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+//  Boost string_algo library find.hpp header file  ---------------------------//
+
+//  Copyright Pavol Droba 2002-2003.
+//
+// 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_FIND_HPP
+#define BOOST_STRING_FIND_HPP
+
+#include <boost/algorithm/string/config.hpp>
+
+#include <boost/range/iterator_range.hpp>
+#include <boost/range/begin.hpp>
+#include <boost/range/end.hpp>
+#include <boost/range/iterator.hpp>
+#include <boost/range/as_literal.hpp>
+
+#include <boost/algorithm/string/finder.hpp>
+#include <boost/algorithm/string/compare.hpp>
+#include <boost/algorithm/string/constants.hpp>
+
+/*! \file
+    Defines a set of find algorithms. The algorithms are searching
+    for a substring of the input. The result is given as an \c iterator_range
+    delimiting the substring.
+*/
+
+namespace boost {
+    namespace algorithm {
+
+//  Generic find -----------------------------------------------//
+
+        //! Generic find algorithm
+        /*!
+            Search the input using the given finder.
+
+            \param Input A string which will be searched.
+            \param Finder Finder object used for searching.
+            \return 
+                An \c iterator_range delimiting the match. 
+                Returned iterator is either \c RangeT::iterator or 
+                \c RangeT::const_iterator, depending on the constness of 
+                the input parameter.
+        */
+        template<typename RangeT, typename FinderT>
+        inline iterator_range< 
+            BOOST_STRING_TYPENAME range_iterator<RangeT>::type>
+        find( 
+            RangeT& Input, 
+            const FinderT& Finder)
+        {
+            iterator_range<BOOST_STRING_TYPENAME range_iterator<RangeT>::type> lit_input(::boost::as_literal(Input));
+
+            return Finder(::boost::begin(lit_input),::boost::end(lit_input));
+        }
+
+//  find_first  -----------------------------------------------//
+
+        //! Find first algorithm
+        /*!
+            Search for the first occurrence of the substring in the input. 
+            
+            \param Input A string which will be searched.
+            \param Search A substring to be searched for.
+            \return 
+                An \c iterator_range delimiting the match. 
+                Returned iterator is either \c RangeT::iterator or 
+                \c RangeT::const_iterator, depending on the constness of 
+                the input parameter.
+
+              \note This function provides the strong exception-safety guarantee
+        */
+        template<typename Range1T, typename Range2T>
+        inline iterator_range< 
+            BOOST_STRING_TYPENAME range_iterator<Range1T>::type>
+        find_first( 
+            Range1T& Input, 
+            const Range2T& Search)
+        {
+            return ::boost::algorithm::find(Input, ::boost::algorithm::first_finder(Search));
+        }
+
+        //! Find first algorithm ( case insensitive )
+        /*!
+            Search for the first occurence of the substring in the input. 
+            Searching is case insensitive.
+            
+            \param Input A string which will be searched.
+            \param Search A substring to be searched for.
+            \param Loc A locale used for case insensitive comparison
+            \return 
+                An \c iterator_range delimiting the match. 
+                Returned iterator is either \c Range1T::iterator or 
+                \c Range1T::const_iterator, depending on the constness of 
+                the input parameter.
+
+            \note This function provides the strong exception-safety guarantee
+        */
+        template<typename Range1T, typename Range2T>
+        inline iterator_range< 
+            BOOST_STRING_TYPENAME range_iterator<Range1T>::type>
+        ifind_first( 
+            Range1T& Input, 
+            const Range2T& Search,
+            const std::locale& Loc=std::locale())
+        {
+            return ::boost::algorithm::find(Input, ::boost::algorithm::first_finder(Search,is_iequal(Loc)));
+        }
+
+//  find_last  -----------------------------------------------//
+
+        //! Find last algorithm
+        /*!
+            Search for the last occurrence of the substring in the input. 
+            
+            \param Input A string which will be searched.
+            \param Search A substring to be searched for.
+            \return 
+                An \c iterator_range delimiting the match. 
+                Returned iterator is either \c Range1T::iterator or 
+                \c Range1T::const_iterator, depending on the constness of 
+                the input parameter.
+
+            \note This function provides the strong exception-safety guarantee
+        */
+        template<typename Range1T, typename Range2T>
+        inline iterator_range< 
+            BOOST_STRING_TYPENAME range_iterator<Range1T>::type>
+        find_last( 
+            Range1T& Input, 
+            const Range2T& Search)
+        {
+            return ::boost::algorithm::find(Input, ::boost::algorithm::last_finder(Search));
+        }
+
+        //! Find last algorithm ( case insensitive )
+        /*!
+            Search for the last match a string in the input. 
+            Searching is case insensitive.
+            
+            \param Input A string which will be searched.
+            \param Search A substring to be searched for.
+            \param Loc A locale used for case insensitive comparison
+            \return 
+                An \c iterator_range delimiting the match. 
+                Returned iterator is either \c Range1T::iterator or 
+                \c Range1T::const_iterator, depending on the constness of 
+                the input parameter.
+        
+            \note This function provides the strong exception-safety guarantee    
+        */
+        template<typename Range1T, typename Range2T>
+        inline iterator_range< 
+            BOOST_STRING_TYPENAME range_iterator<Range1T>::type>
+        ifind_last( 
+            Range1T& Input, 
+            const Range2T& Search,
+            const std::locale& Loc=std::locale())
+        {
+            return ::boost::algorithm::find(Input, ::boost::algorithm::last_finder(Search, is_iequal(Loc)));
+        }
+
+//  find_nth ----------------------------------------------------------------------//
+
+        //! Find n-th algorithm 
+        /*!
