#!/usr/bin/perl
use strict;
use warnings;
use XML::Parser;

my $size= 500000;
my @base64_chars=('a'..'z','A'..'Z','0'..'9','+','/','=');

my $string= join( '', map { $base64_chars[rand(@base64_chars)] }(1..$size));

my $doc= qq{<doc>
  <elt>foo</elt>
  <long1>$string</long1>
  <long2>$string</long2>
  <elt>bar</elt>
</doc>};

my $p= XML::Parser->new( Handlers => { Char => \&char, });
$p->parse( $doc);
exit;

sub char
  { my( $expat, $char)= @_;
    print "in ", $expat->current_element, " - ",
          "length char: ", length( $char), " - ",
          "length recognized: ", length( $expat->recognized_string), " - ",
          "length original: ", length( $expat->original_string), "\n",
          ;
  }