friendica/include/pgettext.php
2017-04-19 07:05:48 -04:00

195 lines
4.5 KiB
PHP

<?php
/**
* @brief translation support
*
* Get the language setting directly from system variables, bypassing get_config()
* 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");
if(! function_exists('get_browser_language')) {
/**
* @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
if(! function_exists('load_translation_table')) {
/**
* 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
$plugins = q("SELECT name FROM addon WHERE installed=1;");
if ($plugins!==false) {
foreach($plugins as $p) {
$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/$lang/strings.php");
}
}}
// translate string if translation exists
if(! function_exists('t')) {
function t($s) {
$a = get_app();
if(x($a->strings,$s)) {
$t = $a->strings[$s];
return is_array($t)?$t[0]:$t;
}
return $s;
}}
if(! function_exists('tt')){
function tt($singular, $plural, $count){
global $lang;
$a = get_app();
if(x($a->strings,$singular)) {
$t = $a->strings[$singular];
$f = 'string_plural_select_' . str_replace('-','_',$lang);
if(! function_exists($f))
$f = 'string_plural_select_default';
$k = $f($count);
return is_array($t)?$t[$k]:$t;
}
if ($count!=1){
return $plural;
} else {
return $singular;
}
}}
// provide a fallback which will not collide with
// a function defined in any language file
if(! function_exists('string_plural_select_default')) {
function string_plural_select_default($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;
}