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Bram Moolenaar7528d1f2019-09-19 23:06:20 +02001/* vi:set ts=8 sts=4 sw=4 noet:
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/*
11 * drawline.c: Functions for drawing window lines on the screen.
12 * This is the middle level, drawscreen. is the higher level and screen.c the
13 * lower level.
14 */
15
16#include "vim.h"
17
18#ifdef FEAT_SYN_HL
19/*
20 * Advance **color_cols and return TRUE when there are columns to draw.
21 */
22 static int
23advance_color_col(int vcol, int **color_cols)
24{
25 while (**color_cols >= 0 && vcol > **color_cols)
26 ++*color_cols;
27 return (**color_cols >= 0);
28}
29#endif
30
31#ifdef FEAT_SYN_HL
32/*
33 * Used when 'cursorlineopt' contains "screenline": compute the margins between
34 * which the highlighting is used.
35 */
36 static void
37margin_columns_win(win_T *wp, int *left_col, int *right_col)
38{
39 // cache previous calculations depending on w_virtcol
40 static int saved_w_virtcol;
41 static win_T *prev_wp;
42 static int prev_left_col;
43 static int prev_right_col;
44 static int prev_col_off;
45
46 int cur_col_off = win_col_off(wp);
47 int width1;
48 int width2;
49
50 if (saved_w_virtcol == wp->w_virtcol
51 && prev_wp == wp && prev_col_off == cur_col_off)
52 {
53 *right_col = prev_right_col;
54 *left_col = prev_left_col;
55 return;
56 }
57
58 width1 = wp->w_width - cur_col_off;
59 width2 = width1 + win_col_off2(wp);
60
61 *left_col = 0;
62 *right_col = width1;
63
64 if (wp->w_virtcol >= (colnr_T)width1)
65 *right_col = width1 + ((wp->w_virtcol - width1) / width2 + 1) * width2;
66 if (wp->w_virtcol >= (colnr_T)width1 && width2 > 0)
67 *left_col = (wp->w_virtcol - width1) / width2 * width2 + width1;
68
69 // cache values
70 prev_left_col = *left_col;
71 prev_right_col = *right_col;
72 prev_wp = wp;
73 saved_w_virtcol = wp->w_virtcol;
74 prev_col_off = cur_col_off;
75}
76#endif
77
78#ifdef FEAT_SIGNS
79/*
80 * Get information needed to display the sign in line 'lnum' in window 'wp'.
81 * If 'nrcol' is TRUE, the sign is going to be displayed in the number column.
82 * Otherwise the sign is going to be displayed in the sign column.
83 */
84 static void
85get_sign_display_info(
86 int nrcol,
87 win_T *wp,
88 linenr_T lnum UNUSED,
89 sign_attrs_T *sattr,
90 int wcr_attr,
91 int row,
92 int startrow,
93 int filler_lines UNUSED,
94 int filler_todo UNUSED,
95 int *c_extrap,
96 int *c_finalp,
97 char_u *extra,
98 char_u **pp_extra,
99 int *n_extrap,
100 int *char_attrp)
101{
102 int text_sign;
103# ifdef FEAT_SIGN_ICONS
104 int icon_sign;
105# endif
106
107 // Draw two cells with the sign value or blank.
108 *c_extrap = ' ';
109 *c_finalp = NUL;
110 if (nrcol)
111 *n_extrap = number_width(wp) + 1;
112 else
113 {
114 *char_attrp = hl_combine_attr(wcr_attr, HL_ATTR(HLF_SC));
115 *n_extrap = 2;
116 }
117
118 if (row == startrow
119#ifdef FEAT_DIFF
120 + filler_lines && filler_todo <= 0
121#endif
122 )
123 {
Bram Moolenaar6656c2e2019-10-24 15:00:04 +0200124 text_sign = (sattr->sat_text != NULL) ? sattr->sat_typenr : 0;
Bram Moolenaar7528d1f2019-09-19 23:06:20 +0200125# ifdef FEAT_SIGN_ICONS
Bram Moolenaar6656c2e2019-10-24 15:00:04 +0200126 icon_sign = (sattr->sat_icon != NULL) ? sattr->sat_typenr : 0;
Bram Moolenaar7528d1f2019-09-19 23:06:20 +0200127 if (gui.in_use && icon_sign != 0)
128 {
129 // Use the image in this position.
130 if (nrcol)
131 {
132 *c_extrap = NUL;
133 sprintf((char *)extra, "%-*c ", number_width(wp), SIGN_BYTE);
134 *pp_extra = extra;
135 *n_extrap = (int)STRLEN(*pp_extra);
136 }
137 else
138 *c_extrap = SIGN_BYTE;
139# ifdef FEAT_NETBEANS_INTG
140 if (netbeans_active() && (buf_signcount(wp->w_buffer, lnum) > 1))
141 {
142 if (nrcol)
143 {
144 *c_extrap = NUL;
145 sprintf((char *)extra, "%-*c ", number_width(wp),
146 MULTISIGN_BYTE);
147 *pp_extra = extra;
148 *n_extrap = (int)STRLEN(*pp_extra);
149 }
150 else
151 *c_extrap = MULTISIGN_BYTE;
152 }
153# endif
154 *c_finalp = NUL;
155 *char_attrp = icon_sign;
156 }
157 else
158# endif
159 if (text_sign != 0)
160 {
Bram Moolenaar6656c2e2019-10-24 15:00:04 +0200161 *pp_extra = sattr->sat_text;
Bram Moolenaar7528d1f2019-09-19 23:06:20 +0200162 if (*pp_extra != NULL)
163 {
164 if (nrcol)
165 {
166 int n, width = number_width(wp) - 2;
167
168 for (n = 0; n < width; n++)
169 extra[n] = ' ';
170 extra[n] = 0;
171 STRCAT(extra, *pp_extra);
172 STRCAT(extra, " ");
173 *pp_extra = extra;
174 }
175 *c_extrap = NUL;
176 *c_finalp = NUL;
177 *n_extrap = (int)STRLEN(*pp_extra);
178 }
Bram Moolenaar6656c2e2019-10-24 15:00:04 +0200179 *char_attrp = sattr->sat_texthl;
Bram Moolenaar7528d1f2019-09-19 23:06:20 +0200180 }
181 }
182}
183#endif
184
Bram Moolenaar05ad5ff2019-11-30 22:48:27 +0100185#ifdef FEAT_PROP_POPUP
Bram Moolenaar7528d1f2019-09-19 23:06:20 +0200186static textprop_T *current_text_props = NULL;
187static buf_T *current_buf = NULL;
188
189 static int
190text_prop_compare(const void *s1, const void *s2)
191{
192 int idx1, idx2;
193 proptype_T *pt1, *pt2;
194 colnr_T col1, col2;
195
196 idx1 = *(int *)s1;
197 idx2 = *(int *)s2;
198 pt1 = text_prop_type_by_id(current_buf, current_text_props[idx1].tp_type);
199 pt2 = text_prop_type_by_id(current_buf, current_text_props[idx2].tp_type);
200 if (pt1 == pt2)
201 return 0;
202 if (pt1 == NULL)
203 return -1;
204 if (pt2 == NULL)
205 return 1;
206 if (pt1->pt_priority != pt2->pt_priority)
207 return pt1->pt_priority > pt2->pt_priority ? 1 : -1;
208 col1 = current_text_props[idx1].tp_col;
209 col2 = current_text_props[idx2].tp_col;
210 return col1 == col2 ? 0 : col1 > col2 ? 1 : -1;
211}
212#endif
213
214/*
215 * Display line "lnum" of window 'wp' on the screen.
216 * Start at row "startrow", stop when "endrow" is reached.
217 * wp->w_virtcol needs to be valid.
218 *
219 * Return the number of last row the line occupies.
220 */
221 int
222win_line(
223 win_T *wp,
224 linenr_T lnum,
225 int startrow,
226 int endrow,
227 int nochange UNUSED, // not updating for changed text
228 int number_only) // only update the number column
229{
230 int col = 0; // visual column on screen
231 unsigned off; // offset in ScreenLines/ScreenAttrs
232 int c = 0; // init for GCC
233 long vcol = 0; // virtual column (for tabs)
234#ifdef FEAT_LINEBREAK
235 long vcol_sbr = -1; // virtual column after showbreak
236#endif
237 long vcol_prev = -1; // "vcol" of previous character
238 char_u *line; // current line
239 char_u *ptr; // current position in "line"
240 int row; // row in the window, excl w_winrow
241 int screen_row; // row on the screen, incl w_winrow
242
243 char_u extra[21]; // "%ld " and 'fdc' must fit in here
244 int n_extra = 0; // number of extra chars
245 char_u *p_extra = NULL; // string of extra chars, plus NUL
246 char_u *p_extra_free = NULL; // p_extra needs to be freed
247 int c_extra = NUL; // extra chars, all the same
248 int c_final = NUL; // final char, mandatory if set
249 int extra_attr = 0; // attributes when n_extra != 0
250 static char_u *at_end_str = (char_u *)""; // used for p_extra when
251 // displaying lcs_eol at end-of-line
252 int lcs_eol_one = lcs_eol; // lcs_eol until it's been used
253 int lcs_prec_todo = lcs_prec; // lcs_prec until it's been used
254
255 // saved "extra" items for when draw_state becomes WL_LINE (again)
256 int saved_n_extra = 0;
257 char_u *saved_p_extra = NULL;
258 int saved_c_extra = 0;
259 int saved_c_final = 0;
260 int saved_char_attr = 0;
261
262 int n_attr = 0; // chars with special attr
263 int saved_attr2 = 0; // char_attr saved for n_attr
264 int n_attr3 = 0; // chars with overruling special attr
265 int saved_attr3 = 0; // char_attr saved for n_attr3
266
267 int n_skip = 0; // nr of chars to skip for 'nowrap'
268
269 int fromcol = -10; // start of inverting
270 int tocol = MAXCOL; // end of inverting
271 int fromcol_prev = -2; // start of inverting after cursor
272 int noinvcur = FALSE; // don't invert the cursor
Bram Moolenaar7528d1f2019-09-19 23:06:20 +0200273 int lnum_in_visual_area = FALSE;
274 pos_T pos;
275 long v;
276
277 int char_attr = 0; // attributes for next character
278 int attr_pri = FALSE; // char_attr has priority
279 int area_highlighting = FALSE; // Visual or incsearch highlighting
280 // in this line
281 int vi_attr = 0; // attributes for Visual and incsearch
282 // highlighting
283 int wcr_attr = 0; // attributes from 'wincolor'
284 int win_attr = 0; // background for whole window, except
285 // margins and "~" lines.
286 int area_attr = 0; // attributes desired by highlighting
287 int search_attr = 0; // attributes desired by 'hlsearch'
288#ifdef FEAT_SYN_HL
289 int vcol_save_attr = 0; // saved attr for 'cursorcolumn'
290 int syntax_attr = 0; // attributes desired by syntax
Bram Moolenaar9115c612019-10-16 16:57:06 +0200291 int prev_syntax_col = -1; // column of prev_syntax_attr
292 int prev_syntax_attr = 0; // syntax_attr at prev_syntax_col
Bram Moolenaar7528d1f2019-09-19 23:06:20 +0200293 int has_syntax = FALSE; // this buffer has syntax highl.
294 int save_did_emsg;
295 int draw_color_col = FALSE; // highlight colorcolumn
296 int *color_cols = NULL; // pointer to according columns array
297#endif
298 int eol_hl_off = 0; // 1 if highlighted char after EOL
Bram Moolenaar05ad5ff2019-11-30 22:48:27 +0100299#ifdef FEAT_PROP_POPUP
Bram Moolenaar7528d1f2019-09-19 23:06:20 +0200300 int text_prop_count;
301 int text_prop_next = 0; // next text property to use
302 textprop_T *text_props = NULL;
303 int *text_prop_idxs = NULL;
304 int text_props_active = 0;
305 proptype_T *text_prop_type = NULL;
306 int text_prop_attr = 0;
307 int text_prop_combine = FALSE;
308#endif
309#ifdef FEAT_SPELL
310 int has_spell = FALSE; // this buffer has spell checking
Bram Moolenaar34390282019-10-16 14:38:26 +0200311 int can_spell;
Bram Moolenaar7528d1f2019-09-19 23:06:20 +0200312# define SPWORDLEN 150
313 char_u nextline[SPWORDLEN * 2];// text with start of the next line
314 int nextlinecol = 0; // column where nextline[] starts
315 int nextline_idx = 0; // index in nextline[] where next line
316 // starts
317 int spell_attr = 0; // attributes desired by spelling
318 int word_end = 0; // last byte with same spell_attr
319 static linenr_T checked_lnum = 0; // line number for "checked_col"
320 static int checked_col = 0; // column in "checked_lnum" up to which
321 // there are no spell errors
322 static int cap_col = -1; // column to check for Cap word
323 static linenr_T capcol_lnum = 0; // line number where "cap_col" used
324 int cur_checked_col = 0; // checked column for current line
325#endif
326 int extra_check = 0; // has extra highlighting
327 int multi_attr = 0; // attributes desired by multibyte
328 int mb_l = 1; // multi-byte byte length
329 int mb_c = 0; // decoded multi-byte character
330 int mb_utf8 = FALSE; // screen char is UTF-8 char
331 int u8cc[MAX_MCO]; // composing UTF-8 chars
332#if defined(FEAT_DIFF) || defined(FEAT_SIGNS)
333 int filler_lines = 0; // nr of filler lines to be drawn
334 int filler_todo = 0; // nr of filler lines still to do + 1
335#endif
336#ifdef FEAT_DIFF
337 hlf_T diff_hlf = (hlf_T)0; // type of diff highlighting
338 int change_start = MAXCOL; // first col of changed area
339 int change_end = -1; // last col of changed area
340#endif
341 colnr_T trailcol = MAXCOL; // start of trailing spaces
342#ifdef FEAT_LINEBREAK
343 int need_showbreak = FALSE; // overlong line, skipping first x
344 // chars
345#endif
346#if defined(FEAT_SIGNS) || defined(FEAT_QUICKFIX) \
347 || defined(FEAT_SYN_HL) || defined(FEAT_DIFF)
348# define LINE_ATTR
349 int line_attr = 0; // attribute for the whole line
350 int line_attr_save;
351#endif
352#ifdef FEAT_SIGNS
353 int sign_present = FALSE;
354 sign_attrs_T sattr;
355#endif
356#ifdef FEAT_ARABIC
357 int prev_c = 0; // previous Arabic character
358 int prev_c1 = 0; // first composing char for prev_c
359#endif
360#if defined(LINE_ATTR)
361 int did_line_attr = 0;
362#endif
363#ifdef FEAT_TERMINAL
364 int get_term_attr = FALSE;
365#endif
366#ifdef FEAT_SYN_HL
367 int cul_attr = 0; // set when 'cursorline' active
368
369 // 'cursorlineopt' has "screenline" and cursor is in this line
370 int cul_screenline = FALSE;
371
372 // margin columns for the screen line, needed for when 'cursorlineopt'
373 // contains "screenline"
374 int left_curline_col = 0;
375 int right_curline_col = 0;
376#endif
377
378 // draw_state: items that are drawn in sequence:
379#define WL_START 0 // nothing done yet
380#ifdef FEAT_CMDWIN
381# define WL_CMDLINE WL_START + 1 // cmdline window column
382#else
383# define WL_CMDLINE WL_START
384#endif
385#ifdef FEAT_FOLDING
386# define WL_FOLD WL_CMDLINE + 1 // 'foldcolumn'
387#else
388# define WL_FOLD WL_CMDLINE
389#endif
390#ifdef FEAT_SIGNS
391# define WL_SIGN WL_FOLD + 1 // column for signs
392#else
393# define WL_SIGN WL_FOLD // column for signs
394#endif
395#define WL_NR WL_SIGN + 1 // line number
396#ifdef FEAT_LINEBREAK
397# define WL_BRI WL_NR + 1 // 'breakindent'
398#else
399# define WL_BRI WL_NR
400#endif
401#if defined(FEAT_LINEBREAK) || defined(FEAT_DIFF)
402# define WL_SBR WL_BRI + 1 // 'showbreak' or 'diff'
403#else
404# define WL_SBR WL_BRI
405#endif
406#define WL_LINE WL_SBR + 1 // text in the line
407 int draw_state = WL_START; // what to draw next
408#if defined(FEAT_XIM) && defined(FEAT_GUI_GTK)
409 int feedback_col = 0;
410 int feedback_old_attr = -1;
411#endif
412 int screen_line_flags = 0;
413
414#if defined(FEAT_CONCEAL) || defined(FEAT_SEARCH_EXTRA)
415 int match_conc = 0; // cchar for match functions
416#endif
417#ifdef FEAT_CONCEAL
418 int syntax_flags = 0;
419 int syntax_seqnr = 0;
420 int prev_syntax_id = 0;
421 int conceal_attr = HL_ATTR(HLF_CONCEAL);
422 int is_concealing = FALSE;
423 int boguscols = 0; // nonexistent columns added to force
424 // wrapping
425 int vcol_off = 0; // offset for concealed characters
426 int did_wcol = FALSE;
427 int old_boguscols = 0;
428# define VCOL_HLC (vcol - vcol_off)
429# define FIX_FOR_BOGUSCOLS \
430 { \
431 n_extra += vcol_off; \
432 vcol -= vcol_off; \
433 vcol_off = 0; \
434 col -= boguscols; \
435 old_boguscols = boguscols; \
436 boguscols = 0; \
437 }
438#else
439# define VCOL_HLC (vcol)
440#endif
441
442 if (startrow > endrow) // past the end already!
