From: Jeff Wood <jeffwood@...>
Date: 2004-11-16T03:06:27+09:00
Subject: Scope...

Ok, here's a snippet

def parseElement( currentElement, currentNode )

  # Step 1: Load the attributes from currentElement into currentNode
  currentElement.attributes.each do |name, value|
    currentNode.attributes[name] = value
  end
   
  # Step 2: Parse the children.
  currentElement.children.each do |currentChild|
   
    if currentChild.kind_of? Text
      puts "Ignoring #{currentChild.value}"
    end
   
    if currentChild.kind_of? Element

      childNode = JWNode.new( currentChild.name )

      #################################################################
      # PROBLEM HERE ... currentNode doesn't make it into this scope. #
      # vvvvvvvvvvvv ##################################################
      currentNode.children << childNode

      parseElement( currentChild, childNode )

    end
   
  end
 
end

The code is taking an REXML::Element tree ( xml doc ) ... and passing it 
in with another object.

As I try to add children to the passed in object, I find that 
currentNode at the "PROBLEM HERE" point is Nil

I guess I don't understand Ruby's scoping logic as well as I thought I 
did...  help?

j.