Font Ligatures Can Connect With Current Path #4499

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opened 2026-01-30 23:49:11 +00:00 by claunia · 2 comments
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Originally created by @chiefklondog on GitHub (Oct 16, 2019).

Environment

Windows build number: Microsoft Windows [Version 10.0.18362.356]  
Windows Terminal version (if applicable): Version: 0.5.2762.0

Steps to reproduce

Switch to a font that contains ligatures that effect the '>' character. (In my case I used Fira Code)
Type a character such as '=' on a fresh line and it will combine in with the text that you are normally unable to edit
image

Expected behavior

Not sure how impactful this really is but my expectation would be that the user would be unable to effect the current location text since they are unable to edit it as normal text

Actual behavior

The user typed character is being combined into the location text modifying the normally un-editable text

Originally created by @chiefklondog on GitHub (Oct 16, 2019). <!-- 🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨 I ACKNOWLEDGE THE FOLLOWING BEFORE PROCEEDING: 1. If I delete this entire template and go my own path, the core team may close my issue without further explanation or engagement. 2. If I list multiple bugs/concerns in this one issue, the core team may close my issue without further explanation or engagement. 3. If I write an issue that has many duplicates, the core team may close my issue without further explanation or engagement (and without necessarily spending time to find the exact duplicate ID number). 4. If I leave the title incomplete when filing the issue, the core team may close my issue without further explanation or engagement. 5. If I file something completely blank in the body, the core team may close my issue without further explanation or engagement. All good? Then proceed! --> <!-- This bug tracker is monitored by Windows Terminal development team and other technical folks. **Important: When reporting BSODs or security issues, DO NOT attach memory dumps, logs, or traces to Github issues**. Instead, send dumps/traces to secure@microsoft.com, referencing this GitHub issue. If this is an application crash, please also provide a Feedback Hub submission link so we can find your diagnostic data on the backend. Use the category "Apps > Windows Terminal (Preview)" and choose "Share My Feedback" after submission to get the link. Please use this form and describe your issue, concisely but precisely, with as much detail as possible. --> # Environment ```none Windows build number: Microsoft Windows [Version 10.0.18362.356] Windows Terminal version (if applicable): Version: 0.5.2762.0 ``` # Steps to reproduce Switch to a font that contains ligatures that effect the '>' character. (In my case I used Fira Code) Type a character such as '=' on a fresh line and it will combine in with the text that you are normally unable to edit ![image](https://user-images.githubusercontent.com/30984107/66928192-dca71f00-efe5-11e9-8c00-00313dc70580.png) # Expected behavior Not sure how impactful this really is but my expectation would be that the user would be unable to effect the current location text since they are unable to edit it as normal text # Actual behavior The user typed character is being combined into the location text modifying the normally un-editable text
claunia added the Resolution-Duplicate label 2026-01-30 23:49:11 +00:00
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@DHowett-MSFT commented on GitHub (Oct 16, 2019):

/dup #757 but in the general case, since a terminal is just a grid of characters, we can't know not to ligate two things.

In general, user input and shell output are actually both generated by the shell (powershell reads a key, prints it to the screen). Because of that, we can't actually ever know whether a given piece of data was user-generated or shell-generated.

@DHowett-MSFT commented on GitHub (Oct 16, 2019): /dup #757 but in the general case, since a terminal is just a grid of characters, we _can't know not to ligate two things_. In general, user input _and_ shell output are actually both generated by the shell (powershell reads a key, prints it to the screen). Because of that, we can't actually ever know whether a given piece of data was user-generated or shell-generated.
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@ghost commented on GitHub (Oct 16, 2019):

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!

@ghost commented on GitHub (Oct 16, 2019): 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!
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Reference: starred/terminal#4499