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strange behavior with tab[char] +line wrap + backspace in conhost/conpty #8839
Description
Environment
Windows build number: 10.0.19042.746
Windows Terminal version (if applicable):1.5.3242.0
Any other software?
Steps to reproduce
compile and run this simple code:
#include <stdio.h>
#include <stdlib.h>
int main(void)
{
scanf("%*s",NULL);
return 0;
}- then type [tab] + [any character]
- hold tab again until the cursor goes to next line
- hold backspace to delete all character's
Expected behavior
the character inserted gets removed
Actual behavior
it doesn't
Activity
j4james commentedon Jan 21, 2021
It's worth mentioning that this also happens when you start conhost in the legacy v1 mode, so I don't think it's a new bug.
zadjii-msft commentedon Jan 21, 2021
Oh wow this happens all the way back to v1? That's crazy. I'm sure there some horrifying thing that's happening in
WriteCharsLegacyto cause this.DHowett commentedon Jan 22, 2021
Since it's not a regression, I moved it into the console backlog. Some buffer changes are coming that might make this more or less bad. We'll evaluate.
We've been trying to reach you about your WriteCharsLegacy's extended…