443 return startrow;
444
445 row = startrow;
446 screen_row = row + W_WINROW(wp);
447
448 if (!number_only)
449 {
450 // To speed up the loop below, set extra_check when there is linebreak,
451 // trailing white space and/or syntax processing to be done.
452#ifdef FEAT_LINEBREAK
453 extra_check = wp->w_p_lbr;
454#endif
455#ifdef FEAT_SYN_HL
456 if (syntax_present(wp) && !wp->w_s->b_syn_error
457# ifdef SYN_TIME_LIMIT
458 && !wp->w_s->b_syn_slow
459# endif
460 )
461 {
462 // Prepare for syntax highlighting in this line. When there is an
463 // error, stop syntax highlighting.
464 save_did_emsg = did_emsg;
465 did_emsg = FALSE;
466 syntax_start(wp, lnum);
467 if (did_emsg)
468 wp->w_s->b_syn_error = TRUE;
469 else
470 {
471 did_emsg = save_did_emsg;
472#ifdef SYN_TIME_LIMIT
473 if (!wp->w_s->b_syn_slow)
474#endif
475 {
476 has_syntax = TRUE;
477 extra_check = TRUE;
478 }
479 }
480 }
481
482 // Check for columns to display for 'colorcolumn'.
483 color_cols = wp->w_p_cc_cols;
484 if (color_cols != NULL)
485 draw_color_col = advance_color_col(VCOL_HLC, &color_cols);
486#endif
487
488#ifdef FEAT_TERMINAL
489 if (term_show_buffer(wp->w_buffer))
490 {
491 extra_check = TRUE;
492 get_term_attr = TRUE;
Bram Moolenaar219c7d02020-02-01 21:57:29 +0100493 win_attr = term_get_attr(wp, lnum, -1);
Bram Moolenaar7528d1f2019-09-19 23:06:20 +0200494 }
495#endif
496
497#ifdef FEAT_SPELL
498 if (wp->w_p_spell
499 && *wp->w_s->b_p_spl != NUL
500 && wp->w_s->b_langp.ga_len > 0
501 && *(char **)(wp->w_s->b_langp.ga_data) != NULL)
502 {
503 // Prepare for spell checking.
504 has_spell = TRUE;
505 extra_check = TRUE;
506
507 // Get the start of the next line, so that words that wrap to the
508 // next line are found too: "et<line-break>al.".
509 // Trick: skip a few chars for C/shell/Vim comments
510 nextline[SPWORDLEN] = NUL;
511 if (lnum < wp->w_buffer->b_ml.ml_line_count)
512 {
513 line = ml_get_buf(wp->w_buffer, lnum + 1, FALSE);
514 spell_cat_line(nextline + SPWORDLEN, line, SPWORDLEN);
515 }
516
517 // When a word wrapped from the previous line the start of the
518 // current line is valid.
519 if (lnum == checked_lnum)
520 cur_checked_col = checked_col;
521 checked_lnum = 0;
522
523 // When there was a sentence end in the previous line may require a
524 // word starting with capital in this line. In line 1 always check
525 // the first word.
526 if (lnum != capcol_lnum)
527 cap_col = -1;
528 if (lnum == 1)
529 cap_col = 0;
530 capcol_lnum = 0;
531 }
532#endif
533
534 // handle Visual active in this window
535 if (VIsual_active && wp->w_buffer == curwin->w_buffer)
536 {
Bram Moolenaar14285cb2020-03-27 20:58:37 +0100537 pos_T *top, *bot;
538
Bram Moolenaar7528d1f2019-09-19 23:06:20 +0200539 if (LTOREQ_POS(curwin->w_cursor, VIsual))
540 {
541 // Visual is after curwin->w_cursor
542 top = &curwin->w_cursor;
543 bot = &VIsual;
544 }
545 else
546 {
547 // Visual is before curwin->w_cursor
548 top = &VIsual;
549 bot = &curwin->w_cursor;
550 }
551 lnum_in_visual_area = (lnum >= top->lnum && lnum <= bot->lnum);
552 if (VIsual_mode == Ctrl_V)
553 {
554 // block mode
555 if (lnum_in_visual_area)
556 {
557 fromcol = wp->w_old_cursor_fcol;
558 tocol = wp->w_old_cursor_lcol;
559 }
560 }
561 else
562 {
563 // non-block mode
564 if (lnum > top->lnum && lnum <= bot->lnum)
565 fromcol = 0;
566 else if (lnum == top->lnum)
567 {
568 if (VIsual_mode == 'V') // linewise
569 fromcol = 0;
570 else
571 {
572 getvvcol(wp, top, (colnr_T *)&fromcol, NULL, NULL);
573 if (gchar_pos(top) == NUL)
574 tocol = fromcol + 1;
575 }
576 }
577 if (VIsual_mode != 'V' && lnum == bot->lnum)
578 {
579 if (*p_sel == 'e' && bot->col == 0 && bot->coladd == 0)
580 {
581 fromcol = -10;
582 tocol = MAXCOL;
583 }
584 else if (bot->col == MAXCOL)
585 tocol = MAXCOL;
586 else
587 {
588 pos = *bot;
589 if (*p_sel == 'e')
590 getvvcol(wp, &pos, (colnr_T *)&tocol, NULL, NULL);
591 else
592 {
593 getvvcol(wp, &pos, NULL, NULL, (colnr_T *)&tocol);
594 ++tocol;
595 }
596 }
597 }
598 }
599
600 // Check if the character under the cursor should not be inverted
Bram Moolenaar6656c2e2019-10-24 15:00:04 +0200601 if (!highlight_match && lnum == curwin->w_cursor.lnum
602 && wp == curwin
Bram Moolenaar7528d1f2019-09-19 23:06:20 +0200603#ifdef FEAT_GUI
604 && !gui.in_use
605#endif
606 )
607 noinvcur = TRUE;
608
609 // if inverting in this line set area_highlighting
610 if (fromcol >= 0)
611 {
612 area_highlighting = TRUE;
613 vi_attr = HL_ATTR(HLF_V);
614#if defined(FEAT_CLIPBOARD) && defined(FEAT_X11)
615 if ((clip_star.available && !clip_star.owned
616 && clip_isautosel_star())
617 || (clip_plus.available && !clip_plus.owned
618 && clip_isautosel_plus()))
619 vi_attr = HL_ATTR(HLF_VNC);
620#endif
621 }
622 }
623
624 // handle 'incsearch' and ":s///c" highlighting
625 else if (highlight_match
626 && wp == curwin
627 && lnum >= curwin->w_cursor.lnum
628 && lnum <= curwin->w_cursor.lnum + search_match_lines)
629 {
630 if (lnum == curwin->w_cursor.lnum)
631 getvcol(curwin, &(curwin->w_cursor),
632 (colnr_T *)&fromcol, NULL, NULL);
633 else
634 fromcol = 0;
635 if (lnum == curwin->w_cursor.lnum + search_match_lines)
636 {
637 pos.lnum = lnum;
638 pos.col = search_match_endcol;
639 getvcol(curwin, &pos, (colnr_T *)&tocol, NULL, NULL);
640 }
641 else
642 tocol = MAXCOL;
643 // do at least one character; happens when past end of line
644 if (fromcol == tocol)
645 tocol = fromcol + 1;
646 area_highlighting = TRUE;
647 vi_attr = HL_ATTR(HLF_I);
648 }
649 }
650
651#ifdef FEAT_DIFF
652 filler_lines = diff_check(wp, lnum);
653 if (filler_lines < 0)
654 {
655 if (filler_lines == -1)
656 {
657 if (diff_find_change(wp, lnum, &change_start, &change_end))
658 diff_hlf = HLF_ADD; // added line
659 else if (change_start == 0)
660 diff_hlf = HLF_TXD; // changed text
661 else
662 diff_hlf = HLF_CHD; // changed line
663 }
664 else
665 diff_hlf = HLF_ADD; // added line
666 filler_lines = 0;
667 area_highlighting = TRUE;
668 }
669 if (lnum == wp->w_topline)
670 filler_lines = wp->w_topfill;
671 filler_todo = filler_lines;
672#endif
673
674#ifdef FEAT_SIGNS
Bram Moolenaar4eb7dae2019-11-12 22:33:45 +0100675 sign_present = buf_get_signattrs(wp, lnum, &sattr);
Bram Moolenaar7528d1f2019-09-19 23:06:20 +0200676#endif
677
678#ifdef LINE_ATTR
679# ifdef FEAT_SIGNS
680 // If this line has a sign with line highlighting set line_attr.
681 if (sign_present)
Bram Moolenaar6656c2e2019-10-24 15:00:04 +0200682 line_attr = sattr.sat_linehl;
Bram Moolenaar7528d1f2019-09-19 23:06:20 +0200683# endif
684# if defined(FEAT_QUICKFIX)
685 // Highlight the current line in the quickfix window.
686 if (bt_quickfix(wp->w_buffer) && qf_current_entry(wp) == lnum)
687 line_attr = HL_ATTR(HLF_QFL);
688# endif
689 if (line_attr != 0)
690 area_highlighting = TRUE;
691#endif
692
693 line = ml_get_buf(wp->w_buffer, lnum, FALSE);
694 ptr = line;
695
696#ifdef FEAT_SPELL
697 if (has_spell && !number_only)
698 {
699 // For checking first word with a capital skip white space.
700 if (cap_col == 0)
701 cap_col = getwhitecols(line);
702
703 // To be able to spell-check over line boundaries copy the end of the
704 // current line into nextline[]. Above the start of the next line was
705 // copied to nextline[SPWORDLEN].
706 if (nextline[SPWORDLEN] == NUL)
707 {
708 // No next line or it is empty.
709 nextlinecol = MAXCOL;
710 nextline_idx = 0;
711 }
712 else
713 {
714 v = (long)STRLEN(line);
715 if (v < SPWORDLEN)
716 {
717 // Short line, use it completely and append the start of the
718 // next line.
719 nextlinecol = 0;
720 mch_memmove(nextline, line, (size_t)v);
721 STRMOVE(nextline + v, nextline + SPWORDLEN);
722 nextline_idx = v + 1;
723 }
724 else
725 {
726 // Long line, use only the last SPWORDLEN bytes.
727 nextlinecol = v - SPWORDLEN;
728 mch_memmove(nextline, line + nextlinecol, SPWORDLEN);
729 nextline_idx = SPWORDLEN + 1;
730 }
731 }
732 }
733#endif
734
735 if (wp->w_p_list)
736 {
737 if (lcs_space || lcs_trail || lcs_nbsp)
738 extra_check = TRUE;
739 // find start of trailing whitespace
740 if (lcs_trail)
741 {
742 trailcol = (colnr_T)STRLEN(ptr);
743 while (trailcol > (colnr_T)0 && VIM_ISWHITE(ptr[trailcol - 1]))
744 --trailcol;
745 trailcol += (colnr_T) (ptr - line);
746 }
747 }
748
749 wcr_attr = get_wcr_attr(wp);
750 if (wcr_attr != 0)
751 {
752 win_attr = wcr_attr;
753 area_highlighting = TRUE;
754 }
Bram Moolenaar34390282019-10-16 14:38:26 +0200755
Bram Moolenaar05ad5ff2019-11-30 22:48:27 +0100756#ifdef FEAT_PROP_POPUP
Bram Moolenaar7528d1f2019-09-19 23:06:20 +0200757 if (WIN_IS_POPUP(wp))
758 screen_line_flags |= SLF_POPUP;
759#endif
760
761 // 'nowrap' or 'wrap' and a single line that doesn't fit: Advance to the
762 // first character to be displayed.
763 if (wp->w_p_wrap)
764 v = wp->w_skipcol;
765 else
766 v = wp->w_leftcol;
767 if (v > 0 && !number_only)
768 {
769 char_u *prev_ptr = ptr;
770
771 while (vcol < v && *ptr != NUL)
772 {
773 c = win_lbr_chartabsize(wp, line, ptr, (colnr_T)vcol, NULL);
774 vcol += c;
775 prev_ptr = ptr;
776 MB_PTR_ADV(ptr);
777 }
778
779 // When:
780 // - 'cuc' is set, or
781 // - 'colorcolumn' is set, or
782 // - 'virtualedit' is set, or
783 // - the visual mode is active,
784 // the end of the line may be before the start of the displayed part.
