Re: How to cancel [count] prefix?

2015-03-04 14:34 GMT+03:00 Alexey Muranov <alexey.muranov@gmail.com>:
> On 4 mars 2015, at 11:44, Jürgen Krämer <jottkaerr@googlemail.com> wrote:
>
>>> Say, i've typed '42' before a motion key, but then changed my mind and decided to use a different motion or a different count. How do i cancel '42' if i am in Visual mode? (In Normal mode i can press <Esc>, but in Visual mode this would also cancel the selection.)
>>>
>>> The only solution for Visual mode i've found so far is to press '@_'. Is there a better way?
>>>
>>> What if i've typed a wrong count in Operator-pending mode, like 'd42'?
>>
>> after you've started typing a count you can remove the last digit of the
>> count by pressing <Delete> (NOT <Backspace>), e.g., after you have typed
>> 42 as a count, pressing <Delete> twice will completely remove the count
>> and you are back in Visual mode.
>>
>> This behaviour is documented in the last sentence at ":help count".
>
> Thanks Jürgen, i haven't thought of this.
>
> In any case, if i need to cancel a count in a `vnoremap <expr> ...` mapping, for example, i do not see a better option than '@_'.
>
> For Normal and Visual modes, i plan however to remap my `<Esc>` key using something like this:
>
> function s:NVMapExpr_EscKey()
> if v:count
> return '@_'
> else
> return "\<Esc>"
> endif
> endfunction
> nnoremap <expr> <Esc> <SID>NVMapExpr_EscKey()
> vnoremap <expr> <Esc> <SID>NVMapExpr_EscKey()

I would suggest to simply do

noremap <expr> <Esc> (v:count?'@_':"\e")
onoremap <expr> <Esc> (v:count?repeat("\<LT>DEL>",len(v:count)):"\e")

. Function is an overkill here.

>
> Alexey.
>
> --
> --
> You received this message from the "vim_use" maillist.
> Do not top-post! Type your reply below the text you are replying to.
> For more information, visit http://www.vim.org/maillist.php
>
> ---
> You received this message because you are subscribed to the Google Groups "vim_use" group.
> To unsubscribe from this group and stop receiving emails from it, send an email to vim_use+unsubscribe@googlegroups.com.
> For more options, visit https://groups.google.com/d/optout.

--
--
You received this message from the "vim_use" maillist.
Do not top-post! Type your reply below the text you are replying to.
For more information, visit http://www.vim.org/maillist.php

---
You received this message because you are subscribed to the Google Groups "vim_use" group.
To unsubscribe from this group and stop receiving emails from it, send an email to vim_use+unsubscribe@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.