Added boost header

test/external/boost/property_tree/detail/exception_implementation.hpp

@@ -0,0 +1,83 @@
+// ----------------------------------------------------------------------------
+// Copyright (C) 2002-2006 Marcin Kalicinski
+// Copyright (C) 2009 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_EXCEPTIONS_IMPLEMENTATION_HPP_INCLUDED
+#define BOOST_PROPERTY_TREE_DETAIL_EXCEPTIONS_IMPLEMENTATION_HPP_INCLUDED
+
+namespace boost { namespace property_tree
+{
+
+    namespace detail
+    {
+
+        // Helper for preparing what string in ptree_bad_path exception
+        template<class P> inline
+        std::string prepare_bad_path_what(const std::string &what,
+                                          const P &path)
+        {
+            return what + " (" + path.dump() + ")";
+        }
+
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // ptree_error
+
+    inline ptree_error::ptree_error(const std::string &w): 
+        std::runtime_error(w) 
+    {
+    }
+
+    inline ptree_error::~ptree_error() throw()
+    {
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // ptree_bad_data
+
+    template<class D> inline
+    ptree_bad_data::ptree_bad_data(const std::string &w, const D &d):
+        ptree_error(w), m_data(d)
+    {
+    }
+
+    inline ptree_bad_data::~ptree_bad_data() throw()
+    {
+    }
+
+    template<class D> inline
+    D ptree_bad_data::data()
+    {
+        return boost::any_cast<D>(m_data);
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // ptree_bad_path
+
+    template<class P> inline
+    ptree_bad_path::ptree_bad_path(const std::string &w, const P &p):
+        ptree_error(detail::prepare_bad_path_what(w, p)), m_path(p)
+    {
+
+    }
+
+    inline ptree_bad_path::~ptree_bad_path() throw()
+    {
+    }
+
+    template<class P> inline
+    P ptree_bad_path::path()
+    {
+        return boost::any_cast<P>(m_path);
+    }
+
+}}
+
+#endif

test/external/boost/property_tree/detail/file_parser_error.hpp

@@ -0,0 +1,88 @@
+// ----------------------------------------------------------------------------
+// Copyright (C) 2002-2006 Marcin Kalicinski
+//
+// 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_FILE_PARSER_ERROR_HPP_INCLUDED
+#define BOOST_PROPERTY_TREE_DETAIL_FILE_PARSER_ERROR_HPP_INCLUDED
+
+#include <boost/property_tree/ptree.hpp>
+#include <string>
+
+namespace boost { namespace property_tree
+{
+
+    //! File parse error
+    class file_parser_error: public ptree_error
+    {
+
+    public:
+
+        ///////////////////////////////////////////////////////////////////////
+        // Construction & destruction
+
+        // Construct error
+        file_parser_error(const std::string &msg,
+                          const std::string &file,
+                          unsigned long l) :
+            ptree_error(format_what(msg, file, l)),
+            m_message(msg), m_filename(file), m_line(l)
+        {
+        }
+
+        ~file_parser_error() throw()
+            // gcc 3.4.2 complains about lack of throw specifier on compiler
+            // generated dtor
+        {
+        }
+
+        ///////////////////////////////////////////////////////////////////////
+        // Data access
+
+        // Get error message (without line and file - use what() to get
+        // full message)
+        std::string message() const
+        {
+            return m_message;
+        }
+
+        // Get error filename
+        std::string filename() const
+        {
+            return m_filename;
+        }
+
+        // Get error line number
+        unsigned long line() const
+        {
+            return m_line;
+        }
+
+    private:
+
+        std::string m_message;
+        std::string m_filename;
+        unsigned long m_line;
+
+        // Format error message to be returned by std::runtime_error::what()
+        static std::string format_what(const std::string &msg,
+                                       const std::string &file,
+                                       unsigned long l)
+        {
+            std::stringstream stream;
+            stream << (file.empty() ? "<unspecified file>" : file.c_str());
+            if (l > 0)
+                stream << '(' << l << ')';
+            stream << ": " << msg;
+            return stream.str();
+        }
+
+    };
+
+} }
+
+#endif

test/external/boost/property_tree/detail/info_parser_error.hpp

@@ -0,0 +1,32 @@
+// ----------------------------------------------------------------------------
+// Copyright (C) 2002-2006 Marcin Kalicinski
+//
+// 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_INFO_PARSER_ERROR_HPP_INCLUDED
+#define BOOST_PROPERTY_TREE_DETAIL_INFO_PARSER_ERROR_HPP_INCLUDED
+
+#include <boost/property_tree/detail/file_parser_error.hpp>
+#include <string>
+
+namespace boost { namespace property_tree { namespace info_parser
+{
+
+    class info_parser_error: public file_parser_error
+    {
+    public:
+        info_parser_error(const std::string &message,
+                          const std::string &filename,
+                          unsigned long line) :
+            file_parser_error(message, filename, line)
+        {
+        }
+    };
+
+} } }
+
+#endif

test/external/boost/property_tree/detail/info_parser_read.hpp

@@ -0,0 +1,380 @@
+// ----------------------------------------------------------------------------
+// Copyright (C) 2002-2006 Marcin Kalicinski
+//
+// 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_INFO_PARSER_READ_HPP_INCLUDED
+#define BOOST_PROPERTY_TREE_DETAIL_INFO_PARSER_READ_HPP_INCLUDED
+
+#include "boost/property_tree/ptree.hpp"
+#include "boost/property_tree/detail/info_parser_error.hpp"
+#include "boost/property_tree/detail/info_parser_utils.hpp"
+#include <iterator>
+#include <string>
+#include <stack>
+#include <fstream>
+#include <cctype>
+
+namespace boost { namespace property_tree { namespace info_parser
+{
+
+    // Expand known escape sequences
+    template<class It>
+    std::basic_string<typename std::iterator_traits<It>::value_type>
+        expand_escapes(It b, It e)
+    {
+        typedef typename std::iterator_traits<It>::value_type Ch;
+        std::basic_string<Ch> result;
+        while (b != e)
+        {
+            if (*b == Ch('\\'))
+            {
+                ++b;
+                if (b == e)
+                {
+                    BOOST_PROPERTY_TREE_THROW(info_parser_error(
+                        "character expected after backslash", "", 0));
+                }
+                else if (*b == Ch('0')) result += Ch('\0');
+                else if (*b == Ch('a')) result += Ch('\a');
+                else if (*b == Ch('b')) result += Ch('\b');
+                else if (*b == Ch('f')) result += Ch('\f');
+                else if (*b == Ch('n')) result += Ch('\n');
+                else if (*b == Ch('r')) result += Ch('\r');
+                else if (*b == Ch('t')) result += Ch('\t');
+                else if (*b == Ch('v')) result += Ch('\v');
+                else if (*b == Ch('"')) result += Ch('"');
+                else if (*b == Ch('\'')) result += Ch('\'');
+                else if (*b == Ch('\\')) result += Ch('\\');
+                else
+                    BOOST_PROPERTY_TREE_THROW(info_parser_error(
+                        "unknown escape sequence", "", 0));
+            }
+            else
+                result += *b;
+            ++b;
+        }
+        return result;
+    }
+
+    // Advance pointer past whitespace
+    template<class Ch>
+    void skip_whitespace(const Ch *&text)
+    {
+        using namespace std;
+        while (isspace(*text))
+            ++text;
+    }
+
+    // Extract word (whitespace delimited) and advance pointer accordingly
+    template<class Ch>
+    std::basic_string<Ch> read_word(const Ch *&text)
+    {
+        using namespace std;
+        skip_whitespace(text);
+        const Ch *start = text;
+        while (!isspace(*text) && *text != Ch(';') && *text != Ch('\0'))
+            ++text;
+        return expand_escapes(start, text);
+    }
+
+    // Extract line (eol delimited) and advance pointer accordingly
+    template<class Ch>
+    std::basic_string<Ch> read_line(const Ch *&text)
+    {
+        using namespace std;
+        skip_whitespace(text);
+        const Ch *start = text;
+        while (*text != Ch('\0') && *text != Ch(';'))
+            ++text;
+        while (text > start && isspace(*(text - 1)))
+            --text;
+        return expand_escapes(start, text);
+    }
+
+    // Extract string (inside ""), and advance pointer accordingly
+    // Set need_more_lines to true if \ continuator found
+    template<class Ch>
+    std::basic_string<Ch> read_string(const Ch *&text, bool *need_more_lines)
+    {
+        skip_whitespace(text);
+        if (*text == Ch('\"'))
+        {
+
+            // Skip "
+            ++text;
+
+            // Find end of string, but skip escaped "
+            bool escaped = false;
+            const Ch *start = text;
+            while ((escaped || *text != Ch('\"')) && *text != Ch('\0'))
+            {
+                escaped = (!escaped && *text == Ch('\\'));
+                ++text;
+            }
+
+            // If end of string found
+            if (*text == Ch('\"'))
+            {
+                std::basic_string<Ch> result = expand_escapes(start, text++);
+                skip_whitespace(text);
+                if (*text == Ch('\\'))
+                {
+                    if (!need_more_lines)
+                        BOOST_PROPERTY_TREE_THROW(info_parser_error(
+                            "unexpected \\", "", 0));
+                    ++text;
+                    skip_whitespace(text);
+                    if (*text == Ch('\0') || *text == Ch(';'))
+                        *need_more_lines = true;
+                    else
+                        BOOST_PROPERTY_TREE_THROW(info_parser_error(
+                            "expected end of line after \\", "", 0));
+                }
+                else
+                    if (need_more_lines)
+                        *need_more_lines = false;
+                return result;
+            }
+            else
+                BOOST_PROPERTY_TREE_THROW(info_parser_error(
+                    "unexpected end of line", "", 0));
+
+        }
+        else
+            BOOST_PROPERTY_TREE_THROW(info_parser_error("expected \"", "", 0));
+    }
+
+    // Extract key
+    template<class Ch>
+    std::basic_string<Ch> read_key(const Ch *&text)
+    {
+        skip_whitespace(text);
+        if (*text == Ch('\"'))
+            return read_string(text, NULL);
+        else
+            return read_word(text);
+    }
+
+    // Extract data
+    template<class Ch>
+    std::basic_string<Ch> read_data(const Ch *&text, bool *need_more_lines)
+    {
+        skip_whitespace(text);
+        if (*text == Ch('\"'))
+            return read_string(text, need_more_lines);
+        else
+        {
+            *need_more_lines = false;
+            return read_word(text);
+        }
+    }
+
+    // Build ptree from info stream
+    template<class Ptree, class Ch>
+    void read_info_internal(std::basic_istream<Ch> &stream,
+                            Ptree &pt,
+                            const std::string &filename,
+                            int include_depth)
+    {
+        typedef std::basic_string<Ch> str_t;
+        // Possible parser states
+        enum state_t {
+            s_key,              // Parser expects key
+            s_data,             // Parser expects data
+            s_data_cont         // Parser expects data continuation
+        };
+
+        unsigned long line_no = 0;
+        state_t state = s_key;          // Parser state
+        Ptree *last = NULL;             // Pointer to last created ptree
+        // Define line here to minimize reallocations
+        str_t line;
+
+        // Initialize ptree stack (used to handle nesting)
+        std::stack<Ptree *> stack;
+        stack.push(&pt);                // Push root ptree on stack initially
+
+        try {
+            // While there are characters in the stream
+            while (stream.good()) {
+                // Read one line from stream
+                ++line_no;
+                std::getline(stream, line);
+                if (!stream.good() && !stream.eof())
+                    BOOST_PROPERTY_TREE_THROW(info_parser_error(
+                        "read error", filename, line_no));
+                const Ch *text = line.c_str();
+
+                // If directive found
+                skip_whitespace(text);
+                if (*text == Ch('#')) {
+                    // Determine directive type
+                    ++text;     // skip #
+                    std::basic_string<Ch> directive = read_word(text);
+                    if (directive == convert_chtype<Ch, char>("include")) {
+                        // #include
+                        if (include_depth > 100) {
+                            BOOST_PROPERTY_TREE_THROW(info_parser_error(
+                                "include depth too large, "
+                                "probably recursive include",
+                                filename, line_no));
+                        }
+                        str_t s = read_string(text, NULL);
+                        std::string inc_name =
+                            convert_chtype<char, Ch>(s.c_str());
+                        std::basic_ifstream<Ch> inc_stream(inc_name.c_str());
+                        if (!inc_stream.good())
+                            BOOST_PROPERTY_TREE_THROW(info_parser_error(
+                                "cannot open include file " + inc_name,
+                                filename, line_no));
+                        read_info_internal(inc_stream, *stack.top(),
+                                           inc_name, include_depth + 1);
+                    } else {   // Unknown directive
+                        BOOST_PROPERTY_TREE_THROW(info_parser_error(
+                            "unknown directive", filename, line_no));
+                    }
+
+                    // Directive must be followed by end of line
+                    skip_whitespace(text);
+                    if (*text != Ch('\0')) {
+                        BOOST_PROPERTY_TREE_THROW(info_parser_error(
+                            "expected end of line", filename, line_no));
+                    }
+
+                    // Go to next line
+                    continue;
+                }
+
+                // While there are characters left in line
+                while (1) {
+
+                    // Stop parsing on end of line or comment
+                    skip_whitespace(text);
+                    if (*text == Ch('\0') || *text == Ch(';')) {
+                        if (state == s_data)    // If there was no data set state to s_key
+                            state = s_key;
+                        break;
+                    }
+
+                    // Process according to current parser state
+                    switch (state)
+                    {
+
+                        // Parser expects key
+                        case s_key:
+                        {
+
+                            if (*text == Ch('{'))   // Brace opening found
+                            {
+                                if (!last)
+                                    BOOST_PROPERTY_TREE_THROW(info_parser_error("unexpected {", "", 0));
+                                stack.push(last);
+                                last = NULL;
+                                ++text;
+                            }
+                            else if (*text == Ch('}'))  // Brace closing found
+                            {
+                                if (stack.size() <= 1)
+                                    BOOST_PROPERTY_TREE_THROW(info_parser_error("unmatched }", "", 0));
+                                stack.pop();
+                                last = NULL;
+                                ++text;
+                            }
+                            else    // Key text found
+                            {
+                                std::basic_string<Ch> key = read_key(text);
+                                last = &stack.top()->push_back(
+                                    std::make_pair(key, Ptree()))->second;
+                                state = s_data;
+                            }
+
+                        }; break;
+
+                        // Parser expects data
+                        case s_data:
+                        {
+                            
+                            // Last ptree must be defined because we are going to add data to it
+                            BOOST_ASSERT(last);
+                            
+                            if (*text == Ch('{'))   // Brace opening found
+                            {
+                                stack.push(last);
+                                last = NULL;
+                                ++text;
+                                state = s_key;
+                            }
+                            else if (*text == Ch('}'))  // Brace closing found
+                            {
+                                if (stack.size() <= 1)
+                                    BOOST_PROPERTY_TREE_THROW(info_parser_error("unmatched }", "", 0));
+                                stack.pop();
+                                last = NULL;
+                                ++text;
+                                state = s_key;
+                            }
+                            else    // Data text found
+                            {
+                                bool need_more_lines;
+                                std::basic_string<Ch> data = read_data(text, &need_more_lines);
+                                last->data() = data;
+                                state = need_more_lines ? s_data_cont : s_key;
+                            }
+
+
+                        }; break;
+
+                        // Parser expects continuation of data after \ on previous line
+                        case s_data_cont:
+                        {
+                            
+                            // Last ptree must be defined because we are going to update its data
+                            BOOST_ASSERT(last);
+                            
+                            if (*text == Ch('\"'))  // Continuation must start with "
+                            {
+                                bool need_more_lines;
+                                std::basic_string<Ch> data = read_string(text, &need_more_lines);
+                                last->put_value(last->template get_value<std::basic_string<Ch> >() + data);
+                                state = need_more_lines ? s_data_cont : s_key;
+                            }
+                            else
+                                BOOST_PROPERTY_TREE_THROW(info_parser_error("expected \" after \\ in previous line", "", 0));
+
+                        }; break;
+
+                        // Should never happen
+                        default:
+                            BOOST_ASSERT(0);
+
+                    }
+                }
+            }
+
+            // Check if stack has initial size, otherwise some {'s have not been closed
+            if (stack.size() != 1)
+                BOOST_PROPERTY_TREE_THROW(info_parser_error("unmatched {", "", 0));
+
+        }
+        catch (info_parser_error &e)
+        {
+            // If line undefined rethrow error with correct filename and line
+            if (e.line() == 0)
+            {
+                BOOST_PROPERTY_TREE_THROW(info_parser_error(e.message(), filename, line_no));
+            }
+            else
+                BOOST_PROPERTY_TREE_THROW(e);
+
+        }
+
+    }
+
+} } }
+
+#endif

