From: Heesob Park <phasis@...>
Date: 2009-08-06T23:00:45+09:00
Subject: Re: Basic XML to nested Array

Hi,

2009/8/6 James Jhfghgfhgf <james@ralphandco.com>:
> Hey,
>
> I've been having some trouble getting to grips with the various XML
> libraries, I just want to put together a ruby script that will convert a
> basic XML file into a nested array then just output that array to the
> console.
>
> The XML looks like this:
> <vector>
>  <point>
>      <x>1018.550659</x>
>      <y>558.138367</y>
>      <z>102.505821</z>
>  </point>
>  <point>
>      <x>1013.557495</x>
>      <y>560.874878</y>
>      <z>107.041840</z>
>  </point>
>  <point>
>      <x>1008.563049</x>
>      <y>563.611267</y>
>      <z>111.577576</z>
>  </point>
> </vector>
> <vector>
>  <point>
>      <x>1030.809204</x>
>      <y>551.722961</y>
>      <z>86.581741</z>
>  </point>
>  <point>
>      <x>1027.500854</x>
>      <y>553.190613</y>
>      <z>95.061058</z>
>  </point>
> </vector>
>
> and I want to make it this:
> [[[1018.550659],[558.138367],[102.505821]],[[1013.557495],[560.874878],[107.041840]],[[1008.563049],[563.611267],[111.577576]]],[[[1030.809204],[551.722961],[86.581741]],[[1027.500854],[553.190613],[95.061058]]]
>
> Anyone know the best way to go about this?
>
Your xml file is missing the root element.
If your xml file is 'a.xml', you can do something like this:

require 'rexml/document'
doc = REXML::Document.new("<root>"+File.read("a.xml")+"</root>")
res = doc.elements.to_a("/*/*").map{|e1|
e1.elements.to_a.map{|e2|e2.elements.to_a.map{|e3|e3.text}}
}
p res


Regards,

Park Heesob