C-M-. (find-tag-regexp) is not working

C-M-. (find-tag-regexp) is not working

[Francis Moreau]

Hello,

I have a strange behaviour with emacs23 and this key binding.

When I want to invoke 'find-tag-regexp' function with C-M-., emacs
invokes 'find-tag' instead.

However if I execute 'find-tag-regexp' manually (M-x find-tag-regexp),
it works as expected and emacs tells me that I can use C-M-. key
binding to invoke this function...

Now if I ask for a key binding description (C-h k) of C-M-., emacs
tells me:

    M-. runs the command find-tag, which is an interactive compiled
Lisp...

So it looks like when I press C-M-., emacs interprets this to M-.

Could anybody tell me why ?

Thanks

Re: C-M-. (find-tag-regexp) is not working

[Alan Mackenzie]

Francis Moreau <francis.moro@gmail.com> wrote:
> Hello,

> I have a strange behaviour with emacs23 and this key binding.

> When I want to invoke 'find-tag-regexp' function with C-M-., emacs
> invokes 'find-tag' instead.

> However if I execute 'find-tag-regexp' manually (M-x find-tag-regexp),
> it works as expected and emacs tells me that I can use C-M-. key
> binding to invoke this function...

> Now if I ask for a key binding description (C-h k) of C-M-., emacs
> tells me:

>    M-. runs the command find-tag, which is an interactive compiled
> Lisp...

> So it looks like when I press C-M-., emacs interprets this to M-.

Type C-h c (`describe-key-briefly'), followed by C-M-..  (That's C-M-.
followed by a full stop.  You don't type the full stop; I typed it to
indicate the end of my sentence.  Yikes! :-)  This will show you what
key sequence Emacs saw.

> Could anybody tell me why ?

Maybe your keyboard hasn't been set up to generate proper key codes
for C-M-.  Try C-h l `view-lossage' after typing M-. and C-M-..  This
will show you what raw key codes Emacs actually received.

Also, please tell us your operating system and environment.

> Thanks

-- 
Alan Mackenzie (Nuremberg, Germany).

Re: C-M-. (find-tag-regexp) is not working

[Francis Moreau]

Hello,

On Mar 19, 9:43 am, Alan Mackenzie <a...@muc.de> wrote:
> Type C-h c (`describe-key-briefly'), followed by C-M-..  (That's C-M-.
> followed by a full stop.  You don't type the full stop; I typed it to
> indicate the end of my sentence.  Yikes! :-)  This will show you what
> key sequence Emacs saw.
>

emacs says: "M-. runs the command find-tag"

Note that I really did type C-M-.

> Maybe your keyboard hasn't been set up to generate proper key codes
> for C-M-.  Try C-h l `view-lossage' after typing M-. and C-M-..  This
> will show you what raw key codes Emacs actually received.

it said: "ESC ." for both which is not really surprising.

So it looks like my keyboard hasn't been set up to generate proper key
codes.

Could you tell me how to do that ?

> Also, please tell us your operating system and environment.

sorry it's on Linux, Fedora 9

thanks

Re: C-M-. (find-tag-regexp) is not working

[Peter Dyballa]

Am 19.03.2009 um 11:13 schrieb Francis Moreau:

> Could you tell me how to do that ?

Run GNU Emacs as X client!

--
Greetings

   Pete

  "A designer knows he has arrived at perfection not when there is no  
longer anything to add, but when there is no longer anything to take  
away."
				– Antoine de Saint-Exupéry

Re: C-M-. (find-tag-regexp) is not working

[Nikolaj Schumacher]

Francis Moreau <francis.moro@gmail.com> wrote:

>> Also, please tell us your operating system and environment.
>
> sorry it's on Linux, Fedora 9

Are you running Emacs in a terminal?

regards,
Nikolaj Schumacher

Re: C-M-. (find-tag-regexp) is not working

[Francis Moreau]

On Mar 19, 12:28 pm, Nikolaj Schumacher <m...@nschum.de> wrote:
> Francis Moreau <francis.m...@gmail.com> wrote:
> >> Also, please tell us your operating system and environment.
>
> > sorry it's on Linux, Fedora 9
>
> Are you running Emacs in a terminal?
>

yes I use emacs -nw in a gnome terminal

Re: C-M-. (find-tag-regexp) is not working

[Teemu Likonen]

On 2009-03-19 05:45 (-0700), Francis Moreau wrote:

> yes I use emacs -nw in a gnome terminal

C-M-. doesn't work in text terminals. Ctrl+<key> combinations require
that actual control character exists for the key. There is no such
character as Ctrl+. so text terminal programs won't receive the key. I
think that only Ctrl+<a-z> and Ctrl+<space> work in terminals. Meta key
is more flexible, though.