785 if (vcol < v && (
786#ifdef FEAT_SYN_HL
787 wp->w_p_cuc || draw_color_col ||
788#endif
789 virtual_active() ||
790 (VIsual_active && wp->w_buffer == curwin->w_buffer)))
791 vcol = v;
792
793 // Handle a character that's not completely on the screen: Put ptr at
794 // that character but skip the first few screen characters.
795 if (vcol > v)
796 {
797 vcol -= c;
798 ptr = prev_ptr;
799 // If the character fits on the screen, don't need to skip it.
800 // Except for a TAB.
801 if (( (*mb_ptr2cells)(ptr) >= c || *ptr == TAB) && col == 0)
802 n_skip = v - vcol;
803 }
804
805 // Adjust for when the inverted text is before the screen,
806 // and when the start of the inverted text is before the screen.
807 if (tocol <= vcol)
808 fromcol = 0;
809 else if (fromcol >= 0 && fromcol < vcol)
810 fromcol = vcol;
811
812#ifdef FEAT_LINEBREAK
813 // When w_skipcol is non-zero, first line needs 'showbreak'
814 if (wp->w_p_wrap)
815 need_showbreak = TRUE;
816#endif
817#ifdef FEAT_SPELL
818 // When spell checking a word we need to figure out the start of the
819 // word and if it's badly spelled or not.
820 if (has_spell)
821 {
822 int len;
823 colnr_T linecol = (colnr_T)(ptr - line);
824 hlf_T spell_hlf = HLF_COUNT;
825
826 pos = wp->w_cursor;
827 wp->w_cursor.lnum = lnum;
828 wp->w_cursor.col = linecol;
829 len = spell_move_to(wp, FORWARD, TRUE, TRUE, &spell_hlf);
830
831 // spell_move_to() may call ml_get() and make "line" invalid
832 line = ml_get_buf(wp->w_buffer, lnum, FALSE);
833 ptr = line + linecol;
834
835 if (len == 0 || (int)wp->w_cursor.col > ptr - line)
836 {
837 // no bad word found at line start, don't check until end of a
838 // word
839 spell_hlf = HLF_COUNT;
840 word_end = (int)(spell_to_word_end(ptr, wp) - line + 1);
841 }
842 else
843 {
844 // bad word found, use attributes until end of word
845 word_end = wp->w_cursor.col + len + 1;
846
847 // Turn index into actual attributes.
848 if (spell_hlf != HLF_COUNT)
849 spell_attr = highlight_attr[spell_hlf];
850 }
851 wp->w_cursor = pos;
852
853# ifdef FEAT_SYN_HL
854 // Need to restart syntax highlighting for this line.
855 if (has_syntax)
856 syntax_start(wp, lnum);
857# endif
858 }
859#endif
860 }
861
862 // Correct highlighting for cursor that can't be disabled.
863 // Avoids having to check this for each character.
864 if (fromcol >= 0)
865 {
866 if (noinvcur)
867 {
868 if ((colnr_T)fromcol == wp->w_virtcol)
869 {
870 // highlighting starts at cursor, let it start just after the
871 // cursor
872 fromcol_prev = fromcol;
873 fromcol = -1;
874 }
875 else if ((colnr_T)fromcol < wp->w_virtcol)
876 // restart highlighting after the cursor
877 fromcol_prev = wp->w_virtcol;
878 }
879 if (fromcol >= tocol)
880 fromcol = -1;
881 }
882
883#ifdef FEAT_SEARCH_EXTRA
884 if (!number_only)
885 {
886 v = (long)(ptr - line);
887 area_highlighting |= prepare_search_hl_line(wp, lnum, (colnr_T)v,
888 &line, &screen_search_hl,
889 &search_attr);
890 ptr = line + v; // "line" may have been updated
891 }
892#endif
893
894#ifdef FEAT_SYN_HL
895 // Cursor line highlighting for 'cursorline' in the current window.
896 if (wp->w_p_cul && lnum == wp->w_cursor.lnum)
897 {
898 // Do not show the cursor line in the text when Visual mode is active,
899 // because it's not clear what is selected then. Do update
900 // w_last_cursorline.
901 if (!(wp == curwin && VIsual_active)
902 && wp->w_p_culopt_flags != CULOPT_NBR)
903 {
904 cul_screenline = (wp->w_p_wrap
905 && (wp->w_p_culopt_flags & CULOPT_SCRLINE));
906
907 // Only set line_attr here when "screenline" is not present in
908 // 'cursorlineopt'. Otherwise it's done later.
909 if (!cul_screenline)
910 {
911 cul_attr = HL_ATTR(HLF_CUL);
912 line_attr = cul_attr;
913 wp->w_last_cursorline = wp->w_cursor.lnum;
914 }
915 else
916 {
917 line_attr_save = line_attr;
918 wp->w_last_cursorline = 0;
919 margin_columns_win(wp, &left_curline_col, &right_curline_col);
920 }
921 area_highlighting = TRUE;
922 }
923 else
924 wp->w_last_cursorline = wp->w_cursor.lnum;
925 }
926#endif
927
Bram Moolenaar05ad5ff2019-11-30 22:48:27 +0100928#ifdef FEAT_PROP_POPUP
Bram Moolenaar7528d1f2019-09-19 23:06:20 +0200929 {
930 char_u *prop_start;
931
932 text_prop_count = get_text_props(wp->w_buffer, lnum,
933 &prop_start, FALSE);
934 if (text_prop_count > 0)
935 {
936 // Make a copy of the properties, so that they are properly
937 // aligned.
938 text_props = ALLOC_MULT(textprop_T, text_prop_count);
939 if (text_props != NULL)
940 mch_memmove(text_props, prop_start,
941 text_prop_count * sizeof(textprop_T));
942
943 // Allocate an array for the indexes.
944 text_prop_idxs = ALLOC_MULT(int, text_prop_count);
945 area_highlighting = TRUE;
946 extra_check = TRUE;
947 }
948 }
949#endif
950
951 off = (unsigned)(current_ScreenLine - ScreenLines);
952 col = 0;
953
954#ifdef FEAT_RIGHTLEFT
955 if (wp->w_p_rl)
956 {
957 // Rightleft window: process the text in the normal direction, but put
958 // it in current_ScreenLine[] from right to left. Start at the
959 // rightmost column of the window.
960 col = wp->w_width - 1;
961 off += col;
962 screen_line_flags |= SLF_RIGHTLEFT;
963 }
964#endif
965
966 // Repeat for the whole displayed line.
967 for (;;)
968 {
969#if defined(FEAT_CONCEAL) || defined(FEAT_SEARCH_EXTRA)
970 int has_match_conc = 0; // match wants to conceal
971#endif
972#ifdef FEAT_CONCEAL
973 int did_decrement_ptr = FALSE;
974#endif
975 // Skip this quickly when working on the text.
976 if (draw_state != WL_LINE)
977 {
978#ifdef FEAT_CMDWIN
979 if (draw_state == WL_CMDLINE - 1 && n_extra == 0)
980 {
981 draw_state = WL_CMDLINE;
982 if (cmdwin_type != 0 && wp == curwin)
983 {
984 // Draw the cmdline character.
985 n_extra = 1;
986 c_extra = cmdwin_type;
987 c_final = NUL;
988 char_attr = hl_combine_attr(wcr_attr, HL_ATTR(HLF_AT));
989 }
990 }
991#endif
992
993#ifdef FEAT_FOLDING
994 if (draw_state == WL_FOLD - 1 && n_extra == 0)
995 {
996 int fdc = compute_foldcolumn(wp, 0);
997
998 draw_state = WL_FOLD;
999 if (fdc > 0)
1000 {
1001 // Draw the 'foldcolumn'. Allocate a buffer, "extra" may
1002 // already be in use.
1003 vim_free(p_extra_free);
1004 p_extra_free = alloc(12 + 1);
1005
1006 if (p_extra_free != NULL)
1007 {
1008 fill_foldcolumn(p_extra_free, wp, FALSE, lnum);
1009 n_extra = fdc;
1010 p_extra_free[n_extra] = NUL;
1011 p_extra = p_extra_free;
1012 c_extra = NUL;
1013 c_final = NUL;
1014 char_attr = hl_combine_attr(wcr_attr, HL_ATTR(HLF_FC));
1015 }
1016 }
1017 }
1018#endif
1019
1020#ifdef FEAT_SIGNS
1021 if (draw_state == WL_SIGN - 1 && n_extra == 0)
1022 {
1023 draw_state = WL_SIGN;
1024 // Show the sign column when there are any signs in this
1025 // buffer or when using Netbeans.
1026 if (signcolumn_on(wp))
1027 get_sign_display_info(FALSE, wp, lnum, &sattr, wcr_attr,
1028 row, startrow, filler_lines, filler_todo, &c_extra,
1029 &c_final, extra, &p_extra, &n_extra, &char_attr);
1030 }
1031#endif
1032
1033 if (draw_state == WL_NR - 1 && n_extra == 0)
1034 {
1035 draw_state = WL_NR;
1036 // Display the absolute or relative line number. After the
1037 // first fill with blanks when the 'n' flag isn't in 'cpo'
1038 if ((wp->w_p_nu || wp->w_p_rnu)
1039 && (row == startrow
1040#ifdef FEAT_DIFF
1041 + filler_lines
1042#endif
1043 || vim_strchr(p_cpo, CPO_NUMCOL) == NULL))
1044 {
1045#ifdef FEAT_SIGNS
1046 // If 'signcolumn' is set to 'number' and a sign is present
1047 // in 'lnum', then display the sign instead of the line
1048 // number.
1049 if ((*wp->w_p_scl == 'n' && *(wp->w_p_scl + 1) == 'u')
1050 && sign_present)
1051 get_sign_display_info(TRUE, wp, lnum, &sattr, wcr_attr,
1052 row, startrow, filler_lines, filler_todo,
1053 &c_extra, &c_final, extra, &p_extra, &n_extra,
1054 &char_attr);
1055 else
1056#endif
1057 {
1058 // Draw the line number (empty space after wrapping).
1059 if (row == startrow
1060#ifdef FEAT_DIFF
1061 + filler_lines
1062#endif
1063 )
1064 {
1065 long num;
1066 char *fmt = "%*ld ";
1067
1068 if (wp->w_p_nu && !wp->w_p_rnu)
1069 // 'number' + 'norelativenumber'
1070 num = (long)lnum;
1071 else
1072 {
1073 // 'relativenumber', don't use negative numbers
1074 num = labs((long)get_cursor_rel_lnum(wp, lnum));
1075 if (num == 0 && wp->w_p_nu && wp->w_p_rnu)
1076 {
1077 // 'number' + 'relativenumber'
1078 num = lnum;
1079 fmt = "%-*ld ";
1080 }
1081 }
1082
1083 sprintf((char *)extra, fmt,
1084 number_width(wp), num);
1085 if (wp->w_skipcol > 0)
1086 for (p_extra = extra; *p_extra == ' '; ++p_extra)
1087 *p_extra = '-';
1088#ifdef FEAT_RIGHTLEFT
1089 if (wp->w_p_rl) // reverse line numbers
1090 {
1091 char_u *p1, *p2;
1092 int t;
1093
1094 // like rl_mirror(), but keep the space at the end
1095 p2 = skiptowhite(extra) - 1;
1096 for (p1 = extra; p1 < p2; ++p1, --p2)
1097 {
1098 t = *p1;
1099 *p1 = *p2;
1100 *p2 = t;
1101 }
1102 }
1103#endif
1104 p_extra = extra;
1105 c_extra = NUL;
1106 c_final = NUL;
1107 }
1108 else
1109 {
1110 c_extra = ' ';
1111 c_final = NUL;
1112 }
1113 n_extra = number_width(wp) + 1;
1114 char_attr = hl_combine_attr(wcr_attr, HL_ATTR(HLF_N));
1115#ifdef FEAT_SYN_HL
1116 // When 'cursorline' is set highlight the line number of
1117 // the current line differently.
1118 // When 'cursorlineopt' has "screenline" only highlight
1119 // the line number itself.
1120 // TODO: Can we use CursorLine instead of CursorLineNr
1121 // when CursorLineNr isn't set?
Bram Moolenaar49474ca2019-10-05 21:57:12 +02001122 if (wp->w_p_cul
1123 && lnum == wp->w_cursor.lnum
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02001124 && (wp->w_p_culopt_flags & CULOPT_NBR)
1125 && (row == startrow
Bram Moolenaar49474ca2019-10-05 21:57:12 +02001126 || wp->w_p_culopt_flags & CULOPT_LINE))
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02001127 char_attr = hl_combine_attr(wcr_attr, HL_ATTR(HLF_CLN));
1128#endif
Bram Moolenaarefae76a2019-10-27 22:54:58 +01001129 if (wp->w_p_rnu && lnum < wp->w_cursor.lnum
1130 && HL_ATTR(HLF_LNA) != 0)
1131 // Use LineNrAbove
1132 char_attr = hl_combine_attr(wcr_attr,
1133 HL_ATTR(HLF_LNA));
1134 if (wp->w_p_rnu && lnum > wp->w_cursor.lnum
1135 && HL_ATTR(HLF_LNB) != 0)
1136 // Use LineNrBelow
1137 char_attr = hl_combine_attr(wcr_attr,
1138 HL_ATTR(HLF_LNB));
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02001139 }
1140 }
1141 }
1142
1143#ifdef FEAT_LINEBREAK
Bram Moolenaarb81f56f2020-02-23 15:29:46 +01001144 if (wp->w_briopt_sbr && draw_state == WL_BRI - 1
Bram Moolenaaree857022019-11-09 23:26:40 +01001145 && n_extra == 0 && *get_showbreak_value(wp) != NUL)
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02001146 // draw indent after showbreak value
1147 draw_state = WL_BRI;
Bram Moolenaarb81f56f2020-02-23 15:29:46 +01001148 else if (wp->w_briopt_sbr && draw_state == WL_SBR && n_extra == 0)
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02001149 // After the showbreak, draw the breakindent
1150 draw_state = WL_BRI - 1;
1151
1152 // draw 'breakindent': indent wrapped text accordingly
1153 if (draw_state == WL_BRI - 1 && n_extra == 0)
1154 {
1155 draw_state = WL_BRI;
1156 // if need_showbreak is set, breakindent also applies
1157 if (wp->w_p_bri && n_extra == 0
1158 && (row != startrow || need_showbreak)
1159# ifdef FEAT_DIFF
1160 && filler_lines == 0
1161# endif
1162 )
1163 {
1164 char_attr = 0;
1165# ifdef FEAT_DIFF
1166 if (diff_hlf != (hlf_T)0)
1167 {
1168 char_attr = HL_ATTR(diff_hlf);
1169# ifdef FEAT_SYN_HL
1170 if (cul_attr != 0)
1171 char_attr = hl_combine_attr(char_attr, cul_attr);
1172# endif
1173 }
1174# endif
1175 p_extra = NULL;
1176 c_extra = ' ';
Bram Moolenaar2f7b7b12019-11-03 15:46:48 +01001177 c_final = NUL;
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02001178 n_extra = get_breakindent_win(wp,
1179 ml_get_buf(wp->w_buffer, lnum, FALSE));
Bram Moolenaare882f7a2020-05-16 14:07:39 +02001180 if (row == startrow)
1181 {
1182 n_extra -= win_col_off2(wp);
1183 if (n_extra < 0)
1184 n_extra = 0;
1185 }
Bram Moolenaarb81f56f2020-02-23 15:29:46 +01001186 if (wp->w_skipcol > 0 && wp->w_p_wrap && wp->w_briopt_sbr)
Bram Moolenaardfede9a2020-01-23 19:59:22 +01001187 need_showbreak = FALSE;
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02001188 // Correct end of highlighted area for 'breakindent',
1189 // required when 'linebreak' is also set.
