From: Keith Fahlgren <keith@...>
Date: 2007-07-13T02:18:45+09:00
Subject: Re: XML file processing using REXML (beginner's question)

On 7/12/07, Ronald Fischer <ronald.fischer@venyon.com> wrote:
> Hello!
>
> I try to understand REXML using the tutorial in

Hi,

You seem comfortable with XPath, so let me strongly encourage the
methods defined in the REXML::XPath class instead of the []-based
methods.

http://www.germane-software.com/software/XML/rexml/doc/classes/REXML/XPath.html

$ cat rbtalk.rb
#!/usr/bin/env ruby
require "rexml/document"
source=<<ENDXML
<ns:toplevel>
   <ns:request requestID="1">
      <ns:application aid="demo-a">
       </ns:application>
   </ns:request>
   <ns:request requestID="2">
      <ns:application aid="demo-b">
      </ns:application>
   </ns:request>
</ns:toplevel>
ENDXML
doc = REXML::Document.new source
REXML::XPath.each(doc, "/ns:toplevel/ns:request") {|element|
 puts element.attributes["requestID"]
}
p REXML::XPath.match(doc, "/ns:toplevel/ns:request[@requestID='2']")


$ ruby ./rbtalk.rb
1
2
[<ns:request requestID='2'> ... </>]



HTH,
Keith