1 files changed, 33 insertions, 0 deletions
diff --git a/devtools/client/netmonitor/src/components/messages/parsers/signalr/TextMessageFormat.js b/devtools/client/netmonitor/src/components/messages/parsers/signalr/TextMessageFormat.js
new file mode 100644
index 0000000000..a9ec58ee36
--- /dev/null
+++ b/devtools/client/netmonitor/src/components/messages/parsers/signalr/TextMessageFormat.js
@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) .NET Foundation. All rights reserved.
+ *
+ * This source code is licensed under the Apache License, Version 2.0,
+ * found in the LICENSE.txt file in the root directory of the library
+ * source tree.
+ *
+ * https://github.com/aspnet/AspNetCore
+ */
+
+"use strict";
+
+Object.defineProperty(exports, "__esModule", { value: true });
+// Not exported from index
+/** @private */
+class TextMessageFormat {
+  static write(output) {
+    return `${output}${TextMessageFormat.RecordSeparator}`;
+  }
+  static parse(input) {
+    if (input[input.length - 1] !== TextMessageFormat.RecordSeparator) {
+      throw new Error("Message is incomplete.");
+    }
+    const messages = input.split(TextMessageFormat.RecordSeparator);
+    messages.pop();
+    return messages;
+  }
+}
+exports.TextMessageFormat = TextMessageFormat;
+TextMessageFormat.RecordSeparatorCode = 0x1e;
+TextMessageFormat.RecordSeparator = String.fromCharCode(
+  TextMessageFormat.RecordSeparatorCode
+);