Running .emacs style commands within emacs

Running .emacs style commands within emacs

[Ben Forbes]

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In my .emacs init file I have commands like

(fset 'delete-whole-line "\C-a\C-k\C-k")


How can I run a command like this from within emacs? It doesn't seem to be
recognized when I try "M-x fset".

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Re: Running .emacs style commands within emacs

[B. T. Raven]

Ben Forbes wrote:
> In my .emacs init file I have commands like
> 
> (fset 'delete-whole-line "\C-a\C-k\C-k")
> 
> 
> How can I run a command like this from within emacs? It doesn't seem to be
> recognized when I try "M-x fset".
> 


This is just the expression generated when you save a macro. Try C-h f 
'delete-whole-line and a *Help buffer will show this. You could shorten 
the macro name to 'dln and it would work the same. Try this and then 
invoke with M-x dln. So it's just go to beginning of line, kill line, 
kill newline. You can define keyboard macros and not save them if you 
need them for only one session.

Ed

Re: Running .emacs style commands within emacs

[Ben Forbes]

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Actually what I meant was, I want to run lisp forms from within emacs. Eg,
(global-set-key "\C-\M-z" 'delete-whole-line). There must be a Lisp engine
running within Emacs that interprets this form when it is in the .emacs init
file. Can I send lisp forms to this engine at any given time during an Emacs
session? I know global-set-key can be run from M-x but it's interactive, I'd
like to be able to enter the above form manually.

---------- Forwarded message ----------
From: B. T. Raven <nihil@nihilo.net>
Date: Tue, May 20, 2008 at 2:32 PM
Subject: Re: Running .emacs style commands within emacs
To: help-gnu-emacs@gnu.org


Ben Forbes wrote:

> In my .emacs init file I have commands like
>
> (fset 'delete-whole-line "\C-a\C-k\C-k")
>
>
> How can I run a command like this from within emacs? It doesn't seem to be
> recognized when I try "M-x fset".
>
>

This is just the expression generated when you save a macro. Try C-h f
'delete-whole-line and a *Help buffer will show this. You could shorten the
macro name to 'dln and it would work the same. Try this and then invoke with
M-x dln. So it's just go to beginning of line, kill line, kill newline. You
can define keyboard macros and not save them if you need them for only one
session.

Ed

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RE: Running .emacs style commands within emacs

[Drew Adams]

> Actually what I meant was, I want to run lisp forms from
> within emacs. Eg, (global-set-key "\C-\M-z" 'delete-whole-line).
> There must be a Lisp engine running within Emacs that interprets
> this form when it is in the .emacs init file. Can I send lisp
> forms to this engine at any given time during an Emacs session?
> I know global-set-key can be run from M-x but it's interactive,
> I'd like to be able to enter the above form manually.

C-M-x, with the cursor on the sexp somewhere, assuming you are in
emacs-lisp-mode. See node Lisp Eval of the Emacs manual.

P.S., use plain text, not HTML, for mail to this mailing list.

Re: Running .emacs style commands within emacs

[Ben Forbes]

>C-M-x, with the cursor on the sexp somewhere, assuming you are in
>emacs-lisp-mode. See node Lisp Eval of the Emacs manual.

> You can evaluate any lisp expression at any time (even in non lisp buffers) by putting the cursor after the last parenthesis and issuing C-x C-e

Thanks, both of those were what I was looking for.

> P.S., use plain text, not HTML, for mail to this mailing list.

Will do.

Thanks,

Ben Forbes
--



On Tue, May 20, 2008 at 10:26 PM, B. T. Raven <nihil@nihilo.net> wrote:
>
> I don't understand. It seems to me that in this context "interactive" and "manual" are about the same thing. You can evaluate any lisp expression at any time (even in non lisp buffers) by putting the cursor after the last parenthesis and issuing C-x C-e. So make 'delete-whole-line a function rather than a macro.
>
>
> Ben Forbes wrote:
>>
>> Actually what I meant was, I want to run lisp forms from within emacs. Eg,
>> (global-set-key "\C-\M-z" 'delete-whole-line). There must be a Lisp engine
>> running within Emacs that interprets this form when it is in the .emacs init
>> file. Can I send lisp forms to this engine at any given time during an Emacs
>> session? I know global-set-key can be run from M-x but it's interactive, I'd
>> like to be able to enter the above form manually.
>>
>> ---------- Forwarded message ----------
>> From: B. T. Raven <nihil@nihilo.net>
>> Date: Tue, May 20, 2008 at 2:32 PM
>> Subject: Re: Running .emacs style commands within emacs
>> To: help-gnu-emacs@gnu.org
>>
>>
>> Ben Forbes wrote:
>>
>>> In my .emacs init file I have commands like
>>>
>>> (fset 'delete-whole-line "\C-a\C-k\C-k")
>>>
>>>
>>> How can I run a command like this from within emacs? It doesn't seem to be
>>> recognized when I try "M-x fset".
>>>
>>>
>>
>> This is just the expression generated when you save a macro. Try C-h f
>> 'delete-whole-line and a *Help buffer will show this. You could shorten the
>> macro name to 'dln and it would work the same. Try this and then invoke with
>> M-x dln. So it's just go to beginning of line, kill line, kill newline. You
>> can define keyboard macros and not save them if you need them for only one
>> session.
>>
>> Ed
>>

