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- 28.08.2024
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TransTokenParser.php
01 <?php
02
03 /*
04 * This file is part of the Symfony package.
05 *
06 * (c) Fabien Potencier <fabien@symfony.com>
07 *
08 * For the full copyright and license information, please view the LICENSE
09 * file that was distributed with this source code.
10 */
11
12 namespace Symfony\Bridge\Twig\TokenParser;
13
14 use Symfony\Bridge\Twig\Node\TransNode;
15 use Twig\Error\SyntaxError;
16 use Twig\Node\Expression\AbstractExpression;
17 use Twig\Node\Expression\ArrayExpression;
18 use Twig\Node\TextNode;
19 use Twig\Token;
20 use Twig\TokenParser\AbstractTokenParser;
21
22 /**
23 * Token Parser for the 'trans' tag.
24 *
25 * @author Fabien Potencier <fabien@symfony.com>
26 */
27 class TransTokenParser extends AbstractTokenParser
28 {
29 /**
30 * {@inheritdoc}
31 */
32 public function parse(Token $token)
33 {
34 $lineno = $token->getLine();
35 $stream = $this->parser->getStream();
36
37 $vars = new ArrayExpression([], $lineno);
38 $domain = null;
39 $locale = null;
40 if (!$stream->test(Token::BLOCK_END_TYPE)) {
41 if ($stream->test('with')) {
42 // {% trans with vars %}
43 $stream->next();
44 $vars = $this->parser->getExpressionParser()->parseExpression();
45 }
46
47 if ($stream->test('from')) {
48 // {% trans from "messages" %}
49 $stream->next();
50 $domain = $this->parser->getExpressionParser()->parseExpression();
51 }
52
53 if ($stream->test('into')) {
54 // {% trans into "fr" %}
55 $stream->next();
56 $locale = $this->parser->getExpressionParser()->parseExpression();
57 } elseif (!$stream->test(Token::BLOCK_END_TYPE)) {
58 throw new SyntaxError('Unexpected token. Twig was looking for the "with", "from", or "into" keyword.', $stream->getCurrent()->getLine(), $stream->getSourceContext());
59 }
60 }
61
62 // {% trans %}message{% endtrans %}
63 $stream->expect(Token::BLOCK_END_TYPE);
64 $body = $this->parser->subparse([$this, 'decideTransFork'], true);
65
66 if (!$body instanceof TextNode && !$body instanceof AbstractExpression) {
67 throw new SyntaxError('A message inside a trans tag must be a simple text.', $body->getTemplateLine(), $stream->getSourceContext());
68 }
69
70 $stream->expect(Token::BLOCK_END_TYPE);
71
72 return new TransNode($body, $domain, null, $vars, $locale, $lineno, $this->getTag());
73 }
74
75 public function decideTransFork($token)
76 {
77 return $token->test(['endtrans']);
78 }
79
80 /**
81 * {@inheritdoc}
82 */
83 public function getTag()
84 {
85 return 'trans';
86 }
87 }
88