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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.
Retired package: Deprecated
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lib/cldr/number/formatter/currency_formatter.ex
defmodule Cldr.Number.Formatter.Currency do
@moduledoc """
Format a number in a `:long` format for a :currency.
This formatter implements formatting a currency in a long form. This
is not the same as decimal formatting with a currency placeholder.
To explain the difference, look at the following examples:
iex> Number.to_string 123, format: :currency, currency: "USD"
"$123.00"
iex> Number.to_string 123, format: :long, currency: "USD"
"123.00 US dollars"
In the first example the format is defined by a decimal mask. In this example
the format mask comes from:
iex> Cldr.Number.Format.decimal_formats_for("en").latn.currency
"¤#,##0.00"
In the second example we are using a format that combines the number with
a language translation of the currency name. In this example the format
comes from:
iex> Number.Format.decimal_formats_for("en").latn.currency_long
[one: "{0} {1}", other: "{0} {1}"]
Where "{0}" is replaced with the number formatted using the `:standard`
decimal format and "{1} is replaced with locale-specific name of the
currency adjusted for the locales plural rules."
"""
alias Cldr.Number.Format
alias Cldr.Number.System
alias Cldr.Number
alias Cldr.Currency
def to_string(number, :currency_long, options) do
locale = options[:locale]
number_system = options[:number_system]
|> System.system_name_from(locale)
if !(formats = Format.formats_for(locale, number_system).currency_long) do
raise ArgumentError, message: "No :currency_long format known for " <>
"locale #{inspect locale} and number system #{inspect number_system}."
end
count = Number.Cardinal.plural_rule(number, locale)
currency = Currency.for_code(options[:currency], locale)
format = formats[count] || formats[:other]
options = Keyword.delete(options, :format) |> Keyword.put(:format, :standard)
currency_string = currency.count[count]
number_string = Number.to_string(number, options)
format
|> String.replace("{0}", number_string)
|> String.replace("{1}", currency_string)
end
end