICMP(startp, ptr, len);
4869 else
4870 matched = !STRNCMP(startp, ptr, len);
4871 if (matched && define_matched && whole
4872 && vim_iswordc(startp[len]))
4873 matched = FALSE;
4874 }
4875 else if (regmatch.regprog != NULL
4876 && vim_regexec(&regmatch, line, (colnr_T)(p - line)))
4877 {
4878 matched = TRUE;
4879 startp = regmatch.startp[0];
4880 /*
4881 * Check if the line is not a comment line (unless we are
4882 * looking for a define). A line starting with "# define"
4883 * is not considered to be a comment line.
4884 */
4885 if (!define_matched && skip_comments)
4886 {
4887 #ifdef FEAT_COMMENTS
4888 if ((*line != '#' ||
4889 STRNCMP(skipwhite(line + 1), "define", 6) != 0)
4890 && get_leader_len(line, NULL, FALSE))
4891 matched = FALSE;
4892
4893 /*
4894 * Also check for a "/ *" or "/ /" before the match.
4895 * Skips lines like "int backwards; / * normal index
4896 * * /" when looking for "normal".
4897 * Note: Doesn't skip "/ *" in comments.
4898 */
4899 p = skipwhite(line);
4900 if (matched
4901 || (p[0] == '/' && p[1] == '*') || p[0] == '*')
4902 #endif
4903 for (p = line; *p && p < startp; ++p)
4904 {
4905 if (matched
4906 && p[0] == '/'
4907 && (p[1] == '*' || p[1] == '/'))
4908 {
4909 matched = FALSE;
4910 /* After "//" all text is comment */
4911 if (p[1] == '/')
4912 break;
4913 ++p;
4914 }
4915 else if (!matched && p[0] == '*' && p[1] == '/')
4916 {
4917 /* Can find match after "* /". */
4918 matched = TRUE;
4919 ++p;
4920 }
4921 }
4922 }
4923 }
4924 }
4925 }
4926 if (matched)
4927 {
4928 #ifdef FEAT_INS_EXPAND
4929 if (action == ACTION_EXPAND)
4930 {
4931 int reuse = 0;
4932 int add_r;
4933 char_u *aux;
4934
4935 if (depth == -1 && lnum == curwin->w_cursor.lnum)
4936 break;
4937 found = TRUE;
4938 aux = p = startp;
4939 if (compl_cont_status & CONT_ADDING)
4940 {
4941 p += compl_length;
4942 if (vim_iswordp(p))
4943 goto exit_matched;
4944 p = find_word_start(p);
4945 }
4946 p = find_word_end(p);
4947 i = (int)(p - aux);
4948
4949 if ((compl_cont_status & CONT_ADDING) && i == compl_length)
4950 {
4951 /* IOSIZE > compl_length, so the STRNCPY works */
4952 STRNCPY(IObuff, aux, i);
4953
4954 /* Get the next line: when "depth" < 0 from the current
4955 * buffer, otherwise from the included file. Jump to
4956 * exit_matched when past the last line. */
4957 if (depth < 0)
4958 {
4959 if (lnum >= end_lnum)
4960 goto exit_matched;
4961 line = ml_get(++lnum);
4962 }
4963 else if (vim_fgets(line = file_line,
4964 LSIZE, files[depth].fp))
4965 goto exit_matched;
4966
4967 /* we read a line, set "already" to check this "line" later
4968 * if depth >= 0 we'll increase files[depth].lnum far
4969 * bellow -- Acevedo */
4970 already = aux = p = skipwhite(line);
4971 p = find_word_start(p);
4972 p = find_word_end(p);
4973 if (p > aux)
4974 {
4975 if (*aux != ')' && IObuff[i-1] != TAB)
4976 {
4977 if (IObuff[i-1] != ' ')
4978 IObuff[i++] = ' ';
4979 /* IObuf =~ "\(\k\|\i\).* ", thus i >= 2*/
4980 if (p_js
4981 && (IObuff[i-2] == '.'