test/external/boost/property_tree/detail/info_parser_utils.hpp

@@ -0,0 +1,32 @@
+// ----------------------------------------------------------------------------
+// Copyright (C) 2002-2006 Marcin Kalicinski
+//
+// 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_INFO_PARSER_CHCONV_HPP_INCLUDED
+#define BOOST_PROPERTY_TREE_DETAIL_INFO_PARSER_CHCONV_HPP_INCLUDED
+
+#include <string>
+
+namespace boost { namespace property_tree { namespace info_parser
+{
+
+    template<class ChDest, class ChSrc>
+    std::basic_string<ChDest> convert_chtype(const ChSrc *text)
+    {
+        std::basic_string<ChDest> result;
+        while (*text)
+        {
+            result += ChDest(*text);
+            ++text;
+        }
+        return result;
+    }
+
+} } }
+
+#endif

test/external/boost/property_tree/detail/info_parser_write.hpp

@@ -0,0 +1,147 @@
+// ----------------------------------------------------------------------------
+// Copyright (C) 2002-2006 Marcin Kalicinski
+//
+// 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_INFO_PARSER_WRITE_HPP_INCLUDED
+#define BOOST_PROPERTY_TREE_DETAIL_INFO_PARSER_WRITE_HPP_INCLUDED
+
+#include "boost/property_tree/ptree.hpp"
+#include "boost/property_tree/detail/info_parser_utils.hpp"
+#include <string>
+
+namespace boost { namespace property_tree { namespace info_parser
+{
+    template<class Ch>
+    void write_info_indent(std::basic_ostream<Ch> &stream,
+          int indent,
+          const info_writer_settings<Ch> &settings
+          )
+    {
+        stream << std::basic_string<Ch>(indent * settings.indent_count, settings.indent_char);
+    }
+    
+    // Create necessary escape sequences from illegal characters
+    template<class Ch>
+    std::basic_string<Ch> create_escapes(const std::basic_string<Ch> &s)
+    {
+        std::basic_string<Ch> result;
+        typename std::basic_string<Ch>::const_iterator b = s.begin();
+        typename std::basic_string<Ch>::const_iterator e = s.end();
+        while (b != e)
+        {
+            if (*b == Ch('\0')) result += Ch('\\'), result += Ch('0');
+            else if (*b == Ch('\a')) result += Ch('\\'), result += Ch('a');
+            else if (*b == Ch('\b')) result += Ch('\\'), result += Ch('b');
+            else if (*b == Ch('\f')) result += Ch('\\'), result += Ch('f');
+            else if (*b == Ch('\n')) result += Ch('\\'), result += Ch('n');
+            else if (*b == Ch('\r')) result += Ch('\\'), result += Ch('r');
+            else if (*b == Ch('\v')) result += Ch('\\'), result += Ch('v');
+            else if (*b == Ch('"')) result += Ch('\\'), result += Ch('"');
+            else if (*b == Ch('\\')) result += Ch('\\'), result += Ch('\\');
+            else
+                result += *b;
+            ++b;
+        }
+        return result;
+    }
+
+    template<class Ch>
+    bool is_simple_key(const std::basic_string<Ch> &key)
+    {
+        const static std::basic_string<Ch> chars = convert_chtype<Ch, char>(" \t{};\n\"");
+        return !key.empty() && key.find_first_of(chars) == key.npos;
+    }
+    
+    template<class Ch>
+    bool is_simple_data(const std::basic_string<Ch> &data)
+    {
+        const static std::basic_string<Ch> chars = convert_chtype<Ch, char>(" \t{};\n\"");
+        return !data.empty() && data.find_first_of(chars) == data.npos;
+    }
+
+    template<class Ptree>
+    void write_info_helper(std::basic_ostream<typename Ptree::key_type::value_type> &stream, 
+                           const Ptree &pt, 
+                           int indent,
+                           const info_writer_settings<typename Ptree::key_type::value_type> &settings)
+    {
+
+        // Character type
+        typedef typename Ptree::key_type::value_type Ch;
+        
+        // Write data
+        if (indent >= 0)
+        {
+            if (!pt.data().empty())
+            {
+                std::basic_string<Ch> data = create_escapes(pt.template get_value<std::basic_string<Ch> >());
+                if (is_simple_data(data))
+                    stream << Ch(' ') << data << Ch('\n');
+                else
+                    stream << Ch(' ') << Ch('\"') << data << Ch('\"') << Ch('\n');
+            }
+            else if (pt.empty())
+                stream << Ch(' ') << Ch('\"') << Ch('\"') << Ch('\n');
+            else
+                stream << Ch('\n');
+        }
+        
+        // Write keys
+        if (!pt.empty())
+        {
+            
+            // Open brace
+            if (indent >= 0)
+            {
+                write_info_indent( stream, indent, settings);
+                stream << Ch('{') << Ch('\n');
+            }
+            
+            // Write keys
+            typename Ptree::const_iterator it = pt.begin();
+            for (; it != pt.end(); ++it)
+            {
+
+                // Output key
+                std::basic_string<Ch> key = create_escapes(it->first);
+                write_info_indent( stream, indent+1, settings);
+                if (is_simple_key(key))
+                    stream << key;
+                else
+                    stream << Ch('\"') << key << Ch('\"');
+
+                // Output data and children  
+                write_info_helper(stream, it->second, indent + 1, settings);
+
+            }
+            
+            // Close brace
+            if (indent >= 0)
+            {
+                write_info_indent( stream, indent, settings);
+                stream << Ch('}') << Ch('\n');
+            }
+
+        }
+    }
+
+    // Write ptree to info stream
+    template<class Ptree>
+    void write_info_internal(std::basic_ostream<typename Ptree::key_type::value_type> &stream, 
+                             const Ptree &pt,
+                             const std::string &filename,
+                             const info_writer_settings<typename Ptree::key_type::value_type> &settings)
+    {
+        write_info_helper(stream, pt, -1, settings);
+        if (!stream.good())
+            BOOST_PROPERTY_TREE_THROW(info_parser_error("write error", filename, 0));
+    }
+
+} } }
+
+#endif

test/external/boost/property_tree/detail/info_parser_writer_settings.hpp

@@ -0,0 +1,40 @@
+// ----------------------------------------------------------------------------
+// Copyright (C) 2002-2006 Marcin Kalicinski
+// Copyright (C) 2007 Alexey Baskakov
+//
+// 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_INFO_PARSER_WRITER_SETTINGS_HPP_INCLUDED
+#define BOOST_PROPERTY_TREE_DETAIL_INFO_PARSER_WRITER_SETTINGS_HPP_INCLUDED
+
+#include <string>
+
+namespace boost { namespace property_tree { namespace info_parser
+{
+
+    template <class Ch>
+    class info_writer_settings
+    {
+    public:
+        info_writer_settings(Ch indent_char = Ch(' '), unsigned indent_count = 4):
+            indent_char(indent_char),
+            indent_count(indent_count)
+        {
+        }
+        Ch indent_char;
+        int indent_count;
+    };
+
+    template <class Ch>
+    info_writer_settings<Ch> info_writer_make_settings(Ch indent_char = Ch(' '), unsigned indent_count = 4)
+    {
+        return info_writer_settings<Ch>(indent_char, indent_count);
+    }
+
+} } }
+
+#endif

