You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and dots ('.'), can be up to 35 characters long. Letters must be lowercase.
1367 lines
57 KiB
1367 lines
57 KiB
|
|
#ifndef _DATE_TIME_FACET__HPP__ |
|
#define _DATE_TIME_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: 2011-11-13 01:10:55 -0500 (Sun, 13 Nov 2011) $ |
|
*/ |
|
|
|
#include <cctype> |
|
#include <locale> |
|
#include <limits> |
|
#include <string> |
|
#include <sstream> |
|
#include <iomanip> |
|
#include <iterator> // i/ostreambuf_iterator |
|
#include <exception> |
|
#include <boost/assert.hpp> |
|
#include <boost/lexical_cast.hpp> |
|
#include <boost/throw_exception.hpp> |
|
#include <boost/range/as_literal.hpp> |
|
#include <boost/algorithm/string/erase.hpp> |
|
#include <boost/algorithm/string/replace.hpp> |
|
#include <boost/date_time/compiler_config.hpp> |
|
#include <boost/date_time/date_facet.hpp> |
|
#include <boost/date_time/string_convert.hpp> |
|
#include <boost/date_time/special_defs.hpp> |
|
#include <boost/date_time/time_resolution_traits.hpp> // absolute_value |
|
|
|
namespace boost { |
|
namespace date_time { |
|
|
|
template <class CharT> |
|
struct time_formats { |
|
public: |
|
typedef CharT char_type; |
|
static const char_type fractional_seconds_format[3]; // f |
|
static const char_type fractional_seconds_or_none_format[3]; // F |
|
static const char_type seconds_with_fractional_seconds_format[3]; // s |
|
static const char_type seconds_format[3]; // S |
|
static const char_type hours_format[3]; // H |
|
static const char_type unrestricted_hours_format[3]; // O |
|
static const char_type full_24_hour_time_format[3]; // T |
|
static const char_type full_24_hour_time_expanded_format[9]; // HH:MM:SS |
|
static const char_type short_24_hour_time_format[3]; // R |
|
static const char_type short_24_hour_time_expanded_format[6]; // HH:MM |
|
static const char_type standard_format[9]; // x X |
|
static const char_type zone_abbrev_format[3]; // z |
|
static const char_type zone_name_format[3]; // Z |
|
static const char_type zone_iso_format[3]; // q |
|
static const char_type zone_iso_extended_format[3]; // Q |
|
static const char_type posix_zone_string_format[4]; // ZP |
|
static const char_type duration_sign_negative_only[3]; // - |
|
static const char_type duration_sign_always[3]; // + |
|
static const char_type duration_seperator[2]; |
|
static const char_type negative_sign[2]; //- |
|
static const char_type positive_sign[2]; //+ |
|
static const char_type iso_time_format_specifier[18]; |
|
static const char_type iso_time_format_extended_specifier[22]; |
|
//default ptime format is YYYY-Mon-DD HH:MM:SS[.fff...][ zzz] |
|
static const char_type default_time_format[23]; |
|
// default_time_input_format uses a posix_time_zone_string instead of a time zone abbrev |
|
static const char_type default_time_input_format[24]; |
|
//default time_duration format is HH:MM:SS[.fff...] |
|
static const char_type default_time_duration_format[11]; |
|
}; |
|
|
|
template <class CharT> |
|
const typename time_formats<CharT>::char_type |
|
time_formats<CharT>::fractional_seconds_format[3] = {'%','f'}; |
|
|
|
template <class CharT> |
|
const typename time_formats<CharT>::char_type |
|
time_formats<CharT>::fractional_seconds_or_none_format[3] = {'%','F'}; |
|
|
|
template <class CharT> |
|
const typename time_formats<CharT>::char_type |
|
time_formats<CharT>::seconds_with_fractional_seconds_format[3] = {'%','s'}; |
|
|
|
template <class CharT> |
|
const typename time_formats<CharT>::char_type |
|
time_formats<CharT>::seconds_format[3] = {'%','S'}; |
|
|
|
template <class CharT> |
|
const typename time_formats<CharT>::char_type |
|
time_formats<CharT>::hours_format[3] = {'%','H'}; |
|
|
|
template <class CharT> |
|
const typename time_formats<CharT>::char_type |
|
time_formats<CharT>::unrestricted_hours_format[3] = {'%','O'}; |
|
|
|
template <class CharT> |
|
const typename time_formats<CharT>::char_type |
|
time_formats<CharT>::full_24_hour_time_format[3] = {'%','T'}; |
|
|
|
template <class CharT> |
|
const typename time_formats<CharT>::char_type |
|
time_formats<CharT>::full_24_hour_time_expanded_format[9] = |
|
{'%','H',':','%','M',':','%','S'}; |
|
|
|
template <class CharT> |
|
const typename time_formats<CharT>::char_type |
|
time_formats<CharT>::short_24_hour_time_format[3] = {'%','R'}; |
|
|
|
template <class CharT> |
|
const typename time_formats<CharT>::char_type |
|
time_formats<CharT>::short_24_hour_time_expanded_format[6] = |
|
{'%','H',':','%','M'}; |
|
|
|
template <class CharT> |
|
const typename time_formats<CharT>::char_type |
|
//time_formats<CharT>::standard_format[5] = {'%','c',' ','%','z'}; |
|
time_formats<CharT>::standard_format[9] = {'%','x',' ','%','X',' ','%','z'}; |
|
|
|
template <class CharT> |
|
const typename time_formats<CharT>::char_type |
|
time_formats<CharT>::zone_abbrev_format[3] = {'%','z'}; |
|
|
|
template <class CharT> |
|
const typename time_formats<CharT>::char_type |
|
time_formats<CharT>::zone_name_format[3] = {'%','Z'}; |
|
|
|
template <class CharT> |
|
const typename time_formats<CharT>::char_type |
|
time_formats<CharT>::zone_iso_format[3] = {'%','q'}; |
|
|
|
template <class CharT> |
|
const typename time_formats<CharT>::char_type |
|
time_formats<CharT>::zone_iso_extended_format[3] ={'%','Q'}; |
|
|
|
template <class CharT> |
|
const typename time_formats<CharT>::char_type |
|
time_formats<CharT>::posix_zone_string_format[4] ={'%','Z','P'}; |
|
|
|
template <class CharT> |
|
const typename time_formats<CharT>::char_type |
|
time_formats<CharT>::duration_seperator[2] = {':'}; |
|
|
|
template <class CharT> |
|
const typename time_formats<CharT>::char_type |
|
time_formats<CharT>::negative_sign[2] = {'-'}; |
|
|
|
template <class CharT> |
|
const typename time_formats<CharT>::char_type |
|
time_formats<CharT>::positive_sign[2] = {'+'}; |
|
|
|
template <class CharT> |
|
const typename time_formats<CharT>::char_type |
|
time_formats<CharT>::duration_sign_negative_only[3] ={'%','-'}; |
|
|
|
template <class CharT> |
|
const typename time_formats<CharT>::char_type |
|
time_formats<CharT>::duration_sign_always[3] ={'%','+'}; |
|
|
|
template <class CharT> |
|
const typename time_formats<CharT>::char_type |
|
