[GH-ISSUE #404] Text ending in a hash-character incorrectly detected as closed heading #334

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opened 2026-03-03 01:25:49 +03:00 by kerem · 3 comments

kerem commented

2026-03-03 01:25:49 +03:00

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Originally created by @mtausig on GitHub (Jun 7, 2021).
Original GitHub issue: https://github.com/DavidAnson/markdownlint/issues/404

I have a document with some code snippets, one of them being C#:

# Main

## Samples

### Java

foo

### C#

bar

The problem is, that this triggers rules MD003 and MD020 because the validator believes that I am trying to use a closed heading style in the last heading.

Demo sample: https://dlaa.me/markdownlint/#%25m%23%20Main%0A%0A%23%23%20Samples%0A%0A%23%23%23%20Java%0A%0Afoo%0A%0A%23%23%23%20C%23%0A%0Abar%0A

Originally created by @mtausig on GitHub (Jun 7, 2021). Original GitHub issue: https://github.com/DavidAnson/markdownlint/issues/404 I have a document with some code snippets, one of them being `C#`: ``` # Main ## Samples ### Java foo ### C# bar ``` The problem is, that this triggers rules MD003 and MD020 because the validator believes that I am trying to use a closed heading style in the last heading. Demo sample: https://dlaa.me/markdownlint/#%25m%23%20Main%0A%0A%23%23%20Samples%0A%0A%23%23%23%20Java%0A%0Afoo%0A%0A%23%23%23%20C%23%0A%0Abar%0A

kerem

2026-03-03 01:25:49 +03:00

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kerem commented

2026-03-03 01:25:50 +03:00

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@nschonni commented on GitHub (Jun 7, 2021):

Yes, you need to escape the trailing # as ### C\#

@nschonni commented on GitHub (Jun 7, 2021): Yes, you need to escape the trailing `#` as `### C\#`

kerem commented

2026-03-03 01:25:50 +03:00

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@DavidAnson commented on GitHub (Jun 7, 2021):

Agreed. Here's your sample with that change: https://dlaa.me/markdownlint/#%25m%23%20Main%0A%0A%23%23%20Samples%0A%0A%23%23%23%20Java%0A%0Afoo%0A%0A%23%23%23%20C%5C%23%0A%0Abar%0A

@DavidAnson commented on GitHub (Jun 7, 2021): Agreed. Here's your sample with that change: https://dlaa.me/markdownlint/#%25m%23%20Main%0A%0A%23%23%20Samples%0A%0A%23%23%23%20Java%0A%0Afoo%0A%0A%23%23%23%20C%5C%23%0A%0Abar%0A

kerem commented

2026-03-03 01:25:50 +03:00

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@mtausig commented on GitHub (Jun 7, 2021):

Thank you. Didn't know that.

@mtausig commented on GitHub (Jun 7, 2021): Thank you. Didn't know that.

kerem referenced this issue

2026-03-03 01:30:25 +03:00

[PR #334] [CLOSED] Initialize GitHub code scanning workflow. #841

kerem referenced this issue

2026-03-07 20:10:06 +03:00