[ACCEPTED]-How do I do a regex search in Nokogiri for text that matches a certain beginning?-hpricot
Accepted answer
Use the xpath function starts-with:
value.xpath('//p[starts-with(@id, "para-")]').each { |x| puts x['id'] }
0
divs = value.css('div[id^="para-"]')
0
And some docs you're seeking:
- Nokogiri: http://nokogiri.org/
- XPath: http://www.w3.org/TR/xpath20/
- CSS3 Selectors: http://www.w3.org/TR/selectors/
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Nokogiri::XML::Node.send(:define_method, 'xpath_regex') { |*args|
xpath = args[0]
rgxp = /\/([a-z]+)\[@([a-z\-]+)~=\/(.*?)\/\]/
xpath.gsub!(rgxp) { |s| m = s.match(rgxp); "/#{m[1]}[regex(.,'#{m[2]}','#{m[3]}')]" }
self.xpath(xpath, Class.new {
def regex node_set, attr, regex
node_set.find_all { |node| node[attr] =~ /#{regex}/ }
end
}.new)
}
Usage:
divs = Nokogiri::HTML(page.root.to_html).
xpath_regex("//div[@class~=/axtarget$/]//div[@class~=/^carbo/]")
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Source:
stackoverflow.com
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