Re: Running .emacs style commands within emacs

[B. T. Raven]

I don't understand. It seems to me that in this context "interactive" 
and "manual" are about the same thing. You can evaluate any lisp 
expression at any time (even in non lisp buffers) by putting the cursor 
after the last parenthesis and issuing C-x C-e. So make 
'delete-whole-line a function rather than a macro.


Ben Forbes wrote:
> Actually what I meant was, I want to run lisp forms from within emacs. Eg,
> (global-set-key "\C-\M-z" 'delete-whole-line). There must be a Lisp engine
> running within Emacs that interprets this form when it is in the .emacs init
> file. Can I send lisp forms to this engine at any given time during an Emacs
> session? I know global-set-key can be run from M-x but it's interactive, I'd
> like to be able to enter the above form manually.
> 
> ---------- Forwarded message ----------
> From: B. T. Raven <nihil@nihilo.net>
> Date: Tue, May 20, 2008 at 2:32 PM
> Subject: Re: Running .emacs style commands within emacs
> To: help-gnu-emacs@gnu.org
> 
> 
> Ben Forbes wrote:
> 
>> In my .emacs init file I have commands like
>>
>> (fset 'delete-whole-line "\C-a\C-k\C-k")
>>
>>
>> How can I run a command like this from within emacs? It doesn't seem to be
>> recognized when I try "M-x fset".
>>
>>
> 
> This is just the expression generated when you save a macro. Try C-h f
> 'delete-whole-line and a *Help buffer will show this. You could shorten the
> macro name to 'dln and it would work the same. Try this and then invoke with
> M-x dln. So it's just go to beginning of line, kill line, kill newline. You
> can define keyboard macros and not save them if you need them for only one
> session.
> 
> Ed
> 

Re: Running .emacs style commands within emacs

[Tim X]

"Ben Forbes" <bdforbes@gmail.com> writes:

> Actually what I meant was, I want to run lisp forms from within emacs. Eg,
> (global-set-key "\C-\M-z" 'delete-whole-line). There must be a Lisp engine
> running within Emacs that interprets this form when it is in the .emacs init
> file. Can I send lisp forms to this engine at any given time during an Emacs
> session? I know global-set-key can be run from M-x but it's interactive, I'd
> like to be able to enter the above form manually.

This is what I use the scratch buffer for. 

enter the elisp form you want to evaluate. Put the cursor at the end
and hit C-x C-e. There are many other commands that will do similar
things, but that will get you started. 

>

-- 
tcross (at) rapttech dot com dot au

Re: Running .emacs style commands within emacs

[Joel J. Adamson]

Tim X <timx@nospam.dev.null> writes:

> "Ben Forbes" <bdforbes@gmail.com> writes:
>
>> Actually what I meant was, I want to run lisp forms from within emacs. Eg,
>> (global-set-key "\C-\M-z" 'delete-whole-line). There must be a Lisp engine
>> running within Emacs that interprets this form when it is in the .emacs init
>> file. Can I send lisp forms to this engine at any given time during an Emacs
>> session? I know global-set-key can be run from M-x but it's interactive, I'd
>> like to be able to enter the above form manually.
>
> This is what I use the scratch buffer for. 
>

There's also an interactive Emacs Lisp REPL called ielm in Emacs 23
(from CVS).

M-x ielm

Joel

-- 
Joel J. Adamson
Biostatistician
Pediatric Psychopharmacology Research Unit
Massachusetts General Hospital
Boston, MA  02114
(617) 643-1432
(303) 880-3109
Public key: http://pgp.mit.edu
http://www.unc.edu/~adamsonj

Re: Running .emacs style commands within emacs

[james]

On May 19, 6:51 pm, "Ben Forbes" <bdfor...@gmail.com> wrote:
> In my .emacs init file I have commands like
>
> (fset 'delete-whole-line "\C-a\C-k\C-k")
>
> How can I run a command like this from within emacs? It doesn't seem to be
> recognized when I try "M-x fset".

M-x only allows you to run interactive commands, which fset is not.

If you want to run an arbitrary lisp expression (very useful for
giving variables buffer-local values), you can use M-x eval-expression
(bound to M-: on my emacs), then you can type in your s-expression in
the minibuffer:
   (setq c-basic-offset 3)

(or you could just type it in the buffer and C-x-e, as others have
mentioned)