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require 'oga' unless defined?(Oga)
require 'multi_xml/parsers/libxml2_parser'
module MultiXml
module Parsers
module Oga #:nodoc:
include Libxml2Parser
extend self
def parse_error
LL::ParserError
end
def parse(io)
document = ::Oga.parse_xml(io)
node_to_hash(document.children[0])
end
def node_to_hash(node, hash = {}) # rubocop:disable AbcSize, CyclomaticComplexity, MethodLength, PerceivedComplexity
node_hash = {MultiXml::CONTENT_ROOT => ''}
name = node_name(node)
# Insert node hash into parent hash correctly.
case hash[name]
when Array
hash[name] << node_hash
when Hash
hash[name] = [hash[name], node_hash]
when NilClass
hash[name] = node_hash
end
# Handle child elements
each_child(node) do |c|
if c.is_a?(::Oga::XML::Element)
node_to_hash(c, node_hash)
elsif c.is_a?(::Oga::XML::Text) || c.is_a?(::Oga::XML::Cdata)
node_hash[MultiXml::CONTENT_ROOT] << c.text
end
end
# Remove content node if it is empty
if node_hash[MultiXml::CONTENT_ROOT].strip.empty?
node_hash.delete(MultiXml::CONTENT_ROOT)
end
# Handle attributes
each_attr(node) do |a|
key = node_name(a)
v = node_hash[key]
node_hash[key] = (v ? [a.value, v] : a.value)
end
hash
end
private
def each_child(node, &block)
node.children.each(&block)
end
def each_attr(node, &block)
node.attributes.each(&block)
end
def node_name(node)
node.name
end
end # Oga
end # Parsers
end # MultiXml
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