From: jamin <acdimalev@gmail.com>
Date: Wed, 29 Dec 2021 17:07:17 +0000 (-0800)
Subject: Fix overtyping wide characters.
X-Git-Url: https://git.xinqibao.xyz/st.git/commitdiff_plain/65f1dc428315ae9d7f362e10c668557c1379e7af?ds=sidebyside;hp=65f1dc428315ae9d7f362e10c668557c1379e7af

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
---