Re: vim rpn calculator

2013. november 24., vasárnap 23:14:47 UTC+1 időpontban Bee a következőt írta:
> From (linux or mac) vim I can use 'dc' a command line rpn calculator as:
>
> :!dc '-e 5 5 + 3 * p'
>
> It prints the result on the command line... THEN returns to vim.
>
> How do I return the value to vim?
>
> Is there an rpn calculator for vim?
>
> Bill

You can use the NumUtils ( http://www.vim.org/scripts/script.php?script_id=4634 ) plugin for this. Write this function to your .vimrc:

function Solver( args, NUM, matches )
return eval( a:matches.sub[ 1 ] )
endfunction

Copy the equation in to a buffer, for example:

( 5 + 5 ) * 3 = 0

... set the cursor on it, then type this in to the command prompt:

:NumUtilsCall 'MyFunc', '', '\(.*\) = !NUM!'

The result will be after the equal sign:

( 5 + 5 ) * 3 = 30

It's a portable solution, because it uses the vim to calculate the equation and you can use the builtin functions in it.

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