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Upstream update 3a6d6d740110e6ee1b092d05ad746244eedabe4b 

Author: Shi Tian <shitian@cock.li>
Date:   Sun Jun 25 05:38:33 2023 +0000

    Fix for wide character being incorrectly cleared on MODE_INSERT

    Under insert mode, when inserting a normal character in front of
    a wide character, the affected region is shifted to the right by
    one cell. However, the empty cell is reset as if being a part of a
    wide character, causing the following cell being mishandled as a
    dummy cell.
    To reproduce the bug:
            printf '\033[4h' # set MODE_INSERT
            printf 妳好
            printf '\033[4D'
            printf 'x'
            printf '\033[4l\n'
This commit is contained in:
Ashish Kumar Yadav 2023-07-06 04:57:05 +05:30
parent e4964975fa
commit 1237b32777
1 changed files with 3 additions and 1 deletions
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4
st/st.c
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@ -2886,8 +2886,10 @@ check_control_code:
gp = &term.line[term.c.y][term.c.x];
}
if (IS_SET(MODE_INSERT) && term.c.x+width < term.col)
if (IS_SET(MODE_INSERT) && term.c.x+width < term.col) {
memmove(gp+width, gp, (term.col - term.c.x - width) * sizeof(Glyph));
gp->mode &= ~ATTR_WIDE;
}
if (term.c.x+width > term.col) {
tnewline(1);