Requiring like, a byte, for state is hardly a complex requirement.
> But also! If you do something like `# Header _bold-italic`, that italic and bold don't apply because the EOL stops the header state and retroactively cancels those bold-italic attributes.
And an IF statement or two.
> But also also! If you mismatch the order, it won't match both. Or, at least in Marked 2, if you mismatch the order on both sides of a non-attributed word, that word will get the wrong styling (`_with mismatched_* middle _attributes_`).
Fair enough, but you can't expect to get correct output if you put wrong data in, you are trying to italicize it twice. If the interpreteation was "either * or _ turns italics on/off" you'd also have not what you expected.
My complaint about markdown here is really that there are 2 ways to make italics and 2 ways to make bold text. "Just" having * for bold and _ for italics would on top of making parsing easy also make it clearer. Less typing too.