time_formats<CharT>::iso_time_format_specifier[18] = |
|
{'%', 'Y', '%', 'm', '%', 'd', 'T', |
|
'%', 'H', '%', 'M', '%', 'S', '%', 'F', '%','q' }; |
|
|
|
template <class CharT> |
|
const typename time_formats<CharT>::char_type |
|
time_formats<CharT>::iso_time_format_extended_specifier[22] = |
|
{'%', 'Y', '-', '%', 'm', '-', '%', 'd', ' ', |
|
'%', 'H', ':', '%', 'M', ':', '%', 'S', '%', 'F','%','Q'}; |
|
|
|
template <class CharT> |
|
const typename time_formats<CharT>::char_type |
|
time_formats<CharT>::default_time_format[23] = |
|
{'%','Y','-','%','b','-','%','d',' ', |
|
'%','H',':','%','M',':','%','S','%','F',' ','%','z'}; |
|
|
|
template <class CharT> |
|
const typename time_formats<CharT>::char_type |
|
time_formats<CharT>::default_time_input_format[24] = |
|
{'%','Y','-','%','b','-','%','d',' ', |
|
'%','H',':','%','M',':','%','S','%','F',' ','%','Z','P'}; |
|
|
|
template <class CharT> |
|
const typename time_formats<CharT>::char_type |
|
time_formats<CharT>::default_time_duration_format[11] = |
|
{'%','O',':','%','M',':','%','S','%','F'}; |
|
|
|
|
|
|
|
/*! Facet used for format-based output of time types |
|
* This class provides for the use of format strings to output times. In addition |
|
* to the flags for formatting date elements, the following are the allowed format flags: |
|
* - %x %X => default format - enables addition of more flags to default (ie. "%x %X %z") |
|
* - %f => fractional seconds ".123456" |
|
* - %F => fractional seconds or none: like frac sec but empty if frac sec == 0 |
|
* - %s => seconds w/ fractional sec "02.123" (this is the same as "%S%f) |
|
* - %S => seconds "02" |
|
* - %z => abbreviated time zone "EDT" |
|
* - %Z => full time zone name "Eastern Daylight Time" |
|
*/ |
|
template <class time_type, |
|
class CharT, |
|
class OutItrT = std::ostreambuf_iterator<CharT, std::char_traits<CharT> > > |
|
class time_facet : |
|
public boost::date_time::date_facet<typename time_type::date_type , CharT, OutItrT> { |
|
typedef time_formats< CharT > formats_type; |
|
public: |
|
typedef typename time_type::date_type date_type; |
|
typedef typename time_type::time_duration_type time_duration_type; |
|
typedef boost::date_time::period<time_type,time_duration_type> period_type; |
|
typedef boost::date_time::date_facet<typename time_type::date_type, CharT, OutItrT> base_type; |
|
typedef typename base_type::string_type string_type; |
|
typedef typename base_type::char_type char_type; |
|
typedef typename base_type::period_formatter_type period_formatter_type; |
|
typedef typename base_type::special_values_formatter_type special_values_formatter_type; |
|
typedef typename base_type::date_gen_formatter_type date_gen_formatter_type; |
|
static const char_type* fractional_seconds_format; // %f |
|
static const char_type* fractional_seconds_or_none_format; // %F |
|
static const char_type* seconds_with_fractional_seconds_format; // %s |
|
static const char_type* seconds_format; // %S |
|
static const char_type* hours_format; // %H |
|
static const char_type* unrestricted_hours_format; // %O |
|
static const char_type* standard_format; // %x X |
|
static const char_type* zone_abbrev_format; // %z |
|
static const char_type* zone_name_format; // %Z |
|
static const char_type* zone_iso_format; // %q |
|
static const char_type* zone_iso_extended_format; // %Q |
|
static const char_type* posix_zone_string_format; // %ZP |
|
static const char_type* duration_seperator; |
|
static const char_type* duration_sign_always; // %+ |
|
static const char_type* duration_sign_negative_only; // %- |
|
static const char_type* negative_sign; //- |
|
static const char_type* positive_sign; //+ |
|
static const char_type* iso_time_format_specifier; |
|
static const char_type* iso_time_format_extended_specifier; |
|
|
|
//default ptime format is YYYY-Mon-DD HH:MM:SS[.fff...][ zzz] |
|
static const char_type* default_time_format; |
|
//default time_duration format is HH:MM:SS[.fff...] |
|
static const char_type* default_time_duration_format; |
|
static std::locale::id id; |
|
|
|
#if defined (__SUNPRO_CC) && defined (_RWSTD_VER) |
|
std::locale::id& __get_id (void) const { return id; } |
|
#endif |
|
|
|
//! sets default formats for ptime, local_date_time, and time_duration |
|
explicit time_facet(::size_t ref_arg = 0) |
|
: base_type(default_time_format, period_formatter_type(), special_values_formatter_type(), date_gen_formatter_type(), ref_arg), |
|
m_time_duration_format(string_type(duration_sign_negative_only) + default_time_duration_format) |
|
{} |
|
|
|
//! Construct the facet with an explicitly specified format |
|
explicit time_facet(const char_type* format_arg, |
|
period_formatter_type period_formatter_arg = period_formatter_type(), |
|
const special_values_formatter_type& special_value_formatter = special_values_formatter_type(), |
|
date_gen_formatter_type dg_formatter = date_gen_formatter_type(), |
|
::size_t ref_arg = 0) |
|
: base_type(format_arg, |
|
period_formatter_arg, |
|
special_value_formatter, |
|
dg_formatter, |
|
ref_arg), |
|
m_time_duration_format(string_type(duration_sign_negative_only) + default_time_duration_format) |
|
{} |
|
|
|
//! Changes format for time_duration |
|
void time_duration_format(const char_type* const format) |
|
{ |
|
m_time_duration_format = format; |
|
} |
|
|
|
virtual void set_iso_format() |
|
{ |
|
this->m_format = iso_time_format_specifier; |
|
} |
|
virtual void set_iso_extended_format() |
|
{ |
|
this->m_format = iso_time_format_extended_specifier; |
|
} |
|
|
|
OutItrT put(OutItrT next_arg, |
|
std::ios_base& ios_arg, |
|
char_type fill_arg, |
|
const time_type& time_arg) const |
|
{ |
|
if (time_arg.is_special()) { |
|
return this->do_put_special(next_arg, ios_arg, fill_arg, |
|
time_arg.date().as_special()); |
|
} |
|
string_type local_format(this->m_format); |
|
|
|
// %T and %R have to be replaced here since they are not standard |
|
boost::algorithm::replace_all(local_format, |
|
boost::as_literal(formats_type::full_24_hour_time_format), |
|
boost::as_literal(formats_type::full_24_hour_time_expanded_format)); |
|
boost::algorithm::replace_all(local_format, |
|
boost::as_literal(formats_type::short_24_hour_time_format), |
|
boost::as_literal(formats_type::short_24_hour_time_expanded_format)); |
