Thank you so much for explaining all of that! There is some good information
there I was missing. I think the most important bit I was missing is the
post-blank stuff. I was only looking at begin->end but I think digging into the
post-blank is what makes this consistent.
I've got 2 separate questions:
1. Is the following statement true? "Two elements can count the same character
in their post-blank?"
I am seeing dual-ownership of the post-blank in the examples below, but at the
same time if I put a plain-list inside a footnote definition, the footnote
definition ends up with sole custody of the post-blank.
2. I'm still not sure about some behavior I'm seeing. I think it would be
easiest to see if we focus on exactly 1 blank line:
```
1. bar
2. baz
<---- this blank line here
ipsum
```
In this example, the blank line gets counted in the post-blank for the
plain-list but not for the item:
```
plain-list: post-blank 1 | begin 1 end 16 | contents-begin 1 contents-end 15
item: post-blank 0 | begin 1 end 8 | contents-begin 4 contents-end 8
paragraph: post-blank 0 | begin 4 end 8 | contents-begin 4 contents-end
8
item: post-blank 0 | begin 8 end 15 | contents-begin 11 contents-end 15
paragraph: post-blank 0 | begin 11 end 15 | contents-begin 11
contents-end 15
paragraph: post-blank 0 | begin 16 end 22 | contents-begin 16 contents-end 22
```
but if we take that plain-list and nest it inside another plain-list:
```
1. foo
1. bar
2. baz
<---- this blank line here
2. lorem
ipsum
```
The blank line gets counted as a post-blank for both the item "foo" and the
item "baz":
```
plain-list: post-blank 0 | begin 1 end 38 | contents-begin 1 contents-end 38
item: post-blank 1 | begin 1 end 29 | contents-begin 4 contents-end 28
paragraph: post-blank 0 | begin 4 end 8 | contents-begin 4 contents-end
8
plain-list: post-blank 0 | begin 8 end 29 | contents-begin 8
contents-end 29
item: post-blank 0 | begin 8 end 18 | contents-begin 14
contents-end 18
paragraph: post-blank 0 | begin 14 end 18 | contents-begin 14
contents-end 18
item: post-blank 1 | begin 18 end 29 | contents-begin 24
contents-end 28
paragraph: post-blank 0 | begin 24 end 28 | contents-begin 24
contents-end 28
item: post-blank 0 | begin 29 end 38 | contents-begin 32 contents-end 38
paragraph: post-blank 0 | begin 32 end 38 | contents-begin 32
contents-end 38
paragraph: post-blank 0 | begin 38 end 44 | contents-begin 38 contents-end 44
```
Meaning the post-blank did this movement:
```
plain-list: post-blank 0
item: post-blank 1 <---<----<----<-\
paragraph: post-blank 0 |
plain-list: post-blank 0 >---->--|
item: post-blank 0 |
paragraph: post-blank 0 |
item: post-blank 1 <---<---/
paragraph: post-blank 0
item: post-blank 0
paragraph: post-blank 0
paragraph: post-blank 0
```
Question ---> So why is the item "baz" gaining a post-blank instead of the
inner plain-list (bar baz) keeping that post-blank?
I would expect it to instead be:
```
plain-list: post-blank 0
item: post-blank 1
paragraph: post-blank 0
here -> plain-list: post-blank 1
item: post-blank 0
paragraph: post-blank 0
not here -> item: post-blank 0
paragraph: post-blank 0
item: post-blank 0
paragraph: post-blank 0
paragraph: post-blank 0
```
I re-did both test cases using greater blocks and lesser blocks instead of
paragraphs to make sure it wasn't that historical exception at the end of your
email, and the post-blank behavior was exactly the same.
--
Tom Alexander
