Release 1.48.0 beta 1

[SVN r75132]

include/boost/algorithm/string/detail/formatter.hpp

@@ -87,6 +87,31 @@ namespace boost {
                 }
             };
 
+//  dissect format functor ----------------------------------------------------//
+
+            // dissect format functor
+            template<typename FinderT>
+            struct dissect_formatF
+            {
+            public:
+                // Construction
+                dissect_formatF(FinderT Finder) :
+                  m_Finder(Finder) {}
+
+                  // Operation
+                  template<typename RangeT>
+                  inline iterator_range< 
+                      BOOST_STRING_TYPENAME range_const_iterator<RangeT>::type>
+                  operator()(const RangeT& Replace) const
+                  {
+                      return m_Finder(::boost::begin(Replace), ::boost::end(Replace));
+                  }
+
+            private:
+                FinderT m_Finder;
+            };
+
+
         } // namespace detail
     } // namespace algorithm
 } // namespace boost

include/boost/algorithm/string/formatter.hpp

@@ -36,7 +36,7 @@ namespace boost {
 
         //! Constant formatter
         /*!
-            Construct the \c const_formatter. Const formatter always returns
+            Constructs a \c const_formatter. Const formatter always returns
             the same value, regardless of the parameter.
 
             \param Format A predefined value used as a result for formating
@@ -55,7 +55,7 @@ namespace boost {
 
         //! Identity formatter
         /*!
-            Construct the \c identity_formatter. Identity formatter always returns
+            Constructs an \c identity_formatter. Identity formatter always returns
             the parameter.
 
             \return An instance of the \c identity_formatter object.
@@ -73,7 +73,7 @@ namespace boost {
 
         //! Empty formatter
         /*!
-            Construct the \c empty_formatter. Empty formatter always returns an empty
+            Constructs an \c empty_formatter. Empty formatter always returns an empty
             sequence. 
 
             \param Input container used to select a correct value_type for the
@@ -89,6 +89,22 @@ namespace boost {
                 BOOST_STRING_TYPENAME range_value<RangeT>::type>();
         }
 
+        //! Empty formatter
+        /*!
+            Constructs a \c dissect_formatter. Dissect formatter uses a specified finder
+            to extract a portion of the formatted sequence. The first finder's match is returned 
+            as a result
+
+            \param Finder a finder used to select a portion of the formated sequence
+            \return An instance of the \c dissect_formatter object.
+        */
+        template<typename FinderT>
+        inline detail::dissect_formatF< FinderT >
+        dissect_formatter(const FinderT& Finder)
+        {
+            return detail::dissect_formatF<FinderT>(Finder);
+        }
+
 
     } // namespace algorithm
 
@@ -96,6 +112,7 @@ namespace boost {
     using algorithm::const_formatter;
     using algorithm::identity_formatter;
     using algorithm::empty_formatter;
+    using algorithm::dissect_formatter;
 
