<?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, ',')) {
[$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 (https://framework.zend.com/license)
* Copyright (c) 2005-2010 - Zend Technologies USA Inc. (http://www.zend.com)
*
* @param string $locale
* @param int $number
* @return int
*/
public function getPluralIndex($locale, $number)
{
switch ($locale) {
case 'az':
case 'az_AZ':
case 'bo':
case 'bo_CN':
case 'bo_IN':
case 'dz':
case 'dz_BT':
case 'id':
case 'id_ID':
case 'ja':
case 'ja_JP':
case 'jv':
case 'ka':
case 'ka_GE':
case 'km':
case 'km_KH':
case 'kn':
case 'kn_IN':
case 'ko':
case 'ko_KR':
case 'ms':
case 'ms_MY':
case 'th':
case 'th_TH':
case 'tr':
case 'tr_CY':
case 'tr_TR':
case 'vi':
case 'vi_VN':
case 'zh':
case 'zh_CN':
case 'zh_HK':
case 'zh_SG':
case 'zh_TW':
return 0;
case 'af':
case 'af_ZA':
case 'bn':
case 'bn_BD':
case 'bn_IN':
case 'bg':
case 'bg_BG':
case 'ca':
case 'ca_AD':
case 'ca_ES':
case 'ca_FR':
case 'ca_IT':
case 'da':
case 'da_DK':
case 'de':
case 'de_AT':
case 'de_BE':
case 'de_CH':
case 'de_DE':
case 'de_LI':
case 'de_LU':
case 'el':
case 'el_CY':
case 'el_GR':
case 'en':
case 'en_AG':
case 'en_AU':
case 'en_BW':
case 'en_CA':
case 'en_DK':
case 'en_GB':
case 'en_HK':
case 'en_IE':
case 'en_IN':
case 'en_NG':
case 'en_NZ':
case 'en_PH':
case 'en_SG':
case 'en_US':
case 'en_ZA':
case 'en_ZM':
case 'en_ZW':
case 'eo':
case 'eo_US':
case 'es':
case 'es_AR':
case 'es_BO':
case 'es_CL':
case 'es_CO':
case 'es_CR':
case 'es_CU':
case 'es_DO':
case 'es_EC':
case 'es_ES':
case 'es_GT':
case 'es_HN':
case 'es_MX':
case 'es_NI':
case 'es_PA':
case 'es_PE':
case 'es_PR':
case 'es_PY':
case 'es_SV':
case 'es_US':
case 'es_UY':
case 'es_VE':
case 'et':
case 'et_EE':
case 'eu':
case 'eu_ES':
case 'eu_FR':
case 'fa':
case 'fa_IR':
case 'fi':
case 'fi_FI':
case 'fo':
case 'fo_FO':
case 'fur':
case 'fur_IT':
case 'fy':
case 'fy_DE':
case 'fy_NL':
case 'gl':
case 'gl_ES':
case 'gu':
case 'gu_IN':
case 'ha':
case 'ha_NG':
case 'he':
case 'he_IL':
case 'hu':
case 'hu_HU':
case 'is':
case 'is_IS':
case 'it':
case 'it_CH':
case 'it_IT':
case 'ku':
case 'ku_TR':
case 'lb':
case 'lb_LU':
case 'ml':
case 'ml_IN':
case 'mn':
case 'mn_MN':
case 'mr':
case 'mr_IN':
case 'nah':
case 'nb':
case 'nb_NO':
case 'ne':
case 'ne_NP':
case 'nl':
case 'nl_AW':
case 'nl_BE':
case 'nl_NL':
case 'nn':
case 'nn_NO':
case 'no':
case 'om':
case 'om_ET':
case 'om_KE':
case 'or':
case 'or_IN':
case 'pa':
case 'pa_IN':
case 'pa_PK':
case 'pap':
case 'pap_AN':
case 'pap_AW':
case 'pap_CW':
case 'ps':
case 'ps_AF':
case 'pt':
case 'pt_BR':
case 'pt_PT':
case 'so':
case 'so_DJ':
case 'so_ET':
case 'so_KE':
case 'so_SO':
case 'sq':
