Swapping comments and code in the region

Swapping comments and code in the region

[Nick Sandow]

Hi,

I think it would be handy to have a function that made comments into 
code, and code into comments.

That is, if the region consisted of the following 2 lines:

foo();
// bar();

...they would become:

// foo();
bar();

Does anyone know of a package or command out there that does this?

Thanks

Re: Swapping comments and code in the region

[weber]

On Aug 22, 8:44 pm, Nick Sandow <njs...@internode.on.net> wrote:
> Hi,
>
> I think it would be handy to have a function that made comments into
> code, and code into comments.
>
> That is, if the region consisted of the following 2 lines:
>
> foo();
> // bar();
>
> ...they would become:
>
> // foo();
> bar();
>
> Does anyone know of a package or command out there that does this?
>
> Thanks

Something like this does the trick here:

(defun comment-invert-region (beg end)
  (interactive "r")
  (goto-char beg)
  (while (< (point-at-eol) end)
	(comment-or-uncomment-region (point-at-bol) (1+ (point-at-eol)))
	(forward-line 1)))

Cheers,
HUgo

Re: Swapping comments and code in the region

[Glauber Alex Dias Prado]

weber <hugows@gmail.com> writes:

> On Aug 22, 8:44 pm, Nick Sandow <njs...@internode.on.net> wrote:
>> Hi,
>>
>> I think it would be handy to have a function that made comments into
>> code, and code into comments.
>>
>> That is, if the region consisted of the following 2 lines:
>>
>> foo();
>> // bar();
>>
>> ...they would become:
>>
>> // foo();
>> bar();
>>
>> Does anyone know of a package or command out there that does this?
>>
>> Thanks
>
> Something like this does the trick here:
>
> (defun comment-invert-region (beg end)
>   (interactive "r")
>   (goto-char beg)
>   (while (< (point-at-eol) end)
> 	(comment-or-uncomment-region (point-at-bol) (1+ (point-at-eol)))
> 	(forward-line 1)))
>
> Cheers,
> HUgo

There is also comment-dwim , not exactly this but allows for "toggling"
of comments.

Cheers,
Glauber.

Re: Swapping comments and code in the region

[Xah]

On Aug 22, 4:44 pm, Nick Sandow <njs...@internode.on.net> wrote:
> Hi,
>
> I think it would be handy to have a function that made comments into
> code, and code into comments.
>
> That is, if the region consisted of the following 2 lines:
>
> foo();
> // bar();
>
> ...they would become:
>
> // foo();
> bar();
>
> Does anyone know of a package or command out there that does this?
>
> Thanks

there's comment-or-uncomment-region, which behaves not exactly as you
described but similar.

  Xah
∑ http://xahlee.org/

☄