4982 || (vim_strchr(p_cpo, CPO_JOINSP) == NULL
4983 && (IObuff[i-2] == '?'
4984 || IObuff[i-2] == '!'))))
4985 IObuff[i++] = ' ';
4986 }
4987 /* copy as much as possible of the new word */
4988 if (p - aux >= IOSIZE - i)
4989 p = aux + IOSIZE - i - 1;
4990 STRNCPY(IObuff + i, aux, p - aux);
4991 i += (int)(p - aux);
4992 reuse |= CONT_S_IPOS;
4993 }
4994 IObuff[i] = NUL;
4995 aux = IObuff;
4996
4997 if (i == compl_length)
4998 goto exit_matched;
4999 }
5000
5001 add_r = ins_compl_add_infercase(aux, i, p_ic,
5002 curr_fname == curbuf->b_fname ? NULL : curr_fname,
5003 dir, reuse);
5004 if (add_r == OK)
5005 /* if dir was BACKWARD then honor it just once */
5006 dir = FORWARD;
5007 else if (add_r == FAIL)
5008 break;
5009 }
5010 else
5011 #endif
5012 if (action == ACTION_SHOW_ALL)
5013 {
5014 found = TRUE;
5015 if (!did_show)
5016 gotocmdline(TRUE); /* cursor at status line */
5017 if (curr_fname != prev_fname)
5018 {
5019 if (did_show)
5020 msg_putchar('\n'); /* cursor below last one */
5021 if (!got_int) /* don't display if 'q' typed
5022 at "--more--" message */
5023 msg_home_replace_hl(curr_fname);
5024 prev_fname = curr_fname;
5025 }
5026 did_show = TRUE;
5027 if (!got_int)
5028 show_pat_in_path(line, type, TRUE, action,
5029 (depth == -1) ? NULL : files[depth].fp,
5030 (depth == -1) ? &lnum : &files[depth].lnum,
5031 match_count++);
5032
5033 /* Set matched flag for this file and all the ones that
5034 * include it */
5035 for (i = 0; i <= depth; ++i)
5036 files[i].matched = TRUE;
5037 }
5038 else if (--count <= 0)
5039 {
5040 found = TRUE;
5041 if (depth == -1 && lnum == curwin->w_cursor.lnum
5042 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
5043 && g_do_tagpreview == 0
5044 #endif
5045 )
5046 EMSG(_("E387: Match is on current line"));
5047 else if (action == ACTION_SHOW)
5048 {
5049 show_pat_in_path(line, type, did_show, action,
5050 (depth == -1) ? NULL : files[depth].fp,
5051 (depth == -1) ? &lnum : &files[depth].lnum, 1L);
5052 did_show = TRUE;
5053 }
5054 else
5055 {
5056 #ifdef FEAT_GUI
5057 need_mouse_correct = TRUE;
5058 #endif
5059 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
5060 /* ":psearch" uses the preview window */
5061 if (g_do_tagpreview != 0)
5062 {
5063 curwin_save = curwin;
5064 prepare_tagpreview(TRUE);
5065 }
5066 #endif
5067 if (action == ACTION_SPLIT)
5068 {
5069 #ifdef FEAT_WINDOWS
5070 if (win_split(0, 0) == FAIL)
5071 #endif
5072 break;
5073 #ifdef FEAT_SCROLLBIND
5074 curwin->w_p_scb = FALSE;
5075 #endif
5076 }
5077 if (depth == -1)
5078 {
5079 /* match in current file */
5080 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
5081 if (g_do_tagpreview != 0)
5082 {
5083 if (getfile(0, curwin_save->w_buffer->b_fname,
5084 NULL, TRUE, lnum, FALSE) > 0)
5085 break; /* failed to jump to file */
5086 }
5087 else
5088 #endif
5089 setpcmark();
