Vim - move rest of line to new line above

Question

How does one get from

int lel = 123; // this is a comment
               ^

to

// this is a comment
int lel = 123;

preferably when starting in insert mode, and with the right indentation?

My current way of doing it is C-c l d$ O C-c p, but as my auto-indent isn't perfect, the inserted line in not indented at all.

I think some editors use space+enter or something for this (at least I think I've seen it).

Is this possible in vim by default?

Answer 1

Still not a very pretty answer, but assuming the cursor is where the "^" is above, another option would be:

d0=:puEnter

• d0 deletes til the beginning of the line.
• = reindents over the next motion.
• :pu short for :put
• Enter to run the command.

Answer 2

I would probably use

DO<c-r>"

D deletes to the end of line. O opens the line above in insert mode (with the correct indentation). <c-r>" pastes the part that was deleted with D.

(This ends in insert mode)