--- comment_notify.module	2010-03-11 05:29:40.000000000 +0700
+++ comment_notify.module	2010-04-18 22:49:30.000000000 +0700
@@ -357,6 +357,7 @@ function comment_notify_user($type, &$ed
  *   The comment array as found in hook_comment $op = publish.
  */
 function _comment_notify_mailalert($comment) {
+  $tempcommteaser = $comment['comment'];
   $comment = (object) $comment;
   global $language;
   global $base_url;
@@ -364,6 +365,7 @@ function _comment_notify_mailalert($comm
 
   $nid = $comment->nid;
   $cid = $comment->cid;
+  $commteaser = truncate($tempcommteaser, 50, "...");
 
   // Check to see if a notification has already been sent for this
   // comment so that edits to a comment don't trigger an additional
@@ -415,6 +417,7 @@ function _comment_notify_mailalert($comm
         '!commname' => $comment->name,
         '!commtext' => drupal_html_to_text($comment_text),
         '!commsubj' => $comment->subject,
+		'!commteaser' => $commteaser,
         '!comment_url' => url('node/'. $nid, array('absolute' => TRUE, 'fragment' => 'comment-'. $cid)),
         '!node_title' =>  $node->title,
         '!node_teaser' => drupal_html_to_text($node_teaser),
@@ -475,6 +478,7 @@ function _comment_notify_mailalert($comm
           '!commname' => $comment->name,
           '!commtext' => drupal_html_to_text($comment_text),
           '!commsubj' => $comment->subject,
+          '!commteaser' => $commteaser,
           '!comment_url' => url('node/'. $nid, array('absolute' => TRUE, 'fragment' => 'comment-'. $cid)),
           '!node_title' =>  $node->title,
           '!node_teaser' => drupal_html_to_text($node_teaser),
@@ -654,6 +658,7 @@ function comment_notify_settings() {
       <li>!commname = the username who posted the comment</li>
       <li>!commtext = the text of the posted comment</li>
       <li>!commsubj = the subject of the posted comment</li>
+      <li>!commteaser = a 50-character teaser of the posted comment</li>
       <li>!comment_url = the full url of the post and comment - note: if you have paging enabled, this does not work correct - set your max comments per page so that all fit on one page or reverse order them</li>
       <li>!nid = the node id the comment was posted on</li>
       <li>!node_title = the title of the node that was commented on</li>
@@ -686,6 +691,7 @@ function comment_notify_settings() {
       <li>!commname = the username who posted the comment</li>
       <li>!commtext = the text of the posted comment</li>
       <li>!commsubj = the subject of the posted comment</li>
+      <li>!commteaser = a 50-character teaser of the posted comment</li>
       <li>!comment_url = the full url of the post and comment - note: if you have paging enabled, this does not work correct - set your max comments per page so that all fit on one page or reverse order them</li>
       <li>!nid = the node id the comment was posted on</li>
       <li>!node_title = the title of the node that was commented on</li>
@@ -721,3 +727,23 @@ function comment_notify_settings_validat
     form_set_error('comment_notify_available_alerts', 'You must enable at least one subscription mode.');
   }
 }
+
+/*	truncate function added to truncate comment text  */
+
+function truncate($text,$numb,$etc = "...") {
+if (strlen($text) > $numb) {
+$text = substr($text, 0, $numb);
+$text = substr($text,0,strrpos($text," "));
+
+$punctuation = ".!?:;,-"; //punctuation you want removed
+
+$text = (strspn(strrev($text),  $punctuation)!=0)
+        ?
+        substr($text, 0, -strspn(strrev($text),  $punctuation))
+        :
+$text;
+
+$text = $text.$etc;
+}
+return $text;
+}