[libxml-devel] doc.to_hash, node.to_hash, xpath.to_hash

[Charlie Savage]

Hey Tim,

> Here is what I came up with. It mimics the rails method in that it
> does not deal with attributes. It also doesn't do anything with
> namespaces either. Frankly I don't quite know how I would deal those
> issues anyway.

Cool.  So I assume you want this to be a drop in replacement for 
whatever Rails is using now (REXML I assume?).  Does Rails have a test 
suite for outputting xml that you can test against?

If we can prove this actually works, then maybe we wrap it up as an 
optional module included in libxml that you could require in code?

> I am a fairly new rubyist so this code may not be up to your
> standards, feel free to do with it what you will.
> 
> class LibXML::XML::Node
>   def has_duplicate_elements?
>     a=[]
>     self.each_element do |c|
>       return true if a.include? c.name
>       a << c.name
>     end
>     return false
>   end
> 
>   def node_to_hash (node)
>     if not node.children?
>       nil
>     elsif (node.children.count == 1 && node.first.text?) ||
> node.empty?
>       node.content
>     elsif node.has_duplicate_elements?
>       a =[]
>       node.each_element do |e|
>         a << {e.name => node_to_hash(e)}
>       end
>       a
>     else
>       h = {}
>       node.each_element { |e|
>         h[e.name] = node_to_hash(e)
>       }
>       h
>     end
>   end
>   def to_hash
>     h={}
>     h[self.name] = node_to_hash(self)
>     h
>   end
> end

At a quick glance it seems ok....

Charlie
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