Ticket #15197: 15197.import.keep-trying.diff

parsers.php

@@ -11 +11 @@
  */
 class WXR_Parser {
         function parse( $file ) {
-                if ( extension_loaded( 'simplexml' ) )
+                if ( extension_loaded( 'simplexml' ) ) {
                         $parser = new WXR_Parser_SimpleXML;
-                else if ( extension_loaded( 'xml' ) )
+                        $result = $parser->parse( $file );
+                        if ( ! is_wp_error( $result ) )
+                                return $result;
+                }
+
+                if ( extension_loaded( 'xml' ) ) {
                         $parser = new WXR_Parser_XML;
-                else
-                        $parser = new WXR_Parser_Regex;
+                        $result = $parser->parse( $file );
+                        if ( ! is_wp_error( $result ) )
+                                return $result;
+                }
 
+                $parser = new WXR_Parser_Regex;
                 return $parser->parse( $file );
         }
 }