#! /usr/bin/perl

use strict;
use warnings;
use HTML::Parser;

my $string = qq~.:<script>text</script> .:<script>text34</script> <div class="bbcode">sammler schrieb:</div>~;
my $p = HTML::Parser->new();
$p->handler(start => \&start_handler,"tagname,self");
$p->parse($string);

sub start_handler{
  return if(shift ne 'script');
  my $self = shift;
  my $text;
  $self->handler(text => sub{$text = shift;},"dtext");
  $self->handler(end  => sub{print $text,"\n\n" if(shift eq 'script')},"tagname");
}