xmlvisitor.h

/*
  MusicXML Library
  Copyright (C) Grame 2006-2013
 
  This Source Code Form is subject to the terms of the Mozilla Public
  License, v. 2.0. If a copy of the MPL was not distributed with this
  file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
  Grame Research Laboratory, 11, cours de Verdun Gensoul 69002 Lyon - France
  research@grame.fr
*/
 
#ifndef __xmlvisitors__
#define __xmlvisitors__
 
#include <ostream>
 
#include "tree_browser.h"
#include "typedefs.h"
#include "visitor.h"
#include "xml.h"
 
namespace MusicXML2 
{
 
//______________________________________________________________________________
class xmlendl {
    private:
        int fIndent;
    public:
                 xmlendl() : fIndent(0) {}
        virtual ~xmlendl() {}
 
        xmlendl& operator++ (int)  { fIndent++; return *this; }
        xmlendl& operator-- (int)  { fIndent--; return *this; }
        void print(std::ostream& os) const;
};
std::ostream& operator<< (std::ostream& os, const xmlendl& eol);
 
//______________________________________________________________________________
class xmlvisitor : 
    public visitor<S_comment>,
    public visitor<S_processing_instruction>,
    public visitor<Sxmlelement>
{
    std::ostream&   fOut;
    xmlendl         fendl;
 
    public:
                 xmlvisitor(std::ostream& stream) : fOut(stream) {}
        virtual ~xmlvisitor() {}
 
        virtual void visitStart ( Sxmlelement& elt);
        virtual void visitEnd   ( Sxmlelement& elt);
        virtual void visitStart ( S_comment& elt);
        virtual void visitStart ( S_processing_instruction& elt);
};
 
} // namespace MusicXML2
 
 
#endif