@spec annotated?(currency :: t()) :: boolean()

Returns a boolean indicating if a given currency is annotated.

Annotated means that the currency description has annotations (comments inside parenthesis). This is mostly found in currency codes used as financial instruments (not legal tender).

arguments

Arguments

• currency is a t:Cldr.Currency

returns

Returns

• true or false

@spec currencies_for_locale!(
  Cldr.Locale.locale_name() | Cldr.LanguageTag.t(),
  Cldr.backend(),
  only :: filter(),
  except :: filter()
) :: map() | no_return()

Returns a map of the metadata for all currencies for a given locale and raises on error.

arguments

Arguments

• locale is any valid locale name returned by Cldr.known_locale_names/1 or a Cldr.LanguageTag struct returned by Cldr.Locale.new!/2

• backend is any module that includes use Cldr and therefore is a Cldr backend module

• currency_status is :all, :current, :historic, unannotated or :tender; or a list of one or more status. The default is :all. See Cldr.Currency.currency_filter/2.

returns

Returns

• {:ok, currency_map} or

• raises an exception

example

Example

#=> MyApp.Cldr.Currency.currencies_for_locale! "en" %{

FJD: %Cldr.Currency{
  cash_digits: 2,
  cash_rounding: 0,
  code: "FJD",
  count: %{one: "Fijian dollar", other: "Fijian dollars"},
  digits: 2,
  from: nil,
  iso_digits: 2,
  name: "Fijian Dollar",
  narrow_symbol: "$",
  rounding: 0,
  symbol: "FJD",
  tender: true,
  to: nil
},
SUR: %Cldr.Currency{
  cash_digits: 2,
  cash_rounding: 0,
  code: "SUR",
  count: %{one: "Soviet rouble", other: "Soviet roubles"},
  digits: 2,
  from: nil,
  iso_digits: nil,
  name: "Soviet Rouble",
  narrow_symbol: nil,
  rounding: 0,
  symbol: "SUR",
  tender: true,
  to: nil
},
...

}

@spec currencies_for_locale(
  Cldr.Locale.locale_name() | Cldr.LanguageTag.t(),
  Cldr.backend(),
  only :: filter(),
  except :: filter()
) :: {:ok, map()} | {:error, {module(), String.t()}}

Returns a map of the metadata for all currencies for a given locale.

arguments

Arguments

• locale is any valid locale name returned by Cldr.known_locale_names/1 or a Cldr.LanguageTag struct returned by Cldr.Locale.new!/2

• backend is any module that includes use Cldr and therefore is a Cldr backend module

• currency_status is :all, :current, :historic, unannotated or :tender; or a list of one or more status. The default is :all. See Cldr.Currency.currency_filter/2.

returns

Returns

• {:ok, currency_map} or

• {:error, {exception, reason}}

example

Example

=> Cldr.Currency.currencies_for_locale "en", MyApp.Cldr {:ok, %{

 FJD: %Cldr.Currency{
   cash_digits: 2,
   cash_rounding: 0,
   code: "FJD",
   count: %{one: "Fijian dollar", other: "Fijian dollars"},
   digits: 2,
   from: nil,
   iso_digits: 2,
   name: "Fijian Dollar",
   narrow_symbol: "$",
   rounding: 0,
   symbol: "FJD",
   tender: true,
   to: nil
 },
 SUR: %Cldr.Currency{
   cash_digits: 2,
   cash_rounding: 0,
   code: "SUR",
   count: %{one: "Soviet rouble", other: "Soviet roubles"},
   digits: 2,
   from: nil,
   iso_digits: nil,
   name: "Soviet Rouble",
   narrow_symbol: nil,
   rounding: 0,
   symbol: "SUR",
   tender: true,
   to: nil
 },
 ...
}}

Return only those currencies meeting the filter criteria.

arguments

Arguments

• currency is a t:Cldr.Currency, a list of t:Cldr.Currency or a map where the values of each item is a Cldr.Currency.t

