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# Adapted from the admonition code on http://nanoc.ws/
class AdmonitionFilter < Nanoc::Filter
identifier :admonition
BOOTSTRAP_MAPPING = {
'tip' => 'success',
'note' => 'info',
'caution' => 'warning',
'danger' => 'danger'
}.freeze
FONT_AWESOME_MAPPING = {
'note' => 'info-circle',
'tip' => 'pencil',
'caution' => 'exclamation-triangle',
'danger' => 'bolt'
}.freeze
def run(content, params = {})
# `#dup` is necessary because `.fragment` modifies the incoming string. Ew!
# See https://github.com/sparklemotion/nokogiri/issues/1077
doc = Nokogiri::HTML.fragment(content.dup)
doc.css('p').each do |para|
content = para.inner_html
next if content !~ /\A(TIP|NOTE|CAUTION|DANGER): (.*)\Z/m
new_content = generate($1.downcase, $2)
para.replace(new_content)
end
doc.to_s
end
def generate(kind, content)
%(<div class="admonition-wrapper #{kind}">) +
%(<div class="admonition alert alert-#{BOOTSTRAP_MAPPING[kind]}">) +
%(<i class="fa fa-#{FONT_AWESOME_MAPPING[kind]} fa-fw" aria-hidden="true"></i>#{content}</div></div>)
end
end
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