imgtools/imglib/boostlibrary/boost/date_time/date_facet.hpp
changeset 2 39c28ec933dd
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/imgtools/imglib/boostlibrary/boost/date_time/date_facet.hpp	Mon May 10 19:54:49 2010 +0100
@@ -0,0 +1,781 @@
+#ifndef _DATE_TIME_DATE_FACET__HPP___
+#define _DATE_TIME_DATE_FACET__HPP___
+
+/* Copyright (c) 2004-2005 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:  Martin Andrian, Jeff Garland, Bart Garst
+ * $Date: 2009-02-01 06:29:43 -0500 (Sun, 01 Feb 2009) $
+ */
+
+#include <locale>
+#include <string>
+#include <vector>
+#include <iterator> // ostreambuf_iterator
+#include <boost/throw_exception.hpp>
+#include <boost/algorithm/string/replace.hpp>
+#include <boost/date_time/compiler_config.hpp>
+#include <boost/date_time/period.hpp>
+#include <boost/date_time/special_defs.hpp>
+#include <boost/date_time/special_values_formatter.hpp>
+#include <boost/date_time/period_formatter.hpp>
+#include <boost/date_time/period_parser.hpp>
+#include <boost/date_time/date_generator_formatter.hpp>
+#include <boost/date_time/date_generator_parser.hpp>
+#include <boost/date_time/format_date_parser.hpp>
+
+namespace boost { namespace date_time {
+
+  
+  /*! Class that provides format based I/O facet for date types.
+   *
+   * This class allows the formatting of dates by using format string.
+   * Format strings are:
+   *
+   *  - %A => long_weekday_format - Full name Ex: Tuesday
+   *  - %a => short_weekday_format - Three letter abbreviation Ex: Tue
+   *  - %B => long_month_format - Full name Ex: October
+   *  - %b => short_month_format - Three letter abbreviation Ex: Oct
+   *  - %x => standard_format_specifier - defined by the locale
+   *  - %Y-%b-%d => default_date_format - YYYY-Mon-dd
+   *
+   * Default month format == %b
+   * Default weekday format == %a
+   */
+  template <class date_type,
+            class CharT, 
+            class OutItrT = std::ostreambuf_iterator<CharT, std::char_traits<CharT> > >
+  class date_facet : public std::locale::facet {
+  public:
+    typedef typename date_type::duration_type duration_type;
+    // greg_weekday is gregorian_calendar::day_of_week_type
+    typedef typename date_type::day_of_week_type day_of_week_type;
+    typedef typename date_type::day_type day_type;
+    typedef typename date_type::month_type month_type;
+    typedef boost::date_time::period<date_type,duration_type> period_type;
+    typedef std::basic_string<CharT> string_type;
+    typedef CharT                    char_type;
+    typedef boost::date_time::period_formatter<CharT>  period_formatter_type;
+    typedef boost::date_time::special_values_formatter<CharT>  special_values_formatter_type;
+    typedef std::vector<std::basic_string<CharT> > input_collection_type;
+    // used for the output of the date_generators
+    typedef date_generator_formatter<date_type, CharT> date_gen_formatter_type;
+    typedef partial_date<date_type>          partial_date_type;
+    typedef nth_kday_of_month<date_type>     nth_kday_type;
+    typedef first_kday_of_month<date_type>   first_kday_type;
+    typedef last_kday_of_month<date_type>    last_kday_type;
+    typedef first_kday_after<date_type>      kday_after_type;
+    typedef first_kday_before<date_type>     kday_before_type;
+    static const char_type long_weekday_format[3];
+    static const char_type short_weekday_format[3];
+    static const char_type long_month_format[3];
+    static const char_type short_month_format[3];
+    static const char_type default_period_separator[4];
+    static const char_type standard_format_specifier[3];
+    static const char_type iso_format_specifier[7];
+    static const char_type iso_format_extended_specifier[9];
+    static const char_type default_date_format[9]; // YYYY-Mon-DD
+    static std::locale::id id;
+
+#if defined (__SUNPRO_CC) && defined (_RWSTD_VER)
+      std::locale::id& __get_id (void) const { return id; }
+#endif
+    
+    explicit date_facet(::size_t a_ref = 0) 
+      : std::locale::facet(a_ref), 
+        //m_format(standard_format_specifier)
+        m_format(default_date_format),
