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Add capitalized .R extension to R #289658

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Merged
Martin Aeschlimann (aeschli) merged 2 commits into from
Jan 22, 2026
Merged

Add capitalized .R extension to R #289658

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cd215cc
Add capitalized .R extension to R
aeschli Jan 22, 2026
e7c89f2
Merge branch 'main' into aeschli/ruling-mongoose-903
aeschli Jan 22, 2026
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6 changes: 3 additions & 3 deletions extensions/r/package.json
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Original file line number Diff line number Diff line change
Expand Up @@ -17,9 +17,9 @@
{
"id": "r",
"extensions": [
".r",
".rhistory",
".rprofile",
".R",
".Rhistory",
".Rprofile",
Comment on lines +20 to +22

Copilot AI Jan 22, 2026

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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",

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".rt"
],
"aliases": [
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