Module: NoraMark::Html

Defined in:
lib/nora_mark/html/util.rb,
lib/nora_mark/html/pages.rb,
lib/nora_mark/html/context.rb,
lib/nora_mark/html/generator.rb,
lib/nora_mark/html/tag_writer.rb,
lib/nora_mark/html/paragraph_writer.rb,
lib/nora_mark/html/frontmatter_writer.rb,
lib/nora_mark/html/default_transformer.rb,
lib/nora_mark/html/abstract_node_writer.rb,
lib/nora_mark/html/raw_text_block_writer.rb

Defined Under Namespace

Modules: Util Classes: AbstractNodeWriter, Context, FrontmatterWriter, Generator, Pages, ParagraphWriter, RawTextBlockWriter, TagWriter

Class Method Summary collapse

Class Method Details

.default_transformer ⇒ Object 



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# File 'lib/nora_mark/html/default_transformer.rb', line 3

def self.default_transformer
  transformer = TransformerFactory.create do
    rename 'd', 'div'
    rename 'art', 'article'
    rename 'arti', 'article'
    rename 'sec', 'section'
    rename 'sect', 'section'
    rename 'sp', 'span'

    modify({ type: :Root }) do
      if (@options[:render_parameter] ||= {})[:nonpaged]
        first_page = @node.first_child.remove
        @node.children.each do |node|
          if node.class == NoraMark::Page
            first_page.append_child block('hr', classes: ['page-break'], body_empty: true)
            node.remove
            node.children.each do |cn|
              first_page.append_child cn
            end
          else
            first_page.append_child node
          end
        end
        @node.prepend_child first_page
      end
    end
    modify(/\A(l|link)\Z/) do
      @node.name = 'a'
      (@node.attrs ||= {}).merge!({ href: [@node.params[0].text] })
    end

    replace 'noescape' do
      node = text(@node.text)
      node.noescape = true
      node
    end

    modify 'ruby' do
      @node.append_child inline 'rp', '('
      @node.append_child inline 'rt', escape_html(@node.params[0].text.strip)
      @node.append_child inline 'rp', ')'
    end

    modify 'tcy' do
      @node.name = 'span'
      @node.classes = ['tcy']
    end

    modify 'img' do
      @node.body_empty = true
      @node.attrs ||= {}
      @node.attrs.merge!({ src: [@node.params[0].text] }) if @node.attrs[:src].nil?
      @node.attrs.merge!({ alt: [escape_html(@node.params[1].text.strip)] }) if (@node.attrs[:alt].nil? && @node.p.size > 1 && @node.params[1].text.size > 0)
    end

    replace 'image' do
      imagenode = inline('img', nil,
                         body_empty: true,
                         attrs: { src: [@node.params[0].text.strip], alt: [(@node.params[1].text || '').strip] })
      newnode = block('figure',
                      class_if_empty: 'img-wrap',
                      ids: @node.ids,
                      children: [imagenode],
                      template: @node)
      if !@node.children_empty?
        if @node.n[:caption_before]
          newnode.prepend_child inline('figcaption', @node.children)
        else
          newnode.append_child inline('figcaption', @node.children)
        end
      end
      newnode
    end

    replace({ type: :OrderedList }) do
      block('ol', template: @node)
    end

    replace({ type: :UnorderedList }) do
      block('ul', template: @node)
    end

    replace({ type: :UlItem }) do
      block('li', template: @node)
    end

    replace({ type: :OlItem }) do
      block('li', template: @node)
    end

    replace({ type: :DefinitionList }) do
      block('dl', template: @node)
    end

    replace({ type: :DLItem }) do
      [
        block('dt', @node.p[0], n: { chop_last_space: true }),
        block('dd', @node.children)
      ]
    end

    replace({ type: :Breakline }) do
      newnode = block('br')
      newnode.body_empty = true
      newnode
    end

    replace({ type: :HeadedSection }) do
      if @node.named_params[:without_header]
        content = @node.children
      else
        content = [block("h#{@node.level}", @node.heading, ids: @node.n[:heading_id], n: { chop_last_space: true })] + @node.children
      end
      block('section', content, template: @node)
    end

    replace({ type: :CodeInline }) do
      inline('code', @node.content, line_no: @node.line_no, template: @node)
    end

    replace({ type: :PreformattedBlock }) do
      new_node = block('pre')
      if @node.codelanguage
        new_node.attrs = @node.attrs
        new_node.add_attr 'data-code-language' => [@node.codelanguage]
        new_node.classes = (@node.classes || []) << "code-#{@node.codelanguage}"
      end
      if @node.name == 'code'
        code = block('code', text(@node.content.join("\n"), raw_text: true))
        new_node.children = [code]
      else
        new_node.children = [text(@node.content.join("\n"), raw_text: true)]
      end
      if (@node.p || []).size > 0
        method = @node.n[:caption_after] ? :prepend : :append
        new_node = new_node.wrap block('div', classes: ['pre'], children: [block('p', children: @node.p.shift, classes: ['caption'])]), method
      end
      new_node
    end

    modify 'video' do
      @node.attrs ||= {}
      @node.attrs.merge!({ src: [@node.p.shift.text] })
      @node.attrs.merge!({ poster: [@node.n[:poster]] }) unless @node.n[:poster].nil?

      options = @node.p.map { |opt| opt.text.strip }
      ['autoplay', 'controls', 'loop', 'muted'].each do |attr|
        @node.attrs.merge!({ attr.to_sym => true }) if options.member? attr
      end
    end

    modify 'audio' do
      @node.attrs ||= {}
      @node.attrs.merge!({ src: [@node.p.shift.text] })
      @node.attrs.merge!({ volume: [@node.n[:volume]] }) unless @node.n[:volume].nil?
      options = @node.p.map { |opt| opt.text.strip }
      ['autoplay', 'controls', 'loop', 'muted'].each do |attr|
        @node.attrs.merge!({ attr.to_sym => true }) if options.member? attr
      end
    end
  end
  transformer.extend Util
  transformer
end