dirroot.'/filter/tex/lib.php');
if (!filter_is_enabled('filter/tex')) {
error ('Filter not enabled!');
}
error_reporting(E_ALL);
$texexp = urldecode($_SERVER['QUERY_STRING']);
$texexp = str_replace('formdata=','',$texexp);
if ($texexp) {
$image = md5($texexp) . ".gif";
$filetype = 'image/gif';
if (!file_exists("$CFG->dataroot/filter/tex")) {
make_upload_directory("filter/tex");
}
$texexp = str_replace('<','<',$texexp);
$texexp = str_replace('>','>',$texexp);
$texexp = preg_replace('!\r\n?!',' ',$texexp);
$pathname = "$CFG->dataroot/filter/tex/$image";
$cmd = tex_filter_get_cmd($pathname, $texexp);
system($cmd, $status);
if (file_exists($pathname)) {
require_once($CFG->libdir . '/filelib.php');
send_file($pathname, $image);
} else {
echo "Image not found!";
}
exit;
} else {
echo "No tex expresion specified";
}
?>
mimeTeX Previewer
Now enter your own expression or use the sample provided,
press the Submit button, and mimeTeX's rendering should be
displayed in the little window immediately below it.