1190 if (tocol == vcol)
1191 tocol += n_extra;
1192 }
1193 }
1194#endif
1195
1196#if defined(FEAT_LINEBREAK) || defined(FEAT_DIFF)
1197 if (draw_state == WL_SBR - 1 && n_extra == 0)
1198 {
Bram Moolenaaree857022019-11-09 23:26:40 +01001199 char_u *sbr;
1200
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02001201 draw_state = WL_SBR;
1202# ifdef FEAT_DIFF
1203 if (filler_todo > 0)
1204 {
1205 // Draw "deleted" diff line(s).
1206 if (char2cells(fill_diff) > 1)
1207 {
1208 c_extra = '-';
1209 c_final = NUL;
1210 }
1211 else
1212 {
1213 c_extra = fill_diff;
1214 c_final = NUL;
1215 }
1216# ifdef FEAT_RIGHTLEFT
1217 if (wp->w_p_rl)
1218 n_extra = col + 1;
1219 else
1220# endif
1221 n_extra = wp->w_width - col;
1222 char_attr = HL_ATTR(HLF_DED);
1223 }
1224# endif
1225# ifdef FEAT_LINEBREAK
Bram Moolenaaree857022019-11-09 23:26:40 +01001226 sbr = get_showbreak_value(wp);
1227 if (*sbr != NUL && need_showbreak)
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02001228 {
1229 // Draw 'showbreak' at the start of each broken line.
Bram Moolenaaree857022019-11-09 23:26:40 +01001230 p_extra = sbr;
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02001231 c_extra = NUL;
1232 c_final = NUL;
Bram Moolenaaree857022019-11-09 23:26:40 +01001233 n_extra = (int)STRLEN(sbr);
Bram Moolenaardfede9a2020-01-23 19:59:22 +01001234 if (wp->w_skipcol == 0 || !wp->w_p_wrap)
1235 need_showbreak = FALSE;
Bram Moolenaaree857022019-11-09 23:26:40 +01001236 vcol_sbr = vcol + MB_CHARLEN(sbr);
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02001237 // Correct end of highlighted area for 'showbreak',
1238 // required when 'linebreak' is also set.
1239 if (tocol == vcol)
1240 tocol += n_extra;
1241 // combine 'showbreak' with 'wincolor'
Bram Moolenaar42e931b2019-12-04 19:08:50 +01001242 char_attr = hl_combine_attr(win_attr, HL_ATTR(HLF_AT));
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02001243# ifdef FEAT_SYN_HL
1244 // combine 'showbreak' with 'cursorline'
1245 if (cul_attr != 0)
1246 char_attr = hl_combine_attr(char_attr, cul_attr);
1247# endif
1248 }
1249# endif
1250 }
1251#endif
1252
1253 if (draw_state == WL_LINE - 1 && n_extra == 0)
1254 {
1255 draw_state = WL_LINE;
1256 if (saved_n_extra)
1257 {
1258 // Continue item from end of wrapped line.
1259 n_extra = saved_n_extra;
1260 c_extra = saved_c_extra;
1261 c_final = saved_c_final;
1262 p_extra = saved_p_extra;
1263 char_attr = saved_char_attr;
1264 }
1265 else
1266 char_attr = win_attr;
1267 }
1268 }
1269#ifdef FEAT_SYN_HL
1270 if (cul_screenline)
1271 {
1272 if (draw_state == WL_LINE
1273 && vcol >= left_curline_col
1274 && vcol < right_curline_col)
1275 {
1276 cul_attr = HL_ATTR(HLF_CUL);
1277 line_attr = cul_attr;
1278 }
1279 else
1280 {
1281 cul_attr = 0;
1282 line_attr = line_attr_save;
1283 }
1284 }
1285#endif
1286
1287 // When still displaying '$' of change command, stop at cursor.
1288 // When only displaying the (relative) line number and that's done,
1289 // stop here.
1290 if ((dollar_vcol >= 0 && wp == curwin
1291 && lnum == wp->w_cursor.lnum && vcol >= (long)wp->w_virtcol
1292#ifdef FEAT_DIFF
1293 && filler_todo <= 0
1294#endif
1295 )
1296 || (number_only && draw_state > WL_NR))
1297 {
1298 screen_line(screen_row, wp->w_wincol, col, -(int)wp->w_width,
1299 screen_line_flags);
1300 // Pretend we have finished updating the window. Except when
1301 // 'cursorcolumn' is set.
1302#ifdef FEAT_SYN_HL
1303 if (wp->w_p_cuc)
1304 row = wp->w_cline_row + wp->w_cline_height;
1305 else
1306#endif
1307 row = wp->w_height;
1308 break;
1309 }
1310
Bram Moolenaar34390282019-10-16 14:38:26 +02001311 if (draw_state == WL_LINE && (area_highlighting || extra_check))
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02001312 {
1313 // handle Visual or match highlighting in this line
1314 if (vcol == fromcol
1315 || (has_mbyte && vcol + 1 == fromcol && n_extra == 0
1316 && (*mb_ptr2cells)(ptr) > 1)
1317 || ((int)vcol_prev == fromcol_prev
1318 && vcol_prev < vcol // not at margin
1319 && vcol < tocol))
1320 area_attr = vi_attr; // start highlighting
1321 else if (area_attr != 0
1322 && (vcol == tocol
1323 || (noinvcur && (colnr_T)vcol == wp->w_virtcol)))
1324 area_attr = 0; // stop highlighting
1325
1326#ifdef FEAT_SEARCH_EXTRA
1327 if (!n_extra)
1328 {
1329 // Check for start/end of 'hlsearch' and other matches.
1330 // After end, check for start/end of next match.
1331 // When another match, have to check for start again.
1332 v = (long)(ptr - line);
1333 search_attr = update_search_hl(wp, lnum, (colnr_T)v, &line,
1334 &screen_search_hl, &has_match_conc,
1335 &match_conc, did_line_attr, lcs_eol_one);
1336 ptr = line + v; // "line" may have been changed
1337 }
1338#endif
1339
1340#ifdef FEAT_DIFF
1341 if (diff_hlf != (hlf_T)0)
1342 {
1343 if (diff_hlf == HLF_CHD && ptr - line >= change_start
1344 && n_extra == 0)
1345 diff_hlf = HLF_TXD; // changed text
1346 if (diff_hlf == HLF_TXD && ptr - line > change_end
1347 && n_extra == 0)
1348 diff_hlf = HLF_CHD; // changed line
1349 line_attr = HL_ATTR(diff_hlf);
1350 if (wp->w_p_cul && lnum == wp->w_cursor.lnum
1351 && wp->w_p_culopt_flags != CULOPT_NBR
1352 && (!cul_screenline || (vcol >= left_curline_col
1353 && vcol <= right_curline_col)))
1354 line_attr = hl_combine_attr(
1355 line_attr, HL_ATTR(HLF_CUL));
1356 }
1357#endif
1358
Bram Moolenaar05ad5ff2019-11-30 22:48:27 +01001359#ifdef FEAT_PROP_POPUP
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02001360 if (text_props != NULL)
1361 {
1362 int pi;
1363 int bcol = (int)(ptr - line);
1364
1365 if (n_extra > 0)
1366 --bcol; // still working on the previous char, e.g. Tab
1367
1368 // Check if any active property ends.
1369 for (pi = 0; pi < text_props_active; ++pi)
1370 {
1371 int tpi = text_prop_idxs[pi];
1372
1373 if (bcol >= text_props[tpi].tp_col - 1
1374 + text_props[tpi].tp_len)
1375 {
1376 if (pi + 1 < text_props_active)
1377 mch_memmove(text_prop_idxs + pi,
1378 text_prop_idxs + pi + 1,
1379 sizeof(int)
1380 * (text_props_active - (pi + 1)));
1381 --text_props_active;
1382 --pi;
1383 }
1384 }
1385
1386 // Add any text property that starts in this column.
1387 while (text_prop_next < text_prop_count
1388 && bcol >= text_props[text_prop_next].tp_col - 1)
1389 text_prop_idxs[text_props_active++] = text_prop_next++;
1390
1391 text_prop_attr = 0;
1392 text_prop_combine = FALSE;
Bram Moolenaar053f7122019-09-23 22:17:15 +02001393 text_prop_type = NULL;
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02001394 if (text_props_active > 0)
1395 {
1396 // Sort the properties on priority and/or starting last.
1397 // Then combine the attributes, highest priority last.
1398 current_text_props = text_props;
1399 current_buf = wp->w_buffer;
1400 qsort((void *)text_prop_idxs, (size_t)text_props_active,
1401 sizeof(int), text_prop_compare);
1402
1403 for (pi = 0; pi < text_props_active; ++pi)
1404 {
1405 int tpi = text_prop_idxs[pi];
1406 proptype_T *pt = text_prop_type_by_id(
1407 wp->w_buffer, text_props[tpi].tp_type);
1408
1409 if (pt != NULL && pt->pt_hl_id > 0)
1410 {
1411 int pt_attr = syn_id2attr(pt->pt_hl_id);
1412
1413 text_prop_type = pt;
1414 text_prop_attr =
1415 hl_combine_attr(text_prop_attr, pt_attr);
1416 text_prop_combine = pt->pt_flags & PT_FLAG_COMBINE;
1417 }
1418 }
1419 }
1420 }
1421#endif
1422
Bram Moolenaara74fda62019-10-19 17:38:03 +02001423#ifdef FEAT_SYN_HL
Bram Moolenaara74fda62019-10-19 17:38:03 +02001424 if (extra_check && n_extra == 0)
Bram Moolenaar34390282019-10-16 14:38:26 +02001425 {
Bram Moolenaar82260af2019-10-20 13:16:22 +02001426 syntax_attr = 0;
Bram Moolenaara74fda62019-10-19 17:38:03 +02001427# ifdef FEAT_TERMINAL
Bram Moolenaar34390282019-10-16 14:38:26 +02001428 if (get_term_attr)
Bram Moolenaar219c7d02020-02-01 21:57:29 +01001429 syntax_attr = term_get_attr(wp, lnum, vcol);
Bram Moolenaara74fda62019-10-19 17:38:03 +02001430# endif
Bram Moolenaar34390282019-10-16 14:38:26 +02001431 // Get syntax attribute.
1432 if (has_syntax)
1433 {
1434 // Get the syntax attribute for the character. If there
1435 // is an error, disable syntax highlighting.
1436 save_did_emsg = did_emsg;
1437 did_emsg = FALSE;
1438
1439 v = (long)(ptr - line);
Bram Moolenaar9115c612019-10-16 16:57:06 +02001440 if (v == prev_syntax_col)
1441 // at same column again
1442 syntax_attr = prev_syntax_attr;
1443 else
1444 {
Bram Moolenaarb2fe1d62019-10-16 21:33:40 +02001445# ifdef FEAT_SPELL
Bram Moolenaar9115c612019-10-16 16:57:06 +02001446 can_spell = TRUE;
Bram Moolenaarb2fe1d62019-10-16 21:33:40 +02001447# endif
Bram Moolenaar9115c612019-10-16 16:57:06 +02001448 syntax_attr = get_syntax_attr((colnr_T)v,
Bram Moolenaar34390282019-10-16 14:38:26 +02001449# ifdef FEAT_SPELL
1450 has_spell ? &can_spell :
1451# endif
1452 NULL, FALSE);
Bram Moolenaar9115c612019-10-16 16:57:06 +02001453 prev_syntax_col = v;
1454 prev_syntax_attr = syntax_attr;
1455 }
Bram Moolenaar34390282019-10-16 14:38:26 +02001456
Bram Moolenaar34390282019-10-16 14:38:26 +02001457 if (did_emsg)
1458 {
1459 wp->w_s->b_syn_error = TRUE;
1460 has_syntax = FALSE;
1461 syntax_attr = 0;
1462 }
1463 else
1464 did_emsg = save_did_emsg;
1465# ifdef SYN_TIME_LIMIT
1466 if (wp->w_s->b_syn_slow)
1467 has_syntax = FALSE;
1468# endif
1469
1470 // Need to get the line again, a multi-line regexp may
1471 // have made it invalid.
1472 line = ml_get_buf(wp->w_buffer, lnum, FALSE);
1473 ptr = line + v;
1474# ifdef FEAT_CONCEAL
1475 // no concealing past the end of the line, it interferes
1476 // with line highlighting
1477 if (*ptr == NUL)
1478 syntax_flags = 0;
1479 else
1480 syntax_flags = get_syntax_info(&syntax_seqnr);
1481# endif
1482 }
Bram Moolenaar34390282019-10-16 14:38:26 +02001483 }
Bram Moolenaar05ad5ff2019-11-30 22:48:27 +01001484# ifdef FEAT_PROP_POPUP
Bram Moolenaardbd43162019-11-09 21:28:14 +01001485 // Combine text property highlight into syntax highlight.
1486 if (text_prop_type != NULL)
1487 {
1488 if (text_prop_combine)
1489 syntax_attr = hl_combine_attr(syntax_attr, text_prop_attr);
1490 else
1491 syntax_attr = text_prop_attr;
1492 }
1493# endif
Bram Moolenaara74fda62019-10-19 17:38:03 +02001494#endif
Bram Moolenaar34390282019-10-16 14:38:26 +02001495
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02001496 // Decide which of the highlight attributes to use.
1497 attr_pri = TRUE;
1498#ifdef LINE_ATTR
1499 if (area_attr != 0)
Bram Moolenaar84590062019-10-18 23:12:20 +02001500 {
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02001501 char_attr = hl_combine_attr(line_attr, area_attr);
Bram Moolenaar84590062019-10-18 23:12:20 +02001502# ifdef FEAT_SYN_HL
Bram Moolenaardbd43162019-11-09 21:28:14 +01001503 char_attr = hl_combine_attr(syntax_attr, char_attr);
Bram Moolenaar84590062019-10-18 23:12:20 +02001504# endif
1505 }
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02001506 else if (search_attr != 0)
Bram Moolenaar84590062019-10-18 23:12:20 +02001507 {
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02001508 char_attr = hl_combine_attr(line_attr, search_attr);
Bram Moolenaar84590062019-10-18 23:12:20 +02001509# ifdef FEAT_SYN_HL
Bram Moolenaardbd43162019-11-09 21:28:14 +01001510 char_attr = hl_combine_attr(syntax_attr, char_attr);
Bram Moolenaar84590062019-10-18 23:12:20 +02001511# endif
1512 }
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02001513 else if (line_attr != 0 && ((fromcol == -10 && tocol == MAXCOL)
1514 || vcol < fromcol || vcol_prev < fromcol_prev
1515 || vcol >= tocol))
1516 {
1517 // Use line_attr when not in the Visual or 'incsearch' area
1518 // (area_attr may be 0 when "noinvcur" is set).
