# Cldr v2.47.2 - Table of Contents Common Locale Data Repository (CLDR) functions for Elixir to localize and format numbers, dates, lists, messages, languages, territories and units with support for over 700 locales for internationalized (i18n) and localized (L10N) applications. ## Pages - [Getting Started with Cldr](readme.md) - [License](license.md) - [Changelog](changelog.md) ## Modules - [Cldr](Cldr.md): Cldr provides the core functions to retrieve and manage the CLDR data that supports formatting and localisation. - [Cldr.AcceptLanguage](Cldr.AcceptLanguage.md): Tokenizer and parser for HTTP `Accept-Language` header values as defined in [rfc2616](https://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.4). - [Cldr.Rfc5646.Parser](Cldr.Rfc5646.Parser.md): Implements parsing for [RFC5646](https://datatracker.ietf.org/doc/html/rfc5646) language tags with [BCP47](https://tools.ietf.org/search/bcp47) extensions. - Language Tag - [Cldr.LanguageTag](Cldr.LanguageTag.md): Represents a language tag as defined in [rfc5646](https://tools.ietf.org/html/rfc5646) with extensions "u" and "t" as defined in [BCP 47](https://tools.ietf.org/html/bcp47). - [Cldr.LanguageTag.ParseError](Cldr.LanguageTag.ParseError.md): Exception raised when a language tag cannot be parsed (there is unparsed content). - [Cldr.LanguageTag.Parser](Cldr.LanguageTag.Parser.md): Parses a CLDR language tag (also referred to as locale string). - [Cldr.LanguageTag.Sigil](Cldr.LanguageTag.Sigil.md): Implements a `sigil_l/2` macro to constructing `t:Cldr.LanguageTag` structs. - [Cldr.LanguageTag.T](Cldr.LanguageTag.T.md): Defines the struct for the BCP 47 `t` extension. - [Cldr.LanguageTag.U](Cldr.LanguageTag.U.md): Defines the struct for the BCP 47 `u` extension. - [Cldr.Locale](Cldr.Locale.md): Functions to parse and normalize locale names into a structure locale represented by a `Cldr.LanguageTag`. - [Cldr.Locale.Loader](Cldr.Locale.Loader.md): Provides a public interface to read the raw JSON locale files and return the CLDR data in a consistent format. - [Cldr.Locale.Match](Cldr.Locale.Match.md): Implements the [CLDR language matching algorithm](https://www.unicode.org/reports/tr35/tr35.html#LanguageMatching). - Plural Rules - [Cldr.Number.PluralRule](Cldr.Number.PluralRule.md): Defines the plural rule implementation modules. The functions in this module generate code to implement the plural rules of CLDR. - Protocols - [Cldr.Chars](Cldr.Chars.md): The `Cldr.Chars` protocol mirrors the `String.Chars` protocol but localises the output. It is intended to be drop-in replacement for `String.Chars`. - [Cldr.DisplayName](Cldr.DisplayName.md): Returns the localised display name for a CLDR struct (locale, unit, currency) - Gettext - [Cldr.Gettext.Plural](Cldr.Gettext.Plural.md): Implements a macro to define a CLDR-based Gettext plural module - Helpers - [Cldr.Config](Cldr.Config.md): Provider configuration support functions for ex_cldr. - [Cldr.Install](Cldr.Install.md): Provides functions for installing locales. - [Cldr.Substitution](Cldr.Substitution.md): Compiles substitution formats that are of the form "{0} something {1}" into a token list that allows for more efficient parameter substitution at runtime. - [Cldr.Timezone](Cldr.Timezone.md): Functions to map between the CLDR short time zone code and the IANA timezone names. - Exceptions - [Cldr.AcceptLanguageError](Cldr.AcceptLanguageError.md): Exception raised when there no valid language tag in an `Accept-Language` header. - [Cldr.AmbiguousTimezoneError](Cldr.AmbiguousTimezoneError.md): Exception raised when the there are more than one timezones for a locale - [Cldr.FormatCompileError](Cldr.FormatCompileError.md): Exception