A Perl module to parse an XML string by string?

[Doctrin]

Hello everyone! Could anyone tell if there is a Perl XML parser that reads input XML file string by string, not the whole at once?.. The reason of such question is - I have a real big XML, about 1G, and want Perl to find all "id" attributes of nodes with a particular path, say, "root/mynode":

<root>
blah-blah, some nodes here
<mynode id=500>
and some nodes here also
</mynode>
...
blah-blah, some nodes here
<mynode id=500>
and some nodes here also
</mynode>
</root>

Thanks in advance for your help P.S. Does XML::XPath do so?..

[toolic]

XML::Twig "A perl module for processing huge XML documents in tree mode."

[Doctrin]

Thank you! That is just what I need.

[runrig]

An example with XML::Rules

use XML::Rules;

my $xml = <<XML;
<root>
<mynode id='500'>
</mynode>
<mynode id='500'>
</mynode>
</root>
XML

my @rules = (
  # Only get 'mynode' directly under root
  mynode => [ '/root' => sub { print "$_[1]->{id}\n"; return }, _defau
+lt => undef ],
  _default => undef,
);
my $xr = XML::Rules->new(rules => \@rules);
$xr->parse($xml);

[choroba]

You can use XML::LibXML::Reader.

Note that your example XML is not well formed: attribute values must be enclosed in single or double quotes.