Bram Moolenaar34390282019-10-16 14:38:26 +02001519# ifdef FEAT_SYN_HL
Bram Moolenaardbd43162019-11-09 21:28:14 +01001520 char_attr = hl_combine_attr(syntax_attr, line_attr);
1521# else
1522 char_attr = line_attr;
Bram Moolenaar34390282019-10-16 14:38:26 +02001523# endif
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02001524 attr_pri = FALSE;
1525 }
1526#else
1527 if (area_attr != 0)
1528 char_attr = area_attr;
1529 else if (search_attr != 0)
1530 char_attr = search_attr;
1531#endif
1532 else
1533 {
1534 attr_pri = FALSE;
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02001535#ifdef FEAT_SYN_HL
Bram Moolenaardbd43162019-11-09 21:28:14 +01001536 char_attr = syntax_attr;
Bram Moolenaara74fda62019-10-19 17:38:03 +02001537#else
Bram Moolenaardbd43162019-11-09 21:28:14 +01001538 char_attr = 0;
Bram Moolenaara74fda62019-10-19 17:38:03 +02001539#endif
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02001540 }
1541 }
Bram Moolenaar024dbd22019-11-02 22:00:15 +01001542
1543 // combine attribute with 'wincolor'
1544 if (win_attr != 0)
1545 {
1546 if (char_attr == 0)
1547 char_attr = win_attr;
1548 else
1549 char_attr = hl_combine_attr(win_attr, char_attr);
1550 }
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02001551
1552 // Get the next character to put on the screen.
1553
1554 // The "p_extra" points to the extra stuff that is inserted to
1555 // represent special characters (non-printable stuff) and other
1556 // things. When all characters are the same, c_extra is used.
1557 // If c_final is set, it will compulsorily be used at the end.
1558 // "p_extra" must end in a NUL to avoid mb_ptr2len() reads past
1559 // "p_extra[n_extra]".
1560 // For the '$' of the 'list' option, n_extra == 1, p_extra == "".
1561 if (n_extra > 0)
1562 {
1563 if (c_extra != NUL || (n_extra == 1 && c_final != NUL))
1564 {
1565 c = (n_extra == 1 && c_final != NUL) ? c_final : c_extra;
1566 mb_c = c; // doesn't handle non-utf-8 multi-byte!
1567 if (enc_utf8 && utf_char2len(c) > 1)
1568 {
1569 mb_utf8 = TRUE;
1570 u8cc[0] = 0;
1571 c = 0xc0;
1572 }
1573 else
1574 mb_utf8 = FALSE;
1575 }
1576 else
1577 {
1578 c = *p_extra;
1579 if (has_mbyte)
1580 {
1581 mb_c = c;
1582 if (enc_utf8)
1583 {
1584 // If the UTF-8 character is more than one byte:
1585 // Decode it into "mb_c".
1586 mb_l = utfc_ptr2len(p_extra);
1587 mb_utf8 = FALSE;
1588 if (mb_l > n_extra)
1589 mb_l = 1;
1590 else if (mb_l > 1)
1591 {
1592 mb_c = utfc_ptr2char(p_extra, u8cc);
1593 mb_utf8 = TRUE;
1594 c = 0xc0;
1595 }
1596 }
1597 else
1598 {
1599 // if this is a DBCS character, put it in "mb_c"
1600 mb_l = MB_BYTE2LEN(c);
1601 if (mb_l >= n_extra)
1602 mb_l = 1;
1603 else if (mb_l > 1)
1604 mb_c = (c << 8) + p_extra[1];
1605 }
1606 if (mb_l == 0) // at the NUL at end-of-line
1607 mb_l = 1;
1608
1609 // If a double-width char doesn't fit display a '>' in the
1610 // last column.
1611 if ((
1612# ifdef FEAT_RIGHTLEFT
1613 wp->w_p_rl ? (col <= 0) :
1614# endif
1615 (col >= wp->w_width - 1))
1616 && (*mb_char2cells)(mb_c) == 2)
1617 {
1618 c = '>';
1619 mb_c = c;
1620 mb_l = 1;
1621 mb_utf8 = FALSE;
1622 multi_attr = HL_ATTR(HLF_AT);
1623#ifdef FEAT_SYN_HL
1624 if (cul_attr)
1625 multi_attr = hl_combine_attr(multi_attr, cul_attr);
1626#endif
Bram Moolenaar92e25ab2019-11-26 22:39:10 +01001627 multi_attr = hl_combine_attr(win_attr, multi_attr);
1628
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02001629 // put the pointer back to output the double-width
1630 // character at the start of the next line.
1631 ++n_extra;
1632 --p_extra;
1633 }
1634 else
1635 {
1636 n_extra -= mb_l - 1;
1637 p_extra += mb_l - 1;
1638 }
1639 }
1640 ++p_extra;
1641 }
1642 --n_extra;
1643 }
1644 else
1645 {
1646#ifdef FEAT_LINEBREAK
1647 int c0;
1648#endif
Bram Moolenaar2f7b7b12019-11-03 15:46:48 +01001649 VIM_CLEAR(p_extra_free);
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02001650
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02001651 // Get a character from the line itself.
1652 c = *ptr;
1653#ifdef FEAT_LINEBREAK
1654 c0 = *ptr;
1655#endif
1656 if (has_mbyte)
1657 {
1658 mb_c = c;
1659 if (enc_utf8)
1660 {
1661 // If the UTF-8 character is more than one byte: Decode it
1662 // into "mb_c".
1663 mb_l = utfc_ptr2len(ptr);
1664 mb_utf8 = FALSE;
1665 if (mb_l > 1)
1666 {
1667 mb_c = utfc_ptr2char(ptr, u8cc);
1668 // Overlong encoded ASCII or ASCII with composing char
1669 // is displayed normally, except a NUL.
1670 if (mb_c < 0x80)
1671 {
1672 c = mb_c;
1673#ifdef FEAT_LINEBREAK
1674 c0 = mb_c;
1675#endif
1676 }
1677 mb_utf8 = TRUE;
1678
1679 // At start of the line we can have a composing char.
1680 // Draw it as a space with a composing char.
1681 if (utf_iscomposing(mb_c))
1682 {
1683 int i;
1684
1685 for (i = Screen_mco - 1; i > 0; --i)
1686 u8cc[i] = u8cc[i - 1];
1687 u8cc[0] = mb_c;
1688 mb_c = ' ';
1689 }
1690 }
1691
1692 if ((mb_l == 1 && c >= 0x80)
1693 || (mb_l >= 1 && mb_c == 0)
1694 || (mb_l > 1 && (!vim_isprintc(mb_c))))
1695 {
1696 // Illegal UTF-8 byte: display as <xx>.
1697 // Non-BMP character : display as ? or fullwidth ?.
1698 transchar_hex(extra, mb_c);
1699# ifdef FEAT_RIGHTLEFT
1700 if (wp->w_p_rl) // reverse
1701 rl_mirror(extra);
1702# endif
1703 p_extra = extra;
1704 c = *p_extra;
1705 mb_c = mb_ptr2char_adv(&p_extra);
1706 mb_utf8 = (c >= 0x80);
1707 n_extra = (int)STRLEN(p_extra);
1708 c_extra = NUL;
1709 c_final = NUL;
1710 if (area_attr == 0 && search_attr == 0)
1711 {
1712 n_attr = n_extra + 1;
Bram Moolenaar42e931b2019-12-04 19:08:50 +01001713 extra_attr = hl_combine_attr(
1714 win_attr, HL_ATTR(HLF_8));
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02001715 saved_attr2 = char_attr; // save current attr
1716 }
1717 }
1718 else if (mb_l == 0) // at the NUL at end-of-line
1719 mb_l = 1;
1720#ifdef FEAT_ARABIC
1721 else if (p_arshape && !p_tbidi && ARABIC_CHAR(mb_c))
1722 {
1723 // Do Arabic shaping.
1724 int pc, pc1, nc;
1725 int pcc[MAX_MCO];
1726
1727 // The idea of what is the previous and next
1728 // character depends on 'rightleft'.
1729 if (wp->w_p_rl)
1730 {
1731 pc = prev_c;
1732 pc1 = prev_c1;
1733 nc = utf_ptr2char(ptr + mb_l);
1734 prev_c1 = u8cc[0];
1735 }
1736 else
1737 {
1738 pc = utfc_ptr2char(ptr + mb_l, pcc);
1739 nc = prev_c;
1740 pc1 = pcc[0];
1741 }
1742 prev_c = mb_c;
1743
1744 mb_c = arabic_shape(mb_c, &c, &u8cc[0], pc, pc1, nc);
1745 }
1746 else
1747 prev_c = mb_c;
1748#endif
1749 }
1750 else // enc_dbcs
1751 {
1752 mb_l = MB_BYTE2LEN(c);
1753 if (mb_l == 0) // at the NUL at end-of-line
1754 mb_l = 1;
1755 else if (mb_l > 1)
1756 {
1757 // We assume a second byte below 32 is illegal.
1758 // Hopefully this is OK for all double-byte encodings!
1759 if (ptr[1] >= 32)
1760 mb_c = (c << 8) + ptr[1];
1761 else
1762 {
1763 if (ptr[1] == NUL)
1764 {
1765 // head byte at end of line
1766 mb_l = 1;
Bram Moolenaar32ee6272020-06-10 14:16:49 +02001767 transchar_nonprint(wp->w_buffer, extra, c);
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02001768 }
1769 else
1770 {
1771 // illegal tail byte
1772 mb_l = 2;
1773 STRCPY(extra, "XX");
1774 }
1775 p_extra = extra;
1776 n_extra = (int)STRLEN(extra) - 1;
1777 c_extra = NUL;
1778 c_final = NUL;
1779 c = *p_extra++;
1780 if (area_attr == 0 && search_attr == 0)
1781 {
1782 n_attr = n_extra + 1;
Bram Moolenaar42e931b2019-12-04 19:08:50 +01001783 extra_attr = hl_combine_attr(
1784 win_attr, HL_ATTR(HLF_8));
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02001785 saved_attr2 = char_attr; // save current attr
1786 }
1787 mb_c = c;
1788 }
1789 }
1790 }
1791 // If a double-width char doesn't fit display a '>' in the
1792 // last column; the character is displayed at the start of the
1793 // next line.
1794 if ((
1795# ifdef FEAT_RIGHTLEFT
1796 wp->w_p_rl ? (col <= 0) :
1797# endif
1798 (col >= wp->w_width - 1))
1799 && (*mb_char2cells)(mb_c) == 2)
1800 {
1801 c = '>';
1802 mb_c = c;
1803 mb_utf8 = FALSE;
1804 mb_l = 1;
Bram Moolenaar92e25ab2019-11-26 22:39:10 +01001805 multi_attr = hl_combine_attr(win_attr, HL_ATTR(HLF_AT));
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02001806 // Put pointer back so that the character will be
1807 // displayed at the start of the next line.
1808 --ptr;
1809#ifdef FEAT_CONCEAL
1810 did_decrement_ptr = TRUE;
1811#endif
1812 }
1813 else if (*ptr != NUL)
1814 ptr += mb_l - 1;
1815
1816 // If a double-width char doesn't fit at the left side display
1817 // a '<' in the first column. Don't do this for unprintable
1818 // characters.
1819 if (n_skip > 0 && mb_l > 1 && n_extra == 0)
1820 {
1821 n_extra = 1;
1822 c_extra = MB_FILLER_CHAR;
1823 c_final = NUL;
1824 c = ' ';
1825 if (area_attr == 0 && search_attr == 0)
1826 {
1827 n_attr = n_extra + 1;
Bram Moolenaar42e931b2019-12-04 19:08:50 +01001828 extra_attr = hl_combine_attr(win_attr, HL_ATTR(HLF_AT));
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02001829 saved_attr2 = char_attr; // save current attr
1830 }
1831 mb_c = c;
1832 mb_utf8 = FALSE;
1833 mb_l = 1;
1834 }
1835
1836 }
1837 ++ptr;
1838
1839 if (extra_check)
1840 {
1841#ifdef FEAT_SPELL
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02001842 // Check spelling (unless at the end of the line).
1843 // Only do this when there is no syntax highlighting, the
1844 // @Spell cluster is not used or the current syntax item
1845 // contains the @Spell cluster.
Bram Moolenaar7751d1d2019-10-18 20:37:08 +02001846 v = (long)(ptr - line);
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02001847 if (has_spell && v >= word_end && v > cur_checked_col)
1848 {
1849 spell_attr = 0;
1850 if (c != 0 && (
1851# ifdef FEAT_SYN_HL
1852 !has_syntax ||
1853# endif
1854 can_spell))
1855 {
1856 char_u *prev_ptr, *p;
1857 int len;
1858 hlf_T spell_hlf = HLF_COUNT;
1859 if (has_mbyte)
1860 {
1861 prev_ptr = ptr - mb_l;
1862 v -= mb_l - 1;
1863 }
1864 else
1865 prev_ptr = ptr - 1;
1866
1867 // Use nextline[] if possible, it has the start of the
1868 // next line concatenated.
1869 if ((prev_ptr - line) - nextlinecol >= 0)
1870 p = nextline + (prev_ptr - line) - nextlinecol;
1871 else
1872 p = prev_ptr;
1873 cap_col -= (int)(prev_ptr - line);
1874 len = spell_check(wp, p, &spell_hlf, &cap_col,
1875 nochange);
1876 word_end = v + len;
1877
1878 // In Insert mode only highlight a word that
1879 // doesn't touch the cursor.
1880 if (spell_hlf != HLF_COUNT
1881 && (State & INSERT) != 0
1882 && wp->w_cursor.lnum == lnum
1883 && wp->w_cursor.col >=
1884 (colnr_T)(prev_ptr - line)
1885 && wp->w_cursor.col < (colnr_T)word_end)
1886 {
1887 spell_hlf = HLF_COUNT;
1888 spell_redraw_lnum = lnum;
1889 }
1890
1891 if (spell_hlf == HLF_COUNT && p != prev_ptr
1892 && (p - nextline) + len > nextline_idx)
1893 {
1894 // Remember that the good word continues at the
1895 // start of the next line.
1896 checked_lnum = lnum + 1;
Bram Moolenaar7751d1d2019-10-18 20:37:08 +02001897 checked_col = (int)((p - nextline)
1898 + len - nextline_idx);
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02001899 }
1900
1901 // Turn index into actual attributes.