test/external/boost/property_tree/detail/json_parser_error.hpp

@@ -0,0 +1,33 @@
+// ----------------------------------------------------------------------------
+// Copyright (C) 2002-2006 Marcin Kalicinski
+//
+// 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_ERROR_HPP_INCLUDED
+#define BOOST_PROPERTY_TREE_DETAIL_JSON_PARSER_ERROR_HPP_INCLUDED
+
+#include <boost/property_tree/detail/file_parser_error.hpp>
+#include <string>
+
+namespace boost { namespace property_tree { namespace json_parser
+{
+
+    //! Json parser error
+    class json_parser_error: public file_parser_error
+    {
+    public:
+        json_parser_error(const std::string &message, 
+                          const std::string &filename, 
+                          unsigned long line): 
+            file_parser_error(message, filename, line)
+        { 
+        }
+    };
+
+} } }
+
+#endif

test/external/boost/property_tree/detail/json_parser_read.hpp

@@ -0,0 +1,331 @@
+// ----------------------------------------------------------------------------
+// Copyright (C) 2002-2006 Marcin Kalicinski
+//
+// 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_INCLUDED
+#define BOOST_PROPERTY_TREE_DETAIL_JSON_PARSER_READ_HPP_INCLUDED
+
+//#define BOOST_SPIRIT_DEBUG
+
+#include <boost/property_tree/ptree.hpp>
+#include <boost/property_tree/detail/ptree_utils.hpp>
+#include <boost/property_tree/detail/json_parser_error.hpp>
+#include <boost/spirit/include/classic.hpp>
+#include <boost/limits.hpp>
+#include <string>
+#include <locale>
+#include <istream>
+#include <vector>
+#include <algorithm>
+
+namespace boost { namespace property_tree { namespace json_parser
+{
+
+    ///////////////////////////////////////////////////////////////////////
+    // Json parser context
+        
+    template<class Ptree>
+    struct context
+    {
+
+        typedef typename Ptree::key_type::value_type Ch;
+        typedef std::basic_string<Ch> Str;
+        typedef typename std::vector<Ch>::iterator It;
+        
+        Str string;
+        Str name;
+        Ptree root;
+        std::vector<Ptree *> stack;
+
+        struct a_object_s
+        {
+            context &c;
+            a_object_s(context &c): c(c) { }
+            void operator()(Ch) const
+            {
+                if (c.stack.empty())
+                    c.stack.push_back(&c.root);
+                else
+                {
+                    Ptree *parent = c.stack.back();
+                    Ptree *child = &parent->push_back(std::make_pair(c.name, Ptree()))->second;
+                    c.stack.push_back(child);
+                    c.name.clear();
+                }
+            }
+        };
+        
+        struct a_object_e
+        {
+            context &c;
+            a_object_e(context &c): c(c) { }
+            void operator()(Ch) const
+            {
+                BOOST_ASSERT(c.stack.size() >= 1);
+                c.stack.pop_back();
+            }
+        };
+
+        struct a_name
+        {
+            context &c;
+            a_name(context &c): c(c) { }
+            void operator()(It, It) const
+            {
+                c.name.swap(c.string);
+                c.string.clear();
+            }
+        };
+
+        struct a_string_val
+        {
+            context &c;
+            a_string_val(context &c): c(c) { }
+            void operator()(It, It) const
+            {
+                BOOST_ASSERT(c.stack.size() >= 1);
+                c.stack.back()->push_back(std::make_pair(c.name, Ptree(c.string)));
+                c.name.clear();
+                c.string.clear();
+            }
+        };
+
+        struct a_literal_val
+        {
+            context &c;
+            a_literal_val(context &c): c(c) { }
+            void operator()(It b, It e) const
+            {
+                BOOST_ASSERT(c.stack.size() >= 1);
+                c.stack.back()->push_back(std::make_pair(c.name, Str(b, e)));
+                c.name.clear();
+                c.string.clear();
+            }
+        };
+
+        struct a_char
+        {
+            context &c;
+            a_char(context &c): c(c) { }
+            void operator()(It b, It e) const
+            {
+                c.string += *b;
+            }
+        };
+
+        struct a_escape
+        {
+            context &c;
+            a_escape(context &c): c(c) { }
+            void operator()(Ch ch) const
+            {
+                switch (ch)
+                {
+                    case Ch('\"'): c.string += Ch('\"'); break;
+                    case Ch('\\'): c.string += Ch('\\'); break;
+                    case Ch('/'): c.string += Ch('/'); break;
+                    case Ch('b'): c.string += Ch('\b'); break;
+                    case Ch('f'): c.string += Ch('\f'); break;
+                    case Ch('n'): c.string += Ch('\n'); break;
+                    case Ch('r'): c.string += Ch('\r'); break;
+                    case Ch('t'): c.string += Ch('\t'); break;
+                    default: BOOST_ASSERT(0);
+                }
+            }
+        };
+
+        struct a_unicode
+        {
+            context &c;
+            a_unicode(context &c): c(c) { }
+            void operator()(unsigned long u) const
+            {
+                u = (std::min)(u, static_cast<unsigned long>((std::numeric_limits<Ch>::max)()));
+                c.string += Ch(u);
+            }
+        };
+
+    };
+
+    ///////////////////////////////////////////////////////////////////////
+    // Json grammar
+
+    template<class Ptree>
+    struct json_grammar :
+        public boost::spirit::classic::grammar<json_grammar<Ptree> >
+    {
+        
+        typedef context<Ptree> Context;
+        typedef typename Ptree::key_type::value_type Ch;
+
+        mutable Context c;
+        
+        template<class Scanner>
+        struct definition
+        {
+            
+            boost::spirit::classic::rule<Scanner>
+                root, object, member, array, item, value, string, number;
+            boost::spirit::classic::rule<
+                typename boost::spirit::classic::lexeme_scanner<Scanner>::type>
+                character, escape;
+
+            definition(const json_grammar &self)
+            {
+
+                using namespace boost::spirit::classic;
+                // There's a boost::assertion too, so another explicit using
+                // here:
+                using boost::spirit::classic::assertion;
+
+                // Assertions
+                assertion<std::string> expect_root("expected object or array");
+                assertion<std::string> expect_eoi("expected end of input");
+                assertion<std::string> expect_objclose("expected ',' or '}'");
+                assertion<std::string> expect_arrclose("expected ',' or ']'");
+                assertion<std::string> expect_name("expected object name");
+                assertion<std::string> expect_colon("expected ':'");
+                assertion<std::string> expect_value("expected value");
+                assertion<std::string> expect_escape("invalid escape sequence");
+
+                // JSON grammar rules
+                root 
+                    =   expect_root(object | array) 
+                        >> expect_eoi(end_p)
+                        ;
+                
+                object 
+                    =   ch_p('{')[typename Context::a_object_s(self.c)]
+                        >> (ch_p('}')[typename Context::a_object_e(self.c)] 
+                           | (list_p(member, ch_p(','))
+                              >> expect_objclose(ch_p('}')[typename Context::a_object_e(self.c)])
+                             )
+                           )
+                        ;
+                
+                member 
+                    =   expect_name(string[typename Context::a_name(self.c)]) 
+                        >> expect_colon(ch_p(':')) 
+                        >> expect_value(value)
+                        ;
+                
+                array 
+                    =   ch_p('[')[typename Context::a_object_s(self.c)]
+                        >> (ch_p(']')[typename Context::a_object_e(self.c)] 
+                            | (list_p(item, ch_p(','))
+                               >> expect_arrclose(ch_p(']')[typename Context::a_object_e(self.c)])
+                              )
+                           )
+                    ;
+
+                item 
+                    =   expect_value(value)
+                        ;
+
+                value 
+                    =   string[typename Context::a_string_val(self.c)] 
+                        | (number | str_p("true") | "false" | "null")[typename Context::a_literal_val(self.c)]
+                        | object 
+                        | array
+                        ;
+                
+                number 
+                    =   !ch_p("-") >>
+                        (ch_p("0") | (range_p(Ch('1'), Ch('9')) >> *digit_p)) >>
+                        !(ch_p(".") >> +digit_p) >>
+                        !(chset_p(detail::widen<Ch>("eE").c_str()) >>
+                          !chset_p(detail::widen<Ch>("-+").c_str()) >>
+                          +digit_p)
+                        ;
+
+                string
+                    =   +(lexeme_d[confix_p('\"', *character, '\"')])
+                        ;
+
+                character
+                    =   (anychar_p - "\\" - "\"")
+                            [typename Context::a_char(self.c)]
+                    |   ch_p("\\") >> expect_escape(escape)
+                    ;
+
+                escape
+                    =   chset_p(detail::widen<Ch>("\"\\/bfnrt").c_str())
+                            [typename Context::a_escape(self.c)]
+                    |   'u' >> uint_parser<unsigned long, 16, 4, 4>()
+                            [typename Context::a_unicode(self.c)]
+                    ;
+
+                // Debug
+                BOOST_SPIRIT_DEBUG_RULE(root);
+                BOOST_SPIRIT_DEBUG_RULE(object);
+                BOOST_SPIRIT_DEBUG_RULE(member);
+                BOOST_SPIRIT_DEBUG_RULE(array);
+                BOOST_SPIRIT_DEBUG_RULE(item);
+                BOOST_SPIRIT_DEBUG_RULE(value);
+                BOOST_SPIRIT_DEBUG_RULE(string);
+                BOOST_SPIRIT_DEBUG_RULE(number);
+                BOOST_SPIRIT_DEBUG_RULE(escape);
+                BOOST_SPIRIT_DEBUG_RULE(character);
+
+            }
+
+            const boost::spirit::classic::rule<Scanner> &start() const
+            {
+                return root;
+            }
+
+        };
+
+    };
+
+    template<class It, class Ch>
+    unsigned long count_lines(It begin, It end)
+    {
+        return static_cast<unsigned long>(std::count(begin, end, Ch('\n')) + 1);
+    }
+
+    template<class Ptree>
+    void read_json_internal(std::basic_istream<typename Ptree::key_type::value_type> &stream,
+                            Ptree &pt,
+                            const std::string &filename)
+    {
+
+        using namespace boost::spirit::classic;
+        typedef typename Ptree::key_type::value_type Ch;
+        typedef typename std::vector<Ch>::iterator It;
+
+        // Load data into vector
+        std::vector<Ch> v(std::istreambuf_iterator<Ch>(stream.rdbuf()),
+                          std::istreambuf_iterator<Ch>());
+        if (!stream.good())
+            BOOST_PROPERTY_TREE_THROW(json_parser_error("read error", filename, 0));
+        
+        // Prepare grammar
+        json_grammar<Ptree> g;
+
+        // Parse
+        try
+        {
+            parse_info<It> pi = parse(v.begin(), v.end(), g, 
+                                      space_p | comment_p("//") | comment_p("/*", "*/"));
+            if (!pi.hit || !pi.full)
+                BOOST_PROPERTY_TREE_THROW((parser_error<std::string, It>(v.begin(), "syntax error")));
+        }
+        catch (parser_error<std::string, It> &e)
+        {
+            BOOST_PROPERTY_TREE_THROW(json_parser_error(e.descriptor, filename, count_lines<It, Ch>(v.begin(), e.where)));
+        }
+
+        // Swap grammar context root and pt
+        pt.swap(g.c.root);
+
+    }
+
+} } }
+
+#endif

