1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
# 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']
toc_config = context.registers[:site].config['toc'] || {}
TableOfContents::Parser.new(content_html, toc_config).build_toc
end
end
# Jekyll Table of Contents filter plugin
module TableOfContentsFilter
# Deprecated method. Removed in v1.0.
def toc_only(html)
return '' unless toc_enabled?
TableOfContents::Parser.new(html, toc_config).build_toc
end
def inject_anchors(html)
return html unless toc_enabled?
TableOfContents::Parser.new(html, toc_config).inject_anchors_into_html
end
def toc(html)
return html unless toc_enabled?
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
|
