diff --git a/ndnboost/algorithm/string/replace.hpp b/ndnboost/algorithm/string/replace.hpp
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+++ b/ndnboost/algorithm/string/replace.hpp
@@ -0,0 +1,928 @@
+//  Boost string_algo library replace.hpp header file  ---------------------------//
+
+//  Copyright Pavol Droba 2002-2006.
+//
+// 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)
+
+//  See http://www.boost.org/ for updates, documentation, and revision history.
+
+#ifndef BOOST_STRING_REPLACE_HPP
+#define BOOST_STRING_REPLACE_HPP
+
+#include <ndnboost/algorithm/string/config.hpp>
+
+#include <ndnboost/range/iterator_range.hpp>
+#include <ndnboost/range/begin.hpp>
+#include <ndnboost/range/end.hpp>
+#include <ndnboost/range/iterator.hpp>
+#include <ndnboost/range/const_iterator.hpp>
+
+#include <ndnboost/algorithm/string/find_format.hpp>
+#include <ndnboost/algorithm/string/finder.hpp>
+#include <ndnboost/algorithm/string/formatter.hpp>
+#include <ndnboost/algorithm/string/compare.hpp>
+
+/*! \file
+    Defines various replace algorithms. Each algorithm replaces
+    part(s) of the input according to set of searching and replace criteria.
+*/
+
+namespace ndnboost {
+    namespace algorithm {
+
+//  replace_range --------------------------------------------------------------------//
+
+        //! Replace range algorithm
+        /*!
+            Replace the given range in the input string.
+            The result is a modified copy of the input. It is returned as a sequence 
+            or copied to the output iterator.
+            
+            \param Output An output iterator to which the result will be copied
+            \param Input An input string
+            \param SearchRange A range in the input to be substituted
+            \param Format A substitute string
+            \return An output iterator pointing just after the last inserted character or
+                a modified copy of the input
+
+              \note The second variant of this function provides the strong exception-safety guarantee
+        */
+        template<
+            typename OutputIteratorT,
+            typename Range1T, 
+            typename Range2T>
+        inline OutputIteratorT replace_range_copy(
+            OutputIteratorT Output,
+            const Range1T& Input,
+            const iterator_range<
+                BOOST_STRING_TYPENAME 
+                    range_const_iterator<Range1T>::type>& SearchRange,
+            const Range2T& Format)
+        {
+            return ::ndnboost::algorithm::find_format_copy(
+                Output,
+                Input,
+                ::ndnboost::algorithm::range_finder(SearchRange),
+                ::ndnboost::algorithm::const_formatter(Format));
+        }
+
+        //! Replace range algorithm
+        /*!
+            \overload
+        */
+        template<typename SequenceT, typename RangeT>
+        inline SequenceT replace_range_copy( 
+            const SequenceT& Input,
+            const iterator_range<
+                BOOST_STRING_TYPENAME 
+                    range_const_iterator<SequenceT>::type>& SearchRange,
+            const RangeT& Format)
+        {
+            return ::ndnboost::algorithm::find_format_copy(
+                Input,
+                ::ndnboost::algorithm::range_finder(SearchRange),
+                ::ndnboost::algorithm::const_formatter(Format));
+        }
+
+        //! Replace range algorithm
+        /*!
+            Replace the given range in the input string. 
+            The input sequence is modified in-place.
+
+            \param Input An input string
+            \param SearchRange A range in the input to be substituted
+            \param Format A substitute string
+        */
+        template<typename SequenceT, typename RangeT>
+        inline void replace_range( 
+            SequenceT& Input,
+            const iterator_range<
+                BOOST_STRING_TYPENAME 
+                    range_iterator<SequenceT>::type>& SearchRange,
+            const RangeT& Format)
+        {
+            ::ndnboost::algorithm::find_format(
+                Input,
+                ::ndnboost::algorithm::range_finder(SearchRange),
+                ::ndnboost::algorithm::const_formatter(Format));
+        }
+
+//  replace_first --------------------------------------------------------------------//
+
+        //! Replace first algorithm
+        /*!
