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<?php
/**
* Parse OPML XML files and store in globals.
*
* @package WordPress
* @subpackage Administration
*/

if ( ! defined('ABSPATH') )
die();

global $opml, $map;

// columns we wish to find are: link_url, link_name, link_target, link_description
// we need to map XML attribute names to our columns
$opml_map = array('URL' => 'link_url',
'HTMLURL' => 'link_url',
'TEXT' => 'link_name',
'TITLE' => 'link_name',
'TARGET' => 'link_target',
'DESCRIPTION' => 'link_description',
'XMLURL' => 'link_rss'
);

$map = $opml_map;

/**
* XML callback function for the start of a new XML tag.
*
* @since unknown
* @access private
*
* @uses $updated_timestamp Not used inside function.
* @uses $all_links Not used inside function.
* @uses $map Stores names of attributes to use.
* @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 $updated_timestamp, $all_links, $map;
global $names, $urls, $targets, $descriptions, $feeds;

if ($tagName == 'OUTLINE') {
foreach (array_keys($map) as $key) {
if (isset($attrs[$key])) {
$$map[$key] = $attrs[$key];
}
}

//echo("got data: link_url = [$link_url], link_name = [$link_name], link_target = [$link_target], link_description = [$link_description]<br />\n");

// save the data away.
$names[] = $link_name;
$urls[] = $link_url;
$targets[] = $link_target;
$feeds[] = $link_rss;
$descriptions[] = $link_description;
} // end if outline
}

/**
* XML callback function that is called at the end of a XML tag.
*
* @since unknown
* @access private
* @package WordPress
* @subpackage Dummy
*
* @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, $opml, true)) {
echo(sprintf(__('XML error: %1$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);
?>
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