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Instead of CSS4 subject when will XPath be supported?

http://stackoverflow.com/questions/6442 ... ining-text
http://stackoverflow.com/questions/1433 ... hild-nodes
http://stackoverflow.com/questions/1183 ... -xpath-2-0
http://stackoverflow.com/questions/1604 ... with-xpath
http://stackoverflow.com/questions/1390 ... ain-string
http://stackoverflow.com/questions/1198 ... heir-value
http://stackoverflow.com/questions/1550 ... t-in-xpath

without wheel reinvention
http://css2xpath.appspot.com/

I split off this post into its own thread, because it's an interesting request if feasible, and it didn't have much to do with its parent thread.

We're using CSS selectors because we're directly applying them to the page without any modifications and let the browser do all the hard work for us. However, we can't do that with XPath without negatively impacting element hiding performance.

greiner wrote:However, we can't do that with XPath without negatively impacting element hiding performance.

In the same way that regexp filters are slower than regular filters but

1. Sometimes there's no other way to block the item.
2. One or two slow filters won't have any noticeable impact on performance.

It looks like uBlock Origin has implemented both the :has() relational pseudo-class (formerly known as the parent-selector, new syntax inspired by jQuery) and XPath-based hiding rules: https://github.com/gorhill/uBlock/issue ... -230120248

It looks like this is the most relevant part of the code: https://github.com/gorhill/uBlock/blob/ ... ng.js#L748

Ideally, if :has() is ever widely implemented (right now no browsers implement it), the extension will be able to use this implementation as only a fallback.

lewisje wrote:It looks like uBlock Origin has implemented both the :has() relational pseudo-class (formerly known as the parent-selector, new syntax inspired by jQuery) and XPath-based hiding rules: https://github.com/gorhill/uBlock/issue ... -230120248

I needed to do a filter with has() and asked to myself if ABP was having something like that...

I ask to myself if I keep ABP and use UserScripts for more complicated filters or if I switch to uBlock origin.

The only thing I would really miss is the convenience of the list of blockable items.

Debating with myself what I should do

uBlock Origin has a logger that is quite useful, but anyway, both :has() and xpath are being considered for ABP too: https://issues.adblockplus.org/ticket/2360