From 4812e7cc6c446ca9ec25f64d687d83bde99b5316 Mon Sep 17 00:00:00 2001
From: Danny Avila <danny@librechat.ai>
Date: Thu, 30 Jan 2025 16:21:53 -0500
Subject: [PATCH] chore: add back escapeRegExp helper function for regex
 special character handling

---
 api/server/utils/handleText.js | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/api/server/utils/handleText.js b/api/server/utils/handleText.js
index 6cef72385bb..e46584c805b 100644
--- a/api/server/utils/handleText.js
+++ b/api/server/utils/handleText.js
@@ -13,6 +13,14 @@ const { Providers } = require('@librechat/agents');
 const partialRight = require('lodash/partialRight');
 const { sendMessage } = require('./streamResponse');
 
+/** Helper function to escape special characters in regex
+ * @param {string} string - The string to escape.
+ * @returns {string} The escaped string.
+ */
+function escapeRegExp(string) {
+  return string.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
+}
+
 const addSpaceIfNeeded = (text) => (text.length > 0 && !text.endsWith(' ') ? text + ' ' : text);
 
 const base = { message: true, initial: true };
@@ -251,6 +259,7 @@ module.exports = {
   isEnabled,
   handleText,
   formatSteps,
+  escapeRegExp,
   formatAction,
   isUserProvided,
   generateConfig,