From: David Vanderson <dvanderson@...>
Date: 2007-03-24T05:57:57+09:00
Subject: interaction bug between rexml and yaml

Hello,

I've been having some trouble converting rexml documents to yaml and 
back.  See the following test case:
#!/usr/bin/env ruby
require 'yaml'
require 'rexml/document'
d = REXML::Document.new '<my_doc my_attr="my_val">Hello</my_doc>'
puts YAML::load(d.to_yaml)

When I run it I get this error:
NoMethodError: undefined method `each_value' for "my_val":String
        from /usr/lib/ruby/1.8/rexml/element.rb:1029:in `each_attribute'
        from /usr/lib/ruby/1.8/rexml/element.rb:1025:in `each_attribute'
        from /usr/lib/ruby/1.8/rexml/element.rb:684:in `write'
        from /usr/lib/ruby/1.8/rexml/document.rb:165:in `write'
        from /usr/lib/ruby/1.8/rexml/document.rb:163:in `write'
        from /usr/lib/ruby/1.8/rexml/node.rb:23:in `to_s'
        from (irb):5

I believe it has something to do with the REXML::Attributes class 
extending Hash, so YAML::load produces just a Hash, without Attribute 
objects inside.

This is with:
ruby 1.8.4 (2005-12-24) [i386-linux]

Can anyone else reproduce this?

Thanks,
Dave