5090 curwin->w_cursor.lnum = lnum;
5091 }
5092 else
5093 {
5094 if (getfile(0, files[depth].name, NULL, TRUE,
5095 files[depth].lnum, FALSE) > 0)
5096 break; /* failed to jump to file */
5097 /* autocommands may have changed the lnum, we don't
5098 * want that here */
5099 curwin->w_cursor.lnum = files[depth].lnum;
5100 }
5101 }
5102 if (action != ACTION_SHOW)
5103 {
5104 curwin->w_cursor.col = (colnr_T)(startp - line);
5105 curwin->w_set_curswant = TRUE;
5106 }
5107
5108 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
5109 if (g_do_tagpreview != 0
5110 && curwin != curwin_save && win_valid(curwin_save))
5111 {
5112 /* Return cursor to where we were */
5113 validate_cursor();
5114 redraw_later(VALID);
5115 win_enter(curwin_save, TRUE);
5116 }
5117 #endif
5118 break;
5119 }
5120 #ifdef FEAT_INS_EXPAND
5121 exit_matched:
5122 #endif
5123 matched = FALSE;
5124 /* look for other matches in the rest of the line if we
5125 * are not at the end of it already */
5126 if (def_regmatch.regprog == NULL
5127 #ifdef FEAT_INS_EXPAND
5128 && action == ACTION_EXPAND
5129 && !(compl_cont_status & CONT_SOL)
5130 #endif
5131 && *startp != NUL
5132 && *(p = startp + 1) != NUL)
5133 goto search_line;
5134 }
5135 line_breakcheck();
5136 #ifdef FEAT_INS_EXPAND
5137 if (action == ACTION_EXPAND)
5138 ins_compl_check_keys(30);
5139 if (got_int || compl_interrupted)
5140 #else
5141 if (got_int)
5142 #endif
5143 break;
5144
5145 /*
5146 * Read the next line. When reading an included file and encountering
5147 * end-of-file, close the file and continue in the file that included
5148 * it.
5149 */
5150 while (depth >= 0 && !already
5151 && vim_fgets(line = file_line, LSIZE, files[depth].fp))
5152 {
5153 fclose(files[depth].fp);
5154 --old_files;
5155 files[old_files].name = files[depth].name;
5156 files[old_files].matched = files[depth].matched;
5157 --depth;
5158 curr_fname = (depth == -1) ? curbuf->b_fname
5159 : files[depth].name;
5160 if (depth < depth_displayed)
5161 depth_displayed = depth;
5162 }
5163 if (depth >= 0) /* we could read the line */
5164 files[depth].lnum++;
5165 else if (!already)
5166 {
5167 if (++lnum > end_lnum)
5168 break;
5169 line = ml_get(lnum);
5170 }
5171 already = NULL;
5172 }
5173 /* End of big for (;;) loop. */
5174
5175 /* Close any files that are still open. */
5176 for (i = 0; i <= depth; i++)
5177 {
5178 fclose(files[i].fp);
5179 vim_free(files[i].name);
5180 }
5181 for (i = old_files; i < max_path_depth; i++)
5182 vim_free(files[i].name);
5183 vim_free(files);
5184
5185 if (type == CHECK_PATH)
5186 {
5187 if (!did_show)
5188 {
5189 if (action != ACTION_SHOW_ALL)
5190 MSG(_("All included files were found"));
5191 else
5192 MSG(_("No included files"));
5193 }
5194 }
5195 else if (!found
5196 #ifdef FEAT_INS_EXPAND
5197 && action != ACTION_EXPAND
5198 #endif
5199 )
