<?
$p=array("/\n----+/","/\n( +.*".")\n/","/\t(.*):\t/","/''''''/","/'''(.*)'''/","/''(.*)''/","/\n+/","/\n\*\*(".".*)/","/\n\*/","/(([A-Z][a-z]+){2,})/");

$r=array("\n<hr/>","<pre>\\1</pre>","<dt>\\1<dd>","","<strong>\\1</strong>","<em>\\1</em>","<p></p>\n","<ul><li>". "\\1</ul>","<li>","<a href=\"?\\1\">\\1</a>");

foreach($_GET as $key => $value) {if($key!="a"&&$key!="PHPSESSID"){$firstw=$key;break;}}

$w=($firstw) ?preg_replace("/[\.'.'\/ ]/","",$firstw):"HomePage";

    $t=(file_exists("files/$w"))?file_get_contents("files/$w"):'Enter the page information here.';

    $a=(isset($_REQUEST['a']))?$_REQUEST['a']:"view";

    if(!file_exists("files/$w")&&($a!='save')){
        $is_formated = preg_replace("/(([A-Z][a-z]+){2,})/","work",$w);
        if($is_formated != "work") {echo 'The page name you provided is not in the correct format.  Please check the name and try again.';exit();}
        $a='edit';}

    switch($a){
        case'edit':
            require('ipBAN.php');
            echo'<form method="POST" action="'.$_SERVER["REQUEST_URI"].'">
            <input type="hidden" name="" value="'.$w.'">When you finish editing this page you can click this <input type="submit" name="a" value="save"> to the document.'.
    '  Please keep it clean.<br><textarea name="t" cols="90" rows="24">'.$t .'</textarea></form>';
            break;

        case'save':
            $t=$_REQUEST['t'];
            $old =(file_exists("files/$w"))?file_get_contents("files/$w"):"NULL";
            $f=fopen("files/$w",'w+');
            $t=stripslashes($t);
            fwrite($f,$t);
            fclose($f);

        default: 
            echo '<h1><a href="'. $_SERVER["HTTP_REFERER"].'">'.$w.'</a>'.'</h1>'.preg_replace($p, $r, $t);
            echo'<hr>Click <a href="?'. $w.'&a=edit">here</a> to edit this page.<br>';
            echo'Click <a href="?files">here</a> to view all the pages.';
            break;
        }}

?>