整理

include/boost/date_time/posix_time/time_formatters.hpp

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+#ifndef POSIXTIME_FORMATTERS_HPP___
+#define POSIXTIME_FORMATTERS_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
+ * $Date$
+ */
+
+#include <boost/date_time/gregorian/gregorian.hpp>
+#include <boost/date_time/compiler_config.hpp>
+#include <boost/date_time/iso_format.hpp>
+#include <boost/date_time/date_format_simple.hpp>
+#include <boost/date_time/posix_time/posix_time_types.hpp>
+#include <boost/date_time/time_formatting_streams.hpp>
+#include <boost/date_time/time_resolution_traits.hpp> // absolute_value
+#include <boost/date_time/time_parsing.hpp>
+
+/* NOTE: The "to_*_string" code for older compilers, ones that define
+ * BOOST_DATE_TIME_INCLUDE_LIMITED_HEADERS, is located in
+ * formatters_limited.hpp
+ */
+
+namespace boost {
+
+namespace posix_time {
+
+  // template function called by wrapper functions:
+  // to_*_string(time_duration) & to_*_wstring(time_duration)
+  template<class charT>
+  inline std::basic_string<charT> to_simple_string_type(time_duration td) {
+    std::basic_ostringstream<charT> ss;
+    if(td.is_special()) {
+      /* simply using 'ss << td.get_rep()' won't work on compilers
+       * that don't support locales. This way does. */
+      // switch copied from date_names_put.hpp
+      switch(td.get_rep().as_special())
+      {
+      case not_a_date_time:
+        //ss << "not-a-number";
+        ss << "not-a-date-time";
+        break;
+      case pos_infin:
+        ss << "+infinity";
+        break;
+      case neg_infin:
+        ss << "-infinity";
+        break;
+      default:
+        ss << "";
+      }
+    }
+    else {
+      charT fill_char = '0';
+      if(td.is_negative()) {
+        ss << '-';
+      }
+      ss  << std::setw(2) << std::setfill(fill_char)
+          << date_time::absolute_value(td.hours()) << ":";
+      ss  << std::setw(2) << std::setfill(fill_char)
+          << date_time::absolute_value(td.minutes()) << ":";
+      ss  << std::setw(2) << std::setfill(fill_char)
+          << date_time::absolute_value(td.seconds());
+      //TODO the following is totally non-generic, yelling FIXME
+#if (defined(BOOST_MSVC) && (_MSC_VER < 1300))
+      boost::int64_t frac_sec =
+        date_time::absolute_value(td.fractional_seconds());
+      // JDG [7/6/02 VC++ compatibility]
+      charT buff[32];
+      _i64toa(frac_sec, buff, 10);
+#else
+      time_duration::fractional_seconds_type frac_sec =
+        date_time::absolute_value(td.fractional_seconds());
+#endif
+      if (frac_sec != 0) {
+        ss  << "." << std::setw(time_duration::num_fractional_digits())
+            << std::setfill(fill_char)
+
+          // JDG [7/6/02 VC++ compatibility]
+#if (defined(BOOST_MSVC) && (_MSC_VER < 1300))
+            << buff;
+#else
+        << frac_sec;
+#endif
+      }
+    }// else
+    return ss.str();
+  }
+  //! Time duration to string -hh::mm::ss.fffffff. Example: 10:09:03.0123456
+  /*!\ingroup time_format
+   */
+  inline std::string to_simple_string(time_duration td) {
+    return to_simple_string_type<char>(td);
+  }
+
+
+  // template function called by wrapper functions:
+  // to_*_string(time_duration) & to_*_wstring(time_duration)
+  template<class charT>
+  inline std::basic_string<charT> to_iso_string_type(time_duration td)
+  {
+    std::basic_ostringstream<charT> ss;
+    if(td.is_special()) {
+      /* simply using 'ss << td.get_rep()' won't work on compilers
+       * that don't support locales. This way does. */
+      // switch copied from date_names_put.hpp
+      switch(td.get_rep().as_special()) {
+      case not_a_date_time:
+        //ss << "not-a-number";
+        ss << "not-a-date-time";
+        break;
+      case pos_infin:
+        ss << "+infinity";
+        break;
+      case neg_infin:
+        ss << "-infinity";
+        break;
+      default:
+        ss << "";
+      }
+    }
+    else {
+      charT fill_char = '0';
+      if(td.is_negative()) {
+        ss << '-';
+      }
+      ss  << std::setw(2) << std::setfill(fill_char)
+          << date_time::absolute_value(td.hours());
+      ss  << std::setw(2) << std::setfill(fill_char)
+          << date_time::absolute_value(td.minutes());
+      ss  << std::setw(2) << std::setfill(fill_char)
+          << date_time::absolute_value(td.seconds());
+      //TODO the following is totally non-generic, yelling FIXME
+#if (defined(BOOST_MSVC) && (_MSC_VER < 1300))
+      boost::int64_t frac_sec =
+        date_time::absolute_value(td.fractional_seconds());
+      // JDG [7/6/02 VC++ compatibility]
+      charT buff[32];
+      _i64toa(frac_sec, buff, 10);
+#else
+      time_duration::fractional_seconds_type frac_sec =