• only is :all, :current, :historic, :tender unannotated or a list of one or more status or currency codes. The default is :all

• except is :current, :historic, :tender unannotated or a list of one or more status or currency codes. The default is nil

currency-status

Currency Status

A currency may be in current use or of historic interest only. It may or may not be legal tender. And it may mostly be used as a financial instrument. To help return the most useful currencies the currency status code acts as follows:

• :all, the default, returns all currencies

• :current returns those currencies that have a :to date of nil and which also is a known ISO4217 currency

• :historic is the opposite of :current

• :tender is a currency that is legal tender

• :unannotated is a currency that doesn't have "(some string)" in its name. These are usually financial instruments.

@spec currency_for_code!(code() | t(), Cldr.backend(), Keyword.t()) ::
  t() | no_return()

Returns the currency metadata for the requested currency code.

arguments

Arguments

• currency_or_currency_code is a binary or atom representation of an ISO 4217 currency code, or a t:Cldr.Currency struct.

• backend is any module that includes use Cldr and therefore is a Cldr backend module

• options is a Keyword list of options.

options

Options

• :locale is any valid locale name returned by Cldr.known_locale_names/1 or a Cldr.LanguageTag struct returned by Cldr.Locale.new!/2

returns

Returns

• A t:Cldr.Current.t/0 or

• raises an exception

examples

Examples

iex> Cldr.Currency.currency_for_code!("AUD", MyApp.Cldr)
%Cldr.Currency{
  cash_digits: 2,
  cash_rounding: 0,
  code: "AUD",
  count: %{one: "Australian dollar", other: "Australian dollars"},
  digits: 2,
  iso_digits: 2,
  name: "Australian Dollar",
  narrow_symbol: "$",
  rounding: 0,
  symbol: "A$",
  tender: true
}

iex> Cldr.Currency.currency_for_code!("THB", MyApp.Cldr)
%Cldr.Currency{
  cash_digits: 2,
  cash_rounding: 0,
  code: "THB",
  count: %{one: "Thai baht", other: "Thai baht"},
  digits: 2,
  iso_digits: 2,
  name: "Thai Baht",
  narrow_symbol: "฿",
  rounding: 0,
  symbol: "THB",
  tender: true
}

@spec currency_for_code(code() | t(), Cldr.backend(), Keyword.t()) ::
  {:ok, t()} | {:error, {module(), String.t()}}

Returns the currency metadata for the requested currency code.

arguments

Arguments

• currency_or_currency_code is a binary or atom representation of an ISO 4217 currency code, or a t:Cldr.Currency struct.

• backend is any module that includes use Cldr and therefore is a Cldr backend module

• options is a Keyword list of options.

options

Options

• :locale is any valid locale name returned by Cldr.known_locale_names/1 or a Cldr.LanguageTag struct returned by Cldr.Locale.new!/2

returns

Returns

• A {:ok, currency} or

• {:error, {exception, reason}}

examples

Examples

iex> Cldr.Currency.currency_for_code("AUD", MyApp.Cldr)
{:ok,
  %Cldr.Currency{
    cash_digits: 2,
    cash_rounding: 0,
    code: "AUD",
    count: %{one: "Australian dollar", other: "Australian dollars"},
    digits: 2,
    iso_digits: 2,
    name: "Australian Dollar",
    narrow_symbol: "$",
    rounding: 0,
    symbol: "A$",
    tender: true
}}

iex> Cldr.Currency.currency_for_code("THB", MyApp.Cldr)
{:ok,
  %Cldr.Currency{
    cash_digits: 2,
    cash_rounding: 0,
    code: "THB",
    count: %{one: "Thai baht", other: "Thai baht"},
    digits: 2,
    iso_digits: 2,
    name: "Thai Baht",
    narrow_symbol: "฿",
    rounding: 0,
    symbol: "THB",
    tender: true
}}