1902 if (spell_hlf != HLF_COUNT)
1903 spell_attr = highlight_attr[spell_hlf];
1904
1905 if (cap_col > 0)
1906 {
1907 if (p != prev_ptr
1908 && (p - nextline) + cap_col >= nextline_idx)
1909 {
1910 // Remember that the word in the next line
1911 // must start with a capital.
1912 capcol_lnum = lnum + 1;
1913 cap_col = (int)((p - nextline) + cap_col
1914 - nextline_idx);
1915 }
1916 else
1917 // Compute the actual column.
1918 cap_col += (int)(prev_ptr - line);
1919 }
1920 }
1921 }
1922 if (spell_attr != 0)
1923 {
1924 if (!attr_pri)
1925 char_attr = hl_combine_attr(char_attr, spell_attr);
1926 else
1927 char_attr = hl_combine_attr(spell_attr, char_attr);
1928 }
1929#endif
1930#ifdef FEAT_LINEBREAK
1931 // Found last space before word: check for line break.
1932 if (wp->w_p_lbr && c0 == c
1933 && VIM_ISBREAK(c) && !VIM_ISBREAK((int)*ptr))
1934 {
1935 int mb_off = has_mbyte ? (*mb_head_off)(line, ptr - 1) : 0;
1936 char_u *p = ptr - (mb_off + 1);
1937
1938 // TODO: is passing p for start of the line OK?
1939 n_extra = win_lbr_chartabsize(wp, line, p, (colnr_T)vcol,
1940 NULL) - 1;
1941 if (c == TAB && n_extra + col > wp->w_width)
1942# ifdef FEAT_VARTABS
1943 n_extra = tabstop_padding(vcol, wp->w_buffer->b_p_ts,
1944 wp->w_buffer->b_p_vts_array) - 1;
1945# else
1946 n_extra = (int)wp->w_buffer->b_p_ts
1947 - vcol % (int)wp->w_buffer->b_p_ts - 1;
1948# endif
1949
1950 c_extra = mb_off > 0 ? MB_FILLER_CHAR : ' ';
1951 c_final = NUL;
1952 if (VIM_ISWHITE(c))
1953 {
Bram Moolenaar912bc4a2019-12-01 18:58:11 +01001954# ifdef FEAT_CONCEAL
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02001955 if (c == TAB)
1956 // See "Tab alignment" below.
1957 FIX_FOR_BOGUSCOLS;
Bram Moolenaar912bc4a2019-12-01 18:58:11 +01001958# endif
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02001959 if (!wp->w_p_list)
1960 c = ' ';
1961 }
1962 }
1963#endif
1964
1965 // 'list': Change char 160 to lcs_nbsp and space to lcs_space.
1966 // But not when the character is followed by a composing
1967 // character (use mb_l to check that).
1968 if (wp->w_p_list
1969 && ((((c == 160 && mb_l == 1)
1970 || (mb_utf8
1971 && ((mb_c == 160 && mb_l == 2)
1972 || (mb_c == 0x202f && mb_l == 3))))
1973 && lcs_nbsp)
1974 || (c == ' '
1975 && mb_l == 1
1976 && lcs_space
1977 && ptr - line <= trailcol)))
1978 {
1979 c = (c == ' ') ? lcs_space : lcs_nbsp;
1980 if (area_attr == 0 && search_attr == 0)
1981 {
1982 n_attr = 1;
Bram Moolenaar42e931b2019-12-04 19:08:50 +01001983 extra_attr = hl_combine_attr(win_attr, HL_ATTR(HLF_8));
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02001984 saved_attr2 = char_attr; // save current attr
1985 }
1986 mb_c = c;
1987 if (enc_utf8 && utf_char2len(c) > 1)
1988 {
1989 mb_utf8 = TRUE;
1990 u8cc[0] = 0;
1991 c = 0xc0;
1992 }
1993 else
1994 mb_utf8 = FALSE;
1995 }
1996
1997 if (trailcol != MAXCOL && ptr > line + trailcol && c == ' ')
1998 {
1999 c = lcs_trail;
2000 if (!attr_pri)
2001 {
2002 n_attr = 1;
Bram Moolenaar42e931b2019-12-04 19:08:50 +01002003 extra_attr = hl_combine_attr(win_attr, HL_ATTR(HLF_8));
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02002004 saved_attr2 = char_attr; // save current attr
2005 }
2006 mb_c = c;
2007 if (enc_utf8 && utf_char2len(c) > 1)
2008 {
2009 mb_utf8 = TRUE;
2010 u8cc[0] = 0;
2011 c = 0xc0;
2012 }
2013 else
2014 mb_utf8 = FALSE;
2015 }
2016 }
2017
2018 // Handling of non-printable characters.
2019 if (!vim_isprintc(c))
2020 {
2021 // when getting a character from the file, we may have to
2022 // turn it into something else on the way to putting it
2023 // into "ScreenLines".
2024 if (c == TAB && (!wp->w_p_list || lcs_tab1))
2025 {
2026 int tab_len = 0;
2027 long vcol_adjusted = vcol; // removed showbreak length
2028#ifdef FEAT_LINEBREAK
Bram Moolenaaree857022019-11-09 23:26:40 +01002029 char_u *sbr = get_showbreak_value(wp);
2030
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02002031 // only adjust the tab_len, when at the first column
2032 // after the showbreak value was drawn
Bram Moolenaaree857022019-11-09 23:26:40 +01002033 if (*sbr != NUL && vcol == vcol_sbr && wp->w_p_wrap)
2034 vcol_adjusted = vcol - MB_CHARLEN(sbr);
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02002035#endif
2036 // tab amount depends on current column
2037#ifdef FEAT_VARTABS
2038 tab_len = tabstop_padding(vcol_adjusted,
2039 wp->w_buffer->b_p_ts,
2040 wp->w_buffer->b_p_vts_array) - 1;
2041#else
2042 tab_len = (int)wp->w_buffer->b_p_ts
2043 - vcol_adjusted % (int)wp->w_buffer->b_p_ts - 1;
2044#endif
2045
2046#ifdef FEAT_LINEBREAK
2047 if (!wp->w_p_lbr || !wp->w_p_list)
2048#endif
2049 // tab amount depends on current column
2050 n_extra = tab_len;
2051#ifdef FEAT_LINEBREAK
2052 else
2053 {
2054 char_u *p;
2055 int len;
2056 int i;
2057 int saved_nextra = n_extra;
2058
2059#ifdef FEAT_CONCEAL
2060 if (vcol_off > 0)
2061 // there are characters to conceal
2062 tab_len += vcol_off;
2063 // boguscols before FIX_FOR_BOGUSCOLS macro from above
2064 if (wp->w_p_list && lcs_tab1 && old_boguscols > 0
2065 && n_extra > tab_len)
2066 tab_len += n_extra - tab_len;
2067#endif
2068
2069 // if n_extra > 0, it gives the number of chars, to
2070 // use for a tab, else we need to calculate the width
2071 // for a tab
2072 len = (tab_len * mb_char2len(lcs_tab2));
2073 if (n_extra > 0)
2074 len += n_extra - tab_len;
2075 c = lcs_tab1;
2076 p = alloc(len + 1);
2077 vim_memset(p, ' ', len);
2078 p[len] = NUL;
2079 vim_free(p_extra_free);
2080 p_extra_free = p;
2081 for (i = 0; i < tab_len; i++)
2082 {
2083 int lcs = lcs_tab2;
2084
2085 if (*p == NUL)
2086 {
2087 tab_len = i;
2088 break;
2089 }
2090
2091 // if lcs_tab3 is given, need to change the char
2092 // for tab
2093 if (lcs_tab3 && i == tab_len - 1)
2094 lcs = lcs_tab3;
2095 mb_char2bytes(lcs, p);
2096 p += mb_char2len(lcs);
2097 n_extra += mb_char2len(lcs)
2098 - (saved_nextra > 0 ? 1 : 0);
2099 }
2100 p_extra = p_extra_free;
2101#ifdef FEAT_CONCEAL
2102 // n_extra will be increased by FIX_FOX_BOGUSCOLS
2103 // macro below, so need to adjust for that here
2104 if (vcol_off > 0)
2105 n_extra -= vcol_off;
2106#endif
2107 }
2108#endif
2109#ifdef FEAT_CONCEAL
2110 {
2111 int vc_saved = vcol_off;
2112
2113 // Tab alignment should be identical regardless of
2114 // 'conceallevel' value. So tab compensates of all
2115 // previous concealed characters, and thus resets
2116 // vcol_off and boguscols accumulated so far in the
2117 // line. Note that the tab can be longer than
2118 // 'tabstop' when there are concealed characters.
2119 FIX_FOR_BOGUSCOLS;
2120
2121 // Make sure, the highlighting for the tab char will be
2122 // correctly set further below (effectively reverts the
2123 // FIX_FOR_BOGSUCOLS macro
2124 if (n_extra == tab_len + vc_saved && wp->w_p_list
2125 && lcs_tab1)
2126 tab_len += vc_saved;
2127 }
2128#endif
2129 mb_utf8 = FALSE; // don't draw as UTF-8
2130 if (wp->w_p_list)
2131 {
2132 c = (n_extra == 0 && lcs_tab3) ? lcs_tab3 : lcs_tab1;
2133#ifdef FEAT_LINEBREAK
2134 if (wp->w_p_lbr)
2135 c_extra = NUL; // using p_extra from above
2136 else
2137#endif
2138 c_extra = lcs_tab2;
2139 c_final = lcs_tab3;
2140 n_attr = tab_len + 1;
Bram Moolenaar42e931b2019-12-04 19:08:50 +01002141 extra_attr = hl_combine_attr(win_attr, HL_ATTR(HLF_8));
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02002142 saved_attr2 = char_attr; // save current attr
2143 mb_c = c;
2144 if (enc_utf8 && utf_char2len(c) > 1)
2145 {
2146 mb_utf8 = TRUE;
2147 u8cc[0] = 0;
2148 c = 0xc0;
2149 }
2150 }
2151 else
2152 {
2153 c_final = NUL;
2154 c_extra = ' ';
2155 c = ' ';
2156 }
2157 }
2158 else if (c == NUL
2159 && (wp->w_p_list
2160 || ((fromcol >= 0 || fromcol_prev >= 0)
2161 && tocol > vcol
2162 && VIsual_mode != Ctrl_V
2163 && (
2164# ifdef FEAT_RIGHTLEFT
2165 wp->w_p_rl ? (col >= 0) :
2166# endif
2167 (col < wp->w_width))
2168 && !(noinvcur
2169 && lnum == wp->w_cursor.lnum
2170 && (colnr_T)vcol == wp->w_virtcol)))
2171 && lcs_eol_one > 0)
2172 {
2173 // Display a '$' after the line or highlight an extra
2174 // character if the line break is included.
2175#if defined(FEAT_DIFF) || defined(LINE_ATTR)
2176 // For a diff line the highlighting continues after the
2177 // "$".
2178 if (
2179# ifdef FEAT_DIFF
2180 diff_hlf == (hlf_T)0
2181# ifdef LINE_ATTR
2182 &&
2183# endif
2184# endif
2185# ifdef LINE_ATTR
2186 line_attr == 0
2187# endif
2188 )
2189#endif
2190 {
2191 // In virtualedit, visual selections may extend
2192 // beyond end of line.
2193 if (area_highlighting && virtual_active()
2194 && tocol != MAXCOL && vcol < tocol)
2195 n_extra = 0;
2196 else
2197 {
2198 p_extra = at_end_str;
2199 n_extra = 1;
2200 c_extra = NUL;
2201 c_final = NUL;
2202 }
2203 }
2204 if (wp->w_p_list && lcs_eol > 0)
2205 c = lcs_eol;
2206 else
2207 c = ' ';
2208 lcs_eol_one = -1;
2209 --ptr; // put it back at the NUL
2210 if (!attr_pri)
2211 {
Bram Moolenaar42e931b2019-12-04 19:08:50 +01002212 extra_attr = hl_combine_attr(win_attr, HL_ATTR(HLF_AT));
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02002213 n_attr = 1;
2214 }
2215 mb_c = c;
2216 if (enc_utf8 && utf_char2len(c) > 1)
2217 {
2218 mb_utf8 = TRUE;
2219 u8cc[0] = 0;
2220 c = 0xc0;
2221 }
2222 else
2223 mb_utf8 = FALSE; // don't draw as UTF-8
2224 }
2225 else if (c != NUL)
2226 {
Bram Moolenaar32ee6272020-06-10 14:16:49 +02002227 p_extra = transchar_buf(wp->w_buffer, c);
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02002228 if (n_extra == 0)
2229 n_extra = byte2cells(c) - 1;
2230#ifdef FEAT_RIGHTLEFT
2231 if ((dy_flags & DY_UHEX) && wp->w_p_rl)
2232 rl_mirror(p_extra); // reverse "<12>"
2233#endif
2234 c_extra = NUL;
2235 c_final = NUL;
2236#ifdef FEAT_LINEBREAK
2237 if (wp->w_p_lbr)
2238 {
2239 char_u *p;
2240
2241 c = *p_extra;
2242 p = alloc(n_extra + 1);
2243 vim_memset(p, ' ', n_extra);
2244 STRNCPY(p, p_extra + 1, STRLEN(p_extra) - 1);
2245 p[n_extra] = NUL;
2246 vim_free(p_extra_free);
2247 p_extra_free = p_extra = p;
2248 }
2249 else
2250#endif
2251 {
2252 n_extra = byte2cells(c) - 1;
2253 c = *p_extra++;
2254 }
2255 if (!attr_pri)
2256 {
2257 n_attr = n_extra + 1;
Bram Moolenaar42e931b2019-12-04 19:08:50 +01002258 extra_attr = hl_combine_attr(win_attr, HL_ATTR(HLF_8));
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02002259 saved_attr2 = char_attr; // save current attr
2260 }
2261 mb_utf8 = FALSE; // don't draw as UTF-8
2262 }
2263 else if (VIsual_active
2264 && (VIsual_mode == Ctrl_V
2265 || VIsual_mode == 'v')
2266 && virtual_active()
2267 && tocol != MAXCOL
2268 && vcol < tocol
2269 && (
2270#ifdef FEAT_RIGHTLEFT
2271 wp->w_p_rl ? (col >= 0) :
2272#endif
2273 (col < wp->w_width)))
2274 {
2275 c = ' ';
2276 --ptr; // put it back at the NUL
2277 }
2278#if defined(LINE_ATTR)
2279 else if ((
2280# ifdef FEAT_DIFF
2281 diff_hlf != (hlf_T)0 ||
2282# endif
2283# ifdef FEAT_TERMINAL
2284 win_attr != 0 ||
2285# endif
2286 line_attr != 0
2287 ) && (
2288# ifdef FEAT_RIGHTLEFT
2289 wp->w_p_rl ? (col >= 0) :
2290# endif
2291 (col
2292# ifdef FEAT_CONCEAL
2293 - boguscols
2294# endif
2295 < wp->w_width)))
2296 {
2297 // Highlight until the right side of the window
2298 c = ' ';
2299 --ptr; // put it back at the NUL
2300
2301 // Remember we do the char for line highlighting.
