Verzeichnisstruktur phpBB-3.2.0
- Veröffentlicht
- 06.01.2017
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TranslationNodeVisitor.php
001 <?php
002
003 /*
004 * This file is part of the Symfony package.
005 *
006 * (c) Fabien Potencier <fabien@symfony.com>
007 *
008 * For the full copyright and license information, please view the LICENSE
009 * file that was distributed with this source code.
010 */
011
012 namespace Symfony\Bridge\Twig\NodeVisitor;
013
014 use Symfony\Bridge\Twig\Node\TransNode;
015
016 /**
017 * TranslationNodeVisitor extracts translation messages.
018 *
019 * @author Fabien Potencier <fabien@symfony.com>
020 */
021 class TranslationNodeVisitor extends \Twig_BaseNodeVisitor
022 {
023 const UNDEFINED_DOMAIN = '_undefined';
024
025 private $enabled = false;
026 private $messages = array();
027
028 public function enable()
029 {
030 $this->enabled = true;
031 $this->messages = array();
032 }
033
034 public function disable()
035 {
036 $this->enabled = false;
037 $this->messages = array();
038 }
039
040 public function getMessages()
041 {
042 return $this->messages;
043 }
044
045 /**
046 * {@inheritdoc}
047 */
048 protected function doEnterNode(\Twig_Node $node, \Twig_Environment $env)
049 {
050 if (!$this->enabled) {
051 return $node;
052 }
053
054 if (
055 $node instanceof \Twig_Node_Expression_Filter &&
056 'trans' === $node->getNode('filter')->getAttribute('value') &&
057 $node->getNode('node') instanceof \Twig_Node_Expression_Constant
058 ) {
059 // extract constant nodes with a trans filter
060 $this->messages[] = array(
061 $node->getNode('node')->getAttribute('value'),
062 $this->getReadDomainFromArguments($node->getNode('arguments'), 1),
063 );
064 } elseif (
065 $node instanceof \Twig_Node_Expression_Filter &&
066 'transchoice' === $node->getNode('filter')->getAttribute('value') &&
067 $node->getNode('node') instanceof \Twig_Node_Expression_Constant
068 ) {
069 // extract constant nodes with a trans filter
070 $this->messages[] = array(
071 $node->getNode('node')->getAttribute('value'),
072 $this->getReadDomainFromArguments($node->getNode('arguments'), 2),
073 );
074 } elseif ($node instanceof TransNode) {
075 // extract trans nodes
076 $this->messages[] = array(
077 $node->getNode('body')->getAttribute('data'),
078 $this->getReadDomainFromNode($node->getNode('domain')),
079 );
080 }
081
082 return $node;
083 }
084
085 /**
086 * {@inheritdoc}
087 */
088 protected function doLeaveNode(\Twig_Node $node, \Twig_Environment $env)
089 {
090 return $node;
091 }
092
093 /**
094 * {@inheritdoc}
095 */
096 public function getPriority()
097 {
098 return 0;
099 }
100
101 /**
102 * @param \Twig_Node $arguments
103 * @param int $index
104 *
105 * @return string|null
106 */
107 private function getReadDomainFromArguments(\Twig_Node $arguments, $index)
108 {
109 if ($arguments->hasNode('domain')) {
110 $argument = $arguments->getNode('domain');
111 } elseif ($arguments->hasNode($index)) {
112 $argument = $arguments->getNode($index);
113 } else {
114 return;
115 }
116
117 return $this->getReadDomainFromNode($argument);
118 }
119
120 /**
121 * @param \Twig_Node $node
122 *
123 * @return string|null
124 */
125 private function getReadDomainFromNode(\Twig_Node $node = null)
126 {
127 if (null === $node) {
128 return;
129 }
130
131 if ($node instanceof \Twig_Node_Expression_Constant) {
132 return $node->getAttribute('value');
133 }
134
135 return self::UNDEFINED_DOMAIN;
136 }
137 }
138