Proyectos de Subversion Moodle

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<?php
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/**
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 * Injector that converts configuration directive syntax %Namespace.Directive
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 * to links
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 */
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class HTMLPurifier_Injector_PurifierLinkify extends HTMLPurifier_Injector
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{
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    /**
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     * @type string
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     */
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    public $name = 'PurifierLinkify';
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    /**
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     * @type string
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     */
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    public $docURL;
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    /**
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     * @type array
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     */
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    public $needed = array('a' => array('href'));
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    /**
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     * @param HTMLPurifier_Config $config
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     * @param HTMLPurifier_Context $context
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     * @return string
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     */
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    public function prepare($config, $context)
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    {
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        $this->docURL = $config->get('AutoFormat.PurifierLinkify.DocURL');
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        return parent::prepare($config, $context);
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    }
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    /**
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     * @param HTMLPurifier_Token $token
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     */
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    public function handleText(&$token)
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    {
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        if (!$this->allowsElement('a')) {
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            return;
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        }
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        if (strpos($token->data, '%') === false) {
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            return;
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        }
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        $bits = preg_split('#%([a-z0-9]+\.[a-z0-9]+)#Si', $token->data, -1, PREG_SPLIT_DELIM_CAPTURE);
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        $token = array();
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        // $i = index
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        // $c = count
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        // $l = is link
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        for ($i = 0, $c = count($bits), $l = false; $i < $c; $i++, $l = !$l) {
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            if (!$l) {
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                if ($bits[$i] === '') {
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                    continue;
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                }
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                $token[] = new HTMLPurifier_Token_Text($bits[$i]);
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            } else {
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                $token[] = new HTMLPurifier_Token_Start(
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                    'a',
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                    array('href' => str_replace('%s', $bits[$i], $this->docURL))
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                );
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                $token[] = new HTMLPurifier_Token_Text('%' . $bits[$i]);
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                $token[] = new HTMLPurifier_Token_End('a');
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            }
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        }
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    }
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}
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// vim: et sw=4 sts=4