For some text objects, the difference between
<a-a> is obvious.
<a-i>( selects inside the parenthesis while
<a-a>( includes the parenthesis in the selection.
But for other text objects, the change in behavior can be missed. Recently I discovered the following cool nuance: if a number has decimals like
37.2 and your cursor is on the
<a-i>n will only select the first part before the dot
<a-a>n will select the full number.
Are there any other nice
<a-a> that you encountered? Or some that you miss (it seems that not all text objects have distinction between these 2 sub-modes)?