1 | <?php |
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2 | |
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3 | /* |
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4 | * This file is part of the Assetic package, an OpenSky project. |
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5 | * |
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6 | * (c) 2010-2012 OpenSky Project Inc |
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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 Assetic\Extension\Twig; |
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13 | |
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14 | use Assetic\Asset\AssetInterface; |
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15 | use Assetic\Factory\AssetFactory; |
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16 | |
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17 | class AsseticTokenParser extends \Twig_TokenParser |
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18 | { |
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19 | private $factory; |
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20 | private $tag; |
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21 | private $output; |
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22 | private $single; |
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23 | private $extensions; |
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24 | |
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25 | /** |
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26 | * Constructor. |
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27 | * |
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28 | * Attributes can be added to the tag by passing names as the options |
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29 | * array. These values, if found, will be passed to the factory and node. |
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30 | * |
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31 | * @param AssetFactory $factory The asset factory |
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32 | * @param string $tag The tag name |
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33 | * @param string $output The default output string |
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34 | * @param Boolean $single Whether to force a single asset |
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35 | * @param array $extensions Additional attribute names to look for |
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36 | */ |
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37 | public function __construct(AssetFactory $factory, $tag, $output, $single = false, array $extensions = array()) |
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38 | { |
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39 | $this->factory = $factory; |
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40 | $this->tag = $tag; |
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41 | $this->output = $output; |
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42 | $this->single = $single; |
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43 | $this->extensions = $extensions; |
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44 | } |
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45 | |
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46 | public function parse(\Twig_Token $token) |
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47 | { |
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48 | $inputs = array(); |
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49 | $filters = array(); |
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50 | $name = null; |
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51 | $attributes = array( |
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52 | 'output' => $this->output, |
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53 | 'var_name' => 'asset_url', |
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54 | 'vars' => array(), |
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55 | ); |
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56 | |
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57 | $stream = $this->parser->getStream(); |
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58 | while (!$stream->test(\Twig_Token::BLOCK_END_TYPE)) { |
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59 | if ($stream->test(\Twig_Token::STRING_TYPE)) { |
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60 | // '@jquery', 'js/src/core/*', 'js/src/extra.js' |
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61 | $inputs[] = $stream->next()->getValue(); |
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62 | } elseif ($stream->test(\Twig_Token::NAME_TYPE, 'filter')) { |
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63 | // filter='yui_js' |
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64 | $stream->next(); |
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65 | $stream->expect(\Twig_Token::OPERATOR_TYPE, '='); |
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66 | $filters = array_merge($filters, array_filter(array_map('trim', explode(',', $stream->expect(\Twig_Token::STRING_TYPE)->getValue())))); |
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67 | } elseif ($stream->test(\Twig_Token::NAME_TYPE, 'output')) { |
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68 | // output='js/packed/*.js' OR output='js/core.js' |
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69 | $stream->next(); |
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70 | $stream->expect(\Twig_Token::OPERATOR_TYPE, '='); |
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71 | $attributes['output'] = $stream->expect(\Twig_Token::STRING_TYPE)->getValue(); |
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72 | } elseif ($stream->test(\Twig_Token::NAME_TYPE, 'name')) { |
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73 | // name='core_js' |
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74 | $stream->next(); |
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75 | $stream->expect(\Twig_Token::OPERATOR_TYPE, '='); |
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76 | $name = $stream->expect(\Twig_Token::STRING_TYPE)->getValue(); |
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77 | } elseif ($stream->test(\Twig_Token::NAME_TYPE, 'as')) { |
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78 | // as='the_url' |
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79 | $stream->next(); |
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80 | $stream->expect(\Twig_Token::OPERATOR_TYPE, '='); |
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81 | $attributes['var_name'] = $stream->expect(\Twig_Token::STRING_TYPE)->getValue(); |