test/external/boost/property_tree/detail/json_parser_write.hpp

@@ -0,0 +1,170 @@
+// ----------------------------------------------------------------------------
+// Copyright (C) 2002-2006 Marcin Kalicinski
+//
+// 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_WRITE_HPP_INCLUDED
+#define BOOST_PROPERTY_TREE_DETAIL_JSON_PARSER_WRITE_HPP_INCLUDED
+
+#include <boost/property_tree/ptree.hpp>
+#include <boost/next_prior.hpp>
+#include <boost/type_traits/make_unsigned.hpp>
+#include <string>
+#include <ostream>
+#include <iomanip>
+
+namespace boost { namespace property_tree { namespace json_parser
+{
+
+    // Create necessary escape sequences from illegal characters
+    template<class Ch>
+    std::basic_string<Ch> create_escapes(const std::basic_string<Ch> &s)
+    {
+        std::basic_string<Ch> result;
+        typename std::basic_string<Ch>::const_iterator b = s.begin();
+        typename std::basic_string<Ch>::const_iterator e = s.end();
+        while (b != e)
+        {
+            // This assumes an ASCII superset. But so does everything in PTree.
+            // We escape everything outside ASCII, because this code can't
+            // handle high unicode characters.
+            if (*b == 0x20 || *b == 0x21 || (*b >= 0x23 && *b <= 0x2E) ||
+                (*b >= 0x30 && *b <= 0x5B) || (*b >= 0x5D && *b <= 0xFF))
+                result += *b;
+            else if (*b == Ch('\b')) result += Ch('\\'), result += Ch('b');
+            else if (*b == Ch('\f')) result += Ch('\\'), result += Ch('f');
+            else if (*b == Ch('\n')) result += Ch('\\'), result += Ch('n');
+            else if (*b == Ch('\r')) result += Ch('\\'), result += Ch('r');
+            else if (*b == Ch('/')) result += Ch('\\'), result += Ch('/');
+            else if (*b == Ch('"'))  result += Ch('\\'), result += Ch('"');
+            else if (*b == Ch('\\')) result += Ch('\\'), result += Ch('\\');
+            else
+            {
+                const char *hexdigits = "0123456789ABCDEF";
+                typedef typename make_unsigned<Ch>::type UCh;
+                unsigned long u = (std::min)(static_cast<unsigned long>(
+                                                 static_cast<UCh>(*b)),
+                                             0xFFFFul);
+                int d1 = u / 4096; u -= d1 * 4096;
+                int d2 = u / 256; u -= d2 * 256;
+                int d3 = u / 16; u -= d3 * 16;
+                int d4 = u;
+                result += Ch('\\'); result += Ch('u');
+                result += Ch(hexdigits[d1]); result += Ch(hexdigits[d2]);
+                result += Ch(hexdigits[d3]); result += Ch(hexdigits[d4]);
+            }
+            ++b;
+        }
+        return result;
+    }
+
+    template<class Ptree>
+    void write_json_helper(std::basic_ostream<typename Ptree::key_type::value_type> &stream, 
+                           const Ptree &pt,
+                           int indent, bool pretty)
+    {
+
+        typedef typename Ptree::key_type::value_type Ch;
+        typedef typename std::basic_string<Ch> Str;
+
+        // Value or object or array
+        if (indent > 0 && pt.empty())
+        {
+            // Write value
+            Str data = create_escapes(pt.template get_value<Str>());
+            stream << Ch('"') << data << Ch('"');
+
+        }
+        else if (indent > 0 && pt.count(Str()) == pt.size())
+        {
+            // Write array
+            stream << Ch('[');
+            if (pretty) stream << Ch('\n');
+            typename Ptree::const_iterator it = pt.begin();
+            for (; it != pt.end(); ++it)
+            {
+                if (pretty) stream << Str(4 * (indent + 1), Ch(' '));
+                write_json_helper(stream, it->second, indent + 1, pretty);
+                if (boost::next(it) != pt.end())
+                    stream << Ch(',');
+                if (pretty) stream << Ch('\n');
+            }
+            stream << Str(4 * indent, Ch(' ')) << Ch(']');
+
+        }
+        else
+        {
+            // Write object
+            stream << Ch('{');
+            if (pretty) stream << Ch('\n');
+            typename Ptree::const_iterator it = pt.begin();
+            for (; it != pt.end(); ++it)
+            {
+                if (pretty) stream << Str(4 * (indent + 1), Ch(' '));
+                stream << Ch('"') << create_escapes(it->first) << Ch('"') << Ch(':');
+                if (pretty) {
+                    if (it->second.empty())
+                        stream << Ch(' ');
+                    else
+                        stream << Ch('\n') << Str(4 * (indent + 1), Ch(' '));
+                }
+                write_json_helper(stream, it->second, indent + 1, pretty);
+                if (boost::next(it) != pt.end())
+                    stream << Ch(',');
+                if (pretty) stream << Ch('\n');
+            }
+            if (pretty) stream << Str(4 * indent, Ch(' '));
+            stream << Ch('}');
+        }
+
+    }
+
+    // Verify if ptree does not contain information that cannot be written to json
+    template<class Ptree>
+    bool verify_json(const Ptree &pt, int depth)
+    {
+
+        typedef typename Ptree::key_type::value_type Ch;
+        typedef typename std::basic_string<Ch> Str;
+
+        // Root ptree cannot have data
+        if (depth == 0 && !pt.template get_value<Str>().empty())
+            return false;
+        
+        // Ptree cannot have both children and data
+        if (!pt.template get_value<Str>().empty() && !pt.empty())
+            return false;
+
+        // Check children
+        typename Ptree::const_iterator it = pt.begin();
+        for (; it != pt.end(); ++it)
+            if (!verify_json(it->second, depth + 1))
+                return false;
+
+        // Success
+        return true;
+
+    }
+    
+    // Write ptree to json stream
+    template<class Ptree>
+    void write_json_internal(std::basic_ostream<typename Ptree::key_type::value_type> &stream, 
+                             const Ptree &pt,
+                             const std::string &filename,
+                             bool pretty)
+    {
+        if (!verify_json(pt, 0))
+            BOOST_PROPERTY_TREE_THROW(json_parser_error("ptree contains data that cannot be represented in JSON format", filename, 0));
+        write_json_helper(stream, pt, 0, pretty);
+        stream << std::endl;
+        if (!stream.good())
+            BOOST_PROPERTY_TREE_THROW(json_parser_error("write error", filename, 0));
+    }
+
+} } }
+
+#endif

