NAME

CLDR::Number - Localized number formatters using the Unicode CLDR

VERSION

This document describes CLDR::Number v0.19, built with Unicode CLDR v29.

SYNOPSIS

use CLDR::Number;

# new object with 'es' (Spanish) locale
$cldr = CLDR::Number->new(locale => 'es');

# decimals
$decf = $cldr->decimal_formatter;

# when locale is 'es' (Spanish)
say $decf->format(1234.5);  # '1234,5'

# when locale is 'es-MX' (Mexican Spanish)
say $decf->format(1234.5);  # '1,234.5'

# when locale is 'ar' (Arabic)
say $decf->format(1234.5);  # '١٬٢٣٤٫٥'

# percents
$perf = $cldr->percent_formatter;

# when locale is 'tr' (Turkish)
say $perf->format(0.05);  # '%5'

# currencies
$curf = $cldr->currency_formatter(currency_code => 'USD');

# when locale is 'en' (English) and currency is USD (US dollars)
say $curf->format(9.99);  # '$9.99'

# when locale is 'en-CA' (Canadian English) and currency is USD
say $curf->format(9.99);  # 'US$9.99'

# when locale is 'fr-CA' (Canadian French) and currency is USD
say $curf->format(9.99);  # '9,99 $ US'

DEPRECATION

Using the locale method as a setter is deprecated. In the future the object’s locale will become immutable. Please see issue #38 for details and to submit comments or concerns.

DESCRIPTION

Software localization includes much more than just translations. Numbers, prices, and even percents should all be localized based on the user’s language, script, and region. Fortunately, the Unicode Common Locale Data Repository (CLDR) provides locale data and specifications for formatting numeric data to use with many of the world’s locales.

This class provides common attributes shared among the supported formatter classes as well as methods to instantiate decimal, percent, and currency formatter objects. The value for any attribute (such as locale or decimal_sign) will be passed to the formatter objects on instantiation but can be overwritten by manually passing another value for the attribute or calling a setter method on the formatter object.

Methods

• decimal_formatter

  Returns a decimal formatter, which is a CLDR::Number::Format::Decimal object instantiated with all of the attributes from your CLDR::Number object as well as any attributes passed to this method.

• percent_formatter

  Returns a percent formatter, which is a CLDR::Number::Format::Percent object instantiated with all of the attributes from your CLDR::Number object as well as any attributes passed to this method.

• currency_formatter

  Returns a currency formatter, which is a CLDR::Number::Format::Currency object instantiated with all of the attributes from your CLDR::Number object as well as any attributes passed to this method.

Common Attributes

These are common attributes among this class and all formatter classes. All attributes other than locale, default_locale, and cldr_version have defaults that change depending on the current locale. All string attributes are expected to be character strings, not byte strings.

• locale

  Default: value of default_locale attribute if it exists, otherwise root

  Valid: Unicode locale identifiers

  Examples: es (Spanish), es-ES (European Spanish), es-419 (Latin American Spanish), zh-Hant (Traditional Chinese), zh-Hans (Simplified Chinese), chr (Cherokee)

  The locale is case-insensitive and can use either - (hyphen-minus) or _ (low line) as a separator.

• default_locale

  Default: none

  Valid: Unicode locale identifiers

  Use this if you want a locale other than the generic root if the locale attribute is not set or not valid.

• numbering_system

  Valid: currently only decimal numbering systems are supported

  Examples: latn (Western Digits), arab (Arabic-Indic Digits), hanidec (Chinese Decimal Numerals), fullwide (Full Width Digits)

  In the future, algorithmic numbering systems like hant (Traditional Chinese Numerals), hebr (Hebrew Numerals), and roman (Roman Numerals) will be supported.

  The numbering system may alternately be provided as a Unicode locale extension subtag. For example, locale ja-u-nu-fullwide for the Japanese language (ja) with the numbering system (nu) set to Full Width Digits (fullwide).

• decimal_sign

  Examples: . (full stop) for root, en; , (comma) for de, fr

• group_sign

  Examples: , (comma) for root, en; . (full stop) for de;   (no-break space) for fr

• plus_sign

  Examples: + (plus sign) for root, en, and most locales

• minus_sign

  Examples: - (hyphen-minus) for root, en, and most locales

• infinity

  Examples: ∞ (infinity) for root, en, and almost all locales

• nan

  Examples: NaN for root, en, and most locales; many other variations for individual locales like не число for ru and 非數值 for zh-Hant

• cldr_version

  Value: 29

  This is a read-only attribute that will always reflect the currently supported Unicode CLDR version.

NOTES

The Unicode private-use characters U+F8F0 through U+F8F4 are used internally and are therefore not supported in custom patterns and signs.

SEE ALSO

• CLDR::Number::FAQ
• CLDR::Number::TODO
• Unicode beyond just characters: Localization with the CLDR (video and slides)
• Perl Advent Calendar: CLDR TL;DR
• UTS #35: Unicode LDML, Part 3: Numbers
• CLDR Translation Guidelines: Number Patterns
• CLDR Translation Guidelines: Number Symbols

AUTHOR

Nova Patch <[email protected]>

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COPYRIGHT AND LICENSE

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This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

Unicode is a registered trademark of Unicode, Inc., in the United States and other countries.