+        m_month_format(short_month_format),
+        m_weekday_format(short_weekday_format)
+    {}
+
+    explicit date_facet(const char_type* format_str,
+                        const input_collection_type& short_names,
+                        ::size_t ref_count = 0) 
+      : std::locale::facet(ref_count), 
+        m_format(format_str),
+        m_month_format(short_month_format),
+        m_weekday_format(short_weekday_format),
+        m_month_short_names(short_names) 
+    {}
+
+     
+    explicit date_facet(const char_type* format_str, 
+                        period_formatter_type per_formatter = period_formatter_type(), 
+                        special_values_formatter_type sv_formatter = special_values_formatter_type(),
+                        date_gen_formatter_type dg_formatter = date_gen_formatter_type(),
+                        ::size_t ref_count = 0)
+      : std::locale::facet(ref_count), 
+        m_format(format_str), 
+        m_month_format(short_month_format),
+        m_weekday_format(short_weekday_format),
+        m_period_formatter(per_formatter),
+        m_date_gen_formatter(dg_formatter),
+        m_special_values_formatter(sv_formatter)
+     {}
+    void format(const char_type* const format_str) {
+      m_format = format_str;
+    }
+    virtual void set_iso_format()
+    {
+      m_format = iso_format_specifier;
+    }
+    virtual void set_iso_extended_format()
+    {
+      m_format = iso_format_extended_specifier;
+    }
+    void month_format(const char_type* const format_str) {
+      m_month_format = format_str;
+    }
+    void weekday_format(const char_type* const format_str) {
+      m_weekday_format = format_str;
+    }
+    
+    void period_formatter(period_formatter_type per_formatter) {
+      m_period_formatter= per_formatter;
+    }
+    void special_values_formatter(const special_values_formatter_type& svf) 
+    {
+      m_special_values_formatter = svf;
+    }
+    void short_weekday_names(const input_collection_type& short_names)
+    {
+      m_weekday_short_names = short_names;
+    }
+    void long_weekday_names(const input_collection_type& long_names)
+    {
+      m_weekday_long_names = long_names;
+    }
+
+    void short_month_names(const input_collection_type& short_names)
+    {
+      m_month_short_names = short_names;
+    }
+
+    void long_month_names(const input_collection_type& long_names)
+    {
+      m_month_long_names = long_names;
+    }
+
+    void date_gen_phrase_strings(const input_collection_type& new_strings,
+                           typename date_gen_formatter_type::phrase_elements beg_pos=date_gen_formatter_type::first)
+    {
+      m_date_gen_formatter.elements(new_strings, beg_pos);
+    }
+
+    OutItrT put(OutItrT next, 
+                std::ios_base& a_ios, 
+                char_type fill_char, 
+                const date_type& d) const 
+    {
+      if (d.is_special()) { 
+        return do_put_special(next, a_ios, fill_char, d.as_special());
+      }
+      //The following line of code required the date to support a to_tm function
+      return do_put_tm(next, a_ios, fill_char, to_tm(d), m_format);
+    }
+
+    OutItrT put(OutItrT next, 
+                std::ios_base& a_ios, 
+                char_type fill_char, 
+                const duration_type& dd) const 
+    {
+      if (dd.is_special()) { 
+        return do_put_special(next, a_ios, fill_char, dd.get_rep().as_special());
+      }
+
+      typedef std::num_put<CharT, OutItrT> num_put;
+      if (std::has_facet<num_put>(a_ios.getloc())) {
+        return std::use_facet<num_put>(a_ios.getloc()).put(next, a_ios, fill_char, dd.get_rep().as_number());
+      }
+      else {
+        num_put* f = new num_put();
+        std::locale l = std::locale(a_ios.getloc(), f);
+        a_ios.imbue(l);
+        return f->put(next, a_ios, fill_char, dd.get_rep().as_number());
+      }
+
+    }
+
+
+    OutItrT put(OutItrT next, 
+                std::ios_base& a_ios, 
+                char_type fill_char, 
+                const month_type& m) const 
+    {
+      //if (d.is_special()) { 
