TAB

TAB

[David Rasmussen]

When I edit java-files, most of the times emacs inserts spaces when I 
press TAB to indent something. But sometimes I've found it inserts a TAB 
character instead. Why? How can I turn it off? I never want TAB 
characters when editing Java or C++ source code files.

/David

Re: TAB

[Kevin Rodgers]

David Rasmussen wrote:

> When I edit java-files, most of the times emacs inserts spaces when I 
> press TAB to indent something. But sometimes I've found it inserts a TAB 
> character instead. Why?


C-h v indent-tabs-mode

> How can I turn it off? I never want TAB 
> characters when editing Java or C++ source code files.

(setq-default indent-tabs-mode nil)	; for all modes, or

(add-hook 'java-mode-hook		; for just java mode
	  (lambda () (setq indent-tabs-mode nil)))

-- 
Kevin Rodgers

Re: TAB

[Dan Anderson]

On Mon, 2003-11-17 at 12:31, Kevin Rodgers wrote:
> David Rasmussen wrote:
> 
> > When I edit java-files, most of the times emacs inserts spaces when I 
> > press TAB to indent something. But sometimes I've found it inserts a TAB 
> > character instead. Why?
> 
> 
> C-h v indent-tabs-mode
> 
> > How can I turn it off? I never want TAB 
> > characters when editing Java or C++ source code files.
> 
> (setq-default indent-tabs-mode nil)	; for all modes, or
> 
> (add-hook 'java-mode-hook		; for just java mode
> 	  (lambda () (setq indent-tabs-mode nil)))

That tells him how to turn of tabs.  Is there any way to change tabs to
spaces?  i.e. when tabbing insert 4 spaces instead of a tab (if tabs
default to 4 spaces long)?

-Dan

Re: TAB

[jan]

Dan Anderson <dan@mathjunkies.com> writes:

> That tells him how to turn of tabs.  Is there any way to change tabs
> to spaces?  i.e. when tabbing insert 4 spaces instead of a tab (if
> tabs default to 4 spaces long)?

You can change tabs to spaces with `untabify' and back with `tabify'

-- 
jan

Re: TAB

[Kevin Rodgers]

Dan Anderson wrote:

> On Mon, 2003-11-17 at 12:31, Kevin Rodgers wrote:
>>David Rasmussen wrote:
>>
>>>When I edit java-files, most of the times emacs inserts spaces when I 
>>>press TAB to indent something. But sometimes I've found it inserts a TAB 
>>>character instead. Why?
>>
>>C-h v indent-tabs-mode
>>
>>>How can I turn it off? I never want TAB 
>>>characters when editing Java or C++ source code files.
>>>
>>(setq-default indent-tabs-mode nil)	; for all modes, or
>>
>>(add-hook 'java-mode-hook		; for just java mode
>>	  (lambda () (setq indent-tabs-mode nil)))
> 
> That tells him how to turn of tabs.  Is there any way to change tabs to
> spaces?  i.e. when tabbing insert 4 spaces instead of a tab (if tabs
> default to 4 spaces long)?

I don't even know what you mean by "turn off tabs".  Setting indent-tabs-mode

to nil does exactly what its doc string says: the TAB key, which is bound to
c-indent-command, will always insert spaces and never insert tab characters:

| TAB runs the command c-indent-command
|    which is an interactive compiled Lisp function in `cc-cmds'.
| (c-indent-command &optional ARG)
|
| Indent current line as C code, and/or insert some whitespace.
...
|  [*] The amount and kind of whitespace inserted is controlled by the
|  variable `c-insert-tab-function', which is called to do the actual
|  insertion of whitespace.  Normally the function in this variable
|  just inserts a tab character, or the equivalent number of spaces,
|  depending on the variable `indent-tabs-mode'.


