C-h m produces conflicting key binding descriptions

C-h m produces conflicting key binding descriptions

[Alan Mackenzie]

Emacs 21.1

In (the upcoming) awk-mode, if I do C-h m, the mode's key bindings
contain these four lines:

<C-M-e>         c-end-of-defun
<C-M-a>         c-beginning-of-defun

ESC C-e         c-awk-end-of-defun
ESC C-a         c-awk-beginning-of-defun

The first two are spurious, and I would not have expected to see them.
They are overshadowed by the last two.

-- 
Alan Mackenzie (Munich, Germany)
Email: aacm@muuc.dee; to decode, wherever there is a repeated letter
(like "aa"), remove half of them (leaving, say, "a").

Re: C-h m produces conflicting key binding descriptions

[Ehud Karni]

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Hash: SHA1

On 1 May 2003 21:16:11 +0200, Alan Mackenzie <none@example.invalid> wrote:
> 
> In (the upcoming) awk-mode, if I do C-h m, the mode's key bindings
> contain these four lines:
> 
> <C-M-e>         c-end-of-defun
> <C-M-a>         c-beginning-of-defun
> 
> ESC C-e         c-awk-end-of-defun
> ESC C-a         c-awk-beginning-of-defun
> 
> The first two are spurious, and I would not have expected to see them.
> They are overshadowed by the last two.

They are redundant only if M- == ESC, Normally it is, but it can be
changed by setting the `meta-prefix-char' (which I set to nil in my
.emacs). In my case M-c is different from ESC c.

Ehud.


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Re: C-h m produces conflicting key binding descriptions

[Ami Fischman]

"Ehud Karni" <ehud@unix.mvs.co.il> writes:

[...]

> They are redundant only if M- == ESC, Normally it is, but it can be
> changed by setting the `meta-prefix-char' (which I set to nil in my
> .emacs). In my case M-c is different from ESC c.

Out of curiosity, what is the meaning of a nil meta-prefix-char?  
Is it just that only ESC then gives meta- meaning (and not alt or any other
key)?  The docstring for the variable doesn't mention this explicitly.

Cheers,
-- 
  Ami Fischman
  usenet@fischman.org

Re: C-h m produces conflicting key binding descriptions

[Ehud Karni]

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On Sat, 03 May 2003 08:55:18 -0700, Ami Fischman <usenet@fischman.org> wrote:
> 
> Out of curiosity, what is the meaning of a nil meta-prefix-char?  
> Is it just that only ESC then gives meta- meaning (and not alt or any other
> key)?  The docstring for the variable doesn't mention this explicitly.

When I set meta-prefix-char to nil and do (global-set-key [M-foo] 'bar)
than the global map shows <nil> foo --> bar. The ONLY key combination 
that will execute this `bar' command is the META key + foo (together).

Ehud.


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iD8DBQE+tBSMLFvTvpjqOY0RApxjAJwOeECEzmXe/QgC+KpedlRRXZbZ0gCeIO0+
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=zXLa
-----END PGP SIGNATURE-----

Re: C-h m produces conflicting key binding descriptions

[Stefan Monnier]

>>>>> "Alan" == Alan Mackenzie <none@example.invalid> writes:
> In (the upcoming) awk-mode, if I do C-h m, the mode's key bindings
> contain these four lines:

> <C-M-e>         c-end-of-defun
> <C-M-a>         c-beginning-of-defun

> ESC C-e         c-awk-end-of-defun
> ESC C-a         c-awk-beginning-of-defun

> The first two are spurious, and I would not have expected to see them.
> They are overshadowed by the last two.

In my version of cc-mode, c-end-of-defun is not bound to anything,
and I don't have your awk-mode, so could you show us the elisp code
used to bind those commands ?  I.e. I think showing us the corresponding
`define-key' calls should be a good first step.


        Stefan