55 lines
1.7 KiB
Raku
55 lines
1.7 KiB
Raku
my $months-per-col = 3;
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my @week-day-names = <Mo Tu We Th Fr Sa Su>;
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my @month-names = <Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec>;
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my Int $year = +(@*ARGS.shift || 1969);
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say fmt-year($year);
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exit;
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sub fmt-year ($year) {
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my $str = (' ' x 30) ~ $year ~ "\n";
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my Array @month-strs;
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@month-strs[$_] = fmt-month($year, $_).lines.Array for 1 .. 12;
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loop ( my $month = 1; $month <= 12; $month += $months-per-col ) {
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while @month-strs[$month] {
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for ^$months-per-col {
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next unless @month-strs[$month+$_];
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$str ~= @month-strs[$month+$_].shift;
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$str ~= " " x 3;
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}
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$str ~= "\n";
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}
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$str ~= "\n";
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}
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return $str;
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}
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sub fmt-month ($year, $month) {
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my $str = sprintf "%-20s\n", @month-names[$month-1];
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$str ~= @week-day-names~"\n";
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my $date = DateTime.new(year => $year, month => $month);
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my $week-day = $date.day-of-week;
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$str ~= (" " xx $week-day-1).join(" ");
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for $date.day .. $date.days-in-month -> $day {
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$date = DateTime.new(year => $year, month => $month, day => $day);
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$str ~= " " if 1 < $week-day < 8;
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if $week-day == 8 {
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$str ~= "\n";
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$week-day = 1;
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}
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$str ~= sprintf "%2d", $day;
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$week-day++;
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}
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$str ~= " " if $week-day < 8;
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$str ~= (" " xx 8-$week-day).join(" ");
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$str ~= "\n";
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return $str;
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}
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