test/external/boost/property_tree/detail/ptree_implementation.hpp

@@ -0,0 +1,905 @@
+// ----------------------------------------------------------------------------
+// Copyright (C) 2002-2006 Marcin Kalicinski
+// Copyright (C) 2009 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_PTREE_IMPLEMENTATION_HPP_INCLUDED
+#define BOOST_PROPERTY_TREE_DETAIL_PTREE_IMPLEMENTATION_HPP_INCLUDED
+
+#include <boost/iterator/iterator_adaptor.hpp>
+#include <boost/iterator/reverse_iterator.hpp>
+#include <boost/assert.hpp>
+#include <memory>
+
+#if defined(BOOST_MSVC) && \
+    (_MSC_FULL_VER >= 160000000 && _MSC_FULL_VER < 170000000)
+#define BOOST_PROPERTY_TREE_PAIR_BUG
+#endif
+
+namespace boost { namespace property_tree
+{
+    template <class K, class D, class C>
+    struct basic_ptree<K, D, C>::subs
+    {
+        struct by_name {};
+        // The actual child container.
+#if defined(BOOST_PROPERTY_TREE_PAIR_BUG)
+        // MSVC 10 has moved std::pair's members to a base
+        // class. Unfortunately this does break the interface.
+        BOOST_STATIC_CONSTANT(unsigned,
+            first_offset = offsetof(value_type, first));
+        typedef multi_index_container<value_type,
+            multi_index::indexed_by<
+                multi_index::sequenced<>,
+                multi_index::ordered_non_unique<multi_index::tag<by_name>,
+                    multi_index::member_offset<value_type, const key_type,
+                                        first_offset>,
+                    key_compare
+                >
+            >
+        > base_container;
+#else
+        typedef multi_index_container<value_type,
+            multi_index::indexed_by<
+                multi_index::sequenced<>,
+                multi_index::ordered_non_unique<multi_index::tag<by_name>,
+                    multi_index::member<value_type, const key_type,
+                                        &value_type::first>,
+                    key_compare
+                >
+            >
+        > base_container;
+#endif
+        // The by-name lookup index.
+        typedef typename base_container::template index<by_name>::type
+            by_name_index;
+
+        // Access functions for getting to the children of a tree.
+        static base_container& ch(self_type *s) {
+            return *static_cast<base_container*>(s->m_children);
+        }
+        static const base_container& ch(const self_type *s) {
+            return *static_cast<const base_container*>(s->m_children);
+        }
+        static by_name_index& assoc(self_type *s) {
+            return ch(s).BOOST_NESTED_TEMPLATE get<by_name>();
+        }
+        static const by_name_index& assoc(const self_type *s) {
+            return ch(s).BOOST_NESTED_TEMPLATE get<by_name>();
+        }
+    };
+    template <class K, class D, class C>
+    class basic_ptree<K, D, C>::iterator : public boost::iterator_adaptor<
+        iterator, typename subs::base_container::iterator, value_type>
+    {
+        friend class boost::iterator_core_access;
+        typedef boost::iterator_adaptor<
+            iterator, typename subs::base_container::iterator, value_type>
+            baset;
+    public:
+        typedef typename baset::reference reference;
+        iterator() {}
+        explicit iterator(typename iterator::base_type b)
+            : iterator::iterator_adaptor_(b)
+        {}
+        reference dereference() const
+        {
+            // multi_index doesn't allow modification of its values, because
+            // indexes could sort by anything, and modification screws that up.
+            // However, we only sort by the key, and it's protected against
+            // modification in the value_type, so this const_cast is safe.
+            return const_cast<reference>(*this->base_reference());
+        }
+    };
+    template <class K, class D, class C>
+    class basic_ptree<K, D, C>::const_iterator : public boost::iterator_adaptor<
+        const_iterator, typename subs::base_container::const_iterator>
+    {
+    public:
+        const_iterator() {}
+        explicit const_iterator(typename const_iterator::base_type b)
+            : const_iterator::iterator_adaptor_(b)
+        {}
+        const_iterator(iterator b)
+            : const_iterator::iterator_adaptor_(b.base())
+        {}
+    };
+    template <class K, class D, class C>
+    class basic_ptree<K, D, C>::reverse_iterator
+        : public boost::reverse_iterator<iterator>
+    {
+    public:
+        reverse_iterator() {}
+        explicit reverse_iterator(iterator b)
+            : boost::reverse_iterator<iterator>(b)
+        {}
+    };
+    template <class K, class D, class C>
+    class basic_ptree<K, D, C>::const_reverse_iterator
+        : public boost::reverse_iterator<const_iterator>
+    {
+    public:
+        const_reverse_iterator() {}
+        explicit const_reverse_iterator(const_iterator b)
+            : boost::reverse_iterator<const_iterator>(b)
+        {}
+        const_reverse_iterator(
+            typename basic_ptree<K, D, C>::reverse_iterator b)
+            : boost::reverse_iterator<const_iterator>(b)
+        {}
+    };
+    template <class K, class D, class C>
+    class basic_ptree<K, D, C>::assoc_iterator
+        : public boost::iterator_adaptor<assoc_iterator,
+                                         typename subs::by_name_index::iterator,
+                                         value_type>
+    {
+        friend class boost::iterator_core_access;
+        typedef boost::iterator_adaptor<assoc_iterator,
+                                         typename subs::by_name_index::iterator,
+                                         value_type>
+            baset;
+    public:
+        typedef typename baset::reference reference;
+        assoc_iterator() {}
+        explicit assoc_iterator(typename assoc_iterator::base_type b)
+            : assoc_iterator::iterator_adaptor_(b)
+        {}
+        reference dereference() const
+        {
+            return const_cast<reference>(*this->base_reference());
+        }
+    };
+    template <class K, class D, class C>
+    class basic_ptree<K, D, C>::const_assoc_iterator
+        : public boost::iterator_adaptor<const_assoc_iterator,
+                                   typename subs::by_name_index::const_iterator>
+    {
+    public:
+        const_assoc_iterator() {}
+        explicit const_assoc_iterator(
+            typename const_assoc_iterator::base_type b)
+            : const_assoc_iterator::iterator_adaptor_(b)
+        {}
+        const_assoc_iterator(assoc_iterator b)
+            : const_assoc_iterator::iterator_adaptor_(b.base())
+        {}
+    };
+
+
+    // Big five
+
+    // Perhaps the children collection could be created on-demand only, to
+    // reduce heap traffic. But that's a lot more work to implement.
+
+    template<class K, class D, class C> inline
+    basic_ptree<K, D, C>::basic_ptree()
+        : m_children(new typename subs::base_container)
+    {
+    }
+
+    template<class K, class D, class C> inline
+    basic_ptree<K, D, C>::basic_ptree(const data_type &d)
+        : m_data(d), m_children(new typename subs::base_container)
+    {
+    }
+
+    template<class K, class D, class C> inline
+    basic_ptree<K, D, C>::basic_ptree(const basic_ptree<K, D, C> &rhs)
+        : m_data(rhs.m_data),
+          m_children(new typename subs::base_container(subs::ch(&rhs)))
+    {
+    }
+
+    template<class K, class D, class C>
+    basic_ptree<K, D, C> &
+        basic_ptree<K, D, C>::operator =(const basic_ptree<K, D, C> &rhs)
+    {
+        self_type(rhs).swap(*this);
+        return *this;
+    }
+
+    template<class K, class D, class C>
+    basic_ptree<K, D, C>::~basic_ptree()
+    {
+        delete &subs::ch(this);
+    }
+
+    template<class K, class D, class C> inline
+    void basic_ptree<K, D, C>::swap(basic_ptree<K, D, C> &rhs)
+    {
+        m_data.swap(rhs.m_data);
+        // Void pointers, no ADL necessary
+        std::swap(m_children, rhs.m_children);
+    }
+
+    // Container view
+
+    template<class K, class D, class C> inline
+    typename basic_ptree<K, D, C>::size_type
+        basic_ptree<K, D, C>::size() const
+    {
+        return subs::ch(this).size();
+    }
+
+    template<class K, class D, class C> inline
+    typename basic_ptree<K, D, C>::size_type
+        basic_ptree<K, D, C>::max_size() const
+    {
+        return subs::ch(this).max_size();
+    }
+
+    template<class K, class D, class C> inline
+    bool basic_ptree<K, D, C>::empty() const
+    {
+        return subs::ch(this).empty();
+    }
+
+    template<class K, class D, class C> inline
+    typename basic_ptree<K, D, C>::iterator
+        basic_ptree<K, D, C>::begin()
+    {
+        return iterator(subs::ch(this).begin());
+    }
+
+    template<class K, class D, class C> inline
+    typename basic_ptree<K, D, C>::const_iterator
+        basic_ptree<K, D, C>::begin() const
+    {
+        return const_iterator(subs::ch(this).begin());
+    }
+
+    template<class K, class D, class C> inline
+    typename basic_ptree<K, D, C>::iterator
+        basic_ptree<K, D, C>::end()
+    {
+        return iterator(subs::ch(this).end());
+    }
+
+    template<class K, class D, class C> inline
+    typename basic_ptree<K, D, C>::const_iterator
+        basic_ptree<K, D, C>::end() const
+    {
+        return const_iterator(subs::ch(this).end());
+    }
+
+    template<class K, class D, class C> inline
+    typename basic_ptree<K, D, C>::reverse_iterator
+        basic_ptree<K, D, C>::rbegin()
+    {
+        return reverse_iterator(this->end());
+    }
+
+    template<class K, class D, class C> inline
+    typename basic_ptree<K, D, C>::const_reverse_iterator
+        basic_ptree<K, D, C>::rbegin() const
+    {
+        return const_reverse_iterator(this->end());
+    }
+
+    template<class K, class D, class C> inline
+    typename basic_ptree<K, D, C>::reverse_iterator
+        basic_ptree<K, D, C>::rend()
+    {
+        return reverse_iterator(this->begin());
+    }
+
+    template<class K, class D, class C> inline
+    typename basic_ptree<K, D, C>::const_reverse_iterator
+        basic_ptree<K, D, C>::rend() const
+    {
+        return const_reverse_iterator(this->begin());
+    }
+
+    template<class K, class D, class C> inline
+    typename basic_ptree<K, D, C>::value_type &
+        basic_ptree<K, D, C>::front()
+    {
+        return const_cast<value_type&>(subs::ch(this).front());
+    }
+
+    template<class K, class D, class C> inline
+    const typename basic_ptree<K, D, C>::value_type &
+        basic_ptree<K, D, C>::front() const
+    {
+        return subs::ch(this).front();
+    }
+
+    template<class K, class D, class C> inline
+    typename basic_ptree<K, D, C>::value_type &
+        basic_ptree<K, D, C>::back()
+    {
+        return const_cast<value_type&>(subs::ch(this).back());
+    }
+
+    template<class K, class D, class C> inline
+    const typename basic_ptree<K, D, C>::value_type &
+        basic_ptree<K, D, C>::back() const
+    {
+        return subs::ch(this).back();
+    }
+
+    template<class K, class D, class C> inline
+    typename basic_ptree<K, D, C>::iterator
+    basic_ptree<K, D, C>::insert(iterator where, const value_type &value)
+    {
+        return iterator(subs::ch(this).insert(where.base(), value).first);
+    }
+
+    template<class K, class D, class C>
+    template<class It> inline
+    void basic_ptree<K, D, C>::insert(iterator where, It first, It last)
+    {
+        subs::ch(this).insert(where.base(), first, last);
+    }
+
+    template<class K, class D, class C> inline
+    typename basic_ptree<K, D, C>::iterator
+        basic_ptree<K, D, C>::erase(iterator where)
+    {
+        return iterator(subs::ch(this).erase(where.base()));
+    }
+
+    template<class K, class D, class C> inline
+    typename basic_ptree<K, D, C>::iterator
+        basic_ptree<K, D, C>::erase(iterator first, iterator last)
+    {
+        return iterator(subs::ch(this).erase(first.base(), last.base()));
+    }
+
+    template<class K, class D, class C> inline
+    typename basic_ptree<K, D, C>::iterator
+        basic_ptree<K, D, C>::push_front(const value_type &value)
+    {
+        return iterator(subs::ch(this).push_front(value).first);
+    }
+
+    template<class K, class D, class C> inline
+    typename basic_ptree<K, D, C>::iterator
+        basic_ptree<K, D, C>::push_back(const value_type &value)
+    {
+        return iterator(subs::ch(this).push_back(value).first);
+    }
+
+    template<class K, class D, class C> inline
+    void basic_ptree<K, D, C>::pop_front()
+    {
+        subs::ch(this).pop_front();
+    }
+
+    template<class K, class D, class C> inline
+    void basic_ptree<K, D, C>::pop_back()
+    {
+        subs::ch(this).pop_back();
+    }
+
+    template<class K, class D, class C> inline
+    void basic_ptree<K, D, C>::reverse()
+    {
+        subs::ch(this).reverse();
+    }
+
+    template<class K, class D, class C> inline
+    void basic_ptree<K, D, C>::sort()
+    {
+        subs::ch(this).sort();
+    }
+
+    template<class K, class D, class C>
+    template<class Compare> inline
+    void basic_ptree<K, D, C>::sort(Compare comp)
+    {
+        subs::ch(this).sort(comp);
+    }
+
+    // Equality
+
+    template<class K, class D, class C> inline
+    bool basic_ptree<K, D, C>::operator ==(
+                                  const basic_ptree<K, D, C> &rhs) const
+    {
+        // The size test is cheap, so add it as an optimization
+        return size() == rhs.size() && data() == rhs.data() &&
+            subs::ch(this) == subs::ch(&rhs);
+    }
+
+    template<class K, class D, class C> inline
+    bool basic_ptree<K, D, C>::operator !=(
+                                  const basic_ptree<K, D, C> &rhs) const
+    {
+        return !(*this == rhs);
+    }
+
+    // Associative view
+
+    template<class K, class D, class C> inline
+    typename basic_ptree<K, D, C>::assoc_iterator
+        basic_ptree<K, D, C>::ordered_begin()
+    {
+        return assoc_iterator(subs::assoc(this).begin());
+    }
+
+    template<class K, class D, class C> inline
+    typename basic_ptree<K, D, C>::const_assoc_iterator
+        basic_ptree<K, D, C>::ordered_begin() const
+    {
+        return const_assoc_iterator(subs::assoc(this).begin());
+    }
+
+    template<class K, class D, class C> inline
+    typename basic_ptree<K, D, C>::assoc_iterator
+        basic_ptree<K, D, C>::not_found()
+    {
+        return assoc_iterator(subs::assoc(this).end());
+    }
+
+    template<class K, class D, class C> inline
+    typename basic_ptree<K, D, C>::const_assoc_iterator
+        basic_ptree<K, D, C>::not_found() const
+    {
+        return const_assoc_iterator(subs::assoc(this).end());
+    }
+
+    template<class K, class D, class C> inline
+    typename basic_ptree<K, D, C>::assoc_iterator
+        basic_ptree<K, D, C>::find(const key_type &key)
+    {
+        return assoc_iterator(subs::assoc(this).find(key));
+    }
+
+    template<class K, class D, class C> inline
+    typename basic_ptree<K, D, C>::const_assoc_iterator
+        basic_ptree<K, D, C>::find(const key_type &key) const
