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require 'rexml/document'
# SimpleXML like xml parser. Written by leon breet from the ruby on rails Mailing list
class XmlNode
attr :node
def initialize(node, options = {})
@node = node
@children = {}
@raise_errors = options[:raise_errors]
end
def self.from_xml(xml_or_io)
document = REXML::Document.new(xml_or_io)
if document.root
XmlNode.new(document.root)
else
XmlNode.new(document)
end
end
def node_encoding
@node.encoding
end
def node_name
@node.name
end
def node_value
@node.text
end
def node_value=(value)
@node.text = value
end
def xpath(expr)
matches = nil
REXML::XPath.each(@node, expr) do |element|
matches ||= XmlNodeList.new
matches << (@children[element] ||= XmlNode.new(element))
end
matches
end
def method_missing(name, *args)
name = name.to_s
nodes = nil
@node.each_element(name) do |element|
nodes ||= XmlNodeList.new
nodes << (@children[element] ||= XmlNode.new(element))
end
nodes
end
def <<(node)
if node.is_a? REXML::Node
child = node
elsif node.respond_to? :node
child = node.node
end
@node.add_element child
@children[child] ||= XmlNode.new(child)
end
def [](name)
@node.attributes[name.to_s]
end
def []=(name, value)
@node.attributes[name.to_s] = value
end
def to_s
@node.to_s
end
def to_i
to_s.to_i
end
end
class XmlNodeList < Array
def [](i)
i.is_a?(String) ? super(0)[i] : super(i)
end
def []=(i, value)
i.is_a?(String) ? self[0][i] = value : super(i, value)
end
def method_missing(name, *args)
name = name.to_s
self[0].__send__(name, *args)
end
end
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