Re: LOCALE ERROR - RE: how to compare 2 dates - NOW WITH TIME
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- Subject: Re: LOCALE ERROR - RE: how to compare 2 dates - NOW WITH TIME
- From: Tommy Pettersson <ptp@...>
- Date: 2009年5月10日 12:33:20 +0200
On Fri, May 08, 2009 at 06:22:29PM +0000, Diego - Red Baires wrote:
> Hi guys, i still cannot apply the concept that Kein recommends.
Hm, I may be missing something here, but what I think you want
to do (according to your first description) should not be so
complicated. As Kein suggested, use os.date('*t',time) to get
the hour of the day &c.
function time2day (t)
return math.floor( t / 86400 ) -- seconds per day
end
function date2day (y, m, d)
local time = os.time{ year=y, month=m, day=d }
return time2day( time )
end
test_interval = {
first_day = date2day( 2009, 05, 01 );
last_day = date2day( 2009, 05, 31 ); -- inclusive
start_hour = 15;
stop_hour = 16; -- exclusive
}
function is_active( interval, time )
time = time or os.time() -- default value for time
local day = time2day( time )
if (day < interval.first_day) or (interval.last_day < day) then
return false
end
local hour = os.date( '*t', time ).hour
if (hour < interval.start_hour) or (interval.stop_hour <= hour) then
return false
end
return true
end
print( is_active( test_interval )) -- true in May 2009 from 3pm to 4pm
--
Tommy Pettersson <ptp@lysator.liu.se>
- References:
- rare sorting on a table, Diego - Red Baires
- Re: rare sorting on a table, Wim Couwenberg
- Re: rare sorting on a table, Doug Rogers
- how to compare 2 dates, Diego - Red Baires
- Re: how to compare 2 dates, Petite Abeille
- RE: how to compare 2 dates - NOW WITH TIME, Diego - Red Baires
- Re: how to compare 2 dates - NOW WITH TIME, KHMan
- RE: how to compare 2 dates - NOW WITH TIME, Diego - Red Baires
- Re: how to compare 2 dates - NOW WITH TIME, KHMan
- LOCALE ERROR - RE: how to compare 2 dates - NOW WITH TIME, Diego - Red Baires