Fix overtyping wide characters. - st - simple terminal (HTM) git clone https://git.parazyd.org/st (DIR) Log (DIR) Files (DIR) Refs (DIR) README (DIR) LICENSE --- (DIR) commit 65f1dc428315ae9d7f362e10c668557c1379e7af (DIR) parent a0467c802d4f86ed162486e3453dd61181423902 (HTM) Author: jamin <acdimalev@gmail.com> 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(-) --- (DIR) diff --git a/st.c b/st.c @@ -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; }