<?php /** * @brief translation support * * Get the language setting directly from system variables, bypassing Config::get() * as database may not yet be configured. * * If possible, we use the value from the browser. * */ use Friendica\Core\Config; require_once "include/dba.php"; /** * @brief get the prefered language from the HTTP_ACCEPT_LANGUAGE header */ function get_browser_language() { 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); $lang_list = []; if (count($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, $dashpos)); } } } } } // check if we have translations for the preferred languages and pick the 1st that has for ($i = 0; $i < count($lang_list); $i++) { $lang = $lang_list[$i]; if ($lang === 'en' || (file_exists("view/lang/$lang") && is_dir("view/lang/$lang"))) { $preferred = $lang; break; } } if (isset($preferred)) { return $preferred; } // in case none matches, get the system wide configured language, or fall back to English return Config::get('system', 'language', 'en'); } function push_lang($language) { global $lang, $a; $a->langsave = $lang; if ($language === $lang) { return; } if (isset($a->strings) && count($a->strings)) { $a->stringsave = $a->strings; } $a->strings = array(); load_translation_table($language); $lang = $language; } function pop_lang() { global $lang, $a; if ($lang === $a->langsave) { return; } if (isset($a->stringsave)) { $a->strings = $a->stringsave; } else { $a->strings = array(); } $lang = $a->langsave; } // l /** * load string translation table for alternate language * * first plugin strings are loaded, then globals * * @param string $lang language code to load */ function load_translation_table($lang) { $a = get_app(); $a->strings = array(); // load enabled plugins strings $plugins = dba::select('addon', array('name'), array('installed' => true)); while ($p = dba::fetch($plugins)) { $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: * - t('This is an example') * - t('URL %s returned no result', $url) * - t('Current version: %s, new version: %s', $current_version, $new_version) * * @param string $s * @return string */ function t($s) { $a = get_app(); if (x($a->strings, $s)) { $t = $a->strings[$s]; $s = is_array($t) ? $t[0] : $t; } if (func_num_args() > 1) { $args = array_slice(func_get_args(), 1); $s = @vsprintf($s, $args); } 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: * - tt('Like', 'Likes', $count) * - tt("%s user deleted", "%s users deleted", count($users)) * * @global type $lang * @param string $singular * @param string $plural * @param int $count * @return string */ function tt($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)) { $plural_function = 'string_plural_select_default'; } $i = $plural_function($count); $s = $t[$i]; } else { $s = $t; } } elseif (string_plural_select_default($count)) { $s = $plural; } else { $s = $singular; } $s = @sprintf($s, $count); return $s; } // provide a fallback which will not collide with // a function defined in any language file function string_plural_select_default($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 */ function get_available_languages() { $langs = array(); $strings_file_paths = glob('view/lang/*/strings.php'); if (is_array($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; }