Re: vim rpn calculator

On 2013-11-26, Bee wrote:
> ok... I am happy with this mapping for calculation:
>
> imap <silent> ,= <esc>YpI2 k <esc>A n<esc>!!dc<cr>A<space>
>
> I would like to learn to use !!dc in a function,
> but... I am lost, this does not work.
>
> function! RPN()
> let save = &lazyredraw | set lazyredraw
> normal! YpI2 k
> normal! A n
> normal! !!dc<cr>
> normal! A
> let &lazyredraw = save
> endfun
> imap <silent> ,= <esc>:call RPN()<cr>

That's because the :normal command does not understand the <>
notation. To use <cr> in a normal command, you have to prefix the <
with a \ and wrap an :execute command around it, like this.

exe "normal! !!dc\<cr>"

See

:help :execute

for more examples.

Regards,
Gary

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