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Ruby code posted by fede
created at 25 Sep 23:21

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class HTMLwithPygments < Redcarpet::Render::HTML
  def block_code(code, language)
    sha = Digest::SHA1.hexdigest(code)
      Rails.cache.fetch ["code", language, sha].join('-') do
        Pygments.highlight(code, lexer:language)
      end
  end
end
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