MessageSelector.php
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<?php
namespace Illuminate\Translation;
use Illuminate\Support\Str;
class MessageSelector
{
/**
* Select a proper translation string based on the given number.
*
* @param string $line
* @param int $number
* @param string $locale
* @return mixed
*/
public function choose($line, $number, $locale)
{
$segments = explode('|', $line);
if (($value = $this->extract($segments, $number)) !== null) {
return trim($value);
}
$segments = $this->stripConditions($segments);
$pluralIndex = $this->getPluralIndex($locale, $number);
if (count($segments) == 1 || ! isset($segments[$pluralIndex])) {
return $segments[0];
}
return $segments[$pluralIndex];
}
/**
* Extract a translation string using inline conditions.
*
* @param array $segments
* @param int $number
* @return mixed
*/
private function extract($segments, $number)
{
foreach ($segments as $part) {
if (! is_null($line = $this->extractFromString($part, $number))) {
return $line;
}
}
}
/**
* Get the translation string if the condition matches.
*
* @param string $part
* @param int $number
* @return mixed
*/
private function extractFromString($part, $number)
{
preg_match('/^[\{\[]([^\[\]\{\}]*)[\}\]](.*)/s', $part, $matches);
if (count($matches) != 3) {
return;
}
$condition = $matches[1];
$value = $matches[2];
if (Str::contains($condition, ',')) {
list($from, $to) = explode(',', $condition, 2);
if ($to == '*' && $number >= $from) {
return $value;
} elseif ($from == '*' && $number <= $to) {
return $value;
} elseif ($number >= $from && $number <= $to) {
return $value;
}
}
return $condition == $number ? $value : null;
}
/**
* Strip the inline conditions from each segment, just leaving the text.
*
* @param array $segments
* @return array
*/
private function stripConditions($segments)
{
return collect($segments)->map(function ($part) {
return preg_replace('/^[\{\[]([^\[\]\{\}]*)[\}\]]/', '', $part);
})->all();
}
/**
* Get the index to use for pluralization.
*
* The plural rules are derived from code of the Zend Framework (2010-09-25), which
* is subject to the new BSD license (http://framework.zend.com/license/new-bsd)
* Copyright (c) 2005-2010 - Zend Technologies USA Inc. (http://www.zend.com)
*
* @param string $locale
* @param int $number
* @return int
*/
public function getPluralIndex($locale, $number)
{
$allowed_langs = config('localizer.allowed_langs');
switch ($locale) {
case 'az':
case 'bo':
case 'dz':
case 'id':
case 'id-ID':
case 'ja':
case 'jv':
case 'ka':
case 'km':
case 'kn':
case 'ko':
case 'ms':
case 'th':
case 'tr':
case 'vi':
case 'vi-VN':
case 'zh':
case 'zh-TW':
return 0;
break;
case 'af':
case 'bn':
case 'bg':
case 'bg-BG':
case 'ca':
case 'da':
case 'da-DK':
case 'de':
case 'de-DE':
case 'el':
case 'el-GR':
case 'en':
case 'en-AU':
case 'en-GB':
case 'en-US':
case 'eo':
case 'es':
case 'es-ES':
case 'es-MX':
case 'et':
case 'eu':
case 'fa':
case 'fi':
case 'fo':
case 'fur':
case 'fy':
case 'gl':
case 'gu':
case 'ha':
case 'he':
case 'hu':
case 'is':
case 'it':
case 'it-IT':
case 'ku':
case 'lb':
case 'ml':
case 'mn':
case 'mr':
case 'nah':
case 'nb':
case 'nb-NO':
case 'ne':
case 'nl':
case 'nl-NL':
case 'nn':
case 'no':
case 'om':
case 'or':
case 'pa':
case 'pap':
case 'ps':
case 'pt':
case 'so':
case 'sq':
case 'sq-AL':
case 'sv':
case 'sv-SE':
case 'sw':
case 'ta':
case 'te':
case 'tk':
case 'tr-TR':
case 'ur':
case 'zu':
return ($number == 1) ? 0 : 1;
case 'am':
case 'bh':
case 'fil':
case 'fr':
case 'fr-FR':
case 'gun':
case 'hi':
case 'hy':
case 'ln':
case 'mg':
case 'nso':
case 'pt-BR':
case 'xbr':
case 'ti':
case 'wa':
return (($number == 0) || ($number == 1)) ? 0 : 1;
case 'be':
case 'bs':
case 'hr':
case 'hr-HR':
case 'ru':
case 'ru-RU':
case 'sr':
case 'uk':
return (($number % 10 == 1) && ($number % 100 != 11)) ? 0 : ((($number % 10 >= 2) && ($number % 10 <= 4) && (($number % 100 < 10) || ($number % 100 >= 20))) ? 1 : 2);
case 'cs':
case 'cs-CZ':
case 'sk':
return ($number == 1) ? 0 : ((($number >= 2) && ($number <= 4)) ? 1 : 2);
case 'ga':
return ($number == 1) ? 0 : (($number == 2) ? 1 : 2);
case 'lt':
return (($number % 10 == 1) && ($number % 100 != 11)) ? 0 : ((($number % 10 >= 2) && (($number % 100 < 10) || ($number % 100 >= 20))) ? 1 : 2);
case 'sl':
return ($number % 100 == 1) ? 0 : (($number % 100 == 2) ? 1 : ((($number % 100 == 3) || ($number % 100 == 4)) ? 2 : 3));
case 'mk':
return ($number % 10 == 1) ? 0 : 1;
case 'mt':
return ($number == 1) ? 0 : ((($number == 0) || (($number % 100 > 1) && ($number % 100 < 11))) ? 1 : ((($number % 100 > 10) && ($number % 100 < 20)) ? 2 : 3));
case 'lv':
return ($number == 0) ? 0 : ((($number % 10 == 1) && ($number % 100 != 11)) ? 1 : 2);
case 'pl':
return ($number == 1) ? 0 : ((($number % 10 >= 2) && ($number % 10 <= 4) && (($number % 100 < 12) || ($number % 100 > 14))) ? 1 : 2);
case 'cy':
return ($number == 1) ? 0 : (($number == 2) ? 1 : ((($number == 8) || ($number == 11)) ? 2 : 3));
case 'ro':
return ($number == 1) ? 0 : ((($number == 0) || (($number % 100 > 0) && ($number % 100 < 20))) ? 1 : 2);
case 'ar':
return ($number == 0) ? 0 : (($number == 1) ? 1 : (($number == 2) ? 2 : ((($number % 100 >= 3) && ($number % 100 <= 10)) ? 3 : ((($number % 100 >= 11) && ($number % 100 <= 99)) ? 4 : 5))));
default:
return 0;
}
}
}