Formatter.h

/*
 *  Formatter class interface
 *
 *  This file is part of OTAWA
 *  Copyright (c) 2007-09, IRIT UPS.
 *
 *  OTAWA 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.
 *
 *  OTAWA 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.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with OTAWA; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
#ifndef ELM_STRING_FORMATTER_H
#define ELM_STRING_FORMATTER_H
 
#include <elm/io.h>
 
namespace elm {
 
// Formatter class
class Formatter {
    char esc;
protected:
    static const int DONE = 0;
    static const int CONTINUE = 1;
    static const int REJECT = 2;
    virtual int process(io::OutStream& out, char chr) = 0;
public:
    Formatter(char esc = '%');
    virtual ~Formatter(void) { }
    int format(io::InStream& in, io::OutStream& out = io::out);
    inline char escape(void) const { return esc; }
    inline void escape(char c) { esc = c; }
};
 
} // elm
 
#endif  // ELM_STRING_FORMATTER_H