When you entered text, you cannot undo only 1 line, for example, when you press "u", all entered in last "insert" text removed.

If you add this line to vimrc

inoremap <CR> <CR>^O^[

where "^O" or "^[" is 1 char

"u" will undo (remove) only 1 line.

CommentsEdit

First idea -- write:

:inoremap <CR> <CR>a^Ox

it works, but it looks not nice.

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That mapping causes a problem if you break an existing line up, for e.g. if have the following line.

TextOnALine

pressing return in between 'Text' And 'OnALine' will give you..

Text
ananALine

The 'O' gets replaces with the 'a'.

Adding a <Left> seems to work ok for me

inoremap <CR> <CR>a<Left>^Ox

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You could also map <CR> to start a new undo sequence using <C-G>u

:inoremap <CR> <C-G>u<CR>

Chrisbra 08:51, May 13, 2010 (UTC)