+            Replace the first match of the search substring in the input 
+            with the format string. 
+            The result is a modified copy of the input. It is returned as a sequence 
+            or copied to the output iterator.
+            
+            \param Output An output iterator to which the result will be copied
+            \param Input An input string
+            \param Search A substring to be searched for 
+            \param Format A substitute string
+            \return An output iterator pointing just after the last inserted character or
+                    a modified copy of the input
+
+              \note The second variant of this function provides the strong exception-safety guarantee
+        */
+        template<
+            typename OutputIteratorT,
+            typename Range1T, 
+            typename Range2T,
+            typename Range3T>
+        inline OutputIteratorT replace_first_copy(
+            OutputIteratorT Output,
+            const Range1T& Input,
+            const Range2T& Search,
+            const Range3T& Format)
+        {
+            return ::ndnboost::algorithm::find_format_copy(
+                Output,
+                Input,
+                ::ndnboost::algorithm::first_finder(Search),
+                ::ndnboost::algorithm::const_formatter(Format) );
+        }
+
+        //! Replace first algorithm
+        /*!
+            \overload
+        */
+        template<typename SequenceT, typename Range1T, typename Range2T>
+        inline SequenceT replace_first_copy( 
+            const SequenceT& Input,
+            const Range1T& Search,
+            const Range2T& Format )
+        {
+            return ::ndnboost::algorithm::find_format_copy( 
+                Input,
+                ::ndnboost::algorithm::first_finder(Search),
+                ::ndnboost::algorithm::const_formatter(Format) );
+        }
+
+        //! Replace first algorithm
+        /*!
+            replace the first match of the search substring in the input 
+            with the format string. The input sequence is modified in-place.
+
+            \param Input An input string
+            \param Search A substring to be searched for 
+            \param Format A substitute string
+        */
+        template<typename SequenceT, typename Range1T, typename Range2T>
+        inline void replace_first( 
+            SequenceT& Input,
+            const Range1T& Search,
+            const Range2T& Format )
+        {
+            ::ndnboost::algorithm::find_format( 
+                Input, 
+                ::ndnboost::algorithm::first_finder(Search),
+                ::ndnboost::algorithm::const_formatter(Format) );
+        }
+
+//  replace_first ( case insensitive ) ---------------------------------------------//
+
+        //! Replace first algorithm ( case insensitive )
+        /*!
+            Replace the first match of the search substring in the input 
+            with the format string. 
+            The result is a modified copy of the input. It is returned as a sequence 
+            or copied to the output iterator.
+            Searching is case insensitive.
+
+            \param Output An output iterator to which the result will be copied
+            \param Input An input string
+            \param Search A substring to be searched for 
+            \param Format A substitute string
+            \param Loc A locale used for case insensitive comparison
+            \return An output iterator pointing just after the last inserted character or
+                a modified copy of the input
+
+             \note The second variant of this function provides the strong exception-safety guarantee
+        */
+        template<
+            typename OutputIteratorT,
+            typename Range1T, 
+            typename Range2T,
+            typename Range3T>
+        inline OutputIteratorT ireplace_first_copy(
+            OutputIteratorT Output,
+            const Range1T& Input,
+            const Range2T& Search,
+            const Range3T& Format,
+            const std::locale& Loc=std::locale() )
+        {
+            return ::ndnboost::algorithm::find_format_copy(
+                Output,
+                Input,
+                ::ndnboost::algorithm::first_finder(Search, is_iequal(Loc)),
+                ::ndnboost::algorithm::const_formatter(Format) );
+        }
+
+        //! Replace first algorithm ( case insensitive )
+        /*!
