Class: Jekyll::TableOfContents::Parser

Inherits:
Object
  • Object
show all
Defined in:
lib/table_of_contents/parser.rb

Overview

Parse html contents and generate table of contents

Constant Summary collapse

PUNCTUATION_REGEXP = 
/[^\p{Word}\- ]/u

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(html) ⇒ Parser

Returns a new instance of Parser.



9
10
11
12
 
# File 'lib/table_of_contents/parser.rb', line 9

def initialize(html)
  @doc = Nokogiri::HTML::DocumentFragment.parse(html)
  @entries = parse_content
end

Instance Attribute Details

#doc ⇒ Object (readonly)

Returns the value of attribute doc.



7
8
9
 
# File 'lib/table_of_contents/parser.rb', line 7

def doc
  @doc
end

Instance Method Details

#build_toc ⇒ Object 



14
15
16
17
18
19
20
21
22
23
24
25
 
# File 'lib/table_of_contents/parser.rb', line 14

def build_toc
  toc = %(<ul class="section-nav">\n)

  min_h_num = 6
  @entries.each do |entry|
    h_num = entry[:node_name].delete('h').to_i
    min_h_num = [min_h_num, h_num].min
  end
  toc << build_lis(@entries, min_h_num)

  toc << '</ul>'
end

#inject_anchors_into_html ⇒ Object 



27
28
29
30
31
32
33
 
# File 'lib/table_of_contents/parser.rb', line 27

def inject_anchors_into_html
  @entries.each do |entry|
    entry[:content_node].add_previous_sibling(%(<a id="#{entry[:id]}#{entry[:uniq]}" class="anchor" href="##{entry[:id]}#{entry[:uniq]}" aria-hidden="true"><span class="octicon octicon-link"></span></a>))
  end

  @doc.inner_html
end

#toc ⇒ Object 



35
36
37
 
# File 'lib/table_of_contents/parser.rb', line 35

def toc
  build_toc + inject_anchors_into_html
end