5200 {
5201 #ifdef FEAT_INS_EXPAND
5202 if (got_int || compl_interrupted)
5203 #else
5204 if (got_int)
5205 #endif
5206 EMSG(_(e_interr));
5207 else if (type == FIND_DEFINE)
5208 EMSG(_("E388: Couldn't find definition"));
5209 else
5210 EMSG(_("E389: Couldn't find pattern"));
5211 }
5212 if (action == ACTION_SHOW || action == ACTION_SHOW_ALL)
5213 msg_end();
5214
5215 fpip_end:
5216 vim_free(file_line);
5217 vim_free(regmatch.regprog);
5218 vim_free(incl_regmatch.regprog);
5219 vim_free(def_regmatch.regprog);
5220
5221 #ifdef RISCOS
5222 /* Restore previous file munging state. */
5223 __riscosify_control = previous_munging;
5224 #endif
5225 }
5226
5227 static void
5228 show_pat_in_path(line, type, did_show, action, fp, lnum, count)
5229 char_u *line;
5230 int type;
5231 int did_show;
5232 int action;
5233 FILE *fp;
5234 linenr_T *lnum;
5235 long count;
5236 {
5237 char_u *p;
5238
5239 if (did_show)
5240 msg_putchar('\n'); /* cursor below last one */
5241 else if (!msg_silent)
5242 gotocmdline(TRUE); /* cursor at status line */
5243 if (got_int) /* 'q' typed at "--more--" message */
5244 return;
5245 for (;;)
5246 {
5247 p = line + STRLEN(line) - 1;
5248 if (fp != NULL)
5249 {
5250 /* We used fgets(), so get rid of newline at end */
5251 if (p >= line && *p == '\n')
5252 --p;
5253 if (p >= line && *p == '\r')
5254 --p;
5255 *(p + 1) = NUL;
5256 }
5257 if (action == ACTION_SHOW_ALL)
5258 {
5259 sprintf((char *)IObuff, "%3ld: ", count); /* show match nr */
5260 msg_puts(IObuff);
5261 sprintf((char *)IObuff, "%4ld", *lnum); /* show line nr */
5262 /* Highlight line numbers */
5263 msg_puts_attr(IObuff, hl_attr(HLF_N));
5264 MSG_PUTS(" ");
5265 }
5266 msg_prt_line(line, FALSE);
5267 out_flush(); /* show one line at a time */
5268
5269 /* Definition continues until line that doesn't end with '\' */
5270 if (got_int || type != FIND_DEFINE || p < line || *p != '\\')
5271 break;
5272
5273 if (fp != NULL)
5274 {
5275 if (vim_fgets(line, LSIZE, fp)) /* end of file */
5276 break;
5277 ++*lnum;
5278 }
5279 else
5280 {
5281 if (++*lnum > curbuf->b_ml.ml_line_count)
5282 break;
5283 line = ml_get(*lnum);
5284 }
5285 msg_putchar('\n');
5286 }
5287 }
5288 #endif
5289
5290 #ifdef FEAT_VIMINFO
5291 int
5292 read_viminfo_search_pattern(virp, force)
5293 vir_T *virp;
5294 int force;
5295 {
5296 char_u *lp;
5297 int idx = -1;
5298 int magic = FALSE;
5299 int no_scs = FALSE;
5300 int off_line = FALSE;
5301 int off_end = 0;
5302 long off = 0;
5303 int setlast = FALSE;
5304 #ifdef FEAT_SEARCH_EXTRA
5305 static int hlsearch_on = FALSE;
5306 #endif
5307 char_u *val;
5308
5309 /*
5310 * Old line types:
5311 * "/pat", "&pat": search/subst. pat
5312 * "~/pat", "~&pat": last used search/subst. pat
5313 * New line types:
5314 * "~h", "~H": hlsearch highlighting off/on
5315 * "~<magic><smartcase><line><end><off><last><which>pat"
