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Re: prettify-symbols-mode to handle "\alpha-\beta" ...
From: |
pietru |
Subject: |
Re: prettify-symbols-mode to handle "\alpha-\beta" ... |
Date: |
Sat, 6 Feb 2021 00:15:46 +0100 |
> Sent: Saturday, February 06, 2021 at 11:04 AM
> From: "Gregory Heytings" <gregory@heytings.org>
> To: pietru@caramail.com
> Cc: emacs-devel@gnu.org
> Subject: Re: prettify-symbols-mode to handle "\alpha-\beta" ...
>
>
> >>>> (defun texinfo-prettify-symbols-compose-p (start end _match)
> >>>> ;; We know the matches all start with a backslash and end with
> >>>> ;; a word-element.
> >>>> (not (or (memq (char-before start) '(?\\))
> >>>> (memq (char-syntax (or (char-after end) ?\s)) '(?w))
> >>>> (nth 8 (syntax-ppss)))))
> >>>> (add-hook 'texinfo-mode-hook
> >>>> (lambda ()
> >>>> (push '("\\alpha" . ?α) prettify-symbols-alist)
> >>>> (push '("\\beta" . ?β) prettify-symbols-alist)
> >>>> (setq prettify-symbols-compose-predicate
> >>>> 'texinfo-prettify-symbols-compose-p)
> >>>> (prettify-symbols-mode)))
> >>>
> >>> That is not completely correct because for "\alpha-\beta", only \beta
> >>> is prettified.
> >>
> >> No, \alpha-\beta is prettified correctly. Tested with Emacs 25, 26, 27
> >> and 28.
> >
> > Have tried it in a texinfo document using
> >
> > @tex
> > $\alpha -\beta \gamma \alpha - \beta \gamma \alpha, \alpha. \alpha-
> > \alpha() \alpha[]$
> > @end tex
> >
>
> This works correctly with vanilla Emacs, with the "defun" and "add-hook"
> above.
So I have to add the following defun in prog-mode.el?
(defun texinfo-prettify-symbols-compose-p (start end _match)
- Re: prettify-symbols-mode to handle "\alpha-\beta" ..., (continued)
- Re: prettify-symbols-mode to handle "\alpha-\beta" ..., pietru, 2021/02/05
- Re: prettify-symbols-mode to handle "\alpha-\beta" ..., Stefan Monnier, 2021/02/05
- Re: prettify-symbols-mode to handle "\alpha-\beta" ..., Christopher Dimech, 2021/02/05
- Re: prettify-symbols-mode to handle "\alpha-\beta" ..., Christopher Dimech, 2021/02/05
- Re: prettify-symbols-mode to handle "\alpha-\beta" ..., Stefan Monnier, 2021/02/05
- Re: prettify-symbols-mode to handle "\alpha-\beta" ..., Gregory Heytings, 2021/02/05
- Re: prettify-symbols-mode to handle "\alpha-\beta" ..., pietru, 2021/02/05
- Re: prettify-symbols-mode to handle "\alpha-\beta" ..., Gregory Heytings, 2021/02/05
- Re: prettify-symbols-mode to handle "\alpha-\beta" ..., pietru, 2021/02/05
- Re: prettify-symbols-mode to handle "\alpha-\beta" ..., Gregory Heytings, 2021/02/05
- Re: prettify-symbols-mode to handle "\alpha-\beta" ...,
pietru <=
- Re: prettify-symbols-mode to handle "\alpha-\beta" ..., Gregory Heytings, 2021/02/05
- Re: prettify-symbols-mode to handle "\alpha-\beta" ..., Christopher Dimech, 2021/02/05
- Re: prettify-symbols-mode to handle "\alpha-\beta" ..., pietru, 2021/02/05
- Re: prettify-symbols-mode to handle "\alpha-\beta" ..., pietru, 2021/02/05
- Re: prettify-symbols-mode to handle "\alpha-\beta" ..., Christopher Dimech, 2021/02/04
Re: prettify-symbols-mode to handle "\alpha-\beta" ..., Ihor Radchenko, 2021/02/03
Re: prettify-symbols-mode to handle "\alpha-\beta" ..., tomas, 2021/02/04