? autop-pcre-limit_3.patch
Index: modules/filter/filter.module
===================================================================
RCS file: /cvs/drupal/drupal/modules/filter/filter.module,v
retrieving revision 1.204.2.14
diff -u -p -r1.204.2.14 filter.module
--- modules/filter/filter.module	28 May 2010 11:29:39 -0000	1.204.2.14
+++ modules/filter/filter.module	28 May 2010 13:44:52 -0000
@@ -932,7 +932,8 @@ function _filter_autop($text) {
       $chunk = preg_replace('!(<'. $block .'[^>]*>)!', "\n$1", $chunk); // Space things out a little
       $chunk = preg_replace('!(</'. $block .'>)!', "$1\n\n", $chunk); // Space things out a little
       $chunk = preg_replace("/\n\n+/", "\n\n", $chunk); // take care of duplicates
-      $chunk = preg_replace('/\n?(.+?)(?:\n\s*\n|\z)/s', "<p>$1</p>\n", $chunk); // make paragraphs, including one at the end
+      $chunk = preg_replace('/^\n|\n\s*\n$/', '', $chunk);
+      $chunk = '<p>'. preg_replace('/\n\s*\n\n?(.)/', "</p>\n<p>$1", $chunk) ."</p>\n"; // make paragraphs, including one at the end
       $chunk = preg_replace("|<p>(<li.+?)</p>|", "$1", $chunk); // problem with nested lists
       $chunk = preg_replace('|<p><blockquote([^>]*)>|i', "<blockquote$1><p>", $chunk);
       $chunk = str_replace('</blockquote></p>', '</p></blockquote>', $chunk);