NAME
CLDR::Number::FAQ - FAQ for CLDR::Number
VERSION
This document describes CLDR::Number v0.14, built with Unicode CLDR v28.
FAQ
- What’s the status of this project?
-
CLDR::Number is a stable project used for over a year in production by Shutterstock on www.shutterstock.com for formatting numbers, percents, and prices in twenty languages, ten currencies, and myriad countries. It is also used by other projects on the CPAN.
- How do I set precision?
-
The attributes
minimum_fraction_digits
andmaximum_fraction_digits
can be used. If you always want a specific number of fraction digits, also known as precision, set both of these attributes to the same number. - How do I remove cents?
-
When displaying whole monetary numbers, it is sometimes desired to leave off the fraction digits (e.g. cents) for marketing purposes. To do this, set the
maximum_fraction_digits
attribute to0
. Beware though that some currencies have a number of fraction digits other than two, so it is not safe to setminimum_fraction_digits
andmaximum_fraction_digits
to2
for arbitrary currencies. - How do I set a default currency?
-
CLDR::Number::Format::Currency does not provide a default currency for the
currency_code
attribute like we have for thelocale
attribute nor does it provide a default_currency_code attribute like thedefault_locale
attribute. This is because a price without a known currency has no known value. Setting a default currency is just as inaccurate as setting a default number. If your application depends on a default currency, thecurrency_code
attribute can be explicitly set.“Note: Currency values should never be interchanged without a known currency code. You never want the number 3.5 interpreted as $3.50 by one user and €3.50 by another. Locale data contains localization information for currencies, not a currency value for a country. A currency amount logically consists of a numeric value, plus an accompanying currency code (or equivalent).” —Unicode Technical Standard #35
- How do I format years?
-
Years are a type of date, and dates have very different formatting rules than regular numbers. Resources for localized date/time formatting include DateTime, DateTime::Locale, and UTS #35: Unicode LDML, Part 4: Dates.