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From: Hongyi Zhao <hongyi.zhao@gmail.com>
To: Emanuel Berg <moasenwood@zoho.eu>,
	help-gnu-emacs <help-gnu-emacs@gnu.org>
Subject: Re: The `^L' appeared in built-in help.
Date: Tue, 6 Jul 2021 20:09:42 +0800	[thread overview]
Message-ID: <CAGP6PO+O-njaCfoziccmr9Z+WR398pKZUXOGvNk38MH5znEr4A@mail.gmail.com> (raw)
In-Reply-To: <CAGP6POJpd3BPOF1MVhRcTsL-G3zNsFUsdr6_0gcT7RqQrkHe9A@mail.gmail.com>

On Tue, Jul 6, 2021 at 7:55 PM Hongyi Zhao <hongyi.zhao@gmail.com> wrote:
>
> On Tue, Jul 6, 2021 at 7:22 PM Hongyi Zhao <hongyi.zhao@gmail.com> wrote:
> >
> > On Tue, Jul 6, 2021 at 7:07 PM Hongyi Zhao <hongyi.zhao@gmail.com> wrote:
> > >
> > > On Tue, Jul 6, 2021 at 6:46 PM Emanuel Berg via Users list for the GNU
> > > Emacs text editor <help-gnu-emacs@gnu.org> wrote:
> > > >
> > > > Hongyi Zhao wrote:
> > > >
> > > > > The screenshot is generated by `C-x 8 RET c', but `M-x
> > > > > describe-char RET' for the result character says that it
> > > > > should be input by `C-x 8 RET 6', as you can see in the
> > > > > screenshot. So, I'm confused on this problem.
> > > >
> > > > Here are mine, C-x 8 RET 6 RET
> > > >
> > > >
> > > >
> > > > and C-x 8 RET c RET
> > > >
> > > >
> > > >
> > > > and M-x insert-char RET form feed (ff) RET
> > > >
> > > >
> > > >
> > > > The char that looks like ^F is:
> > > >
> > > >              position: 894 of 959 (93%), restriction: <544-960>, column: 0
> > > >             character: C-f (displayed as C-f) (codepoint 6, #o6, #x6)
> > > >               charset: ascii (ASCII (ISO646 IRV))
> > > > code point in charset: 0x06
> > > >                script: latin
> > > >                syntax: .        which means: punctuation
> > > >              to input: type "C-x 8 RET 6" or "C-x 8 RET ACKNOWLEDGE"
> > > >           buffer code: #x06
> > > >             file code: #x06 (encoded by coding system utf-8-emacs)
> > > >               display: terminal code #x06
> > > >        hardcoded face: escape-glyph
> > > >
> > > > Character code properties: customize what to show
> > > >   old-name: ACKNOWLEDGE
> > > >   general-category: Cc (Other, Control)
> > > >
> > > > There are text properties here:
> > > >   fontified            t
> > > >
> > > > and the char that looks like ^L is:
> > > >
> > > >              position: 950 of 1750 (54%), restriction: <544-1751>, column: 0
> > > >             character: C-l (displayed as C-l) (codepoint 12, #o14, #xc)
> > > >               charset: ascii (ASCII (ISO646 IRV))
> > > > code point in charset: 0x0C
> > > >                script: latin
> > > >                syntax:          which means: whitespace
> > > >              to input: type "C-x 8 RET c" or "C-x 8 RET FORM FEED (FF)"
> > > >           buffer code: #x0C
> > > >             file code: #x0C (encoded by coding system utf-8-emacs)
> > > >               display: terminal code #x0C
> > > >        hardcoded face: escape-glyph
> > > >
> > > > Character code properties: customize what to show
> > > >   old-name: FORM FEED (FF)
> > > >   general-category: Cc (Other, Control)
> > > >
> > > > There are text properties here:
> > > >   fontified            t
> > > >
> > >
> > > I find the clues: if I run `emacs -Q', the results will be the same as
> > > yours. If I run  `emacs', the problem reported here will happen. So
> > > the problem is triggered by some configurations in my
> > > `~/.emacs.d/init.el'. But I still can't find out the specific
> > > configuration which caused the problem.
> >
> > I found the reason: it is caused by the following configuration:
> >
> > ```
> > (straight-use-package
> >  `(swiper :type git :host github :repo "abo-abo/swiper"
> >     :pre-build (
> >                ;("bash" "-c" "cd ~/.emacs.d/straight/repos/swiper")
> >                ;https://github.com/abo-abo/swiper/issues/2886#issuecomment-860605327
> >                ("make" "deps")
> >                ("make" "compile")
> >                )))
> >
> > (require 'ivy)
> > (ivy-mode 1)
> > (setq ivy-use-virtual-buffers t)
> > (setq ivy-count-format "(%d/%d) ")
> > ```
> >
> > But I still can't figure out why this configuration will trigger the
> > above problem.
>
> I've filed a bug report on <https://github.com/abo-abo/swiper/issues/2888>.

