From:    Steve Litt <slitt@???>

Date:    Thu, 2 Jan 2025 01:09:36 -0500

> Before uploading an HTML file, I make sure that:
>
> 1. It's HTML5

Can be checked with https://validator.w3.org . The Dillo browser also
checks.

> 2. It's well formed XML

Is there an automatic checker for XML?

> 3. It passes W3C validations with no errors or warnings

HTML5 =? valid HTML5
https://validator.w3.org again?

You write polyglot markup; correct?
https://en.wikipedia.org/wiki/Polyglot_(computing)#Polyglot_markup

> In an ideal world, the web would have run on an XML dialect instead
> of HTML.

Understood.

When PostScript was new there was a claim that postfix syntax was more
efficient than others for direct interpretation. Then there was a
counter-claim that machines had become fast enough to ignore
interpretation time.

Burning a resource just because it exists isn't good engineering. So
w3.org might give Display PS or NeWS serious consideration.
Technically, the capability can be added to browser in parallel to
HTML5 although business interests might oppose it.

Thx,                        ... P.

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