From: Ryan Leavengood <leavengood@...>
Date: 2005-11-17T04:09:47+09:00
Subject: Re: where is the each_recursive method defined?

On 11/16/05, snailigrape@yahoo.com.cn <snailigrape@yahoo.com.cn> wrote:
> #i'm new  to ruby. i download the machanize gem and install it.
> in  machanize.rb , root_node has an each_recursive method,but i can't
> fine the definition in docs. who can tell me what to do,thanks in
> advance.
>
> def self.extract_all_from(root_node)
>     fields = []
>     root_node.each_recursive {|node|
>       if (node.name.downcase == 'input' and
>          %w(text password hidden checkbox radio
> int).include?(node.attributes['type'].downcase)) or
>          %w(textarea option).include?(node.name.downcase)
>         fields << Field.new(node.attributes['name'],
> node.attributes['value'])
>       end
>     }
>     return fields
>   end

It is part of additions made to the REXML library by mechanize, in
mechanize/parsing.rb:

module REXML::Node

  # Visit all subnodes of +self+ recursively

  def each_recursive(&block) # :yields: node
    self.elements.each {|node|
      block.call(node)
      node.each_recursive(&block)
    }
  end

I hope that explains to you what it does.

Ryan