my @img = map { $_->[0] }
sort { $tsort{$Option{thumbsorting}}->() }
map { my $seq = m/(\d+)/ ? $1 : 0;
[ $_, $seq, (stat "$idir/$_")[7,9], lc $_, rand 1 ] }
grep { my $s = -s "$idir/$_"; $s and $s > 100 } # Sanity check. Minimal image size 100
# convert can't deal with .ico files (yet)
# Tk can deal with Tiff/NEF as of 804.027_501 with Tk::TIFF
grep m/\.(jpe?g|gif|x[pb]m|png|bmp|tiff?|nef)$/i => @file_names;
####
@out = map substr ($_, 1 + rindex $_, "\0") =>
sort =>
map "\L$_\E\0$_" =>
@in;
##
##
# sort file names by the (first) sequence of digits, then by size
my @sorted = map { $_->[0],
sort { $a->[1] cmp $b->[1] }
map { m/(\d+)/; # sort by digits in file name
[ $_, pack "l>l>", $1 || 0, -s $_ ] }
@filelist;