From: "NAKAMURA, Hiroshi" <nakahiro@...>
Date: 2005-04-30T11:27:44+09:00
Subject: Re: [QUIZ] Barrel of Monkeys (#30)

Hi all,

Sorry for OT & advertising.

Bill Guindon wrote:
> On 4/29/05, Ruby Quiz <james@grayproductions.net> wrote:
> 
>>You can find an XML file with over 5,000 song names and play time at
>>http://rubyquiz.com/SongLibrary.xml.gz (100k compressed). The song durations are
>>in milliseconds.
> 
> Any suggestions for an easy to use XML library?  Or for that matter,
> is it ok to convert it to another format?  Personally, I'd prefer CSV
> or YAML (hate the extra baggage that comes with XML).

With the latest snapshot of soap4r, you can parse that like this;

  0% irb
  irb(main):001:0> require 'zlib'
  => true
  irb(main):002:0> gz =
Zlib::GzipReader.new(File.open("SongLibrary.xml.gz"))
  => #<Zlib::GzipReader:0x101d5458>
  irb(main):003:0> require 'xsd/mapping'
  => true
  irb(main):004:0> library = XSD::Mapping.xml2obj(gz.read); nil
  => nil
  irb(main):005:0> library.Artist.size
  => 1004
  irb(main):006:0> library.Artist.find { |artist| artist.xmlattr_name =
"ABBA" }.Song.collect { |song| song.xmlattr_name }
  => ["Caught Up In You", "Fantasy Girl", "Hold On Loosely", "Second
Chance", "Teacher, Teacher", "Back Where You Belong", "The Sound of Your
Voice"]

xml2obj generates singleton object for each XML element (It means you
can't Marshal.dump it.  ).

Regards,
// NaHi