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module Banzai
module Filter
# HTML filter that sets dir="auto" for RTL languages support
class SetDirectionFilter < HTML::Pipeline::Filter
def call
# select these elements just on top level of the document
doc.xpath('p|h1|h2|h3|h4|h5|h6|ol|ul[not(@class="section-nav")]|blockquote|table').each do |el|
el['dir'] = 'auto'
end
doc
end
end
end
end
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