I am trying to parse some HTML with Nokogiri, but I am not getting anything back from the css or xpath methods.
require 'rubygems'
require 'open-uri'
require 'nokogiri'
doc = Nokogiri::HTML(open("http://www.google.com"))
doc.css('div').each do |div|
puts div.content
end
doc.xpath('//div').each do |div|
puts div.content
end
Nothing gets printed to the screen, so css and xpath are returning empty arrays. There are at least 100 divs in Google's homepage.
doc.to_html returns:
<!DOCTYPE html>\n\n
doc.validate returns:
[#<Nokogiri::XML::SyntaxError: no root element>]
I uninstalled Nokogiri, and reinstall开发者_JAVA百科ed libxml2 and libxslt as mentioned in "Installing Nokogiri". Everything's working now.
![Interactive visualization of a graph in python [closed]](https://www.devze.com/res/2023/04-10/09/92d32fe8c0d22fb96bd6f6e8b7d1f457.gif)
加载中,请稍侯......
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