vscode/extensions/r/language-configuration.json

{
	"comments": {
		"lineComment": "#"
	},
	"brackets": [
		["{", "}"],
		["[", "]"],
		["(", ")"]
	],
	"autoClosingPairs": [
		["{", "}"],
		["[", "]"],
		["(", ")"],
		["`", "`"],
		{ "open": "\"", "close": "\"", "notIn": ["string"] },
		{ "open": "'", "close": "'", "notIn": ["string", "comment"] },
		{ "open": "%", "close": "%", "notIn": ["string", "comment"] }
	],
	"surroundingPairs": [
		["{", "}"],
		["[", "]"],
		["(", ")"],
		["`", "`"],
		["\"", "\""],
		["'", "'"]
	]
}