scratch – Blame information for rev 87
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Rev | Author | Line No. | Line |
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87 | office | 1 | <?php |
2 | |||
3 | /* |
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4 | * This file is part of the Symfony package. |
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5 | * |
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6 | * (c) Fabien Potencier <fabien@symfony.com> |
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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 | |||
12 | namespace Symfony\Component\CssSelector\XPath\Extension; |
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13 | |||
14 | use Symfony\Component\CssSelector\XPath\Translator; |
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15 | use Symfony\Component\CssSelector\XPath\XPathExpr; |
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16 | |||
17 | /** |
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18 | * XPath expression translator attribute extension. |
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19 | * |
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20 | * This component is a port of the Python cssselect library, |
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21 | * which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect. |
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22 | * |
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23 | * @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com> |
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24 | * |
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25 | * @internal |
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26 | */ |
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27 | class AttributeMatchingExtension extends AbstractExtension |
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28 | { |
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29 | /** |
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30 | * {@inheritdoc} |
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31 | */ |
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32 | public function getAttributeMatchingTranslators() |
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33 | { |
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34 | return array( |
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35 | 'exists' => array($this, 'translateExists'), |
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36 | '=' => array($this, 'translateEquals'), |
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37 | '~=' => array($this, 'translateIncludes'), |
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38 | '|=' => array($this, 'translateDashMatch'), |
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39 | '^=' => array($this, 'translatePrefixMatch'), |
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40 | '$=' => array($this, 'translateSuffixMatch'), |
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41 | '*=' => array($this, 'translateSubstringMatch'), |
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42 | '!=' => array($this, 'translateDifferent'), |
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43 | ); |
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44 | } |
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45 | |||
46 | /** |
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47 | * @param XPathExpr $xpath |
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48 | * @param string $attribute |
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49 | * @param string $value |
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50 | * |
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51 | * @return XPathExpr |
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52 | */ |
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53 | public function translateExists(XPathExpr $xpath, $attribute, $value) |
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54 | { |
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55 | return $xpath->addCondition($attribute); |
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56 | } |
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57 | |||
58 | /** |
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59 | * @param XPathExpr $xpath |
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60 | * @param string $attribute |
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61 | * @param string $value |
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62 | * |
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63 | * @return XPathExpr |
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64 | */ |
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65 | public function translateEquals(XPathExpr $xpath, $attribute, $value) |
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66 | { |
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67 | return $xpath->addCondition(sprintf('%s = %s', $attribute, Translator::getXpathLiteral($value))); |
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68 | } |
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69 | |||
70 | /** |
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71 | * @param XPathExpr $xpath |
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72 | * @param string $attribute |
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73 | * @param string $value |
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74 | * |
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75 | * @return XPathExpr |
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76 | */ |
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77 | public function translateIncludes(XPathExpr $xpath, $attribute, $value) |
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78 | { |
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79 | return $xpath->addCondition($value ? sprintf( |
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80 | '%1$s and contains(concat(\' \', normalize-space(%1$s), \' \'), %2$s)', |
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81 | $attribute, |
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82 | Translator::getXpathLiteral(' '.$value.' ') |
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83 | ) : '0'); |
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84 | } |
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85 | |||
86 | /** |
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87 | * @param XPathExpr $xpath |
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88 | * @param string $attribute |
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89 | * @param string $value |
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90 | * |
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91 | * @return XPathExpr |
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92 | */ |
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93 | public function translateDashMatch(XPathExpr $xpath, $attribute, $value) |
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94 | { |
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95 | return $xpath->addCondition(sprintf( |
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96 | '%1$s and (%1$s = %2$s or starts-with(%1$s, %3$s))', |
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97 | $attribute, |
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98 | Translator::getXpathLiteral($value), |
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99 | Translator::getXpathLiteral($value.'-') |
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100 | )); |
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101 | } |
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102 | |||
103 | /** |
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104 | * @param XPathExpr $xpath |
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105 | * @param string $attribute |
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106 | * @param string $value |
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107 | * |
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108 | * @return XPathExpr |
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109 | */ |
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110 | public function translatePrefixMatch(XPathExpr $xpath, $attribute, $value) |
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111 | { |
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112 | return $xpath->addCondition($value ? sprintf( |
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113 | '%1$s and starts-with(%1$s, %2$s)', |
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114 | $attribute, |
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115 | Translator::getXpathLiteral($value) |
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116 | ) : '0'); |
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117 | } |
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118 | |||
119 | /** |
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120 | * @param XPathExpr $xpath |
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121 | * @param string $attribute |
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122 | * @param string $value |
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123 | * |
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124 | * @return XPathExpr |
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125 | */ |
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126 | public function translateSuffixMatch(XPathExpr $xpath, $attribute, $value) |
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127 | { |
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128 | return $xpath->addCondition($value ? sprintf( |
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129 | '%1$s and substring(%1$s, string-length(%1$s)-%2$s) = %3$s', |
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130 | $attribute, |
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131 | strlen($value) - 1, |
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132 | Translator::getXpathLiteral($value) |
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133 | ) : '0'); |
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134 | } |
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135 | |||
136 | /** |
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137 | * @param XPathExpr $xpath |
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138 | * @param string $attribute |
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139 | * @param string $value |
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140 | * |
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141 | * @return XPathExpr |
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142 | */ |
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143 | public function translateSubstringMatch(XPathExpr $xpath, $attribute, $value) |
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144 | { |
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145 | return $xpath->addCondition($value ? sprintf( |
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146 | '%1$s and contains(%1$s, %2$s)', |
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147 | $attribute, |
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148 | Translator::getXpathLiteral($value) |
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149 | ) : '0'); |
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150 | } |
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151 | |||
152 | /** |
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153 | * @param XPathExpr $xpath |
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154 | * @param string $attribute |
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155 | * @param string $value |
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156 | * |
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157 | * @return XPathExpr |
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158 | */ |
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159 | public function translateDifferent(XPathExpr $xpath, $attribute, $value) |
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160 | { |
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161 | return $xpath->addCondition(sprintf( |
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162 | $value ? 'not(%1$s) or %1$s != %2$s' : '%s != %s', |
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163 | $attribute, |
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164 | Translator::getXpathLiteral($value) |
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165 | )); |
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166 | } |
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167 | |||
168 | /** |
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169 | * {@inheritdoc} |
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170 | */ |
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171 | public function getName() |
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172 | { |
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173 | return 'attribute-matching'; |
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174 | } |
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175 | } |