Grab first  or  src from Rich Text field I've had the unfortunate task of importing thousands of entries in to Craft from Worpdress. 

Each of the entries has a Rich Text field and within the first couple of paragraphs there is an image.

I need to use this image as the overview thumbnail on a listing page. How can I extract that image tag, or just the src attribute from it to get the url.

Example of the image tag

&lt;img class="size-full wp-image-13325" src="https://www.domain.com/news/wp-content/uploads/2015/12/image.jpg" alt="etc" width="620" height="385" /&gt;


I have tried to use the |split filter and some others with no success.

Thanks in advance for any help/direction
I had the exact same issue with a client and their horrendous Wordpress blog posts.

In the end, after importing all the posts and copying over the related images, I wrote a simple plugin that lets you use a |firstImage filter to grab the first image from a rich text field. I've added it to GitHub: https://github.com/DigitalSquid/Craft-CMS-First-Image

A rough example of how to use it:
{% set firstImage = entry.body|firstImage %}
{% if firstImage|length %}
    &lt;img src="{{ firstImage }}" /&gt;
{% endif %}