|
|
|
string_type frac_str; |
|
if (local_format.find(seconds_with_fractional_seconds_format) != string_type::npos) { |
|
// replace %s with %S.nnn |
|
frac_str = |
|
fractional_seconds_as_string(time_arg.time_of_day(), false); |
|
char_type sep = std::use_facet<std::numpunct<char_type> >(ios_arg.getloc()).decimal_point(); |
|
|
|
string_type replace_string(seconds_format); |
|
replace_string += sep; |
|
replace_string += frac_str; |
|
boost::algorithm::replace_all(local_format, |
|
seconds_with_fractional_seconds_format, |
|
replace_string); |
|
} |
|
/* NOTE: replacing posix_zone_string_format must be done BEFORE |
|
* zone_name_format: "%ZP" & "%Z", if Z is checked first it will |
|
* incorrectly replace a zone_name where a posix_string should go */ |
|
if (local_format.find(posix_zone_string_format) != string_type::npos) { |
|
if(time_arg.zone_abbrev().empty()) { |
|
// if zone_abbrev() returns an empty string, we want to |
|
// erase posix_zone_string_format from format |
|
boost::algorithm::erase_all(local_format, posix_zone_string_format); |
|
} |
|
else{ |
|
boost::algorithm::replace_all(local_format, |
|
posix_zone_string_format, |
|
time_arg.zone_as_posix_string()); |
|
} |
|
} |
|
if (local_format.find(zone_name_format) != string_type::npos) { |
|
if(time_arg.zone_name().empty()) { |
|
/* TODO: this'll probably create problems if a user places |
|
* the zone_*_format flag in the format with a ptime. This |
|
* code removes the flag from the default formats */ |
|
|
|
// if zone_name() returns an empty string, we want to |
|
// erase zone_name_format & one preceeding space |
|
std::basic_ostringstream<char_type> ss; |
|
ss << ' ' << zone_name_format; |
|
boost::algorithm::erase_all(local_format, ss.str()); |
|
} |
|
else{ |
|
boost::algorithm::replace_all(local_format, |
|
zone_name_format, |
|
time_arg.zone_name()); |
|
} |
|
} |
|
if (local_format.find(zone_abbrev_format) != string_type::npos) { |
|
if(time_arg.zone_abbrev(false).empty()) { |
|
/* TODO: this'll probably create problems if a user places |
|
* the zone_*_format flag in the format with a ptime. This |
|
* code removes the flag from the default formats */ |
|
|
|
// if zone_abbrev() returns an empty string, we want to |
|
// erase zone_abbrev_format & one preceeding space |
|
std::basic_ostringstream<char_type> ss; |
|
ss << ' ' << zone_abbrev_format; |
|
boost::algorithm::erase_all(local_format, ss.str()); |
|
} |
|
else{ |
|
boost::algorithm::replace_all(local_format, |
|
zone_abbrev_format, |
|
time_arg.zone_abbrev(false)); |
|
} |
|
} |
|
if (local_format.find(zone_iso_extended_format) != string_type::npos) { |
|
if(time_arg.zone_name(true).empty()) { |
|
/* TODO: this'll probably create problems if a user places |
|
* the zone_*_format flag in the format with a ptime. This |
|
* code removes the flag from the default formats */ |
|
|
|
// if zone_name() returns an empty string, we want to |
|
// erase zone_iso_extended_format from format |
|
boost::algorithm::erase_all(local_format, zone_iso_extended_format); |
|
} |
|
else{ |
|
boost::algorithm::replace_all(local_format, |
|
zone_iso_extended_format, |
|
time_arg.zone_name(true)); |
|
} |
|
} |
|
|
|
if (local_format.find(zone_iso_format) != string_type::npos) { |
|
if(time_arg.zone_abbrev(true).empty()) { |
|
/* TODO: this'll probably create problems if a user places |
|
* the zone_*_format flag in the format with a ptime. This |
|
* code removes the flag from the default formats */ |
|
|
|
// if zone_abbrev() returns an empty string, we want to |
|
// erase zone_iso_format from format |
|
boost::algorithm::erase_all(local_format, zone_iso_format); |
|
} |
|
else{ |
|
boost::algorithm::replace_all(local_format, |
|
zone_iso_format, |
|
time_arg.zone_abbrev(true)); |
|
} |
|
} |
|
if (local_format.find(fractional_seconds_format) != string_type::npos) { |
|
// replace %f with nnnnnnn |
|
if (frac_str.empty()) { |
|
frac_str = fractional_seconds_as_string(time_arg.time_of_day(), false); |
|
} |
|
boost::algorithm::replace_all(local_format, |
|
fractional_seconds_format, |
|
frac_str); |
|
} |
|
|
|
if (local_format.find(fractional_seconds_or_none_format) != string_type::npos) { |
|
// replace %F with nnnnnnn or nothing if fs == 0 |
|
frac_str = |
|
fractional_seconds_as_string(time_arg.time_of_day(), true); |
|
if (frac_str.size()) { |
|
char_type sep = std::use_facet<std::numpunct<char_type> >(ios_arg.getloc()).decimal_point(); |
|
string_type replace_string; |
|
replace_string += sep; |
|
replace_string += frac_str; |
|
boost::algorithm::replace_all(local_format, |
|
fractional_seconds_or_none_format, |
|
replace_string); |
|
} |
|
else { |
|
boost::algorithm::erase_all(local_format, |
|
fractional_seconds_or_none_format); |
|
} |
|
} |
|
|
|
return this->do_put_tm(next_arg, ios_arg, fill_arg, |
|
to_tm(time_arg), local_format); |
|
} |
|
|
|
//! put function for time_duration |
|
OutItrT put(OutItrT next_arg, |
|
std::ios_base& ios_arg, |
|
char_type fill_arg, |
|
const time_duration_type& time_dur_arg) const |
|
{ |
|
if (time_dur_arg.is_special()) { |
|
return this->do_put_special(next_arg, ios_arg, fill_arg, |
|
time_dur_arg.get_rep().as_special()); |
|
} |
|
|
|
string_type format(m_time_duration_format); |
|
if (time_dur_arg.is_negative()) { |
|
// replace %- with minus sign. Should we use the numpunct facet? |
|
boost::algorithm::replace_all(format, |
|
duration_sign_negative_only, |
|
negative_sign); |
|
// remove all the %+ in the string with '-' |
|
boost::algorithm::replace_all(format, |
|
duration_sign_always, |
|
negative_sign); |
|
} |
|
else { //duration is positive |
|
// remove all the %- combos from the string |
|
boost::algorithm::erase_all(format, duration_sign_negative_only); |
|
// remove all the %+ in the string with '+' |
|
boost::algorithm::replace_all(format, |
|
duration_sign_always, |
|
positive_sign); |
|
} |
|
|
|
// %T and %R have to be replaced here since they are not standard |
|
boost::algorithm::replace_all(format, |
|
boost::as_literal(formats_type::full_24_hour_time_format), |
|
boost::as_literal(formats_type::full_24_hour_time_expanded_format)); |
|
boost::algorithm::replace_all(format, |
|
boost::as_literal(formats_type::short_24_hour_time_format), |
|
