docbrown/app/lib/redcarpet/render/html_rouge.rb
2019-10-11 12:34:42 -04:00

55 lines
1.6 KiB
Ruby

require "rouge/plugins/redcarpet"
module Redcarpet
module Render
class HTMLRouge < HTML
include Rouge::Plugins::Redcarpet
def link(link, _title, content)
# Probably not the best fix but it does it's job of preventing
# a nested links.
return nil if /<a\s.+\/a>/.match?(content)
link_attributes = ""
@options[:link_attributes]&.each do |attribute, value|
link_attributes += %( #{attribute}="#{value}")
end
if (/https?:\/\/[\S]+/.match? link) || link.nil?
%(<a href="#{link}"#{link_attributes}>#{content}</a>)
elsif /\.{1}/.match? link
%(<a href="//#{link}"#{link_attributes}>#{content}</a>)
elsif link.start_with?("#")
%(<a href="#{link}"#{link_attributes}>#{content}</a>)
else
%(<a href="#{app_protocol}#{app_domain}#{link}"#{link_attributes}>#{content}</a>)
end
end
def header(title, header_number)
anchor_link = slugify(title)
<<~HEREDOC
<h#{header_number}>
<a name="#{anchor_link}" href="##{anchor_link}" class="anchor">
</a>
#{title}
</h#{header_number}>
HEREDOC
end
private
def app_protocol
ApplicationConfig["APP_PROTOCOL"]
end
def app_domain
ApplicationConfig["APP_DOMAIN"]
end
def slugify(string)
stripped_string = ActionView::Base.full_sanitizer.sanitize string
stripped_string.downcase.gsub(EmojiRegex::Regex, "").strip.gsub(/[[:punct:]]/u, "").gsub(/\s+/, "-")
end
end
end
end