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* Re: [Emacs-diffs] scratch/widen-less a4ba846: Replace prog-widen with consolidating widen calls
@ 2017-12-15 15:48 Wedler, Christoph
  2017-12-16 15:00 ` Stefan Monnier
  2017-12-16 17:34 ` Dmitry Gutov
  0 siblings, 2 replies; 115+ messages in thread
From: Wedler, Christoph @ 2017-12-15 15:48 UTC (permalink / raw)
  To: Dmitry Gutov, Eli Zaretskii, monnier@iro.umontreal.ca,
	emacs-devel@gnu.org

Sorry for not having followed this discussion earlier - as the one who
has somehow introduced `prog-indentation-context', I probably should have...

If it works and you tell me how to do it, I have no issues with an
alternative way to make the indentation function of a "sub mode" work
for code chunks inside an "outer language" (like ANTLR grammar files).

I you want to try some ANTLR grammar examples yourself, I would
recommend:

 - antlr-mode 3.1.4
   from https://sourceforge.net/projects/antlr-mode/files/

 - example grammar files, especially lines 46 to 51 in
   https://github.com/antlr/examples-v3/blob/master/Python/C/C.g

 - and others in that repo (mentioned in line 100 of antlr-mode.el)

Now to the elements in `prog-indentation-context':

 - FIRST-COLUMN: I understood that you want to keep (s/th like) that...

 - (START . END) = the region of the code chunk: well, some indentation
   engines got confused to see unknown code before code written in the
   "sub-modes" - for some I could do `narrow-to-region' myself, other
   engines did widen, like python.  IMHO, modes with widening provide a
   better indentation experience than those without, see below.

 - PREVIOUS-CHUNKS: well, I was told to introduce this to be more
   general... - some modes (like cc-mode) could be told that the code is
   not some usual "top-level" code, but just some "normal statement".
   (antlr-mode includes some ugly hack for cc-mode).

If all this is covered by a better way - fine with me!  Even if does not cover
PREVIOUS-CHUNKS…

Now to a mode with non-widening indentation function: emacs-lisp mode:

Consider the following code
    (defun foo ()
      (+ 1 3))

I would assume that the indentation of line 2 does not change
when I narrow to line 2 - but Emacs-25.1.1 now deletes the first 2
spaces of line 2...  (yes; I also need to update to a newer Emacs)

- Christoph

P.S. antlr-mode 3.1.5 will have docstrings for all function and
variables - just the last 100 lines are missing.  After that, I need to
adapt it to "the new way" and it could replace the very old antlr-mode
in Emacs (or move it to ELPA or whatever you like).




^ permalink raw reply	[flat|nested] 115+ messages in thread
[parent not found: <20171129233237.27462.23351@vcs0.savannah.gnu.org>]

end of thread, other threads:[~2017-12-20  0:07 UTC | newest]

Thread overview: 115+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2017-12-15 15:48 [Emacs-diffs] scratch/widen-less a4ba846: Replace prog-widen with consolidating widen calls 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
     [not found] <20171129233237.27462.23351@vcs0.savannah.gnu.org>
     [not found] ` <20171129233238.504B5204F1@vcs0.savannah.gnu.org>
2017-11-30  1:53   ` 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 23:09           ` 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
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
2017-12-03 23:53                             ` 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
2017-12-03 21:52                                   ` Stefan Monnier
2017-12-04  0:03                                     ` Dmitry Gutov
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

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