W3C home > Mailing lists > Public > public-webapps@w3.org > October to December 2011

Re: XPath and find/findAll methods

From: Robin Berjon <robin@berjon.com>
Date: Tue, 22 Nov 2011 20:38:41 +0100
Cc: public-webapps@w3.org
Message-Id: <7B2C784A-BF4F-4B2A-BB83-ACC4DA19BA47@berjon.com>
To: Boris Zbarsky <bzbarsky@mit.edu>
On Nov 22, 2011, at 18:31 , Boris Zbarsky wrote:
> On 11/22/11 12:29 PM, Robin Berjon wrote:
>>>> d - "//div[parent::*//a]";
>>> 
>>> (d) can be done with the new subject indicator in the Selectors 4
>>> draft:   a!>  div  (syntax pending, but that's the general idea)
>> 
>> I think that the example you show selects the<a>  parent of a<div>, not<div>s that have parents containing an<a>.
> 
> Yes, that's what Tab's selector selects too.  The '!' after the 'a' is important there.

Wait, I thought I'd grasped the gist of S4 but now you're confusing me :) My reading of Tab's selector is that it
matches the <a> in <a><div/></a>. What Martin's XPath matches is the <div> in <section><div/><p><a/></p></section> (amongst many other variants). It's "all div's whose parents have an a descendent".

-- 
Robin Berjon - http://berjon.com/ - @robinberjon
Received on Tuesday, 22 November 2011 19:39:17 GMT

This archive was generated by hypermail 2.3.1 : Tuesday, 26 March 2013 18:49:49 GMT