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

[Gian Maxera]

Hello Federico,
the problem is that the img tag inside the description has been escaped :-(
So, I cannot access it using a query path :-(
If you look at the content of description so can see that instead of having:
<description><img src”…”> … </description>
I have the image escaped:
<description>&lt;img src=“ … </description>

So, I think I need something like that:

XmlRole { name: “img”; query: “fn:somefunction( description/string(), ‘some 
regexp for extract’)” }

But no idea what to use, not event if it’s feasible.

Thanks,
Gianluca.


> On 3 Jun 2015, at 11:46, Federico Buti <bacaro...@gmail.com> wrote:
> 
> ​Hi Gianluca,
> 
> depending on the full XML you can query for the description tag and than 
> query for the first img tag with "[1]", something like this:
> 
> 
>          XmlListModel {
>             id: model
> 
>             query: "(/path/to/description/img)[1]"
>             XmlRole { name: "img"; query: "@src/string()" }
>         }   
> ​
> 
> Here I defined a role for the "src" attribute as a string.
> Hope that helps.
> 
> Cheers,
> 
> 
> ---
> Federico Buti
> 
> On 3 June 2015 at 11:26, Gian Maxera <gmax...@gmail.com 
> <mailto:gmax...@gmail.com>> wrote:
> Hello,
> 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>&lt;img 
> src="http://33.media.tumblr.com/bd4312958b742a21221e87c0a96d52c1/tumblr_np213siZRu1tbs1mwo1_500.gif
>  
> <http://33.media.tumblr.com/bd4312958b742a21221e87c0a96d52c1/tumblr_np213siZRu1tbs1mwo1_500.gif>"/&gt;&lt;br/&gt;
>  &lt;br/&gt;&lt;img 
> src="http://33.media.tumblr.com/6f1ca4ab1ef3d2504b2da48f2616df6e/tumblr_np213siZRu1tbs1mwo2_400.gif
>  
> <http://33.media.tumblr.com/6f1ca4ab1ef3d2504b2da48f2616df6e/tumblr_np213siZRu1tbs1mwo2_400.gif>"/&gt;&lt;br/&gt;
>  Paris Marriott Champs Elysees&lt;br/&gt;&lt;br/&gt; &lt;img 
> src="http://36.media.tumblr.com/0f4726dd2f19c8d4a042f72786987573/tumblr_np213siZRu1tbs1mwo3_500.jpg
>  
> <http://36.media.tumblr.com/0f4726dd2f19c8d4a042f72786987573/tumblr_np213siZRu1tbs1mwo3_500.jpg>"/&gt;&lt;br/&gt;
>  &lt;br/&gt;&lt;h2&gt;&lt;b&gt;Marriott Hotels in France Celebrate Earth Hour 
> 2015&lt;/b&gt;&lt;/h2&gt;&lt;p&gt;See what happened during Earth Hour 
> celebrations at Marriott hotels in France.&lt;/p&gt;</description>
> 
> What I would like is to have a XPath function that return me only the first 
> image url:
> http://33.media.tumblr.com/bd4312958b742a21221e87c0a96d52c1/tumblr_np213siZRu1tbs1mwo1_500.gif
>  
> <http://33.media.tumblr.com/bd4312958b742a21221e87c0a96d52c1/tumblr_np213siZRu1tbs1mwo1_500.gif>
> 
> How can I do that ?
> 
> Thanks,
> Gianluca.
> 
> _______________________________________________
> Interest mailing list
> Interest@qt-project.org <mailto:Interest@qt-project.org>
> http://lists.qt-project.org/mailman/listinfo/interest 
> <http://lists.qt-project.org/mailman/listinfo/interest>
> 
> 


_______________________________________________
Interest mailing list
Interest@qt-project.org
http://lists.qt-project.org/mailman/listinfo/interest