View Source Cldr.Print.Backend.Number.Ordinal (ex_cldr_print v1.0.0)
Implements ordinal plural rules for numbers.
Link to this section Summary
Functions
The locale names for which plural rules are defined.
The configured locales for which plural rules are defined.
Return the plural key for a given number in a given locale
Returns all the plural rules defined in CLDR.
Return the plural rules for a locale.
Pluralize a number using ordinal plural rules and a substitution map.
Link to this section Functions
The locale names for which plural rules are defined.
Specs
known_locale_names() :: [Cldr.Locale.locale_name(), ...]
The configured locales for which plural rules are defined.
Returns the intersection of Cldr.Print.Backend.known_locale_names/0
and
the locales for which Ordinal plural rules are defined.
There are many Cldr
locales which don't have their own plural
rules so this list is the intersection of Cldr
's configured
locales and those that have rules.
Specs
plural_rule( Cldr.Math.number_or_decimal(), Cldr.Locale.locale_name() | Cldr.LanguageTag.t(), atom() | pos_integer() ) :: Cldr.Number.PluralRule.plural_type()
Return the plural key for a given number in a given locale
Returns which plural key (:zero
, :one
, :two
, :few
,
:many
or :other
) a given number fits into within the
context of a given locale.
Note that these key names should not be interpreted
literally. For example, the key returned from
Cldr.Number.Ordinal.plural_rule(0, "en")
is actually
:other
, not :zero
.
This key can then be used to format a number, date, time, unit, list or other content in a plural-sensitive way.
arguments
Arguments
number
is anyinteger
,float
orDecimal
locale
is any locale returned byCldr.Locale.new!/2
or anylocale_name
returned byCldr.Print.Backend.known_locale_names/0
rounding
is one of[:down, :up, :ceiling, :floor, :half_even, :half_up, :half_down]
. The default is:half_even
.
examples
Examples
iex> Cldr.Print.Backend.Number.Ordinal.plural_rule 0, "fr"
:other
iex> Cldr.Print.Backend.Number.Ordinal.plural_rule 1, "en"
:one
Specs
plural_rules() :: map()
Returns all the plural rules defined in CLDR.
Specs
plural_rules_for(Cldr.Locale.locale_name() | Cldr.LanguageTag.t()) :: [ {atom(), list()}, ... ]
Return the plural rules for a locale.
arguments
Arguments
locale
is any locale returned byCldr.Print.Backend.Locale.new!/1
or anylocale_name
returned byCldr.Print.Backend.known_locale_names/0
The rules are returned in AST form after parsing.
Specs
pluralize( Cldr.Math.number_or_decimal() | Range.t(), Cldr.Locale.locale_reference(), %{} ) :: any()
Pluralize a number using ordinal plural rules and a substitution map.
arguments
Arguments
number
is an integer, float or Decimal or aRange.t{}
. When a range, The is that in any usage, the start value is strictly less than the end value, and that no values are negative. Results for any cases that do not meet these criteria are undefined.locale
is any locale returned byCldr.Print.Backend.Locale.new!/1
or anylocale_name
returned byCldr.Print.Backend.known_locale_names/0
substitutions
is a map that maps plural keys to a string. The valid substitution keys are:zero
,:one
,:two
,:few
,:many
and:other
.
See also Cldr.Print.Backend.Number.Ordinal.Ordinal.plural_rule/3
.
examples
Examples
iex> Cldr.Print.Backend.Number.Ordinal.pluralize 1, :en, %{one: "one"}
"one"
iex> Cldr.Print.Backend.Number.Ordinal.pluralize 2, :en, %{one: "one"}
nil
iex> Cldr.Print.Backend.Number.Ordinal.pluralize 2, :en, %{one: "one", two: "two"}
"two"
iex> Cldr.Print.Backend.Number.Ordinal.pluralize 22, :en, %{one: "one", two: "two", other: "other"}
"two"
iex> Cldr.Print.Backend.Number.Ordinal.pluralize Decimal.new(1), :en, %{one: "one"}
"one"
iex> Cldr.Print.Backend.Number.Ordinal.pluralize Decimal.new(2), :en, %{one: "one"}
nil
iex> Cldr.Print.Backend.Number.Ordinal.pluralize Decimal.new(2), :en, %{one: "one", two: "two"}
"two"
iex> Cldr.Print.Backend.Number.Ordinal.pluralize 1..10, "ar", %{one: "one", few: "few", other: "other"}
"other"
iex> Cldr.Print.Backend.Number.Ordinal.pluralize 1..10, "en", %{one: "one", few: "few", other: "other"}
"other"