Added boost header

test/external/boost/property_tree/info_parser.hpp

@@ -0,0 +1,151 @@
+// ----------------------------------------------------------------------------
+// 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_INFO_PARSER_HPP_INCLUDED
+#define BOOST_PROPERTY_TREE_INFO_PARSER_HPP_INCLUDED
+
+#include <boost/property_tree/ptree.hpp>
+#include <boost/property_tree/detail/info_parser_error.hpp>
+#include <boost/property_tree/detail/info_parser_writer_settings.hpp>
+#include <boost/property_tree/detail/info_parser_read.hpp>
+#include <boost/property_tree/detail/info_parser_write.hpp>
+#include <istream>
+
+namespace boost { namespace property_tree { namespace info_parser
+{
+
+    /**
+     * Read INFO from a the given stream and translate it to a property tree.
+     * @note Replaces the existing contents. Strong exception guarantee.
+     * @throw info_parser_error If the stream cannot be read, doesn't contain
+     *                          valid INFO, or a conversion fails.
+     */
+    template<class Ptree, class Ch>
+    void read_info(std::basic_istream<Ch> &stream, Ptree &pt)
+    {
+        Ptree local;
+        read_info_internal(stream, local, std::string(), 0);
+        pt.swap(local);
+    }
+
+    /**
+     * Read INFO from a the given stream and translate it to a property tree.
+     * @note Replaces the existing contents. Strong exception guarantee.
+     * @param default_ptree If parsing fails, pt is set to a copy of this tree.
+     */
+    template<class Ptree, class Ch>
+    void read_info(std::basic_istream<Ch> &stream, Ptree &pt,
+                   const Ptree &default_ptree)
+    {
+        try {
+            read_info(stream, pt);
+        } catch(file_parser_error &) {
+            pt = default_ptree;
+        }
+    }
+
+    /**
+     * Read INFO from a the given file and translate it to a property tree. The
+     * tree's key type must be a string type, i.e. it must have a nested
+     * value_type typedef that is a valid parameter for basic_ifstream.
+     * @note Replaces the existing contents. Strong exception guarantee.
+     * @throw info_parser_error If the file cannot be read, doesn't contain
+     *                          valid INFO, or a conversion fails.
+     */
+    template<class Ptree>
+    void read_info(const std::string &filename, Ptree &pt,
+                   const std::locale &loc = std::locale())
+    {
+        std::basic_ifstream<typename Ptree::key_type::value_type>
+            stream(filename.c_str());
+        if (!stream) {
+            BOOST_PROPERTY_TREE_THROW(info_parser_error(
+                "cannot open file for reading", filename, 0));
+        }
+        stream.imbue(loc);
+        Ptree local;
+        read_info_internal(stream, local, filename, 0);
+        pt.swap(local);
+    }
+
+    /**
+     * Read INFO from a the given file and translate it to a property tree. The
+     * tree's key type must be a string type, i.e. it must have a nested
+     * value_type typedef that is a valid parameter for basic_ifstream.
+     * @note Replaces the existing contents. Strong exception guarantee.
+     * @param default_ptree If parsing fails, pt is set to a copy of this tree.
+     */
+    template<class Ptree>
+    void read_info(const std::string &filename,
+                   Ptree &pt,
+                   const Ptree &default_ptree,
+                   const std::locale &loc = std::locale())
+    {
+        try {
+            read_info(filename, pt, loc);
+        } catch(file_parser_error &) {
+            pt = default_ptree;
+        }
+    }
+
+    /**
+     * Writes a tree to the stream in INFO format.
+     * @throw info_parser_error If the stream cannot be written to, or a
+     *                          conversion fails.
+     * @param settings The settings to use when writing the INFO data.
+     */
+    template<class Ptree, class Ch>
+    void write_info(std::basic_ostream<Ch> &stream,
+                    const Ptree &pt,
+                    const info_writer_settings<Ch> &settings =
+                        info_writer_settings<Ch>())
+    {
+        write_info_internal(stream, pt, std::string(), settings);
+    }
+
+    /**
+     * Writes a tree to the file in INFO format. The tree's key type must be a
+     * string type, i.e. it must have a nested value_type typedef that is a
+     * valid parameter for basic_ofstream.
+     * @throw info_parser_error If the file cannot be written to, or a
+     *                          conversion fails.
+     * @param settings The settings to use when writing the INFO data.
+     */
+    template<class Ptree>
+    void write_info(const std::string &filename,
+                    const Ptree &pt,
+                    const std::locale &loc = std::locale(),
+                    const info_writer_settings<
+                        typename Ptree::key_type::value_type
+                    > &settings =
+                        info_writer_make_settings<
+                            typename Ptree::key_type::value_type>())
+    {
+        std::basic_ofstream<typename Ptree::key_type::value_type>
+            stream(filename.c_str());
+        if (!stream) {
+            BOOST_PROPERTY_TREE_THROW(info_parser_error(
+                "cannot open file for writing", filename, 0));
+        }
+        stream.imbue(loc);
+        write_info_internal(stream, pt, filename, settings);
+    }
+
+} } }
+
+namespace boost { namespace property_tree
+{
+    using info_parser::info_parser_error;
+    using info_parser::read_info;
+    using info_parser::write_info;
+    using info_parser::info_writer_settings;
+    using info_parser::info_writer_make_settings;
+} }
+
+#endif