X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2FDEVEL%2Fmathml_editor%2Fsrc%2FCMathMLFactoryXSLT.cc;h=07eb4b3540e19ff1d9ffca835b273aabc46746a3;hb=9f60b3b0f4460aec52ec241037f6c475b421dd15;hp=21f0450e9da1cbbabeb9dda2c2e701cb78547894;hpb=d195deff022235dcb39cc4d5865f5bd3c8d3ca07;p=helm.git

diff --git a/helm/DEVEL/mathml_editor/src/CMathMLFactoryXSLT.cc b/helm/DEVEL/mathml_editor/src/CMathMLFactoryXSLT.cc
index 21f0450e9..07eb4b354 100644
--- a/helm/DEVEL/mathml_editor/src/CMathMLFactoryXSLT.cc
+++ b/helm/DEVEL/mathml_editor/src/CMathMLFactoryXSLT.cc
@@ -1,33 +1,35 @@
-/* Copyright (C) 2002-2003, Luca Padovani <luca.padovani@cs.unibo.it>,
- *                    2003, Paolo Marinelli <pmarinel@cs.unibo.it>.
- *
- * This file is part of EdiTeX, an editor of mathematical
- * expressions based on TeX syntax
+/* This file is part of EdiTeX, an editor of mathematical
+ * expressions based on TeX syntax.
  * 
- * EdiTeX is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
+ * Copyright (C) 2002-2003 Luca Padovani <lpadovan@cs.unibo.it>,
+ *                    2003 Paolo Marinelli <pmarinel@cs.unibo.it>.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
  *
- * EdiTeX is distributed in the hope that it will be useful,
+ * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License
- * along with EdiTeX; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
- * 
- * For details, see the EdiTeX World-Wide-Web page,
- * http://helm.cs.unibo.it/editex, or send a mail to
- * <luca.padovani@cs.unibo.it>
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * For more information, please visit the project's home page
+ * http://helm.cs.unibo.it/editex/
+ * or send an email to <lpadovan@cs.unibo.it>
  */
 
 #include "dom.hh"
 #include "TNode.hh"
+#include "ALogger.hh"
 #include "TDocument.hh"
 #include "CMathMLFactoryXSLT.hh"
 #include "AMathMLConsumer.hh"
+#include <cassert>
 
 CMathMLFactoryXSLT::CMathMLFactoryXSLT(ALogger& l, const DOMX::XSLTStylesheet& s)
   : AMathMLFactory(l), style(s)
@@ -47,22 +49,33 @@ CMathMLFactoryXSLT::documentModified(TDocument& doc)
 				       DOM::GdomeString("'" + std::string(dirty["id"]) + "'")));
   DOM::Document res = style.apply(doc.document(), dirtyId);
   assert(res);
-  style.save(doc.document(), stdout);
+  //style.save(doc.document(), stdout);
 
-  DOM::Element root = res.get_documentElement();
-  assert(root);
-
-  if (result.get_documentElement().hasAttribute("xref"))
-    {
-      bool ok = subst(result.get_documentElement(), root.getAttribute("xref"), result.importNode(root, true));
-      assert(ok);
+  if (DOM::Element root = res.get_documentElement())
+	  {
+      if (result.get_documentElement().hasAttribute("xref"))
+        {
+          bool ok = subst(result.get_documentElement(), root.getAttribute("xref"), result.importNode(root, true));
+          assert(ok);
+          doc.clearDirty();
+        }
+      else
+        result.replaceChild(result.importNode(root, true), result.get_documentElement());
+	  }
+	else
+		{
+			// Something wrong happened while applying the stylesheet.
+			DOM::Element root = result.get_documentElement();
+			DOM::Node p = root.get_firstChild();
+			while (p) {
+				DOM::Node next = p.get_nextSibling();
+				root.removeChild(p);
+				p = next;
+			}
+      logger.error("The stylesheet produced an empty document");
     }
-  else
-    result.replaceChild(result.importNode(root, true), result.get_documentElement());
-
-  style.save(result, stdout);
 
-  doc.clearDirty();
+  //style.save(result, stdout);
 }
 
 bool