+            \overload
+        */
+        template<typename SequenceT, typename Range2T, typename Range1T>
+        inline SequenceT ireplace_first_copy( 
+            const SequenceT& Input,
+            const Range2T& Search,
+            const Range1T& Format,
+            const std::locale& Loc=std::locale() )
+        {
+            return ::ndnboost::algorithm::find_format_copy( 
+                Input,
+                ::ndnboost::algorithm::first_finder(Search, is_iequal(Loc)),
+                ::ndnboost::algorithm::const_formatter(Format) );
+        }
+
+        //! Replace first algorithm ( case insensitive )
+        /*!
+            Replace the first match of the search substring in the input 
+            with the format string. Input sequence is modified in-place.
+            Searching is case insensitive.
+
+            \param Input An input string
+            \param Search A substring to be searched for 
+            \param Format A substitute string
+            \param Loc A locale used for case insensitive comparison
+        */
+        template<typename SequenceT, typename Range1T, typename Range2T>
+        inline void ireplace_first( 
+            SequenceT& Input,
+            const Range1T& Search,
+            const Range2T& Format,
+            const std::locale& Loc=std::locale() )
+        {
+            ::ndnboost::algorithm::find_format( 
+                Input, 
+                ::ndnboost::algorithm::first_finder(Search, is_iequal(Loc)),
+                ::ndnboost::algorithm::const_formatter(Format) );
+        }
+
+//  replace_last --------------------------------------------------------------------//
+
+        //! Replace last algorithm
+        /*!
+            Replace the last match of the search string in the input 
+            with the format string. 
+            The result is a modified copy of the input. It is returned as a sequence 
+            or copied to the output iterator.
+
+            \param Output An output iterator to which the result will be copied
+            \param Input An input string
+            \param Search A substring to be searched for
+            \param Format A substitute string
+            \return An output iterator pointing just after the last inserted character or
+                    a modified copy of the input            
+
+              \note The second variant of this function provides the strong exception-safety guarantee
+        */
+        template<
+            typename OutputIteratorT,
+            typename Range1T, 
+            typename Range2T,
+            typename Range3T>
+        inline OutputIteratorT replace_last_copy(
+            OutputIteratorT Output,
+            const Range1T& Input,
+            const Range2T& Search,
+            const Range3T& Format )
+        {
+            return ::ndnboost::algorithm::find_format_copy(
+                Output,
+                Input,
+                ::ndnboost::algorithm::last_finder(Search),
+                ::ndnboost::algorithm::const_formatter(Format) );
+        }
+
+        //! Replace last algorithm
+        /*!
+            \overload
+        */
+        template<typename SequenceT, typename Range1T, typename Range2T>
+        inline SequenceT replace_last_copy( 
+            const SequenceT& Input,
+            const Range1T& Search,
+            const Range2T& Format )
+        {
+            return ::ndnboost::algorithm::find_format_copy( 
+                Input,
+                ::ndnboost::algorithm::last_finder(Search),
+                ::ndnboost::algorithm::const_formatter(Format) );
+        }
+
+        //! Replace last algorithm
+        /*!
+            Replace the last match of the search string in the input 
+            with the format string. Input sequence is modified in-place.
+
+            \param Input An input string
+            \param Search A substring to be searched for 
+            \param Format A substitute string
+        */
+        template<typename SequenceT, typename Range1T, typename Range2T>
+        inline void replace_last( 
+            SequenceT& Input,
+            const Range1T& Search,
+            const Range2T& Format )
+        {
+            ::ndnboost::algorithm::find_format( 
+                Input, 
+                ::ndnboost::algorithm::last_finder(Search),
+                ::ndnboost::algorithm::const_formatter(Format) );
+        }
+
+//  replace_last ( case insensitive ) -----------------------------------------------//
+
+        //! Replace last algorithm ( case insensitive )
+        /*!
+            Replace the last match of the search string in the input 
+            with the format string. 
+            The result is a modified copy of the input. It is returned as a sequence 
+            or copied to the output iterator.
+            Searching is case insensitive.
