How to edit the 'Ignore Patron Barcode' REGEX code for TBS Portal

NOTE: Any change made requires the TBS ILS SERVICE to be restarted.

By default, we have the following examples in the TBS Portal:

Numberical Only:

patronBarcode=^[0-9]{1,}\z

Alphanumeric Only:

patronBarcode=^[A-Za-z0-9]{1,}\z

Standard Ascii:

patronBarcode=^[\x00-\x7B]{1,}\z

If you want to take it one step further, use CHATGPT to ask "how to creat a regex for XXXXXXX"

For example, I want numeric-only cards plus a 'computer-only' card that starts with PACREG. Here is what I got:

QUESTION: 

How to I create a regex for numeric only, but also allow pacreg and case-insensitive?

ANSWER:

To create a case-insensitive regex that allows only numeric values or the word "PACREG" (in any case), use the following regex:

(?i)^pacreg$|^\d+$

Breakdown:

1. (?i) → Case-Insensitive Flag

   • Makes "PACREG" case-insensitive, allowing "PACREG", "pacreg", "PacReg", etc.

2. ^pacreg$

   • ^ → Ensures the match starts at the beginning of the string.
   • pacreg → Matches the exact word "pacreg" (case-insensitive).
   • $ → Ensures the match ends at the end of the string.
   • Matches: ✅ "PACREG", "pacreg", "PaCrEg"

3. | → OR Condition

   • Separates the two valid patterns:
     • Pattern 1: "PACREG" (case-insensitive)
     • Pattern 2: Only numbers

4. ^\d+$

   • ^ → Ensures the match starts at the beginning of the string.
   • \d+ → Matches one or more numeric digits (0-9).
   • $ → Ensures the match ends at the end of the string.
   • Matches: ✅ "123", "45678", "0"

What This Regex Allows:

✅ "PACREG"
✅ "pacreg"
✅ "PaCrEg"
✅ "123"
✅ "4567"

What It Doesn't Allow:

❌ "ABC" (not "PACREG" and not numeric)
❌ "pacreg123" (numbers not allowed after "PACREG")
❌ "pacreg 123" (space not allowed)
❌ "12pacreg34" (letters in between numbers)