doc = Nokogiri::HTML(to_html)
- if doc.content.length > 0
+ if doc.content.empty?
+ link_proportion = 0
+ else
doc.xpath("//a").each do |link|
link_count += 1
link_size += link.content.length
end
link_proportion = link_size.to_f / doc.content.length.to_f
- else
- link_proportion = 0
end
[link_proportion - 0.2, 0.0].max * 200 + link_count * 40
class Markdown < Base
def to_html
- html_parser.render(self).html_safe
+ Markdown.html_parser.render(self).html_safe
end
def to_text
to_s
end
- private
-
- def html_parser
- @@html_renderer ||= Renderer.new(:filter_html => true, :safe_links_only => true)
- @@html_parser ||= Redcarpet::Markdown.new(@@html_renderer, :no_intra_emphasis => true, :autolink => true, :space_after_headers => true)
+ def self.html_renderer
+ @html_renderer ||= Redcarpet::Render::XHTML.new(:filter_html => true, :safe_links_only => true, :link_attributes => { :rel => "nofollow" })
end
- class Renderer < Redcarpet::Render::XHTML
- def link(link, _title, alt_text)
- "<a rel=\"nofollow\" href=\"#{link}\">#{alt_text}</a>"
- end
-
- def autolink(link, link_type)
- if link_type == :email
- "<a rel=\"nofollow\" href=\"mailto:#{link}\">#{link}</a>"
- else
- "<a rel=\"nofollow\" href=\"#{link}\">#{link}</a>"
- end
- end
+ def self.html_parser
+ @html_parser ||= Redcarpet::Markdown.new(html_renderer, :no_intra_emphasis => true, :autolink => true, :space_after_headers => true)
end
end