[whatwg] contenteditable questions

[Peter Van der Beken]

Couple of questions about 
http://www.whatwg.org/specs/web-apps/current-work/#contenteditable:

"User agents must allow users to move the caret to any position within 
an editing host, even into nested editable elements."

Does "nested editable elements" include nested editing hosts? I'm 
assuming not, otherwise there's an inconsistency when starting the caret 
move from the inner editing host vs when starting the caret move from 
the outer editing host.

"User agents must allow users to change the selection within an editing 
host, even into nested editable elements."

Same question as above, does "nested editable elements" include nested 
editing hosts?

Also, how does that interact with non-editable elements? Given the 
following:

<div contenteditable="true">
abc
<span contenteditable=false">def</span>
<span contenteditable="true">ghi</span>
</div>

If the user starts selecting from before the a to after the i, is def 
selected? And if the user deletes the selection, does that remove the 
first span too?

Peter