Index: skeleton/xml/DomXSLProcessor.class.php
===================================================================
--- skeleton/xml/DomXSLProcessor.class.php	(revision 12010)
+++ skeleton/xml/DomXSLProcessor.class.php	(working copy)
@@ -5,6 +5,7 @@
  */
 
   uses(
+    'xml.Tree',
     'xml.TransformerException',
     'io.FileNotFoundException',
     'xml.IXSLProcessor',
@@ -127,13 +128,29 @@
     }
 
     /**
+     * Set XSL from a tree
+     *
+     * @param   xml.Tree xsl
+     */
+    public function setXSLTree(Tree $xsl) {
+      libxml_get_last_error() && libxml_clear_errors();
+
+      $this->stylesheet= new DOMDocument();
+      $this->stylesheet->loadXML($xsl->getDeclaration().$xsl->getSource(INDENT_NONE));
+      strlen($this->_base) && $this->stylesheet->documentURI= $this->_base;
+      $this->baseURI= $this->_base.':tree';
+      
+      $this->_checkErrors($xsl);
+    }
+
+    /**
      * Set XML file
      *
      * @param   string file file name
      */
     public function setXMLFile($file) {
       if (!file_exists($this->_base.$file)) {
-        throw(new FileNotFoundException($this->_base.$file.' not found'));
+        throw new FileNotFoundException($this->_base.$file.' not found');
       }
       
       libxml_get_last_error() && libxml_clear_errors();
@@ -159,6 +176,20 @@
     }
 
     /**
+     * Set XML from a tree
+     *
+     * @param   xml.Tree xml
+     */
+    public function setXMLTree(Tree $xml) {
+      libxml_get_last_error() && libxml_clear_errors();
+
+      $this->document= new DOMDocument();
+      $this->document->loadXML($xml->getDeclaration().$xml->getSource(INDENT_NONE));
+
+      $this->_checkErrors($xml);
+    }
+
+    /**
      * Set XSL transformation parameters
      *
      * @param   array params associative array { param_name => param_value }
Index: skeleton/xml/IXSLProcessor.class.php
===================================================================
--- skeleton/xml/IXSLProcessor.class.php	(revision 12010)
+++ skeleton/xml/IXSLProcessor.class.php	(working copy)
@@ -53,6 +53,13 @@
      * @param   string xsl the XSL as a string
      */
     public function setXSLBuf($xsl);
+
+    /**
+     * Set XSL from a tree
+     *
+     * @param   xml.Tree xsl
+     */
+    public function setXSLTree(Tree $xsl);
     
     /**
      * Set XML file
@@ -69,6 +76,13 @@
     public function setXMLBuf($xml);
 
     /**
+     * Set XML from a tree
+     *
+     * @param   xml.Tree xml
+     */
+    public function setXMLTree(Tree $xml);
+
+    /**
      * Set XSL transformation parameters
      *
      * @param   array params associative array { param_name => param_value }
Index: ports/classes/net/xp_framework/unittest/xml/AbstractProcessorTest.class.php
===================================================================
--- ports/classes/net/xp_framework/unittest/xml/AbstractProcessorTest.class.php	(revision 12019)
+++ ports/classes/net/xp_framework/unittest/xml/AbstractProcessorTest.class.php	(working copy)
@@ -118,6 +118,24 @@
     }
 
     /**
+     * Tests setXMLTree() method
+     *
+     */
+    #[@test]
+    public function setXMLTree() {
+      $this->processor->setXMLTree(new Tree('document'));
+    }
+
+    /**
+     * Tests setXMLTree() method
+     *
+     */
+    #[@test, @expect('xml.TransformerException')]
+    public function setMalformedXMLTree() {
+      $this->processor->setXMLTree(new Tree('<!>'));    // xml.Tree does not check this!
+    }
+
+    /**
      * Tests setXMLBuf() method
      *
      */
@@ -172,6 +190,26 @@
     }
 
     /**
+     * Tests setXSLTree() method
+     *
+     */
+    #[@test]
+    public function setXSLTree() {
+      $t= new Tree('xsl:stylesheet');
+      $t->root->setAttribute('xmlns:xsl', 'http://www.w3.org/1999/XSL/Transform');
+      $this->processor->setXSLTree($t);
+    }
+
+    /**
+     * Tests setXSLTree() method
+     *
+     */
+    #[@test, @expect('xml.TransformerException')]
+    public function setMalformedXSLTree() {
+      $this->processor->setXSLTree(new Tree('<!>'));    // xml.Tree does not check this!
+    }
+
+    /**
      * Tests the setParam() and getParam() methods
      *
      */
Index: skeleton/scriptlet/xml/XMLScriptletResponse.class.php
===================================================================
--- skeleton/scriptlet/xml/XMLScriptletResponse.class.php	(revision 12010)
+++ skeleton/scriptlet/xml/XMLScriptletResponse.class.php	(working copy)
@@ -12,6 +12,7 @@
   
   define('XSLT_BUFFER', 0x0000);
   define('XSLT_FILE',   0x0001);
+  define('XSLT_TREE',   0x0002);
   
   /**
    * Wraps XML response
@@ -276,31 +277,32 @@
           try {
             $this->processor->setXSLFile($this->_stylesheet[1]);
           } catch (FileNotFoundException $e) {
-            throw(new HttpScriptletException($e->getMessage(), HTTP_NOT_FOUND));
+            throw new HttpScriptletException($e->getMessage(), HTTP_NOT_FOUND);
           }
           break;
           
         case XSLT_BUFFER:
           $this->processor->setXSLBuf($this->_stylesheet[1]);
           break;
+
+        case XSLT_TREE:
+          $this->processor->setXSLTree($this->_stylesheet[1]);
+          break;
         
         default:
-          throw(new IllegalStateException(
+          throw new IllegalStateException(
             'Unknown type ('.$this->_stylesheet[0].') for stylesheet'
-          ));
+          );
       }
       
       $this->processor->setParams($this->params);
-      $this->processor->setXMLBuf(
-        $this->document->getDeclaration()."\n".
-        $this->document->getSource(FALSE)
-      );
+      $this->processor->setXMLTree($this->document);
       
       // Transform XML/XSL
       try {
         $this->processor->run();
       } catch (TransformerException $e) {
-        throw(new HttpScriptletException($e->getMessage(), HTTP_INTERNAL_SERVER_ERROR));
+        throw new HttpScriptletException($e->getMessage(), HTTP_INTERNAL_SERVER_ERROR);
       }
       
       $this->content= $this->processor->output();