+      //  return do_put_special(next, a_ios, fill_char, d.as_special());
+      //}
+      //The following line of code required the date to support a to_tm function
+      tm dtm;
+      init_tm(dtm);
+      dtm.tm_mon = m -1;
+      return do_put_tm(next, a_ios, fill_char, dtm, m_month_format);
+    }
+
+    //! puts the day of month
+    OutItrT put(OutItrT next, 
+                std::ios_base& a_ios, 
+                char_type fill_char, 
+                const day_type& day) const 
+    {
+      tm dtm;
+      init_tm(dtm);
+      dtm.tm_mday = day.as_number();
+      char_type tmp[3] = {'%','d'};
+      string_type temp_format(tmp);
+      return do_put_tm(next, a_ios, fill_char, dtm, temp_format);
+    }
+
+    OutItrT put(OutItrT next, 
+                std::ios_base& a_ios, 
+                char_type fill_char, 
+                const day_of_week_type& dow) const 
+    {
+      //if (d.is_special()) { 
+      //  return do_put_special(next, a_ios, fill_char, d.as_special());
+      //}
+      //The following line of code required the date to support a to_tm function
+      tm dtm;
+      init_tm(dtm);
+      dtm.tm_wday = dow;
+      return do_put_tm(next, a_ios, fill_char, dtm, m_weekday_format);
+    }
+
+
+    OutItrT put(OutItrT next, 
+                std::ios_base& a_ios, 
+                char_type fill_char, 
+                const period_type& p) const 
+    {
+      return m_period_formatter.put_period(next, a_ios, fill_char, p, *this);
+    }
+
+    OutItrT put(OutItrT next, 
+                std::ios_base& a_ios, 
+                char_type fill_char, 
+                const partial_date_type& pd) const 
+    {
+      return m_date_gen_formatter.put_partial_date(next, a_ios, fill_char, pd, *this);
+    }
+
+    OutItrT put(OutItrT next, 
+                std::ios_base& a_ios, 
+                char_type fill_char, 
+                const nth_kday_type& nkd) const 
+    {
+      return m_date_gen_formatter.put_nth_kday(next, a_ios, fill_char, nkd, *this);
+    }
+
+    OutItrT put(OutItrT next, 
+                std::ios_base& a_ios, 
+                char_type fill_char, 
+                const first_kday_type& fkd) const 
+    {
+      return m_date_gen_formatter.put_first_kday(next, a_ios, fill_char, fkd, *this);
+    }
+
+    OutItrT put(OutItrT next, 
+                std::ios_base& a_ios, 
+                char_type fill_char, 
+                const last_kday_type& lkd) const 
+    {
+      return m_date_gen_formatter.put_last_kday(next, a_ios, fill_char, lkd, *this);
+    }
+
+    OutItrT put(OutItrT next, 
+                std::ios_base& a_ios, 
+                char_type fill_char, 
+                const kday_before_type& fkb) const 
+    {
+      return m_date_gen_formatter.put_kday_before(next, a_ios, fill_char, fkb, *this);
+    }
+
+    OutItrT put(OutItrT next, 
+                std::ios_base& a_ios, 
+                char_type fill_char, 
+                const kday_after_type& fka) const 
+    {
+      return m_date_gen_formatter.put_kday_after(next, a_ios, fill_char, fka, *this);
+    }
+    
+  protected:
+    //! Helper function to initialize all fields in a tm struct
+    tm init_tm(tm& tm_value) const
+    {
+      tm_value.tm_sec = 0;         /* seconds */
+      tm_value.tm_min = 0;         /* minutes */
+      tm_value.tm_hour = 0;        /* hours */
+      tm_value.tm_mday = 0;        /* day of the month */
+      tm_value.tm_mon = 0;         /* month */
+      tm_value.tm_year = 0;        /* year */
+      tm_value.tm_wday = 0;        /* day of the week */
+      tm_value.tm_yday = 0;        /* day in the year */
+      tm_value.tm_isdst = 0;       /* daylight saving time */
+      return tm_value;
+    }
+    virtual OutItrT do_put_special(OutItrT next, 
+                                   std::ios_base& /*a_ios*/, 
+                                   char_type /*fill_char*/, 
+                                   const boost::date_time::special_values sv) const 
+    {
+      m_special_values_formatter.put_special(next, sv);
+      return next;
+    }
+    virtual OutItrT do_put_tm(OutItrT next, 
