ruby - How to select nodes by matching text

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ruby - How to select nodes by matching text

posted Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

ruby - How to select nodes by matching text

If I have a bunch of elements like:

<p>A paragraph <ul><li>Item 1</li><li>Apple</li><li>Orange</li></ul></p>

Is there a built-in method in Nokogiri that would get me all p elements that contain the text "Apple"? (The example element above would match, for instance).

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深蓝 · Answer 1 · 2021-10-17T00:58:26+0000

Nokogiri can do this (now) using jQuery extensions to CSS:

require 'nokogiri'

html = '
<html>
  <body>
    <p>foo</p>
    <p>bar</p>
  </body>
</html>
'

doc = Nokogiri::HTML(html)
doc.at('p:contains("bar")').text.strip
=> "bar"

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ruby - How to select nodes by matching text

ruby - How to select nodes by matching text

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