+            Search for the n-th (zero-indexed) occurrence of the substring in the 
+            input.         
+            
+            \param Input A string which will be searched.
+            \param Search A substring to be searched for.
+            \param Nth An index (zero-indexed) of the match to be found.
+                For negative N, the matches are counted from the end of string.
+            \return 
+                An \c iterator_range delimiting the match. 
+                Returned iterator is either \c Range1T::iterator or 
+                \c Range1T::const_iterator, depending on the constness of 
+                the input parameter.
+        */
+        template<typename Range1T, typename Range2T>
+        inline iterator_range< 
+            BOOST_STRING_TYPENAME range_iterator<Range1T>::type>
+        find_nth( 
+            Range1T& Input, 
+            const Range2T& Search,
+            int Nth)
+        {
+            return ::boost::algorithm::find(Input, ::boost::algorithm::nth_finder(Search,Nth));
+        }
+
+        //! Find n-th algorithm ( case insensitive ).
+        /*!
+            Search for the n-th (zero-indexed) occurrence of the substring in the 
+            input. Searching is case insensitive.
+            
+            \param Input A string which will be searched.
+            \param Search A substring to be searched for.
+            \param Nth An index (zero-indexed) of the match to be found. 
+                For negative N, the matches are counted from the end of string.
+            \param Loc A locale used for case insensitive comparison
+            \return 
+                An \c iterator_range delimiting the match. 
+                Returned iterator is either \c Range1T::iterator or 
+                \c Range1T::const_iterator, depending on the constness of 
+                the input parameter.
+
+
+            \note This function provides the strong exception-safety guarantee
+        */
+        template<typename Range1T, typename Range2T>
+        inline iterator_range< 
+            BOOST_STRING_TYPENAME range_iterator<Range1T>::type>
+        ifind_nth( 
+            Range1T& Input, 
+            const Range2T& Search,
+            int Nth,
+            const std::locale& Loc=std::locale())
+        {
+            return ::boost::algorithm::find(Input, ::boost::algorithm::nth_finder(Search,Nth,is_iequal(Loc)));
+        }
+
+//  find_head ----------------------------------------------------------------------//
+
+        //! Find head algorithm
+        /*!
+            Get the head of the input. Head is a prefix of the string of the 
+            given size. If the input is shorter then required, whole input if considered 
+            to be the head.
+
+            \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.
+            \return 
+                An \c iterator_range delimiting the match. 
+                Returned iterator is either \c Range1T::iterator or 
+                \c Range1T::const_iterator, depending on the constness of 
+                the input parameter.
+
+            \note This function provides the strong exception-safety guarantee
+        */
+        template<typename RangeT>
+        inline iterator_range< 
+            BOOST_STRING_TYPENAME range_iterator<RangeT>::type>
+        find_head( 
+            RangeT& Input, 
+            int N)
+        {
+            return ::boost::algorithm::find(Input, ::boost::algorithm::head_finder(N));
+        }
+
+//  find_tail ----------------------------------------------------------------------//
+
+        //! Find tail algorithm
+        /*!
+            Get the tail of the input. Tail is a suffix of the string of the 
+            given size. If the input is shorter then required, whole input if considered 
+            to be the tail.
+
+            \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.
+            \return 
+                An \c iterator_range delimiting the match. 
+                Returned iterator is either \c RangeT::iterator or 
+                \c RangeT::const_iterator, depending on the constness of 
+                the input parameter.
+
+
+            \note This function provides the strong exception-safety guarantee
+        */
+        template<typename RangeT>
+        inline iterator_range< 
+            BOOST_STRING_TYPENAME range_iterator<RangeT>::type>
+        find_tail( 
+            RangeT& Input, 
+            int N)
+        {
+            return ::boost::algorithm::find(Input, ::boost::algorithm::tail_finder(N));
+        }
+
+//  find_token --------------------------------------------------------------------//
+
+        //! Find token algorithm
+        /*!
+            Look for a given token in the string. Token is a character that matches the
+            given predicate.
+            If the "token compress mode" is enabled, adjacent tokens are considered to be one match.
+            
+            \param Input A input string.
+            \param Pred An unary predicate to identify a token
+            \param eCompress Enable/Disable compressing of adjacent tokens
+            \return 
+                An \c iterator_range delimiting the match. 
+                Returned iterator is either \c RangeT::iterator or 
+                \c RangeT::const_iterator, depending on the constness of 
+                the input parameter.
+        
+            \note This function provides the strong exception-safety guarantee    
+        */
+        template<typename RangeT, typename PredicateT>
+        inline iterator_range< 
+            BOOST_STRING_TYPENAME range_iterator<RangeT>::type>
+        find_token( 
+            RangeT& Input,
+            PredicateT Pred,
+            token_compress_mode_type eCompress=token_compress_off)
+        {
+            return ::boost::algorithm::find(Input, ::boost::algorithm::token_finder(Pred, eCompress));
+        }
+
+    } // namespace algorithm
+
+    // pull names to the boost namespace
+    using algorithm::find;
+    using algorithm::find_first;
+    using algorithm::ifind_first;
+    using algorithm::find_last;
+    using algorithm::ifind_last;
+    using algorithm::find_nth;
+    using algorithm::ifind_nth;
+    using algorithm::find_head;
+    using algorithm::find_tail;
+    using algorithm::find_token;
+
+} // namespace boost
+
+
+#endif  // BOOST_STRING_FIND_HPP