Hi I'm new to nokogiri and trying to parse an HTML document with a varied tree structure. Any suggestions on how to go about parsing it would be great. I'd like to capture all the text on this page.
<div class = "main"> Title</div>
<div class = "subTopic">
<span = "highlight">Sub Topic</span>Stuff
</div>
<div class = "main"> Another Title</div>
<div class = "subTopic">
<span class = "highlight">Sub Topic Title I</span>Stuff<br>
<span class = "highlight">Sub Topic Title II</span>Stuff<br>
<span class = "highlight">Sub Topic Title III</span>Stuff<br>
</div>
I tried this but it just puts out each full array and I'm not even sure how to get to the "Stuff" part.
content = Nokogiri::HTML(open(@url))
content.css('div.main').each do |m|
puts m .text
content.css('div.subTopic').each do |s|
puts s.text
content.css('span.highlight').each do |h|
puts h.text
end
end
end
Help will be appreciated.
Something like that would parse your give document structure:
Data
<div class="main"> Title</div>
<div class="subTopic">
<span class="highlight">Sub Topic</span>Stuff
</div>
<div class = "main"> Another Title</div>
<div class = "subTopic">
<span class = "highlight">Sub Topic Title I</span>Stuff<br>
<span class = "highlight">Sub Topic Title II</span>Stuff<br>
<span class = "highlight">Sub Topic Title III</span>Stuff<br>
</div>
Code:
require 'nokogiri'
require 'pp'
content = Nokogiri::HTML(File.read('text.txt'));
topics = content.css('div.main').map do |m|
topic={}
topic['title'] = m.text.strip
topic['highlights'] = m.xpath('following-sibling::div[@class=\'subTopic\'][1]').css('span.highlight').map do |h|
topic_highlight = {}
topic_highlight['highlight'] = h.text.strip
topic_highlight['text'] = h.xpath('following-sibling::text()[1]').text.strip
topic_highlight
end
topic
end
pp topics
Will print:
[{"title"=>"Title",
"highlights"=>[{"highlight"=>"Sub Topic", "text"=>"Stuff"}]},
{"title"=>"Another Title",
"highlights"=>
[{"highlight"=>"Sub Topic Title I", "text"=>"Stuff"},
{"highlight"=>"Sub Topic Title II", "text"=>"Stuff"},
{"highlight"=>"Sub Topic Title III", "text"=>"Stuff"}]}]
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