Function to_basic_string

include/jsoncons_ext/jsonpath/path_node.hpp:269–307

    template <typename CharT,typename Allocator=std::allocator<CharT>>
    std::basic_string<CharT,std::char_traits<CharT>,Allocator> to_basic_string(const basic_path_node<CharT>& path, const Allocator& alloc=Allocator())
    {
        std::basic_string<CharT,std::char_traits<CharT>,Allocator> buffer(alloc);

        using path_node_type = basic_path_node<CharT>;

        std::vector<const path_node_type*> nodes(path.size(), nullptr);
        std::size_t len = nodes.size();
        const path_node_type* p = std::addressof(path);
        while (p != nullptr)
        {
            nodes[--len] = p;
            p = p->parent();
        }

        for (auto node : nodes)
        {
            switch (node->node_kind())
            {
                case path_node_kind::root:
                    buffer.push_back('$');
                    break;
                case path_node_kind::name:
                    buffer.push_back('[');
                    buffer.push_back('\'');
                    jsoncons::jsonpath::escape_string(node->name().data(), node->name().size(), buffer);
                    buffer.push_back('\'');
                    buffer.push_back(']');
                    break;
                case path_node_kind::index:
                    buffer.push_back('[');
                    jsoncons::from_integer(node->index(), buffer);
                    buffer.push_back(']');
                    break;
            }
        }

        return buffer;
    }

    using path_node = basic_path_node<char>;
    using wpath_node = basic_path_node<wchar_t>;