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[Luc Teirlinck]

Alan Mackenzie wrote:

    Gnu Emacs Lisp Reference Manual v. 2.7.

    There is no description of "[t]", as in

    (define-key map [t] 'isearch-other-control-char)

    on the page "Changing Key Bindings", where define-key is specified.  I
    couldn't find this information anywhere else, either.

It is explained in the section "Format of keymaps", Section 22.2 in
the printed version 2.6, m elisp m keymaps m format, if you are using
info.

Sincerely,

Luc Teirlinck.

Re: your mail

[Alan Mackenzie]

On Sat, 11 Jan 2003, Luc Teirlinck wrote:

>Alan Mackenzie wrote:
>
>    Gnu Emacs Lisp Reference Manual v. 2.7.
>
>    There is no description of "[t]", as in
>
>    (define-key map [t] 'isearch-other-control-char)
>
>    on the page "Changing Key Bindings", where define-key is specified.  I
>    couldn't find this information anywhere else, either.
>
>It is explained in the section "Format of keymaps", Section 22.2 in
>the printed version 2.6, m elisp m keymaps m format, if you are using
>info.

Really?  Maybe it got lost in the transition from versions 2.6 to 2.7.
But even so, this "[t]" is the parameter KEY to define-key, so I really think
that there should be something in define-key's specification saying how
this works - or maybe a cross reference to where the various forms of KEY
are specified.

Do you mean here the description of `(t . BINDING)' in the "Changing Key
Bindings" page?  If so, I'm still mystified as to how 

[t] 'isearch-other-control-char

gets transformed into

(t . isearch-other-control-char)

in the keymap.  I'm no nearer to finding anything helpful in the info
pages.  Thanks for the reply, though.

>Luc Teirlinck.

-- 
Alan Mackenzie (Munich, Germany)
acm@muc.de

Re: (define-key MAP [t] ...)

[Luc Teirlinck]

I mean the text:

`(t . BINDING)'
     This specifies a "default key binding"; any event not bound by
     other elements of the keymap is given BINDING as its binding.
     Default bindings allow a keymap to bind all possible event types
     without having to enumerate all of them.  A keymap that has a
     default binding completely masks any lower-precedence keymap.

in the "Format of keymaps" section.  I noticed though that I made
myself a note saying: "Use [t] for `key' to specify the default
binding" in the define-key definition of my own copy of the Elisp
manual.  Since I felt the need to remind myself of that using a note
and you seem confused by it, you are probably right that adding a
small sentence to that effect in the define-key documentation might be
useful.

Sincerely,

Luc.