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From: Vitalie Spinu <spinuvit@gmail.com>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: Alan Mackenzie <acm@muc.de>, Tom Tromey <tom@tromey.com>,
	Dmitry Gutov <dgutov@yandex.ru>,
	emacs-devel@gnu.org
Subject: Re: [Emacs-diffs] scratch/widen-less a4ba846: Replace prog-widen with consolidating widen calls
Date: Fri, 01 Dec 2017 22:27:35 +0100	[thread overview]
Message-ID: <87bmjit9yw.fsf@galago> (raw)
In-Reply-To: <jwvtvxaz5ws.fsf-monnier+emacsdiffs@gnu.org> (Stefan Monnier's message of "Fri, 01 Dec 2017 13:03:05 -0500")


Please correct me if I am wrong but the current patch requires all modes to use
`prog-widen` and reserve `widen` to the interactive use, right? If so, this is
the opposite of the older idea of adding `hard-limits` for widening which only
multi-modes should use.

I have proposed a patch for `set-widen-limits` 1.5 years ago which still lives
in scratch/hard-narrow branch. It turned to be a pretty straightforward feat and
worked without requiring any changes of the excising elisp code.

The lengthy discussion started here:

  https://lists.gnu.org/archive/html/emacs-devel/2016-04/msg00629.html

Somewhere along the way we decided in favor of adding an extra `hard` argument
to `narrow` instead of having a new `set-widen-limits` function. That turned to
be impossible as it required backward-incompatible changes to the byte-code. I
run out of steam by then and the whole idea died :(

If adding a new function is back on the table then I think `set-widen-limits` is
a better approach than `prog-widen`. It doesn't impose new restrictions on the
existing code and it avoids introducing new types of narrowing or widening.

Unless something changed in the meanwhile, the changes to the C code to make
that work were minimal. If there is interest I can get it another shot.

  Vitalie



  reply	other threads:[~2017-12-01 21:27 UTC|newest]