 } // namespace boost
 

include/boost/algorithm/string/trim_all.hpp

@@ -0,0 +1,217 @@
+//  Boost string_algo library trim.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_TRIM_ALL_HPP
+#define BOOST_STRING_TRIM_ALL_HPP
+
+#include <boost/algorithm/string/config.hpp>
+
+#include <boost/algorithm/string/trim.hpp>
+#include <boost/algorithm/string/classification.hpp>
+#include <boost/algorithm/string/find_format.hpp>
+#include <boost/algorithm/string/formatter.hpp>
+#include <boost/algorithm/string/finder.hpp>
+#include <locale>
+
+/*! \file
+    Defines trim_all algorithms.
+    
+    Just like \c trim, \c trim_all removes all trailing and leading spaces from a 
+    sequence (string). In addition, spaces in the middle of the sequence are truncated
+    to just one character. Space is recognized using given locales.
+
+    \c trim_fill acts as trim_all, but the spaces in the middle are replaces with 
+    a user-define sequence of character.
+
+    Parametric (\c _if) variants use a predicate (functor) to select which characters
+    are to be trimmed.. 
+    Functions take a selection predicate as a parameter, which is used to determine 
+    whether a character is a space. Common predicates are provided in classification.hpp header.
+
+*/
+
+namespace boost {
+    namespace algorithm {
+
+        // multi line trim  ----------------------------------------------- //
+
+        //! Trim All - parametric
+        /*!
+            Remove all leading and trailing spaces from the input and
+            compress all other spaces to a single character.
+            The result is a trimmed copy of the input
+
+            \param Input An input sequence
+             \param IsSpace An unary predicate identifying spaces
+            \return A trimmed copy of the input
+        */
+        template<typename SequenceT, typename PredicateT>
+        inline SequenceT trim_all_copy_if(const SequenceT& Input, PredicateT IsSpace)
+        {
+            return 
+                ::boost::find_format_all_copy(      
+                    ::boost::trim_copy_if(Input, IsSpace),
+                    ::boost::token_finder(IsSpace, ::boost::token_compress_on),
+                    ::boost::dissect_formatter(::boost::head_finder(1)));
+        }
+
+
+        //! Trim All
+        /*!
+            Remove all leading and trailing spaces from the input and
+            compress all other spaces to a single character.
+            The input sequence is modified in-place.
+
+            \param Input An input sequence
+            \param IsSpace An unary predicate identifying spaces
+        */
+        template<typename SequenceT, typename PredicateT>
+        inline void trim_all_if(SequenceT& Input, PredicateT IsSpace)
+        {
+            ::boost::trim_if(Input, IsSpace);
+            ::boost::find_format_all(       
+                Input,          
+                ::boost::token_finder(IsSpace, ::boost::token_compress_on),
+                ::boost::dissect_formatter(::boost::head_finder(1)));
+        }
+
+
+        //! Trim All
+        /*!
+            Remove all leading and trailing spaces from the input and
+            compress all other spaces to a single character.
+            The result is a trimmed copy of the input
+
+            \param Input An input sequence
+            \param Loc A locale used for 'space' classification
+            \return A trimmed copy of the input
+        */
+        template<typename SequenceT>
+        inline SequenceT trim_all_copy(const SequenceT& Input, const std::locale& Loc =std::locale())
+        {
+            return trim_all_copy_if(Input, ::boost::is_space(Loc));
+        }
+
+
+        //! Trim All
+        /*!
+            Remove all leading and trailing spaces from the input and
+            compress all other spaces to a single character.
+            The input sequence is modified in-place.
+
+            \param Input An input sequence
+            \param Loc A locale used for 'space' classification
+            \return A trimmed copy of the input
+        */
+        template<typename SequenceT>
+        inline void trim_all(SequenceT& Input, const std::locale& Loc =std::locale())
+        {
+            trim_all_if(Input, ::boost::is_space(Loc));
+        }
+
+
+        //! Trim Fill - parametric
+        /*!
+            Remove all leading and trailing spaces from the input and
+            replace all every block of consecutive spaces with a fill string
+            defined by user.
+            The result is a trimmed copy of the input
+
+            \param Input An input sequence
+            \param Fill A string used to fill the inner spaces
+            \param IsSpace An unary predicate identifying spaces
+            \return A trimmed copy of the input
+        */
+        template<typename SequenceT, typename RangeT, typename PredicateT>
+        inline SequenceT trim_fill_copy_if(const SequenceT& Input, const RangeT& Fill, PredicateT IsSpace)
+        {
+            return 
+                ::boost::find_format_all_copy(      
+                    ::boost::trim_copy_if(Input, IsSpace),
+                    ::boost::token_finder(IsSpace, ::boost::token_compress_on),
+                    ::boost::const_formatter(::boost::as_literal(Fill)));
+        }
+
+
+        //! Trim Fill
+        /*!
+            Remove all leading and trailing spaces from the input and
+            replace all every block of consecutive spaces with a fill string
+            defined by user.
+            The input sequence is modified in-place.
+
+            \param Input An input sequence
+            \param Fill A string used to fill the inner spaces
+            \param IsSpace An unary predicate identifying spaces
+        */
+        template<typename SequenceT, typename RangeT, typename PredicateT>
+        inline void trim_fill_if(SequenceT& Input, const RangeT& Fill, PredicateT IsSpace)
+        {
+            ::boost::trim_if(Input, IsSpace);
+            ::boost::find_format_all(       
+                Input,          
+                ::boost::token_finder(IsSpace, ::boost::token_compress_on),
+                ::boost::const_formatter(::boost::as_literal(Fill)));
+        }
+
+
+        //! Trim Fill
+        /*!
+            Remove all leading and trailing spaces from the input and
+            replace all every block of consecutive spaces with a fill string
+            defined by user.
+            The result is a trimmed copy of the input
+
+            \param Input An input sequence
+            \param Fill A string used to fill the inner spaces
+            \param Loc A locale used for 'space' classification
+            \return A trimmed copy of the input
+        */
+        template<typename SequenceT, typename RangeT>
+        inline SequenceT trim_fill_copy(const SequenceT& Input, const RangeT& Fill, const std::locale& Loc =std::locale())
+        {
+            return trim_fill_copy_if(Input, Fill, ::boost::is_space(Loc));
+        }
+
+
+        //! Trim Fill
+        /*!
+            Remove all leading and trailing spaces from the input and
+            replace all every block of consecutive spaces with a fill string
+            defined by user.
+            The input sequence is modified in-place.
+
+            \param Input An input sequence
+            \param Fill A string used to fill the inner spaces
+            \param Loc A locale used for 'space' classification
+            \return A trimmed copy of the input
+        */
+        template<typename SequenceT, typename RangeT>
+        inline void trim_fill(SequenceT& Input, const RangeT& Fill, const std::locale& Loc =std::locale())
+        {
+            trim_fill_if(Input, Fill, ::boost::is_space(Loc));
+        }
+
+
+    } // namespace algorithm    
+
+    // pull names to the boost namespace
+    using algorithm::trim_all;
+    using algorithm::trim_all_if;
+    using algorithm::trim_all_copy;
+    using algorithm::trim_all_copy_if;
+    using algorithm::trim_fill;
+    using algorithm::trim_fill_if;
+    using algorithm::trim_fill_copy;
+    using algorithm::trim_fill_copy_if;
+
+} // namespace boost
+
+#endif  // BOOST_STRING_TRIM_ALL_HPP

