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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 #4197)
This commit is contained in:
Bram Moolenaar
2019-04-04 13:28:45 +02:00
parent 39b76b7df8
commit e5e4e22c1c
3 changed files with 62 additions and 29 deletions
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48
src/screen.c
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@@ -4808,34 +4808,36 @@ win_line(
}
#endif
// 'list': change char 160 to lcs_nbsp and space to lcs_space.
if (wp->w_p_list)
// 'list': Change char 160 to lcs_nbsp and space to lcs_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))))
&& lcs_nbsp)
|| (c == ' '
&& mb_l == 1
&& lcs_space
&& ptr - line <= trailcol)))
{
if ((c == 160
|| (mb_utf8 && (mb_c == 160 || mb_c == 0x202f)))
&& lcs_nbsp)
c = (c == ' ') ? lcs_space : lcs_nbsp;
if (area_attr == 0 && search_attr == 0)
{
c = lcs_nbsp;
mb_c = c;
if (enc_utf8 && utf_char2len(c) > 1)
{
mb_utf8 = TRUE;
u8cc[0] = 0;
c = 0xc0;
}
else
mb_utf8 = FALSE;
n_attr = 1;
extra_attr = HL_ATTR(HLF_8);
saved_attr2 = char_attr; /* save current attr */
}
else if (c == ' ' && lcs_space && ptr - line <= trailcol)
mb_c = c;
if (enc_utf8 && utf_char2len(c) > 1)
{
c = lcs_space;
if (mb_utf8 == FALSE && area_attr == 0 && search_attr == 0)
{
n_attr = 1;
extra_attr = HL_ATTR(HLF_8);
saved_attr2 = char_attr; // save current attr
}
mb_utf8 = TRUE;
u8cc[0] = 0;
c = 0xc0;
}
else
mb_utf8 = FALSE;
}
if (trailcol != MAXCOL && ptr > line + trailcol && c == ' ')