Thread overview: 194+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20171129233237.27462.23351@vcs0.savannah.gnu.org>
     [not found] ` <20171129233238.504B5204F1@vcs0.savannah.gnu.org>
2017-11-30  1:53   ` [Emacs-diffs] scratch/widen-less a4ba846: Replace prog-widen with consolidating widen calls Stefan Monnier
2017-11-30  8:59     ` Dmitry Gutov
2017-11-30 10:58       ` Dmitry Gutov
2017-11-30 15:31         ` Tom Tromey
2017-11-30 21:28           ` Dmitry Gutov
2017-11-30 21:46         ` Alan Mackenzie
2017-11-30 23:03           ` [SUSPECTED SPAM] " Stefan Monnier
2017-12-01 16:07             ` Alan Mackenzie
2017-11-30 23:09           ` Dmitry Gutov
2017-12-01 15:49             ` Alan Mackenzie
2017-12-01 16:26               ` Stefan Monnier
2017-12-01 18:20                 ` Alan Mackenzie
2017-12-01 18:59                 ` Dmitry Gutov
2017-12-01 19:51                   ` Stefan Monnier
2017-12-01 20:50                     ` Dmitry Gutov
2017-12-02  2:24                       ` Stefan Monnier
2017-12-02 20:01                         ` Dmitry Gutov
2017-12-02 23:47                           ` Stefan Monnier
2017-12-03  3:38                             ` Eli Zaretskii
2017-12-03 23:43                               ` Dmitry Gutov
2017-12-04  3:38                                 ` Eli Zaretskii
2017-12-04 11:53                                   ` Dmitry Gutov
2017-12-04 16:41                                     ` Eli Zaretskii
2017-12-04 17:45                                       ` Stefan Monnier
2017-12-05  0:10                                       ` Dmitry Gutov
2017-12-03 16:42                             ` Dmitry Gutov
2017-12-03 21:23                               ` Stefan Monnier
2017-12-03 23:58                                 ` Dmitry Gutov
2017-12-01 17:06               ` Drew Adams
2017-12-01 18:03               ` Stefan Monnier
2017-12-01 21:27                 ` Vitalie Spinu [this message]
2017-12-01 21:38                   ` Dmitry Gutov
2017-12-01 22:45                 ` Alan Mackenzie
2017-12-02  2:53                   ` Stefan Monnier
2017-12-02 14:02                     ` Tom Tromey
2017-12-02 23:48                   ` Richard Stallman
2017-12-01 19:13               ` Dmitry Gutov
2017-12-01 22:35                 ` Alan Mackenzie
2017-12-01 23:24                   ` Dmitry Gutov
2017-12-02  2:47                     ` Stefan Monnier
2017-12-02 20:28                       ` Alan Mackenzie
2017-12-03  0:03                         ` Stefan Monnier
2017-12-03 12:18                           ` Alan Mackenzie
2017-12-03 16:02                             ` Dmitry Gutov
2017-12-03  3:52                         ` Dmitry Gutov
2017-12-03 14:54                           ` Alan Mackenzie
2017-12-03 18:40                             ` Stefan Monnier
2017-12-03 22:26                               ` Alan Mackenzie
2017-12-03 23:42                                 ` Stefan Monnier
2017-12-04  2:33                                   ` syntax-propertize and CC-mode (was: [Emacs-diffs] scratch/widen-less a4ba846: Replace prog-widen with consolidating widen calls) Stefan Monnier
2017-12-03 23:53                             ` [Emacs-diffs] scratch/widen-less a4ba846: Replace prog-widen with consolidating widen calls Dmitry Gutov
2017-12-02  8:27                     ` Eli Zaretskii
2017-12-02 10:50                       ` Dmitry Gutov
2017-12-02 11:10                         ` Eli Zaretskii
2017-12-02 16:41                           ` Stefan Monnier
2017-12-02 17:13                             ` Eli Zaretskii
2017-12-02 17:53                               ` Stefan Monnier
2017-12-02 18:33                                 ` Eli Zaretskii
2017-12-02 20:18                               ` Dmitry Gutov
2017-12-02 20:14                           ` Dmitry Gutov
2017-12-02 20:58                             ` Eli Zaretskii
2017-12-02 21:35                               ` Dmitry Gutov
2017-12-03 15:28                                 ` Eli Zaretskii
2017-12-03 16:35                                   ` Dmitry Gutov
2017-12-03 17:20                                     ` Eli Zaretskii
2017-12-03 19:43                                       ` Dmitry Gutov
2017-12-04 15:52                                         ` Eli Zaretskii
2017-12-04 16:35                                           ` Stefan Monnier
2017-12-04 16:56                                             ` Eli Zaretskii
2017-12-04 22:57                                               ` Dmitry Gutov
2017-12-04 23:27                                           ` Dmitry Gutov
2017-12-03 18:59                                     ` Alan Mackenzie
2017-12-03 19:25                                       ` Eli Zaretskii
2017-12-03 21:20                                         ` Alan Mackenzie
2017-12-04 16:10                                           ` Eli Zaretskii
2017-12-04 16:23                                             ` Alan Mackenzie
2017-12-04 16:48                                               ` Eli Zaretskii
2017-12-03 22:01                                       ` Stefan Monnier
2017-12-04  0:37                                       ` Dmitry Gutov
2017-12-04 15:52                                         ` Alan Mackenzie
2017-12-04 16:46                                           ` Eli Zaretskii
2017-12-05 13:08                                           ` Dmitry Gutov
2017-12-05 19:01                                             ` CC Mode in MMM Mode(s). [Was: Re: [Emacs-diffs] scratch/widen-less a4ba846: Replace prog-widen with consolidating widen calls] Alan Mackenzie
2017-12-05 23:34                                               ` Dmitry Gutov
2017-12-06 18:19                                                 ` CC Mode in MMM Mode(s) Alan Mackenzie
2017-12-07  0:21                                                   ` Dmitry Gutov
2017-12-07 19:49                                                     ` Richard Stallman
2017-12-07 23:43                                                       ` Dmitry Gutov
2017-12-08 21:36                                                         ` Richard Stallman
2017-12-09 15:20                                                           ` Dmitry Gutov
2017-12-03 21:52                                   ` [Emacs-diffs] scratch/widen-less a4ba846: Replace prog-widen with consolidating widen calls Stefan Monnier
2017-12-04  0:03                                     ` Dmitry Gutov
2017-12-04  2:24                                       ` [SUSPECTED SPAM] " Stefan Monnier
2017-12-04 10:03                                         ` Dmitry Gutov
2017-12-04 16:21                                         ` Eli Zaretskii
2017-12-04 17:12                                           ` Stefan Monnier
2017-12-04 17:40                                             ` Eli Zaretskii
2017-12-04 17:52                                               ` Stefan Monnier
2017-12-04 19:53                                                 ` Eli Zaretskii
2017-12-04 20:36                                                   ` Eli Zaretskii
2017-12-04 21:00                                                   ` Stefan Monnier
2017-12-04 21:50                                                   ` Dmitry Gutov
2017-12-06 18:41                                               ` Dmitry Gutov
2017-12-09 10:47                                                 ` Eli Zaretskii
2017-12-09 11:05                                                   ` Eli Zaretskii
2017-12-10  5:01                                                     ` Stefan Monnier
2017-12-10  6:53                                                       ` Eli Zaretskii
2017-12-10 20:08                                                         ` Stefan Monnier
