Re: The `^L' appeared in built-in help.

[Hongyi Zhao]

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.

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