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1 <?php |
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2 /** |
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3 * Zend Framework |
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4 * |
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5 * LICENSE |
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6 * |
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7 * This source file is subject to the new BSD license that is bundled |
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8 * with this package in the file LICENSE.txt. |
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9 * It is also available through the world-wide-web at this URL: |
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10 * http://framework.zend.com/license/new-bsd |
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11 * If you did not receive a copy of the license and are unable to |
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12 * obtain it through the world-wide-web, please send an email |
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13 * to license@zend.com so we can send you a copy immediately. |
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14 * |
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15 * @category Zend |
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16 * @package Zend_Markup |
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17 * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com) |
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18 * @license http://framework.zend.com/license/new-bsd New BSD License |
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19 * @version $Id: TokenList.php 20277 2010-01-14 14:17:12Z kokx $ |
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20 */ |
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21 |
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22 /** |
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23 * @see Zend_Markup_Token |
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24 */ |
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25 require_once 'Zend/Markup/Token.php'; |
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26 |
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27 /** |
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28 * @category Zend |
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29 * @package Zend_Markup |
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30 * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com) |
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31 * @license http://framework.zend.com/license/new-bsd New BSD License |
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32 */ |
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33 class Zend_Markup_TokenList implements RecursiveIterator |
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34 { |
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35 |
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36 /** |
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37 * Array of tokens |
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38 * |
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39 * @var array |
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40 */ |
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41 protected $_tokens = array(); |
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42 |
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43 /** |
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44 * Get the current token |
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45 * |
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46 * @return Zend_Markup_Token |
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47 */ |
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48 public function current() |
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49 { |
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50 return current($this->_tokens); |
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51 } |
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52 |
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53 /** |
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54 * Get the children of the current token |
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55 * |
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56 * @return Zend_Markup_TokenList |
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57 */ |
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58 public function getChildren() |
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59 { |
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60 return current($this->_tokens)->getChildren(); |
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61 } |
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62 |
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63 /** |
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64 * Add a new child token |
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65 * |
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66 * @param Zend_Markup_Token $child |
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67 * |
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68 * @return void |
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69 */ |
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70 public function addChild(Zend_Markup_Token $child) |
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71 { |
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72 $this->_tokens[] = $child; |
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73 } |
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74 |
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75 /** |
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76 * Check if the current token has children |
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77 * |
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78 * @return bool |
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79 */ |
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80 public function hasChildren() |
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81 { |
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82 return current($this->_tokens)->hasChildren(); |
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83 } |
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84 |
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85 /** |
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86 * Get the key of the current token |
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87 * |
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88 * @return int |
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89 */ |
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90 public function key() |
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91 { |
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92 return key($this->_tokens); |
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93 } |
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94 |
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95 /** |
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96 * Go to the next token |
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97 * |
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98 * @return Zend_Markup_Token |
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99 */ |
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100 public function next() |
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101 { |
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102 return next($this->_tokens); |
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103 } |
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104 |
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105 /** |
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106 * Rewind the iterator |
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107 * |
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108 * @return void |
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109 */ |
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110 public function rewind() |
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111 { |
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112 reset($this->_tokens); |
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113 } |
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114 |
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115 /** |
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116 * Check if the element is valid |
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117 * |
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118 * @return void |
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119 */ |
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120 public function valid() |
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121 { |
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122 return $this->current() !== false; |
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123 } |
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124 } |