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[helm.git] / helm / DEVEL / mathml_editor / src / Diff.hh

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-/* 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>
- */
-
-#ifndef __Diff_hh__
-#define __Diff_hh__
-
-#include <GdomeSmartDOM.hh>
-
-#define XMLNS_NS_URI "http://www.w3.org/2000/xmlns/"
-#define DDIFF_NS_URI "http://helm.cs.unibo.it/2002/DDIFF"
-
-namespace GdomeSmartDOMExt
-{
- 
-  using namespace GdomeSmartDOM;
-
-  class Diff
-  {
-  public:
-    typedef bool (*flatNodeEq)(const Node&, const Node&);
-    static bool defaultFlatNodeEq(const Node&, const Node&);
-
-  private:
-    Diff(const Node& n, const Document& d, flatNodeEq e) : dest(n), doc(d), eq(e) { };
-
-  public:
-    static Diff diff(const Document&, const Document&, flatNodeEq = defaultFlatNodeEq);
-    static Diff diff(const Element&, const Element&, flatNodeEq = defaultFlatNodeEq);
-
-    Document document(void) const { return doc; };
-    Node     node(void) const { return dest; };
-
-    void patch(void) const;
-
-    struct BADDiff
-    {
-      BADDiff(const std::string& s) : msg(s) { };
-      const std::string msg;
-    };
-
-  private:
-    Node diffNodes(const Node&, const Node&) const;
-    bool diffChildren(const Node&, const Node&, const Node&) const;
-    void sameChunk(const Node&, unsigned long) const;
-    void patchRootNode(const Node&, const Element&) const;
-    void patchChildren(const Node&, const Element&) const;
-
-    Document   doc;
-    Node       dest;
-    flatNodeEq eq;
-  };
-
-}
-
-#endif // __ddiff_hh__