+
+            \param Output An output iterator to which the result will be copied
+            \param Input An input string
+            \param Search A substring to be searched for 
+            \param Format A substitute string
+            \param Loc A locale used for case insensitive comparison
+            \return An output iterator pointing just after the last inserted character or
+                    a modified copy of the input  
+
+            \note The second variant of this function provides the strong exception-safety guarantee
+        */
+        template<
+            typename OutputIteratorT,
+            typename Range1T, 
+            typename Range2T,
+            typename Range3T>
+        inline OutputIteratorT ireplace_last_copy(
+            OutputIteratorT Output,
+            const Range1T& Input,
+            const Range2T& Search,
+            const Range3T& Format,
+            const std::locale& Loc=std::locale() )
+        {
+            return ::ndnboost::algorithm::find_format_copy(
+                Output,
+                Input,
+                ::ndnboost::algorithm::last_finder(Search, is_iequal(Loc)),
+                ::ndnboost::algorithm::const_formatter(Format) );
+        }
+
+        //! Replace last algorithm ( case insensitive )
+        /*!
+            \overload
+        */
+        template<typename SequenceT, typename Range1T, typename Range2T>
+        inline SequenceT ireplace_last_copy( 
+            const SequenceT& Input,
+            const Range1T& Search,
+            const Range2T& Format,
+            const std::locale& Loc=std::locale() )
+        {
+            return ::ndnboost::algorithm::find_format_copy( 
+                Input,
+                ::ndnboost::algorithm::last_finder(Search, is_iequal(Loc)),
+                ::ndnboost::algorithm::const_formatter(Format) );
+        }
+
+        //! Replace last algorithm ( case insensitive )
+        /*!
+            Replace the last match of the search string in the input 
+            with the format string.The input sequence is modified in-place.
+            Searching is case insensitive.
+
+            \param Input An input string
+            \param Search A substring to be searched for 
+            \param Format A substitute string
+            \param Loc A locale used for case insensitive comparison
+            \return A reference to the modified input
+        */
+        template<typename SequenceT, typename Range1T, typename Range2T>
+        inline void ireplace_last( 
+            SequenceT& Input,
+            const Range1T& Search,
+            const Range2T& Format,
+            const std::locale& Loc=std::locale() )
+        {
+            ::ndnboost::algorithm::find_format( 
+                Input, 
+                ::ndnboost::algorithm::last_finder(Search, is_iequal(Loc)),
+                ::ndnboost::algorithm::const_formatter(Format) );
+        }
+
+//  replace_nth --------------------------------------------------------------------//
+
+        //! Replace nth algorithm
+        /*!
+            Replace an Nth (zero-indexed) match of the search string in the input 
+            with the format string. 
+            The result is a modified copy of the input. It is returned as a sequence 
+            or copied to the output iterator.
+
+            \param Output An output iterator to which the result will be copied
+            \param Input An input string
+            \param Search A substring to be searched for 
+            \param Nth An index of the match to be replaced. The index is 0-based.
+                For negative N, matches are counted from the end of string.
+            \param Format A substitute string
+            \return An output iterator pointing just after the last inserted character or
+                a modified copy of the input
+
+            \note The second variant of this function provides the strong exception-safety guarantee
+        */
+        template<
+            typename OutputIteratorT,
+            typename Range1T, 
+            typename Range2T,
+            typename Range3T>
+        inline OutputIteratorT replace_nth_copy(
+            OutputIteratorT Output,
+            const Range1T& Input,
+            const Range2T& Search,
+            int Nth,
+            const Range3T& Format )
+        {
+            return ::ndnboost::algorithm::find_format_copy(
+                Output,
+                Input,
+                ::ndnboost::algorithm::nth_finder(Search, Nth),
+                ::ndnboost::algorithm::const_formatter(Format) );
+        }
+
+        //! Replace nth algorithm
+        /*!