I also tried with helm, <https://github.com/emacs-helm/helm>, and
found that it also has the same problem.

Regards
-- 
Assoc. Prof. Hongyi Zhao <hongyi.zhao@gmail.com>
Theory and Simulation of Materials
Hebei Vocational University of Technology and Engineering
NO. 552 North Gangtie Road, Xingtai, China



  reply	other threads:[~2021-07-06 12:09 UTC|newest]

Thread overview: 66+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-06  2:34 The `^L' appeared in built-in help Hongyi Zhao
2021-07-06  2:46 ` [External] : " Drew Adams
2021-07-06  2:53   ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-06 14:56     ` Drew Adams
2021-07-06 15:56       ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-06 17:04         ` Drew Adams
2021-07-06 17:12           ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-06  2:51 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-06  3:44   ` Hongyi Zhao
2021-07-06  4:06     ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-06  8:26       ` Hongyi Zhao
2021-07-06  8:31         ` Hongyi Zhao
2021-07-06  9:12           ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-06  9:40             ` Hongyi Zhao
2021-07-06 10:06               ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-06 11:07                 ` Hongyi Zhao
2021-07-06 11:22                   ` Hongyi Zhao
2021-07-06 11:55                     ` Hongyi Zhao
2021-07-06 12:09                       ` Hongyi Zhao [this message]
2021-07-06 16:13                       ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-06 16:12                     ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-07  3:03                       ` Hongyi Zhao
2021-07-13  3:06                         ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-06 16:12                   ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-07  1:40                     ` Hongyi Zhao
2021-07-13  3:07                       ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-18  6:34                         ` Hongyi Zhao
2021-07-19  0:27                           ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-20  1:27       ` Hongyi Zhao
2021-07-20  1:42         ` [External] : " Drew Adams
2021-07-20  2:02           ` Hongyi Zhao
2021-07-20  4:28             ` Drew Adams
2021-07-20  5:56               ` Hongyi Zhao
2021-07-20 10:29                 ` Hongyi Zhao
2021-07-20 14:48                   ` Drew Adams
2021-07-20 16:28                   ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-21  2:03                     ` Hongyi Zhao
2021-07-21  2:26                       ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-21  4:44                         ` Drew Adams
2021-07-21  7:15                           ` Regexp for matching control character, say, FORM FEED. (Was: Re: The `^L' appeared in built-in help.) Hongyi Zhao
2021-07-21 17:08                             ` [External] : " Drew Adams
2021-07-22  1:13                               ` Hongyi Zhao
2021-07-22  1:28                                 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-22  1:39                                   ` Drew Adams
2021-07-22  1:42                                     ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-22  3:52                                       ` Drew Adams
2021-07-22  4:14                                         ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-22  8:04                                           ` Hongyi Zhao
2021-07-22 13:56                                           ` Hongyi Zhao
2021-07-22 14:38                                             ` tomas
2021-07-22 14:53                                               ` Hongyi Zhao
2021-07-22 15:01                                                 ` tomas
2021-07-22 15:21                                                   ` Hongyi Zhao
2021-07-22 22:07                                                 ` [External] : Re: Regexp for matching control character, say, FORM FEED Michael Heerdegen
2021-07-23  1:09                                                   ` Hongyi Zhao
2021-07-22 17:07                                             ` [External] : Re: Regexp for matching control character, say, FORM FEED. (Was: Re: The `^L' appeared in built-in help.) Drew Adams
2021-07-22 17:11                                               ` tomas
2021-08-01  2:41                                                 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-22  8:06                                 ` tomas
2021-07-22  9:45                                   ` Hongyi Zhao
2021-07-22 10:06                                     ` tomas
2021-07-22 10:27                                       ` Hongyi Zhao
2021-07-22 12:14                                         ` tomas
2021-08-01  2:31                                   ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-06  4:19 ` The `^L' appeared in built-in help 2QdxY4RzWzUUiLuE
2021-07-06  4:29   ` Emanuel Berg via Users list for the GNU Emacs text editor

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