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Calendar: Difference between revisions
→{{header|Perl}}
m (perl example is incorrect) |
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<lang perl>$_=$ARGV[0]//1969;`cal $_ >&2`</lang>
=={{header|Perl 6}}==
<lang perl6>my $months-per-col = 3;
my @week-day-names = <Mo Tu We Th Fr Sa Su>;
my @month-names = <Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec>;
my Int $year = +(@*ARGS.shift || 1969);
say fmt-year($year);
exit;
sub fmt-year ($year) {
my $str = (' ' x 30) ~ $year ~ "\n";
my @month-strs;
@month-strs[$_] = fmt-month($year, $_).lines for 1 .. 12;
loop ( my $month = 1; $month <= 12; $month += $months-per-col ) {
while @month-strs[$month] {
for ^$months-per-col {
next unless @month-strs[$month+$_];
$str ~= @month-strs[$month+$_].shift;
$str ~= " " x 3;
}
$str ~= "\n";
}
$str ~= "\n";
}
return $str;
}
sub fmt-month ($year, $month) {
my $str = sprintf "%-20s\n", @month-names[$month-1];
$str ~= @week-day-names~"\n";
my $date = DateTime.new(year => $year, month => $month);
my $week-number = $date.week-number;
my $week-day = $date.day-of-week;
$str ~= (" " xx $week-day-1).join(" ");
for $date.day .. $date.days-in-month -> $day {
$date = DateTime.new(year => $year, month => $month, day => $day);
$str ~= " " if $week-day < 8;
if $week-day == 8 {
$str ~= "\n";
$week-number = $date.week-number;
}
$week-day = 1 if $week-day == 8;
$str ~= sprintf "%2d", $day;
$week-day++;
}
$str ~= " " if $week-day < 8;
$str ~= (" " xx 8-$week-day).join(" ");
$str ~= "\n";
return $str;
}
=={{header|PicoLisp}}==
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