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<?php |
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/* |
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* citeproc-php |
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* |
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* @link http://github.com/seboettg/citeproc-php for the source repository |
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* @copyright Copyright (c) 2016 Sebastian Böttger. |
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* @license https://opensource.org/licenses/MIT |
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*/ |
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namespace Seboettg\CiteProc\Rendering\Choose; |
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use Seboettg\CiteProc\Data\DataList; |
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use Seboettg\CiteProc\Exception\ClassNotFoundException; |
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use Seboettg\CiteProc\Exception\InvalidStylesheetException; |
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use Seboettg\CiteProc\Rendering\HasParent; |
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use Seboettg\CiteProc\Rendering\Rendering; |
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use Seboettg\Collection\ArrayList; |
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use SimpleXMLElement; |
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/** |
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* Class Choose |
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* @package Seboettg\CiteProc\Node |
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* |
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* @author Sebastian Böttger <[email protected]> |
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*/ |
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class Choose implements Rendering, HasParent |
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{ |
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/** |
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* @var ArrayList |
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*/ |
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private $children; |
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private $parent; |
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/** |
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* Choose constructor. |
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* @param SimpleXMLElement $node |
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* @param $parent |
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* @throws ClassNotFoundException |
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* @throws InvalidStylesheetException |
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*/ |
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public function __construct(SimpleXMLElement $node, $parent) |
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{ |
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$this->parent = $parent; |
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$this->children = new ArrayList(); |
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$elseIf = []; |
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foreach ($node->children() as $child) { |
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switch ($child->getName()) { |
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case 'if': |
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$this->children->add("if", new ChooseIf($child, $this)); |
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break; |
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case 'else-if': |
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$elseIf[] = new ChooseElseIf($child, $this); |
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break; |
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case 'else': |
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$this->children->add("else", new ChooseElse($child, $this)); |
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break; |
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} |
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} |
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if (!empty($elseIf)) { |
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$this->children->add("elseif", $elseIf); |
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} |
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} |
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/** |
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* @param array|DataList $data |
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* @param null|int $citationNumber |
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* @return string |
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*/ |
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public function render($data, $citationNumber = null) |
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{ |
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$arr = []; |
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// IF |
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if ($prevCondition = $this->children->get("if")->match($data)) { |
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$arr[] = $this->children->get("if")->render($data); |
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} else if (!$prevCondition && $this->children->hasKey("elseif")) { // ELSEIF |
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/** @var ChooseElseIf $child */ |
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foreach ($this->children->get("elseif") as $child) { |
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$condition = $child->match($data); |
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if ($condition && !$prevCondition) { |
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$arr[] = $child->render($data); |
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$prevCondition = true; |
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break; //break loop as soon as condition matches |
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} |
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$prevCondition = $condition; |
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} |
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} |
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//ELSE |
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if (!$prevCondition && $this->children->hasKey("else")) { |
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$arr[] = $this->children->get("else")->render($data); |
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} |
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return implode("", $arr); |
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} |
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/** |
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* @return mixed |
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*/ |
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public function getParent() |
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{ |
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return $this->parent; |
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} |
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} |
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seboettg /
citeproc-php
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