Returns the effective currency format for a given locale

arguments

Arguments

• locale a Cldr.LanguageTag struct returned by Cldr.Locale.new!/2

returns

Returns

• Either :accounting or :currency

examples

Examples

iex> {:ok, locale} = Cldr.validate_locale "en", MyApp.Cldr
iex> Cldr.Currency.currency_format_from_locale locale
:currency

iex> {:ok, locale} = Cldr.validate_locale "en-AU-u-cu-eur", MyApp.Cldr
iex> Cldr.Currency.currency_format_from_locale locale
:currency

iex> {:ok, locale} = Cldr.validate_locale "en-AU-u-cu-eur-cf-account", MyApp.Cldr
iex> Cldr.Currency.currency_format_from_locale locale
:accounting

Returns the effective currency format for a given locale

arguments

Arguments

• locale a Cldr.LanguageTag struct returned by Cldr.Locale.new!/2

• backend is any module that includes use Cldr and therefore is a Cldr backend module. The default is Cldr.default_backend!/0

returns

Returns

• Either :accounting or :currency

examples

Examples

iex> Cldr.Currency.currency_format_from_locale "en", MyApp.Cldr
:currency

iex> Cldr.Currency.currency_format_from_locale "en-AU-u-cu-eur", MyApp.Cldr
:currency

iex> Cldr.Currency.currency_format_from_locale "en-AU-u-cu-eur-cf-account", MyApp.Cldr
:accounting

Returns the effective currency for a given locale

arguments

Arguments

• locale is a Cldr.LanguageTag struct returned by Cldr.Locale.new!/2

returns

Returns

• A ISO 4217 currency code as an upcased atom

examples

Examples

iex> {:ok, locale} = Cldr.validate_locale "en", MyApp.Cldr
iex> Cldr.Currency.currency_from_locale locale
:USD

iex> {:ok, locale} = Cldr.validate_locale "en-AU", MyApp.Cldr
iex> Cldr.Currency.currency_from_locale locale
:AUD

iex> Cldr.Currency.currency_from_locale "en-GB"
:GBP

Returns the effective currency for a given locale

arguments

Arguments

• locale is any valid locale name returned by Cldr.known_locale_names/1

• backend is any module that includes use Cldr and therefore is a Cldr backend module. The default is Cldr.default_backend!/0

returns

Returns

• A ISO 4217 currency code as an upcased atom

examples

Examples

iex> Cldr.Currency.currency_from_locale "fr-CH", MyApp.Cldr
:CHF

iex> Cldr.Currency.currency_from_locale "fr-CH-u-cu-INR", MyApp.Cldr
:INR

@spec currency_history_for_locale(Cldr.LanguageTag.t()) ::
  {:ok, map()} | {:error, {atom(), binary()}}

Returns a list of historic and the current currency for a given locale.

arguments

Arguments

• locale is any valid locale name returned by Cldr.known_locale_names/1 or a Cldr.LanguageTag struct returned by Cldr.Locale.new!/2

• backend is any module that includes use Cldr and therefore is a Cldr backend module

example

Example

iex> Cldr.Currency.currency_history_for_locale "en", MyApp.Cldr
{:ok,
  %{
    USD: %{from: ~D[1792-01-01], to: nil},
    USN: %{tender: false},
    USS: %{from: nil, tender: false, to: ~D[2014-03-01]}
  }
}

Returns a map that matches a currency string to a currency code or raises an exception.

A currency string is a localised name or symbol representing a currency in a locale-specific manner.

arguments

Arguments

• locale is any valid locale name returned by Cldr.known_locale_names/1 or a Cldr.LanguageTag struct returned by Cldr.Locale.new!/2.