boost::as_literal(formats_type::short_24_hour_time_expanded_format)); |
|
|
|
/* |
|
* It is possible for a time duration to span more then 24 hours. |
|
* Standard time_put::put is obliged to behave the same as strftime |
|
* (See ISO 14882-2003 22.2.5.3.1 par. 1) and strftime's behavior is |
|
* unspecified for the case when tm_hour field is outside 0-23 range |
|
* (See ISO 9899-1999 7.23.3.5 par. 3). So we must output %H and %O |
|
* here ourself. |
|
*/ |
|
string_type hours_str; |
|
if (format.find(unrestricted_hours_format) != string_type::npos) { |
|
hours_str = hours_as_string(time_dur_arg); |
|
boost::algorithm::replace_all(format, unrestricted_hours_format, hours_str); |
|
} |
|
// We still have to process restricted hours format specifier. In order to |
|
// support parseability of durations in ISO format (%H%M%S), we'll have to |
|
// restrict the stringified hours length to 2 characters. |
|
if (format.find(hours_format) != string_type::npos) { |
|
if (hours_str.empty()) |
|
hours_str = hours_as_string(time_dur_arg); |
|
BOOST_ASSERT(hours_str.length() <= 2); |
|
boost::algorithm::replace_all(format, hours_format, hours_str); |
|
} |
|
|
|
string_type frac_str; |
|
if (format.find(seconds_with_fractional_seconds_format) != string_type::npos) { |
|
// replace %s with %S.nnn |
|
frac_str = |
|
fractional_seconds_as_string(time_dur_arg, false); |
|
char_type sep = std::use_facet<std::numpunct<char_type> >(ios_arg.getloc()).decimal_point(); |
|
|
|
string_type replace_string(seconds_format); |
|
replace_string += sep; |
|
replace_string += frac_str; |
|
boost::algorithm::replace_all(format, |
|
seconds_with_fractional_seconds_format, |
|
replace_string); |
|
} |
|
if (format.find(fractional_seconds_format) != string_type::npos) { |
|
// replace %f with nnnnnnn |
|
if (!frac_str.size()) { |
|
frac_str = fractional_seconds_as_string(time_dur_arg, false); |
|
} |
|
boost::algorithm::replace_all(format, |
|
fractional_seconds_format, |
|
frac_str); |
|
} |
|
|
|
if (format.find(fractional_seconds_or_none_format) != string_type::npos) { |
|
// replace %F with nnnnnnn or nothing if fs == 0 |
|
frac_str = |
|
fractional_seconds_as_string(time_dur_arg, true); |
|
if (frac_str.size()) { |
|
char_type sep = std::use_facet<std::numpunct<char_type> >(ios_arg.getloc()).decimal_point(); |
|
string_type replace_string; |
|
replace_string += sep; |
|
replace_string += frac_str; |
|
boost::algorithm::replace_all(format, |
|
fractional_seconds_or_none_format, |
|
replace_string); |
|
} |
|
else { |
|
boost::algorithm::erase_all(format, |
|
fractional_seconds_or_none_format); |
|
} |
|
} |
|
|
|
return this->do_put_tm(next_arg, ios_arg, fill_arg, |
|
to_tm(time_dur_arg), format); |
|
} |
|
|
|
OutItrT put(OutItrT next, std::ios_base& ios_arg, |
|
char_type fill, const period_type& p) const |
|
{ |
|
return this->m_period_formatter.put_period(next, ios_arg, fill,p,*this); |
|
} |
|
|
|
|
|
protected: |
|
|
|
static |
|
string_type |
|
fractional_seconds_as_string(const time_duration_type& time_arg, |
|
bool null_when_zero) |
|
{ |
|
typename time_duration_type::fractional_seconds_type frac_sec = |
|
time_arg.fractional_seconds(); |
|
|
|
if (null_when_zero && (frac_sec == 0)) { |
|
return string_type(); |
|
} |
|
|
|
//make sure there is no sign |
|
return integral_as_string( |
|
date_time::absolute_value(frac_sec), |
|
time_duration_type::num_fractional_digits()); |
|
} |
|
|
|
static |
|
string_type |
|
hours_as_string(const time_duration_type& time_arg, int width = 2) |
|
{ |
|
return integral_as_string(date_time::absolute_value(time_arg.hours()), width); |
|
} |
|
|
|
template< typename IntT > |
|
static |
|
string_type |
|
integral_as_string(IntT val, int width = 2) |
|
{ |
|
std::basic_ostringstream<char_type> ss; |
|
ss.imbue(std::locale::classic()); // don't want any formatting |
|
ss << std::setw(width) |
|
<< std::setfill(static_cast<char_type>('0')); |
|
#if (defined(BOOST_MSVC) && (_MSC_VER < 1300)) |
|
// JDG [7/6/02 VC++ compatibility] |
|
char_type buff[34]; |
|
ss << _i64toa(static_cast<boost::int64_t>(val), buff, 10); |
|
#else |
|
ss << val; |
|
#endif |
|
return ss.str(); |
|
} |
|
|
|
private: |
|
string_type m_time_duration_format; |
|
|
|
}; |
|
|
|
template <class time_type, class CharT, class OutItrT> |
|
std::locale::id time_facet<time_type, CharT, OutItrT>::id; |
|
|
|
template <class time_type, class CharT, class OutItrT> |
|
const typename time_facet<time_type, CharT, OutItrT>::char_type* |
|
time_facet<time_type, CharT, OutItrT>::fractional_seconds_format = time_formats<CharT>::fractional_seconds_format; |
|
|
|
template <class time_type, class CharT, class OutItrT> |
|
const typename time_facet<time_type, CharT, OutItrT>::char_type* |
|
time_facet<time_type, CharT, OutItrT>::fractional_seconds_or_none_format = time_formats<CharT>::fractional_seconds_or_none_format; |
|
|
|
template <class time_type, class CharT, class OutItrT> |
|
const typename time_facet<time_type, CharT, OutItrT>::char_type* |
|
time_facet<time_type, CharT, OutItrT>::seconds_with_fractional_seconds_format = |
|
time_formats<CharT>::seconds_with_fractional_seconds_format; |
|
|
|
|
|
template <class time_type, class CharT, class OutItrT> |
|
const typename time_facet<time_type, CharT, OutItrT>::char_type* |
|
time_facet<time_type, CharT, OutItrT>::zone_name_format = time_formats<CharT>::zone_name_format; |
|
|
|
template <class time_type, class CharT, class OutItrT> |
|
const typename time_facet<time_type, CharT, OutItrT>::char_type* |
|
time_facet<time_type, CharT, OutItrT>::zone_abbrev_format = time_formats<CharT>::zone_abbrev_format; |
|
|
|
template <class time_type, class CharT, class OutItrT> |
|
const typename time_facet<time_type, CharT, OutItrT>::char_type* |
|
time_facet<time_type, CharT, OutItrT>::zone_iso_extended_format =time_formats<CharT>::zone_iso_extended_format; |
|
|
|
template <class time_type, class CharT, class OutItrT> |
|
const typename time_facet<time_type, CharT, OutItrT>::char_type* |
|
time_facet<time_type, CharT, OutItrT>::posix_zone_string_format =time_formats<CharT>::posix_zone_string_format; |
|
|
|
template <class time_type, class CharT, class OutItrT> |
|
const typename time_facet<time_type, CharT, OutItrT>::char_type* |
