Extension:TransformChanges.php

<?

1. Extension:TransformChanges
2. - See http://www.mediawiki.org/Extension:TransformChanges for installation and usage details
3. - Licenced under LGPL (http://www.gnu.org/copyleft/lesser.html)

if (!defined('MEDIAWIKI')) die('Not an entry point.');

define('TRANSFORMCHANGES_VERSION','1.0.8, 2008-02-07');

$wgExtensionCredits['other'][] = array(

       'name'        => 'TransformChanges',
       'author'      => 'User:Nad',
       'description' => 'Makes recent-changes and watchlists render in nice columns for easier reading.',
       'url'         => 'http://www.organicdesign.co.nz/Extension:TransformChanges',
       'version'     => TRANSFORMCHANGES_VERSION

);

1. 1. Returns the position of the $n-th $c token (string) in $haystack (= position at the end of the token)

function strposn($haystack, $c, $n) {

       $a = explode($c, $haystack, $n+1);
       if($n <= 0 || count($a) <= $n)
               return false;
       return strlen($haystack) - strlen($a[$n]);

}

1. Disable enhanced recent changes

$wgExtensionFunctions[] = 'wfSetupTransformChanges'; function wfSetupTransformChanges() {

       global $wgUser;
       $wgUser->setOption('usenewrc',false);

}

$wgHooks['SpecialPageExecuteAfterPage'][] = 'wfTransformChanges'; function wfTransformChanges() {

       global $wgOut;
       $title = $wgOut->getPageTitle();
       if ($title != wfMsgForContent('recentchanges') && $title != wfMsgForContent('watchlist')) return true;
       $text =& $wgOut->mBodytext;

$text = preg_replace('|(\\s*)?

(.+?)

\\s*(

)
• |s','$3
• ',$text);

         ## Edits by Fish1203
         ## (http://www.mediawiki.org/wiki/User:Fish1203)
         ## solving the PHP preg_replace_callback() pcre.backtrack_limit problem
  
         ## splitting in days
  

  $parts = explode('
  ',$text); $first = 1; $nbedits = 50; $text = $parts[0] . ""; foreach($parts as $part) { if ($first == 1) { ## skipping first part (= Special:RecentChanges "header") $first = 0; } else { $nbsubparts = (substr_count($part,"") - 1); ## how many edits for this day ?

                         ## if more than $nbedits edits for this day
                         if ($nbsubparts > $nbedits) {             
                                 $divide = intval(abs($nbsubparts/$nbedits));
  
                                 ## splits each day in parts containing $nbedits edits (max.)
                                 $start = 0;
                                 $parts2 = array();
                                 for($lp=0; $lp<$divide; $lp++) {
  

  $parts2[$lp] = substr($part, $start, (strposn($part,"",($lp+1)*$nbedits))-$start ); $start = (strposn($part,"",($lp+1)*$nbedits));

                                 }
                                 $parts2[$divide] = substr($part, $start, strlen($part));   ## last part for the day
  
                                 foreach($parts2 as $part2) {
  

  $part2 = '
  ' . $part2 . '
  '; $text .= preg_replace_callback('|
  (.+?)
  |s','wfTransformChangesUL',$part2);

                                 }
                         }
                         else {
  

  $part = '
  ' . $part . '
  '; $text .= preg_replace_callback('|
  (.+?)
  |s','wfTransformChangesUL',$part);

                         }
                 }
         }
  
  

  ## there may be one last tag remaining...

         ## just remove it... :-)
  

  $text = str_replace("","",$text); $text .= "";

         return true;
  

  }

  function wfTransformChangesUL($match) {

         global $wgTransformChangesRow;
         $wgTransformChangesRow = 'odd';               ## was originally $wgTransformChangesRow = 0
  

  $rows = preg_replace_callback('|<li\\s*(.*?)>(.+?)|s','wfTransformChangesLI',$match[1]);

         return $rows;
  

  }

  function wfTransformChangesLI($match) {

         global $wgTransformChangesRow,$wgSimpleSecurity;
         $wgTransformChangesRow = $wgTransformChangesRow == 'even' ? 'odd' : 'even';
         list(,$date,$text) = $match;
         $cols = array('time','title','user','talk','info','comment','diff');
         $ncols = count($cols);
         $row = ;
  

  $error = 'Error: match failed!';

         if ($date) {
  

  $row = "$date\n";

                 $wgTransformChangesRow = 'even';
         }
  

  $row .= ""; if (preg_match('|^(.*?); (\\d+:\\d+)(.+?)(<a.+?\\))\\s*(.*?)$|',$text,$m)) { list(,$diff,$time,$bytes,$user,$comment) = $m; if (preg_match('|^(.+\\)).*?\\. \\.\\s*(.*?)\\s*(<a.+)$|',$diff,$m)) list(,$diff,$info,$title) = $m; else $info = $title = ; if (preg_match('|(\\(.+?\\))|',$bytes,$m)) $info .= "$m[1]"; if (preg_match('|(<a.+?</a>).+?(\\(.+?\\))|',$user,$m)) { # Remove talk for email or IP users and make user lowercase list(,$user,$talk) = $m; if (ereg('@',$user) || !eregi('[a-z]',$user)) { $talk = ; $user = strtolower($user); } } if (preg_match('|\\((.+)\\)|',$comment,$m)) $comment = $m[1]; $allowed = true; if (preg_match('|title="(.+?)"|',$title,$m) && is_object($wgSimpleSecurity)) { # Only show row if ok by SimpleSecurity extension $t = Title::newFromText($m[1]); $allowed = $wgSimpleSecurity->validateTitle('view',$t); } if ($allowed) foreach ($cols as $col) $row .= "{$$col}";

                 } else $row = $error;
  

  $row .= "\n"; return $row; } ?>