O Monks! Cometh one bearing a great problem and seeking help...
I've got a bunch of files that I'm reading with lines like this:
...
Name=foo
Icon=bar
Categories=a;b;c
...
I read this in, parse it, and store it in a hash like so:
#!/usr/bin/perl -w
use strict;
chdir "/usr/share/applications";
my (%collect, $out);
while (our $Fn = <*.desktop>){
chomp $Fn;
open Fn or die "$Fn: $!\n";
while (<Fn>){
$collect{name} = "$1" if /^Name=(.*)$/;
$collect{icon} = "$1" if /^Icon=(.*)$/;
$collect{exec} = "$1" if /^Exec=(.*)$/;
$collect{categories} = "$1" if /^Categories=(.*);?\s*$/;
}
$collect{categories} ||= "Misc";
$collect{icon} ||= "-";
for (qw/name exec categories/){
print "Bad value for '$Fn' ($_)\n"
unless defined $collect{$_};
}
my $val = qq#prog "$collect{name}" $collect{icon} $collect{exec}#;
### More code follows
This, however, is where things break down. What I want is to split the categories into a list, then create a hash that works like this:
# 'categories' entry is 'GNOME;Games;Action'
push $out{GNOME}{Games}{Action}, $val;
# 'GNOME;Games;Action;FPS'
push $out{GNOME}{Games}{Action}{FPS}, $val;
# ...and so on.
That's the part where I've been tearing out my hair: I've been trying to sensibly construct this thing, and... I'm completely stumped. I've been trying for hours non-stop. The most frustrating part is that I feel I should know how to do this: I've been working with Perl for years, and using hashes and refs, etc. - and my brain just refuses to give up the answer. What I have so far - this comes just below the first code chunk that I showed above - is this:
my @levels = split /;/, $collect{categories};
for (0 .. $#levels) {
$out->{$levels[$_]} = {} unless exists $out->{$levels[$_]};
$out->{$levels[$_]} = $val if $_ == $#levels;
}
close Fn;
}
use Data::Dumper;
print Dumper($out);
...which, of course, does not work. Please HELP!
Thanks in advance.
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