+                              std::ios_base& a_ios, 
+                              char_type fill_char, 
+                              const tm& tm_value,
+                              string_type a_format) const 
+    {
+      // update format string with custom names
+      if (m_weekday_long_names.size()) {
+        boost::algorithm::replace_all(a_format, 
+                                      long_weekday_format, 
+                                      m_weekday_long_names[tm_value.tm_wday]);
+      }
+      if (m_weekday_short_names.size()) {
+        boost::algorithm::replace_all(a_format, 
+                                      short_weekday_format, 
+                                      m_weekday_short_names[tm_value.tm_wday]);
+
+      }
+      if (m_month_long_names.size()) {
+        boost::algorithm::replace_all(a_format, 
+                                      long_month_format, 
+                                      m_month_long_names[tm_value.tm_mon]);
+      }
+      if (m_month_short_names.size()) {
+        boost::algorithm::replace_all(a_format, 
+                                      short_month_format, 
+                                      m_month_short_names[tm_value.tm_mon]);
+      }
+      // use time_put facet to create final string
+      const char_type* p_format = a_format.c_str();
+      return std::use_facet<std::time_put<CharT> >(a_ios.getloc()).put(next, a_ios, 
+                                                                       fill_char, 
+                                                                       &tm_value,
+                                                                       p_format, 
+                                                                       p_format + a_format.size());
+    }
+  protected:
+    string_type                   m_format;
+    string_type                   m_month_format;
+    string_type                   m_weekday_format;
+    period_formatter_type         m_period_formatter;
+    date_gen_formatter_type       m_date_gen_formatter;
+    special_values_formatter_type m_special_values_formatter;
+    input_collection_type         m_month_short_names;
+    input_collection_type         m_month_long_names;
+    input_collection_type         m_weekday_short_names;
+    input_collection_type         m_weekday_long_names;
+  private:
+  };
+
+  template <class date_type, class CharT, class OutItrT>
+  std::locale::id date_facet<date_type, CharT, OutItrT>::id;
+
+  template <class date_type, class CharT, class OutItrT>  
+  const typename date_facet<date_type, CharT, OutItrT>::char_type 
+  date_facet<date_type, CharT, OutItrT>::long_weekday_format[3] = {'%','A'};
+
+  template <class date_type, class CharT, class OutItrT>  
+  const typename date_facet<date_type, CharT, OutItrT>::char_type 
+  date_facet<date_type, CharT, OutItrT>::short_weekday_format[3] = {'%','a'};
+
+  template <class date_type, class CharT, class OutItrT>  
+  const typename date_facet<date_type, CharT, OutItrT>::char_type 
+  date_facet<date_type, CharT, OutItrT>::long_month_format[3] = {'%','B'};
+
+  template <class date_type, class CharT, class OutItrT>  
+  const typename date_facet<date_type, CharT, OutItrT>::char_type 
+  date_facet<date_type, CharT, OutItrT>::short_month_format[3] = {'%','b'};
+
+  template <class date_type, class CharT, class OutItrT>  
+  const typename date_facet<date_type, CharT, OutItrT>::char_type 
+  date_facet<date_type, CharT, OutItrT>::default_period_separator[4] = { ' ', '/', ' '};
+
+  template <class date_type, class CharT, class OutItrT>  
+  const typename date_facet<date_type, CharT, OutItrT>::char_type 
+  date_facet<date_type, CharT, OutItrT>::standard_format_specifier[3] = 
+    {'%', 'x' };
+
+  template <class date_type, class CharT, class OutItrT>  
+  const typename date_facet<date_type, CharT, OutItrT>::char_type 
+  date_facet<date_type, CharT, OutItrT>::iso_format_specifier[7] = 
+    {'%', 'Y', '%', 'm', '%', 'd' };
+
+  template <class date_type, class CharT, class OutItrT>  
+  const typename date_facet<date_type, CharT, OutItrT>::char_type 
