Re: tex-mode prettify-symbols-alist for ("\\cos" . ?cos)

[pietru]

For delimeters do I need to escape using "\"

("\\lbrace" . ?\{) ("\\rbrace" . ?\}) ("\\lbrack" . ?\[)
("\\rbrack" . ?\]) ("\\langle" . ?\⟨) ("\\rangle" . ?\⟩)
("\\lceil" . ?⌈) ("\\rceil" . ?⌉) ("\\lfloor" . ?⌊)
("\\rfloor" . ?⌋)


> Sent: Sunday, February 14, 2021 at 11:38 AM
> From: "Tassilo Horn" <tsdh@gnu.org>
> To: help-gnu-emacs@gnu.org
> Subject: Re: tex-mode prettify-symbols-alist  for ("\\cos" . ?cos)
>
> pietru@caramail.com writes:
> 
> > I want to prettify "\cos" to be "cos".  Have used ("\\cos" . ?cos)
> > but this gives
> >
> > Invalid read syntax: ?
> 
> That's because ?cos is no character.  ?c would be.  The replacements of
> `prettify-symbols-alist' must be characters (or something being valid
> input for `compose-region's 3rd parameter).
> 
> Bye,
> Tassilo
> 
>