Add capitalized .R extension to R#289658
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Pull request overview
This pull request aims to change the default R file extension from lowercase .r to uppercase .R to align with R source code conventions, R IDEs (RStudio, Positron), and the Tidyverse Style Guide.
Changes:
- Updates the R language extension configuration to use capitalized file extensions (.R, .Rhistory, .Rprofile)
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| ".R", | ||
| ".Rhistory", | ||
| ".Rprofile", |
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The change completely removes support for lowercase file extensions (.r, .rhistory, .rprofile). While .R should be the default/preferred extension (first in the list), the lowercase variants should still be supported for backward compatibility. Many existing R files use lowercase extensions and would lose language support with this change. The extensions array should include both uppercase and lowercase versions, with .R listed first to make it the default.
Suggested change
| ".R", | |
| ".Rhistory", | |
| ".Rprofile", | |
| ".R", | |
| ".r", | |
| ".Rhistory", | |
| ".rhistory", | |
| ".Rprofile", | |
| ".rprofile", |
alexr00
approved these changes
Jan 22, 2026
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fixes #284740