5316 * <magic>: 'm' off, 'M' on
5317 * <smartcase>: 's' off, 'S' on
5318 * <line>: 'L' line offset, 'l' char offset
5319 * <end>: 'E' from end, 'e' from start
5320 * <off>: decimal, offset
5321 * <last>: '~' last used pattern
5322 * <which>: '/' search pat, '&' subst. pat
5323 */
5324 lp = virp->vir_line;
5325 if (lp[0] == '~' && (lp[1] == 'm' || lp[1] == 'M')) /* new line type */
5326 {
5327 if (lp[1] == 'M') /* magic on */
5328 magic = TRUE;
5329 if (lp[2] == 's')
5330 no_scs = TRUE;
5331 if (lp[3] == 'L')
5332 off_line = TRUE;
5333 if (lp[4] == 'E')
5334 off_end = SEARCH_END;
5335 lp += 5;
5336 off = getdigits(&lp);
5337 }
5338 if (lp[0] == '~') /* use this pattern for last-used pattern */
5339 {
5340 setlast = TRUE;
5341 lp++;
5342 }
5343 if (lp[0] == '/')
5344 idx = RE_SEARCH;
5345 else if (lp[0] == '&')
5346 idx = RE_SUBST;
5347 #ifdef FEAT_SEARCH_EXTRA
5348 else if (lp[0] == 'h') /* ~h: 'hlsearch' highlighting off */
5349 hlsearch_on = FALSE;
5350 else if (lp[0] == 'H') /* ~H: 'hlsearch' highlighting on */
5351 hlsearch_on = TRUE;
5352 #endif
5353 if (idx >= 0)
5354 {
5355 if (force || spats[idx].pat == NULL)
5356 {
5357 val = viminfo_readstring(virp, (int)(lp - virp->vir_line + 1),
5358 TRUE);
5359 if (val != NULL)
5360 {
5361 set_last_search_pat(val, idx, magic, setlast);
5362 vim_free(val);
5363 spats[idx].no_scs = no_scs;
5364 spats[idx].off.line = off_line;
5365 spats[idx].off.end = off_end;
5366 spats[idx].off.off = off;
5367 #ifdef FEAT_SEARCH_EXTRA
5368 if (setlast)
5369 no_hlsearch = !hlsearch_on;
5370 #endif
5371 }
5372 }
5373 }
5374 return viminfo_readline(virp);
5375 }
5376
5377 void
5378 write_viminfo_search_pattern(fp)
5379 FILE *fp;
5380 {
5381 if (get_viminfo_parameter('/') != 0)
5382 {
5383 #ifdef FEAT_SEARCH_EXTRA
5384 fprintf(fp, "\n# hlsearch on (H) or off (h):\n~%c",
5385 (no_hlsearch || find_viminfo_parameter('h') != NULL) ? 'h' : 'H');
5386 #endif
5387 wvsp_one(fp, RE_SEARCH, "", '/');
5388 wvsp_one(fp, RE_SUBST, _("Substitute "), '&');
5389 }
5390 }
5391
5392 static void
5393 wvsp_one(fp, idx, s, sc)
5394 FILE *fp; /* file to write to */
5395 int idx; /* spats[] index */
5396 char *s; /* search pat */
5397 int sc; /* dir char */
5398 {
5399 if (spats[idx].pat != NULL)
5400 {
5401 fprintf(fp, _("\n# Last %sSearch Pattern:\n~"), s);
5402 /* off.dir is not stored, it's reset to forward */
5403 fprintf(fp, "%c%c%c%c%ld%s%c",
5404 spats[idx].magic ? 'M' : 'm', /* magic */
5405 spats[idx].no_scs ? 's' : 'S', /* smartcase */
5406 spats[idx].off.line ? 'L' : 'l', /* line offset */
5407 spats[idx].off.end ? 'E' : 'e', /* offset from end */
5408 spats[idx].off.off, /* offset */
5409 last_idx == idx ? "~" : "", /* last used pat */
5410 sc);
5411 viminfo_writestring(fp, spats[idx].pat);
5412 }
5413 }
5414 #endif /* FEAT_VIMINFO */
Vim for the Mac