From dfa1be4ab451a4dd099ad3c140502fb0759ef832 Mon Sep 17 00:00:00 2001 From: Matt Jankowski Date: Mon, 6 Mar 2023 11:33:58 -0500 Subject: [PATCH] Remove unused TOCGenerator (#23986) --- app/lib/toc_generator.rb | 69 ---------------------------------------- 1 file changed, 69 deletions(-) delete mode 100644 app/lib/toc_generator.rb diff --git a/app/lib/toc_generator.rb b/app/lib/toc_generator.rb deleted file mode 100644 index 0c8f766ca4..0000000000 --- a/app/lib/toc_generator.rb +++ /dev/null @@ -1,69 +0,0 @@ -# frozen_string_literal: true - -class TOCGenerator - TARGET_ELEMENTS = %w(h1 h2 h3 h4 h5 h6).freeze - LISTED_ELEMENTS = %w(h2 h3).freeze - - class Section - attr_accessor :depth, :title, :children, :anchor - - def initialize(depth, title, anchor) - @depth = depth - @title = title - @children = [] - @anchor = anchor - end - - delegate :<<, to: :children - end - - def initialize(source_html) - @source_html = source_html - @processed = false - @target_html = '' - @headers = [] - @slugs = Hash.new { |h, k| h[k] = 0 } - end - - def html - parse_and_transform unless @processed - @target_html - end - - def toc - parse_and_transform unless @processed - @headers - end - - private - - def parse_and_transform - return if @source_html.blank? - - parsed_html = Nokogiri::HTML.fragment(@source_html) - - parsed_html.traverse do |node| - next unless TARGET_ELEMENTS.include?(node.name) - - anchor = node['id'] || node.text.parameterize.presence || 'sec' - @slugs[anchor] += 1 - anchor = "#{anchor}-#{@slugs[anchor]}" if @slugs[anchor] > 1 - - node['id'] = anchor - - next unless LISTED_ELEMENTS.include?(node.name) - - depth = node.name[1..-1] - latest_section = @headers.last - - if latest_section.nil? || latest_section.depth >= depth - @headers << Section.new(depth, node.text, anchor) - else - latest_section << Section.new(depth, node.text, anchor) - end - end - - @target_html = parsed_html.to_s - @processed = true - end -end