+  date_facet<date_type, CharT, OutItrT>::iso_format_extended_specifier[9] = 
+    {'%', 'Y', '-', '%', 'm', '-', '%', 'd' };
+
+  template <class date_type, class CharT, class OutItrT>  
+  const typename date_facet<date_type, CharT, OutItrT>::char_type 
+  date_facet<date_type, CharT, OutItrT>::default_date_format[9] = 
+    {'%','Y','-','%','b','-','%','d'};
+
+
+
+  //! Input facet
+  template <class date_type,
+            class CharT, 
+            class InItrT = std::istreambuf_iterator<CharT, std::char_traits<CharT> > >
+  class date_input_facet : public std::locale::facet {
+  public:
+    typedef typename date_type::duration_type duration_type;
+    // greg_weekday is gregorian_calendar::day_of_week_type
+    typedef typename date_type::day_of_week_type day_of_week_type;
+    typedef typename date_type::day_type day_type;
+    typedef typename date_type::month_type month_type;
+    typedef typename date_type::year_type year_type;
+    typedef boost::date_time::period<date_type,duration_type> period_type;
+    typedef std::basic_string<CharT> string_type;
+    typedef CharT                    char_type;
+    typedef boost::date_time::period_parser<date_type, CharT>  period_parser_type;
+    typedef boost::date_time::special_values_parser<date_type,CharT> special_values_parser_type; 
+    typedef std::vector<std::basic_string<CharT> > input_collection_type;
+    typedef format_date_parser<date_type, CharT> format_date_parser_type;
+    // date_generators stuff goes here
+    typedef date_generator_parser<date_type, CharT> date_gen_parser_type;
+    typedef partial_date<date_type>          partial_date_type;
+    typedef nth_kday_of_month<date_type>     nth_kday_type;
+    typedef first_kday_of_month<date_type>   first_kday_type;
+    typedef last_kday_of_month<date_type>    last_kday_type;
+    typedef first_kday_after<date_type>      kday_after_type;
+    typedef first_kday_before<date_type>     kday_before_type;
+
+    static const char_type long_weekday_format[3];
+    static const char_type short_weekday_format[3];
+    static const char_type long_month_format[3];
+    static const char_type short_month_format[3];
+    static const char_type four_digit_year_format[3];
+    static const char_type two_digit_year_format[3];
+    static const char_type default_period_separator[4];
+    static const char_type standard_format_specifier[3];
+    static const char_type iso_format_specifier[7];
+    static const char_type iso_format_extended_specifier[9];
+    static const char_type default_date_format[9]; // YYYY-Mon-DD
+    static std::locale::id id;
+    
+    explicit date_input_facet(::size_t a_ref = 0) 
+      : std::locale::facet(a_ref), 
+        m_format(default_date_format),
+        m_month_format(short_month_format),
+        m_weekday_format(short_weekday_format),
+        m_year_format(four_digit_year_format),
+        m_parser(m_format, std::locale::classic())
+        // default period_parser & special_values_parser used
+    {}
+
+    explicit date_input_facet(const string_type& format_str,
+                              ::size_t a_ref = 0) 
+      : std::locale::facet(a_ref), 
+        m_format(format_str),
+        m_month_format(short_month_format),
+        m_weekday_format(short_weekday_format),
+        m_year_format(four_digit_year_format),
+        m_parser(m_format, std::locale::classic())
+        // default period_parser & special_values_parser used
+    {}
+
+    explicit date_input_facet(const string_type& format_str,
+                              const format_date_parser_type& date_parser,
+                              const special_values_parser_type& sv_parser,
+                              const period_parser_type& per_parser,
+                              const date_gen_parser_type& date_gen_parser,
+                              ::size_t ref_count = 0)
+      : std::locale::facet(ref_count),
+        m_format(format_str),
+        m_month_format(short_month_format),
+        m_weekday_format(short_weekday_format),
+        m_year_format(four_digit_year_format),
+        m_parser(date_parser),