string/test/replace_test.cpp

@@ -11,6 +11,9 @@
 #include <boost/algorithm/string/erase.hpp>
 #include <boost/algorithm/string/std/list_traits.hpp>
 #include <boost/algorithm/string/std/string_traits.hpp>
+#include <boost/algorithm/string/finder.hpp>
+#include <boost/algorithm/string/formatter.hpp>
+#include <boost/algorithm/string/classification.hpp>
 
 // Include unit test framework
 #include <boost/test/included/test_exec_monitor.hpp>
@@ -285,6 +288,23 @@ void collection_comp_test()
     }   
 }
 
+void dissect_format_test()
+{
+    BOOST_CHECK(
+        find_format_all_copy(
+            string("aBc123Abc"), 
+            first_finder("abc", is_iequal()), 
+            dissect_formatter(token_finder(is_upper())))=="B123A");
+
+
+    BOOST_CHECK(
+        find_format_all_copy(
+            string("abc   123   abc"),
+            token_finder(is_space(), token_compress_on),
+            dissect_formatter(head_finder(1)))=="abc 123 abc");
+
+}
+
 // test main 
 int test_main( int, char*[] )
 {
@@ -297,6 +317,7 @@ int test_main( int, char*[] )
     replace_tail_test();
     replace_range_test();
     collection_comp_test();
+    dissect_format_test();
 
     return 0;
 }

string/test/trim_test.cpp

@@ -8,6 +8,7 @@
 //  See http://www.boost.org for updates, documentation, and revision history.
 
