[lug] Perl Question..

[Joseph McDonald]

On Thu, Apr 17, 2003 at 01:44:31PM -0600, Tkil wrote:
> >>>>> "Joseph" == Joseph McDonald <joem at uu.net> writes:
> 
> Joseph> Not directly linux related, so hopefully I don't get flamed
> Joseph> but can anyone think of a way to sort this array into a list
> Joseph> which matches the actual calandar months? Meaning, Jan, Feb,
> Joseph> March, April ... Dec. I've been racking my brain today to no
> Joseph> avail:
> 
> How did you get this list?
> 
> I ask because I'm curious why you are wanting to do this particular
> task.  My guess is that you have a series of dates, and you want to
> put them into chronologic order.  If so, consider using Date::Parse or
> one of the other modules; it will likely be less fragile than any
> hand-made solution.

Well, that is a good point. A seperate process creates monthly
reporting files in a directory and it names them something like
this: '$month.$year.html'. I was initially working on a predefined 
hash, but I ended up reading up on sort() and came up with this:

my @files = <*.html>;
my @var = sort month_year_sort @files;

for (@var) {
     chomp;
     my ($month, $year, $ext) = split /\./;
     print "<a href=\"$_\">$month -- $year</A><BR>\n";
}

sub month_year_sort
{
   my $i = 1;
   my $status = 1;

   my $int_a = int_month($a);
   my $int_b = int_month($b);

   $a =~ /\w+\.(\d{4})\.html/;
   $a_year = $1;
   $b =~ /\w+\.(\d{4})\.html/;
   $b_year = $1;

   return $a_year <=> $b_year || $int_a <=> $int_b;
}

sub int_month
{
   @months = qw ( Jan Feb Mar Apr May June Jul Aug Sep Oct Nov Dec );
   my $i = 1;
   foreach $month ( @months ) {
        return $i if  $_[0] =~ /^$month/;
        $i++;
   }
}

	--joey