+            \overload
+        */
+        template<typename SequenceT, typename Range1T, typename Range2T>
+        inline SequenceT replace_nth_copy( 
+            const SequenceT& Input,
+            const Range1T& Search,
+            int Nth,
+            const Range2T& Format )
+        {
+            return ::ndnboost::algorithm::find_format_copy( 
+                Input,
+                ::ndnboost::algorithm::nth_finder(Search, Nth),
+                ::ndnboost::algorithm::const_formatter(Format) );
+        }
+
+        //! Replace nth algorithm
+        /*!
+            Replace an Nth (zero-indexed) match of the search string in the input 
+            with the format string. Input sequence is modified in-place.
+
+            \param Input An input string
+            \param Search A substring to be searched for 
+            \param Nth An index of the match to be replaced. The index is 0-based.
+                For negative N, matches are counted from the end of string.
+            \param Format A substitute string
+        */
+        template<typename SequenceT, typename Range1T, typename Range2T>
+        inline void replace_nth( 
+            SequenceT& Input,
+            const Range1T& Search,
+            int Nth,
+            const Range2T& Format )
+        {
+            ::ndnboost::algorithm::find_format( 
+                Input, 
+                ::ndnboost::algorithm::nth_finder(Search, Nth),
+                ::ndnboost::algorithm::const_formatter(Format) );
+        }
+
+//  replace_nth ( case insensitive ) -----------------------------------------------//
+        
+        //! Replace nth algorithm ( case insensitive )
+        /*!
+            Replace an Nth (zero-indexed) match of the search string in the input 
+            with the format string. 
+            The result is a modified copy of the input. It is returned as a sequence 
+            or copied to the output iterator.
+            Searching is case insensitive.
+
+            \param Output An output iterator to which the result will be copied
+            \param Input An input string
+            \param Search A substring to be searched for 
+            \param Nth An index of the match to be replaced. The index is 0-based.
+                For negative N, matches are counted from the end of string.
+            \param Format A substitute string
+            \param Loc A locale used for case insensitive comparison
+            \return An output iterator pointing just after the last inserted character or
+                    a modified copy of the input            
+
+            \note The second variant of this function provides the strong exception-safety guarantee
+       */
+        template<
+            typename OutputIteratorT,
+            typename Range1T, 
+            typename Range2T,
+            typename Range3T>
+        inline OutputIteratorT ireplace_nth_copy(
+            OutputIteratorT Output,
+            const Range1T& Input,
+            const Range2T& Search,
+            int Nth,
+            const Range3T& Format,
+            const std::locale& Loc=std::locale() )
+        {
+            return ::ndnboost::algorithm::find_format_copy(
+                Output,
+                Input,
+                ::ndnboost::algorithm::nth_finder(Search, Nth, is_iequal(Loc) ),
+                ::ndnboost::algorithm::const_formatter(Format) );
+        }
+
+        //! Replace nth algorithm ( case insensitive )
+        /*!
+            \overload
+        */
+        template<typename SequenceT, typename Range1T, typename Range2T>
+        inline SequenceT ireplace_nth_copy( 
+            const SequenceT& Input,
+            const Range1T& Search,
+            int Nth,
+            const Range2T& Format,
+            const std::locale& Loc=std::locale() )
+        {
+            return ::ndnboost::algorithm::find_format_copy( 
+                Input,
+                ::ndnboost::algorithm::nth_finder(Search, Nth, is_iequal(Loc)),
+                ::ndnboost::algorithm::const_formatter(Format) );
+        }
+
+        //! Replace nth algorithm ( case insensitive )
+        /*!
+            Replace an Nth (zero-indexed) match of the search string in the input 
+            with the format string. Input sequence is modified in-place.
+            Searching is case insensitive.
+
+            \param Input An input string
+            \param Search A substring to be searched for 
+            \param Nth An index of the match to be replaced. The index is 0-based.
+                For negative N, matches are counted from the end of string.
