scratch – Blame information for rev 87
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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\Parser\Tokenizer; |
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13 | |||
14 | /** |
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15 | * CSS selector tokenizer patterns builder. |
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16 | * |
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17 | * This component is a port of the Python cssselect library, |
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18 | * which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect. |
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19 | * |
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20 | * @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com> |
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21 | * |
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22 | * @internal |
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23 | */ |
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24 | class TokenizerPatterns |
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25 | { |
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26 | /** |
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27 | * @var string |
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28 | */ |
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29 | private $unicodeEscapePattern; |
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30 | |||
31 | /** |
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32 | * @var string |
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33 | */ |
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34 | private $simpleEscapePattern; |
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35 | |||
36 | /** |
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37 | * @var string |
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38 | */ |
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39 | private $newLineEscapePattern; |
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40 | |||
41 | /** |
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42 | * @var string |
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43 | */ |
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44 | private $escapePattern; |
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45 | |||
46 | /** |
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47 | * @var string |
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48 | */ |
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49 | private $stringEscapePattern; |
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50 | |||
51 | /** |
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52 | * @var string |
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53 | */ |
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54 | private $nonAsciiPattern; |
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55 | |||
56 | /** |
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57 | * @var string |
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58 | */ |
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59 | private $nmCharPattern; |
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60 | |||
61 | /** |
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62 | * @var string |
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63 | */ |
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64 | private $nmStartPattern; |
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65 | |||
66 | /** |
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67 | * @var string |
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68 | */ |
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69 | private $identifierPattern; |
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70 | |||
71 | /** |
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72 | * @var string |
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73 | */ |
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74 | private $hashPattern; |
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75 | |||
76 | /** |
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77 | * @var string |
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78 | */ |
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79 | private $numberPattern; |
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80 | |||
81 | /** |
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82 | * @var string |
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83 | */ |
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84 | private $quotedStringPattern; |
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85 | |||
86 | /** |
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87 | * Constructor. |
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88 | */ |
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89 | public function __construct() |
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90 | { |
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91 | $this->unicodeEscapePattern = '\\\\([0-9a-f]{1,6})(?:\r\n|[ \n\r\t\f])?'; |
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92 | $this->simpleEscapePattern = '\\\\(.)'; |
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93 | $this->newLineEscapePattern = '\\\\(?:\n|\r\n|\r|\f)'; |
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94 | $this->escapePattern = $this->unicodeEscapePattern.'|\\\\[^\n\r\f0-9a-f]'; |
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95 | $this->stringEscapePattern = $this->newLineEscapePattern.'|'.$this->escapePattern; |
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96 | $this->nonAsciiPattern = '[^\x00-\x7F]'; |
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97 | $this->nmCharPattern = '[_a-z0-9-]|'.$this->escapePattern.'|'.$this->nonAsciiPattern; |
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98 | $this->nmStartPattern = '[_a-z]|'.$this->escapePattern.'|'.$this->nonAsciiPattern; |
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99 | $this->identifierPattern = '(?:'.$this->nmStartPattern.')(?:'.$this->nmCharPattern.')*'; |
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100 | $this->hashPattern = '#((?:'.$this->nmCharPattern.')+)'; |
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101 | $this->numberPattern = '[+-]?(?:[0-9]*\.[0-9]+|[0-9]+)'; |
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102 | $this->quotedStringPattern = '([^\n\r\f%s]|'.$this->stringEscapePattern.')*'; |
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103 | } |
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104 | |||
105 | /** |
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106 | * @return string |
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107 | */ |
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108 | public function getNewLineEscapePattern() |
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109 | { |
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110 | return '~^'.$this->newLineEscapePattern.'~'; |
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111 | } |
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112 | |||
113 | /** |
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114 | * @return string |
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115 | */ |
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116 | public function getSimpleEscapePattern() |
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117 | { |
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118 | return '~^'.$this->simpleEscapePattern.'~'; |
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119 | } |
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120 | |||
121 | /** |
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122 | * @return string |
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123 | */ |
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124 | public function getUnicodeEscapePattern() |
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125 | { |
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126 | return '~^'.$this->unicodeEscapePattern.'~i'; |
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127 | } |
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128 | |||
129 | /** |
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130 | * @return string |
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131 | */ |
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132 | public function getIdentifierPattern() |
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133 | { |
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134 | return '~^'.$this->identifierPattern.'~i'; |
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135 | } |
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136 | |||
137 | /** |
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138 | * @return string |
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139 | */ |
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140 | public function getHashPattern() |
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141 | { |
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142 | return '~^'.$this->hashPattern.'~i'; |
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143 | } |
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144 | |||
145 | /** |
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146 | * @return string |
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147 | */ |
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148 | public function getNumberPattern() |
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149 | { |
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150 | return '~^'.$this->numberPattern.'~'; |
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151 | } |
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152 | |||
153 | /** |
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154 | * @param string $quote |
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155 | * |
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156 | * @return string |
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157 | */ |
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158 | public function getQuotedStringPattern($quote) |
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159 | { |
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160 | return '~^'.sprintf($this->quotedStringPattern, $quote).'~i'; |
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161 | } |
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162 | } |