pointer.hpp

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#ifndef _json_pointer_hpp_
#define _json_pointer_hpp_

/*
 * Copyright (c) 2017 Andrew Haisley
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */


#include <list>
#include <string>

#include "common.hpp"

namespace NAMESPACE
{
    class pointer
    {
    public:

        class token
        {
        public:

            typedef enum { all_e, object_e, array_e } type_t;

            token();

            token(const std::string &name);

            token(size_t index);

            type_t get_type() const;

            const std::string &get_name() const;

            size_t get_index() const;

        private:

            type_t m_type;

            std::string m_name;

            size_t m_index;
        };

        pointer(const std::string &pointer);

        const std::list<token> &get_path() const;

    private:

        std::list<token> m_path;

        void build_from_uri_fragment(const std::string &pointer);
        void build_from_json_string(const std::string &pointer);
        bool next_token(const std::string &pointer, size_t &start, size_t &end);
        token translate_uri_token(const std::string &pointer, size_t &start, size_t &end);
        token translate_jsonp_token(const std::string &pointer, size_t &start, size_t &end);
        token make_token(const std::string &s);
        int from_hex(const std::string &s, size_t index);
    };

    std::ostream &operator<<(std::ostream &stream, const pointer &p);
}

#endif