Default select behavior

[whatyouhide]

I'm not extremely familiar with vimscript, so I'm trying to avoid defining functions in order to match my textobj. Let's assume the textobj is a word for now.

By default, from what I understood, when I do this:

'pattern': '\w\+',
'select': 'iw', 'aw'

aw and iw will behave exactly the same.
I don't know if I'm missing something, but I think it would be super useful if by default a and i would behave like vim defaults: i for the pattern match, while a for the pattern match surrounded by whitespace.

Thanks!