Packages
ex_cldr_numbers
0.2.2
2.38.3
2.38.2
2.38.1
2.38.0
2.37.0
2.36.0
2.35.2
2.35.1
2.35.0
2.34.1
2.34.0
2.33.6
2.33.5
2.33.4
2.33.3
2.33.2
2.33.1
2.33.0
2.32.4
2.32.3
2.32.2
2.32.1
2.32.0
retired
2.31.3
retired
2.31.2
2.31.1
2.31.0
2.30.1
2.30.0
2.29.0
2.28.0
2.27.3
2.27.2
2.27.1
2.27.0
2.26.0
2.25.2
2.25.1
2.25.0
2.24.0
2.23.3
2.23.2
2.23.1
2.23.0
2.23.0-rc.4
2.23.0-rc.3
2.23.0-rc.2
2.23.0-rc.1
2.23.0-rc.0
2.22.1
2.22.0
2.21.0
2.20.0
2.19.0
2.18.4
2.18.3
2.18.2
2.18.1
2.18.0
2.17.0
2.17.0-rc.1
2.17.0-rc.0
2.16.1
2.16.0
2.16.0-rc.0
2.15.4
2.15.3
2.15.2
2.15.1
2.15.0
2.14.0
2.13.2
2.13.1
2.13.0
2.13.0-rc.0
2.12.1
2.12.0
2.11.0
2.10.0
2.9.0
2.8.0
2.7.2
2.7.1
2.7.0
2.6.4
2.6.3
2.6.2
2.6.1
2.6.0
2.5.0
2.4.4
2.4.3
2.4.2
2.4.1
2.4.0
2.3.0
2.2.0
2.1.1
2.1.0
2.0.0
2.0.0-rc.0
1.6.0
1.5.2
1.5.1
1.5.0
1.4.4
1.4.3
1.4.2
1.4.1
1.4.0
1.3.1
1.3.0
1.3.0-rc.1
1.3.0-rc.0
retired
1.2.0
1.1.0
1.0.1
1.0.0
1.0.0-rc.0
retired
0.3.3
0.3.2
retired
0.3.1
retired
0.3.0
retired
0.2.3
0.2.2
0.2.1
0.2.0
0.1.0
Number and currency localization and formatting functions for the Common Locale Data Repository (CLDR).
Current section
Files
Jump to
Current section
Files
lib/number/formatter/currency_formatter.ex
defmodule Cldr.Number.Formatter.Currency do
@moduledoc """
Number formatter for the `:currency` `:long` format.
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> Cldr.Number.to_string 123, format: :currency, currency: "USD"
{:ok, "$123.00"}
iex> Cldr.Number.to_string 123, format: :long, currency: "USD"
{:ok, "123 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.all_formats_for(Cldr.Locale.new("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> Cldr.Number.Format.all_formats_for(Cldr.Locale.new("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, System}
alias Cldr.{Number, Substitution, Currency}
def to_string(number, :currency_long, options) do
locale = options[:locale]
number_system = System.system_name_from!(options[:number_system], 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
currency = Currency.for_code(options[:currency], locale)
currency_string = Number.Cardinal.pluralize(number, locale, currency.count)
options = options
|> Map.put(:format, :standard)
|> set_fractional_digits(options[:fractional_digits])
number_string = Number.to_string!(number, options)
format = Number.Cardinal.pluralize(number, locale, formats)
Substitution.substitute([number_string, currency_string], format)
|> :erlang.iolist_to_binary
end
defp set_fractional_digits(options, nil) do
options
|> Map.put(:fractional_digits, 0)
end
defp set_fractional_digits(options, _digits) do
options
end
end