Check newlines in conditions before replacing

ArmaanMcleod · ArmaanMcleod · commit 139a77807c63 · 2025-04-19T22:40:46.000+10:00
diff --git a/src/System.Management.Automation/engine/CommandCompletion/CompletionHelpers.cs b/src/System.Management.Automation/engine/CommandCompletion/CompletionHelpers.cs
@@ -62,7 +62,19 @@ internal static IEnumerable<CompletionResult> GetMatchingResults(
         /// <param name="wordToComplete">The word to complete.</param>
         /// <returns>The normalized word with escaped newlines replaced.</returns>
         internal static string NormalizeLineEndings(string wordToComplete)
-            => wordToComplete.Replace("\r", "`r").Replace("\n", "`n");
+        {
+            if (wordToComplete.Contains('\r'))
+            {
+                wordToComplete = wordToComplete.Replace("\r", "`r");
+            }
+
+            if (wordToComplete.Contains('\n'))
+            {
+                wordToComplete = wordToComplete.Replace("\n", "`n");
+            }
+
+            return wordToComplete;
+        }
 
         /// <summary>
         /// Defines a strategy for determining if a value matches a word or pattern.
