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require "addressable/uri"
require "kramdown/options"
module Kramdown
module Options
class AlwaysEqual
def ==(_other)
true
end
end
define(:document_domains, Object, %w[www.gov.uk], <<~DESCRIPTION) do |val|
Defines the domains which are considered local to the document
Default: www.gov.uk
Used by: KramdownWithAutomaticExternalLinks
DESCRIPTION
simple_array_validator(val, :document_domains, AlwaysEqual.new)
end
end
module Parser
class Govuk < Kramdown::Parser::Kramdown
CUSTOM_INLINE_ELEMENTS = %w[govspeak-embed-attachment-link].freeze
def initialize(source, options)
@document_domains = options[:document_domains] || %w[www.gov.uk]
super
end
def add_link(element, href, title, alt_text = nil, ial = nil)
if element.type == :a
begin
host = Addressable::URI.parse(href).host
unless host.nil? || @document_domains.compact.include?(host)
element.attr["rel"] = "external"
end
rescue Addressable::URI::InvalidURIError
# it's safe to ignore these very *specific* exceptions
end
end
super
end
def parse_block_html
return false if CUSTOM_INLINE_ELEMENTS.include?(@src[1].downcase)
super
end
end
end
end
Version data entries
30 entries across 30 versions & 1 rubygems