customize according to mode

customize according to mode

[Purnank]

Hello all,

I need one help.
On my system, c-indent-new-comment-line is mapped to M-j
But i want it to map c-indent-new-comment-line to "Return" when i am typing
a comment and
map "Return" to newline-and-comment when i am editing C++ file.

Also,
Sometimes there are tabs inserted in my file. and some time spaces.
If i use C-j (newline-and-comment) no tabs are inserted.
but if i use indent-region, align-entire, tabs get inserted.
Is this the default behaviour? How can i overcome it to insert spaces
explicitly.

How can i have Hungary Delete by default.

And,
Is it possible to delete trailing spaces? In some other editor i used
previously, it was possible to remove trailing spaces. The last inserted
space can be deleted from the same. Is is possible for Emacs also?

Is it possible to have bookmarks in emacs.
is it possible to insert comment block by default like,
/**
 *  <cursor is here>
 *
 * @author ....
 * @file .... some file.
 * @date ... TODAY.
 * (C) some company.
 *//* ****************************** */

Thanking You.
Purnank

Re: customize according to mode

[Greg Rowe]

Purnank wrote:
> I need one help.
> On my system, c-indent-new-comment-line is mapped to M-j
> But i want it to map c-indent-new-comment-line to "Return" when i am typing
> a comment and
> map "Return" to newline-and-comment when i am editing C++ file.

You can use hooks to make mode based customizations.  In your .emacs you 
would put something like:

(add-hook 'c-mode-hook
	(lambda ()
	(local-set-key (kbd "RET") 'c-indent-new-comment-line)))

(add-hook 'c++mode-hook
	(lambda ()
	(local-set-key (kbd "RET") 'newline-and-comment)


> Sometimes there are tabs inserted in my file. and some time spaces.
> If i use C-j (newline-and-comment) no tabs are inserted.
> but if i use indent-region, align-entire, tabs get inserted.
> Is this the default behaviour? How can i overcome it to insert spaces
> explicitly.

http://www.emacswiki.org/cgi-bin/wiki/NoTabs


> How can i have Hungary Delete by default.

(add-hook 'c-mode-hook
	(lambda ()
	(c-toggle-hungry-state 1)))

> Is it possible to delete trailing spaces? In some other editor i used
> previously, it was possible to remove trailing spaces. The last inserted
> space can be deleted from the same. Is is possible for Emacs also?

Try M-x delete-trailing-whitespace.  The documentations says it deletes 
all trailing whitespace across the current buffer.

> Is it possible to have bookmarks in emacs.

http://www.emacswiki.org/cgi-bin/wiki/BookMarks

> is it possible to insert comment block by default like,
> /**
>  *  <cursor is here>
>  *
>  * @author ....
>  * @file .... some file.
>  * @date ... TODAY.
>  * (C) some company.
>  *//* ****************************** */

http://doxymacs.sourceforge.net/

Hope this helps

-- 
Home is where the .bashrc is.

Re: customize according to mode

[Alan Mackenzie]

Purnank <ghumalia.purnank@de.bosch.com> wrote on Mon, 4 Apr 2005 11:35:58
+0200:
> Hello all,

> I need one help.
> On my system, c-indent-new-comment-line is mapped to M-j
> But i want it to map c-indent-new-comment-line to "Return" when i am typing
> a comment and
> map "Return" to newline-and-comment when i am editing C++ file.

That's what the maintainer of CC Mode (Martin Stjernholm) wanted too.  So
he wrote the command `c-context-line-break' which does exactly that.

Put the following into your .emacs:

(after-load "cc-mode"
  '(define-key c-mode-base-map "\C-m" 'c-context-line-break))

and if it does what you want, you could always send appreciation to Martin
on bug-cc-mode@gnu.org.  ;-)

> Also,
> Sometimes there are tabs inserted in my file. and some time spaces.
> If i use C-j (newline-and-comment) no tabs are inserted.
> but if i use indent-region, align-entire, tabs get inserted.
> Is this the default behaviour? How can i overcome it to insert spaces
> explicitly.

That seems strange.  Are you sure it isn't just that your indents are too
small for a tab character (by default 8 columns wide)?  Emacs does indeed
use tabs for indentation by default.  You can switch this off by setting
`indent-tabs-mode' to nil, but you have to do it in _each_ buffer.  The
best way would be to put it into a hook function.  See 8 lines below!

> How can i have Hungary Delete by default.

Don't you like Budapest?  ;-)

(defun purnank-cc-mode-hook ()
  (c-toggle-hungry-state 1)
  (setq indent-tabs-mode nil))
(add-hook 'c-mode-common-hook 'purnank-cc-mode-hook)

> And,
> Is it possible to delete trailing spaces? In some other editor i used
> previously, it was possible to remove trailing spaces. The last inserted
> space can be deleted from the same. Is is possible for Emacs also?

Of course it's possible - it's Emacs!  M-x delete-trailing-whitespace.

[ .... ]

Just as a matter of interest, all these things are documented in the
manuals which are _surely_ installed on your system too.  They're not
that difficult to use, once you get used to them.  Try this:

C-h i        ; gets you into info
m cc-mode    ; gets you to the CC Mode manual.
m command and <tab><CR> ; gets you to the "command and function index"
m c-context-line-break ; gets you to the page where that function is
                       ; defined
C-s c-context-         ; finds the actual definition.

> Thanking You.

All the best to yourself, too!

> Purnank

-- 
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: customize according to mode

[Alan Mackenzie]

Alan Mackenzie <acm@muc.de> wrote on Mon, 4 Apr 2005 17:37:43 +0000:
> Purnank <ghumalia.purnank@de.bosch.com> wrote on Mon, 4 Apr 2005 11:35:58
> +0200:

[ .... ]

> Put the following into your .emacs:

> (after-load "cc-mode"
>   '(define-key c-mode-base-map "\C-m" 'c-context-line-break))

Apologies.  That should have been

(eval-after-load "cc-mode"
 ^^^^^ 
-- 
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").