[vim/vim] runtime/syntax/rmd.vim: code blocks mishighlighted (Issue #21328)

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Ivan Krasilnikov

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Sep 16, 2026, 9:55:43 PM (2 days ago) Sep 16

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ivankra created an issue (vim/vim#21328)

Steps to reproduce

.qmd or .Rmd file with a non-executable code block:

text

```sh
code
```

text

Expected behaviour

Highlighting breaks at the code block's terminating ```

Version of Vim

9.2.1116

Environment

all

Logs and stack traces

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Ivan Krasilnikov

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Sep 16, 2026, 10:02:13 PM (2 days ago) Sep 16

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ivankra left a comment (vim/vim#21328)

There's a typo at rmd.vim:137 - missing escape in .+.

I also suggest fixing the regexp for end= there to highlight code blocks with an indent (e.g. in lists)

Patch:

--- a/runtime/syntax/rmd.vim
+++ b/runtime/syntax/rmd.vim
@@ -134,7 +134,7 @@ endif
 " Step_3: Highlight code blocks.
 
 syn region rmdCodeBlock matchgroup=rmdCodeDelim start="^\s*```\s*{.*}$" matchgroup=rmdCodeDelim end="^\s*```\ze\s*$" keepend
-syn region rmdCodeBlock matchgroup=rmdCodeDelim start="^\s*```.+$" matchgroup=rmdCodeDelim end="^```$" keepend
+syn region rmdCodeBlock matchgroup=rmdCodeDelim start="^\s*```.*$" matchgroup=rmdCodeDelim end="^\s*```\ze\s*$" keepend
 hi link rmdCodeBlock Special
 
 " Now highlight chunks: