starred/terminal
1
0
Fork 0
mirror of https://github.com/microsoft/terminal.git synced 2026-02-04 05:35:20 +00:00
Code Issues 19.0k Packages Projects Releases 20 Wiki Activity

Additional space inserted at char 100 when a single-width emoji preceeds it #952

New Issue
Closed
opened 2026-01-30 22:12:14 +00:00 by claunia · 1 comment
claunia commented 2026-01-30 22:12:14 +00:00
Owner
Copy Link

Originally created by @ritchiehughes on GitHub (May 10, 2019).

  • Your Windows build number: (Type ver at a Windows Command Prompt)
    Microsoft Windows [Version 10.0.18362.53]
    Windows Terminal appx download from GitHub: 0.1.1211.0

  • What you're doing and what's happening:

Ran a simple .NET Core 2.1 application (below) that outputs various UTF-8 emojis. Bug is that when a single-width (?) emoji is printed ("Computer Mouse"), the output includes an extra 'space' later on at character position 100. No issue when it's double-width ("Computer Disk"), :

image

  • What's wrong / what should be happening instead:

Text following the single-width emoji should not be modified or respaced.

Code sample (using Unicode.NET package from NuGet)

using NeoSmart.Unicode;
using System;
using System.Text;

namespace DetectWindowsTerminal
{
    class Program
    {
        static void Main(string[] args)
        {
            string a  = "ABCDEFGHIJKLMNOPQRSTUVWZYZ ";
            Console.OutputEncoding = Encoding.UTF8;

            Console.WriteLine($"123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_");
            Console.WriteLine($"--------10--------20--------30--------40--------50--------60--------70--------80--------90-------100");
            Console.WriteLine($"{a}{a}{a}[{Emoji.ComputerMouse.ToString()}]{a}{a}");
            Console.WriteLine($"{a}{a}{a}[{Emoji.ComputerDisk.ToString()}]{a}{a}");
            Console.ReadLine();
        }
    }
}
Originally created by @ritchiehughes on GitHub (May 10, 2019). * Your Windows build number: (Type `ver` at a Windows Command Prompt) **Microsoft Windows [Version 10.0.18362.53]** **Windows Terminal appx download from GitHub: 0.1.1211.0** * What you're doing and what's happening: Ran a simple .NET Core 2.1 application (below) that outputs various UTF-8 emojis. Bug is that when a single-width (?) emoji is printed ("Computer Mouse"), the output includes an extra 'space' later on at **character position 100**. No issue when it's double-width ("Computer Disk"), : ![image](https://user-images.githubusercontent.com/18265132/57545713-73c1c980-7318-11e9-9f51-078e6cf73085.png) * What's wrong / what should be happening instead: Text following the single-width emoji should not be modified or respaced. **Code sample (using Unicode.NET package from NuGet)** ```csharp using NeoSmart.Unicode; using System; using System.Text; namespace DetectWindowsTerminal { class Program { static void Main(string[] args) { string a = "ABCDEFGHIJKLMNOPQRSTUVWZYZ "; Console.OutputEncoding = Encoding.UTF8; Console.WriteLine($"123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_"); Console.WriteLine($"--------10--------20--------30--------40--------50--------60--------70--------80--------90-------100"); Console.WriteLine($"{a}{a}{a}[{Emoji.ComputerMouse.ToString()}]{a}{a}"); Console.WriteLine($"{a}{a}{a}[{Emoji.ComputerDisk.ToString()}]{a}{a}"); Console.ReadLine(); } } } ```
claunia commented 2026-01-30 22:12:15 +00:00
Author
Owner
Copy Link

@DHowett-MSFT commented on GitHub (Aug 28, 2019):

This is a couple issues. One is probably #2066 (disagreement between conpty and windows terminal about glyph width). The other is #1472 -- the Computer Mouse emoji is actually two codepoints that combine, and we, being simple and cell-based, don't understand these two codepoints to be a single grapheme cluster.

@DHowett-MSFT commented on GitHub (Aug 28, 2019): This is a couple issues. One is probably #2066 (disagreement between conpty and windows terminal about glyph width). The other is #1472 -- the Computer Mouse emoji is actually two codepoints that combine, and we, being simple and cell-based, don't understand these two codepoints to be a _single_ grapheme cluster.
Sign in to join this conversation.
No Branch/Tag Specified
Branches Tags
Labels
Clear labels
⛺ Reserved
A11yCO
A11yMAS
A11ySev1
A11ySev2
A11ySev3
A11yTTValidated
A11yUsable
A11yVoiceAccess
A11yWCAG
Area-Accessibility
Area-AtlasEngine
Area-AzureShell
Area-Build
Area-Build
Area-Chat
Area-CmdPal
Area-CodeHealth
Area-Commandline
Area-CookedRead
Area-DefApp
Area-Extensibility
Area-Fonts
Area-GroupPolicy
Area-i18n
Area-Input
Area-Interaction
Area-Interop
Area-Localization
Area-Output
Area-Performance
Area-Portable
Area-Quality
Area-Remoting
Area-Rendering
Area-Schema
Area-Server
Area-Settings
Area-SettingsUI
Area-ShellExtension
Area-ShellExtension
Area-ShellExtension
Area-Suggestions
Area-Suggestions
Area-TerminalConnection
Area-TerminalControl
Area-Theming
Area-UserInterface
Area-VT
Area-Windowing
Area-WPFControl
AutoMerge
Blocking-Ingestion
Culprit-Centennial
Culprit-WinUI
Disability-All
Disability-Blind
Disability-LowVision
Disability-Mobility
External-Blocked-WinUI3
Fixed
Gathering-Data
good first issue
HCL-E+D
HCL-WindowsTerminal
Help Wanted
Impact-Compatibility
Impact-Compliance
Impact-Correctness
Impact-Visual
In-PR
InclusionBacklog
InclusionBacklog-Windows TerminalWin32
InclusionCommitted-202206
Issue-Bug
Issue-Docs
Issue-Feature
Issue-Feature
Issue-Question
Issue-Samples
Issue-Scenario
Issue-Task
Needs-Attention
Needs-Author-Feedback
Needs-Bisect
Needs-Discussion
Needs-Repro
Needs-Tag-Fix
Needs-Tag-Fix
Needs-Triage
No-Recent-Activity
Priority-0
Priority-1
Priority-2
Priority-3
Product-Cmd.exe
Product-Colortool
Product-Colortool
Product-Colortool
Product-Conhost
Product-Conpty
Product-Meta
Product-Powershell
Product-Terminal
Product-WSL
pull-request
Mirrored from GitHub Pull Request
 Resolution-Answered
Resolution-By-Design
Resolution-Duplicate
Resolution-External
Resolution-Fix-Available
Resolution-Fix-Committed
Resolution-No-Repro
Resolution-Won't-Fix
Severity-Blocking
Severity-Crash
Severity-DataLoss
spam
this-will-be-a-breaking-change
Tracking-External
WindowsTerminal_Win32
Work-Item
zAskModeBug
zInbox-Bug
No Label Area-Output Issue-Bug Needs-Tag-Fix Product-Conhost Product-Terminal Resolution-Duplicate
Milestone
No items
No Milestone
Projects
Clear projects
No project
Assignees
Clear assignees
claunia
No Assignees
1 Participants
Notifications
Due Date
No due date set.
Dependencies

No dependencies set.

Reference: starred/terminal#952
Delete Branch "%!s()"

Deleting a branch is permanent. Although the deleted branch may continue to exist for a short time before it actually gets removed, it CANNOT be undone in most cases. Continue?