Update to VS Code 1.52.1

lib/vscode/src/vs/base/common/strings.ts

@@ -69,6 +69,14 @@ export function count(value: string, character: string): number {
 	return result;
 }
 
+export function truncate(value: string, maxLength: number, suffix = '…'): string {
+	if (value.length <= maxLength) {
+		return value;
+	}
+
+	return `${value.substr(0, maxLength)}${suffix}`;
+}
+
 /**
  * Removes all occurrences of needle from the beginning and end of haystack.
  * @param haystack string to trim
@@ -208,6 +216,10 @@ export function regExpFlags(regexp: RegExp): string {
 		+ ((regexp as any /* standalone editor compilation */).unicode ? 'u' : '');
 }
 
+export function splitLines(str: string): string[] {
+	return str.split(/\r\n|\r|\n/);
+}
+
 /**
  * Returns first index of the string that is not whitespace.
  * If string is empty or contains only whitespaces, returns -1
@@ -879,9 +891,15 @@ export function getNLines(str: string, n = 1): string {
 		n--;
 	} while (n > 0 && idx >= 0);
 
-	return idx >= 0 ?
-		str.substr(0, idx) :
-		str;
+	if (idx === -1) {
+		return str;
+	}
+
+	if (str[idx - 1] === '\r') {
+		idx--;
+	}
+
+	return str.substr(0, idx);
 }
 
 /**