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rubyhpricot

Hpricot parse image alt text

I am trying to pull out the alt text from all images on a page using Hpricot but can't figure out how to do it.

Has anyone done this before?

Thanks! Dennis

Solution

  • This is my first time using Hpricot so be gentle. I think this isolates the data you were asking about.

    require 'rubygems'
require 'hpricot'

page = "<html><body><p>Create a link of an image:<a href=\"default.asp\"><img src=\"smiley.gif\" alt=\"alt_text_1\" width=\"32\" height=\"32\" /></a></p><p>No border around the image, but still a link:<a href=\"default.asp\"><img border=\"0\" src=\"smiley.gif\" alt=\"alt_text_2\" width=\"32\" height=\"32\" /></a></p></body></html>"
doc = Hpricot(page)

doc.search("//img").each do |img|
    puts img.attributes['alt']
end

    Output looks like this:

    #=> alt_text_1
#=> alt_text_2