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Contents
module Krikri
##
# An XmlParser
# @see Krikri::Parser
class XmlParser < Krikri::Parser
def initialize(record, root_path = '/')
xml = Nokogiri::XML(record.to_s)
ns = namespaces_from_xml(xml)
@root = Value.new(xml.at_xpath(root_path, ns), ns)
super(record)
end
private
def namespaces_from_xml(xml)
namespaces = xml.collect_namespaces.map do |k, v|
[k.gsub('xmlns:', ''), v]
end
namespaces.to_h
end
##
# An XML Parser Value node class
# @see Krikri::Parser::Value
class Value < Krikri::Parser::Value
def initialize(node, namespaces)
node = node.root if node.xml?
@node = node
@namespaces = namespaces
end
delegate :attributes, :xpath, :at_xpath, :css, :at_css, :to => :@node
def children
@node.element_children.map do |child|
return child.name unless child.namespace
"#{@namespaces.key(child.namespace.href)}:#{child.name}"
end
end
def values
select_values.map(&:text)
end
def values?
!select_values.empty?
end
private
def get_child_nodes(name)
@node.xpath("#{@node.path}/#{name}", @namespaces)
.map { |node| self.class.new(node, @namespaces) }
end
def select_values
@node.children.select(&:text?)
end
end
end
end
Version data entries
31 entries across 31 versions & 1 rubygems