chore: import upstream snapshot with attribution

extensions/cpp/language-configuration.json

@@ -0,0 +1,132 @@
+{
+	"comments": {
+		"lineComment": "//",
+		"blockComment": [
+			"/*",
+			"*/"
+		]
+	},
+	"brackets": [
+		[
+			"{",
+			"}"
+		],
+		[
+			"[",
+			"]"
+		],
+		[
+			"(",
+			")"
+		]
+	],
+	"autoClosingPairs": [
+		{
+			"open": "[",
+			"close": "]"
+		},
+		{
+			"open": "{",
+			"close": "}"
+		},
+		{
+			"open": "(",
+			"close": ")"
+		},
+		{
+			"open": "'",
+			"close": "'",
+			"notIn": [
+				"string",
+				"comment"
+			]
+		},
+		{
+			"open": "\"",
+			"close": "\"",
+			"notIn": [
+				"string"
+			]
+		},
+		{
+			"open": "/*",
+			"close": "*/",
+			"notIn": [
+				"string",
+				"comment"
+			]
+		},
+		{
+			"open": "/**",
+			"close": " */",
+			"notIn": [
+				"string"
+			]
+		}
+	],
+	"surroundingPairs": [
+		[
+			"{",
+			"}"
+		],
+		[
+			"[",
+			"]"
+		],
+		[
+			"(",
+			")"
+		],
+		[
+			"\"",
+			"\""
+		],
+		[
+			"'",
+			"'"
+		],
+		[
+			"<",
+			">"
+		]
+	],
+	"wordPattern": "(-?\\d*\\.\\d\\w*)|([^\\`\\~\\!\\@\\#\\%\\^\\&\\*\\(\\)\\-\\=\\+\\[\\{\\]\\}\\\\\\|\\;\\:\\'\\\"\\,\\.\\<\\>\\/\\?\\s]+)",
+	"folding": {
+		"markers": {
+			"start": "^\\s*#pragma\\s+region\\b",
+			"end": "^\\s*#pragma\\s+endregion\\b"
+		}
+	},
+	"indentationRules": {
+		"decreaseIndentPattern": {
+			"pattern": "^\\s*[\\}\\]\\)].*$"
+		},
+		"increaseIndentPattern": {
+			"pattern": "^.*(\\{[^}]*|\\([^)]*|\\[[^\\]]*)$"
+		},
+	},
+	"onEnterRules": [
+		{
+			// Decrease indentation after single line if/else if/else, for, or while
+			"previousLineText": "^\\s*(((else ?)?if|for|while)\\s*\\(.*\\)\\s*|else\\s*)$",
+			// But make sure line doesn't have braces or is not another if statement
+			"beforeText": "^\\s+([^{i\\s]|i(?!f\\b))",
+			"action": {
+				"indent": "outdent"
+			}
+		},
+		// Add // when pressing enter from inside line comment
+		{
+			"beforeText": {
+				"pattern": "\/\/.*"
+			},
+			"afterText": {
+				"pattern": "^(?!\\s*$).+"
+			},
+			"action": {
+				"indent": "none",
+				"appendText": "// "
+			}
+		},
+	]
+}