-- 
Kevin Rodgers

Re: TAB

[Sean Richards]

Dan Anderson <dan@mathjunkies.com> writes:

> On Mon, 2003-11-17 at 12:31, Kevin Rodgers wrote:
>> David Rasmussen wrote:
>> 
>> > When I edit java-files, most of the times emacs inserts spaces when I 
>> > press TAB to indent something. But sometimes I've found it inserts a TAB 
>> > character instead. Why?
>> 
>> 
>> C-h v indent-tabs-mode
>> 
>> > How can I turn it off? I never want TAB 
>> > characters when editing Java or C++ source code files.
>> 
>> (setq-default indent-tabs-mode nil)	; for all modes, or
>> 
>> (add-hook 'java-mode-hook		; for just java mode
>> 	  (lambda () (setq indent-tabs-mode nil)))
>
> That tells him how to turn of tabs.  Is there any way to change tabs to
> spaces?  i.e. when tabbing insert 4 spaces instead of a tab (if tabs
> default to 4 spaces long)?

I use in my ~/.emacs
 
(setq-default tab-width 4)
(setq-default indent-tabs-mode nil)

That makes Emacs insert 4 spaces instead of a tab. 

>From the Emacs manual  ....

Tabs vs. Spaces
===============

   Emacs normally uses both tabs and spaces to indent lines.  If you
prefer, all indentation can be made from spaces only.  To request this,
set `indent-tabs-mode' to `nil'.  This is a per-buffer variable, so
altering the variable affects only the current buffer, but there is a
default value which you can change as well.  *Note Locals::.

Sean

-- 
"Hver sin smak", sa vintapperen, han drakk mens de andre sloss.

Re: TAB

[David Rasmussen]

Kevin Rodgers wrote:

> 
> C-h v indent-tabs-mode
> 

Thanks.

> 
> (setq-default indent-tabs-mode nil)    ; for all modes, or
> 
> (add-hook 'java-mode-hook        ; for just java mode
>       (lambda () (setq indent-tabs-mode nil)))
> 

Hmm. OK. Is there a place I can read about the .emacs configuration 
file? I realize that it is elisp (which I don't know much about, let 
alone Lisp), but where can I read about the most important idioms of the 
.emacs configuration file, and just enough for this purpose about elisp?

/David

Re: TAB

[Eli Zaretskii]

> From: David Rasmussen <david.rasmussen@gmx.net>
> Newsgroups: gnu.emacs.help
> Date: Wed, 19 Nov 2003 10:42:05 +0100
> 
> Hmm. OK. Is there a place I can read about the .emacs configuration 
> file?

The Emacs manual has a section about that.

Re: TAB

[Dan Anderson]

While looking for something completely unrelated in the Emacs manual I
found:


Tabs vs. Spaces
===============

   Emacs normally uses both tabs and spaces to indent lines.  If you
prefer, all indentation can be made from spaces only.  To request this,
set `indent-tabs-mode' to `nil'.  This is a per-buffer variable, so
altering the variable affects only the current buffer, but there is a
default value which you can change as well.  *Note Locals::.

   There are also commands to convert tabs to spaces or vice versa,
always preserving the columns of all nonblank text.  `M-x tabify' scans
the region for sequences of spaces, and converts sequences of at least
three spaces to tabs if that can be done without changing indentation.
`M-x untabify' changes all tabs in the region to appropriate numbers of
spaces.

TAB

[Ido Magal]

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With TAB being overloaded with visibility cycling, how do I insert a regular
tab (\t) ?

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Re: TAB

[Samuel Wales]

C-q

-- 
The Kafka Pandemic: http://thekafkapandemic.blogspot.com
I support the Whittemore-Peterson Institute (WPI)
===
Extreme bigotry against people with serious diseases is still extreme bigotry.

Re: TAB

[Darlan Cavalcante Moreira]

Try C-q TAB.

C-q inserts the next character literally. This is useful to insert control
characters.

--
Darlan

At Mon, 30 May 2011 10:07:29 -0700,
Ido Magal <ido@idomagal.com> wrote:
> 
> [1  <text/plain; UTF-8 (7bit)>]
> With TAB being overloaded with visibility cycling, how do I insert a regular
> tab (\t) ?
> [2  <text/html; UTF-8 (7bit)>]
> 

Re: TAB

[Ido Magal]

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Perfect! Thanks!

To the powers that be I'd recommend adding a note, explaining how to get a
literal TAB, in the following two places:

http://orgmode.org/manual/Visibility-cycling.html
http://orgmode.org/orgcard.txt

These are the top results for googling "orgmode tab"

Cheers!


