vendor/ezyang/htmlpurifier/library/HTMLPurifier/Lexer/PH5P.php

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<?php

/**
 * Experimental HTML5-based parser using Jeroen van der Meer's PH5P library.
 * Occupies space in the HTML5 pseudo-namespace, which may cause conflicts.
 *
 * @note
 *    Recent changes to PHP's DOM extension have resulted in some fatal
 *    error conditions with the original version of PH5P. Pending changes,
 *    this lexer will punt to DirectLex if DOM throws an exception.
 */

class HTMLPurifier_Lexer_PH5P extends HTMLPurifier_Lexer_DOMLex
{
    /**
     * @param string $html
     * @param HTMLPurifier_Config $config
     * @param HTMLPurifier_Context $context
     * @return HTMLPurifier_Token[]
     */
    public function tokenizeHTML($html, $config, $context)
    {
        $new_html = $this->normalize($html, $config, $context);
        $new_html = $this->wrapHTML($new_html, $config, $context, false /* no div */);
        try {
            $parser = new HTML5($new_html);
            $doc = $parser->save();
        } catch (DOMException $e) {
            // Uh oh, it failed. Punt to DirectLex.
            $lexer = new HTMLPurifier_Lexer_DirectLex();
            $context->register('PH5PError', $e); // save the error, so we can detect it
            return $lexer->tokenizeHTML($html, $config, $context); // use original HTML
        }
        $tokens = array();
        $this->tokenizeDOM(
            $doc->getElementsByTagName('html')->item(0)-> // <html>
                  getElementsByTagName('body')->item(0) //   <body>
            ,
            $tokens, $config
        );
        return $tokens;
    }
}

/*

Copyright 2007 Jeroen van der Meer <http://jero.net/>

Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:

The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS