libaegis/sub/diversion/stack.h

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//
//      aegis - project change supervisor
//      Copyright (C) 2004-2008 Peter Miller
//
//      This program 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 3 of the License, or
//      (at your option) any later version.
//
//      This program 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 this program. If not, see
//      <http://www.gnu.org/licenses/>.
//

#ifndef LIBAEGIS_SUB_DIVERSION_STACK_H
#define LIBAEGIS_SUB_DIVERSION_STACK_H

#include <common/ac/stddef.h>
#include <libaegis/sub/diversion.h>

class sub_diversion_stack
{
public:
    virtual ~sub_diversion_stack();

    sub_diversion_stack();

    void push_back(const wstring &s, bool resub);

    void pop_back();

    bool resub_both() const;

    wchar_t getch();

    void ungetch(wchar_t c);

    bool empty() const { return (top == 0); }

private:
    size_t top;

    size_t max;

    sub_diversion *stack;

    sub_diversion_stack(const sub_diversion_stack &);

    sub_diversion_stack &operator=(const sub_diversion_stack &);
};

#endif // LIBAEGIS_SUB_DIVERSION_STACK_H