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vim-patch:8.1.1110: composing chars on space wrong when 'listchars' is set

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Problem:    Composing chars on space wrong when 'listchars' is set.
Solution:   Do not use "space" and "nbsp" entries of 'listchars' when there is
            a composing character.  (Yee Cheng Chin, closes vim/vim#4197)
e5e4e22c1c
This commit is contained in:
zeertzjq
2021-09-19 13:13:44 +08:00
parent c14dc616bf
commit 59e80c4dfc
2 changed files with 60 additions and 29 deletions
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48
src/nvim/screen.c
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@@ -3580,29 +3580,31 @@ static int win_line(win_T *wp, linenr_T lnum, int startrow, int endrow, bool noc
}
}
// 'list': change char 160 to 'nbsp' and space to 'space'.
if (wp->w_p_list) {
if ((c == 160 || (mb_utf8 && (mb_c == 160 || mb_c == 0x202f)))
&& wp->w_p_lcs_chars.nbsp) {
c = wp->w_p_lcs_chars.nbsp;
mb_c = c;
if (utf_char2len(c) > 1) {
mb_utf8 = true;
u8cc[0] = 0;
c = 0xc0;
} else {
mb_utf8 = false;
}
} else if (c == ' '
&& wp->w_p_lcs_chars.space
&& ptr - line >= leadcol
&& ptr - line <= trailcol) {
c = wp->w_p_lcs_chars.space;
if (mb_utf8 == false) {
n_attr = 1;
extra_attr = win_hl_attr(wp, HLF_0);
saved_attr2 = char_attr; // save current attr
}
// 'list': Change char 160 to 'nbsp' and space to 'space'.
// But not when the character is followed by a composing
// character (use mb_l to check that).
if (wp->w_p_list
&& ((((c == 160 && mb_l == 1)
|| (mb_utf8
&& ((mb_c == 160 && mb_l == 2)
|| (mb_c == 0x202f && mb_l == 3))))
&& wp->w_p_lcs_chars.nbsp)
|| (c == ' '
&& mb_l == 1
&& wp->w_p_lcs_chars.space
&& ptr - line >= leadcol
&& ptr - line <= trailcol))) {
c = (c == ' ') ? wp->w_p_lcs_chars.space : wp->w_p_lcs_chars.nbsp;
n_attr = 1;
extra_attr = win_hl_attr(wp, HLF_0);
saved_attr2 = char_attr; // save current attr
mb_c = c;
if (utf_char2len(c) > 1) {
mb_utf8 = true;
u8cc[0] = 0;
c = 0xc0;
} else {
mb_utf8 = false;
}
}