I have several groups of files in a directory, like:
Mazda.1.jpg, Mazda.2.jpg, Mazda.2.jpg
Toyota.1.jpg, Toyota.2.jpg, Toyota.3.jpg
Voyager.1.jpg, Voyager.2.jpg, Voyager.3.jpg
Etc. etc
# First of, I'll get the list of all files.
my ($image, @bigger, @smaller);
if (-d "images"){
opendir (IMAGESDIR, "images") || die "$!";
@images = readdir(IMAGESDIR);
foreach $image (@images){
if (-f $image && $images =~ /(\.gif | \.jpe?g)$/i){
# I want to get all the (larger) pictures (e.g. Mazda.1.jpg or
#Toyota.1.jpg).
if ($image =~ /[A-Za-z]\.1\.[A-Za-z]/i)){
push (@bigger, $image);
}else {
push (@smaller,$image);
}
# Find the smaller counterpart of each large picture.
# My problem lies here. How do I get for instance(Mazda.2, Madza3)
while (@bigger){
foreach $big(@bigger){
# If $big is Mazda.1.jpg, how do I search @small for
Mazda.2.jpg
# and Mazda.3.jpg?
my @all_pictures = grep {/$big/i} @smaller;
}
}
}
-----Ursprüngliche Nachricht-----
Von: Rob Dixon [mailto:[EMAIL PROTECTED]
Gesendet: Dienstag, 17. Februar 2004 23:44
An: [EMAIL PROTECTED]
Betreff: Re: Regex to find group of image files
B. Fongo wrote:
>
> I'm having tough time trying to solve a problem at some regex. I have
> several pictures for cars, and want to use a script to create some
HTML
> files using those pictures.
> For each car, I have three pictures named e.g. jeep.1.jpg, jeep.2.jpg
> and jeep.3.jpg.
>
> What am trying to do now, is to use a regex to select the three
picture
> of each car brand, and assign to an array e.g. @pictures. Further down
> in my script, I'll assign each item my @pictures to a scalar - like
> jeep.1.jpg to $picture1 and so on. The pattern matching that I wrote
is
> working.
>
> Below is an uncompleted subroutine for that purpose:
>
> sub product_img {
> my ($image, @bigger, @smaller);
> if (-d "images"){
> opendir (IMAGESDIR, "images") || images_error;
> while(defined($image = readdir(IMAGESDIR))){
> if (-f $image && $images =~ /(*\.gif | *\.jpe?g)/)$i){
> if ($image =~ /[A-Za-z]\.[A-Za-z]/i)){
> push (@bigger, $image);
> }else {
> push ($smaller,$image);
> }
> foreach (@bigger){
> my @rest_img = grep //
>
> }
>
>
>
> } else { die "There isn't any pictures in the specified
> folder!"}
>
>
> }
>
>
>
>
> }else {
>
>
> }
>
> ==========================================================
>
>
> I only need help to get my pattern matching to work.
I think you mean
if ( -f $image && $images =~ /(\.gif|\.jpe?g)$/i ) {
:
}
but I'm not clear what $image =~ /[A-Za-z]\.[A-Za-z]/i
is supposed to be doing to distinguish between @bigger
and @smaller? Anyway, with the /i qualifier it's the same as
$image =~ /[a-z]\.[a-z]/i
and returns true if the filename contains a pair of alphas
of either case surrounding a dot.
Also, you need to
push @smaller, $image;
(you can't push onto a scalar!)
HTH,
Rob
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