<?php

/**

 * Parse OPML XML files and store in globals.

 *

 * @package WordPress

 * @subpackage Administration

 */

if ( ! defined('ABSPATH') )

	die();

global $opml;

/**

 * XML callback function for the start of a new XML tag.

 *

 * @since 0.71

 * @access private

 *

 * @global array $names

 * @global array $urls

 * @global array $targets

 * @global array $descriptions

 * @global array $feeds

 *

 * @param mixed $parser XML Parser resource.

 * @param string $tagName XML element name.

 * @param array $attrs XML element attributes.

 */

function startElement($parser, $tagName, $attrs) {

	global $names, $urls, $targets, $descriptions, $feeds;

	if ( 'OUTLINE' === $tagName ) {

		$name = '';

		if ( isset( $attrs['TEXT'] ) ) {

			$name = $attrs['TEXT'];

		}

		if ( isset( $attrs['TITLE'] ) ) {

			$name = $attrs['TITLE'];

		}

		$url = '';

		if ( isset( $attrs['URL'] ) ) {

			$url = $attrs['URL'];

		}

		if ( isset( $attrs['HTMLURL'] ) ) {

			$url = $attrs['HTMLURL'];

		}

		// Save the data away.

		$names[] = $name;

		$urls[] = $url;

		$targets[] = isset( $attrs['TARGET'] ) ? $attrs['TARGET'] :  '';

		$feeds[] = isset( $attrs['XMLURL'] ) ? $attrs['XMLURL'] :  '';

		$descriptions[] = isset( $attrs['DESCRIPTION'] ) ? $attrs['DESCRIPTION'] :  '';

	} // End if outline.

}

/**

 * XML callback function that is called at the end of a XML tag.

 *

 * @since 0.71

 * @access private

 *

 * @param mixed $parser XML Parser resource.

 * @param string $tagName XML tag name.

 */

function endElement($parser, $tagName) {

	// Nothing to do.

}

// Create an XML parser

$xml_parser = xml_parser_create();

// Set the functions to handle opening and closing tags

xml_set_element_handler($xml_parser, "startElement", "endElement");

if ( ! xml_parse( $xml_parser, $opml, true ) ) {

	printf(

		/* translators: 1: error message, 2: line number */

		__( 'XML Error: %1$s at line %2$s' ),

		xml_error_string( xml_get_error_code( $xml_parser ) ),

		xml_get_current_line_number( $xml_parser )

	);

}

// Free up memory used by the XML parser

xml_parser_free($xml_parser);