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<?php
/**
* Display the contents of a graph
*
* Data from the chosen URI is loaded into an EasyRdf\Graph object.
* Then the graph is dumped and printed to the page using the
* $graph->dump() method.
*
* The call to preg_replace() replaces links in the page with
* links back to this dump script.
*
* @package EasyRdf
* @copyright Copyright (c) 2009-2014 Nicholas J Humfrey
* @license http://unlicense.org/
*/
require_once realpath(__DIR__.'/..')."/vendor/autoload.php";
require_once __DIR__."/html_tag_helpers.php";
?>
<html>
<head><title>EasyRdf Graph Dumper</title></head>
<body>
<h1>EasyRdf Graph Dumper</h1>
<div style="margin: 10px">
<?= form_tag() ?>
URI: <?= text_field_tag('uri', 'http://mmt.me.uk/foaf.rdf', array('size'=>80)) ?><br />
Format: <?= label_tag('format_html', 'HTML').' '.radio_button_tag('format', 'html', true) ?>
<?= label_tag('format_text', 'Text').' '.radio_button_tag('format', 'text') ?><br />
<?= submit_tag() ?>
<?= form_end_tag() ?>
</div>
<?php
if (isset($_REQUEST['uri'])) {
$graph = \EasyRdf\Graph::newAndLoad($_REQUEST['uri']);
if ($graph) {
if (isset($_REQUEST['format']) && $_REQUEST['format'] == 'text') {
print "<pre>".$graph->dump('text')."</pre>";
} else {
$dump = $graph->dump('html');
print preg_replace_callback("/ href='([^#][^']*)'/", 'makeLinkLocal', $dump);
}
} else {
print "<p>Failed to create graph.</p>";
}
}
# Callback function to re-write links in the dump to point back to this script
function makeLinkLocal($matches)
{
$href = $matches[1];
return " href='?uri=".urlencode($href)."#$href'";
}
?>
</body>
</html>