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82 | } elseif ($stream->test(\Twig_Token::NAME_TYPE, 'debug')) { |
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83 | // debug=true |
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84 | $stream->next(); |
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85 | $stream->expect(\Twig_Token::OPERATOR_TYPE, '='); |
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86 | $attributes['debug'] = 'true' == $stream->expect(\Twig_Token::NAME_TYPE, array('true', 'false'))->getValue(); |
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87 | } elseif ($stream->test(\Twig_Token::NAME_TYPE, 'combine')) { |
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88 | // combine=true |
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89 | $stream->next(); |
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90 | $stream->expect(\Twig_Token::OPERATOR_TYPE, '='); |
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91 | $attributes['combine'] = 'true' == $stream->expect(\Twig_Token::NAME_TYPE, array('true', 'false'))->getValue(); |
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92 | } elseif ($stream->test(\Twig_Token::NAME_TYPE, 'vars')) { |
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93 | // vars=['locale','browser'] |
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94 | $stream->next(); |
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95 | $stream->expect(\Twig_Token::OPERATOR_TYPE, '='); |
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96 | $stream->expect(\Twig_Token::PUNCTUATION_TYPE, '['); |
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97 | |
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98 | while ($stream->test(\Twig_Token::STRING_TYPE)) { |
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99 | $attributes['vars'][] = $stream->expect(\Twig_Token::STRING_TYPE)->getValue(); |
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100 | |
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101 | if (!$stream->test(\Twig_Token::PUNCTUATION_TYPE, ',')) { |
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102 | break; |
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103 | } |
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104 | |
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105 | $stream->next(); |
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106 | } |
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107 | |
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108 | $stream->expect(\Twig_Token::PUNCTUATION_TYPE, ']'); |
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109 | } elseif ($stream->test(\Twig_Token::NAME_TYPE, $this->extensions)) { |
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110 | // an arbitrary configured attribute |
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111 | $key = $stream->next()->getValue(); |
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112 | $stream->expect(\Twig_Token::OPERATOR_TYPE, '='); |
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113 | $attributes[$key] = $stream->expect(\Twig_Token::STRING_TYPE)->getValue(); |
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114 | } else { |
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115 | $token = $stream->getCurrent(); |
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116 | throw new \Twig_Error_Syntax(sprintf('Unexpected token "%s" of value "%s"', \Twig_Token::typeToEnglish($token->getType(), $token->getLine()), $token->getValue()), $token->getLine()); |
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117 | } |
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118 | } |
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119 | |
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120 | $stream->expect(\Twig_Token::BLOCK_END_TYPE); |
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121 | |
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122 | $body = $this->parser->subparse(array($this, 'testEndTag'), true); |
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123 | |
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124 | $stream->expect(\Twig_Token::BLOCK_END_TYPE); |
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125 | |
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126 | if ($this->single && 1 < count($inputs)) { |
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127 | $inputs = array_slice($inputs, -1); |
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128 | } |
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129 | |
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130 | if (!$name) { |
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131 | $name = $this->factory->generateAssetName($inputs, $filters, $attributes); |
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132 | } |
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133 | |
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134 | $asset = $this->factory->createAsset($inputs, $filters, $attributes + array('name' => $name)); |
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135 | |
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136 | return $this->createNode($asset, $body, $inputs, $filters, $name, $attributes, $token->getLine(), $this->getTag()); |
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137 | } |
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138 | |
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139 | public function getTag() |
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140 | { |
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141 | return $this->tag; |
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142 | } |
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143 | |
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144 | public function testEndTag(\Twig_Token $token) |
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145 | { |
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146 | return $token->test(array('end'.$this->getTag())); |
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147 | } |
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148 | |
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149 | protected function createNode(AssetInterface $asset, \Twig_NodeInterface $body, array $inputs, array $filters, $name, array $attributes = array(), $lineno = 0, $tag = null) |
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150 | { |
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151 | return new AsseticNode($asset, $body, $inputs, $filters, $name, $attributes, $lineno, $tag); |
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152 | } |
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153 | } |
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