Created
August 26, 2016 17:48
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| #!/usr/bin/env perl6 | |
| my @dates = Date.today, Date.today.succ ... ∞; | |
| my %taken = | |
| # first wednesday | |
| plug-central => { $_.day-of-week == 3 and $_.weekday-of-month == 1 }, | |
| # second tuesday | |
| plug-north => { $_.day-of-week == 2 and $_.weekday-of-month == 2 }, | |
| # third monday | |
| plug-west => { $_.day-of-week == 1 and $_.weekday-of-month == 3 }, | |
| # second thursday | |
| philly-pug => { $_.day-of-week == 4 and $_.weekday-of-month == 2 }, | |
| # third tuesday | |
| philly-devops => { $_.day-of-week == 2 and $_.weekday-of-month == 3 }, | |
| # last tuesday | |
| software-as-craft => { $_.day-of-week == 2 and $_.later(:1week).month != $_.month }, | |
| ; | |
| my @available = lazy gather { | |
| for @dates -> $d { | |
| next if %taken.values.grep({ $_($d) }); | |
| take $d; | |
| } | |
| }; | |
| my @proposed-philly-perlmongers = | |
| @available.grep: { $_.day-of-week == 1 and $_.weekday-of-month == 2 } | |
| .say for @proposed-philly-perlmongers[^10]; | |
| # output: | |
| # | |
| # 2016-09-12 | |
| # 2016-10-10 | |
| # 2016-11-14 | |
| # 2016-12-12 | |
| # 2017-01-09 | |
| # 2017-02-13 | |
| # 2017-03-13 | |
| # 2017-04-10 | |
| # 2017-05-08 | |
| # 2017-06-12 |
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