2017-12-11 14:18                                                         ` Getting rid of prog-indentation-context Stefan Monnier
2017-12-11 16:18                                                           ` Eli Zaretskii
2017-12-11 17:08                                                             ` Stefan Monnier
2017-12-11 17:26                                                               ` Stefan Monnier
2017-12-11 18:02                                                               ` Eli Zaretskii
2017-12-11 18:53                                                                 ` Ingo Lohmar
2017-12-11 21:42                                                                   ` Dmitry Gutov
2017-12-09 17:56                                                   ` [SUSPECTED SPAM] Re: [Emacs-diffs] scratch/widen-less a4ba846: Replace prog-widen with consolidating widen calls John Wiegley
2017-12-10 20:19                                                     ` Dmitry Gutov
2017-12-10 20:38                                                       ` Stefan Monnier
2017-12-10 21:41                                                         ` Dmitry Gutov
2017-12-11  9:53                                                           ` Tom Tromey
2017-12-11 15:31                                                             ` Stefan Monnier
2017-12-10 20:39                                                       ` Eli Zaretskii
2017-12-10 21:39                                                         ` [SUSPECTED SPAM] Re: [Emacs-diffs] scratch/widen-less a4ab846: " John Wiegley
2017-12-10 21:43                                                           ` Dmitry Gutov
2017-12-10 21:53                                                         ` [SUSPECTED SPAM] Re: [Emacs-diffs] scratch/widen-less a4ba846: " Dmitry Gutov
2017-12-11 16:04                                                           ` Eli Zaretskii
2017-12-11 16:25                                                             ` Dmitry Gutov
2017-12-11 17:43                                                               ` Eli Zaretskii
2017-12-11 18:22                                                                 ` Eli Zaretskii
2017-12-11 20:47                                                                   ` John Wiegley
2017-12-11 21:35                                                                     ` Dmitry Gutov
2017-12-11 21:43                                                                       ` John Wiegley
2017-12-14  9:32                                                                         ` Dmitry Gutov
2017-12-14 13:20                                                                           ` Dmitry Gutov
2017-12-15 11:56                                                                             ` Dmitry Gutov
2017-12-14 14:01                                                                           ` Stefan Monnier
2017-12-14 14:17                                                                             ` Dmitry Gutov
2017-12-14 14:32                                                                               ` Stefan Monnier
2017-12-14 15:17                                                                                 ` Robert Weiner
2017-12-15 11:54                                                                                   ` Dmitry Gutov
2017-12-15 11:54                                                                                 ` Dmitry Gutov
2017-12-20  0:08                                                                           ` Dmitry Gutov
2017-12-20  2:41                                                                             ` Stefan Monnier
2017-12-20 19:13                                                                             ` John Wiegley
2017-12-20 22:30                                                                               ` Dmitry Gutov
2017-12-21  1:33                                                                                 ` John Wiegley
2017-12-21 22:07                                                                                   ` Dmitry Gutov
2017-12-21 23:49                                                                                     ` John Wiegley
2017-12-11 17:21                                                             ` Stefan Monnier
2017-12-11 18:04                                                               ` Eli Zaretskii
2017-12-11 22:20                                                                 ` Stefan Monnier
2017-12-10 22:43                                                   ` Dmitry Gutov
2017-12-10 23:30                                                   ` Dmitry Gutov
2017-12-11  0:26                                                     ` Dmitry Gutov
2017-12-04 21:46                                             ` Dmitry Gutov
2017-12-04 22:05                                               ` Stefan Monnier
2017-12-04 22:45                                                 ` Dmitry Gutov
2017-12-05  6:03                                                   ` Eli Zaretskii
2017-12-05 10:42                                                     ` Dmitry Gutov
2017-12-05 17:49                                                       ` Eli Zaretskii
2017-12-04 16:12                                     ` Eli Zaretskii
2017-12-04 16:49                                       ` Stefan Monnier
2017-12-04 17:28                                         ` Eli Zaretskii
2017-12-04 21:52                                           ` Dmitry Gutov
2017-12-05  5:08                                             ` Eli Zaretskii
2017-12-05  5:33                                               ` Eli Zaretskii
2017-12-05 10:55                                                 ` Dmitry Gutov
2017-12-05 17:53                                                   ` Eli Zaretskii
2017-12-05 18:40                                                     ` Dmitry Gutov
2017-12-05 20:49                                                       ` Eli Zaretskii
2017-12-05 23:16                                                         ` Dmitry Gutov
2017-12-06  9:28                                                           ` Eli Zaretskii
2017-12-06 13:36                                                             ` Dmitry Gutov
2017-12-08 16:41                                                               ` Eli Zaretskii
2017-12-09 15:17                                                                 ` Dmitry Gutov
2017-12-09 15:43                                                                   ` Eli Zaretskii
2017-12-10 19:59                                                                     ` Dmitry Gutov
2017-12-10 20:04                                                                       ` Eli Zaretskii
2017-12-05 12:55                                               ` Dmitry Gutov
2017-12-05 17:57                                                 ` Eli Zaretskii
2017-12-05 18:54                                                   ` Dmitry Gutov
2017-12-05 20:48                                                     ` Eli Zaretskii
2017-12-05 21:08                                                       ` Ingo Lohmar
2017-12-06  9:26                                                         ` Eli Zaretskii
2017-12-06 13:37                                                       ` Dmitry Gutov
2017-12-15 15:48 Wedler, Christoph
2017-12-16 15:00 ` Stefan Monnier
2017-12-16 17:34 ` Dmitry Gutov
2017-12-18 12:39   ` Wedler, Christoph
2017-12-18 14:50     ` Dmitry Gutov
2017-12-18 17:41       ` Wedler, Christoph
2017-12-19  0:27         ` Dmitry Gutov
2017-12-19 11:27           ` Wedler, Christoph
2017-12-20  0:07             ` Dmitry Gutov

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