I used to use Treepad on Windows (www.treepad.com) and wrote a Perl
module to read and write Treepad Files. These were plain text but had
extra information to define each node in the tree.
Now I use ORG mode for my outlining requirements.
Today I adapted a program to create a listing of the contents
of a CD-ROM. The program is written in Perl (not Lisp!).
I use Windows, and my CD-ROM drive is F:
I write a unique number on each CD, for example, C039
To catalogue the disk, I run the command
perl cdcat.pl C039.org F:
Now I can view the file C039.org with Emacs and expand/collapse the
directory names.
Sample output:
* f:
f:
** Australian Piano Concertos
f:/Australian Piano Concertos
01 Piano Concert Movt 1 - Ross Edwards.mp3 (6884786)
02 Piano Concerto Movt 2 - Ross Edwards.mp3 (10772642)
03 Piano Concerto Movt 3 - Ross Edwards.mp3 (4604168)
07 Piano Concerto - Peter Sculthorpe.mp3 (26613776)
Australian Piano Concertos playlist.m3u (746)
** Sun Music
f:/Sun Music
01 Memento Mori - Peter Sculthorpe.mp3 (20459686)
02 Sun Song - Peter Sculthorpe.mp3 (8521866)
03 Sun Music 1 - Peter Sculthorpe.mp3 (14595318)
04 Sun Music 2 - Peter Sculthorpe.mp3 (8466152)
05 Sun Music 3 - Peter Sculthorpe.mp3 (17877436)
06 Sun Music 4 - Peter Sculthorpe.mp3 (12673498)
07 From Uluru - Peter Sculthorpe.mp3 (5337404)
Sun Music playlist.m3u (584)
# Save the remained of the message as a file cdcat.pl
# cdcat.pl Modified on 29th April 2005
use strict;
use warnings;
# parse a directory structure to create an Emacs org mode file
# with a list of files against each node.
my $outfile = shift;
my $root = shift; # start directory for searching, a CD drive: G:
my $info = ""; # the catalogue data being prepared
defined($outfile) or $outfile = "cd.org";
defined($root) or die "Syntax is cdcat cdlabel CDdrive\n";
open (my $fv, ">", $outfile) or die "Cannot create $outfile\n";
my $level = 0;
parse_dir($root, $level, $root);
print $fv $info;
close($fv);
print "Analysis of $root written to $outfile\n";
###############
sub parse_dir {
###############
my $dir = shift;
my $level = shift;
my $fullpath = shift;
my @dirlist = ();
my $filelist = "";
chdir($fullpath) or die "chdir to $fullpath failed\n";
opendir(my $dirfv, ".") or die "Cannot open . in $dir\n";
while (my $file = readdir($dirfv)) {
if ( -f $file ) {
my $size = -s $file;
$filelist .= " $file ($size)\n";
}
next if ($file eq ".");
next if ($file eq "..");
push (@dirlist, $file) if -d $file;
}
$info .= '*' x ( $level + 1 );
$info .= " $dir\n$fullpath\n$filelist";
foreach my $subdir (@dirlist) {
parse_dir($subdir, $level + 1, $fullpath."/".$subdir);
}
}
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