X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2FDEVEL%2Fmathml_editor%2Fsrc%2FCMathMLFactoryXSLT.cc;h=07eb4b3540e19ff1d9ffca835b273aabc46746a3;hb=e7e2a523299d807370b292b44e77f46fad1638c9;hp=711ed2aeed7291869166ab76d3f2debecc22a182;hpb=305502d014e6ac7bde45e48de615bd9c77b0e573;p=helm.git

diff --git a/helm/DEVEL/mathml_editor/src/CMathMLFactoryXSLT.cc b/helm/DEVEL/mathml_editor/src/CMathMLFactoryXSLT.cc
index 711ed2aee..07eb4b354 100644
--- a/helm/DEVEL/mathml_editor/src/CMathMLFactoryXSLT.cc
+++ b/helm/DEVEL/mathml_editor/src/CMathMLFactoryXSLT.cc
@@ -1,9 +1,35 @@
+/* This file is part of EdiTeX, an editor of mathematical
+ * expressions based on TeX syntax.
+ * 
+ * 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.
+ *
+ * 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
+ * Lesser General Public License for more details.
+ *
+ * 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)
@@ -16,7 +42,6 @@ CMathMLFactoryXSLT::CMathMLFactoryXSLT(ALogger& l, const DOMX::XSLTStylesheet& s
 void
 CMathMLFactoryXSLT::documentModified(TDocument& doc)
 {
-  cout << "passo di qui" << endl;
   std::vector< std::pair<DOM::GdomeString, DOM::GdomeString> > dirtyId;
   if (TNode dirty = doc.dirtyNode())
     if (result.get_documentElement().hasAttribute("xref"))
@@ -24,22 +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