vendor/symfony/translation/Symfony/Component/Translation/Dumper/IcuResFileDumper.php

   1 <?php
   2
   3 /*
   4  * This file is part of the Symfony package.
   5  *
   6  * (c) Fabien Potencier <fabien@symfony.com>
   7  *
   8  * For the full copyright and license information, please view the LICENSE
   9  * file that was distributed with this source code.
  10  */
  11
  12 namespace Symfony\Component\Translation\Dumper;
  13
  14 use Symfony\Component\Translation\MessageCatalogue;
  15
  16 /**
  17  * IcuResDumper generates an ICU ResourceBundle formatted string representation of a message catalogue.
  18  *
  19  * @author Stealth35
  20  */
  21 class IcuResFileDumper implements DumperInterface
  22 {
  23     /**
  24      * {@inheritDoc}
  25      */
  26     public function dump(MessageCatalogue $messages, $options = array())
  27     {
  28         if (!array_key_exists('path', $options)) {
  29             throw new \InvalidArgumentException('The file dumper need a path options.');
  30         }
  31
  32         // save a file for each domain
  33         foreach ($messages->getDomains() as $domain) {
  34             $file = $messages->getLocale().'.'.$this->getExtension();
  35             $path = $options['path'].'/'.$domain.'/';
  36
  37             if (!file_exists($path)) {
  38                 mkdir($path);
  39             }
  40
  41             // backup
  42             if (file_exists($path.$file)) {
  43                 copy($path.$file, $path.$file.'~');
  44             }
  45
  46             // save file
  47             file_put_contents($path.$file, $this->format($messages, $domain));
  48         }
  49     }
  50
  51     /**
  52      * {@inheritDoc}
  53      */
  54     public function format(MessageCatalogue $messages, $domain = 'messages')
  55     {
  56         $data = $indexes = $resources = '';
  57
  58         foreach ($messages->all($domain) as $source => $target) {
  59             $indexes .= pack('v', strlen($data) + 28);
  60             $data    .= $source."\0";
  61         }
  62
  63         $data .= $this->writePadding($data);
  64
  65         $keyTop = $this->getPosition($data);
  66
  67         foreach ($messages->all($domain) as $source => $target) {
  68             $resources .= pack('V', $this->getPosition($data));
  69
  70             $data .= pack('V', strlen($target))
  71                 .mb_convert_encoding($target."\0", 'UTF-16LE', 'UTF-8')
  72                 .$this->writePadding($data)
  73                   ;
  74         }
  75
  76         $resOffset = $this->getPosition($data);
  77
  78         $data .= pack('v', count($messages))
  79             .$indexes
  80             .$this->writePadding($data)
  81             .$resources
  82               ;
  83
  84         $bundleTop = $this->getPosition($data);
  85
  86         $root = pack('V7',
  87             $resOffset + (2 << 28), // Resource Offset + Resource Type
  88             6,                      // Index length
  89             $keyTop,                // Index keys top
  90             $bundleTop,             // Index resources top
  91             $bundleTop,             // Index bundle top
  92             count($messages),       // Index max table length
  93             0                       // Index attributes
  94         );
  95
  96         $header = pack('vC2v4C12@32',
  97             32,                     // Header size
  98             0xDA, 0x27,             // Magic number 1 and 2
  99             20, 0, 0, 2,            // Rest of the header, ..., Size of a char
 100             0x52, 0x65, 0x73, 0x42, // Data format identifier
 101             1, 2, 0, 0,             // Data version
 102             1, 4, 0, 0              // Unicode version
 103         );
 104
 105         $output = $header
 106                .$root
 107                .$data;
 108
 109         return $output;
 110     }
 111
 112     private function writePadding($data)
 113     {
 114         $padding = strlen($data) % 4;
 115
 116         if ($padding) {
 117             return str_repeat("\xAA", 4 - $padding);
 118         }
 119     }
 120
 121     private function getPosition($data)
 122     {
 123         $position = (strlen($data) + 28) / 4;
 124
 125         return $position;
 126     }
 127
 128     /**
 129      * {@inheritDoc}
 130      */
 131     protected function getExtension()
 132     {
 133         return 'res';
 134     }
 135 }