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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; |
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use InvalidArgumentException; |
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use Seboettg\CiteProc\Data\DataList; |
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use Seboettg\CiteProc\Exception\CiteProcException; |
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use Seboettg\CiteProc\Root\Info; |
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use Seboettg\CiteProc\Style\Bibliography; |
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use Seboettg\CiteProc\Style\Citation; |
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use Seboettg\CiteProc\Style\Macro; |
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use Seboettg\CiteProc\Style\Options\GlobalOptions; |
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use Seboettg\CiteProc\Root\Root; |
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use Seboettg\CiteProc\Styles\Css\CssStyle; |
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use Seboettg\CiteProc\Util\CiteProcHelper; |
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use Seboettg\Collection\ArrayList; |
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use SimpleXMLElement; |
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/** |
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* Class CiteProc |
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* @package Seboettg\CiteProc |
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* |
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* @author Sebastian Böttger <[email protected]> |
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*/ |
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class CiteProc |
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{ |
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/** |
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* @var Context |
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*/ |
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private static $context; |
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/** |
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* @return Context |
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*/ |
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public static function getContext() |
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{ |
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return self::$context; |
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} |
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/** |
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* @param Context $context |
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*/ |
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public static function setContext($context) |
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{ |
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self::$context = $context; |
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} |
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private $lang; |
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/** |
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* @var string |
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*/ |
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private $styleSheet; |
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/** |
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* @var SimpleXMLElement |
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*/ |
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private $styleSheetXml; |
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/** |
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* @var array |
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*/ |
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private $markupExtension; |
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/** |
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* CiteProc constructor. |
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* @param string $styleSheet xml formatted csl stylesheet |
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* @param string $lang |
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* @param array $markupExtension |
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*/ |
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public function __construct($styleSheet, $lang = "en-US", $markupExtension = []) |
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{ |
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$this->styleSheet = $styleSheet; |
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$this->lang = $lang; |
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$this->markupExtension = $markupExtension; |
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} |
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public function __destruct() |
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{ |
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self::$context = null; |
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} |
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/** |
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* @param SimpleXMLElement $style |
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* @throws CiteProcException |
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*/ |
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private function parse(SimpleXMLElement $style) |
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{ |
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$root = new Root(); |
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$root->initInheritableNameAttributes($style); |
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self::$context->setRoot($root); |
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$globalOptions = new GlobalOptions($style); |
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self::$context->setGlobalOptions($globalOptions); |
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/** @var SimpleXMLElement $node */ |
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foreach ($style as $node) { |
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$name = $node->getName(); |
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switch ($name) { |
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case 'info': |
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self::$context->setInfo(new Info($node)); |
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break; |
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case 'locale': |
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self::$context->getLocale()->addXml($node); |
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break; |
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case 'macro': |
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$macro = new Macro($node, $root); |
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self::$context->addMacro($macro->getName(), $macro); |
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break; |
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case 'bibliography': |
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$bibliography = new Bibliography($node, $root); |
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self::$context->setBibliography($bibliography); |
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break; |
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case 'citation': |
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$citation = new Citation($node, $root); |
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self::$context->setCitation($citation); |
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break; |
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} |
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} |
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} |
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/** |
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* @param DataList $data |
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* @return string |
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*/ |
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protected function bibliography($data) |
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{ |
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return self::$context->getBibliography()->render($data); |
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} |
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/** |
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* @param DataList $data |
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* @param ArrayList $citationItems |
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* @return string |
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*/ |
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protected function citation($data, $citationItems) |
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{ |
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return self::$context->getCitation()->render($data, $citationItems); |
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} |
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/** |
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* @param array|DataList $data |
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* @param string $mode (citation|bibliography) |
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* @param array $citationItems |
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* @param bool $citationAsArray |
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* @return string |
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* @throws CiteProcException |
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*/ |
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public function render($data, $mode = "bibliography", $citationItems = [], $citationAsArray = false) |
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{ |
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if (is_array($data)) { |
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$data = CiteProcHelper::cloneArray($data); |
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} |
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if (!in_array($mode, ['citation', 'bibliography'])) { |
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throw new InvalidArgumentException("\"$mode\" is not a valid mode."); |
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} |
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$this->init($citationAsArray); //initialize |
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$res = ""; |
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if (is_array($data)) { |
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$data = new DataList($data); |
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} else if (!($data instanceof DataList)) { |
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throw new CiteProcException('No valid format for variable data. Either DataList or array expected'); |
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} |
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switch ($mode) { |
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case 'bibliography': |
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self::$context->setMode($mode); |
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// set CitationItems to Context |
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self::getContext()->setCitationItems($data); |
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$res = $this->bibliography($data); |
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break; |
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case 'citation': |
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if (is_array($citationItems)) { |
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$citationItems = new ArrayList($citationItems); |
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} else if (!($citationItems instanceof ArrayList)) { |
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throw new CiteProcException('No valid format for variable `citationItems`, ArrayList expected.'); |
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} |
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self::$context->setMode($mode); |
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// set CitationItems to Context |
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//self::getContext()->setCitationItems($data); will now set in Layout |
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$res = $this->citation($data, $citationItems); |
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} |
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self::setContext(null); |
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return $res; |
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} |
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/** |
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* initializes CiteProc and start parsing XML stylesheet |
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* @param bool $citationAsArray |
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* @throws CiteProcException |
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*/ |
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public function init($citationAsArray = false) |
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{ |
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self::$context = new Context($this); |
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self::$context->setLocale(new Locale\Locale($this->lang)); //init locale |
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self::$context->setCitationsAsArray($citationAsArray); |
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// set markup extensions |
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self::$context->setMarkupExtension($this->markupExtension); |
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$this->styleSheetXml = new SimpleXMLElement($this->styleSheet); |
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$this->parse($this->styleSheetXml); |
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} |
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/** |
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* @return string |
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* @throws CiteProcException |
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*/ |
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public function renderCssStyles() |
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{ |
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if (self::getContext() === null) { |
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$this->init(); |
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} |
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if (self::getContext()->getCssStyle() == null) { |
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$cssStyle = new CssStyle(self::getContext()->getBibliographySpecificOptions()); |
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self::getContext()->setCssStyle($cssStyle); |
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} |
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return self::getContext()->getCssStyle()->render(); |
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} |
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} |
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seboettg /
citeproc-php
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