|
time_facet<time_type, CharT, OutItrT>::zone_iso_format = time_formats<CharT>::zone_iso_format; |
|
|
|
template <class time_type, class CharT, class OutItrT> |
|
const typename time_facet<time_type, CharT, OutItrT>::char_type* |
|
time_facet<time_type, CharT, OutItrT>::seconds_format = time_formats<CharT>::seconds_format; |
|
|
|
template <class time_type, class CharT, class OutItrT> |
|
const typename time_facet<time_type, CharT, OutItrT>::char_type* |
|
time_facet<time_type, CharT, OutItrT>::hours_format = time_formats<CharT>::hours_format; |
|
|
|
template <class time_type, class CharT, class OutItrT> |
|
const typename time_facet<time_type, CharT, OutItrT>::char_type* |
|
time_facet<time_type, CharT, OutItrT>::unrestricted_hours_format = time_formats<CharT>::unrestricted_hours_format; |
|
|
|
template <class time_type, class CharT, class OutItrT> |
|
const typename time_facet<time_type, CharT, OutItrT>::char_type* |
|
time_facet<time_type, CharT, OutItrT>::standard_format = time_formats<CharT>::standard_format; |
|
|
|
template <class time_type, class CharT, class OutItrT> |
|
const typename time_facet<time_type, CharT, OutItrT>::char_type* |
|
time_facet<time_type, CharT, OutItrT>::duration_seperator = time_formats<CharT>::duration_seperator; |
|
|
|
template <class time_type, class CharT, class OutItrT> |
|
const typename time_facet<time_type, CharT, OutItrT>::char_type* |
|
time_facet<time_type, CharT, OutItrT>::negative_sign = time_formats<CharT>::negative_sign; |
|
|
|
template <class time_type, class CharT, class OutItrT> |
|
const typename time_facet<time_type, CharT, OutItrT>::char_type* |
|
time_facet<time_type, CharT, OutItrT>::positive_sign = time_formats<CharT>::positive_sign; |
|
|
|
template <class time_type, class CharT, class OutItrT> |
|
const typename time_facet<time_type, CharT, OutItrT>::char_type* |
|
time_facet<time_type, CharT, OutItrT>::duration_sign_negative_only = time_formats<CharT>::duration_sign_negative_only; |
|
|
|
template <class time_type, class CharT, class OutItrT> |
|
const typename time_facet<time_type, CharT, OutItrT>::char_type* |
|
time_facet<time_type, CharT, OutItrT>::duration_sign_always = time_formats<CharT>::duration_sign_always; |
|
|
|
template <class time_type, class CharT, class OutItrT> |
|
const typename time_facet<time_type,CharT, OutItrT>::char_type* |
|
time_facet<time_type,CharT, OutItrT>::iso_time_format_specifier = time_formats<CharT>::iso_time_format_specifier; |
|
|
|
template <class time_type, class CharT, class OutItrT> |
|
const typename time_facet<time_type, CharT, OutItrT>::char_type* |
|
time_facet<time_type, CharT, OutItrT>::iso_time_format_extended_specifier = time_formats<CharT>::iso_time_format_extended_specifier; |
|
|
|
template <class time_type, class CharT, class OutItrT> |
|
const typename time_facet<time_type, CharT, OutItrT>::char_type* |
|
time_facet<time_type, CharT, OutItrT>::default_time_format = |
|
time_formats<CharT>::default_time_format; |
|
|
|
template <class time_type, class CharT, class OutItrT> |
|
const typename time_facet<time_type, CharT, OutItrT>::char_type* |
|
time_facet<time_type, CharT, OutItrT>::default_time_duration_format = |
|
time_formats<CharT>::default_time_duration_format; |
|
|
|
|
|
//! Facet for format-based input. |
|
/*! |
|
*/ |
|
template <class time_type, |
|
class CharT, |
|
class InItrT = std::istreambuf_iterator<CharT, std::char_traits<CharT> > > |
|
class time_input_facet : |
|
public boost::date_time::date_input_facet<typename time_type::date_type , CharT, InItrT> { |
|
public: |
|
typedef typename time_type::date_type date_type; |
|
typedef typename time_type::time_duration_type time_duration_type; |
|
typedef typename time_duration_type::fractional_seconds_type fracional_seconds_type; |
|
typedef boost::date_time::period<time_type,time_duration_type> period_type; |
|
typedef boost::date_time::date_input_facet<typename time_type::date_type, CharT, InItrT> base_type; |
|
typedef typename base_type::duration_type date_duration_type; |
|
typedef typename base_type::year_type year_type; |
|
typedef typename base_type::month_type month_type; |
|
typedef typename base_type::day_type day_type; |
|
typedef typename base_type::string_type string_type; |
|
typedef typename string_type::const_iterator const_itr; |
|
typedef typename base_type::char_type char_type; |
|
typedef typename base_type::format_date_parser_type format_date_parser_type; |
|
typedef typename base_type::period_parser_type period_parser_type; |
|
typedef typename base_type::special_values_parser_type special_values_parser_type; |
|
typedef typename base_type::date_gen_parser_type date_gen_parser_type; |
|
typedef typename base_type::special_values_parser_type::match_results match_results; |
|
|
|
static const char_type* fractional_seconds_format; // f |
|
static const char_type* fractional_seconds_or_none_format; // F |
|
static const char_type* seconds_with_fractional_seconds_format; // s |
|
static const char_type* seconds_format; // S |
|
static const char_type* standard_format; // x X |
|
static const char_type* zone_abbrev_format; // z |
|
static const char_type* zone_name_format; // Z |
|
static const char_type* zone_iso_format; // q |
|
static const char_type* zone_iso_extended_format; // Q |
|
static const char_type* duration_seperator; |
|
static const char_type* iso_time_format_specifier; |
|
static const char_type* iso_time_format_extended_specifier; |
|
static const char_type* default_time_input_format; |
|
static const char_type* default_time_duration_format; |
|
static std::locale::id id; |
|
|
|
//! Constructor that takes a format string for a ptime |
|
explicit time_input_facet(const string_type& format, ::size_t ref_arg = 0) |
|
: base_type(format, ref_arg), |
|
m_time_duration_format(default_time_duration_format) |
|
{ } |
|
|
|
explicit time_input_facet(const string_type& format, |
|
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_arg = 0) |
|
: base_type(format, |
|
date_parser, |
|
sv_parser, |
|
per_parser, |
|
date_gen_parser, |
|
ref_arg), |
|
m_time_duration_format(default_time_duration_format) |
|
{} |
|
|
|
//! sets default formats for ptime, local_date_time, and time_duration |
|
explicit time_input_facet(::size_t ref_arg = 0) |
