can_insert

Considering the default editability of the buffer, and tags that affect editability, determines whether text inserted at this would be editable.

If text inserted at this would be editable then the user should be allowed to insert text at this. insert_interactive uses this function to decide whether insertions are allowed at a given position.

Parameters:

this	an iterator
default_editability	true if text is editable by default

Returns:

whether text inserted at this would be editable