[Interest] Extract only src attribute of an image tag into XmlRole with XPath functions

Gianluca Massera gianluca at redberrydigital.com
Wed Jun 3 11:25:17 CEST 2015

I have an rss feed coming from Tumblr blog page.
The xml of the feed has into description a lot of html content that I want to remove and keep only the first image I found.
For example, this is one of the content into description tag:

<description><img src="http://33.media.tumblr.com/bd4312958b742a21221e87c0a96d52c1/tumblr_np213siZRu1tbs1mwo1_500.gif"/><br/> <br/><img src="http://33.media.tumblr.com/6f1ca4ab1ef3d2504b2da48f2616df6e/tumblr_np213siZRu1tbs1mwo2_400.gif"/><br/> Paris Marriott Champs Elysees<br/><br/> <img src="http://36.media.tumblr.com/0f4726dd2f19c8d4a042f72786987573/tumblr_np213siZRu1tbs1mwo3_500.jpg"/><br/> <br/><h2><b>Marriott Hotels in France Celebrate Earth Hour 2015</b></h2><p>See what happened during Earth Hour celebrations at Marriott hotels in France.</p></description>

What I would like is to have a XPath function that return me only the first image url:

How can I do that ?


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