+        m_date_gen_parser(date_gen_parser),
+        m_period_parser(per_parser),
+        m_sv_parser(sv_parser)
+    {}
+
+
+    void format(const char_type* const format_str) {
+      m_format = format_str;
+    }
+    virtual void set_iso_format()
+    {
+      m_format = iso_format_specifier;
+    }
+    virtual void set_iso_extended_format()
+    {
+      m_format = iso_format_extended_specifier;
+    }
+    void month_format(const char_type* const format_str) {
+      m_month_format = format_str;
+    }
+    void weekday_format(const char_type* const format_str) {
+      m_weekday_format = format_str;
+    }
+    void year_format(const char_type* const format_str) {
+      m_year_format = format_str;
+    }
+    
+    void period_parser(period_parser_type per_parser) {
+      m_period_parser = per_parser;
+    }
+    void short_weekday_names(const input_collection_type& weekday_names)
+    {
+      m_parser.short_weekday_names(weekday_names);
+    }
+    void long_weekday_names(const input_collection_type& weekday_names)
+    {
+      m_parser.long_weekday_names(weekday_names);
+    }
+
+    void short_month_names(const input_collection_type& month_names)
+    {
+      m_parser.short_month_names(month_names);
+    }
+
+    void long_month_names(const input_collection_type& month_names)
+    {
+      m_parser.long_month_names(month_names);
+    }
+
+    void date_gen_element_strings(const input_collection_type& col)
+    {
+      m_date_gen_parser.element_strings(col);
+    }
+    void date_gen_element_strings(const string_type& first,
+                                  const string_type& second,
+                                  const string_type& third,
+                                  const string_type& fourth,
+                                  const string_type& fifth,
+                                  const string_type& last,
+                                  const string_type& before,
+                                  const string_type& after,
+                                  const string_type& of)
+                           
+    {
+      m_date_gen_parser.element_strings(first,second,third,fourth,fifth,last,before,after,of);
+    }
+
+    void special_values_parser(special_values_parser_type sv_parser)
+    {
+      m_sv_parser = sv_parser;
+    }
+
+    InItrT get(InItrT& from, 
+               InItrT& to, 
+               std::ios_base& /*a_ios*/, 
+               date_type& d) const
+    {
+      d = m_parser.parse_date(from, to, m_format, m_sv_parser);
+      return from;
+    }
+    InItrT get(InItrT& from, 
+               InItrT& to, 
+               std::ios_base& /*a_ios*/, 
+               month_type& m) const
+    {
+      m = m_parser.parse_month(from, to, m_month_format);
+      return from;
+    }
+    InItrT get(InItrT& from, 
+               InItrT& to, 
+               std::ios_base& /*a_ios*/, 
+               day_of_week_type& wd) const
+    {
+      wd = m_parser.parse_weekday(from, to, m_weekday_format);
+      return from;
+    }
+    //! Expects 1 or 2 digit day range: 1-31
+    InItrT get(InItrT& from, 
+               InItrT& to, 
+               std::ios_base& /*a_ios*/, 
+               day_type& d) const
+    {
+      d = m_parser.parse_var_day_of_month(from, to);
+      return from;
+    }
+    InItrT get(InItrT& from, 
+               InItrT& to, 
+               std::ios_base& /*a_ios*/, 
+               year_type& y) const
+    {
+      y = m_parser.parse_year(from, to, m_year_format);
+      return from;
+    }
+    InItrT get(InItrT& from, 
+               InItrT& to, 
+               std::ios_base& a_ios, 
+               duration_type& dd) const
+    {
+      // skip leading whitespace
+      while(std::isspace(*from) && from != to) { ++from; } 
+     
+      /* num_get.get() will always consume the first character if it 
+       * is a sign indicator (+/-). Special value strings may begin 
+       * with one of these signs so we'll need a copy of it
+       * in case num_get.get() fails. */
+      char_type c = '\0'; 
+      // TODO Are these characters somewhere in the locale?