|
: base_type(default_time_input_format, ref_arg), |
|
m_time_duration_format(default_time_duration_format) |
|
{ } |
|
|
|
//! Set the format for time_duration |
|
void time_duration_format(const char_type* const format) { |
|
m_time_duration_format = format; |
|
} |
|
virtual void set_iso_format() |
|
{ |
|
this->m_format = iso_time_format_specifier; |
|
} |
|
virtual void set_iso_extended_format() |
|
{ |
|
this->m_format = iso_time_format_extended_specifier; |
|
} |
|
|
|
InItrT get(InItrT& sitr, |
|
InItrT& stream_end, |
|
std::ios_base& ios_arg, |
|
period_type& p) const |
|
{ |
|
p = this->m_period_parser.get_period(sitr, |
|
stream_end, |
|
ios_arg, |
|
p, |
|
time_duration_type::unit(), |
|
*this); |
|
return sitr; |
|
} |
|
|
|
//default ptime format is YYYY-Mon-DD HH:MM:SS[.fff...][ zzz] |
|
//default time_duration format is %H:%M:%S%F HH:MM:SS[.fff...] |
|
|
|
InItrT get(InItrT& sitr, |
|
InItrT& stream_end, |
|
std::ios_base& ios_arg, |
|
time_duration_type& td) const |
|
{ |
|
// skip leading whitespace |
|
while((sitr != stream_end) && std::isspace(*sitr)) { ++sitr; } |
|
|
|
bool use_current_char = false; |
|
|
|
// num_get will consume the +/-, we may need a copy if special_value |
|
char_type c = '\0'; |
|
if((sitr != stream_end) && (*sitr == '-' || *sitr == '+')) { |
|
c = *sitr; |
|
} |
|
|
|
typedef typename time_duration_type::hour_type hour_type; |
|
typedef typename time_duration_type::min_type min_type; |
|
typedef typename time_duration_type::sec_type sec_type; |
|
|
|
hour_type hour = 0; |
|
min_type min = 0; |
|
sec_type sec = 0; |
|
typename time_duration_type::fractional_seconds_type frac(0); |
|
|
|
typedef std::num_get<CharT, InItrT> num_get; |
|
if(!std::has_facet<num_get>(ios_arg.getloc())) { |
|
num_get* ng = new num_get(); |
|
std::locale loc = std::locale(ios_arg.getloc(), ng); |
|
ios_arg.imbue(loc); |
|
} |
|
|
|
const_itr itr(m_time_duration_format.begin()); |
|
while (itr != m_time_duration_format.end() && (sitr != stream_end)) { |
|
if (*itr == '%') { |
|
++itr; |
|
if (*itr != '%') { |
|
switch(*itr) { |
|
case 'O': |
|
{ |
|
// A period may span more than 24 hours. In that case the format |
|
// string should be composed with the unrestricted hours specifier. |
|
hour = var_string_to_int<hour_type, CharT>(sitr, stream_end, |
|
std::numeric_limits<hour_type>::digits10 + 1); |
|
if(hour == -1){ |
|
return check_special_value(sitr, stream_end, td, c); |
|
} |
|
break; |
|
} |
|
case 'H': |
|
{ |
|
match_results mr; |
|
hour = fixed_string_to_int<hour_type, CharT>(sitr, stream_end, mr, 2); |
|
if(hour == -1){ |
|
return check_special_value(sitr, stream_end, td, c); |
|
} |
|
break; |
|
} |
|
case 'M': |
|
{ |
|
match_results mr; |
|
min = fixed_string_to_int<min_type, CharT>(sitr, stream_end, mr, 2); |
|
if(min == -1){ |
|
return check_special_value(sitr, stream_end, td, c); |
|
} |
|
break; |
|
} |
|
case 's': |
|
case 'S': |
|
{ |
|
match_results mr; |
|
sec = fixed_string_to_int<sec_type, CharT>(sitr, stream_end, mr, 2); |
|
if(sec == -1){ |
|
return check_special_value(sitr, stream_end, td, c); |
|
} |
|
if (*itr == 'S') |
|
break; |
|
// %s is the same as %S%f so we drop through into %f |
|
} |
|
case 'f': |
|
{ |
|
// check for decimal, check special_values if missing |
|
if(*sitr == '.') { |
|
++sitr; |
|
parse_frac_type(sitr, stream_end, frac); |
|
// sitr will point to next expected char after this parsing |
|
// is complete so no need to advance it |
|
use_current_char = true; |
|
} |
|
else { |
|
return check_special_value(sitr, stream_end, td, c); |
|
} |
|
break; |
|
} |
|
case 'F': |
|
{ |
|
// check for decimal, skip if missing |
|
if(*sitr == '.') { |
|
++sitr; |
|
parse_frac_type(sitr, stream_end, frac); |
|
// sitr will point to next expected char after this parsing |
|
// is complete so no need to advance it |
|
use_current_char = true; |
|
} |
|
else { |
|
// nothing was parsed so we don't want to advance sitr |
|
use_current_char = true; |
|
} |
|
break; |
|
} |
|
default: |
|
{} // ignore what we don't understand? |
|
}// switch |
|
} |
|
else { // itr == '%', second consecutive |
|
++sitr; |
|
} |
|
|
|
++itr; //advance past format specifier |
|
} |
|
else { //skip past chars in format and in buffer |
|
++itr; |
|
// set use_current_char when sitr is already |
|
// pointing at the next character to process |
|
if (use_current_char) { |
|
use_current_char = false; |
|
} |
|
else { |
|
++sitr; |
|
} |
|
} |
|
} |
|
|
|
td = time_duration_type(hour, min, sec, frac); |
|
return sitr; |
|
} |
|
|
|
|
|
//! Parses a time object from the input stream |
|
InItrT get(InItrT& sitr, |
|
InItrT& stream_end, |
|
std::ios_base& ios_arg, |
|
time_type& t) const |
|
{ |
|
string_type tz_str; |
|
return get(sitr, stream_end, ios_arg, t, tz_str, false); |
|
} |
|
//! Expects a time_zone in the input stream |
|
InItrT get_local_time(InItrT& sitr, |
|
InItrT& stream_end, |
|
std::ios_base& ios_arg, |
|
time_type& t, |
|
string_type& tz_str) const |
|
{ |
|
return get(sitr, stream_end, ios_arg, t, tz_str, true); |
|
} |
|
|
|
protected: |
|
|
|
InItrT get(InItrT& sitr, |
|
InItrT& stream_end, |
|
std::ios_base& ios_arg, |
|
time_type& t, |
|
string_type& tz_str, |
|
bool time_is_local) const |
|
{ |
|
// skip leading whitespace |
|
while((sitr != stream_end) && std::isspace(*sitr)) { ++sitr; } |
|
|
|
bool use_current_char = false; |
|
bool use_current_format_char = false; // used whith two character flags |
|
|
|
// num_get will consume the +/-, we may need a copy if special_value |
|
char_type c = '\0'; |
|
if((sitr != stream_end) && (*sitr == '-' || *sitr == '+')) { |
|
c = *sitr; |
|
} |
|
|
|
typedef typename time_duration_type::hour_type hour_type; |
|
typedef typename time_duration_type::min_type min_type; |
|
typedef typename time_duration_type::sec_type sec_type; |
|
|
|
// time elements |
|
hour_type hour = 0; |
|
min_type min = 0; |
|
sec_type sec = 0; |
|
typename time_duration_type::fractional_seconds_type frac(0); |
|
// date elements |
|
short day_of_year(0); |
|
/* Initialized the following to their minimum values. These intermediate |
|
* objects are used so we get specific exceptions when part of the input |
|
* is unparsable. |
|
