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1 | <?php |
2 | ||
3 | /* | |
4 | * This file is part of the Symfony package. | |
5 | * | |
6 | * (c) Fabien Potencier <fabien@symfony.com> | |
7 | * | |
8 | * For the full copyright and license information, please view the LICENSE | |
9 | * 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 | ||
16 | /** | |
17 | * Token Parser for the 'trans' tag. | |
18 | * | |
19 | * @author Fabien Potencier <fabien@symfony.com> | |
20 | */ | |
21 | class TransTokenParser extends \Twig_TokenParser | |
22 | { | |
23 | /** | |
24 | * Parses a token and returns a node. | |
25 | * | |
26 | * @param \Twig_Token $token A Twig_Token instance | |
27 | * | |
28 | * @return \Twig_NodeInterface A Twig_NodeInterface instance | |
29 | * | |
30 | * @throws \Twig_Error_Syntax | |
31 | */ | |
32 | public function parse(\Twig_Token $token) | |
33 | { | |
34 | $lineno = $token->getLine(); | |
35 | $stream = $this->parser->getStream(); | |
36 | ||
37 | $vars = new \Twig_Node_Expression_Array(array(), $lineno); | |
38 | $domain = null; | |
39 | $locale = null; | |
40 | if (!$stream->test(\Twig_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(\Twig_Token::BLOCK_END_TYPE)) { | |
58 | throw new \Twig_Error_Syntax('Unexpected token. Twig was looking for the "with" or "from" keyword.'); | |
59 | } | |
60 | } | |
61 | ||
62 | // {% trans %}message{% endtrans %} | |
63 | $stream->expect(\Twig_Token::BLOCK_END_TYPE); | |
64 | $body = $this->parser->subparse(array($this, 'decideTransFork'), true); | |
65 | ||
66 | if (!$body instanceof \Twig_Node_Text && !$body instanceof \Twig_Node_Expression) { | |
67 | throw new \Twig_Error_Syntax('A message inside a trans tag must be a simple text'); | |
68 | } | |
69 | ||
70 | $stream->expect(\Twig_Token::BLOCK_END_TYPE); | |
71 | ||
72 | return new TransNode($body, $domain, null, $vars, $locale, $lineno, $this->getTag()); | |
73 | } | |
74 | ||
75 | public function decideTransFork($token) | |
76 | { | |
77 | return $token->test(array('endtrans')); | |
78 | } | |
79 | ||
80 | /** | |
81 | * Gets the tag name associated with this token parser. | |
82 | * | |
83 | * @return string The tag name | |
84 | */ | |
85 | public function getTag() | |
86 | { | |
87 | return 'trans'; | |
88 | } | |
89 | } |