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#ifndef DATE_TIME_POSIX_TIME_IO_HPP__
#define DATE_TIME_POSIX_TIME_IO_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: Jeff Garland, Bart Garst
* $Date: 2008-11-13 14:05:31 -0500 (Thu, 13 Nov 2008) $
*/
#include <locale>
#include <iostream>
#include <iterator> // i/ostreambuf_iterator
#include <boost/io/ios_state.hpp>
#include <boost/date_time/time_facet.hpp>
#include <boost/date_time/period_formatter.hpp>
#include <boost/date_time/posix_time/ptime.hpp>
#include <boost/date_time/posix_time/time_period.hpp>
#include <boost/date_time/posix_time/posix_time_duration.hpp>
#include <boost/date_time/posix_time/conversion.hpp> // to_tm will be needed in the facets
namespace boost {
namespace posix_time {
//! wptime_facet is depricated and will be phased out. use wtime_facet instead
//typedef boost::date_time::time_facet<ptime, wchar_t> wptime_facet;
//! ptime_facet is depricated and will be phased out. use time_facet instead
//typedef boost::date_time::time_facet<ptime, char> ptime_facet;
//! wptime_input_facet is depricated and will be phased out. use wtime_input_facet instead
//typedef boost::date_time::time_input_facet<ptime,wchar_t> wptime_input_facet;
//! ptime_input_facet is depricated and will be phased out. use time_input_facet instead
//typedef boost::date_time::time_input_facet<ptime,char> ptime_input_facet;
typedef boost::date_time::time_facet<ptime, wchar_t> wtime_facet;
typedef boost::date_time::time_facet<ptime, char> time_facet;
typedef boost::date_time::time_input_facet<ptime, wchar_t> wtime_input_facet;
typedef boost::date_time::time_input_facet<ptime, char> time_input_facet;
template <class CharT, class TraitsT>
inline
std::basic_ostream<CharT, TraitsT>&
operator<<(std::basic_ostream<CharT, TraitsT>& os,
const ptime& p) {
boost::io::ios_flags_saver iflags(os);
typedef boost::date_time::time_facet<ptime, CharT> custom_ptime_facet;
typedef std::time_put<CharT> std_ptime_facet;
std::ostreambuf_iterator<CharT> oitr(os);
if (std::has_facet<custom_ptime_facet>(os.getloc()))
std::use_facet<custom_ptime_facet>(os.getloc()).put(oitr, os, os.fill(), p);
else {
//instantiate a custom facet for dealing with times since the user
//has not put one in the stream so far. This is for efficiency
//since we would always need to reconstruct for every time period
//if the locale did not already exist. Of course this will be overridden
//if the user imbues as some later point.
custom_ptime_facet* f = new custom_ptime_facet();
std::locale l = std::locale(os.getloc(), f);
os.imbue(l);
f->put(oitr, os, os.fill(), p);
}
return os;
}
//! input operator for ptime
template <class CharT, class Traits>
inline
std::basic_istream<CharT, Traits>&
operator>>(std::basic_istream<CharT, Traits>& is, ptime& pt)
{
boost::io::ios_flags_saver iflags(is);
typename std::basic_istream<CharT, Traits>::sentry strm_sentry(is, false);
if (strm_sentry) {
try {
typedef typename date_time::time_input_facet<ptime, CharT> time_input_facet;
std::istreambuf_iterator<CharT,Traits> sit(is), str_end;
if(std::has_facet<time_input_facet>(is.getloc())) {
std::use_facet<time_input_facet>(is.getloc()).get(sit, str_end, is, pt);
}
else {
time_input_facet* f = new time_input_facet();
std::locale l = std::locale(is.getloc(), f);
is.imbue(l);
f->get(sit, str_end, is, pt);
}
}
catch(...) {
// mask tells us what exceptions are turned on
std::ios_base::iostate exception_mask = is.exceptions();
// if the user wants exceptions on failbit, we'll rethrow our
// date_time exception & set the failbit
if(std::ios_base::failbit & exception_mask) {
try { is.setstate(std::ios_base::failbit); }
catch(std::ios_base::failure&) {} // ignore this one
throw; // rethrow original exception
}
else {
// if the user want's to fail quietly, we simply set the failbit
is.setstate(std::ios_base::failbit);
}
}
}
return is;
}
template <class CharT, class TraitsT>
inline
std::basic_ostream<CharT, TraitsT>&
operator<<(std::basic_ostream<CharT, TraitsT>& os,
const boost::posix_time::time_period& p) {
boost::io::ios_flags_saver iflags(os);
typedef boost::date_time::time_facet<ptime, CharT> custom_ptime_facet;
typedef std::time_put<CharT> std_time_facet;
std::ostreambuf_iterator<CharT> oitr(os);
if (std::has_facet<custom_ptime_facet>(os.getloc())) {
std::use_facet<custom_ptime_facet>(os.getloc()).put(oitr, os, os.fill(), p);
}
else {
//instantiate a custom facet for dealing with periods since the user
//has not put one in the stream so far. This is for efficiency
//since we would always need to reconstruct for every time period
//if the local did not already exist. Of course this will be overridden
//if the user imbues as some later point.
