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9 validated value objects: CurrencyCode (ISO 4217), Money, Iban (mod-97), Bic (8/11-char SWIFT), VatNumber (EU prefixes), Percentage (0-100 f64), ExchangeRate, CreditCardNumber (Luhn, masked display), CardExpiryDate (MM/YY). Closes #21, #22, #23, #24, #25, #26, #28, #29, #30 Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
codegresscom
approved these changes
Apr 21, 2026
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Summary
financefeature module with 9 validated value objectsCurrencyCode— ISO 4217 alpha-3, static lookup of ~170 active codesMoney—Decimalamount +CurrencyCode, output:"10.50 EUR"Iban— strips spaces, mod-97 checksum, accessors:country_code(),check_digits(),bban()Bic— 8 or 11-char SWIFT code, structural validation, accessors:bank_code(),country_code(),location_code(),branch_code()VatNumber— EU country prefix validation (28 prefixes), 2–13 alphanumeric suffixPercentage—f64in0.0..=100.0, finite checkExchangeRate— positiveDecimal,from ≠ to, output:"EUR/USD 1.0850"CreditCardNumber— Luhn validation, maskedDisplay(**** **** **** 0366),last_four()CardExpiryDate—MM/YYorMM/YYYYinput, rejected if expired, accessors:month(),year()finance = ["dep:rust_decimal", "dep:chrono"]feature toCargo.tomlfinancetofullfeaturedocs/finance.mdreference documentationROADMAP.mdandREADME.mdCloses #21
Closes #22
Closes #23
Closes #24
Closes #25
Closes #26
Closes #28
Closes #29
Closes #30
Type of change
Checklist
ValueObjecttrait (new/value/into_inner)TryFrom<&str>(simple types)Displayserdecfg_attrcargo fmt+ clippy cleanROADMAP.mdupdatedREADME.mdupdateddocs/finance.mdcreated