Hi,

I am looking for a better way to do some rather simple date-arithmetic.

At the moment I am using the DateTime-Module but I just reinstalled it on a new system and I am shocked on how much dependencies it pulls in.

I know there is a plethora of date-modules on CPAN and as I am too lazy to check them all out myself I hope for some pointers for something more lightweight...

So my ideal solution would be using only core-modules while not getting too complicated or at least using modules that don't pull in half of cpan.

What I need is a logic that produces a date depending on the current day:

If the current day is a Thursday I want the date of the following day.
If the current day is a Friday I want the date of this day.
If the current day is anything else I want the date of the preceeding Friday.

Here is what I do at the monent: 

use DateTime;

my $td = DateTime->today;

my $days_since_friday = ($td->day_of_week - 5) % 7;

my $days_to_subtract = $days_since_friday == 6 ? -1 : $days_since_frid
+ay;

$td->subtract( days => $days_to_subtract );

print $td->strftime("%d%m%y");

[download]
Many thanks!

In reply to date arithmetic by morgon

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