raised when there is an error in the compiling of a number format. - [Cldr.FormatError](Cldr.FormatError.md): Exception raised when there is an error in the formatting of a number/list/... - [Cldr.InvalidCurrencyError](Cldr.InvalidCurrencyError.md): Exception raised when there is an invalid currency code. - [Cldr.InvalidDateFormatType](Cldr.InvalidDateFormatType.md): Exception raised when there is an invalid date format type. - [Cldr.InvalidDateTimeFormatType](Cldr.InvalidDateTimeFormatType.md): Exception raised when there is an invalid datetime format type. - [Cldr.InvalidLanguageError](Cldr.InvalidLanguageError.md): Exception raised when a language is invalid - [Cldr.InvalidLanguageTag](Cldr.InvalidLanguageTag.md): Exception raised when there is an a parse error in a language tag - [Cldr.InvalidScriptError](Cldr.InvalidScriptError.md): Exception raised when a script is invalid - [Cldr.InvalidTerritoryError](Cldr.InvalidTerritoryError.md): Exception raised when a territory is invalid - [Cldr.InvalidTimeFormatType](Cldr.InvalidTimeFormatType.md): Exception raised when there is an invalid time format type. - [Cldr.InvalidVariantError](Cldr.InvalidVariantError.md): Exception raised when a language variant is invalid - [Cldr.NoDefaultBackendError](Cldr.NoDefaultBackendError.md): Exception raised when there is no default backend configured - [Cldr.NoMatchingLocale](Cldr.NoMatchingLocale.md): Exception raised when no configured locale matches the provided "Accept-Language" header - [Cldr.NoParentError](Cldr.NoParentError.md): Exception raised when the there are more no parent locale - [Cldr.Rbnf.NotAvailable](Cldr.Rbnf.NotAvailable.md): Exception raised when there is no RBNF for a locale. - [Cldr.UnknownBackendError](Cldr.UnknownBackendError.md): Exception raised when the backend module is unknown or not a backend module - [Cldr.UnknownCalendarError](Cldr.UnknownCalendarError.md): Exception raised when an attempt is made to use a calendar that is not known. in `Cldr`. - [Cldr.UnknownCurrencyError](Cldr.UnknownCurrencyError.md): Exception raised when there is an unknown currency code. - [Cldr.UnknownFormatError](Cldr.UnknownFormatError.md): Exception raised when an attempt is made to use a locale that is not configured in `Cldr`. `Cldr.known_locale_names/1` returns the locale names known to `Cldr`. - [Cldr.UnknownLocaleError](Cldr.UnknownLocaleError.md): Exception raised when an attempt is made to use a locale not configured in `Cldr`. `Cldr.known_locale_names/1` returns the locale names known to `Cldr`. - [Cldr.UnknownMeasurementSystemError](Cldr.UnknownMeasurementSystemError.md): Exception raised when the measurement system is invalid. - [Cldr.UnknownNumberSystemError](Cldr.UnknownNumberSystemError.md): Exception raised when an attempt is made to use a number system that is not known in `Cldr`. `Cldr.Number.number_system_names/0` returns the number system names known to `Cldr`. - [Cldr.UnknownNumberSystemTypeError](Cldr.UnknownNumberSystemTypeError.md): Exception raised when an attempt is made to use a number system type that is not known in `Cldr`. `Cldr.Number.number_system_types/0` returns the number system types known to `Cldr`. - [Cldr.UnknownOTPAppError](Cldr.UnknownOTPAppError.md): Exception raised when the configured OTP app is not known - [Cldr.UnknownPluralRules](Cldr.UnknownPluralRules.md): Exception raised when there are no plural rules for a locale or language. - [Cldr.UnknownTerritoryError](Cldr.UnknownTerritoryError.md): Exception raised when there is an invalid territory code. - [Cldr.UnknownUnitError](Cldr.UnknownUnitError.md): Exception raised when an attempt is made to use a unit that is not known. in `Cldr`.