Here is some starter code. You essentially have an XML file to parse. You need to know How to RTFM and search the site as this sort of task is very common.

# get your data into a string:
my $data = join '', <DATA>;

# declare a hash variable
my %secs;

# use a regex match to get the bits
while ($data =~ m|<([^>]+)>([^<]+)</\1>|g ) {
    $secs{$1} = $2;
}
print "Regex Method\n";
print "\nSection: '$_'\n", $secs{$_} for keys %secs;

# or use XML::Simple to parse it (generally better) ...
use XML::Simple;
my $hash = XMLin($data);
print "\n\nXML Method\n";
print "\nSection: '$_'\n", $secs{$_} for keys %$hash;

__DATA__
<xml>
  <section1>
  blah1 
  blah1
  </section1>
  
  <section2>
  blah2
  blah2
  </section2>
  
  <section3>
  blah3
  blah3
  </section3>
</xml>
[download]

I would suggest a hash as the data structure because it is easy to index to and delete chunks. XML::Simple will write your hash back to a file for you as well as parse the file directly. Read the docs.

cheers

tachyon

s&&rsenoyhcatreve&&&s&n.+t&"$'$`$\"$\&"&ee&&y&srve&&d&&print