Contents

description  'Footnote support'

Tag.define :ref, :optional => 'name', :description => 'Create footnote' do |context, attrs, content|
  footnotes = context[:footnotes] ||= []
  hash = context[:footnotes_hash] ||= {}
  name = attrs['name']
  if content.blank?
    raise(ArgumentError, 'Attribute name missing') if name.blank?
    raise(NameError, "Footnote #{name} not found") if !hash.include?(name)
    note_id = hash[name]
    ref_id = "#{note_id}_#{footnotes[note_id-1][2].size + 1}"
    footnotes[note_id-1][2] << ref_id
  else
    note_id = ref_id = footnotes.size + 1
    content = subfilter(context.subcontext, content)
    footnotes << [note_id, content.gsub(/^\s*<p>\s*|\s*<\/p>\s*$/, ''), [ref_id]]
    hash[name] = note_id if !name.blank?
  end
  %{<a class="ref" id="ref#{ref_id}" href="#note#{note_id}">[#{note_id}]</a>}
end

Tag.define :references, :description => 'Print all footnotes' do |context, attrs|
  footnotes = context[:footnotes]
  render :footnotes, :locals => {:footnotes => footnotes} if footnotes
end

__END__

@@ footnotes.slim
ol
  - footnotes.each do |id, note, refs|
    li id="note#{id}"
      - refs.each do |ref|
        a.backref ref="#ref#{ref}" ↑
      == note

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
olelo-0.9.3	plugins/tags/footnotes.rb
olelo-0.9.2	plugins/tags/footnotes.rb
olelo-0.9.1	plugins/tags/footnotes.rb