2302 ++did_line_attr;
2303
2304 // don't do search HL for the rest of the line
2305 if (line_attr != 0 && char_attr == search_attr
2306 && (did_line_attr > 1
2307 || (wp->w_p_list && lcs_eol > 0)))
2308 char_attr = line_attr;
2309# ifdef FEAT_DIFF
2310 if (diff_hlf == HLF_TXD)
2311 {
2312 diff_hlf = HLF_CHD;
2313 if (vi_attr == 0 || char_attr != vi_attr)
2314 {
2315 char_attr = HL_ATTR(diff_hlf);
2316 if (wp->w_p_cul && lnum == wp->w_cursor.lnum
2317 && wp->w_p_culopt_flags != CULOPT_NBR
2318 && (!cul_screenline
2319 || (vcol >= left_curline_col
2320 && vcol <= right_curline_col)))
2321 char_attr = hl_combine_attr(
2322 char_attr, HL_ATTR(HLF_CUL));
2323 }
2324 }
2325# endif
2326# ifdef FEAT_TERMINAL
2327 if (win_attr != 0)
2328 {
2329 char_attr = win_attr;
Bram Moolenaara3817732019-10-16 16:31:44 +02002330 if (wp->w_p_cul && lnum == wp->w_cursor.lnum
2331 && wp->w_p_culopt_flags != CULOPT_NBR)
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02002332 {
2333 if (!cul_screenline || (vcol >= left_curline_col
2334 && vcol <= right_curline_col))
2335 char_attr = hl_combine_attr(
2336 char_attr, HL_ATTR(HLF_CUL));
2337 }
2338 else if (line_attr)
2339 char_attr = hl_combine_attr(char_attr, line_attr);
2340 }
2341# endif
2342 }
2343#endif
2344 }
2345
2346#ifdef FEAT_CONCEAL
2347 if ( wp->w_p_cole > 0
2348 && (wp != curwin || lnum != wp->w_cursor.lnum ||
2349 conceal_cursor_line(wp))
2350 && ((syntax_flags & HL_CONCEAL) != 0 || has_match_conc > 0)
2351 && !(lnum_in_visual_area
2352 && vim_strchr(wp->w_p_cocu, 'v') == NULL))
2353 {
2354 char_attr = conceal_attr;
2355 if ((prev_syntax_id != syntax_seqnr || has_match_conc > 1)
2356 && (syn_get_sub_char() != NUL || match_conc
2357 || wp->w_p_cole == 1)
2358 && wp->w_p_cole != 3)
2359 {
2360 // First time at this concealed item: display one
2361 // character.
2362 if (match_conc)
2363 c = match_conc;
2364 else if (syn_get_sub_char() != NUL)
2365 c = syn_get_sub_char();
2366 else if (lcs_conceal != NUL)
2367 c = lcs_conceal;
2368 else
2369 c = ' ';
2370
2371 prev_syntax_id = syntax_seqnr;
2372
2373 if (n_extra > 0)
2374 vcol_off += n_extra;
2375 vcol += n_extra;
2376 if (wp->w_p_wrap && n_extra > 0)
2377 {
2378# ifdef FEAT_RIGHTLEFT
2379 if (wp->w_p_rl)
2380 {
2381 col -= n_extra;
2382 boguscols -= n_extra;
2383 }
2384 else
2385# endif
2386 {
2387 boguscols += n_extra;
2388 col += n_extra;
2389 }
2390 }
2391 n_extra = 0;
2392 n_attr = 0;
2393 }
2394 else if (n_skip == 0)
2395 {
2396 is_concealing = TRUE;
2397 n_skip = 1;
2398 }
2399 mb_c = c;
2400 if (enc_utf8 && utf_char2len(c) > 1)
2401 {
2402 mb_utf8 = TRUE;
2403 u8cc[0] = 0;
2404 c = 0xc0;
2405 }
2406 else
2407 mb_utf8 = FALSE; // don't draw as UTF-8
2408 }
2409 else
2410 {
2411 prev_syntax_id = 0;
2412 is_concealing = FALSE;
2413 }
2414
2415 if (n_skip > 0 && did_decrement_ptr)
2416 // not showing the '>', put pointer back to avoid getting stuck
2417 ++ptr;
2418
2419#endif // FEAT_CONCEAL
2420 }
2421
2422#ifdef FEAT_CONCEAL
2423 // In the cursor line and we may be concealing characters: correct
2424 // the cursor column when we reach its position.
2425 if (!did_wcol && draw_state == WL_LINE
2426 && wp == curwin && lnum == wp->w_cursor.lnum
2427 && conceal_cursor_line(wp)
2428 && (int)wp->w_virtcol <= vcol + n_skip)
2429 {
2430# ifdef FEAT_RIGHTLEFT
2431 if (wp->w_p_rl)
2432 wp->w_wcol = wp->w_width - col + boguscols - 1;
2433 else
2434# endif
2435 wp->w_wcol = col - boguscols;
2436 wp->w_wrow = row;
2437 did_wcol = TRUE;
2438 curwin->w_valid |= VALID_WCOL|VALID_WROW|VALID_VIRTCOL;
2439 }
2440#endif
2441
2442 // Don't override visual selection highlighting.
2443 if (n_attr > 0
2444 && draw_state == WL_LINE
2445 && !attr_pri)
2446 {
2447#ifdef LINE_ATTR
2448 if (line_attr)
2449 char_attr = hl_combine_attr(extra_attr, line_attr);
2450 else
2451#endif
2452 char_attr = extra_attr;
2453 }
2454
2455#if defined(FEAT_XIM) && defined(FEAT_GUI_GTK)
2456 // XIM don't send preedit_start and preedit_end, but they send
2457 // preedit_changed and commit. Thus Vim can't set "im_is_active", use
2458 // im_is_preediting() here.
2459 if (p_imst == IM_ON_THE_SPOT
2460 && xic != NULL
2461 && lnum == wp->w_cursor.lnum
2462 && (State & INSERT)
2463 && !p_imdisable
2464 && im_is_preediting()
2465 && draw_state == WL_LINE)
2466 {
2467 colnr_T tcol;
2468
2469 if (preedit_end_col == MAXCOL)
2470 getvcol(curwin, &(wp->w_cursor), &tcol, NULL, NULL);
2471 else
2472 tcol = preedit_end_col;
2473 if ((long)preedit_start_col <= vcol && vcol < (long)tcol)
2474 {
2475 if (feedback_old_attr < 0)
2476 {
2477 feedback_col = 0;
2478 feedback_old_attr = char_attr;
2479 }
2480 char_attr = im_get_feedback_attr(feedback_col);
2481 if (char_attr < 0)
2482 char_attr = feedback_old_attr;
2483 feedback_col++;
2484 }
2485 else if (feedback_old_attr >= 0)
2486 {
2487 char_attr = feedback_old_attr;
2488 feedback_old_attr = -1;
2489 feedback_col = 0;
2490 }
2491 }
2492#endif
2493 // Handle the case where we are in column 0 but not on the first
2494 // character of the line and the user wants us to show us a
2495 // special character (via 'listchars' option "precedes:<char>".
2496 if (lcs_prec_todo != NUL
2497 && wp->w_p_list
Bram Moolenaarbffba7f2019-09-20 17:00:17 +02002498 && (wp->w_p_wrap ?
2499 (wp->w_skipcol > 0 && row == 0) :
2500 wp->w_leftcol > 0)
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02002501#ifdef FEAT_DIFF
2502 && filler_todo <= 0
2503#endif
2504 && draw_state > WL_NR
2505 && c != NUL)
2506 {
2507 c = lcs_prec;
2508 lcs_prec_todo = NUL;
2509 if (has_mbyte && (*mb_char2cells)(mb_c) > 1)
2510 {
2511 // Double-width character being overwritten by the "precedes"
2512 // character, need to fill up half the character.
2513 c_extra = MB_FILLER_CHAR;
2514 c_final = NUL;
2515 n_extra = 1;
2516 n_attr = 2;
Bram Moolenaar42e931b2019-12-04 19:08:50 +01002517 extra_attr = hl_combine_attr(win_attr, HL_ATTR(HLF_AT));
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02002518 }
2519 mb_c = c;
2520 if (enc_utf8 && utf_char2len(c) > 1)
2521 {
2522 mb_utf8 = TRUE;
2523 u8cc[0] = 0;
2524 c = 0xc0;
2525 }
2526 else
2527 mb_utf8 = FALSE; // don't draw as UTF-8
2528 if (!attr_pri)
2529 {
2530 saved_attr3 = char_attr; // save current attr
Bram Moolenaar42e931b2019-12-04 19:08:50 +01002531 char_attr = hl_combine_attr(win_attr, HL_ATTR(HLF_AT));
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02002532 n_attr3 = 1;
2533 }
2534 }
2535
2536 // At end of the text line or just after the last character.
2537 if ((c == NUL
2538#if defined(LINE_ATTR)
2539 || did_line_attr == 1
2540#endif
2541 ) && eol_hl_off == 0)
2542 {
2543#ifdef FEAT_SEARCH_EXTRA
2544 // flag to indicate whether prevcol equals startcol of search_hl or
2545 // one of the matches
2546 int prevcol_hl_flag = get_prevcol_hl_flag(wp, &screen_search_hl,
2547 (long)(ptr - line) - (c == NUL));
2548#endif
2549 // Invert at least one char, used for Visual and empty line or
2550 // highlight match at end of line. If it's beyond the last
2551 // char on the screen, just overwrite that one (tricky!) Not
2552 // needed when a '$' was displayed for 'list'.
2553 if (lcs_eol == lcs_eol_one
2554 && ((area_attr != 0 && vcol == fromcol
2555 && (VIsual_mode != Ctrl_V
2556 || lnum == VIsual.lnum
2557 || lnum == curwin->w_cursor.lnum)
2558 && c == NUL)
2559#ifdef FEAT_SEARCH_EXTRA
2560 // highlight 'hlsearch' match at end of line
2561 || (prevcol_hl_flag
2562# ifdef FEAT_SYN_HL
2563 && !(wp->w_p_cul && lnum == wp->w_cursor.lnum
2564 && !(wp == curwin && VIsual_active))
2565# endif
2566# ifdef FEAT_DIFF
2567 && diff_hlf == (hlf_T)0
2568# endif
2569# if defined(LINE_ATTR)
2570 && did_line_attr <= 1
2571# endif
2572 )
2573#endif
2574 ))
2575 {
2576 int n = 0;
2577
2578#ifdef FEAT_RIGHTLEFT
2579 if (wp->w_p_rl)
2580 {
2581 if (col < 0)
2582 n = 1;
2583 }
2584 else
2585#endif
2586 {
2587 if (col >= wp->w_width)
2588 n = -1;
2589 }
2590 if (n != 0)
2591 {
2592 // At the window boundary, highlight the last character
2593 // instead (better than nothing).
2594 off += n;
2595 col += n;
2596 }
2597 else
2598 {
2599 // Add a blank character to highlight.
2600 ScreenLines[off] = ' ';
2601 if (enc_utf8)
2602 ScreenLinesUC[off] = 0;
2603 }
2604#ifdef FEAT_SEARCH_EXTRA
2605 if (area_attr == 0)
2606 {
2607 // Use attributes from match with highest priority among
2608 // 'search_hl' and the match list.
2609 get_search_match_hl(wp, &screen_search_hl,
2610 (long)(ptr - line), &char_attr);
2611 }
2612#endif
2613 ScreenAttrs[off] = char_attr;
2614#ifdef FEAT_RIGHTLEFT
2615 if (wp->w_p_rl)
2616 {
2617 --col;
2618 --off;
2619 }
2620 else
2621#endif
2622 {
2623 ++col;
2624 ++off;
2625 }
2626 ++vcol;
2627 eol_hl_off = 1;
2628 }
2629 }
2630
2631 // At end of the text line.
2632 if (c == NUL)
2633 {
2634#ifdef FEAT_SYN_HL
2635 // Highlight 'cursorcolumn' & 'colorcolumn' past end of the line.
2636 if (wp->w_p_wrap)
2637 v = wp->w_skipcol;
2638 else
2639 v = wp->w_leftcol;
2640
2641 // check if line ends before left margin
2642 if (vcol < v + col - win_col_off(wp))
2643 vcol = v + col - win_col_off(wp);
2644#ifdef FEAT_CONCEAL
2645 // Get rid of the boguscols now, we want to draw until the right
2646 // edge for 'cursorcolumn'.
2647 col -= boguscols;
2648 boguscols = 0;
2649#endif
2650
2651 if (draw_color_col)
2652 draw_color_col = advance_color_col(VCOL_HLC, &color_cols);
2653
2654 if (((wp->w_p_cuc
2655 && (int)wp->w_virtcol >= VCOL_HLC - eol_hl_off
2656 && (int)wp->w_virtcol <
2657 wp->w_width * (row - startrow + 1) + v
2658 && lnum != wp->w_cursor.lnum)
2659 || draw_color_col
2660 || win_attr != 0)
2661# ifdef FEAT_RIGHTLEFT
2662 && !wp->w_p_rl
2663# endif
2664 )
2665 {
2666 int rightmost_vcol = 0;
2667 int i;
2668
2669 if (wp->w_p_cuc)
2670 rightmost_vcol = wp->w_virtcol;
2671 if (draw_color_col)
2672 // determine rightmost colorcolumn to possibly draw
2673 for (i = 0; color_cols[i] >= 0; ++i)
2674 if (rightmost_vcol < color_cols[i])
2675 rightmost_vcol = color_cols[i];
2676
2677 while (col < wp->w_width)
2678 {
2679 ScreenLines[off] = ' ';
2680 if (enc_utf8)
2681 ScreenLinesUC[off] = 0;
2682 ++col;
2683 if (draw_color_col)
2684 draw_color_col = advance_color_col(VCOL_HLC,
2685 &color_cols);
2686
2687 if (wp->w_p_cuc && VCOL_HLC == (long)wp->w_virtcol)
2688 ScreenAttrs[off++] = HL_ATTR(HLF_CUC);
2689 else if (draw_color_col && VCOL_HLC == *color_cols)
2690 ScreenAttrs[off++] = HL_ATTR(HLF_MC);
2691 else
2692 ScreenAttrs[off++] = win_attr;
2693
2694 if (VCOL_HLC >= rightmost_vcol && win_attr == 0)
2695 break;
2696
2697 ++vcol;
2698 }
2699 }
2700#endif
2701
2702 screen_line(screen_row, wp->w_wincol, col,
2703 (int)wp->w_width, screen_line_flags);
2704 row++;
2705
2706 // Update w_cline_height and w_cline_folded if the cursor line was
2707 // updated (saves a call to plines() later).
