Class: AsciidoctorLists::Asciidoctor::ListTreeprocessor

Inherits:
Asciidoctor::Extensions::Treeprocessor
  • Object
show all
Defined in:
lib/asciidoctor-lists/extensions.rb

Overview

Searches for the elements and replaced the UUIDs with the lists Inspired by github.com/asciidoctor/asciidoctor-bibtex/blob/master/lib/asciidoctor-bibtex/extensions.rb#L162

Instance Method Summary collapse

Instance Method Details

#parse_asciidoc(parent, content, attributes = {}) ⇒ Object

This is an adapted version of Asciidoctor::Extension::parse_content, where resultant blocks are returned as a list instead of attached to the parent.



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# File 'lib/asciidoctor-lists/extensions.rb', line 85

def parse_asciidoc(parent, content, attributes = {})
  result = []
  reader = ::Asciidoctor::Reader.new content
  while reader.has_more_lines?
    block = ::Asciidoctor::Parser.next_block reader, parent, attributes
    result << block if block
  end
  result
end

#process(document) ⇒ Object 



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# File 'lib/asciidoctor-lists/extensions.rb', line 30

def process(document)
  tof_blocks = document.find_by do |b|
    # for fast search (since most searches shall fail)
    (b.content_model == :simple) && (b.lines.size == 1) \
       && (ListMacroAttributes.keys.include?(b.lines[0]))
  end
  tof_blocks.each do |block|
    references_asciidoc = []

    params = ListMacroAttributes[block.lines[0]]
    enhanced_rendering = params[:enhanced_rendering]
    hide_empty_section = params[:hide_empty_section]

    elements = document.find_by(traverse_documents: true, context: params[:element].to_sym)
    if elements.length > 0
      elements.each do |element|

        if element.caption or element.title
          unless element.id
            element.id = SecureRandom.uuid
            document.catalog[:refs][element.id] = element
          end

          if enhanced_rendering
              if element.caption
                references_asciidoc << %(xref:#{element.id}[#{element.caption.rstrip()}] #{element.instance_variable_get(:@title)} +)
              else
                references_asciidoc << %(xref:#{element.id}[#{element.instance_variable_get(:@title)}] +)
              end
            else
              if element.caption
               references_asciidoc << %(xref:#{element.id}[#{element.caption.rstrip()}] #{element.title} +)
              else
               references_asciidoc << %(xref:#{element.id}[#{element.title}] +)
            end
          end
        end
      end
    elsif hide_empty_section
      block.parent.parent.blocks.delete block.parent
    end

    block_index = block.parent.blocks.index do |b|
      b == block
    end
    reference_blocks = parse_asciidoc block.parent, references_asciidoc
    reference_blocks.reverse.each do |b|
      block.parent.blocks.insert block_index, b
    end
    block.parent.blocks.delete_at block_index + reference_blocks.size
  end
end