• currency_status is :all, :current, :historic, unannotated or :tender; or a list of one or more status. The default is :all. See Cldr.Currency.currency_filter/2.

returns

Returns

• {:ok, currency_string_map} or

• raises an exception.

example

Example

=> Cldr.Currency.currency_strings! "en", MyApp.Cldr
%{
  "mexican silver pesos" => :MXP,
  "sudanese dinar" => :SDD,
  "bad" => :BAD,
  "rsd" => :RSD,
  "swazi lilangeni" => :SZL,
  "zairean new zaire" => :ZRN,
  "guyanaese dollars" => :GYD,
  "equatorial guinean ekwele" => :GQE,
  ...
}

Returns a map that matches a currency string to a currency code.

A currency string is a localised name or symbol representing a currency in a locale-specific manner.

arguments

Arguments

• locale is any valid locale name returned by Cldr.known_locale_names/1 or a Cldr.LanguageTag struct returned by Cldr.Locale.new!/2.

• :only is :all, :current, :historic, unannotated or :tender; or a list of one or more status The default is :all. See Cldr.Currency.currency_filter/2.

returns

Returns

• {:ok, currency_string_map} or

• {:error, {exception, reason}}

example

Example

=> Cldr.Currency.currency_strings "en", MyApp.Cldr
{:ok,
 %{
   "mexican silver pesos" => :MXP,
   "sudanese dinar" => :SDD,
   "bad" => :BAD,
   "rsd" => :RSD,
   "swazi lilangeni" => :SZL,
   "zairean new zaire" => :ZRN,
   "guyanaese dollars" => :GYD,
   "equatorial guinean ekwele" => :GQE,
   ...
}}

# Currencies match all currency status'
=> Cldr.Currency.currency_strings "en", MyApp.Cldr, [:tender, :current, :unannotated]
{:ok,
 %{
   "rsd" => :RSD,
   "swazi lilangeni" => :SZL,
   "guyanaese dollars" => :GYD,
   "syrian pound" => :SYP,
   "scr" => :SCR,
   "bangladeshi takas" => :BDT,
   "netherlands antillean guilders" => :ANG,
   "pen" => :PEN,
   ...
}}

@spec current_currency_for_territory(Cldr.Locale.territory_code()) ::
  code() | nil | {:error, {module(), String.t()}}

Returns the current currency for a given territory.

arguments

Arguments

• territory is any valid territory name returned by Cldr.known_territories/0

examples

Examples

iex> Cldr.Currency.current_currency_for_territory :US
:USD

iex> Cldr.Currency.current_currency_for_territory :AU
:AUD

@spec current_currency_from_locale(Cldr.LanguageTag.t()) :: any()

Returns the current currency from a given locale.

This function does not consider the U extenion parameters cu or rg. It is recommended to us Cldr.Currency.currency_from_locale/1 in most circumstances.

arguments

Arguments

• locale is any valid locale name returned by Cldr.known_locale_names/1 or a Cldr.LanguageTag struct returned by Cldr.Locale.new!/2

• backend is any module that includes use Cldr and therefore is a Cldr backend module

examples

Examples

iex> Cldr.Currency.current_currency_from_locale "en", MyApp.Cldr
:USD

iex> Cldr.Currency.current_currency_from_locale "en-AU", MyApp.Cldr
:AUD

@spec current?(currency :: t()) :: boolean()

Returns a boolean indicating if a given currency is current.

Current means that the currency is in current use.

arguments

Arguments

• currency is a t:Cldr.Currency

returns

Returns

• true or false

@spec display_name!(t() | code(), Keyword.t()) :: String.t() | no_return()

Return the display name for a currency or raises and exception on error.