+      if(*from == '-' || *from == '+') { 
+        c = *from;
+      }
+      typedef std::num_get<CharT, InItrT> num_get;
+      typename duration_type::duration_rep_type val = 0;
+      std::ios_base::iostate err = std::ios_base::goodbit;
+      
+      if (std::has_facet<num_get>(a_ios.getloc())) {
+        from = std::use_facet<num_get>(a_ios.getloc()).get(from, to, a_ios, err, val);
+      }
+      else {
+        num_get* ng = new num_get();
+        std::locale l = std::locale(a_ios.getloc(), ng);
+        a_ios.imbue(l);
+        from = ng->get(from, to, a_ios, err, val);
+      }
+      if(err & std::ios_base::failbit){
+        typedef typename special_values_parser_type::match_results match_results;
+        match_results mr;
+        if(c == '-' || c == '+') { // was the first character consumed?
+          mr.cache += c;
+        }
+        m_sv_parser.match(from, to, mr);
+        if(mr.current_match == match_results::PARSE_ERROR) {
+          boost::throw_exception(std::ios_base::failure("Parse failed. No match found for '" + mr.cache + "'"));
+          BOOST_DATE_TIME_UNREACHABLE_EXPRESSION(return from); // should never reach
+        }
+        dd = duration_type(static_cast<special_values>(mr.current_match)); 
+      }
+      else {
+        dd = duration_type(val);
+      }
+      return from;
+    }
+    InItrT get(InItrT& from, 
+               InItrT& to, 
+               std::ios_base& a_ios, 
+               period_type& p) const
+    {
+      p = m_period_parser.get_period(from, to, a_ios, p, duration_type::unit(), *this);     
+      return from;
+    }
+    InItrT get(InItrT& from, 
+               InItrT& to, 
+               std::ios_base& a_ios, 
+               nth_kday_type& nkd) const
+    {
+      nkd = m_date_gen_parser.get_nth_kday_type(from, to, a_ios, *this);
+      return from;
+    }
+    InItrT get(InItrT& from, 
+               InItrT& to, 
+               std::ios_base& a_ios, 
+               partial_date_type& pd) const
+    {
+
+      pd = m_date_gen_parser.get_partial_date_type(from, to, a_ios, *this);
+      return from;
+    }
+    InItrT get(InItrT& from, 
+               InItrT& to, 
+               std::ios_base& a_ios, 
+               first_kday_type& fkd) const
+    {
+      fkd = m_date_gen_parser.get_first_kday_type(from, to, a_ios, *this);
+      return from;
+    }
+    InItrT get(InItrT& from, 
+               InItrT& to, 
+               std::ios_base& a_ios, 
+               last_kday_type& lkd) const
+    {
+      lkd = m_date_gen_parser.get_last_kday_type(from, to, a_ios, *this);
+      return from;
+    }
+    InItrT get(InItrT& from, 
+               InItrT& to, 
+               std::ios_base& a_ios, 
+               kday_before_type& fkb) const
+    {
+      fkb = m_date_gen_parser.get_kday_before_type(from, to, a_ios, *this);
+      return from;
+    }
+    InItrT get(InItrT& from, 
+               InItrT& to, 
+               std::ios_base& a_ios, 
+               kday_after_type& fka) const
+    {
+      fka = m_date_gen_parser.get_kday_after_type(from, to, a_ios, *this);
+      return from;
+    }
+
+  protected:
+    string_type                   m_format;
+    string_type                   m_month_format;
+    string_type                   m_weekday_format;
+    string_type                   m_year_format;
+    format_date_parser_type       m_parser;
+    date_gen_parser_type          m_date_gen_parser;
+    period_parser_type            m_period_parser;
+    special_values_parser_type    m_sv_parser;
+  private:
+  };
+
+
+  template <class date_type, class CharT, class OutItrT>
+  std::locale::id date_input_facet<date_type, CharT, OutItrT>::id;
+
+  template <class date_type, class CharT, class OutItrT>  
+  const typename date_input_facet<date_type, CharT, OutItrT>::char_type 
+  date_input_facet<date_type, CharT, OutItrT>::long_weekday_format[3] = {'%','A'};
+
+  template <class date_type, class CharT, class OutItrT>  
+  const typename date_input_facet<date_type, CharT, OutItrT>::char_type 
+  date_input_facet<date_type, CharT, OutItrT>::short_weekday_format[3] = {'%','a'};
+
+  template <class date_type, class CharT, class OutItrT>  
+  const typename date_input_facet<date_type, CharT, OutItrT>::char_type 
+  date_input_facet<date_type, CharT, OutItrT>::long_month_format[3] = {'%','B'};
+
+  template <class date_type, class CharT, class OutItrT>  
+  const typename date_input_facet<date_type, CharT, OutItrT>::char_type 
+  date_input_facet<date_type, CharT, OutItrT>::short_month_format[3] = {'%','b'};
+
+  template <class date_type, class CharT, class OutItrT>  
+  const typename date_input_facet<date_type, CharT, OutItrT>::char_type 
+  date_input_facet<date_type, CharT, OutItrT>::four_digit_year_format[3] = {'%','Y'};
+
+  template <class date_type, class CharT, class OutItrT>  
+  const typename date_input_facet<date_type, CharT, OutItrT>::char_type 
+  date_input_facet<date_type, CharT, OutItrT>::two_digit_year_format[3] = {'%','y'};
+
+  template <class date_type, class CharT, class OutItrT>  
+  const typename date_input_facet<date_type, CharT, OutItrT>::char_type 
+  date_input_facet<date_type, CharT, OutItrT>::default_period_separator[4] = { ' ', '/', ' '};
+
+  template <class date_type, class CharT, class OutItrT>  
+  const typename date_input_facet<date_type, CharT, OutItrT>::char_type 
+  date_input_facet<date_type, CharT, OutItrT>::standard_format_specifier[3] = 
+    {'%', 'x' };
+
+  template <class date_type, class CharT, class OutItrT>  
+  const typename date_input_facet<date_type, CharT, OutItrT>::char_type 
+  date_input_facet<date_type, CharT, OutItrT>::iso_format_specifier[7] = 
+    {'%', 'Y', '%', 'm', '%', 'd' };
+
+  template <class date_type, class CharT, class OutItrT>  
+  const typename date_input_facet<date_type, CharT, OutItrT>::char_type 
+  date_input_facet<date_type, CharT, OutItrT>::iso_format_extended_specifier[9] = 
+    {'%', 'Y', '-', '%', 'm', '-', '%', 'd' };
+
+  template <class date_type, class CharT, class OutItrT>  
+  const typename date_input_facet<date_type, CharT, OutItrT>::char_type 
+  date_input_facet<date_type, CharT, OutItrT>::default_date_format[9] = 
+    {'%','Y','-','%','b','-','%','d'};
+
+} } // namespaces
+
+
+#endif