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/*
* Copyright (c) 2003-2007, John Wiegley. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of New Artisans LLC nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _TIMES_H
#define _TIMES_H
namespace ledger {
#define SUPPORT_DATE_AND_TIME 1
#ifdef SUPPORT_DATE_AND_TIME
typedef boost::posix_time::ptime datetime_t;
typedef datetime_t::time_duration_type duration_t;
inline bool is_valid(const datetime_t& moment) {
return ! moment.is_not_a_date_time();
}
#else // SUPPORT_DATE_AND_TIME
typedef boost::gregorian::date datetime_t;
typedef boost::gregorian::date_duration duration_t;
inline bool is_valid(const datetime_t& moment) {
return ! moment.is_not_a_date();
}
#endif // SUPPORT_DATE_AND_TIME
extern const datetime_t& current_moment;
extern int current_year;
extern string input_time_format;
extern string output_time_format;
DECLARE_EXCEPTION(error, datetime_error);
struct interval_t
{
unsigned short years;
unsigned short months;
unsigned short days;
unsigned short hours;
unsigned short minutes;
unsigned short seconds;
datetime_t begin;
datetime_t end;
mutable bool advanced;
interval_t(int _days = 0, int _months = 0, int _years = 0,
const datetime_t& _begin = datetime_t(),
const datetime_t& _end = datetime_t())
: years(_years), months(_months), days(_days),
hours(0), minutes(0), seconds(0),
begin(_begin), end(_end), advanced(false) {
TRACE_CTOR(interval_t,
"int, int, int, const datetime_t&, const datetime_t&");
}
interval_t(const string& desc)
: years(0), months(0), days(0),
hours(0), minutes(0), seconds(0), advanced(false) {
TRACE_CTOR(interval_t, "const string&");
std::istringstream stream(desc);
parse(stream);
}
~interval_t() throw() {
TRACE_DTOR(interval_t);
}
operator bool() const {
return (years > 0 || months > 0 || days > 0 ||
hours > 0 || minutes > 0 || seconds > 0);
}
void start(const datetime_t& moment) {
begin = first(moment);
}
datetime_t first(const datetime_t& moment = datetime_t()) const;
datetime_t increment(const datetime_t&) const;
void parse(std::istream& in);
};
#if 0
inline datetime_t ptime_local_to_utc(const datetime_t& when) {
struct std::tm tm_gmt = to_tm(when);
return boost::posix_time::from_time_t(std::mktime(&tm_gmt));
}
// jww (2007-04-18): I need to make a general parsing function
// instead, and then make these into private methods.
inline datetime_t ptime_from_local_date_string(const string& date_string) {
return ptime_local_to_utc(datetime_t(boost::gregorian::from_string(date_string),
time_duration()));
}
inline datetime_t ptime_from_local_time_string(const string& time_string) {
return ptime_local_to_utc(boost::posix_time::time_from_string(time_string));
}
#endif
datetime_t parse_datetime(const char * str);
inline datetime_t parse_datetime(const string& str) {
return parse_datetime(str.c_str());
}
inline string format_datetime(const datetime_t& when) {
return ""; // jww (2008-07-19): NYI
}
extern const ptime time_now;
extern const date date_now;
extern bool day_before_month;
#if 0
struct intorchar
{
int ival;
string sval;
intorchar() : ival(-1) {}
intorchar(int val) : ival(val) {}
intorchar(const string& val) : ival(-1), sval(val) {}
intorchar(const intorchar& o) : ival(o.ival), sval(o.sval) {}
};
ledger::datetime_t parse_abs_datetime(std::istream& input);
#endif
} // namespace ledger
#endif // _TIMES_H
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