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ex_cldr_numbers
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2.38.1
2.38.0
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2.33.1
2.33.0
2.32.4
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2.32.1
2.32.0
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2.31.3
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2.31.2
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2.31.0
2.30.1
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2.27.3
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2.27.1
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0.3.3
0.3.2
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0.3.1
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0.3.0
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0.2.0
0.1.0
Number and currency localization and formatting functions for the Common Locale Data Repository (CLDR).
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lib/backend/decimal_formatter.ex
defmodule Cldr.Number.Backend.Decimal.Formatter do
@moduledoc false
def define_number_module(config) do
alias Cldr.Number.Formatter.Decimal
backend = config.backend
quote location: :keep do
defmodule Number.Formatter.Decimal do
alias Cldr.Number.Formatter.Decimal
alias Cldr.Number.Format.Compiler
alias Cldr.Number.Format.Meta
alias Cldr.Number.Format.Options
@doc """
Formats a number according to a decimal format string.
## Arguments
* `number` is an integer, float or Decimal
* `format` is a format string. See `#{inspect(unquote(backend))}.Number` for further information.
* `options` is a map of options. See `#{inspect(unquote(backend))}.Number.to_string/2`
for further information.
"""
@spec to_string(Math.number(), String.t(), list()) ::
{:ok, String.t()} | {:error, {atom, String.t()}}
def to_string(number, format, options \\ [])
def to_string(number, format, options) when is_binary(format) and is_list(options) do
with {:ok, options} <- Options.validate_options(number, unquote(backend), options) do
to_string(number, format, options)
end
end
@spec to_string(Math.number(), String.t(), Options.t()) ::
{:ok, String.t()} | {:error, {atom, String.t()}}
# Precompile the known formats and build the formatting pipeline
# specific to this format thereby optimizing the performance.
unquote(Decimal.define_to_string(backend))
# Other number formatting systems may create the formatting
# metadata by other means (like a printf function) in which
# case we don't do anything except format
def to_string(number, %Meta{} = meta, %Options{} = options) do
meta = Decimal.update_meta(meta, number, unquote(backend), options)
Decimal.do_to_string(number, meta, unquote(backend), options)
end
def to_string(number, %Meta{} = meta, options) do
with {:ok, options} <- Options.validate_options(number, unquote(backend), options) do
to_string(number, meta, options)
end
end
# For formats not precompiled we need to compile first
# and then process. This will be slower than a compiled
# format since we have to (a) compile the format and (b)
# execute the full formatting pipeline.
def to_string(number, format, %Options{} = options) when is_binary(format) do
case Compiler.format_to_metadata(format) do
{:ok, meta} ->
meta = Decimal.update_meta(meta, number, unquote(backend), options)
Decimal.do_to_string(number, meta, unquote(backend), options)
{:error, message} ->
{:error, {Cldr.FormatCompileError, message}}
end
end
end
end
end
end