The display name is useful for UI uses, for example in menus. The display name is typically capitalized for stand-alone use where as the display name returned by Cldr.Currency.pluralize/4 is typically lower-cased for use within sentences.

arguments

Arguments

• currency is any currency code returned by Cldr.Currency.known_currencies/0 or a t:Cldr.Currency struct returned by Cldr.Currency.currency_for_code/3

options

Options

• :locale is any locale returned by Cldr.Locale.new!/2. The default is Cldr.get_locale/0

• :backend is any module that includes use Cldr and therefore is a Cldr backend module. The default is Cldr.default_backend!/0

returns

Returns

• display_name

• or raises an exception

examples

Examples

iex> Cldr.Currency.display_name! :AUD, backend: MyApp.Cldr
"Australian Dollar"

iex> Cldr.Currency.display_name! "AUD", backend: MyApp.Cldr, locale: "fr"
"dollar australien"

iex> Cldr.Currency.display_name! "EUR", backend: MyApp.Cldr, locale: "de"
"Euro"

#=> Cldr.Currency.display_name! "ZZZ", backend: MyApp.Cldr
** (Cldr.UnknownCurrencyError) The currency "ZZZ" is invalid

@spec display_name(t() | code(), Keyword.t()) ::
  {:ok, String.t()} | {:error, {module(), String.t()}}

Return the display name for a currency.

The display name is useful for UI uses, for example in menus. The display name is typically capitalized for stand-alone use where as the display name returned by Cldr.Currency.pluralize/4 is typically lower-cased for use within sentences.

arguments

Arguments

• currency is any currency code returned by Cldr.Currency.known_currencies/0 or a t:Cldr.Currency struct returned by Cldr.Currency.currency_for_code/3

options

Options

• :locale is any locale returned by Cldr.Locale.new!/2. The default is Cldr.get_locale/0

• :backend is any module that includes use Cldr and therefore is a Cldr backend module. The default is Cldr.default_backend!/0

returns

Returns

• {:ok, display_name}

• or {:error, {exception, reason}}

examples

Examples

iex> Cldr.Currency.display_name :AUD, backend: MyApp.Cldr
{:ok, "Australian Dollar"}

iex> Cldr.Currency.display_name "AUD", backend: MyApp.Cldr, locale: "fr"
{:ok, "dollar australien"}

iex> Cldr.Currency.display_name "EUR", backend: MyApp.Cldr, locale: "de"
{:ok, "Euro"}

iex> Cldr.Currency.display_name "ZZZ", backend: MyApp.Cldr
{:error, {Cldr.UnknownCurrencyError, "The currency \"ZZZ\" is invalid"}}

@spec historic?(currency :: t()) :: boolean()

Returns a boolean indicating if a given currency is historic.

Historic means that the currency is no longer in use.

arguments

Arguments

• currency is a t:Cldr.Currency

returns

Returns

• true or false

See Cldr.Currency.known_currency_codes/0.

@spec known_currency_code(code()) :: {:ok, code()} | {:error, {module(), String.t()}}

Returns a 2-tuple indicating if the supplied currency code is known.

arguments

Arguments

• currency_code is a binary or atom representing an ISO4217 currency code

returns

Returns

• {:ok, currency_code} or

• {:error, {exception, reason}}

examples

Examples

iex> Cldr.Currency.known_currency_code "AUD"
{:ok, :AUD}

iex> Cldr.Currency.known_currency_code "GGG"
{:error, {Cldr.UnknownCurrencyError, "The currency \"GGG\" is invalid"}}

@spec known_currency_code?(code()) :: boolean()

Returns a boolean indicating if the supplied currency code is known.

arguments

Arguments

• currency_code is a binary or atom representing an ISO4217 currency code

returns

Returns

• true or false

examples

Examples

iex> Cldr.Currency.known_currency_code? "AUD"
true

iex> Cldr.Currency.known_currency_code? "GGG"
false

iex> Cldr.Currency.known_currency_code? :XCV
false

@spec known_currency_codes() :: [atom()]

Returns a list of all known currency codes.

example

Example

iex> Cldr.Currency.known_currency_codes

See Cldr.Currency.known_currency_code?/1.

