Clarify following empty list items in 0.31.2

Spec
1

You removed a following sentence:

If a line containing a single - can be interpreted as an
empty [list items], it should be interpreted this way
and not as a [setext heading underline].

Ok. Now I need your clarification on the following cases.

* Text
  -
    Text

you do:

<ul>
<li>
<h2>Text</h2>
Text</li>
</ul>

And:

- List
text
-

<ul>
<li>List
text</li>
<li></li>
</ul>

What is it? Why it’s so?

You shouldn’t have deleted this sentence.

As I remember you had problems in implementation of CommonMark 0.30 with empty list items, and as I guess you just decided to solve your algorithmic problems by human words. Lol, it’s a bad idea.

2 
- List
text
-

There is no such thing as a lazy settext header. Only paragraphs can be lazy.

Consider two other, similar situations: lazy continuations that end with a single equal sign (that look like a level 1 settext header) and lazy continuations that end with a single - coming out of a quote block instead of a list.

- List
text
=

> quote
text
-

> quote
text
=

dingus link

None of these are settext headers. The ones with a - form lists, but the ones with = are just text, not headers, so there’s no ambiguity here.

3

Ok. I agree with above examples about lazy paragraphs, but:

* Text
  -
    Text

Why here I should consider second list item as a setext heading?

4

Ok, guys, you decided so, let it be so, and doesn’t matter why. Stop considering this topic.

5

https://spec.commonmark.org/0.31.2/#list-items

  1. When the first list item in a list interrupts a paragraph—that is, when it starts on a line that would otherwise count as paragraph continuation text—then (a) the lines Ls must not begin with a blank line, and (b) if the list item is ordered, the start number must be 1.