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-rw-r--r--src/nvim/screen.c55
1 files changed, 30 insertions, 25 deletions
diff --git a/src/nvim/screen.c b/src/nvim/screen.c
index ab726dfdb0..6a8792b7b6 100644
--- a/src/nvim/screen.c
+++ b/src/nvim/screen.c
@@ -3720,41 +3720,46 @@ static int win_line(win_T *wp, linenr_T lnum, int startrow, int endrow, bool noc
tab_len += n_extra - tab_len;
}
- // if n_extra > 0, it gives the number of chars
+ // If n_extra > 0, it gives the number of chars
// to use for a tab, else we need to calculate the width
- // for a tab
+ // for a tab.
int len = (tab_len * utf_char2len(wp->w_p_lcs_chars.tab2));
+ if (wp->w_p_lcs_chars.tab3) {
+ len += utf_char2len(wp->w_p_lcs_chars.tab3);
+ }
if (n_extra > 0) {
len += n_extra - tab_len;
}
c = wp->w_p_lcs_chars.tab1;
p = xmalloc(len + 1);
- memset(p, ' ', len);
- p[len] = NUL;
- xfree(p_extra_free);
- p_extra_free = p;
- for (i = 0; i < tab_len; i++) {
- if (*p == NUL) {
- tab_len = i;
- break;
- }
- int lcs = wp->w_p_lcs_chars.tab2;
+ if (p == NULL) {
+ n_extra = 0;
+ } else {
+ memset(p, ' ', len);
+ p[len] = NUL;
+ xfree(p_extra_free);
+ p_extra_free = p;
+ for (i = 0; i < tab_len; i++) {
+ if (*p == NUL) {
+ tab_len = i;
+ break;
+ }
+ int lcs = wp->w_p_lcs_chars.tab2;
- // if tab3 is given, need to change the char
- // for tab
- if (wp->w_p_lcs_chars.tab3 && i == tab_len - 1) {
- lcs = wp->w_p_lcs_chars.tab3;
+ // if tab3 is given, use it for the last char
+ if (wp->w_p_lcs_chars.tab3 && i == tab_len - 1) {
+ lcs = wp->w_p_lcs_chars.tab3;
+ }
+ p += utf_char2bytes(lcs, p);
+ n_extra += utf_char2len(lcs) - (saved_nextra > 0 ? 1 : 0);
}
- utf_char2bytes(lcs, p);
- p += utf_char2len(lcs);
- n_extra += utf_char2len(lcs) - (saved_nextra > 0 ? 1 : 0);
- }
- p_extra = p_extra_free;
+ p_extra = p_extra_free;
- // n_extra will be increased by FIX_FOX_BOGUSCOLS
- // macro below, so need to adjust for that here
- if (vcol_off > 0) {
- n_extra -= vcol_off;
+ // n_extra will be increased by FIX_FOX_BOGUSCOLS
+ // macro below, so need to adjust for that here
+ if (vcol_off > 0) {
+ n_extra -= vcol_off;
+ }
}
}