+            \param Format A substitute string
+            \param Loc A locale used for case insensitive comparison
+        */
+        template<typename SequenceT, typename Range1T, typename Range2T>
+        inline void ireplace_nth( 
+            SequenceT& Input,
+            const Range1T& Search,
+            int Nth,
+            const Range2T& Format,
+            const std::locale& Loc=std::locale() )
+        {
+            ::ndnboost::algorithm::find_format( 
+                Input, 
+                ::ndnboost::algorithm::nth_finder(Search, Nth, is_iequal(Loc)),
+                ::ndnboost::algorithm::const_formatter(Format) );
+        }
+
+//  replace_all --------------------------------------------------------------------//
+
+        //! Replace all algorithm
+        /*!
+            Replace all occurrences of the search string in the input 
+            with the format string. 
+            The result is a modified copy of the input. It is returned as a sequence 
+            or copied to the output iterator.
+
+            \param Output An output iterator to which the result will be copied
+            \param Input An input string
+            \param Search A substring to be searched for 
+            \param Format A substitute string
+            \return An output iterator pointing just after the last inserted character or
+                    a modified copy of the input 
+
+             \note The second variant of this function provides the strong exception-safety guarantee
+        */
+        template<
+            typename OutputIteratorT,
+            typename Range1T, 
+            typename Range2T,
+            typename Range3T>
+        inline OutputIteratorT replace_all_copy(
+            OutputIteratorT Output,
+            const Range1T& Input,
+            const Range2T& Search,
+            const Range3T& Format )
+        {
+            return ::ndnboost::algorithm::find_format_all_copy(
+                Output,
+                Input,
+                ::ndnboost::algorithm::first_finder(Search),
+                ::ndnboost::algorithm::const_formatter(Format) );
+        }
+
+        //! Replace all algorithm
+        /*!
+            \overload
+        */
+        template<typename SequenceT, typename Range1T, typename Range2T>
+        inline SequenceT replace_all_copy( 
+            const SequenceT& Input,
+            const Range1T& Search,
+            const Range2T& Format )
+        {
+            return ::ndnboost::algorithm::find_format_all_copy( 
+                Input,
+                ::ndnboost::algorithm::first_finder(Search),
+                ::ndnboost::algorithm::const_formatter(Format) );
+        }
+
+        //! Replace all algorithm
+        /*!
+            Replace all occurrences of the search string in the input 
+            with the format string. The input sequence is modified in-place.
+
+            \param Input An input string
+            \param Search A substring to be searched for 
+            \param Format A substitute string
+            \return A reference to the modified input
+        */
+        template<typename SequenceT, typename Range1T, typename Range2T>
+        inline void replace_all( 
+            SequenceT& Input,
+            const Range1T& Search,
+            const Range2T& Format )
+        {
+            ::ndnboost::algorithm::find_format_all( 
+                Input, 
+                ::ndnboost::algorithm::first_finder(Search),
+                ::ndnboost::algorithm::const_formatter(Format) );
+        }
+        
+//  replace_all ( case insensitive ) -----------------------------------------------//
+
+        //! Replace all algorithm ( case insensitive )
+        /*!
+            Replace all occurrences of the search string in the input 
+            with the format string. 
+            The result is a modified copy of the input. It is returned as a sequence 
+            or copied to the output iterator.
+            Searching is case insensitive.
+
+            \param Output An output iterator to which the result will be copied
+            \param Input An input string
+            \param Search A substring to be searched for 
+            \param Format A substitute string
+            \param Loc A locale used for case insensitive comparison
+            \return An output iterator pointing just after the last inserted character or
+                    a modified copy of the input 
+
+            \note The second variant of this function provides the strong exception-safety guarantee
+        */
+        template<
+            typename OutputIteratorT,
+            typename Range1T, 
+            typename Range2T,
+            typename Range3T>
+        inline OutputIteratorT ireplace_all_copy(
+            OutputIteratorT Output,
+            const Range1T& Input,
+            const Range2T& Search,
+            const Range3T& Format,
+            const std::locale& Loc=std::locale() )
+        {
+            return ::ndnboost::algorithm::find_format_all_copy(
+                Output,
+                Input,
+                ::ndnboost::algorithm::first_finder(Search, is_iequal(Loc)),
+                ::ndnboost::algorithm::const_formatter(Format) );
+        }
+
+        //! Replace all algorithm ( case insensitive )
+        /*!