+        date_time::absolute_value(td.fractional_seconds());
+#endif
+      if (frac_sec != 0) {
+        ss  << "." << std::setw(time_duration::num_fractional_digits())
+            << std::setfill(fill_char)
+
+          // JDG [7/6/02 VC++ compatibility]
+#if (defined(BOOST_MSVC) && (_MSC_VER < 1300))
+            << buff;
+#else
+        << frac_sec;
+#endif
+      }
+    }// else
+    return ss.str();
+  }
+  //! Time duration in ISO 8601 format -hhmmss.fffffff. Example: 10:09:03.0123456
+  /*!\ingroup time_format
+   */
+  inline std::string to_iso_string(time_duration td){
+    return to_iso_string_type<char>(td);
+  }
+
+  //! Time to simple format CCYY-mmm-dd hh:mm:ss.fffffff
+  /*!\ingroup time_format
+   */
+  template<class charT>
+  inline std::basic_string<charT> to_simple_string_type(ptime t)
+  {
+    // can't use this w/gcc295, no to_simple_string_type<>(td) available
+    std::basic_string<charT> ts = gregorian::to_simple_string_type<charT>(t.date());// + " ";
+    if(!t.time_of_day().is_special()) {
+      charT space = ' ';
+      return ts + space + to_simple_string_type<charT>(t.time_of_day());
+    }
+    else {
+      return ts;
+    }
+  }
+  inline std::string to_simple_string(ptime t){
+    return to_simple_string_type<char>(t);
+  }
+
+  // function called by wrapper functions to_*_string(time_period)
+  // & to_*_wstring(time_period)
+  template<class charT>
+  inline std::basic_string<charT> to_simple_string_type(time_period tp)
+  {
+    charT beg = '[', mid = '/', end = ']';
+    std::basic_string<charT> d1(to_simple_string_type<charT>(tp.begin()));
+    std::basic_string<charT> d2(to_simple_string_type<charT>(tp.last()));
+    return std::basic_string<charT>(beg + d1 + mid + d2 + end);
+  }
+  //! Convert to string of form [YYYY-mmm-DD HH:MM::SS.ffffff/YYYY-mmm-DD HH:MM::SS.fffffff]
+  /*!\ingroup time_format
+   */
+  inline std::string to_simple_string(time_period tp){
+    return to_simple_string_type<char>(tp);
+  }
+
+  // function called by wrapper functions to_*_string(time_period)
+  // & to_*_wstring(time_period)
+  template<class charT>
+  inline std::basic_string<charT> to_iso_string_type(ptime t)
+  {
+    std::basic_string<charT> ts = gregorian::to_iso_string_type<charT>(t.date());// + "T";
+    if(!t.time_of_day().is_special()) {
+      charT sep = 'T';
+      return ts + sep + to_iso_string_type<charT>(t.time_of_day());
+    }
+    else {
+      return ts;
+    }
+  }
+  //! Convert ISO 8601 short form YYYYMMDDTHHMMSS where T is the date-time separator
+  /*!\ingroup time_format
+   */
+  inline std::string to_iso_string(ptime t){
+    return to_iso_string_type<char>(t);
+  }
+
+
+  // function called by wrapper functions to_*_string(time_period)
+  // & to_*_wstring(time_period)
+  template<class charT>
+  inline std::basic_string<charT> to_iso_extended_string_type(ptime t)
+  {
+    std::basic_string<charT> ts = gregorian::to_iso_extended_string_type<charT>(t.date());// + "T";
+    if(!t.time_of_day().is_special()) {
+      charT sep = 'T';
+      return ts + sep + to_simple_string_type<charT>(t.time_of_day());
+    }
+    else {
+      return ts;
+    }
+  }
+  //! Convert to form YYYY-MM-DDTHH:MM:SS where T is the date-time separator
+  /*!\ingroup time_format
+   */
+  inline std::string to_iso_extended_string(ptime t){
+    return to_iso_extended_string_type<char>(t);
+  }
+
+#if !defined(BOOST_NO_STD_WSTRING)
+  //! Time duration to wstring -hh::mm::ss.fffffff. Example: 10:09:03.0123456
+  /*!\ingroup time_format
+   */
+  inline std::wstring to_simple_wstring(time_duration td) {
+    return to_simple_string_type<wchar_t>(td);
+  }
+  //! Time duration in ISO 8601 format -hhmmss.fffffff. Example: 10:09:03.0123456
+  /*!\ingroup time_format
+   */
+  inline std::wstring to_iso_wstring(time_duration td){
+    return to_iso_string_type<wchar_t>(td);
+  }
+    inline std::wstring to_simple_wstring(ptime t){
+    return to_simple_string_type<wchar_t>(t);
+  }
+  //! Convert to wstring of form [YYYY-mmm-DD HH:MM::SS.ffffff/YYYY-mmm-DD HH:MM::SS.fffffff]
+  /*!\ingroup time_format
+   */
+  inline std::wstring to_simple_wstring(time_period tp){
+    return to_simple_string_type<wchar_t>(tp);
+  }
+  //! Convert ISO 8601 short form YYYYMMDDTHHMMSS where T is the date-time separator
+  /*!\ingroup time_format
+   */
+  inline std::wstring to_iso_wstring(ptime t){
+    return to_iso_string_type<wchar_t>(t);
+  }
+  //! Convert to form YYYY-MM-DDTHH:MM:SS where T is the date-time separator
+  /*!\ingroup time_format
+   */
+  inline std::wstring to_iso_extended_wstring(ptime t){
+    return to_iso_extended_string_type<wchar_t>(t);
+  }
+
+#endif // BOOST_NO_STD_WSTRING
+
+
+} } //namespace posix_time
+
+
+#endif
+