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Add RMarkdown language extension#5530

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scfurl wants to merge 1 commit intozed-industries:mainfrom
scfurl:add-rmarkdown-extension
Open

Add RMarkdown language extension#5530
scfurl wants to merge 1 commit intozed-industries:mainfrom
scfurl:add-rmarkdown-extension

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@scfurl scfurl commented Apr 6, 2026

Summary

  • Adds R Markdown (.Rmd) language support for Zed
  • Provides Markdown syntax highlighting for .Rmd files using the existing markdown tree-sitter grammar
  • Injects R language highlighting into knitr-style ```{r} and ```{r, opts} code chunks
  • Supports YAML/TOML frontmatter and fenced code block background highlighting

Closes #1120

Extension repo

https://github.com/scfurl/rmarkdown

Adds R Markdown (.Rmd) support for Zed with:
- Markdown syntax highlighting for .Rmd files
- R language injection for knitr-style ```{r} code chunks
- YAML/TOML frontmatter injection
- Fenced code block background highlighting support

Closes zed-industries#1120

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Support for Rmd files - R markdown files

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