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gnu-social/src/Util/I18n.php

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<?php
/*
* This file is part of GNU social - https://www.gnu.org/software/social
*
* GNU social is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GNU social is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with GNU social. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* Utility functions for i18n
*
* @category I18n
* @package GNU social
*
* @author Matthew Gregg <matthew.gregg@gmail.com>
* @author Ciaran Gultnieks <ciaran@ciarang.com>
* @author Evan Prodromou <evan@status.net>
* @author Diogo Cordeiro <diogo@fc.up.pt>
* @author Hugo Sales <hugo@fc.up.pt>
* @copyright 2010, 2018-2020 Free Software Foundation, Inc http://www.fsf.org
* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
*/
namespace App\Util;
// Locale category constants are usually predefined, but may not be
// on some systems such as Win32.
$LC_CATEGORIES = [
'LC_CTYPE',
'LC_NUMERIC',
'LC_TIME',
'LC_COLLATE',
'LC_MONETARY',
'LC_MESSAGES',
'LC_ALL',
];
foreach ($LC_CATEGORIES as $key => $name) {
if (!\defined($name)) {
define($name, $key);
}
}
use Symfony\Contracts\Translation\TranslatorInterface;
abstract class I18n
{
public static ?TranslatorInterface $translator = null;
public static function setTranslator($trans): void
{
self::$translator = $trans;
}
/**
* Looks for which plugin we've been called from to set the gettext domain;
* if not in a plugin subdirectory, we'll use the default 'gnusocial'.
*
* @param array $backtrace debug_backtrace() output
*
* @return string
* @private
*/
public static function _mdomain(array $backtrace): string
{
/*
0 =>
array
'file' => string '/var/www/mublog/plugins/FeedSub/FeedSubPlugin.php' (length=49)
'line' => int 77
'function' => string '_m' (length=2)
'args' =>
array
0 => &string 'Feeds' (length=5)
*/
static $cached;
$path = $backtrace[0]['file'];
if (!isset($cached[$path])) {
$path = common::normalizePath($path);
$cached[$path] = common::pluginFromPath($path);
}
return $cached[$path] ?? '';
}
}
/**
* Wrapper for symfony translation with smart domain detection.
*
* If calling from a plugin, this function checks which plugin it was
* being called from and uses that as text domain, which will have
* been set up during plugin initialization.
*
* Also handles plurals and contexts depending on what parameters
* are passed to it:
*
* _m($msg) -- simple message
* _m($ctx, $msg) -- message with context
* _m($msg1, $msg2, $n) -- message that cann be singular or plural
* _m($ctx, $msg1, $msg2, $n) -- combination of the previous two
*
* @param string $msg
* @param extra params as described above
*
* @throws Exception
*
* @return string
*/
function _m(string $msg /*, ...*/): string
{
$domain = I18n::_mdomain(\debug_backtrace());
$args = func_get_args();
switch (\count($args)) {
case 1:
// Empty parameters
return I18n::$translator->trans($msg, [], $domain);
case 2:
$context = $args[0];
$msg_single = $args[1];
// ASCII 4 is EOT, used to separate context from string
return I18n::$translator->trans($context . '\004' . $msg_single, [], $domain);
case 3:
// '|' separates the singular from the plural version
$msg_single = $args[0];
$msg_plural = $args[1];
$n = $args[2];
return I18n::$translator->trans($msg_single . '|' . $msg_plural, ['%d' => $n], $domain);
case 4:
// Combine both
$context = $args[0];
$msg_single = $args[1];
$msg_plural = $args[2];
$n = $args[3];
return I18n::$translator->trans($context . '\004' . $msg_single . '|' . $msg_plural,
['%d' => $n], $domain);
default:
throw new Exception('Bad parameter count to _m()');
}
}
/**
* Content negotiation for language codes
*
* @param string $http_accept_lang_header HTTP Accept-Language header
*
* @return string language code for best language match, false otherwise
*/
function client_preferred_language(string $http_accept_lang_header): string
{
$client_langs = [];
$all_languages = Common::config('site', 'languages');
preg_match_all('"(((\S\S)-?(\S\S)?)(;q=([0-9.]+))?)\s*(,\s*|$)"',
strtolower($http_accept_lang_header), $http_langs);
for ($i = 0; $i < count($http_langs); ++$i) {
if (!empty($http_langs[2][$i])) {
// if no q default to 1.0
$client_langs[$http_langs[2][$i]] = ($http_langs[6][$i] ? (float) $http_langs[6][$i] : 1.0 - ($i * 0.01));
}
if (!empty($http_langs[3][$i]) && empty($client_langs[$http_langs[3][$i]])) {
// if a catchall default 0.01 lower
$client_langs[$http_langs[3][$i]] = ($http_langs[6][$i] ? (float) $http_langs[6][$i] - 0.01 : 0.99);
}
}
// sort in descending q
arsort($client_langs);
foreach ($client_langs as $lang => $q) {
if (isset($all_languages[$lang])) {
return $all_languages[$lang]['lang'];
}
}
return false;
}
/**
* returns a simple code -> name mapping for languages
*
* @return array map of available languages by code to language name.