@spec new(binary() | atom(), map() | list()) ::
  {:ok, t()} | {:error, {module(), String.t()}}

Returns a Currency struct created from the arguments.

arguments

Arguments

• currency is a private use currency code in a format defined by ISO4217 which is X followed by two alphanumeric characters.

• options is a map of options representing the optional elements of the Cldr.Currency.t struct.

options

Options

• :name is the name of the currenct. Required.
• :digits is the precision of the currency. Required.
• :symbol is the currency symbol. Optional.
• :narrow_symbol is an alternative narrow symbol. Optional.
• :round_nearest is the rounding precision such as 0.05. Optional.
• :alt_code is an alternative currency code for application use.
• :cash_digits is the precision of the currency when used as cash. Optional.
• :cash_round_nearest is the rounding precision when used as cash such as 0.05. Optional.

returns

Returns

• {:ok, Cldr.Currency.t} or

• {:error, {exception, message}}

example

Example

iex> Cldr.Currency.new(:XAC, name: "XAC currency", digits: 0)
{:ok,
 %Cldr.Currency{
   alt_code: :XAC,
   cash_digits: 0,
   cash_rounding: nil,
   code: :XAC,
   count: %{other: "XAC currency"},
   digits: 0,
   from: nil,
   iso_digits: 0,
   name: "XAC currency",
   narrow_symbol: nil,
   rounding: 0,
   symbol: "XAC",
   tender: false,
   to: nil
 }}
iex> Cldr.Currency.new(:XBC)
{:error, {Cldr.CurrencyAlreadyDefined, "Currency :XBC is already defined."}}
iex> MyApp.Cldr.Currency.new(:XAB, name: "Private Use Name")
{:error, "Required options are missing. Required options are [:name, :digits]"}
iex> Cldr.Currency.new(:ZAA, name: "Invalid Private Use Name", digits: 0)
{:error, {Cldr.UnknownCurrencyError, "The currency :ZAA is invalid"}}

@spec pluralize(pos_integer(), code(), Cldr.backend(), Keyword.t()) ::
  {:ok, String.t()} | {:error, {module(), String.t()}}

Returns the appropriate currency display name for the currency, based on the plural rules in effect for the locale.

arguments

Arguments

• number is an integer, float or Decimal

• currency is any currency returned by Cldr.Currency.known_currencies/0

• locale is any valid locale name returned by Cldr.known_locale_names/1 or a Cldr.LanguageTag struct returned by Cldr.Locale.new!/2

• backend is any module that includes use Cldr and therefore is a Cldr backend module

• options is a keyword list of options

options

Options

• :locale is any locale returned by Cldr.Locale.new!/2. The default is <backend>.get_locale/1

returns

Returns

• {:ok, plural_string} or

• {:error, {exception, message}}

examples

Examples

iex> Cldr.Currency.pluralize 1, :USD, MyApp.Cldr
{:ok, "US dollar"}

iex> Cldr.Currency.pluralize 3, :USD, MyApp.Cldr
{:ok, "US dollars"}

iex> Cldr.Currency.pluralize 12, :USD, MyApp.Cldr, locale: "zh"
{:ok, "美元"}

iex> Cldr.Currency.pluralize 12, :USD, MyApp.Cldr, locale: "fr"
{:ok, "dollars des États-Unis"}

iex> Cldr.Currency.pluralize 1, :USD, MyApp.Cldr, locale: "fr"
{:ok, "dollar des États-Unis"}

@spec private_currencies() :: %{required(code()) => t()}

Returns a map of private currencies.

These comprise all currencies created with Cldr.Currency.new/2.

@spec private_currency_codes() :: [atom()]

Returns a list of all private currency codes.

@spec strings_for_currency(
  t(),
  Cldr.LanguageTag.t() | Cldr.Locale.locale_name(),
  Cldr.backend()
) :: [
  String.t()
]

Returns the strings associated with a currency in a given locale.

arguments

Arguments

• currency is an ISO4217 currency code

• locale is any valid locale name returned by Cldr.known_locale_names/1 or a Cldr.LanguageTag struct returned by Cldr.Locale.new!/2.

