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Re: problem repeat entry for a number
From: |
source liu |
Subject: |
Re: problem repeat entry for a number |
Date: |
Wed, 14 Mar 2012 16:46:13 +0800 |
> (defun p-try (&optional arg)
> "Show ARG in the echo area, as by (interactive \"p\")."
> (interactive "p")
> (message "arg is: %S" arg))
>
> (defun P-try (&optional arg)
> "Show ARG in the echo area, as by (interactive \"P\")."
> (interactive "P")
> (message "arg is: %S" arg))
>
> (global-set-key [(shift return)] 'p-try)
> (global-set-key [(meta return)] 'P-try)
>
> If you evaluate these forms in *scratch*, you can try the
> following experiments:
>
> 1. S-RET
> 2. C-u S-RET
> 3. C-u - S-RET
> 4. C-u - C-u S-RET
> (and so on)
Interesting example, maybe i could start my survey of elisp from here.
Here 4th cases the 2nd C -u serves as mutiple by 4. Right?
> C-u is a way to supply qualified numerical information, and not
> only numerical. Perhaps someone who knows its history can explain
> how it evolved to its present functionality.
Got it. no more questions on this topic for now.
> I am a student of Emacs.
You are modest!
> Thanks for the opportunity to spew. :-D
did it feel more purify of yourself after spew? :-D
--
Liu An
Institution of modern physics, Shanghai, China
- Re: problem repeat entry for a number, (continued)
- Re: problem repeat entry for a number, source liu, 2012/03/07
- Re: problem repeat entry for a number, Thien-Thi Nguyen, 2012/03/08
- Re: problem repeat entry for a number, source liu, 2012/03/08
- Re: problem repeat entry for a number, Thien-Thi Nguyen, 2012/03/08
- Re: problem repeat entry for a number, source liu, 2012/03/08
- Re: problem repeat entry for a number, Thien-Thi Nguyen, 2012/03/12
- Re: problem repeat entry for a number, source liu, 2012/03/12
- Re: problem repeat entry for a number, Thien-Thi Nguyen, 2012/03/13
- Re: problem repeat entry for a number, source liu, 2012/03/13
- Re: problem repeat entry for a number, Thien-Thi Nguyen, 2012/03/14
- Re: problem repeat entry for a number,
source liu <=
- RE: problem repeat entry for a number, Drew Adams, 2012/03/13
- Re: problem repeat entry for a number, source liu, 2012/03/13