245 lines
6.3 KiB
PHP
245 lines
6.3 KiB
PHP
<?php
|
|
/**
|
|
* @file src/Core/L10n.php
|
|
*/
|
|
namespace Friendica\Core;
|
|
|
|
use Friendica\Core\Config;
|
|
use dba;
|
|
|
|
require_once 'boot.php';
|
|
require_once 'include/dba.php';
|
|
|
|
/**
|
|
* Provide Languange, Translation, and Localisation functions to the application
|
|
* Localisation can be referred to by the numeronym L10N (as in: "L", followed by ten more letters, and then "N").
|
|
*/
|
|
class L10n
|
|
{
|
|
/**
|
|
* @brief get the prefered language from the HTTP_ACCEPT_LANGUAGE header
|
|
*/
|
|
public static function getBrowserLanguage()
|
|
{
|
|
$lang_list = [];
|
|
|
|
if (x($_SERVER, 'HTTP_ACCEPT_LANGUAGE')) {
|
|
// break up string into pieces (languages and q factors)
|
|
preg_match_all('/([a-z]{1,8}(-[a-z]{1,8})?)\s*(;\s*q\s*=\s*(1|0\.[0-9]+))?/i', $_SERVER['HTTP_ACCEPT_LANGUAGE'], $lang_parse);
|
|
|
|
if (count($lang_parse[1])) {
|
|
// go through the list of prefered languages and add a generic language
|
|
// for sub-linguas (e.g. de-ch will add de) if not already in array
|
|
for ($i = 0; $i < count($lang_parse[1]); $i++) {
|
|
$lang_list[] = strtolower($lang_parse[1][$i]);
|
|
if (strlen($lang_parse[1][$i])>3) {
|
|
$dashpos = strpos($lang_parse[1][$i], '-');
|
|
if (!in_array(substr($lang_parse[1][$i], 0, $dashpos), $lang_list)) {
|
|
$lang_list[] = strtolower(substr($lang_parse[1][$i], 0, $dashpos));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// check if we have translations for the preferred languages and pick the 1st that has
|
|
foreach ($lang_list as $lang) {
|
|
if ($lang === 'en' || (file_exists("view/lang/$lang") && is_dir("view/lang/$lang"))) {
|
|
$preferred = $lang;
|
|
break;
|
|
}
|
|
}
|
|
if (isset($preferred)) {
|
|
return $preferred;
|
|
}
|
|
|
|
// in case none matches, get the system wide configured language, or fall back to English
|
|
return Config::get('system', 'language', 'en');
|
|
}
|
|
|
|
/**
|
|
* @param string $language language
|
|
*/
|
|
public static function pushLang($language)
|
|
{
|
|
global $lang, $a;
|
|
|
|
$a->langsave = $lang;
|
|
|
|
if ($language === $lang) {
|
|
return;
|
|
}
|
|
|
|
if (isset($a->strings) && count($a->strings)) {
|
|
$a->stringsave = $a->strings;
|
|
}
|
|
$a->strings = [];
|
|
self::loadTranslationTable($language);
|
|
$lang = $language;
|
|
}
|
|
|
|
/**
|
|
* Pop language off the top of the stack
|
|
*/
|
|
public static function popLang()
|
|
{
|
|
global $lang, $a;
|
|
|
|
if ($lang === $a->langsave) {
|
|
return;
|
|
}
|
|
|
|
if (isset($a->stringsave)) {
|
|
$a->strings = $a->stringsave;
|
|
} else {
|
|
$a->strings = [];
|
|
}
|
|
|
|
$lang = $a->langsave;
|
|
}
|
|
|
|
/**
|
|
* load string translation table for alternate language
|
|
*
|
|
* first addon strings are loaded, then globals
|
|
*
|
|
* @param string $lang language code to load
|
|
*/
|
|
public static function loadTranslationTable($lang)
|
|
{
|
|
$a = get_app();
|
|
|
|
$a->strings = [];
|
|
// load enabled addons strings
|
|
$addons = dba::select('addon', ['name'], ['installed' => true]);
|
|
while ($p = dba::fetch($addons)) {
|
|
$name = $p['name'];
|
|
if (file_exists("addon/$name/lang/$lang/strings.php")) {
|
|
include "addon/$name/lang/$lang/strings.php";
|
|
}
|
|
}
|
|
|
|
if (file_exists("view/lang/$lang/strings.php")) {
|
|
include "view/lang/$lang/strings.php";
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief Return the localized version of the provided string with optional string interpolation
|
|
*
|
|
* This function takes a english string as parameter, and if a localized version
|
|
* exists for the current language, substitutes it before performing an eventual
|
|
* string interpolation (sprintf) with additional optional arguments.
