From bf5e4569962dcabe0b90f2386160433f238e391f Mon Sep 17 00:00:00 2001
From: Pragatheeswaran Sorna Rajan <pragatheeswaran.sornarajan@clark.de>
Date: Tue, 20 Jun 2023 15:02:40 +0200
Subject: [PATCH] Fix for passing dot as splitcharacter to RegExp constructor

---
 src/TextInputMask.tsx | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/TextInputMask.tsx b/src/TextInputMask.tsx
index 925be662..53c6d430 100644
--- a/src/TextInputMask.tsx
+++ b/src/TextInputMask.tsx
@@ -7,6 +7,10 @@ function detectCharacter(mask: string): string {
   return c || ''
 }
 
+function escapeForRegExp(value: string): string {
+  return value.replace(/[.*+?^${}()|[\]\\]/g, '\\$&')
+}
+
 function TextInputWithMask(
   {
     onChangeText,
@@ -40,7 +44,7 @@ function TextInputWithMask(
     )
     const replaceValue = format.match(/\W/)
     const replace = `$1${splitCharacter}$2${splitCharacter}$3$4`.replace(
-      new RegExp(splitCharacter, 'g'),
+      new RegExp(escapeForRegExp(splitCharacter), 'g'),
       (replaceValue ?? '') as string
     )