83 lines
2.1 KiB
Elixir
83 lines
2.1 KiB
Elixir
# Pleroma: A lightweight social networking server
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# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
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defmodule Pleroma.Web.Gettext do
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@moduledoc """
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A module providing Internationalization with a gettext-based API.
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By using [Gettext](https://hexdocs.pm/gettext),
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your module gains a set of macros for translations, for example:
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import Pleroma.Web.Gettext
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# Simple translation
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gettext "Here is the string to translate"
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# Plural translation
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ngettext "Here is the string to translate",
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"Here are the strings to translate",
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3
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# Domain-based translation
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dgettext "errors", "Here is the error message to translate"
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See the [Gettext Docs](https://hexdocs.pm/gettext) for detailed usage.
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"""
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use Gettext, otp_app: :pleroma
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def language_tag do
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# Naive implementation: HTML lang attribute uses BCP 47, which
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# uses - as a separator.
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# https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/lang
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Gettext.get_locale()
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|> String.replace("_", "-", global: true)
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end
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def normalize_locale(locale) do
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if is_binary(locale) do
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String.replace(locale, "-", "_")
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else
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nil
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end
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end
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def supports_locale?(locale) do
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Pleroma.Web.Gettext
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|> Gettext.known_locales()
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|> Enum.member?(locale)
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end
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def variant?(locale), do: String.contains?(locale, "_")
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def supported_variants_of_locale(locale) do
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cond do
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variant?(locale) ->
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[locale]
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supports_locale?(locale) ->
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[locale]
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true ->
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Gettext.known_locales(Pleroma.Web.Gettext)
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|> Enum.filter(fn l -> String.starts_with?(l, locale <> "_") end)
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end
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end
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def locale_or_default(locale) do
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if supports_locale?(locale) do
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locale
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else
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Gettext.get_locale()
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end
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end
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defmacro with_locale_or_default(locale, do: fun) do
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quote do
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Gettext.with_locale(Pleroma.Web.Gettext.locale_or_default(unquote(locale)), fn ->
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unquote(fun)
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end)
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end
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end
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end
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