Question

Within a Ruby class, I want to parse and fetch the first occurance of an image inside some text that is saved in a database. In particular, I want to collect all src attributes.

Will Nokogiri help me? How can I do it?

---

Edit1:

I wrote:

// database stuff...
doc = Nokogiri::HTML(my_html)

doc.search('img') do |img_tag|
  puts img_tag
end

But I’m not able to collect the image tags.

---

Edit2:

I found the solution:

doc.search('img').each do |img_tag|
  puts img_tag.attributes['src']
end

Answer 1

try this:

require 'nokogiri'

str = "some text <img src='/some/path' /> some another text"
doc = Nokogiri::HTML(str)
if img = doc.xpath('//img').first
    p img.attr('src')
end

See live demo here