[ESS] A course on Emacs
Stephen Eglen
S.J.Eglen at damtp.cam.ac.uk
Wed Jan 31 10:30:51 CET 2007
> > (This is not strictly to do with ESS, but you might learn something
> > here that will carry over to ESS...)
>
> You are right.
>
> I cannot believe that I never learned about 'M-x occur RET REGEXP RET'
> till paging thru the first set of slides!!
Great tip Charles! Yes, M-x occur is a neat way of browsing through
buffers. I've had it bound to M-o for nearly 10 years now!
Another nice package that maybe people might want to investigate is
ffap, see commentary below.
Stephen
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Commentary:
Command find-file-at-point replaces find-file. With a prefix, it
behaves exactly like find-file. Without a prefix, it first tries
to guess a default file or URL from the text around the point
(`ffap-require-prefix' swaps these behaviors). This is useful for
following references in situations such as mail or news buffers,
README's, MANIFEST's, and so on. Submit bugs or suggestions with
M-x ffap-bug.
For the default installation, add this line to your .emacs file:
(ffap-bindings) ; do default key bindings
ffap-bindings makes the following global key bindings:
C-x C-f find-file-at-point (abbreviated as ffap)
C-x C-r ffap-read-only
C-x C-v ffap-alternate-file
C-x d dired-at-point
C-x C-d ffap-list-directory
C-x 4 f ffap-other-window
C-x 4 r ffap-read-only-other-window
C-x 4 d ffap-dired-other-window
C-x 5 f ffap-other-frame
C-x 5 r ffap-read-only-other-frame
C-x 5 d ffap-dired-other-frame
S-mouse-3 ffap-at-mouse
C-S-mouse-3 ffap-menu
ffap-bindings also adds hooks to make the following local bindings
in vm, gnus, and rmail:
M-l ffap-next, or ffap-gnus-next in gnus (l == "link")
M-m ffap-menu, or ffap-gnus-menu in gnus (m == "menu")
If you do not like these bindings, modify the variable
`ffap-bindings', or write your own.
If you use ange-ftp, browse-url, complete, efs, or w3, it is best
to load or autoload them before ffap. If you use ff-paths, load it
afterwards. Try apropos {C-h a ffap RET} to get a list of the many
option variables. In particular, if ffap is slow, try these:
(setq ffap-alist nil) ; faster, dumber prompting
(setq ffap-machine-p-known 'accept) ; no pinging
(setq ffap-url-regexp nil) ; disable URL features in ffap
(setq ffap-shell-prompt-regexp nil) ; disable shell prompt stripping
ffap uses `browse-url' (if found, else `w3-fetch') to fetch URL's.
For a hairier `ffap-url-fetcher', try ffap-url.el (same ftp site).
Also, you can add `ffap-menu-rescan' to various hooks to fontify
the file and URL references within a buffer.
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