• backend is any module that includes use Cldr and therefore is a Cldr backend module

returns

Returns

• A list of strings or

• {:error, {exception, reason}}

example

Example

iex> Cldr.Currency.strings_for_currency(:AUD, "en", MyApp.Cldr) |> Enum.sort
["a$", "aud", "australian dollar", "australian dollars"]

iex> Cldr.Currency.strings_for_currency(:AUD, "de", MyApp.Cldr) |> Enum.sort
["au$", "aud", "australische dollar", "australischer dollar"]

iex> Cldr.Currency.strings_for_currency(:AUD, "zh", MyApp.Cldr) |> Enum.sort
["au$", "aud", "澳大利亚元"]

@spec tender?(currency :: t()) :: boolean()

Returns a boolean indicating if a given currency is legal tender.

Legal tender is anything recognized by law as a means to settle a public or private debt or meet a financial obligation.

arguments

Arguments

• currency is a t:Cldr.Currency

returns

Returns

• true or false

@spec territory_currencies!(territory()) :: map() | no_return()

Returns a list of currencies associated with a given territory.

arguments

Arguments

• territory is any valid ISO 3166 Alpha-2 territory code. See Cldr.validate_territory/1.

returns

Returns

• map where map has as its key a t:Cldr.Currency struct and the value is a map of validity dates for that currency; or

• raises an exception

example

Example

iex> Cldr.Currency.territory_currencies!(:LT)
%{
  EUR: %{from: ~D[2015-01-01], to: nil},
  LTL: %{from: nil, to: ~D[2014-12-31]},
  LTT: %{from: nil, to: ~D[1993-06-25]},
  SUR: %{from: nil, to: ~D[1992-10-01]}
}

Returns a mapping of all ISO3166 territory codes and a list of historic and the current currency for those territories.

example

Example

iex> Cldr.Currency.territory_currencies |> Map.get(:LT)
%{
  EUR: %{from: ~D[2015-01-01], to: nil},
  LTL: %{from: nil, to: ~D[2014-12-31]},
  LTT: %{from: nil, to: ~D[1993-06-25]},
  SUR: %{from: nil, to: ~D[1992-10-01]}
}

@spec territory_currencies(territory()) ::
  {:ok, map()} | {:error, {module(), String.t()}}

Returns a list of currencies associated with a given territory.

arguments

Arguments

• territory is any valid ISO 3166 Alpha-2 territory code. See Cldr.validate_territory/1.

returns

Returns

• {:ok, map} where map has as its key a t:Cldr.Currency struct and the value is a map of validity dates for that currency; or

• {:error, {exception, reason}}

example

Example

iex> Cldr.Currency.territory_currencies(:LT)
{:ok, %{
  EUR: %{from: ~D[2015-01-01], to: nil},
  LTL: %{from: nil, to: ~D[2014-12-31]},
  LTT: %{from: nil, to: ~D[1993-06-25]},
  SUR: %{from: nil, to: ~D[1992-10-01]}
}}

@spec unannotated?(currency :: t()) :: boolean()

Returns a boolean indicating if a given currency is unannotated.

Annotated means that the currency description has annotations (comments inside parenthesis). This is mostly found in currency codes used as financial instruments (not legal tender).

arguments

Arguments

• currency is a t:Cldr.Currency

returns

Returns

• true or false

@spec validate_new_currency(code()) ::
  {:ok, code()} | {:error, {module(), String.t()}}

Determines is a new currency is already defined.

example

Example

iex> Cldr.Currency.validate_new_currency :XAD
{:ok, :XAD}

iex> Cldr.Currency.validate_new_currency :USD
{:error, {Cldr.CurrencyAlreadyDefined, "Currency :USD is already defined."}}