Contents

# frozen_string_literal: true

require 'nokogiri'
require 'table_of_contents/configuration'
require 'table_of_contents/parser'

module Jekyll
  # toc tag for Jekyll
  class TocTag < Liquid::Tag
    def render(context)
      return '' unless context.registers[:page]['toc']

      content_html = context.registers[:page].content
      ::Jekyll::TableOfContents::Parser.new(content_html).build_toc
    end
  end

  # Jekyll Table of Contents filter plugin
  module TableOfContentsFilter
    def toc_only(html)
      Jekyll.logger.warn 'Deprecation: toc_only filter is deprecated and will be remove in jekyll-toc v1.0.',
                         'Use `{% toc %}` instead of `{{ contents | toc_only }}`.'
      return '' unless toc_enabled?

      ::Jekyll::TableOfContents::Parser.new(html, toc_config).build_toc
    end

    def inject_anchors(html)
      return html unless toc_enabled?

      ::Jekyll::TableOfContents::Parser.new(html, toc_config).inject_anchors_into_html
    end

    def toc(html)
      return html unless toc_enabled?

      ::Jekyll::TableOfContents::Parser.new(html, toc_config).toc
    end

    private

    def toc_enabled?
      @context.registers[:page]['toc'] == true
    end

    def toc_config
      @context.registers[:site].config['toc'] || {}
    end
  end
end

Liquid::Template.register_filter(Jekyll::TableOfContentsFilter)
Liquid::Template.register_tag('toc', Jekyll::TocTag) # will be enabled at v1.0

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
jekyll-toc-0.12.0.rc2	lib/jekyll-toc.rb