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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\Translation\Exception\InvalidResourceException;
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15 use Symfony\Component\Translation\Exception\LogicException;
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16 use Symfony\Component\Yaml\Exception\ParseException;
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17 use Symfony\Component\Yaml\Parser as YamlParser;
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18
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19 /**
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20 * YamlFileLoader loads translations from Yaml files.
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21 *
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22 * @author Fabien Potencier <fabien@symfony.com>
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23 */
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24 class YamlFileLoader extends FileLoader
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25 {
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26 private $yamlParser;
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27
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28 /**
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29 * {@inheritdoc}
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30 */
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31 protected function loadResource($resource)
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32 {
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33 if (null === $this->yamlParser) {
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34 if (!class_exists('Symfony\Component\Yaml\Parser')) {
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35 throw new LogicException('Loading translations from the YAML format requires the Symfony Yaml component.');
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36 }
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37
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38 $this->yamlParser = new YamlParser();
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39 }
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40
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41 $prevErrorHandler = set_error_handler(function ($level, $message, $script, $line) use ($resource, &$prevErrorHandler) {
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42 $message = E_USER_DEPRECATED === $level ? preg_replace('/ on line \d+/', ' in "'.$resource.'"$0', $message) : $message;
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43
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44 return $prevErrorHandler ? $prevErrorHandler($level, $message, $script, $line) : false;
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45 });
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46
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47 try {
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48 $messages = $this->yamlParser->parseFile($resource);
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49 } catch (ParseException $e) {
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50 throw new InvalidResourceException(sprintf('Error parsing YAML, invalid file "%s"', $resource), 0, $e);
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51 } finally {
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52 restore_error_handler();
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53 }
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54
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55 return $messages;
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56 }
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57 }
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