Re: Auto-indentation

[Paul Whitfield <NoSpam@iinet.net.au>]

Alan Mackenzie wrote:
> Paul Whitfield <NoSpam@iinet.net.au> wrote on Mon, 13 Feb 2006 08:26:43 +0800:
>> Alan Mackenzie wrote:
> 
> [  .... ]
> 
>>> When you type <ret>, the newline doesn't get indented.  You can make
>>> this happen by typing C-j instead of <ret>.  If you really want <ret>
>>> to indent the new line, then put this into your .emacs:
> 
>>>         (defun my-make-CR-do-indent ()
>>>           (define-key c-mode-base-map "\C-m" 'c-context-line-break))
>>>         (add-hook 'c-initialization-hook 'my-make-CR-do-indent)
>>>
> 
>> Alternatively:
> 
>> (defun my-c-mode-common-hook ()
>>    (define-key c-mode-base-map "\C-m" 'newline-and-indent))
> 
>> (add-hook 'c-mode-common-hook' my-c-mode-common-hook)
> 
> 
> 
>> This uses the generic newline-and-indent which should work
>> for even non "c" type languages.
> 
> Yes, but the binding suggested is in CC Mode's main keymap
> (c-mode-base-map), so this is irrelevant.  The command
> c-context-line-break, unlike newline-and-indent, continues comments and
> multi-line macros with comment prefixes (e.g. " * " at beginning of line)
> and backslashed newlines.

Oh... I think I will try that out!

>> Adding to the common hook means that all languages that
>> make use of CC-mode will be "auto" indented.
> 
> Yes.  I've seen your follow-up post.  ;-)  The thing about
> c-mode-common-hook is that it's executed every time you visit a new
> buffer.  You only need to bind key sequences once.  Binding them in the
> common hook isn't wrong, and doesn't noticeably delay anything, but it's
> kind of klunky.  This klunkiness was actually encouraged by the CC Mode
> manual, but newer editions have corrected this.

Goes to show you should re-visit manuals!

Thank you for correcting my wrong headedness :-)

Regards
Paul.