electric-layout-local-mode does not work in c-mode and java-mode

electric-layout-local-mode does not work in c-mode and java-mode

[stardiviner]

I have following configurations:

#+begin_src emacs-lisp
(defun c-mode-electric-layout-setting ()
  "auto insert newline after specific characters."
  (setq-local electric-layout-rules '((?\; . after)))
  (add-to-list 'electric-layout-rules '( ?\{ .  after))
  (add-to-list 'electric-layout-rules '( ?\} .  before)))
(add-hook 'c-mode-hook #'electric-layout-local-mode)
(add-hook 'c-mode-hook #'c-mode-electric-layout-setting)

(defun java-mode-electric-layout-setting ()
  "auto insert newline after specific characters."
  (setq-local electric-layout-rules '((?\; . after)))
  (add-to-list 'electric-layout-rules '( ?\{ .  after))
  (add-to-list 'electric-layout-rules '( ?\} .  before)))
(add-hook 'java-mode-hook #'electric-layout-local-mode)
(add-hook 'java-mode-hook #'java-mode-electric-layout-setting)
#+end_src

Here is language code demo:

#+begin_src java
public class Hello {
    public static void main(String[] args) {
        System.log.output("hello");
    }
}
#+end_src

#+begin_src C
#include <stdio.h>

int main(int argc, char *argv[]) {
  printf("hello");
}
#+end_src

When I press ";", electric-layout-local-mode does not auto insert newline and jump to newline.

I use similar configuration works fine on js-mode and web-mode.

I also tested with minimal emacs configuration. Still does not work.

Does anyone knows what's wrong and how to fix it?

-- 
[ stardiviner ]
       I try to make every word tell the meaning what I want to express.

       Blog: https://stardiviner.github.io/
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       GPG: F09F650D7D674819892591401B5DF1C95AE89AC3
      

Re: electric-layout-local-mode does not work in c-mode and java-mode

[Robert Pluim]

>>>>> On Tue, 04 Feb 2020 09:39:01 +0800, stardiviner <numbchild@gmail.com> said:
    stardiviner> When I press ";", electric-layout-local-mode does not auto insert newline and jump to newline.

    stardiviner> I use similar configuration works fine on js-mode and web-mode.

    stardiviner> I also tested with minimal emacs configuration. Still does not work.

    stardiviner> Does anyone knows what's wrong and how to fix it?

I donʼt use electric-layout-local-mode, I use this instead:

    c-toggle-auto-newline is an interactive compiled Lisp function in
    `cc-cmds.el'.

    (c-toggle-auto-newline &optional ARG)

      Probably introduced at or before Emacs version 22.1.

    Toggle auto-newline feature.
    Optional numeric ARG, if supplied, turns on auto-newline when
    positive, turns it off when negative, and just toggles it when zero or
    left out.

    Turning on auto-newline automatically enables electric indentation.

    When the auto-newline feature is enabled (indicated by "/la" on the
    mode line after the mode name) newlines are automatically inserted
    after special characters such as brace, comma, semi-colon, and colon.

Robert

Re: electric-layout-local-mode does not work in c-mode and java-mode

[Stefan Monnier]

> When I press ";", electric-layout-local-mode does not auto insert newline and jump to newline.

CC-mode does things in its own way.  You should be able to get it to
work by disabling CC-mode's ad-hoc solution:

    (define-key c-mode-base-map ";" nil)


-- Stefan

Re: electric-layout-local-mode does not work in c-mode and java-mode

[stardiviner]

This is interesting, thanks, Robert. I will try it. :)

Robert Pluim <rpluim@gmail.com> writes:

>>>>>> On Tue, 04 Feb 2020 09:39:01 +0800, stardiviner <numbchild@gmail.com> said:
>     stardiviner> When I press ";", electric-layout-local-mode does not auto insert newline and jump to newline.
>
>     stardiviner> I use similar configuration works fine on js-mode and web-mode.
>
>     stardiviner> I also tested with minimal emacs configuration. Still does not work.
>
>     stardiviner> Does anyone knows what's wrong and how to fix it?
>
> I donʼt use electric-layout-local-mode, I use this instead:
>
>     c-toggle-auto-newline is an interactive compiled Lisp function in
>     `cc-cmds.el'.
>
>     (c-toggle-auto-newline &optional ARG)
>
>       Probably introduced at or before Emacs version 22.1.
>
>     Toggle auto-newline feature.
>     Optional numeric ARG, if supplied, turns on auto-newline when
>     positive, turns it off when negative, and just toggles it when zero or
>     left out.
>
>     Turning on auto-newline automatically enables electric indentation.
>
>     When the auto-newline feature is enabled (indicated by "/la" on the
>     mode line after the mode name) newlines are automatically inserted
>     after special characters such as brace, comma, semi-colon, and colon.
>
> Robert


-- 
[ stardiviner ]
       I try to make every word tell the meaning what I want to express.

       Blog: https://stardiviner.github.io/
       IRC(freenode): stardiviner, Matrix: stardiviner
       GPG: F09F650D7D674819892591401B5DF1C95AE89AC3
      

[SOLVED] Re: electric-layout-local-mode does not work in c-mode and java-mode

[stardiviner]

Stefan Monnier <monnier@iro.umontreal.ca> writes:

>> When I press ";", electric-layout-local-mode does not auto insert newline and jump to newline.
>
> CC-mode does things in its own way.  You should be able to get it to
> work by disabling CC-mode's ad-hoc solution:
>
>     (define-key c-mode-base-map ";" nil)
>
>
> -- Stefan

You're right, thanks Stefan. :)

-- 
[ stardiviner ]
       I try to make every word tell the meaning what I want to express.

       Blog: https://stardiviner.github.io/
       IRC(freenode): stardiviner, Matrix: stardiviner
       GPG: F09F650D7D674819892591401B5DF1C95AE89AC3