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From: Marcin Borkowski <mbork@mbork.pl>
To: npostavs@users.sourceforge.net
Cc: 21072@debbugs.gnu.org, Stefan Monnier <monnier@iro.umontreal.ca>
Subject: bug#21072: Brave new mark-defun (and a testing tool)
Date: Fri, 21 Apr 2017 14:24:34 +0200	[thread overview]
Message-ID: <87zifa9ce5.fsf@jane> (raw)
In-Reply-To: <877f2hs1nw.fsf@users.sourceforge.net>


On 2017-04-19, at 02:04, npostavs@users.sourceforge.net wrote:

> Marcin Borkowski <mbork@mbork.pl> writes:
>
>>> Oh, right, I thought it was doing backward-comment, but the difference
>>> is that it stops at blank lines, thus the *non-redundant* looking-at
>>> call.
>>>
>>> I wonder if that's a sensible thing to do for languages that have
>>> multiline comments though, e.g. Javascript:
>>>
>>> /*
>>>
>>> This function returns 0
>>>
>>> */
>>> function foo () {
>>>     return 0;
>>> }
>>>
>>> Although we might say that such comments should have "*" on the empty lines.
>>
>> Definitely.  OTOH, what if they don't...?  I'm not sure how to detect
>> such a situation.  Any ideas?
>
>     (defun beginning-of-defun-comments (&optional arg)
>       "Move to the beginning of ARGth defun, including comments."
>       (interactive "^p")
>       (unless arg (setq arg 1))
>       (beginning-of-defun arg)
>       (while (let ((pt (prog1 (point) (forward-line -1)))
>                    (ppss (syntax-ppss)))
>                (cond ((nth 4 ppss) (goto-char (nth 8 ppss)))
>                      ((and (parse-partial-sexp
>                             (point) (line-end-position) nil t ppss)
>                            (not (bolp)) (eolp)))
>                      (t (goto-char pt) nil)))))

Still not there - I tried first on Elisp, like this:

;; A comment
(defun ...)

and it left the point at the end of the "A comment" line instead of at
the beginning...

> However there will always be some comment style that doesn't work, e.g.
>
>     // Some description followed by a blank.
>
>     function name(arg) {
>
>     }
>
> Another option is to give up the comment marking, it seems a bit
> complicated to implement and explain to users.

I'm tempted to leave it is it is in my branch.  For one, I'm a bit tired
by all this and I'd like to move on; also, as you said above, there is
little hope to do it "100% correctly", and I guess my solution may be
good enough.  (I'm pretty sure it's better than the status quo, at
least.)

I wouldn't like to resign from marking comments; I think it is pretty
useful.

So I'm going to delete the branch with the wrong name and push another
one, with the fixes we discussed earlier.

Best,

--
Marcin Borkowski





  parent reply	other threads:[~2017-04-21 12:24 UTC|newest]