+    {
+        return const_assoc_iterator(subs::assoc(this).find(key));
+    }
+
+    template<class K, class D, class C> inline
+    std::pair<
+        typename basic_ptree<K, D, C>::assoc_iterator,
+        typename basic_ptree<K, D, C>::assoc_iterator
+    > basic_ptree<K, D, C>::equal_range(const key_type &key)
+    {
+        std::pair<typename subs::by_name_index::iterator,
+                  typename subs::by_name_index::iterator> r(
+            subs::assoc(this).equal_range(key));
+        return std::pair<assoc_iterator, assoc_iterator>(
+          assoc_iterator(r.first), assoc_iterator(r.second));
+    }
+
+    template<class K, class D, class C> inline
+    std::pair<
+        typename basic_ptree<K, D, C>::const_assoc_iterator,
+        typename basic_ptree<K, D, C>::const_assoc_iterator
+    > basic_ptree<K, D, C>::equal_range(const key_type &key) const
+    {
+        std::pair<typename subs::by_name_index::const_iterator,
+                  typename subs::by_name_index::const_iterator> r(
+            subs::assoc(this).equal_range(key));
+        return std::pair<const_assoc_iterator, const_assoc_iterator>(
+            const_assoc_iterator(r.first), const_assoc_iterator(r.second));
+    }
+
+    template<class K, class D, class C> inline
+    typename basic_ptree<K, D, C>::size_type
+        basic_ptree<K, D, C>::count(const key_type &key) const
+    {
+        return subs::assoc(this).count(key);
+    }
+
+    template<class K, class D, class C> inline
+    typename basic_ptree<K, D, C>::size_type
+        basic_ptree<K, D, C>::erase(const key_type &key)
+    {
+        return subs::assoc(this).erase(key);
+    }
+
+    template<class K, class D, class C> inline
+    typename basic_ptree<K, D, C>::iterator
+        basic_ptree<K, D, C>::to_iterator(assoc_iterator ai)
+    {
+        return iterator(subs::ch(this).
+            BOOST_NESTED_TEMPLATE project<0>(ai.base()));
+    }
+
+    template<class K, class D, class C> inline
+    typename basic_ptree<K, D, C>::const_iterator
+        basic_ptree<K, D, C>::to_iterator(const_assoc_iterator ai) const
+    {
+        return const_iterator(subs::ch(this).
+            BOOST_NESTED_TEMPLATE project<0>(ai.base()));
+    }
+
+    // Property tree view
+
+    template<class K, class D, class C> inline
+    typename basic_ptree<K, D, C>::data_type &
+        basic_ptree<K, D, C>::data()
+    {
+        return m_data;
+    }
+
+    template<class K, class D, class C> inline
+    const typename basic_ptree<K, D, C>::data_type &
+        basic_ptree<K, D, C>::data() const
+    {
+        return m_data;
+    }
+
+    template<class K, class D, class C> inline
+    void basic_ptree<K, D, C>::clear()
+    {
+        m_data = data_type();
+        subs::ch(this).clear();
+    }
+
+    template<class K, class D, class C>
+    basic_ptree<K, D, C> &
+        basic_ptree<K, D, C>::get_child(const path_type &path)
+    {
+        path_type p(path);
+        self_type *n = walk_path(p);
+        if (!n) {
+            BOOST_PROPERTY_TREE_THROW(ptree_bad_path("No such node", path));
+        }
+        return *n;
+    }
+
+    template<class K, class D, class C> inline
+    const basic_ptree<K, D, C> &
+        basic_ptree<K, D, C>::get_child(const path_type &path) const
+    {
+        return const_cast<self_type*>(this)->get_child(path);
+    }
+
+    template<class K, class D, class C> inline
+    basic_ptree<K, D, C> &
+        basic_ptree<K, D, C>::get_child(const path_type &path,
+                                        self_type &default_value)
+    {
+        path_type p(path);
+        self_type *n = walk_path(p);
+        return n ? *n : default_value;
+    }
+
+    template<class K, class D, class C> inline
+    const basic_ptree<K, D, C> &
+        basic_ptree<K, D, C>::get_child(const path_type &path,
+                                        const self_type &default_value) const
+    {
+        return const_cast<self_type*>(this)->get_child(path,
+            const_cast<self_type&>(default_value));
+    }
+
+
+    template<class K, class D, class C>
+    optional<basic_ptree<K, D, C> &>
+        basic_ptree<K, D, C>::get_child_optional(const path_type &path)
+    {
+        path_type p(path);
+        self_type *n = walk_path(p);
+        if (!n) {
+            return optional<self_type&>();
+        }
+        return *n;
+    }
+
+    template<class K, class D, class C>
+    optional<const basic_ptree<K, D, C> &>
+        basic_ptree<K, D, C>::get_child_optional(const path_type &path) const
+    {
+        path_type p(path);
+        self_type *n = walk_path(p);
+        if (!n) {
+            return optional<const self_type&>();
+        }
+        return *n;
+    }
+
+    template<class K, class D, class C>
+    basic_ptree<K, D, C> &
+        basic_ptree<K, D, C>::put_child(const path_type &path,
+                                        const self_type &value)
+    {
+        path_type p(path);
+        self_type &parent = force_path(p);
+        // Got the parent. Now get the correct child.
+        key_type fragment = p.reduce();
+        assoc_iterator el = parent.find(fragment);
+        // If the new child exists, replace it.
+        if(el != parent.not_found()) {
+            return el->second = value;
+        } else {
+            return parent.push_back(value_type(fragment, value))->second;
+        }
+    }
+
+    template<class K, class D, class C>
+    basic_ptree<K, D, C> &
+        basic_ptree<K, D, C>::add_child(const path_type &path,
+                                        const self_type &value)
+    {
+        path_type p(path);
+        self_type &parent = force_path(p);
+        // Got the parent.
+        key_type fragment = p.reduce();
+        return parent.push_back(value_type(fragment, value))->second;
+    }
+
+    template<class K, class D, class C>
+    template<class Type, class Translator>
+    typename boost::enable_if<detail::is_translator<Translator>, Type>::type
+    basic_ptree<K, D, C>::get_value(Translator tr) const
+    {
+        if(boost::optional<Type> o = get_value_optional<Type>(tr)) {
+            return *o;
+        }
+        BOOST_PROPERTY_TREE_THROW(ptree_bad_data(
+            std::string("conversion of data to type \"") +
+            typeid(Type).name() + "\" failed", data()));
+    }
+
+    template<class K, class D, class C>
+    template<class Type> inline
+    Type basic_ptree<K, D, C>::get_value() const
+    {
+        return get_value<Type>(
+            typename translator_between<data_type, Type>::type());
+    }
+
+    template<class K, class D, class C>
+    template<class Type, class Translator> inline
+    Type basic_ptree<K, D, C>::get_value(const Type &default_value,
+                                         Translator tr) const
+    {
+        return get_value_optional<Type>(tr).get_value_or(default_value);
+    }
+
+    template<class K, class D, class C>
+    template <class Ch, class Translator>
+    typename boost::enable_if<
+        detail::is_character<Ch>,
+        std::basic_string<Ch>
+    >::type
+    basic_ptree<K, D, C>::get_value(const Ch *default_value, Translator tr)const
+    {
+        return get_value<std::basic_string<Ch>, Translator>(default_value, tr);
+    }
+
+    template<class K, class D, class C>
+    template<class Type> inline
+    typename boost::disable_if<detail::is_translator<Type>, Type>::type
+    basic_ptree<K, D, C>::get_value(const Type &default_value) const
+    {
+        return get_value(default_value,
+                         typename translator_between<data_type, Type>::type());
+    }
+
+    template<class K, class D, class C>
+    template <class Ch>
+    typename boost::enable_if<
+        detail::is_character<Ch>,
+        std::basic_string<Ch>
+    >::type
+    basic_ptree<K, D, C>::get_value(const Ch *default_value) const
+    {
+        return get_value< std::basic_string<Ch> >(default_value);
+    }
+
+    template<class K, class D, class C>
+    template<class Type, class Translator> inline
+    optional<Type> basic_ptree<K, D, C>::get_value_optional(
+                                                Translator tr) const
+    {
+        return tr.get_value(data());
+    }
+
+    template<class K, class D, class C>
+    template<class Type> inline
+    optional<Type> basic_ptree<K, D, C>::get_value_optional() const
+    {
+        return get_value_optional<Type>(
+            typename translator_between<data_type, Type>::type());
+    }
+
+    template<class K, class D, class C>
+    template<class Type, class Translator> inline
+    typename boost::enable_if<detail::is_translator<Translator>, Type>::type
+    basic_ptree<K, D, C>::get(const path_type &path,
+                              Translator tr) const
+    {
+        return get_child(path).BOOST_NESTED_TEMPLATE get_value<Type>(tr);
+    }
+
+    template<class K, class D, class C>
+    template<class Type> inline
+    Type basic_ptree<K, D, C>::get(const path_type &path) const
+    {
+        return get_child(path).BOOST_NESTED_TEMPLATE get_value<Type>();
+    }
+
+    template<class K, class D, class C>
+    template<class Type, class Translator> inline
+    Type basic_ptree<K, D, C>::get(const path_type &path,
+                                   const Type &default_value,
+                                   Translator tr) const
+    {
+        return get_optional<Type>(path, tr).get_value_or(default_value);
+    }
+
+    template<class K, class D, class C>
+    template <class Ch, class Translator>
+    typename boost::enable_if<
+        detail::is_character<Ch>,
+        std::basic_string<Ch>
+    >::type
+    basic_ptree<K, D, C>::get(
+        const path_type &path, const Ch *default_value, Translator tr) const
+    {
+        return get<std::basic_string<Ch>, Translator>(path, default_value, tr);
+    }
+
+    template<class K, class D, class C>
+    template<class Type> inline
+    typename boost::disable_if<detail::is_translator<Type>, Type>::type
+    basic_ptree<K, D, C>::get(const path_type &path,
+                              const Type &default_value) const
+    {
+        return get_optional<Type>(path).get_value_or(default_value);
+    }
+
+    template<class K, class D, class C>
+    template <class Ch>
+    typename boost::enable_if<
+        detail::is_character<Ch>,
+        std::basic_string<Ch>
+    >::type
+    basic_ptree<K, D, C>::get(
+        const path_type &path, const Ch *default_value) const
+    {
+        return get< std::basic_string<Ch> >(path, default_value);
+    }
+
+    template<class K, class D, class C>
+    template<class Type, class Translator>
+    optional<Type> basic_ptree<K, D, C>::get_optional(const path_type &path,
+                                                         Translator tr) const
+    {
+        if (optional<const self_type&> child = get_child_optional(path))
+            return child.get().
+                BOOST_NESTED_TEMPLATE get_value_optional<Type>(tr);
+        else
+            return optional<Type>();
+    }
+
+    template<class K, class D, class C>
+    template<class Type>
+    optional<Type> basic_ptree<K, D, C>::get_optional(
+                                                const path_type &path) const
+    {
+        if (optional<const self_type&> child = get_child_optional(path))
+            return child.get().BOOST_NESTED_TEMPLATE get_value_optional<Type>();
+        else
+            return optional<Type>();
+    }
+
+    template<class K, class D, class C>
+    template<class Type, class Translator>
+    void basic_ptree<K, D, C>::put_value(const Type &value, Translator tr)
+    {
+        if(optional<data_type> o = tr.put_value(value)) {
+            data() = *o;
+        } else {
+            BOOST_PROPERTY_TREE_THROW(ptree_bad_data(
+                std::string("conversion of type \"") + typeid(Type).name() +
+                "\" to data failed", boost::any()));
+        }
+    }
+
+    template<class K, class D, class C>
+    template<class Type> inline
+    void basic_ptree<K, D, C>::put_value(const Type &value)
+    {
+        put_value(value, typename translator_between<data_type, Type>::type());
+    }
+
+    template<class K, class D, class C>
+    template<class Type, typename Translator>
+    basic_ptree<K, D, C> & basic_ptree<K, D, C>::put(
+        const path_type &path, const Type &value, Translator tr)
+    {
+        if(optional<self_type &> child = get_child_optional(path)) {
+            child.get().put_value(value, tr);
+            return *child;
+        } else {
+            self_type &child2 = put_child(path, self_type());
+            child2.put_value(value, tr);
+            return child2;
+        }
+    }
+
+    template<class K, class D, class C>
+    template<class Type> inline
+    basic_ptree<K, D, C> & basic_ptree<K, D, C>::put(
+        const path_type &path, const Type &value)
+    {
+        return put(path, value,
+                   typename translator_between<data_type, Type>::type());
+    }
+
+    template<class K, class D, class C>
+    template<class Type, typename Translator> inline
+    basic_ptree<K, D, C> & basic_ptree<K, D, C>::add(
+        const path_type &path, const Type &value, Translator tr)
+    {
+        self_type &child = add_child(path, self_type());
+        child.put_value(value, tr);
+        return child;
+    }
+
+    template<class K, class D, class C>
+    template<class Type> inline
+    basic_ptree<K, D, C> & basic_ptree<K, D, C>::add(
+        const path_type &path, const Type &value)
+    {
+        return add(path, value,
+                   typename translator_between<data_type, Type>::type());
+    }
+
+
+    template<class K, class D, class C>
+    basic_ptree<K, D, C> *
+    basic_ptree<K, D, C>::walk_path(path_type &p) const
+    {
+        if(p.empty()) {
+            // I'm the child we're looking for.
+            return const_cast<basic_ptree*>(this);
+        }
+        // Recurse down the tree to find the path.
+        key_type fragment = p.reduce();
+        const_assoc_iterator el = find(fragment);
+        if(el == not_found()) {
+            // No such child.
+            return 0;
+        }
+        // Not done yet, recurse.
+        return el->second.walk_path(p);
+    }
+
+    template<class K, class D, class C>
+    basic_ptree<K, D, C> & basic_ptree<K, D, C>::force_path(path_type &p)
+    {
+        BOOST_ASSERT(!p.empty() && "Empty path not allowed for put_child.");
+        if(p.single()) {
+            // I'm the parent we're looking for.
+            return *this;
+        }
+        key_type fragment = p.reduce();
+        assoc_iterator el = find(fragment);
+        // If we've found an existing child, go down that path. Else
+        // create a new one.
+        self_type& child = el == not_found() ?
+            push_back(value_type(fragment, self_type()))->second : el->second;
+        return child.force_path(p);
+    }
+
+    // Free functions
+
+    template<class K, class D, class C>
+    inline void swap(basic_ptree<K, D, C> &pt1, basic_ptree<K, D, C> &pt2)
+    {
+        pt1.swap(pt2);
+    }
+
+} }
+
+#if defined(BOOST_PROPERTY_TREE_PAIR_BUG)
+#undef BOOST_PROPERTY_TREE_PAIR_BUG
+#endif
+
+#endif

