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require "oga"
require_relative "dom_parser"
module MultiXml
module Parsers
# XML parser using the Oga library
#
# @api private
module Oga
include DomParser
extend self
# Get the parse error class for this parser
#
# @api private
# @return [Class] LL::ParserError
def parse_error = LL::ParserError
# Parse XML from an IO object
#
# @api private
# @param io [IO] IO-like object containing XML
# @return [Hash] Parsed XML as a hash
# @raise [LL::ParserError] if XML is malformed
def parse(io)
doc = ::Oga.parse_xml(io)
node_to_hash(doc.children.first)
end
# Collect child nodes into a hash (Oga-specific implementation)
#
# Oga uses different node types than Nokogiri/LibXML.
#
# @api private
# @param node [Oga::XML::Element] Parent node
# @param node_hash [Hash] Hash to populate
# @return [void]
def collect_children(node, node_hash)
each_child(node) do |child|
case child
when ::Oga::XML::Element then node_to_hash(child, node_hash)
when ::Oga::XML::Text, ::Oga::XML::Cdata then node_hash[TEXT_CONTENT_KEY] << child.text
end
end
end
private
# Iterate over child nodes
#
# @param node [Oga::XML::Element] Parent node
# @return [void]
def each_child(node, &) = node.children.each(&)
# Iterate over attribute nodes
#
# @param node [Oga::XML::Element] Element node
# @return [void]
def each_attr(node, &) = node.attributes.each(&)
# Get the name of a node or attribute
#
# @param node [Oga::XML::Node] Node to get name from
# @return [String] Node name
def node_name(node) = node.name
end
end
end
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