Re: C-M-. (find-tag-regexp) is not working

[Alan Mackenzie]

Teemu Likonen <tlikonen@iki.fi> wrote:
> On 2009-03-19 05:45 (-0700), Francis Moreau wrote:

>> yes I use emacs -nw in a gnome terminal

> C-M-. doesn't work in text terminals. Ctrl+<key> combinations require
> that actual control character exists for the key. There is no such
> character as Ctrl+. so text terminal programs won't receive the key. I
> think that only Ctrl+<a-z> and Ctrl+<space> work in terminals. Meta key
> is more flexible, though.

Quick question: is a "gnome terminal" like a Linux virtual terminal when
it comes to the keyboard?  E.g., does <up> generate "ESC [ A"?

I run Emacs on a virtual terminal, and I have a keyboard enhancement
that gives me access to any key combination I need.  Perhaps this would
work for gnome terminal.

-- 
Alan Mackenzie (Nuremberg, Germany).

Re: C-M-. (find-tag-regexp) is not working

[Peter Dyballa]

Am 19.03.2009 um 19:33 schrieb Alan Mackenzie:

> I run Emacs on a virtual terminal

What is a "virtual terminal?" Are you running 'emacs -nw' in a *term*  
buffer inside GNU Emacs? Wouldn't this work?

--
Greetings

   Pete

Imbecility, n.:
	A kind of divine inspiration, or sacred fire affecting
	censorious critics of this dictionary.
			– Ambrose Bierce: _The Devil's Dictionary_

Re: C-M-. (find-tag-regexp) is not working

[Francis Moreau]

Teemu Likonen <tlikonen@iki.fi> writes:

> C-M-. doesn't work in text terminals. Ctrl+<key> combinations require
> that actual control character exists for the key. There is no such
> character as Ctrl+. so text terminal programs won't receive the key. I
> think that only Ctrl+<a-z> and Ctrl+<space> work in terminals. Meta
> key is more flexible, though.

Though C-\ and C-/ work fine.

I also noted that if I configure C-M-. as a gnome shortcut for switching
to tab 2 (for example) then it works.

-- 
Francis

Re: C-M-. (find-tag-regexp) is not working

[Alan Mackenzie]

Hi,

Peter Dyballa <Peter_Dyballa@web.de> wrote:

> Am 19.03.2009 um 19:33 schrieb Alan Mackenzie:

>> I run Emacs on a virtual terminal

> What is a "virtual terminal?" Are you running 'emacs -nw' in a *term*  
> buffer inside GNU Emacs? Wouldn't this work?

A "virtual terminal" is how you normally run Linux if you don't use
X-Windows.  <Alt>-<F1>, ..., <Alt>-<F6> switches between them, you get
to one from within X with, e.g. <Ctrl>-<Alt>-<F1>.

"-nw" is meaningless when starting Emacs from a Linux virtual terminal.

> --
> Greetings

>   Pete

-- 
Alan Mackenzie (Nuernberg).

Re: C-M-. (find-tag-regexp) is not working

[Francis Moreau]

Hello,

Alan Mackenzie <acm@muc.de> writes:

> Teemu Likonen <tlikonen@iki.fi> wrote:
>> On 2009-03-19 05:45 (-0700), Francis Moreau wrote:
>
>>> yes I use emacs -nw in a gnome terminal
>
>> C-M-. doesn't work in text terminals. Ctrl+<key> combinations require
>> that actual control character exists for the key. There is no such
>> character as Ctrl+. so text terminal programs won't receive the key. I
>> think that only Ctrl+<a-z> and Ctrl+<space> work in terminals. Meta key
>> is more flexible, though.
>
> Quick question: is a "gnome terminal" like a Linux virtual terminal when
> it comes to the keyboard?  E.g., does <up> generate "ESC [ A"?
>
> I run Emacs on a virtual terminal, and I have a keyboard enhancement
> that gives me access to any key combination I need.  Perhaps this would
> work for gnome terminal.

Could you tell me more about your "keyboard enhancement" ?

Thanks
-- 
Francis