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require 'nokogiri'
# = XmlMini Nokogiri implementation
module ActiveSupport
module XmlMini_Nokogiri #:nodoc:
extend self
# Parse an XML Document string into a simple hash using libxml / nokogiri.
# string::
# XML Document string to parse
def parse(string)
if string.blank?
{}
else
doc = Nokogiri::XML(string)
raise doc.errors.first if doc.errors.length > 0
doc.to_hash
end
end
module Conversions
module Document
def to_hash
root.to_hash
end
end
module Node
CONTENT_ROOT = '__content__'.freeze
# Convert XML document to hash
#
# hash::
# Hash to merge the converted element into.
def to_hash(hash = {})
node_hash = {}
# Insert node hash into parent hash correctly.
case hash[name]
when Array then hash[name] << node_hash
when Hash then hash[name] = [hash[name], node_hash]
when nil then hash[name] = node_hash
else raise "Unexpected error during hash insertion!"
end
# Handle child elements
children.each do |c|
if c.element?
c.to_hash(node_hash)
elsif c.text? || c.cdata?
node_hash[CONTENT_ROOT] ||= ''
node_hash[CONTENT_ROOT] << c.content
end
end
# Remove content node if it is blank and there are child tags
if node_hash.length > 1 && node_hash[CONTENT_ROOT].blank?
node_hash.delete(CONTENT_ROOT)
end
# Handle attributes
attribute_nodes.each { |a| node_hash[a.node_name] = a.value }
hash
end
end
end
Nokogiri::XML::Document.send(:include, Conversions::Document)
Nokogiri::XML::Node.send(:include, Conversions::Node)
end
end
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