emacs ident

emacs ident

[pingved]

I  need  to create indent for code of next format (c-mode or any other
c-similar mode):

void Test(void) {
 (3space)DWORD abc;
 (4space)exit(0);
 (4space){
 (4space)(3space)DWORD a;
 (4space)(4space)exit(0);
 (4space)}
}

But emacs doesn't support this style :(
Can Developers fix this?
THX!

Re: emacs ident

[Alan Mackenzie]

Hello, pingved.

On Wed, Aug 17, 2011 at 08:04:29PM +0400, pingved@gmail.com wrote:
> I  need  to create indent for code of next format (c-mode or any other
> c-similar mode):

> void Test(void) {
>  (3space)DWORD abc;
>  (4space)exit(0);
>  (4space){
>  (4space)(3space)DWORD a;
>  (4space)(4space)exit(0);
>  (4space)}
> }

It's not entirely clear what you're asking for here.  What is the
criterion which distinguishes 3 spaces from 4 spaces (or even 7 or 8)?

> But emacs doesn't support this style :(

That's the first I've heard of it.  ;-)  If you've not done so already,
read the CC Mode manual which should have come with your Emacs.  In
particular, read the chapters "Indentation Engine Basics" and
"Customizing Indentation".  It may well be that you might have to write a
function to put on `c-special-indent-hook', depending on how unsystematic
your indentation scheme actually is.

As a matter of interest, why do you want/need such a wierd style?

> Can Developers fix this?

There's nothing broken, so there's nothing to fix.

> THX!

-- 
Alan Mackenzie (Nuremberg, Germany).

Re: emacs ident

[Nix]

On 17 Aug 2011, Alan Mackenzie stated:

> Hello, pingved.

pingved gave no answer, so I think I'll try (though I don't use this
indentation style).

> On Wed, Aug 17, 2011 at 08:04:29PM +0400, pingved@gmail.com wrote:
>> I  need  to create indent for code of next format (c-mode or any other
>> c-similar mode):
>
>> void Test(void) {
>>  (3space)DWORD abc;
>>  (4space)exit(0);
>>  (4space){
>>  (4space)(3space)DWORD a;
>>  (4space)(4space)exit(0);
>>  (4space)}
>> }
>
> It's not entirely clear what you're asking for here.  What is the
> criterion which distinguishes 3 spaces from 4 spaces (or even 7 or 8)?

From its appearance, I'd say it's whether it's a variable declaration.
i.e. where we would write

void test (int blah)
{
    int abc = blah % 2;

    if (abc)
      {
        int womble = abc / 2;
        int splotz = abc * 2;

        printf ("%i, %i\n", womble, splotz);
      }
    test_this_as_well (abc);
}

pingved would write

void test(int blah) {
   int abc = blah % 2;

    if(abc){
       int womble = abc / 2;
       int splotz = abc * 2;

        printf("%i, %i\n", womble, splotz);
    }
    test_this_as_well(abc);
}

This seems to me to require substantial language understanding in order
to reliably detect if a line is a variable declaration or not, and is
almost certainly not implementable with cc-mode. Indeed, in C++, it is
nearly impossible, as determing whether something is a variable
declaration or a function call may require either a complete view of the
whole translation unit above your current location, or, in the presence
of exported templates, a complete view of the entirety of all
translation units containing templates used by this one. This is
obviously not practical for anything as incremental as cc-mode is, even
if it contained a complete compiler for all languages under discussion.

> As a matter of interest, why do you want/need such a wierd style?

I think the idea is to make it look like indented first lines of
paragraphs in printed books. This makes some sense: emulating typography
is often a good idea (they have centuries more experience of making
things legible than do we mere programmers). But in this case it
seems... hard to do automatically.

-- 
NULL && (void)