--- modules\node\node.module.1.911	Tue Nov 27 20:21:42 2007
+++ modules\node\node.module	Tue Nov 27 21:04:55 2007
@@ -238,14 +238,20 @@ function node_teaser_js(&$form, &$form_s
 /**
  * Automatically generate a teaser for a node body.
  *
+ * If the end of the teaser is not indicated using the special delimiter
+ * then we try to end the teaser at a sensible place - i.e. the end of a
+ * paragraph, or a line break, or the end of a sentence.
+ *
  * @param $body
  *   The content for which a teaser will be generated.
  * @param $format
  *   The format of the content. If the content contains PHP code, we do not
- *   split it up to prevent parse errors.
+ *   split it up to prevent parse errors; if the line break filter is present
+ *   then we treat newlines embedded in $body as line breaks.
  * @param $size
  *   The desired character length of the teaser. If omitted, the default
- *   value will be used.
+ *   value will be used. Ignored if the special delimiter is present
+ *   in $body. 
  * @return
  *   The generated teaser.
  */
@@ -279,7 +285,7 @@ function node_teaser($body, $format = NU
   }
 
   // If we have a short body, the entire body is the teaser.
-  if (strlen($body) < $size) {
+  if (strlen($body) <= $size) {
     return $body;
   }
 
@@ -308,8 +314,15 @@ function node_teaser($body, $format = NU
   // A paragraph near the end of sliced teaser is most preferable.
   $break_points[] = array('</p>' => 0);
 
-  // Other line breaks often indicate a paragraph.
-  $break_points[] = array('<br />' => 6, '<br>' => 4, "\n" => 1);
+  // If no complete paragraph then treat line breaks as paragraphs.
+  // Newline only indicates a line break if line break converter
+  // filter is present.
+  if (isset($filters['filter/1'])) {
+    $break_points[] = array('<br />' => 6, '<br>' => 4, "\n" => 1);
+  }
+  else {
+    $break_points[] = array('<br />' => 6, '<br>' => 4);
+  }
 
   // If the first paragraph is too long, split at the end of a sentence.
   $break_points[] = array('. ' => 1, '! ' => 1, '? ' => 1, '。' => 0, '؟ ' => 1);