vendor/nesbot/carbon/src/Carbon/Translator.php

   1 <?php
   2
   3 namespace Carbon;
   4
   5 use Symfony\Component\Translation;
   6
   7 class Translator extends Translation\Translator
   8 {
   9     /**
  10      * Singleton for Translator.
  11      *
  12      * @var static
  13      */
  14     protected static $singleton;
  15
  16     /**
  17      * List of custom localized messages.
  18      *
  19      * @var array
  20      */
  21     protected static $messages = array();
  22
  23     /**
  24      * Return a singleton instance of Translator.
  25      *
  26      * @param string|null $locale optional initial locale ("en" - english by default)
  27      *
  28      * @return static
  29      */
  30     public static function get($locale = null)
  31     {
  32         if (static::$singleton === null) {
  33             static::$singleton = new static($locale ?: 'en');
  34         }
  35
  36         return static::$singleton;
  37     }
  38
  39     public function __construct($locale, Translation\Formatter\MessageFormatterInterface $formatter = null, $cacheDir = null, $debug = false)
  40     {
  41         $this->addLoader('array', new Translation\Loader\ArrayLoader());
  42         parent::__construct($locale, $formatter, $cacheDir, $debug);
  43     }
  44
  45     /**
  46      * Reset messages of a locale (all locale if no locale passed).
  47      * Remove custom messages and reload initial messages from matching
  48      * file in Lang directory.
  49      *
  50      * @param string|null $locale
  51      *
  52      * @return bool
  53      */
  54     public function resetMessages($locale = null)
  55     {
  56         if ($locale === null) {
  57             static::$messages = array();
  58
  59             return true;
  60         }
  61
  62         if (file_exists($filename = __DIR__.'/Lang/'.$locale.'.php')) {
  63             static::$messages[$locale] = require $filename;
  64             $this->addResource('array', static::$messages[$locale], $locale);
  65
  66             return true;
  67         }
  68
  69         return false;
  70     }
  71
  72     /**
  73      * Init messages language from matching file in Lang directory.
  74      *
  75      * @param string $locale
  76      *
  77      * @return bool
  78      */
  79     protected function loadMessagesFromFile($locale)
  80     {
  81         if (isset(static::$messages[$locale])) {
  82             return true;
  83         }
  84
  85         return $this->resetMessages($locale);
  86     }
  87
  88     /**
  89      * Set messages of a locale and take file first if present.
  90      *
  91      * @param string $locale
  92      * @param array  $messages
  93      *
  94      * @return $this
  95      */
  96     public function setMessages($locale, $messages)
  97     {
  98         $this->loadMessagesFromFile($locale);
  99         $this->addResource('array', $messages, $locale);
 100         static::$messages[$locale] = array_merge(
 101             isset(static::$messages[$locale]) ? static::$messages[$locale] : array(),
 102             $messages
 103         );
 104
 105         return $this;
 106     }
 107
 108     /**
 109      * Get messages of a locale, if none given, return all the
 110      * languages.
 111      *
 112      * @param string|null $locale
 113      *
 114      * @return array
 115      */
 116     public function getMessages($locale = null)
 117     {
 118         return $locale === null ? static::$messages : static::$messages[$locale];
 119     }
 120
 121     /**
 122      * Set the current translator locale and indicate if the source locale file exists
 123      *
 124      * @param string $locale locale ex. en
 125      *
 126      * @return bool
 127      */
 128     public function setLocale($locale)
 129     {
 130         $locale = preg_replace_callback('/[-_]([a-z]{2,})/', function ($matches) {
 131             // _2-letters is a region, _3+-letters is a variant
 132             return '_'.call_user_func(strlen($matches[1]) > 2 ? 'ucfirst' : 'strtoupper', $matches[1]);
 133         }, strtolower($locale));
 134
 135         if ($this->loadMessagesFromFile($locale)) {
 136             parent::setLocale($locale);
 137
 138             return true;
 139         }
 140
 141         return false;
 142     }
 143 }