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