tFix overtyping wide characters. - st - [fork] customized build of st, the simp… | |
git clone git://src.adamsgaard.dk/st | |
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--- | |
commit 65f1dc428315ae9d7f362e10c668557c1379e7af | |
parent a0467c802d4f86ed162486e3453dd61181423902 | |
Author: jamin <[email protected]> | |
Date: Wed, 29 Dec 2021 09:07:17 -0800 | |
Fix overtyping wide characters. | |
Overtyping the first half of a wide character with the | |
second half of a wide character results in display garbage. | |
This is because the trailing dummy is not cleaned up. | |
i.e. ATTR_WIDE, ATTR_WDUMMY, ATTR_WDUMMY | |
Here is a short script for demonstrating the behavior: | |
#!/bin/sh | |
alias printf=/usr/bin/printf | |
printf こんにちは!; sleep 2 | |
printf '\x1b[5D'; sleep 2 | |
printf へ; sleep 2 | |
printf ' '; sleep 2 | |
echo | |
Diffstat: | |
M st.c | 4 ++++ | |
1 file changed, 4 insertions(+), 0 deletions(-) | |
--- | |
diff --git a/st.c b/st.c | |
t@@ -2507,6 +2507,10 @@ check_control_code: | |
if (width == 2) { | |
gp->mode |= ATTR_WIDE; | |
if (term.c.x+1 < term.col) { | |
+ if (gp[1].mode == ATTR_WIDE && term.c.x+2 < term.col) { | |
+ gp[2].u = ' '; | |
+ gp[2].mode &= ~ATTR_WDUMMY; | |
+ } | |
gp[1].u = '\0'; | |
gp[1].mode = ATTR_WDUMMY; | |
} |