On 4 Nov 2024 06:00 +0000, from a...@strugglers.net (Andy Smith): > Installing 20+ year old software just to make sure it can never parse > HTML5 is total lunacy. There will be no support community for such a > thing for a start, so any problem you have is going to be a showstopper.
Also, it shouldn't be particularly difficult, if one is so inclined, to create a file which (short of the doctype declaration) is _simultaneously_ valid HTML 2.0 (to say nothing of HTML 4) and HTML 5. Kind of like how _by design_ anything that is valid 7-bit US-ASCII is also simultaneously valid as UTF-8 representing the same Unicode code points. Yes, later versions of HTML have _added_ quite a lot of stuff, and perhaps slightly changed the default _semantics_ of some; but very little has been _removed_. (One biggie might be <FONT>, which was deprecated as of HTML 4.01[1] and appears to be nonexistent in HTML 5[2].) [1]: https://www.w3.org/TR/html4/present/graphics.html#h-15.2.2 [2]: https://html.spec.whatwg.org/multipage/indices.html#elements-3 -- Michael Kjörling 🔗 https://michael.kjorling.se
