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copied!<p>Here is example of <code>XML::Twig</code> usage. The main advantage is that it is not holding whole file in memory, so processing is much faster. The code below is trying to emulate operation of script from question.</p> <pre><code>use XML::Twig; my %strings = (); XML::Twig->new( twig_handlers => { 'strings/string' => sub { $strings{ lc $_->first_child('name')->text } = $_->first_child('id')->text }, } )->parsefile('B.xml'); print "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<npc_templates xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xsi:noNamespaceSchemaLocation=\"npcs.xsd\">\n"; XML::Twig->new( twig_handlers => { 'npc_client' => sub { my $nameid = eval { $strings{ lc $_->first_child('desc')->text } }; # calculate rank as needed my $hpgauge_level = eval { $_->first_child('hpgauge_level')->text }; $rank = $hpgauge_level >= 28 ? 'ERROR' : $hpgauge_level > 25 ? 'LEGENDARY' : $hpgauge_level > 21 ? 'HERO' : $hpgauge_level > 10 ? 'ELITE' : $hpgauge_level > 0 ? 'NORMAL' : $hpgauge_level; my $npc_id = eval { $_->first_child('id')->text }; my $name = eval { $_->first_child('name')->text }; my $tribe = eval { $_->first_child('tribe')->text }; my $scale = eval { $_->first_child('scale')->text }; my $race_type = eval { $_->first_child('race_type')->text }; print qq|\t<npc_template npc_id="$npc_id" name="$name" name_id="$nameid" height="$scale" rank="$rank" tribe="$tribe" race="$race_type" hp_gauge="$hpgauge_level"/>\n|; $_->purge; } } )->parsefile('A.xml'); print "</<npc_templates>"; </code></pre>

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