The cursor position looks to be incorrect after output IVS ( Ideographic Variation Sequence : U+E0100 to U+E01EF)

[hymkor]

Environment

Windows build number: [run `[Environment]::OSVersion` for powershell, or `ver` for cmd]

• Win32NT 10.0.19041.0 Microsoft Windows NT 10.0.19041.0

Windows Terminal version (if applicable):

• 1.4.3243.0

Any other software?

• go1.15.6 windows/amd64 OR node.js v15.5.1

( I consider that any programming language program that supports Unicode(UTF8) can reproduce the behaviour. )

Steps to reproduce

By Golang, execute go run sample.go

// sample.go
package main

import (
	"fmt"
)

func main() {
	fmt.Print("[\u908A\U000E0104]\n")
	fmt.Print("[\u908A\U000E0104")
	fmt.Print("]\n")
	fmt.Print("[ABCD")
	fmt.Print("]\n")
}

Or, on node.js 's command line , execute as below

process.stdout.write("[\u908A\u{E0104}]\n")
process.stdout.write("[\u908A\u{E0104}") ; process.stdout.write("]\n")
process.stdout.write("[ABCD") ; process.stdout.write("]\n")

Expected behavior

I expect that these text are output as below.

[邊󠄄]
[邊󠄄]
[ABCD]

The first line and the second line are same and no blank(space) exist anywhere.
The third line exists to show that the print/write function does not insert any blank.

Actual behavior

The cursor position after output IVS( Ideographic Variation Sequence : U+E0100 to U+E01EF) seems to be incorrect

[邊󠄄]
[邊󠄄 ]
[ABCD]

Would you please confirm the behaviour above ?

[skyline75489]

I think this is covered in #3546. The Unicode support is not complete yet.

[zadjii-msft]

I'm inclined to agree. Thanks @skyline75489!

/dup #3546

[ghost]

Hi! We've identified this issue as a duplicate of another one that already exists on this Issue Tracker. This specific instance is being closed in favor of tracking the concern over on the referenced thread. Thanks for your report!