custom_ptime_facet* f = new custom_ptime_facet();
std::locale l = std::locale(os.getloc(), f);
os.imbue(l);
f->put(oitr, os, os.fill(), p);
}
return os;
}
//! input operator for time_period
template <class CharT, class Traits>
inline
std::basic_istream<CharT, Traits>&
operator>>(std::basic_istream<CharT, Traits>& is, time_period& tp)
{
boost::io::ios_flags_saver iflags(is);
typename std::basic_istream<CharT, Traits>::sentry strm_sentry(is, false);
if (strm_sentry) {
try {
typedef typename date_time::time_input_facet<ptime, CharT> time_input_facet;
std::istreambuf_iterator<CharT,Traits> sit(is), str_end;
if(std::has_facet<time_input_facet>(is.getloc())) {
std::use_facet<time_input_facet>(is.getloc()).get(sit, str_end, is, tp);
}
else {
time_input_facet* f = new time_input_facet();
std::locale l = std::locale(is.getloc(), f);
is.imbue(l);
f->get(sit, str_end, is, tp);
}
}
catch(...) {
std::ios_base::iostate exception_mask = is.exceptions();
if(std::ios_base::failbit & exception_mask) {
try { is.setstate(std::ios_base::failbit); }
catch(std::ios_base::failure&) {}
throw; // rethrow original exception
}
else {
is.setstate(std::ios_base::failbit);
}
}
}
return is;
}
//! ostream operator for posix_time::time_duration
// todo fix to use facet -- place holder for now...
template <class CharT, class Traits>
inline
std::basic_ostream<CharT, Traits>&
operator<<(std::basic_ostream<CharT, Traits>& os, const time_duration& td)
{
boost::io::ios_flags_saver iflags(os);
typedef boost::date_time::time_facet<ptime, CharT> custom_ptime_facet;
typedef std::time_put<CharT> std_ptime_facet;
std::ostreambuf_iterator<CharT> oitr(os);
if (std::has_facet<custom_ptime_facet>(os.getloc()))
std::use_facet<custom_ptime_facet>(os.getloc()).put(oitr, os, os.fill(), td);
else {
//instantiate a custom facet for dealing with times since the user
//has not put one in the stream so far. This is for efficiency
//since we would always need to reconstruct for every time period
//if the locale did not already exist. Of course this will be overridden
//if the user imbues as some later point.
custom_ptime_facet* f = new custom_ptime_facet();
std::locale l = std::locale(os.getloc(), f);
os.imbue(l);
f->put(oitr, os, os.fill(), td);
}
return os;
}
//! input operator for time_duration
template <class CharT, class Traits>
inline
std::basic_istream<CharT, Traits>&
operator>>(std::basic_istream<CharT, Traits>& is, time_duration& td)
{
boost::io::ios_flags_saver iflags(is);
typename std::basic_istream<CharT, Traits>::sentry strm_sentry(is, false);
if (strm_sentry) {
try {
typedef typename date_time::time_input_facet<ptime, CharT> time_input_facet;
std::istreambuf_iterator<CharT,Traits> sit(is), str_end;
if(std::has_facet<time_input_facet>(is.getloc())) {
std::use_facet<time_input_facet>(is.getloc()).get(sit, str_end, is, td);
}
else {
time_input_facet* f = new time_input_facet();
std::locale l = std::locale(is.getloc(), f);
is.imbue(l);
f->get(sit, str_end, is, td);
}
}
catch(...) {
std::ios_base::iostate exception_mask = is.exceptions();
if(std::ios_base::failbit & exception_mask) {
try { is.setstate(std::ios_base::failbit); }
catch(std::ios_base::failure&) {}
throw; // rethrow original exception
}
else {
is.setstate(std::ios_base::failbit);
}
}
}
return is;
}
} } // namespaces
#endif // DATE_TIME_POSIX_TIME_IO_HPP__
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