From 8c03efbfc097426de105997bbe6ea814f4ac5aed Mon Sep 17 00:00:00 2001
From: Patrick <patrick@maschek.info>
Date: Thu, 18 Sep 2025 16:52:33 +0200
Subject: [PATCH] implemented email format check

---
 src/lib/util.ts | 13 +++++++++++++
 1 file changed, 13 insertions(+)
 create mode 100644 src/lib/util.ts

diff --git a/src/lib/util.ts b/src/lib/util.ts
new file mode 100644
index 0000000..b6600fa
--- /dev/null
+++ b/src/lib/util.ts
@@ -0,0 +1,13 @@
+
+function check_email_format(email: string) {
+	const trimmed = email.trim()
+
+	if (trimmed.length > 254) return false
+
+	const emailRegex = /^[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+@[a-zA-Z0-9-]+(?:.[a-zA-Z0-9-]+)*$/;
+	return emailRegex.test(trimmed)
+}
+
+export default {
+	check_email_format,
+}