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-rw-r--r--inc/3rdparty/Twig/TokenParserBroker.php136
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1<?php
2
3/*
4 * This file is part of Twig.
5 *
6 * (c) 2010 Fabien Potencier
7 * (c) 2010 Arnaud Le Blanc
8 *
9 * For the full copyright and license information, please view the LICENSE
10 * file that was distributed with this source code.
11 */
12
13/**
14 * Default implementation of a token parser broker.
15 *
16 * @author Arnaud Le Blanc <arnaud.lb@gmail.com>
17 * @deprecated since 1.12 (to be removed in 2.0)
18 */
19class Twig_TokenParserBroker implements Twig_TokenParserBrokerInterface
20{
21 protected $parser;
22 protected $parsers = array();
23 protected $brokers = array();
24
25 /**
26 * Constructor.
27 *
28 * @param array|Traversable $parsers A Traversable of Twig_TokenParserInterface instances
29 * @param array|Traversable $brokers A Traversable of Twig_TokenParserBrokerInterface instances
30 */
31 public function __construct($parsers = array(), $brokers = array())
32 {
33 foreach ($parsers as $parser) {
34 if (!$parser instanceof Twig_TokenParserInterface) {
35 throw new LogicException('$parsers must a an array of Twig_TokenParserInterface');
36 }
37 $this->parsers[$parser->getTag()] = $parser;
38 }
39 foreach ($brokers as $broker) {
40 if (!$broker instanceof Twig_TokenParserBrokerInterface) {
41 throw new LogicException('$brokers must a an array of Twig_TokenParserBrokerInterface');
42 }
43 $this->brokers[] = $broker;
44 }
45 }
46
47 /**
48 * Adds a TokenParser.
49 *
50 * @param Twig_TokenParserInterface $parser A Twig_TokenParserInterface instance
51 */
52 public function addTokenParser(Twig_TokenParserInterface $parser)
53 {
54 $this->parsers[$parser->getTag()] = $parser;
55 }
56
57 /**
58 * Removes a TokenParser.
59 *
60 * @param Twig_TokenParserInterface $parser A Twig_TokenParserInterface instance
61 */
62 public function removeTokenParser(Twig_TokenParserInterface $parser)
63 {
64 $name = $parser->getTag();
65 if (isset($this->parsers[$name]) && $parser === $this->parsers[$name]) {
66 unset($this->parsers[$name]);
67 }
68 }
69
70 /**
71 * Adds a TokenParserBroker.
72 *
73 * @param Twig_TokenParserBroker $broker A Twig_TokenParserBroker instance
74 */
75 public function addTokenParserBroker(Twig_TokenParserBroker $broker)
76 {
77 $this->brokers[] = $broker;
78 }
79
80 /**
81 * Removes a TokenParserBroker.
82 *
83 * @param Twig_TokenParserBroker $broker A Twig_TokenParserBroker instance
84 */
85 public function removeTokenParserBroker(Twig_TokenParserBroker $broker)
86 {
87 if (false !== $pos = array_search($broker, $this->brokers)) {
88 unset($this->brokers[$pos]);
89 }
90 }
91
92 /**
93 * Gets a suitable TokenParser for a tag.
94 *
95 * First looks in parsers, then in brokers.
96 *
97 * @param string $tag A tag name
98 *
99 * @return null|Twig_TokenParserInterface A Twig_TokenParserInterface or null if no suitable TokenParser was found
100 */
101 public function getTokenParser($tag)
102 {
103 if (isset($this->parsers[$tag])) {
104 return $this->parsers[$tag];
105 }
106 $broker = end($this->brokers);
107 while (false !== $broker) {
108 $parser = $broker->getTokenParser($tag);
109 if (null !== $parser) {
110 return $parser;
111 }
112 $broker = prev($this->brokers);
113 }
114 }
115
116 public function getParsers()
117 {
118 return $this->parsers;
119 }
120
121 public function getParser()
122 {
123 return $this->parser;
124 }
125
126 public function setParser(Twig_ParserInterface $parser)
127 {
128 $this->parser = $parser;
129 foreach ($this->parsers as $tokenParser) {
130 $tokenParser->setParser($parser);
131 }
132 foreach ($this->brokers as $broker) {
133 $broker->setParser($parser);
134 }
135 }
136}