Sha256: f0d784a8d73a34494c7f446f89ccc0f419a186b38c1f6d6bcaa1993dd36ae765
Contents?: true
Size: 1.28 KB
Versions: 9
Compression:
Stored size: 1.28 KB
Contents
description 'Auto-generated table of contents'
dependencies 'utils/xml'
Page.attributes do
boolean :toc
end
Filter.create :toc do |context, content|
return content if !context.page.attributes['toc']
doc = XML::Fragment(content)
toc = ''
level = 0
count = [0]
elem = doc.css('h1, h2, h3, h4, h5, h6').first
offset = elem ? elem.name[1..1].to_i - 1 : 0
doc.traverse do |child|
if child.name =~ /^h(\d)$/
nr = $1.to_i - offset
if nr > level
while nr > level
toc << (level == 0 ? '<ol class="toc">' : '<ol>')
count[level] = 0
level += 1
toc << '<li>' if nr > level
end
else
while nr < level
level -= 1
toc << '</li></ol>'
end
toc << '</li>'
end
count[level-1] += 1
headline = child.children.first ? child.children.first.inner_text : ''
section = ['sec', count[0..level-1], headline.strip.gsub(/[^\w]/, '-')].flatten.join('-').downcase
toc << %{<li class="toc#{level-offset+1}"><a href="##{section}">#{headline}</a>}
child.inner_html = %{<span class="number" id="#{section}">#{count[0..level-1].join('.')}</span> #{child.inner_html}}
end
end
while level > 0
level -= 1
toc << '</li></ol>'
end
toc + doc.to_xhtml
end
Version data entries
9 entries across 9 versions & 1 rubygems