Added boost header

test/external/boost/date_time/period_formatter.hpp

@@ -0,0 +1,196 @@
+
+#ifndef DATETIME_PERIOD_FORMATTER_HPP___
+#define DATETIME_PERIOD_FORMATTER_HPP___
+
+/* Copyright (c) 2002-2004 CrystalClear Software, Inc.
+ * Use, modification and distribution is subject to the 
+ * Boost Software License, Version 1.0. (See accompanying
+ * file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+ * Author: Jeff Garland, Bart Garst
+ * $Date: 2008-02-27 15:00:24 -0500 (Wed, 27 Feb 2008) $
+ */
+
+
+
+namespace boost { namespace date_time {
+
+
+  //! Not a facet, but a class used to specify and control period formats
+  /*! Provides settings for the following:
+   *   - period_separator -- default '/'
+   *   - period_open_start_delimeter -- default '['
+   *   - period_open_range_end_delimeter -- default ')' 
+   *   - period_closed_range_end_delimeter -- default ']' 
+   *   - display_as_open_range, display_as_closed_range -- default closed_range
+   *
+   *  Thus the default formatting for a period is as follows:
+   *@code
+   *  [period.start()/period.last()]
+   *@endcode 
+   *  So for a typical date_period this would be
+   *@code
+   *  [2004-Jan-04/2004-Feb-01]
+   *@endcode
+   * where the date formatting is controlled by the date facet
+   */
+  template <class CharT, class OutItrT = std::ostreambuf_iterator<CharT, std::char_traits<CharT> > >
+  class period_formatter { 
+  public:
+    typedef std::basic_string<CharT> string_type;
+    typedef CharT                    char_type;
+    typedef typename std::basic_string<char_type>::const_iterator const_itr_type;
+    typedef std::vector<std::basic_string<CharT> > collection_type;
+    
+    static const char_type default_period_separator[2];
+    static const char_type default_period_start_delimeter[2];
+    static const char_type default_period_open_range_end_delimeter[2];
+    static const char_type default_period_closed_range_end_delimeter[2];
+
+    enum range_display_options { AS_OPEN_RANGE, AS_CLOSED_RANGE };
+
+    //! Constructor that sets up period formatter options -- default should suffice most cases.
+    period_formatter(range_display_options range_option_in = AS_CLOSED_RANGE, 
+                     const char_type* const period_separator = default_period_separator, 
+                     const char_type* const period_start_delimeter = default_period_start_delimeter,
+                     const char_type* const period_open_range_end_delimeter = default_period_open_range_end_delimeter,
+                     const char_type* const period_closed_range_end_delimeter = default_period_closed_range_end_delimeter) :
+      m_range_option(range_option_in),
+      m_period_separator(period_separator),
+      m_period_start_delimeter(period_start_delimeter),
+      m_open_range_end_delimeter(period_open_range_end_delimeter),
+      m_closed_range_end_delimeter(period_closed_range_end_delimeter)
+    {}
+
+    //! Puts the characters between period elements into stream -- default is /
+    OutItrT put_period_separator(OutItrT& oitr) const 
+    {
+      const_itr_type ci = m_period_separator.begin();
+      while (ci != m_period_separator.end()) {
+        *oitr = *ci;
+        ci++;
+      }
+      return oitr;
+    }
+
+    //! Puts the period start characters into stream -- default is [
+    OutItrT put_period_start_delimeter(OutItrT& oitr) const 
+    {
+      const_itr_type ci = m_period_start_delimeter.begin();
+      while (ci != m_period_start_delimeter.end()) {
+        *oitr = *ci;
+        ci++;
+      }
+      return oitr;
+    }
+
+    //! Puts the period end characters into stream as controled by open/closed range setting.
+    OutItrT put_period_end_delimeter(OutItrT& oitr) const 
+    {
+      
+      const_itr_type ci, end;
+      if (m_range_option == AS_OPEN_RANGE) {
+        ci = m_open_range_end_delimeter.begin();
+        end = m_open_range_end_delimeter.end();
+      }
+      else {
+        ci = m_closed_range_end_delimeter.begin();
+        end = m_closed_range_end_delimeter.end();
+      }
+      while (ci != end) {
+        *oitr = *ci;
+        ci++;
+      }
+      return oitr;
+    }
+   
+    range_display_options range_option() const
+    {
+      return m_range_option;
+    }
+
+    //! Reset the range_option control
+    void 
+    range_option(range_display_options option) const
+    {
+      m_range_option = option;
+    }
+    void delimiter_strings(const string_type& separator,
+                           const string_type& start_delim,
+                           const string_type& open_end_delim,
+                           const string_type& closed_end_delim)
+    {
+      m_period_separator;
+      m_period_start_delimeter;
+      m_open_range_end_delimeter;
+      m_closed_range_end_delimeter;
+    }
+
+
+    //! Generic code to output a period -- no matter the period type.
+    /*! This generic code will output any period using a facet to
+     *  to output the 'elements'.  For example, in the case of a date_period
+     *  the elements will be instances of a date which will be formatted 
+     *  according the to setup in the passed facet parameter.
+     * 
+     *  The steps for formatting a period are always the same:
+     *  - put the start delimiter
+     *  - put start element
+     *  - put the separator 
+     *  - put either last or end element depending on range settings
+     *  - put end delimeter depending on range settings
+     *
+     *  Thus for a typical date period the result might look like this:
+     *@code
+     *
+     *    [March 01, 2004/June 07, 2004]   <-- closed range
+     *    [March 01, 2004/June 08, 2004)   <-- open range
+     *
+     *@endcode
+     */
+    template<class period_type, class facet_type>
+    OutItrT put_period(OutItrT next, 
+                       std::ios_base& a_ios, 
+                       char_type a_fill, 
+                       const period_type& p,
+                       const facet_type& facet) const {
+      put_period_start_delimeter(next);
+      next = facet.put(next, a_ios, a_fill, p.begin());
+      put_period_separator(next);
+      if (m_range_option == AS_CLOSED_RANGE) {
+        facet.put(next, a_ios, a_fill, p.last());
+      }
+      else {
+        facet.put(next, a_ios, a_fill, p.end());
+      }
+      put_period_end_delimeter(next);
+      return next;
+    }
+
+      
+  private:
+    range_display_options m_range_option;    
+    string_type m_period_separator;
+    string_type m_period_start_delimeter;
+    string_type m_open_range_end_delimeter;
+    string_type m_closed_range_end_delimeter;
+  };
+
+  template <class CharT, class OutItrT>  
+  const typename period_formatter<CharT, OutItrT>::char_type 
+  period_formatter<CharT, OutItrT>::default_period_separator[2] = {'/'};
+
+  template <class CharT, class OutItrT>  
+  const typename period_formatter<CharT, OutItrT>::char_type 
+  period_formatter<CharT, OutItrT>::default_period_start_delimeter[2] = {'['};
+
+  template <class CharT, class OutItrT>  
+  const typename period_formatter<CharT, OutItrT>::char_type 
+  period_formatter<CharT, OutItrT>::default_period_open_range_end_delimeter[2] = {')'};
+
+  template <class CharT, class OutItrT>  
+  const typename period_formatter<CharT, OutItrT>::char_type 
+  period_formatter<CharT, OutItrT>::default_period_closed_range_end_delimeter[2] = {']'};
+
+ } } //namespace boost::date_time
+
+#endif