On Mon, May 30, 2011 at 11:27, Darlan Cavalcante Moreira
<darcamo@gmail.com>wrote:

>
> Try C-q TAB.
>
> C-q inserts the next character literally. This is useful to insert control
> characters.
>
> --
> Darlan
>
> At Mon, 30 May 2011 10:07:29 -0700,
> Ido Magal <ido@idomagal.com> wrote:
> >
> > [1  <text/plain; UTF-8 (7bit)>]
> > With TAB being overloaded with visibility cycling, how do I insert a
> regular
> > tab (\t) ?
> > [2  <text/html; UTF-8 (7bit)>]
> >
>
>

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Re: TAB

[Michael Markert]

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On 30 May 2011, Ido Magal wrote:
> Perfect! Thanks!
>
> To the powers that be I'd recommend adding a note, explaining how to
> get a literal TAB, in the following two places:
>
> http://orgmode.org/manual/Visibility-cycling.html
> http://orgmode.org/orgcard.txt
>
> These are the top results for googling "orgmode tab"

Well the point is, that it isn't whatsoever related to orgmode but to
Emacs. And searching for `emacs insert tab' gives helpful results
already in the first hit.

Michael

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Re: TAB

[Ido Magal]

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On Mon, May 30, 2011 at 15:14, Michael Markert <
markert.michael@googlemail.com> wrote:
>
>
> Well the point is, that it isn't whatsoever related to orgmode but to
> Emacs. And searching for `emacs insert tab' gives helpful results
> already in the first hit.
>
>
Fair enough.  It never occurred to me that emacs might not support the
native literal TAB. Thanks.

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Re: TAB

[Ben Finney]

Ido Magal <ido@idomagal.com> writes:

> Fair enough. It never occurred to me that emacs might not support the
> native literal TAB. Thanks.

Emacs does, in its Fundamental mode and many others. But just about
every interesting mode will map the TAB key to something else. So the
issue is a common one for all Emacs users, not special to Org mode.

-- 
 \     “Anyone who is not shocked by quantum theory has not understood |
  `\                                                  it.” —Niels Bohr |
_o__)                                                                  |
Ben Finney

Re: TAB

[Joe Corneli]

I think the following explains how to do what you want. BTW I don't
write java code, but I was thinking that a similar feature for lisp
might be nice. It seems to be harder to find that information (at
least on this computer...).


C-x C-f sample.java RET
C-h k C-i

*snip snip*
The amount and kind of whitespace inserted is controlled by the
variable `c-insert-tab-function', which is called to do the actual
insertion of whitespace.  Normally the function in this variable
just inserts a tab character, or the equivalent number of spaces,
depending on the variable `indent-tabs-mode'.
                           ================

C-h v indent-tabs-mode RET

*snip snip*
indent-tabs-mode's value is t

Documentation:
*Indentation can insert tabs if this is non-nil.
Setting this variable automatically makes it local to the current buffer.

Re: Tab

[Alexander Koptelov]

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>>>>> "fxn" == F Xavier Noria <fxn@isoco.com> writes:

    fxn> On Tue, 19 Mar 2002 14:05:11 +0530
    fxn> Praveen D V <praveend@sasken.com> wrote:

    fxn> : Is it possible to see <TAB> characters, like ^I, in Emacs??

    fxn> I used glyph-highlight for that, but the link in the Emacs Lisp List
    fxn> seems to be broken and I cleaned this hard disk recently :-(. Anyone
    fxn> keeps a copy of the source?

Here it is.


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I haven't found it in gnu.emacs.sources (strange =\), but message with this
file attached can be found at

http://wuarchive.wustl.edu/usenet/gnu.emacs.sources/articles/6203482.Z

    fxn> -- fxn

Best regards    

    fxn> _______________________________________________ Help-gnu-emacs mailing
    fxn> list Help-gnu-emacs@gnu.org
    fxn> http://mail.gnu.org/mailman/listinfo/help-gnu-emacs

-- 
Alexander Koptelov
Institute for System Programming, Russian Academy of Sciences
e-mail: steve@ispras.ru
icq:    36208499