Ticket #9558: bug9558-make-wp_trim_excerpt-filterable.diff

wp-includes/formatting.php

@@ -1627 +1627 @@
  * @return string The excerpt.
  */
 function wp_trim_excerpt($text) {
+        $raw_excerpt = $text;
         if ( '' == $text ) {
                 $text = get_the_content('');
 
@@ -1643 +1644 @@
                         $text = implode(' ', $words);
                 }
         }
-        return $text;
+        return apply_filters('wp_trim_excerpt', $text, $raw_excerpt);
 }
 
 /**