* Ex: "205-Jan-15" will throw a bad_year, "2005-Jsn-15"- bad_month, etc.*/ |
|
year_type t_year(1400); |
|
month_type t_month(1); |
|
day_type t_day(1); |
|
|
|
typedef std::num_get<CharT, InItrT> num_get; |
|
if(!std::has_facet<num_get>(ios_arg.getloc())) { |
|
num_get* ng = new num_get(); |
|
std::locale loc = std::locale(ios_arg.getloc(), ng); |
|
ios_arg.imbue(loc); |
|
} |
|
|
|
const_itr itr(this->m_format.begin()); |
|
while (itr != this->m_format.end() && (sitr != stream_end)) { |
|
if (*itr == '%') { |
|
++itr; |
|
if (*itr != '%') { |
|
// the cases are grouped by date & time flags - not alphabetical order |
|
switch(*itr) { |
|
// date flags |
|
case 'Y': |
|
case 'y': |
|
{ |
|
char_type cs[3] = { '%', *itr }; |
|
string_type s(cs); |
|
match_results mr; |
|
try { |
|
t_year = this->m_parser.parse_year(sitr, stream_end, s, mr); |
|
} |
|
catch(std::out_of_range&) { // base class for bad_year exception |
|
if(this->m_sv_parser.match(sitr, stream_end, mr)) { |
|
t = time_type(static_cast<special_values>(mr.current_match)); |
|
return sitr; |
|
} |
|
else { |
|
throw; // rethrow bad_year |
|
} |
|
} |
|
break; |
|
} |
|
case 'B': |
|
case 'b': |
|
case 'm': |
|
{ |
|
char_type cs[3] = { '%', *itr }; |
|
string_type s(cs); |
|
match_results mr; |
|
try { |
|
t_month = this->m_parser.parse_month(sitr, stream_end, s, mr); |
|
} |
|
catch(std::out_of_range&) { // base class for bad_month exception |
|
if(this->m_sv_parser.match(sitr, stream_end, mr)) { |
|
t = time_type(static_cast<special_values>(mr.current_match)); |
|
return sitr; |
|
} |
|
else { |
|
throw; // rethrow bad_month |
|
} |
|
} |
|
// did m_parser already advance sitr to next char? |
|
if(mr.has_remaining()) { |
|
use_current_char = true; |
|
} |
|
break; |
|
} |
|
case 'a': |
|
case 'A': |
|
case 'w': |
|
{ |
|
// weekday is not used in construction but we need to get it out of the stream |
|
char_type cs[3] = { '%', *itr }; |
|
string_type s(cs); |
|
match_results mr; |
|
typename date_type::day_of_week_type wd(0); |
|
try { |
|
wd = this->m_parser.parse_weekday(sitr, stream_end, s, mr); |
|
} |
|
catch(std::out_of_range&) { // base class for bad_weekday exception |
|
if(this->m_sv_parser.match(sitr, stream_end, mr)) { |
|
t = time_type(static_cast<special_values>(mr.current_match)); |
|
return sitr; |
|
} |
|
else { |
|
throw; // rethrow bad_weekday |
|
} |
|
} |
|
// did m_parser already advance sitr to next char? |
|
if(mr.has_remaining()) { |
|
use_current_char = true; |
|
} |
|
break; |
|
} |
|
case 'j': |
|
{ |
|
// code that gets julian day (from format_date_parser) |
|
match_results mr; |
|
day_of_year = fixed_string_to_int<unsigned short, CharT>(sitr, stream_end, mr, 3); |
|
if(day_of_year == -1) { |
|
if(this->m_sv_parser.match(sitr, stream_end, mr)) { |
|
t = time_type(static_cast<special_values>(mr.current_match)); |
|
return sitr; |
|
} |
|
} |
|
// these next two lines are so we get an exception with bad input |
|
typedef typename time_type::date_type::day_of_year_type day_of_year_type; |
|
day_of_year_type t_day_of_year(day_of_year); |
|
break; |
|
} |
|
case 'd': |
|
{ |
|
try { |
|
t_day = this->m_parser.parse_day_of_month(sitr, stream_end); |
|
} |
|
catch(std::out_of_range&) { // base class for exception bad_day_of_month |
|
match_results mr; |
|
if(this->m_sv_parser.match(sitr, stream_end, mr)) { |
|
t = time_type(static_cast<special_values>(mr.current_match)); |
|
return sitr; |
|
} |
|
else { |
|
throw; // rethrow bad_day_of_month |
|
} |
|
} |
|
break; |
|
} |
|
// time flags |
|
case 'H': |
|
{ |
|
match_results mr; |
|
hour = fixed_string_to_int<hour_type, CharT>(sitr, stream_end, mr, 2); |
|
if(hour == -1){ |
|
return check_special_value(sitr, stream_end, t, c); |
|
} |
|
break; |
|
} |
|
case 'M': |
|
{ |
|
match_results mr; |
|
min = fixed_string_to_int<min_type, CharT>(sitr, stream_end, mr, 2); |
|
if(min == -1){ |
|
return check_special_value(sitr, stream_end, t, c); |
|
} |
|
break; |
|
} |
|
case 's': |
|
case 'S': |
|
{ |
|
match_results mr; |
|
sec = fixed_string_to_int<sec_type, CharT>(sitr, stream_end, mr, 2); |
|
if(sec == -1){ |
|
return check_special_value(sitr, stream_end, t, c); |
|
} |
|
if (*itr == 'S') |
|
break; |
|
// %s is the same as %S%f so we drop through into %f |
|
} |
|
case 'f': |
|
{ |
|
// check for decimal, check SV if missing |
|
if(*sitr == '.') { |
|
++sitr; |
|
parse_frac_type(sitr, stream_end, frac); |
|
// sitr will point to next expected char after this parsing |
|
// is complete so no need to advance it |
|
use_current_char = true; |
|
} |
|
else { |
|
return check_special_value(sitr, stream_end, t, c); |
|
} |
|
break; |
|
} |
|
case 'F': |
|
{ |
|
// check for decimal, skip if missing |
|
if(*sitr == '.') { |
|
++sitr; |
|
parse_frac_type(sitr, stream_end, frac); |
|
// sitr will point to next expected char after this parsing |
|
// is complete so no need to advance it |
|
use_current_char = true; |
|
} |
|
else { |
|
// nothing was parsed so we don't want to advance sitr |
|
use_current_char = true; |
|
} |
|
break; |
|
} |
|
// time_zone flags |
|
//case 'q': |
|
//case 'Q': |
|
//case 'z': |
|
case 'Z': |
|
{ |
|
if(time_is_local) { // skip if 't' is a ptime |
|
++itr; |
|
if(*itr == 'P') { |
|
// skip leading whitespace |
|
while((sitr != stream_end) && std::isspace(*sitr)) { ++sitr; } |
|
// parse zone |
|
while((sitr != stream_end) && (!std::isspace(*sitr))) { |
|
tz_str += *sitr; |
|
++sitr; |
|
} |
|
} |
|
else { |
|
use_current_format_char = true; |
|
} |
|
|
|
} |
|
else { |
|
// nothing was parsed so we don't want to advance sitr |
|
use_current_char = true; |
|
} |
|
|
|
break; |
|
} |
|
default: |
|
{} // ignore what we don't understand? |
|
}// switch |
|
} |
|
else { // itr == '%', second consecutive |
|
++sitr; |
|
} |
|
|
|
if(use_current_format_char) { |
|
use_current_format_char = false; |
|
} |
|
else { |
|
++itr; //advance past format specifier |
|
} |
|
|
|
} |
|
else { //skip past chars in format and in buffer |
|
++itr; |
|
// set use_current_char when sitr is already |
|
// pointing at the next character to process |
|
if (use_current_char) { |
|
use_current_char = false; |
|
} |
|
else { |
|
++sitr; |
|
} |
|
} |
|
} |
|
|
|
date_type d(not_a_date_time); |
|
if (day_of_year > 0) { |
|
