Nokogiri::XML::Reader and attribute

result.txt

% ruby tameshi-giri.rb          
ruby 2.0.0p247 (2013-06-27 revision 41674) [x86_64-darwin11.4.2]
Nokogiri::VERSION = 1.6.0
Nokogiri::LIBXML_VERSION = 2.8.0
"value"
"http://example.com/"


% ruby tameshi-giri.rb
ruby 2.0.0p247 (2013-06-27 revision 41674) [x86_64-linux]
Nokogiri::VERSION = 1.6.0
Nokogiri::LIBXML_VERSION = 2.8.0
"value"
"http://example.com/"

tameshi-giri.rb

#!/usr/bin/env ruby
require 'nokogiri'
puts RUBY_DESCRIPTION
puts "Nokogiri::VERSION = #{Nokogiri::VERSION}"
puts "Nokogiri::LIBXML_VERSION = #{Nokogiri::LIBXML_VERSION}"

xml = <<-XML
<?xml version="1.0" encoding="UTF-8"?>
<root xmlns="http://example.com/">
  <foo name="value"/>
  <bar/>
</root>
XML

reader = Nokogiri::XML::Reader(xml) do |config|
  config.strict.nonet
end
reader.each do |node|
  next unless /foo|bar/ =~ node.name
  p node.attribute("name")
end