ini.h

/*
 *  ini::Loader class interface
 *
 *  This file is part of OTAWA
 *  Copyright (c) 2013, 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_INI_H_
#define ELM_INI_H_

#include <elm/string.h>
#include <elm/genstruct/AssocList.h>
#include <elm/genstruct/Vector.h>
#include <elm/sys/Path.h>

namespace elm { namespace ini {

class Exception: public MessageException {
public:
    inline Exception(const string& msg): MessageException(msg) { }
};

class Section {
    friend class File;
    typedef genstruct::AssocList<string, string> map_t;
    inline Section(const string& name): _name(name) { }

public:
    inline const string& name(void) const { return _name; }
    inline string get(const string& key) const { return values.get(key, ""); }
    inline string operator[](const string& key) const { return get(key); }
    inline bool isDefined(const string& key) const { return values.hasKey(key); }
    string get(const string& key, const string& def) const;
    int getInt(const string& key, int def);
    void getList(const string& key, genstruct::Vector<string>& list);

    class Iterator: public map_t::PairIterator {
    public:
        inline Iterator(Section *s): map_t::PairIterator(s->values) { }
        inline Iterator(const Iterator& i): map_t::PairIterator(i) { }
        inline Iterator& operator=(const Iterator& i) { map_t::PairIterator::operator=(i); return *this; }
        inline const string& key(void) const { return item().fst; }
        inline const string& value(void) const { return item().snd; }
    };

private:
    string _name;
    map_t values;
};

class File {
    File(void);
    typedef genstruct::AssocList<string, Section *> map_t;

public:
    static File *load(const sys::Path& path) throw(Exception);
    static File *load(io::InStream *in) throw (Exception);
    ~File(void);
    inline Section *defaultSection(void) const { return def; }
    inline Section *get(const string& name) const { return sects.get(name, 0); }
    inline Section *operator[](const string& name) const { return get(name); }

    class Iterator: public map_t::Iterator {
    public:
        inline Iterator(File *file): map_t::Iterator(file->sects) { }
        inline Iterator(const Iterator& i): map_t::Iterator(i) { }
        inline Iterator operator=(const Iterator& i) { map_t::Iterator::operator=(i); return *this; }
    };

private:
    Section *def;
    map_t sects;
};

} } // elm::ini

#endif /* ELM_INI_H_ */