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htmlpurifier/benchmarks/Lexer.php

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<?php
require_once '../library/HTMLPurifier.auto.php';
@include_once '../test-settings.php';
// PEAR
require_once 'Benchmark/Timer.php'; // to do the timing
require_once 'Text/Password.php'; // for generating random input
$LEXERS = array();
$RUNS = isset($GLOBALS['HTMLPurifierTest']['Runs'])
? $GLOBALS['HTMLPurifierTest']['Runs'] : 2;
require_once 'HTMLPurifier/Lexer/DirectLex.php';
$LEXERS['DirectLex'] = new HTMLPurifier_Lexer_DirectLex();
if (version_compare(PHP_VERSION, '5', '>=')) {
require_once 'HTMLPurifier/Lexer/DOMLex.php';
$LEXERS['DOMLex'] = new HTMLPurifier_Lexer_DOMLex();
}
// custom class to aid unit testing
class RowTimer extends Benchmark_Timer
{
public $name;
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public function __construct($name, $auto = false)
{
$this->name = htmlentities($name);
$this->Benchmark_Timer($auto);
}
public function getOutput()
{
$total = $this->TimeElapsed();
$result = $this->getProfiling();
$dashes = '';
$out = '<tr>';
$out .= "<td>{$this->name}</td>";
$standard = false;
foreach ($result as $k => $v) {
if ($v['name'] == 'Start' || $v['name'] == 'Stop') continue;
//$perc = (($v['diff'] * 100) / $total);
//$tperc = (($v['total'] * 100) / $total);
//$out .= '<td align="right">' . $v['diff'] . '</td>';
if ($standard == false) $standard = $v['diff'];
$perc = $v['diff'] * 100 / $standard;
$bad_run = ($v['diff'] < 0);
$out .= '<td align="right"'.
($bad_run ? ' style="color:#AAA;"' : '').
'>' . number_format($perc, 2, '.', '') .
'%</td><td>'.number_format($v['diff'],4,'.','').'</td>';
}
$out .= '</tr>';
return $out;
}
}
function print_lexers()
{
global $LEXERS;
$first = true;
foreach ($LEXERS as $key => $value) {
if (!$first) echo ' / ';
echo htmlspecialchars($key);
$first = false;
}
}
function do_benchmark($name, $document)
{
global $LEXERS, $RUNS;
$config = HTMLPurifier_Config::createDefault();
$context = new HTMLPurifier_Context();
$timer = new RowTimer($name);
$timer->start();
foreach($LEXERS as $key => $lexer) {
for ($i=0; $i<$RUNS; $i++) $tokens = $lexer->tokenizeHTML($document, $config, $context);
$timer->setMarker($key);
}
$timer->stop();
$timer->display();
}
?>
<html>
<head>
<title>Benchmark: <?php print_lexers(); ?></title>
</head>
<body>
<h1>Benchmark: <?php print_lexers(); ?></h1>
<table border="1">
<tr><th>Case</th><?php
foreach ($LEXERS as $key => $value) {
echo '<th colspan="2">' . htmlspecialchars($key) . '</th>';
}
?></tr>
<?php
// ************************************************************************** //
// sample of html pages
$dir = 'samples/Lexer';
$dh = opendir($dir);
while (false !== ($filename = readdir($dh))) {
if (strpos($filename, '.html') !== strlen($filename) - 5) continue;
$document = file_get_contents($dir . '/' . $filename);
do_benchmark("File: $filename", $document);
}
// crashers, caused infinite loops before
$snippets = array();
$snippets[] = '<a href="foo>';
$snippets[] = '<a "=>';
foreach ($snippets as $snippet) {
do_benchmark($snippet, $snippet);
}
// random input
$random = Text_Password::create(80, 'unpronounceable', 'qwerty <>="\'');
do_benchmark('Random input', $random);
?></table>
<?php
echo '<div>Random input was: ' .
'<span colspan="4" style="font-family:monospace;">' .
htmlspecialchars($random) . '</span></div>';
?>
</body></html>
<?php
// vim: et sw=4 sts=4