fix(regexp): env var for index

.env.example

@@ -7,6 +7,7 @@ DOMAIN=localhost
 ORIGIN=http://localhost:3000
 DATABASE_URL=postgres://root:mysecretpassword@localhost:5432/local
 SECRET=changemeplsbutwith32charsbecauseyes
+PUBLIC_INDEX_REGEX="^\d{1,4}[a-zA-Z]?\/(?:\d{2}|\d{4})$"
 
 POSTGRES_USER=root
 POSTGRES_PASSWORD=mysecretpassword

src/lib/utils/regexp.ts

@@ -1,13 +1,17 @@
+import { env } from '$env/dynamic/public';
+
 export const nameRegExp = /^[a-zA-ZčČćĆdžDŽđĐšŠžŽ]+(?:(?:\s|-)[a-zA-ZčČćĆdžDŽđĐšŠžŽ]+)?$/;
-export const nameRegExpMsg = 'String must be 1-2 word(s) seperated by space or dash (-)';
+export const nameRegExpMsg = 'String must be 1 or 2 word seperated by space or dash (-)';
 
-export const indexRegExp = /^\d{1,4}[a-zA-Z]?\/(?:\d{2}|\d{4})(?:[A-Z]{1,3})?$/;
+export const indexRegExp = new RegExp(
+	env.PUBLIC_INDEX_REGEX ?? /^\d{1,4}[a-zA-Z]?\/(?:\d{2}|\d{4})$/
+);
 export const indexRegExpMsg = 'String must follow Student ID format';
 
 export const uppercaseRegExp = /^[A-Z0-9_\-+/\\|]*$/;
 export const uppercaseRegExpMsg =
-	'String can consist of uppercase letters, numbers, and symbols (_, -, +, /, \, |)';
+	'String can consist of uppercase letters, numbers, and symbols (_, -, +, /, \\, |)';
 
 export const lowercaseRegExp = /^[a-z0-9_\-+/\\|]*$/;
 export const lowercaseRegExpMsg =
-	'String can consist of lowercase letters, numbers, and symbols (_, -, +, /, \, |)';
+	'String can consist of lowercase letters, numbers, and symbols (_, -, +, /, \\, |)';