test/external/boost/property_tree/detail/ptree_utils.hpp

@@ -0,0 +1,106 @@
+// ----------------------------------------------------------------------------
+// Copyright (C) 2002-2006 Marcin Kalicinski
+//
+// 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_PTREE_UTILS_HPP_INCLUDED
+#define BOOST_PROPERTY_TREE_DETAIL_PTREE_UTILS_HPP_INCLUDED
+
+#include <boost/limits.hpp>
+#include <boost/type_traits/integral_constant.hpp>
+#include <boost/mpl/has_xxx.hpp>
+#include <boost/mpl/and.hpp>
+#include <string>
+#include <algorithm>
+#include <locale>
+
+namespace boost { namespace property_tree { namespace detail
+{
+
+    template<class T>
+    struct less_nocase
+    {
+        typedef typename T::value_type Ch;
+        std::locale m_locale;
+        inline bool operator()(Ch c1, Ch c2) const
+        {
+            return std::toupper(c1, m_locale) < std::toupper(c2, m_locale);
+        }
+        inline bool operator()(const T &t1, const T &t2) const
+        {
+            return std::lexicographical_compare(t1.begin(), t1.end(),
+                                                t2.begin(), t2.end(), *this);
+        }
+    };
+
+    template <typename Ch>
+    struct is_character : public boost::false_type {};
+    template <>
+    struct is_character<char> : public boost::true_type {};
+    template <>
+    struct is_character<wchar_t> : public boost::true_type {};
+
+
+    BOOST_MPL_HAS_XXX_TRAIT_DEF(internal_type)
+    BOOST_MPL_HAS_XXX_TRAIT_DEF(external_type)
+    template <typename T>
+    struct is_translator : public boost::mpl::and_<
+        has_internal_type<T>, has_external_type<T> > {};
+
+
+
+    // Naively convert narrow string to another character type
+    template<class Ch>
+    std::basic_string<Ch> widen(const char *text)
+    {
+        std::basic_string<Ch> result;
+        while (*text)
+        {
+            result += Ch(*text);
+            ++text;
+        }
+        return result;
+    }
+
+    // Naively convert string to narrow character type
+    template<class Ch>
+    std::string narrow(const Ch *text)
+    {
+        std::string result;
+        while (*text)
+        {
+            if (*text < 0 || *text > (std::numeric_limits<char>::max)())
+                result += '*';
+            else
+                result += char(*text);
+            ++text;
+        }
+        return result;
+    }
+
+    // Remove trailing and leading spaces
+    template<class Ch>
+    std::basic_string<Ch> trim(const std::basic_string<Ch> &s,
+                               const std::locale &loc = std::locale())
+    {
+        typename std::basic_string<Ch>::const_iterator first = s.begin();
+        typename std::basic_string<Ch>::const_iterator end = s.end();
+        while (first != end && std::isspace(*first, loc))
+            ++first;
+        if (first == end)
+            return std::basic_string<Ch>();
+        typename std::basic_string<Ch>::const_iterator last = end;
+        do --last; while (std::isspace(*last, loc));
+        if (first != s.begin() || last + 1 != end)
+            return std::basic_string<Ch>(first, last + 1);
+        else
+            return s;
+    }
+
+} } }
+
+#endif

test/external/boost/property_tree/detail/xml_parser_error.hpp

@@ -0,0 +1,33 @@
+// ----------------------------------------------------------------------------
+// Copyright (C) 2002-2006 Marcin Kalicinski
+//
+// 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_XML_PARSER_ERROR_HPP_INCLUDED
+#define BOOST_PROPERTY_TREE_DETAIL_XML_PARSER_ERROR_HPP_INCLUDED
+
+#include <boost/property_tree/detail/file_parser_error.hpp>
+#include <string>
+
+namespace boost { namespace property_tree { namespace xml_parser
+{
+
+    //! Xml parser error
+    class xml_parser_error: public file_parser_error
+    {
+    public:
+        xml_parser_error(const std::string &msg,
+                         const std::string &file,
+                         unsigned long l):
+            file_parser_error(msg, file, l)
+        {
+        }
+    };
+
+} } }
+
+#endif

test/external/boost/property_tree/detail/xml_parser_flags.hpp

@@ -0,0 +1,31 @@
+// ----------------------------------------------------------------------------
+// Copyright (C) 2002-2006 Marcin Kalicinski
+//
+// 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_XML_PARSER_FLAGS_HPP_INCLUDED
+#define BOOST_PROPERTY_TREE_DETAIL_XML_PARSER_FLAGS_HPP_INCLUDED
+
+namespace boost { namespace property_tree { namespace xml_parser
+{
+
+    /// Text elements should be put in separate keys,
+    /// not concatenated in parent data.
+    static const int no_concat_text  = 0x1;
+    /// Comments should be omitted.
+    static const int no_comments     = 0x2;
+    /// Whitespace should be collapsed and trimmed.
+    static const int trim_whitespace = 0x4;
+
+    inline bool validate_flags(int flags)
+    {
+        return (flags & ~(no_concat_text | no_comments | trim_whitespace)) == 0;
+    }
+
+} } }
+
+#endif

test/external/boost/property_tree/detail/xml_parser_read_rapidxml.hpp

@@ -0,0 +1,144 @@
+// ----------------------------------------------------------------------------
+// Copyright (C) 2007 Marcin Kalicinski
+//
+// 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_XML_PARSER_READ_RAPIDXML_HPP_INCLUDED
+#define BOOST_PROPERTY_TREE_DETAIL_XML_PARSER_READ_RAPIDXML_HPP_INCLUDED
+
+#include <boost/property_tree/ptree.hpp>
+#include <boost/property_tree/detail/xml_parser_error.hpp>
+#include <boost/property_tree/detail/xml_parser_flags.hpp>
+#include <boost/property_tree/detail/xml_parser_utils.hpp>
+#include <boost/property_tree/detail/rapidxml.hpp>
+#include <vector>
+
+namespace boost { namespace property_tree { namespace xml_parser
+{
+
+    template<class Ptree, class Ch>
+    void read_xml_node(detail::rapidxml::xml_node<Ch> *node,
+                       Ptree &pt, int flags)
+    {
+        using namespace detail::rapidxml;
+        switch (node->type())
+        {
+            // Element nodes
+            case node_element: 
+            {
+                // Create node
+                Ptree &pt_node = pt.push_back(std::make_pair(node->name(),
+                                                             Ptree()))->second;
+
+                // Copy attributes
+                if (node->first_attribute())
+                {
+                    Ptree &pt_attr_root = pt_node.push_back(
+                        std::make_pair(xmlattr<Ch>(), Ptree()))->second;
+                    for (xml_attribute<Ch> *attr = node->first_attribute();
+                         attr; attr = attr->next_attribute())
+                    {
+                        Ptree &pt_attr = pt_attr_root.push_back(
+                            std::make_pair(attr->name(), Ptree()))->second;
+                        pt_attr.data() = attr->value();
+                    }
+                }
+
+                // Copy children
+                for (xml_node<Ch> *child = node->first_node();
+                     child; child = child->next_sibling())
+                    read_xml_node(child, pt_node, flags);
+            }
+            break;
+
+            // Data nodes
+            case node_data:
+            case node_cdata:
+            {
+                if (flags & no_concat_text)
+                    pt.push_back(std::make_pair(xmltext<Ch>(),
+                                                Ptree(node->value())));
+                else
+                    pt.data() += node->value();
+            }
+            break;
+
+            // Comment nodes
+            case node_comment:
+            {
+                if (!(flags & no_comments))
+                    pt.push_back(std::make_pair(xmlcomment<Ch>(),
+                                                Ptree(node->value())));
+            }
+            break;
+
+            default:
+                // Skip other node types
+                break;
+        }
+    }
+
+    template<class Ptree>
+    void read_xml_internal(std::basic_istream<
+                               typename Ptree::key_type::value_type> &stream,
+                           Ptree &pt,
+                           int flags,
+                           const std::string &filename)
+    {
+        typedef typename Ptree::key_type::value_type Ch;
+        using namespace detail::rapidxml;
+
+        // Load data into vector
+        stream.unsetf(std::ios::skipws);
+        std::vector<Ch> v(std::istreambuf_iterator<Ch>(stream.rdbuf()),
+                          std::istreambuf_iterator<Ch>());
+        if (!stream.good())
+            BOOST_PROPERTY_TREE_THROW(
+                xml_parser_error("read error", filename, 0));
+        v.push_back(0); // zero-terminate
+
+        try {
+            // Parse using appropriate flags
+            const int f_tws = parse_normalize_whitespace
+                            | parse_trim_whitespace;
+            const int f_c = parse_comment_nodes;
+            // Some compilers don't like the bitwise or in the template arg.
+            const int f_tws_c = parse_normalize_whitespace
+                              | parse_trim_whitespace
+                              | parse_comment_nodes;
+            xml_document<Ch> doc;
+            if (flags & no_comments) {
+                if (flags & trim_whitespace)
+                    doc.BOOST_NESTED_TEMPLATE parse<f_tws>(&v.front());
+                else
+                    doc.BOOST_NESTED_TEMPLATE parse<0>(&v.front());
+            } else {
+                if (flags & trim_whitespace)
+                    doc.BOOST_NESTED_TEMPLATE parse<f_tws_c>(&v.front());
+                else
+                    doc.BOOST_NESTED_TEMPLATE parse<f_c>(&v.front());
+            }
+
+            // Create ptree from nodes
+            Ptree local;
+            for (xml_node<Ch> *child = doc.first_node();
+                 child; child = child->next_sibling())
+                read_xml_node(child, local, flags);
+
+            // Swap local and result ptrees
+            pt.swap(local);
+        } catch (parse_error &e) {
+            long line = static_cast<long>(
+                std::count(&v.front(), e.where<Ch>(), Ch('\n')) + 1);
+            BOOST_PROPERTY_TREE_THROW(
+                xml_parser_error(e.what(), filename, line));  
+        }
+    }
+
+} } }
+
+#endif

