Re: A few simple questions

[Marco Parrone <marc0@autistici.org>]

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Wang Yin <wang-y01@mails.tsinghua.edu.cn> writes:

> > > I have a few simple questions to ask about Emacs. They are so simple,
> > > yet it seems that I can't find them in the manual and FAQ:
> > > 
> > > 1. How can I do something like f command in vi? When I'm looking at a
> > >    line, I want to move to a charater, say 'a'. How can I do something
> > >    like "fa" in Emacs, and how to I repeat this command to go to
> > >    following a's?
> > C-s a
> > for repeated searches just type C-s  again
> 
> I don't mean that. I want something faster that doesn't need
> interaction. 
> 
> I want something just like a zap-to-char, but instead of killing the
> characters, move the pointer.

You can put this in your .emacs:

(defun go-to-char (arg char)
  "Go to ARG'th occurrence of CHAR.
Case is ignored if `case-fold-search' is non-nil in the current buffer.
Goes backward if ARG is negative; error if CHAR not found."
  (interactive "p\ncGo to char: ")
  (search-forward (char-to-string char) nil nil arg))

(define-key global-map (kbd "C-c g") 'go-to-char)

This is derived for zap-to-char.

> > > 2. How do I move like "W" in vi. That is, move to the next white space
> > >    delimited "Word"?
> > M-f alternatively for more word C-u 3 M-f
> 
> I mean how can I jump over something like "emacs-21.2.tar.gz" as a
> whole, not as 5 words. I want to jump to the next white space.

Put this in you .emacs:

(defun go-to-non-alphanum (arg)
  "Search forward for a whitespace."
  (interactive "p")
  (re-search-forward "[^A-Za-z1-9]" nil nil arg))

(define-key global-map (kbd "C-c n") 'go-to-char)

GoodBye

- -- 
Marco Parrone - marc0@autistici.org
www.autistici.org/marc0
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