Project cannot be build and if so tests do not pass for regional settings with decimal separators ","

[matopeto]

Hi @Qata after you resolve #4. I cannot build the project:

Just downloaded code from github, opened Packgage.swift in Xcode 13.2.1 and ran the build.

I got errors:

Then I temporary change iOS target from .v8 to .v10 in (to "resolve") the compatibility of .iso8601 value), then i run the tests on (iPhone 11 pro simulator with iOS 15.2 on Xcode 13.2.1 they fails:

They pass OK for region US, but fails for region "Czechia" (maybe problem with decimal/grouping separator)

I tried to replace all Decimal(string: ) initializer with Decimal(string:, locale: Locale(identifier: "en_US") because, json numbers are coded with "." as decimal separator but it not works. Still crash at the same place.

PS: i think you should use Decimal(string: locale:) instead of Decimal(string:) because apple documentations says:

https://developer.apple.com/documentation/foundation/nsdecimalnumber/1409902-init (it is for NSDecimalNumber but i think it applies for Decimal as well)

Discussion
Don’t use this initializer if numericString has a fractional part, since the lack of a locale makes handling the decimal separator ambiguous. The separator is a period in some locales (like in the United States) and a comma in others (such as France).
To parse a numeric string with a fractional part, use init(string:locale:) instead. When working with numeric representations with a known format, pass a fixed locale to ensure consistent results independent of the user’s current device settings.