*/
function get_nice_language_list(): array
{
$nice_lang = [];
$all_languages = common_config('site', 'languages');
foreach ($all_languages as $lang) {
$nice_lang[$lang['lang']] = $lang['name'];
}
return $nice_lang;
}
/**
* Check whether a language is right-to-left
*
* @param string $lang language code of the language to check
*
* @return bool true if language is rtl
*/
function is_rtl(string $lang_value): bool
{
foreach (common_config('site', 'languages') as $code => $info) {
if ($lang_value == $info['lang']) {
return $info['direction'] == 'rtl';
}
}
}
/**
* Get a list of all languages that are enabled in the default config
*
* @return array mapping of language codes to language info
*/
function get_all_languages(): array
{
return [
'af' => ['q' => 0.8, 'lang' => 'af', 'name' => 'Afrikaans', 'direction' => 'ltr'],
'ar' => ['q' => 0.8, 'lang' => 'ar', 'name' => 'Arabic', 'direction' => 'rtl'],
'ast' => ['q' => 1, 'lang' => 'ast', 'name' => 'Asturian', 'direction' => 'ltr'],
'eu' => ['q' => 1, 'lang' => 'eu', 'name' => 'Basque', 'direction' => 'ltr'],
'be-tarask' => ['q' => 0.5, 'lang' => 'be-tarask', 'name' => 'Belarusian (Taraškievica orthography)', 'direction' => 'ltr'],
'br' => ['q' => 0.8, 'lang' => 'br', 'name' => 'Breton', 'direction' => 'ltr'],
'bg' => ['q' => 0.8, 'lang' => 'bg', 'name' => 'Bulgarian', 'direction' => 'ltr'],
'my' => ['q' => 1, 'lang' => 'my', 'name' => 'Burmese', 'direction' => 'ltr'],
'ca' => ['q' => 0.5, 'lang' => 'ca', 'name' => 'Catalan', 'direction' => 'ltr'],
'zh-cn' => ['q' => 0.9, 'lang' => 'zh_CN', 'name' => 'Chinese (Simplified)', 'direction' => 'ltr'],
'zh-hant' => ['q' => 0.2, 'lang' => 'zh_TW', 'name' => 'Chinese (Taiwanese)', 'direction' => 'ltr'],
'ksh' => ['q' => 1, 'lang' => 'ksh', 'name' => 'Colognian', 'direction' => 'ltr'],
'cs' => ['q' => 0.5, 'lang' => 'cs', 'name' => 'Czech', 'direction' => 'ltr'],
'da' => ['q' => 0.8, 'lang' => 'da', 'name' => 'Danish', 'direction' => 'ltr'],
'nl' => ['q' => 0.5, 'lang' => 'nl', 'name' => 'Dutch', 'direction' => 'ltr'],
'arz' => ['q' => 0.8, 'lang' => 'arz', 'name' => 'Egyptian Spoken Arabic', 'direction' => 'rtl'],
'en' => ['q' => 1, 'lang' => 'en', 'name' => 'English', 'direction' => 'ltr'],
'en-us' => ['q' => 1, 'lang' => 'en', 'name' => 'English (US)', 'direction' => 'ltr'],
'en-gb' => ['q' => 1, 'lang' => 'en_GB', 'name' => 'English (UK)', 'direction' => 'ltr'],
'eo' => ['q' => 0.8, 'lang' => 'eo', 'name' => 'Esperanto', 'direction' => 'ltr'],
'fi' => ['q' => 1, 'lang' => 'fi', 'name' => 'Finnish', 'direction' => 'ltr'],
'fr' => ['q' => 1, 'lang' => 'fr', 'name' => 'French', 'direction' => 'ltr'],
'fr-fr' => ['q' => 1, 'lang' => 'fr', 'name' => 'French (France)', 'direction' => 'ltr'],
'fur' => ['q' => 0.8, 'lang' => 'fur', 'name' => 'Friulian', 'direction' => 'ltr'],
'gl' => ['q' => 0.8, 'lang' => 'gl', 'name' => 'Galician', 'direction' => 'ltr'],
'ka' => ['q' => 0.8, 'lang' => 'ka', 'name' => 'Georgian', 'direction' => 'ltr'],
'de' => ['q' => 0.8, 'lang' => 'de', 'name' => 'German', 'direction' => 'ltr'],
'el' => ['q' => 0.1, 'lang' => 'el', 'name' => 'Greek', 'direction' => 'ltr'],
'he' => ['q' => 0.5, 'lang' => 'he', 'name' => 'Hebrew', 'direction' => 'rtl'],
'hu' => ['q' => 0.8, 'lang' => 'hu', 'name' => 'Hungarian', 'direction' => 'ltr'],
'is' => ['q' => 0.1, 'lang' => 'is', 'name' => 'Icelandic', 'direction' => 'ltr'],
'id' => ['q' => 1, 'lang' => 'id', 'name' => 'Indonesian', 'direction' => 'ltr'],
'ia' => ['q' => 0.8, 'lang' => 'ia', 'name' => 'Interlingua', 'direction' => 'ltr'],
'ga' => ['q' => 0.5, 'lang' => 'ga', 'name' => 'Irish', 'direction' => 'ltr'],
'it' => ['q' => 1, 'lang' => 'it', 'name' => 'Italian', 'direction' => 'ltr'],
'ja' => ['q' => 0.5, 'lang' => 'ja', 'name' => 'Japanese', 'direction' => 'ltr'],
'ko' => ['q' => 0.9, 'lang' => 'ko', 'name' => 'Korean', 'direction' => 'ltr'],
'lv' => ['q' => 1, 'lang' => 'lv', 'name' => 'Latvian', 'direction' => 'ltr'],
'lt' => ['q' => 1, 'lang' => 'lt', 'name' => 'Lithuanian', 'direction' => 'ltr'],
'lb' => ['q' => 1, 'lang' => 'lb', 'name' => 'Luxembourgish', 'direction' => 'ltr'],
'mk' => ['q' => 0.5, 'lang' => 'mk', 'name' => 'Macedonian', 'direction' => 'ltr'],
'mg' => ['q' => 1, 'lang' => 'mg', 'name' => 'Malagasy', 'direction' => 'ltr'],
'ms' => ['q' => 1, 'lang' => 'ms', 'name' => 'Malay', 'direction' => 'ltr'],
'ml' => ['q' => 0.5, 'lang' => 'ml', 'name' => 'Malayalam', 'direction' => 'ltr'],
'ne' => ['q' => 1, 'lang' => 'ne', 'name' => 'Nepali', 'direction' => 'ltr'],
'nb' => ['q' => 0.1, 'lang' => 'nb', 'name' => 'Norwegian (Bokmål)', 'direction' => 'ltr'],
'no' => ['q' => 0.1, 'lang' => 'nb', 'name' => 'Norwegian (Bokmål)', 'direction' => 'ltr'],
'nn' => ['q' => 1, 'lang' => 'nn', 'name' => 'Norwegian (Nynorsk)', 'direction' => 'ltr'],
'fa' => ['q' => 1, 'lang' => 'fa', 'name' => 'Persian', 'direction' => 'rtl'],
'pl' => ['q' => 0.5, 'lang' => 'pl', 'name' => 'Polish', 'direction' => 'ltr'],
'pt' => ['q' => 1, 'lang' => 'pt', 'name' => 'Portuguese', 'direction' => 'ltr'],
'pt-br' => ['q' => 0.9, 'lang' => 'pt_BR', 'name' => 'Brazilian Portuguese', 'direction' => 'ltr'],
'ru' => ['q' => 0.9, 'lang' => 'ru', 'name' => 'Russian', 'direction' => 'ltr'],
'sr-ec' => ['q' => 1, 'lang' => 'sr-ec', 'name' => 'Serbian', 'direction' => 'ltr'],
'es' => ['q' => 1, 'lang' => 'es', 'name' => 'Spanish', 'direction' => 'ltr'],
'sv' => ['q' => 0.8, 'lang' => 'sv', 'name' => 'Swedish', 'direction' => 'ltr'],
'tl' => ['q' => 0.8, 'lang' => 'tl', 'name' => 'Tagalog', 'direction' => 'ltr'],
'ta' => ['q' => 1, 'lang' => 'ta', 'name' => 'Tamil', 'direction' => 'ltr'],
'te' => ['q' => 0.3, 'lang' => 'te', 'name' => 'Telugu', 'direction' => 'ltr'],
'tr' => ['q' => 0.5, 'lang' => 'tr', 'name' => 'Turkish', 'direction' => 'ltr'],
'uk' => ['q' => 1, 'lang' => 'uk', 'name' => 'Ukrainian', 'direction' => 'ltr'],
'hsb' => ['q' => 0.8, 'lang' => 'hsb', 'name' => 'Upper Sorbian', 'direction' => 'ltr'],
'ur' => ['q' => 1, 'lang' => 'ur_PK', 'name' => 'Urdu (Pakistan)', 'direction' => 'rtl'],
'vi' => ['q' => 0.8, 'lang' => 'vi', 'name' => 'Vietnamese', 'direction' => 'ltr'],
];
}
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