Doomsday rule: Difference between revisions
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Line 1,582:
if [[ "$1" =~ ([0-9]{4})-([0-9]{2})-([0-9]{2}) ]]
then
local -ra dow=({Sun,Mon,Tues,Wednes,Thurs,Fri,Satur}day) doomsday=({37,41}7426415375)
local -
local -i {year
((▼
isLeap=(year % 4 == 0) && ( (year % 100) || (year % 400 == 0) ),
c=year/100,
Line 1,594 ⟶ 1,591:
t=(year % 100) % 12,
a=(5*(c%4)+2) % 7,
b=(s + t + (t / 4) + a ) % 7,
▲ echo ${dow[(b + day - ${doomsday[is-leap]:month-1:1} + 7) % 7]}
else return 1
fi
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