Re: ELisp Interactive Calls

[mflynn]

On Friday, December 19, 2014 12:13:36 PM UTC-8, mfl...@scu.edu wrote:
> After all these years I'm trying to teach myself how to write Emacs Lisp 
> programs.
> 
> To call this function:
> 
> (defun my-test-function (arg1)
>   "DOC: Multiply two numbers."
>   (interactive "p")
>   (message "The square of the arg is: %d" (* arg1 arg1))
> )
> 
> 
> I type:
> Ctrl-U 8 Esc-x my-test-function
> 
> and 64 is printed, as I would expect.
> 
> But I'm not sure how to supply two args interactively.
> 
> (defun my-test-function (arg1 arg2)
>   "DOC: Multiply two numbers."
>   (interactive "p p")
>   (message "The product of the args is: %d" (* arg1 arg2))
> )
> 
> How do I call this?  If I type Ctrl-U 8 8 Esc-x my-test-function
> 
> the call fails with a Wrong number of args message.   The second 8 I type 
> just shows up in the scratch buffer.
> 
> Thanks

This is great.   Thank you.