Thread overview: 64+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <87o9ydrzkr.fsf@mbork.pl>
     [not found] ` <m2bmu7lwal.fsf@newartisans.com>
     [not found]   ` <87mvdriuss.fsf@mbork.pl>
     [not found]     ` <m2k28v3xp2.fsf@newartisans.com>
     [not found]       ` <87bmu6icea.fsf@mbork.pl>
     [not found]         ` <c04b44ac-8bd4-ecfa-5d2f-492135a067ad@yandex.ru>
     [not found]           ` <m2d1el29yr.fsf@newartisans.com>
2017-02-14 10:45             ` bug#21072: Brave new mark-defun (and a testing tool) Marcin Borkowski
2017-02-14 13:02               ` Dmitry Gutov
     [not found]               ` <52e67f43-edcf-09e3-5fd6-6079763fd234@yandex.ru>
2017-02-14 19:06                 ` Marcin Borkowski
     [not found]                 ` <87tw7wh9sf.fsf@mbork.pl>
     [not found]                   ` <jwvr330wp9a.fsf-monnier+gmane.emacs.devel@gnu.org>
2017-02-15  6:45                     ` Marcin Borkowski
     [not found]                     ` <87k28sdka6.fsf@jane>
2017-02-15  7:56                       ` Stefan Monnier
     [not found]                       ` <jwvh93vopsr.fsf-monnier+Inbox@gnu.org>
2017-02-15 19:18                         ` Marcin Borkowski
2017-02-15 19:27                           ` Stefan Monnier
     [not found]                           ` <jwvbmu3p88m.fsf-monnier+Inbox@gnu.org>
2017-02-16  4:40                             ` Marcin Borkowski
     [not found]                             ` <87bmu2eoji.fsf@jane>
2017-02-16 13:22                               ` Stefan Monnier
2017-02-17  8:54                                 ` Marcin Borkowski
2017-03-07 16:46                                   ` Eli Zaretskii
2017-03-07 16:50                                   ` Dmitry Gutov
2017-03-07 16:53                                     ` Eli Zaretskii
2017-03-29  6:30                                     ` Marcin Borkowski
     [not found]                                     ` <83innlgh95.fsf@gnu.org>
2017-03-29  6:30                                       ` Marcin Borkowski
     [not found]                                   ` <83o9xdghmc.fsf@gnu.org>
2017-03-29  6:34                                     ` Marcin Borkowski
     [not found]                                     ` <87o9wkoald.fsf@jane>
2017-03-31 11:18                                       ` Marcin Borkowski
2017-04-02 20:22                                         ` Glenn Morris
2017-04-07  8:26                                           ` Marcin Borkowski
2017-04-02 22:56                                         ` npostavs
     [not found]                                         ` <87k272wh8x.fsf@users.sourceforge.net>
2017-04-07  8:25                                           ` Marcin Borkowski
2017-04-07 14:41                                             ` Noam Postavsky
2017-04-18 12:35                                               ` Marcin Borkowski
2017-04-18 14:04                                                 ` Drew Adams
2017-04-18 14:38                                                   ` Eli Zaretskii
2017-04-19  0:04                                                 ` npostavs
2017-04-19  0:35                                                   ` John Mastro
2017-04-20  0:47                                                     ` John Mastro
2017-04-20 12:11                                                       ` Marcin Borkowski
2017-04-21 12:24                                                   ` Marcin Borkowski [this message]
2017-04-21 12:29                                                     ` Marcin Borkowski
2017-04-22 18:05                                                     ` npostavs
2017-04-24 12:17                                                       ` Marcin Borkowski
2017-04-24 12:52                                                         ` npostavs
2017-04-25 11:43                                                           ` Marcin Borkowski
2017-04-25 12:13                                                             ` npostavs
2017-04-25 20:49                                                             ` Noam Postavsky
2017-04-27 16:43                                                           ` Marcin Borkowski
2017-04-27 21:48                                                             ` Noam Postavsky
2017-04-30 14:49                                                               ` Marcin Borkowski
2017-04-30 15:19                                                               ` Marcin Borkowski
2017-04-30 16:10                                                                 ` Stefan Monnier
2017-04-30 18:04                                                                   ` Noam Postavsky
2017-04-30 18:46                                                                     ` Stefan Monnier
2017-04-30 19:18                                                                       ` npostavs
2017-04-30 20:09                                                                         ` Stefan Monnier
2017-04-30 21:41                                                                           ` npostavs
2017-04-30 22:03                                                                             ` Stefan Monnier
2017-04-30 22:21                                                                               ` npostavs
2017-05-03 15:20                                                                                 ` Marcin Borkowski
2017-05-03  5:27                                                                   ` Marcin Borkowski
2017-05-03  8:43                                                                     ` Michael Heerdegen
2017-05-03 12:44                                                                     ` Stefan Monnier
2017-05-09 12:39                                                               ` Marcin Borkowski
2017-05-10  2:53                                                                 ` npostavs
2017-05-10  3:15                                                                   ` Stefan Monnier
2017-05-10  3:31                                                                     ` npostavs
2017-05-10 16:31                                                                       ` Eli Zaretskii
2017-05-12  9:42                                                                   ` Marcin Borkowski
2017-05-12 20:32                                                                     ` npostavs
2017-05-14  5:13                                                                     ` Marcin Borkowski
2017-05-15  0:17                                                                       ` Glenn Morris
2017-05-16 22:38                                                                         ` npostavs
2017-05-20 22:30                                                                           ` npostavs

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