2708 if (wp == curwin && lnum == curwin->w_cursor.lnum)
2709 {
2710 curwin->w_cline_row = startrow;
2711 curwin->w_cline_height = row - startrow;
2712#ifdef FEAT_FOLDING
2713 curwin->w_cline_folded = FALSE;
2714#endif
2715 curwin->w_valid |= (VALID_CHEIGHT|VALID_CROW);
2716 }
2717
2718 break;
2719 }
2720
2721 // Show "extends" character from 'listchars' if beyond the line end and
2722 // 'list' is set.
2723 if (lcs_ext != NUL
2724 && wp->w_p_list
2725 && !wp->w_p_wrap
2726#ifdef FEAT_DIFF
2727 && filler_todo <= 0
2728#endif
2729 && (
2730#ifdef FEAT_RIGHTLEFT
2731 wp->w_p_rl ? col == 0 :
2732#endif
2733 col == wp->w_width - 1)
2734 && (*ptr != NUL
2735 || (wp->w_p_list && lcs_eol_one > 0)
2736 || (n_extra && (c_extra != NUL || *p_extra != NUL))))
2737 {
2738 c = lcs_ext;
Bram Moolenaar42e931b2019-12-04 19:08:50 +01002739 char_attr = hl_combine_attr(win_attr, HL_ATTR(HLF_AT));
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02002740 mb_c = c;
2741 if (enc_utf8 && utf_char2len(c) > 1)
2742 {
2743 mb_utf8 = TRUE;
2744 u8cc[0] = 0;
2745 c = 0xc0;
2746 }
2747 else
2748 mb_utf8 = FALSE;
2749 }
2750
2751#ifdef FEAT_SYN_HL
2752 // advance to the next 'colorcolumn'
2753 if (draw_color_col)
2754 draw_color_col = advance_color_col(VCOL_HLC, &color_cols);
2755
2756 // Highlight the cursor column if 'cursorcolumn' is set. But don't
2757 // highlight the cursor position itself.
2758 // Also highlight the 'colorcolumn' if it is different than
2759 // 'cursorcolumn'
2760 vcol_save_attr = -1;
2761 if (draw_state == WL_LINE && !lnum_in_visual_area
2762 && search_attr == 0 && area_attr == 0)
2763 {
2764 if (wp->w_p_cuc && VCOL_HLC == (long)wp->w_virtcol
2765 && lnum != wp->w_cursor.lnum)
2766 {
2767 vcol_save_attr = char_attr;
2768 char_attr = hl_combine_attr(char_attr, HL_ATTR(HLF_CUC));
2769 }
2770 else if (draw_color_col && VCOL_HLC == *color_cols)
2771 {
2772 vcol_save_attr = char_attr;
2773 char_attr = hl_combine_attr(char_attr, HL_ATTR(HLF_MC));
2774 }
2775 }
2776#endif
2777
2778 // Store character to be displayed.
2779 // Skip characters that are left of the screen for 'nowrap'.
2780 vcol_prev = vcol;
2781 if (draw_state < WL_LINE || n_skip <= 0)
2782 {
2783 // Store the character.
2784#if defined(FEAT_RIGHTLEFT)
2785 if (has_mbyte && wp->w_p_rl && (*mb_char2cells)(mb_c) > 1)
2786 {
2787 // A double-wide character is: put first halve in left cell.
2788 --off;
2789 --col;
2790 }
2791#endif
2792 ScreenLines[off] = c;
2793 if (enc_dbcs == DBCS_JPNU)
2794 {
2795 if ((mb_c & 0xff00) == 0x8e00)
2796 ScreenLines[off] = 0x8e;
2797 ScreenLines2[off] = mb_c & 0xff;
2798 }
2799 else if (enc_utf8)
2800 {
2801 if (mb_utf8)
2802 {
2803 int i;
2804
2805 ScreenLinesUC[off] = mb_c;
2806 if ((c & 0xff) == 0)
2807 ScreenLines[off] = 0x80; // avoid storing zero
2808 for (i = 0; i < Screen_mco; ++i)
2809 {
2810 ScreenLinesC[i][off] = u8cc[i];
2811 if (u8cc[i] == 0)
2812 break;
2813 }
2814 }
2815 else
2816 ScreenLinesUC[off] = 0;
2817 }
2818 if (multi_attr)
2819 {
2820 ScreenAttrs[off] = multi_attr;
2821 multi_attr = 0;
2822 }
2823 else
2824 ScreenAttrs[off] = char_attr;
2825
2826 if (has_mbyte && (*mb_char2cells)(mb_c) > 1)
2827 {
2828 // Need to fill two screen columns.
2829 ++off;
2830 ++col;
2831 if (enc_utf8)
2832 // UTF-8: Put a 0 in the second screen char.
2833 ScreenLines[off] = 0;
2834 else
2835 // DBCS: Put second byte in the second screen char.
2836 ScreenLines[off] = mb_c & 0xff;
2837 if (draw_state > WL_NR
2838#ifdef FEAT_DIFF
2839 && filler_todo <= 0
2840#endif
2841 )
2842 ++vcol;
2843 // When "tocol" is halfway a character, set it to the end of
2844 // the character, otherwise highlighting won't stop.
2845 if (tocol == vcol)
2846 ++tocol;
2847#ifdef FEAT_RIGHTLEFT
2848 if (wp->w_p_rl)
2849 {
2850 // now it's time to backup one cell
2851 --off;
2852 --col;
2853 }
2854#endif
2855 }
2856#ifdef FEAT_RIGHTLEFT
2857 if (wp->w_p_rl)
2858 {
2859 --off;
2860 --col;
2861 }
2862 else
2863#endif
2864 {
2865 ++off;
2866 ++col;
2867 }
2868 }
2869#ifdef FEAT_CONCEAL
2870 else if (wp->w_p_cole > 0 && is_concealing)
2871 {
2872 --n_skip;
2873 ++vcol_off;
2874 if (n_extra > 0)
2875 vcol_off += n_extra;
2876 if (wp->w_p_wrap)
2877 {
2878 // Special voodoo required if 'wrap' is on.
2879 //
2880 // Advance the column indicator to force the line
2881 // drawing to wrap early. This will make the line
2882 // take up the same screen space when parts are concealed,
2883 // so that cursor line computations aren't messed up.
2884 //
2885 // To avoid the fictitious advance of 'col' causing
2886 // trailing junk to be written out of the screen line
2887 // we are building, 'boguscols' keeps track of the number
2888 // of bad columns we have advanced.
2889 if (n_extra > 0)
2890 {
2891 vcol += n_extra;
2892# ifdef FEAT_RIGHTLEFT
2893 if (wp->w_p_rl)
2894 {
2895 col -= n_extra;
2896 boguscols -= n_extra;
2897 }
2898 else
2899# endif
2900 {
2901 col += n_extra;
2902 boguscols += n_extra;
2903 }
2904 n_extra = 0;
2905 n_attr = 0;
2906 }
2907
2908
2909 if (has_mbyte && (*mb_char2cells)(mb_c) > 1)
2910 {
2911 // Need to fill two screen columns.
2912# ifdef FEAT_RIGHTLEFT
2913 if (wp->w_p_rl)
2914 {
2915 --boguscols;
2916 --col;
2917 }
2918 else
2919# endif
2920 {
2921 ++boguscols;
2922 ++col;
2923 }
2924 }
2925
2926# ifdef FEAT_RIGHTLEFT
2927 if (wp->w_p_rl)
2928 {
2929 --boguscols;
2930 --col;
2931 }
2932 else
2933# endif
2934 {
2935 ++boguscols;
2936 ++col;
2937 }
2938 }
2939 else
2940 {
2941 if (n_extra > 0)
2942 {
2943 vcol += n_extra;
2944 n_extra = 0;
2945 n_attr = 0;
2946 }
2947 }
2948
2949 }
2950#endif // FEAT_CONCEAL
2951 else
2952 --n_skip;
2953
2954 // Only advance the "vcol" when after the 'number' or 'relativenumber'
2955 // column.
2956 if (draw_state > WL_NR
2957#ifdef FEAT_DIFF
2958 && filler_todo <= 0
2959#endif
2960 )
2961 ++vcol;
2962
2963#ifdef FEAT_SYN_HL
2964 if (vcol_save_attr >= 0)
2965 char_attr = vcol_save_attr;
2966#endif
2967
2968 // restore attributes after "predeces" in 'listchars'
2969 if (draw_state > WL_NR && n_attr3 > 0 && --n_attr3 == 0)
2970 char_attr = saved_attr3;
2971
2972 // restore attributes after last 'listchars' or 'number' char
2973 if (n_attr > 0 && draw_state == WL_LINE && --n_attr == 0)
2974 char_attr = saved_attr2;
2975
2976 // At end of screen line and there is more to come: Display the line
2977 // so far. If there is no more to display it is caught above.
2978 if ((
2979#ifdef FEAT_RIGHTLEFT
2980 wp->w_p_rl ? (col < 0) :
2981#endif
2982 (col >= wp->w_width))
2983 && (*ptr != NUL
2984#ifdef FEAT_DIFF
2985 || filler_todo > 0
2986#endif
2987 || (wp->w_p_list && lcs_eol != NUL && p_extra != at_end_str)
2988 || (n_extra != 0 && (c_extra != NUL || *p_extra != NUL)))
2989 )
2990 {
2991#ifdef FEAT_CONCEAL
2992 screen_line(screen_row, wp->w_wincol, col - boguscols,
2993 (int)wp->w_width, screen_line_flags);
2994 boguscols = 0;
2995#else
2996 screen_line(screen_row, wp->w_wincol, col,
2997 (int)wp->w_width, screen_line_flags);
2998#endif
2999 ++row;
3000 ++screen_row;
3001
3002 // When not wrapping and finished diff lines, or when displayed
3003 // '$' and highlighting until last column, break here.
3004 if ((!wp->w_p_wrap
3005#ifdef FEAT_DIFF
3006 && filler_todo <= 0
3007#endif
3008 ) || lcs_eol_one == -1)
3009 break;
3010
3011 // When the window is too narrow draw all "@" lines.
3012 if (draw_state != WL_LINE
3013#ifdef FEAT_DIFF
3014 && filler_todo <= 0
3015#endif
3016 )
3017 {
3018 win_draw_end(wp, '@', ' ', TRUE, row, wp->w_height, HLF_AT);
3019 draw_vsep_win(wp, row);
3020 row = endrow;
3021 }
3022
3023 // When line got too long for screen break here.
3024 if (row == endrow)
3025 {
3026 ++row;
3027 break;
3028 }
3029
3030 if (screen_cur_row == screen_row - 1
3031#ifdef FEAT_DIFF
3032 && filler_todo <= 0
3033#endif
3034 && wp->w_width == Columns)
3035 {
3036 // Remember that the line wraps, used for modeless copy.
3037 LineWraps[screen_row - 1] = TRUE;
3038
3039 // Special trick to make copy/paste of wrapped lines work with
3040 // xterm/screen: write an extra character beyond the end of
3041 // the line. This will work with all terminal types
3042 // (regardless of the xn,am settings).
3043 // Only do this on a fast tty.
3044 // Only do this if the cursor is on the current line
3045 // (something has been written in it).
3046 // Don't do this for the GUI.
3047 // Don't do this for double-width characters.
3048 // Don't do this for a window not at the right screen border.
3049 if (p_tf
3050#ifdef FEAT_GUI
3051 && !gui.in_use
3052#endif
3053 && !(has_mbyte
3054 && ((*mb_off2cells)(LineOffset[screen_row],
3055 LineOffset[screen_row] + screen_Columns)
3056 == 2
3057 || (*mb_off2cells)(LineOffset[screen_row - 1]
3058 + (int)Columns - 2,
3059 LineOffset[screen_row] + screen_Columns)
3060 == 2)))
3061 {
3062 // First make sure we are at the end of the screen line,
3063 // then output the same character again to let the
3064 // terminal know about the wrap. If the terminal doesn't
3065 // auto-wrap, we overwrite the character.
3066 if (screen_cur_col != wp->w_width)
3067 screen_char(LineOffset[screen_row - 1]
3068 + (unsigned)Columns - 1,
3069 screen_row - 1, (int)(Columns - 1));
3070
3071 // When there is a multi-byte character, just output a
3072 // space to keep it simple.
3073 if (has_mbyte && MB_BYTE2LEN(ScreenLines[LineOffset[
3074 screen_row - 1] + (Columns - 1)]) > 1)
3075 out_char(' ');
3076 else
3077 out_char(ScreenLines[LineOffset[screen_row - 1]
3078 + (Columns - 1)]);
3079 // force a redraw of the first char on the next line
3080 ScreenAttrs[LineOffset[screen_row]] = (sattr_T)-1;
3081 screen_start(); // don't know where cursor is now
3082 }
3083 }
3084
3085 col = 0;
3086 off = (unsigned)(current_ScreenLine - ScreenLines);
3087#ifdef FEAT_RIGHTLEFT
3088 if (wp->w_p_rl)
3089 {
3090 col = wp->w_width - 1; // col is not used if breaking!
3091 off += col;
3092 }
3093#endif
3094
3095 // reset the drawing state for the start of a wrapped line
3096 draw_state = WL_START;
3097 saved_n_extra = n_extra;
3098 saved_p_extra = p_extra;
3099 saved_c_extra = c_extra;
3100 saved_c_final = c_final;
3101#ifdef FEAT_SYN_HL
3102 if (!(cul_screenline
3103# ifdef FEAT_DIFF
Bram Moolenaare7705982020-04-21 22:23:15 +02003104 && diff_hlf == (hlf_T)0
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02003105# endif
Bram Moolenaare7705982020-04-21 22:23:15 +02003106 ))
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02003107 saved_char_attr = char_attr;
3108 else
3109#endif
3110 saved_char_attr = 0;
3111 n_extra = 0;
3112 lcs_prec_todo = lcs_prec;
3113#ifdef FEAT_LINEBREAK
3114# ifdef FEAT_DIFF
3115 if (filler_todo <= 0)
3116# endif
3117 need_showbreak = TRUE;
3118#endif
3119#ifdef FEAT_DIFF
3120 --filler_todo;
3121 // When the filler lines are actually below the last line of the
3122 // file, don't draw the line itself, break here.
3123 if (filler_todo == 0 && wp->w_botfill)
3124 break;
3125#endif
3126 }
3127
3128 } // for every character in the line
3129
3130#ifdef FEAT_SPELL
3131 // After an empty line check first word for capital.
3132 if (*skipwhite(line) == NUL)
3133 {
3134 capcol_lnum = lnum + 1;
3135 cap_col = 0;
3136 }
3137#endif
Bram Moolenaar05ad5ff2019-11-30 22:48:27 +01003138#ifdef FEAT_PROP_POPUP
Bram Moolenaar7528d1f2019-09-19 23:06:20 +02003139 vim_free(text_props);
3140 vim_free(text_prop_idxs);
3141#endif
3142
3143 vim_free(p_extra_free);
3144 return row;
3145}