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File: XMLParserHandler.php

<?php

/**
 * @file classes/xml/XMLParserHandler.php
 *
 * Copyright (c) 2014-2021 Simon Fraser University
 * Copyright (c) 2000-2021 John Willinsky
 * Distributed under the GNU GPL v3. For full terms see the file docs/COPYING.
 *
 * @class XMLParserHandler
 *
 * @ingroup xml
 *
 * @brief Interface for handler class used by PKPXMLParser.
 * All XML parser handler classes must implement these methods.
 */

namespace PKP\xml;

class XMLParserHandler
{
    /**
     * Callback function to act as the start element handler.
     *
     * @param PKPXMLParser $parser
     * @param string $tag
     * @param array $attributes
     */
    public function startElement($parser, $tag, $attributes)
    {
    }

    /**
     * Callback function to act as the end element handler.
     *
     * @param PKPXMLParser $parser
     * @param string $tag
     */
    public function endElement($parser, $tag)
    {
    }

    /**
     * Callback function to act as the character data handler.
     *
     * @param PKPXMLParser $parser
     * @param string $data
     */
    public function characterData($parser, $data)
    {
    }

    /**
     * Returns a resulting data structure representing the parsed content.
     * The format of this object is specific to the handler.
     */
    public function getResult()
    {
        return null;
    }

    /**
     * Perform clean up for this object
     *
     * @deprecated
     */
    public function destroy()
    {
    }
}

if (!PKP_STRICT_MODE) {
    class_alias('\PKP\xml\XMLParserHandler', '\XMLParserHandler');
}