|
|
*
|
|
* Usages:
|
|
* - L10n::t('This is an example')
|
|
* - L10n::t('URL %s returned no result', $url)
|
|
* - L10n::t('Current version: %s, new version: %s', $current_version, $new_version)
|
|
*
|
|
* @param string $s
|
|
* @param array $vars Variables to interpolate in the translation string
|
|
* @return string
|
|
*/
|
|
public static function t($s, ...$vars)
|
|
{
|
|
$a = get_app();
|
|
|
|
if (x($a->strings, $s)) {
|
|
$t = $a->strings[$s];
|
|
$s = is_array($t) ? $t[0] : $t;
|
|
}
|
|
|
|
if (count($vars) > 0) {
|
|
$s = sprintf($s, ...$vars);
|
|
}
|
|
|
|
return $s;
|
|
}
|
|
|
|
/**
|
|
* @brief Return the localized version of a singular/plural string with optional string interpolation
|
|
*
|
|
* This function takes two english strings as parameters, singular and plural, as
|
|
* well as a count. If a localized version exists for the current language, they
|
|
* are used instead. Discrimination between singular and plural is done using the
|
|
* localized function if any or the default one. Finally, a string interpolation
|
|
* is performed using the count as parameter.
|
|
*
|
|
* Usages:
|
|
* - L10n::tt('Like', 'Likes', $count)
|
|
* - L10n::tt("%s user deleted", "%s users deleted", count($users))
|
|
*
|
|
* @global type $lang
|
|
* @param string $singular
|
|
* @param string $plural
|
|
* @param int $count
|
|
* @return string
|
|
*/
|
|
public static function tt($singular, $plural, $count)
|
|
{
|
|
global $lang;
|
|
$a = get_app();
|
|
|
|
if (x($a->strings, $singular)) {
|
|
$t = $a->strings[$singular];
|
|
if (is_array($t)) {
|
|
$plural_function = 'string_plural_select_' . str_replace('-', '_', $lang);
|
|
if (function_exists($plural_function)) {
|
|
$i = $plural_function($count);
|
|
} else {
|
|
$i = self::stringPluralSelectDefault($count);
|
|
}
|
|
$s = $t[$i];
|
|
} else {
|
|
$s = $t;
|
|
}
|
|
} elseif (self::stringPluralSelectDefault($count)) {
|
|
$s = $plural;
|
|
} else {
|
|
$s = $singular;
|
|
}
|
|
|
|
$s = @sprintf($s, $count);
|
|
|
|
return $s;
|
|
}
|
|
|
|
/**
|
|
* Provide a fallback which will not collide with a function defined in any language file
|
|
*/
|
|
private static function stringPluralSelectDefault($n)
|
|
{
|
|
return $n != 1;
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* @brief Return installed languages codes as associative array
|
|
*
|
|
* Scans the view/lang directory for the existence of "strings.php" files, and
|
|
* returns an alphabetical list of their folder names (@-char language codes).
|
|
* Adds the english language if it's missing from the list.
|
|
*
|
|
* Ex: array('de' => 'de', 'en' => 'en', 'fr' => 'fr', ...)
|
|
*
|
|
* @return array
|
|
*/
|
|
public static function getAvailableLanguages()
|
|
{
|
|
$langs = [];
|
|
$strings_file_paths = glob('view/lang/*/strings.php');
|
|
|
|
if (is_array($strings_file_paths) && count($strings_file_paths)) {
|
|
if (!in_array('view/lang/en/strings.php', $strings_file_paths)) {
|
|
$strings_file_paths[] = 'view/lang/en/strings.php';
|
|
}
|
|
asort($strings_file_paths);
|
|
foreach ($strings_file_paths as $strings_file_path) {
|
|
$path_array = explode('/', $strings_file_path);
|
|
$langs[$path_array[2]] = $path_array[2];
|
|
}
|
|
}
|
|
return $langs;
|
|
}
|
|
}
|