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