Re: [External] : Re: Regexp for matching control character, say, FORM FEED. (Was: Re: The `^L' appeared in built-in help.)

[Hongyi Zhao <hongyi.zhao@gmail.com>]

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On Thu, Jul 22, 2021 at 6:06 PM <tomas@tuxteam.de> wrote:
>
> On Thu, Jul 22, 2021 at 05:45:36PM +0800, Hongyi Zhao wrote:
> > On Thu, Jul 22, 2021 at 4:06 PM <tomas@tuxteam.de> wrote:
> > >
> > > On Thu, Jul 22, 2021 at 09:13:31AM +0800, Hongyi Zhao wrote:
>
> [...]
>
> > If so, the RS should be represented by ^^ in a self-consistent way :-)
>
> It is, indeed.
>
> I can't enter it here interactively with the "C-q" trick, because my
> keyboard setup maps it to a dead key (useful for entering accents),
> but doing (insert "\^^") in an Emacs buffer and querying the result
> with "describe character confirms that.
>
> Note the fancy Unicode name "INFORMATION SEPARATOR TWO". For whatever
> reason they chose that one alternative [1]. Perhaps because it sounds
> more bureaucratic ;-)
>
> Cheers
>
> [1] https://en.wikipedia.org/wiki/C0_and_C1_control_codes#Category-Number_names

Also see my screenshot shown by counsel-unicode-char command [1].

[1] https://github.com/abo-abo/swiper/blob/56139df678d9886d0612c0a192cce2cf6f156628/counsel.el#L5373

Best,
HY

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