 #include <boost/algorithm/string/trim.hpp>
+#include <boost/algorithm/string/trim_all.hpp>
 
 // Include unit test framework
 #include <boost/test/included/test_exec_monitor.hpp>
@@ -109,10 +110,95 @@ void trim_test()
     BOOST_CHECK( trim_copy_if( string("<>abc<>"), is_any_of( "<<>>" ) )=="abc" );
 }
 
+void trim_all_test()
+{
+    string str1("     1x   x   x   x1     ");
+    string str2("+---...2x+--x--+x-+-x2...---+");
+    string str3("    ");
+
+    // *** value passing tests *** //
+
+    // general string test
+    BOOST_CHECK( trim_all_copy( str1 )=="1x x x x1" ) ;
+    BOOST_CHECK( trim_all_copy_if( str2, is_punct() )=="2x+x-x-x2" ) ;
+
+    // spaces-only string test
+    BOOST_CHECK( trim_all_copy( str3 )=="" );
+
+    // empty string check 
+    BOOST_CHECK( trim_all_copy( string("") )=="" );
+
+    // general string test
+    trim_all( str1 );
+    BOOST_CHECK( str1=="1x x x x1" ) ;
+    trim_all_if( str2, is_punct() );
+    BOOST_CHECK( str2=="2x+x-x-x2" ) ;
+    
+    // spaces-only string test
+    str3 = "    "; trim_all( str3 );
+    BOOST_CHECK( str3=="" );
+
+    // empty string check 
+    str3 = ""; trim_all( str3 );
+    BOOST_CHECK( str3=="" );
+    BOOST_CHECK( str3=="" );
+
+    // *** non-standard predicate tests *** //
+    BOOST_CHECK( 
+        trim_all_copy_if( 
+            string("123abc127deb456"), 
+            is_classified(std::ctype_base::digit) )=="abc1deb" );
+    BOOST_CHECK( trim_all_copy_if( string("<>abc<>def<>"), is_any_of( "<<>>" ) )=="abc<def" );
+}
+
+void trim_fill_test()
+{
+    string str1("     1x   x   x   x1     ");
+    string str2("+---...2x+--x--+x-+-x2...---+");
+    string str3("    ");
+
+    // *** value passing tests *** //
+
+    // general string test
+    BOOST_CHECK( trim_fill_copy( str1, "-" )=="1x-x-x-x1" ) ;
+    BOOST_CHECK( trim_fill_copy_if( str2, " ", is_punct() )=="2x x x x2" ) ;
+
+    // spaces-only string test
+    BOOST_CHECK( trim_fill_copy( str3, " " )=="" );
+
+    // empty string check 
+    BOOST_CHECK( trim_fill_copy( string(""), " " )=="" );
+
+    // general string test
+    trim_fill( str1, "-" );
+    BOOST_CHECK( str1=="1x-x-x-x1" ) ;
+    trim_fill_if( str2, "", is_punct() );
+    BOOST_CHECK( str2=="2xxxx2" ) ;
+
+    // spaces-only string test
+    str3 = "    "; trim_fill( str3, "" );
+    BOOST_CHECK( str3=="" );
+
+    // empty string check 
+    str3 = ""; trim_fill( str3, "" );
+    BOOST_CHECK( str3=="" );
+    BOOST_CHECK( str3=="" );
+
+    // *** non-standard predicate tests *** //
+    BOOST_CHECK( 
+        trim_fill_copy_if( 
+        string("123abc127deb456"), 
+        "+",
+        is_classified(std::ctype_base::digit) )=="abc+deb" );
+    BOOST_CHECK( trim_fill_copy_if( string("<>abc<>def<>"), "-", is_any_of( "<<>>" ) )=="abc-def" );
+}
+
 // test main 
 int test_main( int, char*[] )
 {
     trim_test();
-    
+    trim_all_test();
+    trim_fill_test();
+
     return 0;
 }