test/external/boost/property_tree/detail/xml_parser_utils.hpp

@@ -0,0 +1,136 @@
+// ----------------------------------------------------------------------------
+// Copyright (C) 2002-2006 Marcin Kalicinski
+//
+// 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_XML_PARSER_UTILS_HPP_INCLUDED
+#define BOOST_PROPERTY_TREE_DETAIL_XML_PARSER_UTILS_HPP_INCLUDED
+
+#include <boost/property_tree/detail/ptree_utils.hpp>
+#include <boost/property_tree/detail/xml_parser_error.hpp>
+#include <boost/property_tree/detail/xml_parser_writer_settings.hpp>
+#include <string>
+#include <algorithm>
+#include <locale>
+
+namespace boost { namespace property_tree { namespace xml_parser
+{
+
+    template<class Ch>
+    std::basic_string<Ch> condense(const std::basic_string<Ch> &s)
+    {
+        std::basic_string<Ch> r;
+        std::locale loc;
+        bool space = false;
+        typename std::basic_string<Ch>::const_iterator end = s.end();
+        for (typename std::basic_string<Ch>::const_iterator it = s.begin();
+             it != end; ++it)
+        {
+            if (isspace(*it, loc) || *it == Ch('\n'))
+            {
+                if (!space)
+                    r += Ch(' '), space = true;
+            }
+            else
+                r += *it, space = false;
+        }
+        return r;
+    }
+
+    template<class Ch>
+    std::basic_string<Ch> encode_char_entities(const std::basic_string<Ch> &s)
+    {
+        // Don't do anything for empty strings.
+        if(s.empty()) return s;
+
+        typedef typename std::basic_string<Ch> Str;
+        Str r;
+        // To properly round-trip spaces and not uglify the XML beyond
+        // recognition, we have to encode them IF the text contains only spaces.
+        Str sp(1, Ch(' '));
+        if(s.find_first_not_of(sp) == Str::npos) {
+            // The first will suffice.
+            r = detail::widen<Ch>("&#32;");
+            r += Str(s.size() - 1, Ch(' '));
+        } else {
+            typename Str::const_iterator end = s.end();
+            for (typename Str::const_iterator it = s.begin(); it != end; ++it)
+            {
+                switch (*it)
+                {
+                    case Ch('<'): r += detail::widen<Ch>("&lt;"); break;
+                    case Ch('>'): r += detail::widen<Ch>("&gt;"); break;
+                    case Ch('&'): r += detail::widen<Ch>("&amp;"); break;
+                    case Ch('"'): r += detail::widen<Ch>("&quot;"); break;
+                    case Ch('\''): r += detail::widen<Ch>("&apos;"); break;
+                    default: r += *it; break;
+                }
+            }
+        }
+        return r;
+    }
+    
+    template<class Ch>
+    std::basic_string<Ch> decode_char_entities(const std::basic_string<Ch> &s)
+    {
+        typedef typename std::basic_string<Ch> Str;
+        Str r;
+        typename Str::const_iterator end = s.end();
+        for (typename Str::const_iterator it = s.begin(); it != end; ++it)
+        {
+            if (*it == Ch('&'))
+            {
+                typename Str::const_iterator semicolon = std::find(it + 1, end, Ch(';'));
+                if (semicolon == end)
+                    BOOST_PROPERTY_TREE_THROW(xml_parser_error("invalid character entity", "", 0));
+                Str ent(it + 1, semicolon);
+                if (ent == detail::widen<Ch>("lt")) r += Ch('<');
+                else if (ent == detail::widen<Ch>("gt")) r += Ch('>');
+                else if (ent == detail::widen<Ch>("amp")) r += Ch('&');
+                else if (ent == detail::widen<Ch>("quot")) r += Ch('"');
+                else if (ent == detail::widen<Ch>("apos")) r += Ch('\'');
+                else
+                    BOOST_PROPERTY_TREE_THROW(xml_parser_error("invalid character entity", "", 0));
+                it = semicolon;
+            }
+            else
+                r += *it;
+        }
+        return r;
+    }
+    
+    template<class Ch>
+    const std::basic_string<Ch> &xmldecl()
+    {
+        static std::basic_string<Ch> s = detail::widen<Ch>("<?xml>");
+        return s;
+    }
+
+    template<class Ch>
+    const std::basic_string<Ch> &xmlattr()
+    {
+        static std::basic_string<Ch> s = detail::widen<Ch>("<xmlattr>");
+        return s;
+    }
+
+    template<class Ch>
+    const std::basic_string<Ch> &xmlcomment()
+    {
+        static std::basic_string<Ch> s = detail::widen<Ch>("<xmlcomment>");
+        return s;
+    }
+
+    template<class Ch>
+    const std::basic_string<Ch> &xmltext()
+    {
+        static std::basic_string<Ch> s = detail::widen<Ch>("<xmltext>");
+        return s;
+    }
+
+} } }
+
+#endif

test/external/boost/property_tree/detail/xml_parser_write.hpp

@@ -0,0 +1,194 @@
+// ----------------------------------------------------------------------------
+// Copyright (C) 2002-2006 Marcin Kalicinski
+//
+// 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_XML_PARSER_WRITE_HPP_INCLUDED
+#define BOOST_PROPERTY_TREE_DETAIL_XML_PARSER_WRITE_HPP_INCLUDED
+
+#include <boost/property_tree/ptree.hpp>
+#include <boost/property_tree/detail/xml_parser_utils.hpp>
+#include <string>
+#include <ostream>
+#include <iomanip>
+
+namespace boost { namespace property_tree { namespace xml_parser
+{
+    template<class Ch>
+    void write_xml_indent(std::basic_ostream<Ch> &stream,
+          int indent,
+          const xml_writer_settings<Ch> & settings
+          )
+    {
+        stream << std::basic_string<Ch>(indent * settings.indent_count, settings.indent_char);
+    }
+
+    template<class Ch>
+    void write_xml_comment(std::basic_ostream<Ch> &stream,
+                           const std::basic_string<Ch> &s, 
+                           int indent,
+                           bool separate_line,
+                           const xml_writer_settings<Ch> & settings
+                           )
+    {
+        typedef typename std::basic_string<Ch> Str;
+        if (separate_line)
+            write_xml_indent(stream,indent,settings);
+        stream << Ch('<') << Ch('!') << Ch('-') << Ch('-');
+        stream << s;
+        stream << Ch('-') << Ch('-') << Ch('>');
+        if (separate_line)
+            stream << Ch('\n');
+    }
+    
+    template<class Ch>
+    void write_xml_text(std::basic_ostream<Ch> &stream,
+                        const std::basic_string<Ch> &s, 
+                        int indent, 
+                        bool separate_line,
+                        const xml_writer_settings<Ch> & settings
+                        )
+    {
+        if (separate_line)    
+            write_xml_indent(stream,indent,settings);
+        stream << encode_char_entities(s);
+        if (separate_line)
+            stream << Ch('\n');
+    }
+
+    template<class Ptree>
+    void write_xml_element(std::basic_ostream<typename Ptree::key_type::value_type> &stream, 
+                           const std::basic_string<typename Ptree::key_type::value_type> &key,
+                           const Ptree &pt, 
+                           int indent,
+                           const xml_writer_settings<typename Ptree::key_type::value_type> & settings)
+    {
+
+        typedef typename Ptree::key_type::value_type Ch;
+        typedef typename std::basic_string<Ch> Str;
+        typedef typename Ptree::const_iterator It;
+
+        bool want_pretty = settings.indent_count > 0;
+        // Find if elements present
+        bool has_elements = false;
+        bool has_attrs_only = pt.data().empty();
+        for (It it = pt.begin(), end = pt.end(); it != end; ++it)
+        {
+            if (it->first != xmlattr<Ch>() )
+            {
+                has_attrs_only = false;
+                if (it->first != xmltext<Ch>())
+                {
+                    has_elements = true;
+                    break;
+                }
+            }
+        }
+        
+        // Write element
+        if (pt.data().empty() && pt.empty())    // Empty key
+        {
+            if (indent >= 0)
+            {
+                write_xml_indent(stream,indent,settings);
+                stream << Ch('<') << key << 
+                          Ch('/') << Ch('>');
+                if (want_pretty)
+                    stream << Ch('\n');
+            }
+        }
+        else    // Nonempty key
+        {
+        
+            // Write opening tag, attributes and data
+            if (indent >= 0)
+            {
+            
+                // Write opening brace and key
+                write_xml_indent(stream,indent,settings);
+                stream << Ch('<') << key;
+
+                // Write attributes
+                if (optional<const Ptree &> attribs = pt.get_child_optional(xmlattr<Ch>()))
+                    for (It it = attribs.get().begin(); it != attribs.get().end(); ++it)
+                        stream << Ch(' ') << it->first << Ch('=') << 
+                                  Ch('"') << it->second.template get_value<std::basic_string<Ch> >() << Ch('"');
+
+                if ( has_attrs_only )
+                {
+                    // Write closing brace
+                    stream << Ch('/') << Ch('>');
+                    if (want_pretty)
+                        stream << Ch('\n');
+                }
+                else
+                {
+                    // Write closing brace
+                    stream << Ch('>');
+
+                    // Break line if needed and if we want pretty-printing
+                    if (has_elements && want_pretty)
+                        stream << Ch('\n');
+                }
+            }
+
+            // Write data text, if present
+            if (!pt.data().empty())
+                write_xml_text(stream,
+                    pt.template get_value<std::basic_string<Ch> >(),
+                    indent + 1, has_elements && want_pretty, settings);
+
+            // Write elements, comments and texts
+            for (It it = pt.begin(); it != pt.end(); ++it)
+            {
+                if (it->first == xmlattr<Ch>())
+                    continue;
+                else if (it->first == xmlcomment<Ch>())
+                    write_xml_comment(stream,
+                        it->second.template get_value<std::basic_string<Ch> >(),
+                        indent + 1, want_pretty, settings);
+                else if (it->first == xmltext<Ch>())
+                    write_xml_text(stream,
+                        it->second.template get_value<std::basic_string<Ch> >(),
+                        indent + 1, has_elements && want_pretty, settings);
+                else
+                    write_xml_element(stream, it->first, it->second,
+                        indent + 1, settings);
+            }
+            
+            // Write closing tag
+            if (indent >= 0 && !has_attrs_only)
+            {
+                if (has_elements)
+                    write_xml_indent(stream,indent,settings);
+                stream << Ch('<') << Ch('/') << key << Ch('>');
+                if (want_pretty)
+                    stream << Ch('\n');
+            }
+
+        }
+    }
+
+    template<class Ptree>
+    void write_xml_internal(std::basic_ostream<typename Ptree::key_type::value_type> &stream, 
+                            const Ptree &pt,
+                            const std::string &filename,
+                            const xml_writer_settings<typename Ptree::key_type::value_type> & settings)
+    {
+        typedef typename Ptree::key_type::value_type Ch;
+        typedef typename std::basic_string<Ch> Str;
+        stream  << detail::widen<Ch>("<?xml version=\"1.0\" encoding=\"")
+                << settings.encoding
+                << detail::widen<Ch>("\"?>\n");
+        write_xml_element(stream, Str(), pt, -1, settings);
+        if (!stream)
+            BOOST_PROPERTY_TREE_THROW(xml_parser_error("write error", filename, 0));
+    }
+
+} } }
+
+#endif

test/external/boost/property_tree/detail/xml_parser_writer_settings.hpp

@@ -0,0 +1,62 @@
+// ----------------------------------------------------------------------------
+// Copyright (C) 2002-2007 Marcin Kalicinski
+// Copyright (C) 2007 Alexey Baskakov
+//
+// 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_XML_PARSER_WRITER_SETTINGS_HPP_INCLUDED
+#define BOOST_PROPERTY_TREE_DETAIL_XML_PARSER_WRITER_SETTINGS_HPP_INCLUDED
+
+#include <string>
+#include <boost/property_tree/detail/ptree_utils.hpp>
+
+namespace boost { namespace property_tree { namespace xml_parser
+{
+    
+    // Naively convert narrow string to another character type
+    template<class Ch>
+    std::basic_string<Ch> widen(const char *text)
+    {
+        std::basic_string<Ch> result;
+        while (*text)
+        {
+            result += Ch(*text);
+            ++text;
+        }
+        return result;
+    }
+
+    //! Xml writer settings. The default settings lead to no pretty printing.
+    template<class Ch>
+    class xml_writer_settings
+    {
+    public:
+        xml_writer_settings(Ch inchar = Ch(' '),
+                typename std::basic_string<Ch>::size_type incount = 0,
+                const std::basic_string<Ch> &enc = widen<Ch>("utf-8"))
+            : indent_char(inchar)
+            , indent_count(incount)
+            , encoding(enc)
+        {
+        }
+
+        Ch indent_char;
+        typename std::basic_string<Ch>::size_type indent_count;
+        std::basic_string<Ch> encoding;
+    };
+
+    template <class Ch>
+    xml_writer_settings<Ch> xml_writer_make_settings(Ch indent_char = Ch(' '),
+        typename std::basic_string<Ch>::size_type indent_count = 0,
+        const std::basic_string<Ch> &encoding = widen<Ch>("utf-8"))
+    {
+        return xml_writer_settings<Ch>(indent_char, indent_count, encoding);
+    }
+
+} } }
+
+#endif