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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\Loader;
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13
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14 use Symfony\Component\Config\Resource\DirectoryResource;
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15 use Symfony\Component\Translation\Exception\InvalidResourceException;
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16 use Symfony\Component\Translation\Exception\NotFoundResourceException;
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17 use Symfony\Component\Translation\MessageCatalogue;
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18
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19 /**
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20 * IcuResFileLoader loads translations from a resource bundle.
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21 *
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22 * @author stealth35
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23 */
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24 class IcuResFileLoader implements LoaderInterface
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25 {
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26 /**
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27 * {@inheritdoc}
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28 */
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29 public function load($resource, $locale, $domain = 'messages')
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30 {
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31 if (!stream_is_local($resource)) {
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32 throw new InvalidResourceException(sprintf('This is not a local file "%s".', $resource));
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33 }
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34
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35 if (!is_dir($resource)) {
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36 throw new NotFoundResourceException(sprintf('File "%s" not found.', $resource));
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37 }
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38
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39 try {
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40 $rb = new \ResourceBundle($locale, $resource);
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41 } catch (\Exception $e) {
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42 // HHVM compatibility: constructor throws on invalid resource
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43 $rb = null;
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44 }
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45
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46 if (!$rb) {
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47 throw new InvalidResourceException(sprintf('Cannot load resource "%s"', $resource));
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48 } elseif (intl_is_failure($rb->getErrorCode())) {
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49 throw new InvalidResourceException($rb->getErrorMessage(), $rb->getErrorCode());
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50 }
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51
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52 $messages = $this->flatten($rb);
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53 $catalogue = new MessageCatalogue($locale);
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54 $catalogue->add($messages, $domain);
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55
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56 if (class_exists('Symfony\Component\Config\Resource\DirectoryResource')) {
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57 $catalogue->addResource(new DirectoryResource($resource));
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58 }
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59
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60 return $catalogue;
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61 }
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62
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63 /**
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64 * Flattens an ResourceBundle.
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65 *
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66 * The scheme used is:
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67 * key { key2 { key3 { "value" } } }
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68 * Becomes:
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69 * 'key.key2.key3' => 'value'
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70 *
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71 * This function takes an array by reference and will modify it
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72 *
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73 * @param \ResourceBundle $rb The ResourceBundle that will be flattened
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74 * @param array $messages Used internally for recursive calls
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75 * @param string $path Current path being parsed, used internally for recursive calls
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76 *
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77 * @return array the flattened ResourceBundle
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78 */
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79 protected function flatten(\ResourceBundle $rb, array &$messages = [], $path = null)
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80 {
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81 foreach ($rb as $key => $value) {
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82 $nodePath = $path ? $path.'.'.$key : $key;
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83 if ($value instanceof \ResourceBundle) {
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84 $this->flatten($value, $messages, $nodePath);
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85 } else {
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86 $messages[$nodePath] = $value;
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87 }
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88 }
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89
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90 return $messages;
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91 }
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92 }
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