What I meant is that you don't expect PNG or JPEG images to be created in a way that the parser needs to run a complex process to reconstruct the bits that are broken and interpret what you meant to say. Like this one:
https://html.spec.whatwg.org/multipage/parsing.html#adoption...
Perhaps a better example is a C program being compiled into an executable. You don't expect the compiler to guess what you meant while parsing.
The current expectation is that a web browser must load any broken HTML and still display what it can, and is this expectation what I would like to change.
I don't propose humans to write this format directly (although it should be human readable), but compile it from something that is easy to write, like Markdown or a similar language. The objective is to enforce tools that make the transformation to produce a strictly conformant document.
Having a context-free grammar allows simple and fast parsing tools that can process your document, in a similar way that you can query or manipulate a JSON file with tools like jq because the grammar is simple and strict.