+            \overload
+        */
+        template<typename SequenceT, typename Range1T, typename Range2T>
+        inline SequenceT ireplace_all_copy( 
+            const SequenceT& Input,
+            const Range1T& Search,
+            const Range2T& Format,
+            const std::locale& Loc=std::locale() )
+        {
+            return ::ndnboost::algorithm::find_format_all_copy( 
+                Input,
+                ::ndnboost::algorithm::first_finder(Search, is_iequal(Loc)),
+                ::ndnboost::algorithm::const_formatter(Format) );
+        }
+
+        //! Replace all algorithm ( case insensitive )
+        /*!
+            Replace all occurrences of the search string in the input 
+            with the format string.The input sequence is modified in-place.
+            Searching is case insensitive.
+
+            \param Input An input string
+            \param Search A substring to be searched for 
+            \param Format A substitute string
+            \param Loc A locale used for case insensitive comparison
+        */
+        template<typename SequenceT, typename Range1T, typename Range2T>
+        inline void ireplace_all( 
+            SequenceT& Input,
+            const Range1T& Search,
+            const Range2T& Format,
+            const std::locale& Loc=std::locale() )
+        {
+            ::ndnboost::algorithm::find_format_all( 
+                Input, 
+                ::ndnboost::algorithm::first_finder(Search, is_iequal(Loc)),
+                ::ndnboost::algorithm::const_formatter(Format) );
+        }
+        
+//  replace_head --------------------------------------------------------------------//
+
+        //! Replace head algorithm
+        /*!
+            Replace the head of the input with the given format string. 
+            The head is a prefix of a string of given size. 
+            If the sequence is shorter then required, whole string if 
+            considered to be the head. 
+            The result is a modified copy of the input. It is returned as a sequence 
+            or copied to the output iterator.
+            
+            \param Output An output iterator to which the result will be copied
+            \param Input An input string
+            \param N Length of the head.
+                For N>=0, at most N characters are extracted.
+                For N<0, size(Input)-|N| characters are extracted.
+            \param Format A substitute string
+            \return An output iterator pointing just after the last inserted character or
+                a modified copy of the input  
+
+            \note The second variant of this function provides the strong exception-safety guarantee
+        */
+        template<
+            typename OutputIteratorT,
+            typename Range1T, 
+            typename Range2T>
+        inline OutputIteratorT replace_head_copy(
+            OutputIteratorT Output,
+            const Range1T& Input,
+            int N,
+            const Range2T& Format )
+        {
+            return ::ndnboost::algorithm::find_format_copy(
+                Output,
+                Input,
+                ::ndnboost::algorithm::head_finder(N),
+                ::ndnboost::algorithm::const_formatter(Format) );
+        }
+
+        //! Replace head algorithm
+        /*!
+            \overload
+        */
+        template<typename SequenceT, typename RangeT>
+        inline SequenceT replace_head_copy( 
+            const SequenceT& Input,
+            int N,
+            const RangeT& Format )
+        {
+            return ::ndnboost::algorithm::find_format_copy( 
+                Input,
+                ::ndnboost::algorithm::head_finder(N),
+                ::ndnboost::algorithm::const_formatter(Format) );
+        }
+
+        //! Replace head algorithm
+        /*!
+            Replace the head of the input with the given format string. 
+            The head is a prefix of a string of given size. 
+            If the sequence is shorter then required, the whole string is 
+            considered to be the head. The input sequence is modified in-place.
+
+            \param Input An input string
+            \param N Length of the head.
+                For N>=0, at most N characters are extracted.
+                For N<0, size(Input)-|N| characters are extracted.
