Bug in comment-region?

Bug in comment-region?

[Thorsten Jolitz]

Hi List,

In emacs-lisp-mode, when marking lines 2 and 3 and calling M-x comment-region

,----
| ;; * WAITING foo
|      - State "WAITING"    from "TODO"       [2016-02-03 Mi 23:46] \\
|        waiting for bar
`----

I get this

,----
| ;; * WAITING foo
|      ;; - State "WAITING"    from "TODO"       [2016-02-03 Mi 23:46] \\
|      ;;   waiting for bar
`----

which looks like a bug to me - the comment chars should always be at
BOL, shouldn't they?

-- 
cheers,
Thorsten

Re: Bug in comment-region?

[Emanuel Berg]

Thorsten Jolitz <tjolitz@gmail.com> writes:

> which looks like a bug to me - the comment chars
> should always be at BOL, shouldn't they?

Not if you are to trust the `comment-region'
docstring:

    By default, the `comment-start' markers are
    inserted at the current indentation of the region

-- 
underground experts united
http://user.it.uu.se/~embe8573

Re: Bug in comment-region?

[Emanuel Berg]

Thorsten Jolitz <tjolitz@gmail.com> writes:

> which looks like a bug to me - the comment chars
> should always be at BOL, shouldn't they?

Try this:

    (setq comment-styles '(plain . (nil nil nil nil "Start comment at BOL.")))

-- 
underground experts united
http://user.it.uu.se/~embe8573

Re: Bug in comment-region?

[Thorsten Jolitz]

Emanuel Berg <embe8573@student.uu.se> writes:

> Thorsten Jolitz <tjolitz@gmail.com> writes:
>
>> which looks like a bug to me - the comment chars
>> should always be at BOL, shouldn't they?
>
> Try this:
>
>     (setq comment-styles '(plain . (nil nil nil nil "Start comment at
> BOL.")))

So its a feature not a bug, thanks for the hint. I used 

,----
| (defun outshine-comment-region (beg end &optional arg)
|        "Use comment-style that always inserts at BOL.
| Call `comment-region' with a comment-style that guarantees
|    insertion of comment-start markers at beginning-of-line."
|        (interactive "r")
|        (let ((comment-style
|               (if (member comment-style '(indent-or-triple indent))
|                   'plain
|                 comment-style)))
|          (comment-region beg end arg)))
`----

now, because normally outshine should be major-mode agnostic and just
use the comment settings of the programming mode at hand. Only tested
with Emacs Lisp though ...

-- 
cheers,
Thorsten