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+// ----------------------------------------------------------------------------
+// Copyright (C) 2015 Sebastian Redl
+//
+// Distributed under the Boost Software License, Version 1.0. 
+// (See accompanying file LICENSE_1_0.txt or copy at 
+// http://www.boost.org/LICENSE_1_0.txt)
+//
+// For more information, see www.boost.org
+// ----------------------------------------------------------------------------
+#ifndef BOOST_PROPERTY_TREE_DETAIL_JSON_PARSER_READ_HPP
+#define BOOST_PROPERTY_TREE_DETAIL_JSON_PARSER_READ_HPP
+
+#include <boost/property_tree/json_parser/detail/parser.hpp>
+#include <boost/property_tree/json_parser/detail/narrow_encoding.hpp>
+#include <boost/property_tree/json_parser/detail/wide_encoding.hpp>
+#include <boost/property_tree/json_parser/detail/standard_callbacks.hpp>
+
+#include <boost/static_assert.hpp>
+#include <boost/type_traits/is_same.hpp>
+
+#include <istream>
+#include <iterator>
+#include <string>
+
+namespace boost { namespace property_tree {
+    namespace json_parser { namespace detail
+{
+
+    template <typename Iterator, typename Sentinel>
+    class minirange
+    {
+    public:
+        minirange(Iterator first, Sentinel last) : first(first), last(last) {}
+        Iterator begin() const { return first; }
+        Sentinel end() const { return last; }
+
+    private:
+        Iterator first;
+        Sentinel last;
+    };
+    template <typename Iterator, typename Sentinel>
+    minirange<Iterator, Sentinel> make_minirange(Iterator first, Sentinel last)
+    {
+        return minirange<Iterator, Sentinel>(first, last);
+    }
+
+    template <typename Iterator, typename Sentinel,
+              typename Encoding, typename Callbacks>
+    void read_json_internal(Iterator first, Sentinel last, Encoding& encoding,
+        Callbacks& callbacks, const std::string& filename)
+    {
+        BOOST_STATIC_ASSERT_MSG((boost::is_same<
+            typename std::iterator_traits<Iterator>::value_type,
+            typename Encoding::external_char>::value),
+            "Encoding is not capable of using the iterator's value type.");
+        BOOST_STATIC_ASSERT_MSG((boost::is_same<
+            typename Callbacks::char_type,
+            typename Encoding::internal_char>::value),
+            "Encoding is not capable of producing the needed character type.");
+
+        detail::parser<Callbacks, Encoding, Iterator, Sentinel>
+            parser(callbacks, encoding);
+        parser.set_input(filename, make_minirange(first, last));
+        parser.parse_value();
+        parser.finish();
+    }
+
+    template <typename Ch> struct encoding;
+    template <> struct encoding<char> : utf8_utf8_encoding {};
+    template <> struct encoding<wchar_t> : wide_wide_encoding {};
+
+    template <typename Ptree>
+    void read_json_internal(
+        std::basic_istream<typename Ptree::key_type::value_type> &stream,
+        Ptree &pt, const std::string &filename)
+    {
+        typedef typename Ptree::key_type::value_type char_type;
+        typedef standard_callbacks<Ptree> callbacks_type;
+        typedef detail::encoding<char_type> encoding_type;
+        typedef std::istreambuf_iterator<char_type> iterator;
+        callbacks_type callbacks;
+        encoding_type encoding;
+        read_json_internal(iterator(stream), iterator(),
+            encoding, callbacks, filename);
+        pt.swap(callbacks.output());
+    }
+
+}}}}
+
+#endif