in reply to Re: Nested loops in HTML::Template
in thread Nested loops in HTML::Template

Sorry about the previous anonymous posts -- i couldn't get my password at the machine I was using.

Anyway, my next (logical) follow-up question is this: Given an array of directories (@dirs) and the ability to get all of the filenames in each of those dirs into an array (@files), what's the best way to build the structure you describe in your post?

would you do something like: 
foreach (@dirs) {
  # get filenames into @files
  # push dir name...?
  foreach (@files) {
    # do some sort of magic with push();,
    # taking into account when you get to the
    # fifth filename...?
  }
}

[download]
I was able to figure out how to use push() to loop through the dir names, but adding the sub-structures is confusing :)

-Brian

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Re: Building the structure to hold said beast.
by vladb (Vicar) on May 30, 2002 at 14:17 UTC
    LTjake, give this a shot: 
    #!/usr/bin/perl
use strict;
use File::Find;
use Data::Dumper;

my $dir_list;
# count of { file_row => [...] } entries inside
# dir_row array. (err.. simply dir_row array's size).
my $dir_row_count = 0;
my $file_count = 0;
# number of files in a row..
my $file_split_count = 5; 
# previous directory
my $prev_dir; 

find(\&wanted, 'data');

print Dumper($dir_list);

### SUBS

sub wanted { 
  $DB::single = 1;
  unless ($prev_dir eq $File::Find::dir) {
    $prev_dir = $File::Find::dir;
    # got a new directory
    push @$dir_list, { dir => $File::Find::dir, dir_row => [] };
  }

  if (-f $_) {
    unless ($file_count % $file_split_count) {
      # add another file row if maximum number of files
      # allowed in a row has been exceeded.
      push @{$dir_list->[scalar @$dir_list - 1]{dir_row}}, { file_row 
+=> [] };
    }

    # add file to the file row...
    push @{$dir_list->[scalar @$dir_list - 1]{dir_row}[$dir_row_count]
+{file_row}}, 
      { filename => $File::Find::name };
    $dir_row_count++; 
    $file_count++;
  }
}

    [download]
    Unfortunately, this is an untested piece as I have no 'good' means to thoroughly test it on the box I"m on now (my MS-DOS command prompt doesn't work for some freakn reason.. ). I'll do the testing on my Unix box at work (during coffee time, yeah! ;-)

    Note: I post it here in hopes someone picks it up from where I left or at leats finds it useful in his own rendition of a solution. (although, having this reply nested so deep, I'm not sure if many monks out there will notice it ;)

    _____________________ 
    $"=q;grep;;$,=q"grep";for(`find . -name ".saves*~"`){s;$/;;;/(.*-(\d+)
+-.*)$/;
$_=["ps -e -o pid | "," $2 | "," -v "," "];`@$_`?{print"+ $1"}:{print"
+- $1"}&&`rm $1`;
print$\;}

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Re: Building the structure to hold said beast.
by talexb (Chancellor) on May 30, 2002 at 13:57 UTC
    It's not exactly clear what you're after. Can you add links to your original Anonymous posts? That way we'll be able to respond to your posts more efficiently.

    --t. alex

    "Nyahhh (munch, munch) What's up, Doc?" --Bugs Bunny

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