From: Marc Hoeppner <marc.hoeppner@...>
Date: 2008-01-14T21:07:36+09:00
Subject: Re: Stream Parsing with REXML

Ok, I am still on this and am starting to feel a bit stupid...I guess 
there is something wrong with the following example, but maybe I should 
step back for a while. Anyhow - what's missing to make it work:

The xml file:

<Gene-ref>
  <name>Gene1</name>
  <start>1</start>
  <end>10</end>
 </Gen-ref>
 <Gene-ref>
  <name>Gene2</name>
  <start>11</start>
  <end>20</end>
 </Gen-ref>
 <Gene-ref>
  <name>Gene3</name>
  <start>21</start>
  <end>30</end>
 </Gen-ref>
 <Gene-ref>
  <name>Gene4</name>
  <start>31</start>
  <end>40</end>
 </Gen-ref>
 <Gene-ref>
  <name>Gene5</name>
  <start>41</start>
  <end>50</end>
 </Gen-ref>

The code:

data = File.new(ARGV.shift)

class Listener

  def tag_start( name, attr_hash )
    if name == 'Gene-ref'
     @name = name
  end
  end

  def text( str )

  end

  def tag_end( name )
    if name == 'Gene-ref'
      puts @name
      @name = nil
    end
  end
end


require 'rexml/document'
REXML::Document.parse_stream( data, Listener.new )
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