Re: Any automatic bracket-insertion plugins not breaking undo?

On Saturday, January 17, 2015 at 1:20:04 PM UTC-6, Bram Moolenaar wrote:
>
> Since undo works by saving the line before changing it, restricting the
> "keep undo" modifier to only work when the cursor remains in the same
> line should work. It's also fairly easy to understand, instead of
> making a list of specific commands for which undo can be kept.
>
> Note that "." to repeat the insert may not always work properly. Need
> to check that.
>

Wow. WOW! Thanks for the patch, Christian!

I tested with some fairly simple mappings, and it works perfectly!

Even repeating these mappings with '.' and inserting in visual-block insert works without issue as far as I can tell!

inoremap ( ()<C-G>U<Left>
inoremap (<SPACE> (<SPACE><SPACE>)<C-G>U<Left><C-G>U<Left>
inoremap <expr> ) strpart(getline('.'), col('.')-1, 1) == ")" ? "\<C-G>U\<Right>" : ")"

The only thing that won't work smoothly is a mapping to insert a new indented line between pairs, but it's only repeat that is broken there, and I can live with that:

inoremap <silent> {<CR> {<CR>}<Esc>zv:undojoin<CR>O

I even got a smart mapping done for paired " characters that also works with Vim comments...but that uses some complicated regex so I'll not confuse the issue here :-)

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