RE: Help on indentation

[Ludwig, Mark]

There is curious synchronicity on this topic, because my colleagues are reviewing some of my code this week and are challenging me about the spaces before the argument lists for function calls.  (They mostly use ‘vi’….)

 

Normal Emacs behavior using M-( results in the following (could be Java or C):

 

   if (foo1 (bar, baz))

      foo2 ();

 

What we want is:

 

   if (foo1(bar, baz))

      foo2();

 

That is, we only want a space to be inserted after a language keyword.  Has anyone hacked this (presumably as part of or in conjunction with CC Mode) for conditionally adding the space before the open parentheses?  The reason I expect it to be related to CC Mode is that it’s the fact that “if” is a language keyword that makes the difference, and CC Mode already knows about the keywords.  Looking at insert-parentheses and insert-pair, it seems as though insert-parentheses could be wrapped in something like cc-insert-parentheses to do this.  That’s what I’ll start doing if no one else pipes up….

 

Thanks!

Mark

 

From: Ludwig, Mark
Sent: Friday, March 30, 2012 7:36 AM
To: 'manish honap'; Nash Steve
Cc: help-gnu-emacs@gnu.org
Subject: RE: Help on indentation

 

It’s not at all clear why you needed to do this, since M-( is normally bound to insert-parentheses.  (AFAIK, it has been this way for decades.)

 

Regarding making the ‘(‘ character do this, by convention, it would be an “electric” function, and it’s probably not very hard to write.  You might even be happy just binding ‘(‘ to insert-parentheses.

 

Hope this helps,

Mark

 

From: help-gnu-emacs-bounces+ludwig.mark=siemens.com@gnu.org [mailto:help-gnu-emacs-bounces+ludwig.mark=siemens.com@gnu.org] On Behalf Of manish honap
Sent: Friday, March 30, 2012 1:00 AM
To: Nash Steve
Cc: help-gnu-emacs@gnu.org
Subject: Re: Help on indentation

 

Thanks for your help.

 

I got a hint from `http://www.emacswiki.org/emacs/LineCopyChar'

and I added,

 

(defun insert-paren-pair (&optional b)                                                                                                                     
  (interactive "p")                                                                                                                                        
  (let (p col s)                                                                                                                                           
    (setq p (point))                                                                                                                                       
    (setq col (current-column))                                                                                                                            
    (move-to-column col)                                                                                                                                   
    (goto-char p)                                                                                                                                          
    (insert " ()")                                                                                                                                         
    (goto-char (- (point) 1))))                                                                                                                            
                                                                                                                                                           
(define-key global-map (kbd "M-(") 'insert-paren-pair) 

 

to my .emacs

 

this won't solve the original problem, but for specific keywords it will suffice.

 

---

From: Nash Steve <nash11228@gmail.com>
To: manish honap <manish_honap_vit@yahoo.co.in>
Cc: "help-gnu-emacs@gnu.org" <help-gnu-emacs@gnu.org>
Sent: Friday, 30 March 2012 12:29 AM
Subject: Re: Help on indentation

 

insert-parentheses may help.

 

On Thu, Mar 29, 2012 at 6:58 AM, manish honap <manish_honap_vit@yahoo.co.in> wrote:

I have following query,

 

In cc-mode

whenever I type `(', I want emacs to automatically insert space before it,

just for symbols [if | while | for | switch] during typing;

 

How it can be done ?

 

Thanks,

Manish