case 'sq_AL':
case 'sq_MK':
case 'sv':
case 'sv_FI':
case 'sv_SE':
case 'sw':
case 'sw_KE':
case 'sw_TZ':
case 'ta':
case 'ta_IN':
case 'ta_LK':
case 'te':
case 'te_IN':
case 'tk':
case 'tk_TM':
case 'ur':
case 'ur_IN':
case 'ur_PK':
case 'zu':
case 'zu_ZA':
return ($number == 1) ? 0 : 1;
case 'am':
case 'am_ET':
case 'bh':
case 'fil':
case 'fil_PH':
case 'fr':
case 'fr_BE':
case 'fr_CA':
case 'fr_CH':
case 'fr_FR':
case 'fr_LU':
case 'gun':
case 'hi':
case 'hi_IN':
case 'hy':
case 'hy_AM':
case 'ln':
case 'ln_CD':
case 'mg':
case 'mg_MG':
case 'nso':
case 'nso_ZA':
case 'ti':
case 'ti_ER':
case 'ti_ET':
case 'wa':
case 'wa_BE':
case 'xbr':
return (($number == 0) || ($number == 1)) ? 0 : 1;
case 'be':
case 'be_BY':
case 'bs':
case 'bs_BA':
case 'hr':
case 'hr_HR':
case 'ru':
case 'ru_RU':
case 'ru_UA':
case 'sr':
case 'sr_ME':
case 'sr_RS':
case 'uk':
case 'uk_UA':
return (($number % 10 == 1) && ($number % 100 != 11)) ? 0 : ((($number % 10 >= 2) && ($number % 10 <= 4) && (($number % 100 < 10) || ($number % 100 >= 20))) ? 1 : 2);
case 'cs':
case 'cs_CZ':
case 'sk':
case 'sk_SK':
return ($number == 1) ? 0 : ((($number >= 2) && ($number <= 4)) ? 1 : 2);
case 'ga':
case 'ga_IE':
return ($number == 1) ? 0 : (($number == 2) ? 1 : 2);
case 'lt':
case 'lt_LT':
return (($number % 10 == 1) && ($number % 100 != 11)) ? 0 : ((($number % 10 >= 2) && (($number % 100 < 10) || ($number % 100 >= 20))) ? 1 : 2);
case 'sl':
case 'sl_SI':
return ($number % 100 == 1) ? 0 : (($number % 100 == 2) ? 1 : ((($number % 100 == 3) || ($number % 100 == 4)) ? 2 : 3));
case 'mk':
case 'mk_MK':
return ($number % 10 == 1) ? 0 : 1;
case 'mt':
case 'mt_MT':
return ($number == 1) ? 0 : ((($number == 0) || (($number % 100 > 1) && ($number % 100 < 11))) ? 1 : ((($number % 100 > 10) && ($number % 100 < 20)) ? 2 : 3));
case 'lv':
case 'lv_LV':
return ($number == 0) ? 0 : ((($number % 10 == 1) && ($number % 100 != 11)) ? 1 : 2);
case 'pl':
case 'pl_PL':
return ($number == 1) ? 0 : ((($number % 10 >= 2) && ($number % 10 <= 4) && (($number % 100 < 12) || ($number % 100 > 14))) ? 1 : 2);
case 'cy':
case 'cy_GB':
return ($number == 1) ? 0 : (($number == 2) ? 1 : ((($number == 8) || ($number == 11)) ? 2 : 3));
case 'ro':
case 'ro_RO':
return ($number == 1) ? 0 : ((($number == 0) || (($number % 100 > 0) && ($number % 100 < 20))) ? 1 : 2);
case 'ar':
case 'ar_AE':
case 'ar_BH':
case 'ar_DZ':
case 'ar_EG':
case 'ar_IN':
case 'ar_IQ':
case 'ar_JO':
case 'ar_KW':
case 'ar_LB':
case 'ar_LY':
case 'ar_MA':
case 'ar_OM':
case 'ar_QA':
case 'ar_SA':
case 'ar_SD':
case 'ar_SS':
case 'ar_SY':
case 'ar_TN':
case 'ar_YE':
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;
}
}
}