1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677 |
- #!/usr/bin/perl
- # cal.pl - Display the calendar of a given month.
- # Fedon Kadifeli, 1998 - April 2003.
- # Improved by Trizen - February 2012
- my (%months) = (
- '1' => {LENGTH => 31, NAME => 'January'},
- '2' => {LENGTH => 28, NAME => 'February'},
- '3' => {LENGTH => 31, NAME => 'March'},
- '4' => {LENGTH => 30, NAME => 'April'},
- '5' => {LENGTH => 31, NAME => 'May'},
- '6' => {LENGTH => 30, NAME => 'June'},
- '7' => {LENGTH => 31, NAME => 'July'},
- '8' => {LENGTH => 31, NAME => 'August'},
- '9' => {LENGTH => 30, NAME => 'September'},
- '10' => {LENGTH => 31, NAME => 'October'},
- '11' => {LENGTH => 30, NAME => 'November'},
- '12' => {LENGTH => 31, NAME => 'December'},
- );
- my ($day, $real_month, $real_year) = (localtime time)[3 .. 5];
- my ($month, $year) = ($real_month += 1, $real_year += 1900);
- if (@ARGV and $ARGV[0] =~ /^(?:\d\d?|\w{3,})$/) {
- $month = shift @ARGV;
- if ($month =~ /^ *\d\d? *$/) {
- unless ($month >= 1 and $month <= 12) {
- die "Month must be between 1 and 12!\n";
- }
- $month = int $month;
- }
- else {
- while (my ($k, $v) = each %months) {
- if ($$v{'NAME'} =~ /^\Q$month\E/io) {
- $month = $k;
- last;
- }
- }
- $month = $real_month unless $month =~ /^\d\d?$/;
- }
- }
- if (@ARGV and $ARGV[0] =~ /^\d\d\d\d$/) {
- $year = int shift @ARGV;
- }
- printf "%*s\n%s\n", 11 + (5 + length($months{$month}{'NAME'})) / 2,
- "$months{$month}{'NAME'} $year", 'Su Mo Tu We Th Fr Sa';
- if ($year % 400 == 0 or $year % 4 == 0 and $year % 100 != 0) {
- $months{'2'}{'LENGTH'} = 29;
- }
- --$year;
- my $st = 1 + $year * 365 + int($year / 4) - int($year / 100) + int($year / 400);
- foreach my $i (1 .. $month - 1) {
- $st += $months{$i}{'LENGTH'};
- }
- print q{ } x ($st % 7);
- ++$year;
- foreach my $i (1 .. $months{$month}{'LENGTH'}) {
- if ($i == $day and $year == $real_year and $month == $real_month) {
- printf '%s%2d%s ', "\e[7m", $i, "\e[0m";
- }
- else {
- printf '%2d ', $i;
- }
- print "\n" if ($st + $i) % 7 == 0 and $i != $months{$month}{'LENGTH'};
- }
- print "\n\n";
|