bug#58282: Distinguishing glasses-mode display

[uzibalqa via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>]

------- Original Message -------
On Tuesday, October 4th, 2022 at 2:52 PM, Christopher Dimech <dimech@gmx.com> wrote:

> 
> 
> > Sent: Wednesday, October 05, 2022 at 2:46 AM
> > From: "uzibalqa" uzibalqa@proton.me
> > To: "Eli Zaretskii" eliz@gnu.org
> > Cc: "Christopher Dimech" dimech@gmx.com, 58282@debbugs.gnu.org
> > Subject: Re: bug#58282: Distinguishing glasses-mode display
> > 
> > ------- Original Message -------
> > On Tuesday, October 4th, 2022 at 12:43 PM, Eli Zaretskii eliz@gnu.org wrote:
> > 
> > > > From: Christopher Dimech dimech@gmx.com
> > > > Cc: uzibalqa uzibalqa@proton.me, 58282@debbugs.gnu.org
> > > > Date: Tue, 4 Oct 2022 13:47:33 +0200
> > > > 
> > > > > I think we have this already: customize glasses-face to some distinct
> > > > > face, like 'bold'. Then the capital letters of identifiers where
> > > > > glasses.el inserted underscores will be shown in bold, and you can
> > > > > visually distinguish them from the original underscores.
> > > > 
> > > > Because I use bold font the default does not work for me.
> > > 
> > > ??? What default? The default is that glasses-face is just nil, so no
> > > special face is put on any parts of the identifiers. 'bold' was just
> > > an example of a non-default face; you can use any face there.
> > > 
> > > > I want to make the changes in my init file. How can I change the
> > > > foreground and background colour of the glasses matches?
> > > 
> > > You can't. This face is not about changing the matches, it is about
> > > changing the appearance of the capital letters in identifiers where
> > > glasses-mode adds the separator (which is underscore _ by default)
> > > 
> > > > Is it possible for users to use a UTF8 Code as separator, and if so,
> > > > how can this be done?
> > > 
> > > Customize the variable glasses-separator. (This has nothing to do
> > > with the original bug report, though.)
> > 
> > How can I change the colour of the capital letters or use utf8 using
> > elisp commands?
> 
> 
> You could just do
> 
> (setq glasses-separator "➾")
> 
> with the character being a utf8 symbol.
 
I would prefer using utf symbols than changing colours.

I am using the following function using hex code for Black Rightwards Arrowhead

(defun typex-camelsens ()

  "Splits CamelCase phrases using separator."

  (interactive)

  (setq glasses-separator "\u27A4")

  (glasses-mode))

How can I pass an arbitrary hex code interactively, besides using a default?