32 lines
760 B
Ruby
32 lines
760 B
Ruby
require 'nokogiri'
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def toc_data(page_content)
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html_doc = Nokogiri::HTML::DocumentFragment.parse(page_content)
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# get a flat list of headers
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headers = []
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html_doc.css('h1, h2, h3').each do |header|
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headers.push({
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id: header.attribute('id').to_s,
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content: header.children,
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title: header.children.to_s.gsub(/<[^>]*>/, ''),
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level: header.name[1].to_i,
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children: []
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})
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end
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[3,2].each do |header_level|
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header_to_nest = nil
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headers = headers.reject do |header|
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if header[:level] == header_level
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header_to_nest[:children].push header if header_to_nest
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true
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else
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header_to_nest = header if header[:level] < header_level
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false
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end
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end
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end
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headers
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end
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