如何提取<style> content from HTML file in Ruby?

Question

我已經從index.html文件復制了內容。 現在，我只想復制樣式標簽中的所有內容。 我怎樣才能做到這一點？

 file = File.open("filepath/index.html", "rb")
 @html_file_contents = file.read  //@html_file_contents has raw html from which I need to extract style tag contents.

Answer 1

您可以使用Nokogiri寶石

require 'nokogiri'

file = File.open("filepath/index.html", "rb")
page = Nokogiri::HTML(file.read)
first_style_tag = page.css('style')[0]
puts first_style_tag.text

請參閱本教程http://ruby.bastardsbook.com/chapters/html-parsing/

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