[GH-ISSUE #4931] [Bug] Markdown Italic Formatting Issue with Underscores #2196

New issue

Open

opened 2026-03-23 21:20:30 +00:00 by mirror · 1 comment

mirror commented

2026-03-23 21:20:30 +00:00

Owner

Originally created by @nchj on GitHub (Mar 18, 2024).
Original GitHub issue: https://github.com/AppFlowy-IO/AppFlowy/issues/4931

Bug Description

When typing text containing two underscores (_) in the project documentation or markdown files, the text is automatically formatted as italic, even when the intention is to display the underscores literally. This occurs for text patterns like X_Y,Y_Z, where the text between underscores is rendered in italic, which is a common markdown syntax. However, the current markdown renderer in the software behave wired when typing \ to eacepe the _

How to Reproduce

just type "X_Y,Y_Z" in appflowy, Y,YZ will become italic,
X_Y,Y_Z

type "X\_Y,Y\_Z" is work
work well

but if add more _ and _ in one line ,it is really wired behaviour,for example, i type this:

app floyw will render like this

the more \_ and _ you typed in a line, you will find the more strange the behaviour is

Expected Behavior

for the last example ,it should render like this

Operating System

macos verntura

AppFlowy Version(s)

0.5.2

Screenshots

No response

Additional Context

No response

Originally created by @nchj on GitHub (Mar 18, 2024). Original GitHub issue: https://github.com/AppFlowy-IO/AppFlowy/issues/4931 ### Bug Description When typing text containing two underscores (`_`) in the project documentation or markdown files, the text is automatically formatted as italic, even when the intention is to display the underscores literally. This occurs for text patterns like `X_Y,Y_Z`, where the text between underscores is rendered in italic, which is a common markdown syntax. However, the current markdown renderer in the software behave wired when typing `\` to eacepe the `_` ### How to Reproduce just type "X_Y,Y_Z" in appflowy, Y,YZ will become italic, <img width="69" alt="X_Y,Y_Z" src="https://github.com/AppFlowy-IO/AppFlowy/assets/28175310/7fe3282d-1218-408b-9e1a-fb616639bf2f"> type "X\\_Y,Y\\_Z" is work <img width="123" alt="work well" src="https://github.com/AppFlowy-IO/AppFlowy/assets/28175310/1fb20abb-714d-4bcc-a9b6-b6ccd9001637"> but if add more _ and _ in one line ,it is really wired behaviour,for example, i type this: <img width="214" alt="图片" src="https://github.com/AppFlowy-IO/AppFlowy/assets/28175310/94e16a51-b234-405f-a435-252e51c62940"> app floyw will render like this <img width="137" alt="图片" src="https://github.com/AppFlowy-IO/AppFlowy/assets/28175310/08a4313f-09af-4872-b562-12b720ccf3e8"> the more `\_` and `_` you typed in a line, you will find the more strange the behaviour is ### Expected Behavior for the last example ,it should render like this <img width="151" alt="图片" src="https://github.com/AppFlowy-IO/AppFlowy/assets/28175310/89d7d090-5bc3-4542-bd32-b326a190c6ad"> ### Operating System macos verntura ### AppFlowy Version(s) 0.5.2 ### Screenshots _No response_ ### Additional Context _No response_

mirror added the

bug

editor

labels

2026-03-23 21:20:30 +00:00

mirror commented

2026-03-23 21:20:31 +00:00

Author

Owner

@LucasXu0 commented on GitHub (Nov 21, 2025):

https://discord.com/channels/903549834160635914/903553722804748309/1441210846847172618

A suggestion: if the text before the underscore is not a whitespace, the automatic italics should be disabled.

@LucasXu0 commented on GitHub (Nov 21, 2025): https://discord.com/channels/903549834160635914/903553722804748309/1441210846847172618 A suggestion: if the text before the underscore is not a whitespace, the automatic italics should be disabled.

mirror referenced this issue

2026-03-23 22:18:51 +00:00

[PR #2898] [MERGED] Inline page reference #2196 #5464

mirror referenced this issue

2026-03-23 22:20:54 +00:00

[PR #3859] [MERGED] feat: inline page reference #5917