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# Only allow this backend the nokogiri gem is already loaded
raise ::LoadError, "The nokogiri library isn't available. require 'nokogiri'" unless defined?(Nokogiri)
module OEmbed
module Formatter
module XML
module Backends
# Use the nokogiri gem to parse XML values.
module Nokogiri
extend self
# Parses an XML string or IO and convert it into an object.
def decode(xml)
obj = {}
doc = ::Nokogiri::XML(xml) { |config| config.strict }
doc.root.elements.each do |el|
obj[el.name] = el.text
end
obj
rescue
case $!
when parse_error
raise $!
else
raise parse_error, "Couldn't parse the given document."
end
end
def decode_fail_msg
"The version of the nokogiri library you have installed isn't parsing XML like ruby-oembed expected."
end
def parse_error
::Nokogiri::XML::SyntaxError
end
end
end
end
end
end
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