GreyCat Finance Library

@library("finance", "0.0.0");

Financial utilities for GreyCat. Provides IBAN (International Bank Account Number) parsing and validation according to the ISO 13616 standard.

Quick Start

var iban = Iban::parse("FR76 3000 6000 0112 3456 7890 189");
if (iban != null) {
    info("Country: ${iban.country}");   // "FR"
    info("Bank: ${iban.bank}");         // bank identifier
    info("Account: ${iban.account}");   // account number
    info("Full IBAN: ${iban.iban}");     // normalized IBAN string
} else {
    info("Invalid IBAN");
}

API Reference

Iban

Represents a parsed and validated International Bank Account Number.

Static Methods:

Fields:

Validation

Iban::parse performs full validation:

• Format and length checks per country
• Mod-97 check digit verification (ISO 7064)
• Country-specific BBAN structure validation

Invalid or malformed strings return null.

// Valid IBAN
var valid = Iban::parse("DE89370400440532013000");
Assert::isNotNull(valid);

// Invalid check digits → null
var invalid = Iban::parse("DE00370400440532013000");
Assert::isNull(invalid);