Well, I don't think we should dissuade anyone from discussing a possible improvement from the very beginning, especially if they are trying to address a pain point.
Though Kevin is right: CSS is a complicated subsystem, and attempting to change it, or worse, rewrite it, requires enormous effort - not only for development, but also for reviewing and most of all, testing. I also have little confidence in the CSS "spec" - not only it's a moving target, but the github shows 3.3k issues https://github.com/w3c/csswg-drafts/issues . Granted, not all of them might be applicable, but it certainly does not help. -andy From: openjfx-dev <openjfx-dev-r...@openjdk.org> on behalf of Kevin Rushforth <kevin.rushfo...@oracle.com> Date: Monday, August 26, 2024 at 11:52 To: openjfx-dev@openjdk.org <openjfx-dev@openjdk.org> Subject: Re: New CSS parser for JavaFX Lots of things might be good ideas. I'm rather skeptical of the cost / benefit of implementing a new CSS parser. This would be a large effort and run a significant risk of regression, especially since CSS is a fragile area (although parsing less so than the runtime CSS processing). -- Kevin On 8/26/2024 10:24 AM, Andy Goryachev wrote: Michael: This might be a good idea. A few questions: * can we create stylesheets programmatically without parsing (i.e. construct the token tree directly)? * would it be possible to add a diagnostic (at the moment of applyCSS()) to show the actual rule(s) being used? * are we going to track the evolution of https://www.w3.org/TR/css-syntax-3/ "spec"? * are we going to clarify the w3 "spec" (what is the value of "EOF code point"?)? * are there incompatibilities between web-style CSS and FX-style CSS? * what is the testing strategy? Thank you -andy From: openjfx-dev <openjfx-dev-r...@openjdk.org><mailto:openjfx-dev-r...@openjdk.org> on behalf of Michael Strauß <michaelstr...@gmail.com><mailto:michaelstr...@gmail.com> Date: Sunday, August 25, 2024 at 20:45 To: openjfx-dev <openjfx-dev@openjdk.org><mailto:openjfx-dev@openjdk.org> Subject: New CSS parser for JavaFX I've written up a proposal to implement a new CSS parser for JavaFX: https://gist.github.com/mstr2/f416996caf48e11193f0b6a5883a3926 The goal is not add new features at this point, but to resolve some long-standing issues with the existing CSS parsing (though if you read carefully, you might spot a new feature). I'm interested in your opinion whether this is a good idea to move forward.