+            \param Format A substitute string
+        */
+        template<typename SequenceT, typename RangeT>
+        inline void replace_head( 
+            SequenceT& Input,
+            int N,
+            const RangeT& Format )
+        {
+            ::ndnboost::algorithm::find_format( 
+                Input, 
+                ::ndnboost::algorithm::head_finder(N),
+                ::ndnboost::algorithm::const_formatter(Format) );
+        }
+
+//  replace_tail --------------------------------------------------------------------//
+
+        //! Replace tail algorithm
+        /*!
+            Replace the tail of the input with the given format string. 
+            The tail is a suffix of a string of given size. 
+            If the sequence is shorter then required, whole string is 
+            considered to be the tail. 
+            The result is a modified copy of the input. It is returned as a sequence 
+            or copied to the output iterator.
+
+            \param Output An output iterator to which the result will be copied
+            \param Input An input string
+            \param N Length of the tail.
+                For N>=0, at most N characters are extracted.
+                For N<0, size(Input)-|N| characters are extracted.
+            \param Format A substitute string
+            \return An output iterator pointing just after the last inserted character or
+                    a modified copy of the input   
+
+              \note The second variant of this function provides the strong exception-safety guarantee
+        */
+        template<
+            typename OutputIteratorT,
+            typename Range1T, 
+            typename Range2T>
+        inline OutputIteratorT replace_tail_copy(
+            OutputIteratorT Output,
+            const Range1T& Input,
+            int N,
+            const Range2T& Format )
+        {
+            return ::ndnboost::algorithm::find_format_copy(
+                Output,
+                Input,
+                ::ndnboost::algorithm::tail_finder(N),
+                ::ndnboost::algorithm::const_formatter(Format) );
+        }
+
+        //! Replace tail algorithm
+        /*!
+            \overload
+        */
+        template<typename SequenceT, typename RangeT>
+        inline SequenceT replace_tail_copy( 
+            const SequenceT& Input,
+            int N,
+            const RangeT& Format )
+        {
+            return ::ndnboost::algorithm::find_format_copy( 
+                Input,
+                ::ndnboost::algorithm::tail_finder(N),
+                ::ndnboost::algorithm::const_formatter(Format) );
+        }
+
+        //! Replace tail algorithm
+        /*!
+            Replace the tail of the input with the given format sequence. 
+            The tail is a suffix of a string of given size. 
+            If the sequence is shorter then required, the whole string is 
+            considered to be the tail. The input sequence is modified in-place.
+
+            \param Input An input string
+            \param N Length of the tail.
+                For N>=0, at most N characters are extracted.
+                For N<0, size(Input)-|N| characters are extracted.
+            \param Format A substitute string
+        */
+        template<typename SequenceT, typename RangeT>
+        inline void replace_tail( 
+            SequenceT& Input,
+            int N,
+            const RangeT& Format )
+        {
+            ::ndnboost::algorithm::find_format( 
+                Input, 
+                ::ndnboost::algorithm::tail_finder(N),
+                ::ndnboost::algorithm::const_formatter(Format) );
+        }
+
+    } // namespace algorithm
+
+    // pull names to the boost namespace
+    using algorithm::replace_range_copy;
+    using algorithm::replace_range;
+    using algorithm::replace_first_copy;
+    using algorithm::replace_first;
+    using algorithm::ireplace_first_copy;
+    using algorithm::ireplace_first;
+    using algorithm::replace_last_copy;
+    using algorithm::replace_last;
+    using algorithm::ireplace_last_copy;
+    using algorithm::ireplace_last;
+    using algorithm::replace_nth_copy;
+    using algorithm::replace_nth;
+    using algorithm::ireplace_nth_copy;
+    using algorithm::ireplace_nth;
+    using algorithm::replace_all_copy;
+    using algorithm::replace_all;
+    using algorithm::ireplace_all_copy;
+    using algorithm::ireplace_all;
+    using algorithm::replace_head_copy;
+    using algorithm::replace_head;
+    using algorithm::replace_tail_copy;
+    using algorithm::replace_tail;
+
+} // namespace ndnboost
+
+#endif  // BOOST_REPLACE_HPP