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<?php
/*
Copyright (c) 2005 Steven Armstrong <sa at c-area dot ch>
Copyright (c) 2009 Danilo Segan <danilo@kvota.net>
Copyright (c) 2016 Michal Čihař <michal@cihar.com>
This file is part of MoTranslator.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
namespace PhpMyAdmin\MoTranslator;
class Loader
{
/**
* Loader instance.
*
* @static
*
* @var Loader
*/
private static $_instance;
/**
* Default gettext domain to use.
*
* @var string
*/
private $default_domain = '';
/**
* Configured locale.
*
* @var string
*/
private $locale = '';
/**
* Loaded domains.
*
* @var array
*/
private $domains = array();
/**
* Bound paths for domains.
*
* @var array
*/
private $paths = array('' => './');
/**
* Returns the singleton Loader object.
*
* @return Loader object
*/
public static function getInstance()
{
if (empty(self::$_instance)) {
self::$_instance = new self();
}
return self::$_instance;
}
/**
* Loads global localizaton functions.
*/
public static function loadFunctions()
{
require_once __DIR__ . '/functions.php';
}
/**
* Figure out all possible locale names and start with the most
* specific ones. I.e. for sr_CS.UTF-8@latin, look through all of
* sr_CS.UTF-8@latin, sr_CS@latin, sr@latin, sr_CS.UTF-8, sr_CS, sr.
*
* @param string $locale Locale code
*
* @return array list of locales to try for any POSIX-style locale specification
*/
public static function listLocales($locale)
{
$locale_names = array();
$lang = null;
$country = null;
$charset = null;
$modifier = null;
if ($locale) {
if (preg_match('/^(?P<lang>[a-z]{2,3})' // language code
. '(?:_(?P<country>[A-Z]{2}))?' // country code
. '(?:\\.(?P<charset>[-A-Za-z0-9_]+))?' // charset
. '(?:@(?P<modifier>[-A-Za-z0-9_]+))?$/', // @ modifier
$locale, $matches)) {
extract($matches);
if ($modifier) {
if ($country) {
if ($charset) {
array_push($locale_names, "${lang}_$country.$charset@$modifier");
}
array_push($locale_names, "${lang}_$country@$modifier");
} elseif ($charset) {
array_push($locale_names, "${lang}.$charset@$modifier");
}
array_push($locale_names, "$lang@$modifier");
}
if ($country) {
if ($charset) {
array_push($locale_names, "${lang}_$country.$charset");
}
array_push($locale_names, "${lang}_$country");
} elseif ($charset) {
array_push($locale_names, "${lang}.$charset");
}
array_push($locale_names, $lang);
}
// If the locale name doesn't match POSIX style, just include it as-is.
if (!in_array($locale, $locale_names)) {
array_push($locale_names, $locale);
}
}
return $locale_names;
}
/**
* Returns Translator object for domain or for default domain.
*
* @param string $domain Translation domain
*
* @return Translator
*/
public function getTranslator($domain = '')
{
if (empty($domain)) {
$domain = $this->default_domain;
}
if (!isset($this->domains[$this->locale])) {
$this->domains[$this->locale] = array();
}
if (!isset($this->domains[$this->locale][$domain])) {
if (isset($this->paths[$domain])) {
$base = $this->paths[$domain];
} else {
$base = './';
}
$locale_names = $this->listLocales($this->locale);
$filename = '';
foreach ($locale_names as $locale) {
$filename = "$base/$locale/LC_MESSAGES/$domain.mo";
if (file_exists($filename)) {
break;
}
}
// We don't care about invalid path, we will get fallback
// translator here
$this->domains[$this->locale][$domain] = new Translator($filename);
}
return $this->domains[$this->locale][$domain];
}
/**
* Sets the path for a domain.
*
* @param string $domain Domain name
* @param string $path Path where to find locales
*/
public function bindtextdomain($domain, $path)
{
$this->paths[$domain] = $path;
}
/**
* Sets the default domain.
*
* @param string $domain Domain name
*/
public function textdomain($domain)
{
$this->default_domain = $domain;
}
/**
* Sets a requested locale.
*
* @param string $locale Locale name
*
* @return string Set or current locale
*/
public function setlocale($locale)
{
if (!empty($locale)) {
$this->locale = $locale;
}
return $this->locale;
}
/**
* Detects currently configured locale.
*
* It checks:
*
* - global lang variable
* - environment for LC_ALL, LC_MESSAGES and LANG
*
* @return string with locale name
*/
public function detectlocale()
{
if (isset($GLOBALS['lang'])) {
return $GLOBALS['lang'];
} elseif (getenv('LC_ALL')) {
return getenv('LC_ALL');
} elseif (getenv('LC_MESSAGES')) {
return getenv('LC_MESSAGES');
} elseif (getenv('LANG')) {
return getenv('LANG');
}
return 'en';
}
}
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