* Why can't unset C-j in help mode like other modes?
@ 2008-12-15 21:22 seberino
2008-12-15 22:12 ` Drew Adams
[not found] ` <mailman.2828.1229379156.26697.help-gnu-emacs@gnu.org>
0 siblings, 2 replies; 3+ messages in thread
From: seberino @ 2008-12-15 21:22 UTC (permalink / raw)
To: help-gnu-emacs
I successfully unset C-j in other modes but the same trick doesn't
work in help mode?!? Why is that?...
(add-hook 'help-mode-hook (lambda () (define-key help-mode-map
[?
\C-j] nil)))
Chris
^ permalink raw reply [flat|nested] 3+ messages in thread
* RE: Why can't unset C-j in help mode like other modes?
2008-12-15 21:22 Why can't unset C-j in help mode like other modes? seberino
@ 2008-12-15 22:12 ` Drew Adams
[not found] ` <mailman.2828.1229379156.26697.help-gnu-emacs@gnu.org>
1 sibling, 0 replies; 3+ messages in thread
From: Drew Adams @ 2008-12-15 22:12 UTC (permalink / raw)
To: seberino, help-gnu-emacs
> I successfully unset C-j in other modes but the same trick doesn't
> work in help mode?!? Why is that?...
>
> (add-hook 'help-mode-hook
> (lambda () (define-key help-mode-map [?\C-j] nil)))
In *Help*, do `C-h k C-j'. You'll see this:
,----
| C-j runs the command View-scroll-line-forward
| which is an interactive compiled Lisp function in `view.el'.
| It is bound to RET, C-j.
`----
Or do `C-h m' and look for LFD (which is `C-j'). You'll see that it is not
listed in the description of Help mode. You'll find it under the description of
View minor mode:
,----
| RET, LFD scroll forward one line. With prefix scroll forward prefix line(s).
`----
IOW, the `C-j' binding is not in help-mode-map; it is in view-mode-map.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Why can't unset C-j in help mode like other modes?
[not found] ` <mailman.2828.1229379156.26697.help-gnu-emacs@gnu.org>
@ 2008-12-17 12:28 ` Xah Lee
0 siblings, 0 replies; 3+ messages in thread
From: Xah Lee @ 2008-12-17 12:28 UTC (permalink / raw)
To: help-gnu-emacs
On Dec 15, 2:12 pm, "Drew Adams" <drew.ad...@oracle.com> wrote:
> > I successfully unset C-j in other modes but the same trick doesn't
> > work in help mode?!? Why is that?...
>
> > (add-hook 'help-mode-hook
> > (lambda () (define-key help-mode-map [?\C-j] nil)))
>
> In *Help*, do `C-h k C-j'. You'll see this:
>
> ,----
> | C-j runs the command View-scroll-line-forward
> | which is an interactive compiled Lisp function in `view.el'.
> | It is bound to RET, C-j.
> `----
>
> Or do `C-h m' and look for LFD (which is `C-j'). You'll see that it is not
> listed in the description of Help mode. You'll find it under the description of
> View minor mode:
>
> ,----
> | RET, LFD scroll forward one line. With prefix scroll forward prefix line(s).
> `----
>
> IOW, the `C-j' binding is not in help-mode-map; it is in view-mode-map.
Adding to what Drew said...
Emacs does not have a mechanically enforced relation of mode name and
its key map name. So, xyz-mode's keymap can be anything. By
convention, it's usually “-map” appended to the value of “major-mode”.
“shell” is a example of exceptions to this. It uses comint-mode-map.
in practice, to find the map used in a major mode, you just look at
the source code and search for “-map”. The mode may be derived from
other mode, so you will look at the parent mode's source code. Also, a
mode may share keymap used by other modes.
Xah
∑ http://xahlee.org/
☄
^ permalink raw reply [flat|nested] 3+ messages in thread
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2008-12-15 21:22 Why can't unset C-j in help mode like other modes? seberino
2008-12-15 22:12 ` Drew Adams
[not found] ` <mailman.2828.1229379156.26697.help-gnu-emacs@gnu.org>
2008-12-17 12:28 ` Xah Lee
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