d = date_type(static_cast<unsigned short>(t_year-1),12,31) + date_duration_type(day_of_year); |
|
} |
|
else { |
|
d = date_type(t_year, t_month, t_day); |
|
} |
|
|
|
time_duration_type td(hour, min, sec, frac); |
|
t = time_type(d, td); |
|
return sitr; |
|
} |
|
|
|
//! Helper function to check for special_value |
|
/*! First character may have been consumed during original parse |
|
* attempt. Parameter 'c' should be a copy of that character. |
|
* Throws ios_base::failure if parse fails. */ |
|
template<class temporal_type> |
|
inline |
|
InItrT check_special_value(InItrT& sitr,InItrT& stream_end, temporal_type& tt, char_type c='\0') const |
|
{ |
|
match_results mr; |
|
if((c == '-' || c == '+') && (*sitr != c)) { // was the first character consumed? |
|
mr.cache += c; |
|
} |
|
this->m_sv_parser.match(sitr, stream_end, mr); |
|
if(mr.current_match == match_results::PARSE_ERROR) { |
|
std::string tmp = convert_string_type<char_type, char>(mr.cache); |
|
boost::throw_exception(std::ios_base::failure("Parse failed. No match found for '" + tmp + "'")); |
|
BOOST_DATE_TIME_UNREACHABLE_EXPRESSION(return sitr); // should never reach |
|
} |
|
tt = temporal_type(static_cast<special_values>(mr.current_match)); |
|
return sitr; |
|
} |
|
|
|
//! Helper function for parsing a fractional second type from the stream |
|
void parse_frac_type(InItrT& sitr, |
|
InItrT& stream_end, |
|
fracional_seconds_type& frac) const |
|
{ |
|
string_type cache; |
|
while((sitr != stream_end) && std::isdigit(*sitr)) { |
|
cache += *sitr; |
|
++sitr; |
|
} |
|
if(cache.size() > 0) { |
|
unsigned short precision = time_duration_type::num_fractional_digits(); |
|
// input may be only the first few decimal places |
|
if(cache.size() < precision) { |
|
frac = lexical_cast<fracional_seconds_type>(cache); |
|
frac = decimal_adjust(frac, static_cast<unsigned short>(precision - cache.size())); |
|
} |
|
else { |
|
// if input has too many decimal places, drop excess digits |
|
frac = lexical_cast<fracional_seconds_type>(cache.substr(0, precision)); |
|
} |
|
} |
|
} |
|
|
|
private: |
|
string_type m_time_duration_format; |
|
|
|
//! Helper function to adjust trailing zeros when parsing fractional digits |
|
template<class int_type> |
|
inline |
|
int_type decimal_adjust(int_type val, const unsigned short places) const |
|
{ |
|
unsigned long factor = 1; |
|
for(int i = 0; i < places; ++i){ |
|
factor *= 10; // shift decimal to the right |
|
} |
|
return val * factor; |
|
} |
|
|
|
}; |
|
|
|
template <class time_type, class CharT, class InItrT> |
|
std::locale::id time_input_facet<time_type, CharT, InItrT>::id; |
|
|
|
template <class time_type, class CharT, class InItrT> |
|
const typename time_input_facet<time_type, CharT, InItrT>::char_type* |
|
time_input_facet<time_type, CharT, InItrT>::fractional_seconds_format = time_formats<CharT>::fractional_seconds_format; |
|
|
|
template <class time_type, class CharT, class InItrT> |
|
const typename time_input_facet<time_type, CharT, InItrT>::char_type* |
|
time_input_facet<time_type, CharT, InItrT>::fractional_seconds_or_none_format = time_formats<CharT>::fractional_seconds_or_none_format; |
|
|
|
template <class time_type, class CharT, class InItrT> |
|
const typename time_input_facet<time_type, CharT, InItrT>::char_type* |
|
time_input_facet<time_type, CharT, InItrT>::seconds_with_fractional_seconds_format = time_formats<CharT>::seconds_with_fractional_seconds_format; |
|
|
|
template <class time_type, class CharT, class InItrT> |
|
const typename time_input_facet<time_type, CharT, InItrT>::char_type* |
|
time_input_facet<time_type, CharT, InItrT>::seconds_format = time_formats<CharT>::seconds_format; |
|
|
|
template <class time_type, class CharT, class InItrT> |
|
const typename time_input_facet<time_type, CharT, InItrT>::char_type* |
|
time_input_facet<time_type, CharT, InItrT>::standard_format = time_formats<CharT>::standard_format; |
|
|
|
template <class time_type, class CharT, class InItrT> |
|
const typename time_input_facet<time_type, CharT, InItrT>::char_type* |
|
time_input_facet<time_type, CharT, InItrT>::zone_abbrev_format = time_formats<CharT>::zone_abbrev_format; |
|
|
|
template <class time_type, class CharT, class InItrT> |
|
const typename time_input_facet<time_type, CharT, InItrT>::char_type* |
|
time_input_facet<time_type, CharT, InItrT>::zone_name_format = time_formats<CharT>::zone_name_format; |
|
|
|
template <class time_type, class CharT, class InItrT> |
|
const typename time_input_facet<time_type, CharT, InItrT>::char_type* |
|
time_input_facet<time_type, CharT, InItrT>::zone_iso_format = time_formats<CharT>::zone_iso_format; |
|
|
|
template <class time_type, class CharT, class InItrT> |
|
const typename time_input_facet<time_type, CharT, InItrT>::char_type* |
|
time_input_facet<time_type, CharT, InItrT>::zone_iso_extended_format = time_formats<CharT>::zone_iso_extended_format; |
|
|
|
template <class time_type, class CharT, class InItrT> |
|
const typename time_input_facet<time_type, CharT, InItrT>::char_type* |
|
time_input_facet<time_type, CharT, InItrT>::duration_seperator = time_formats<CharT>::duration_seperator; |
|
|
|
template <class time_type, class CharT, class InItrT> |
|
const typename time_input_facet<time_type, CharT, InItrT>::char_type* |
|
time_input_facet<time_type, CharT, InItrT>::iso_time_format_specifier = time_formats<CharT>::iso_time_format_specifier; |
|
|
|
template <class time_type, class CharT, class InItrT> |
|
const typename time_input_facet<time_type, CharT, InItrT>::char_type* |
|
time_input_facet<time_type, CharT, InItrT>::iso_time_format_extended_specifier = time_formats<CharT>::iso_time_format_extended_specifier; |
|
|
|
template <class time_type, class CharT, class InItrT> |
|
const typename time_input_facet<time_type, CharT, InItrT>::char_type* |
|
time_input_facet<time_type, CharT, InItrT>::default_time_input_format = time_formats<CharT>::default_time_input_format; |
|
|
|
template <class time_type, class CharT, class InItrT> |
|
const typename time_input_facet<time_type, CharT, InItrT>::char_type* |
|
time_input_facet<time_type, CharT, InItrT>::default_time_duration_format = time_formats<CharT>::default_time_duration_format; |
|
|
|
|
|
} } // namespaces |
|
|
|
|
|
#endif |
|
|
|
|