From: pietru@caramail.com
To: Gregory Heytings <gregory@heytings.org>
Cc: emacs-devel@gnu.org
Subject: Re: prettify-symbols-mode to handle "\alpha-\beta" ...
Date: Fri, 5 Feb 2021 23:56:31 +0100 [thread overview]
Message-ID: <trinity-dcbbe1f9-57cf-4282-8233-c848de7903a8-1612565791424@3c-app-mailcom-bs10> (raw)
In-Reply-To: <5588fb25804d75ad55f8@heytings.org>
> Sent: Saturday, February 06, 2021 at 10:45 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" ...
>
>
> >>> Would allowing a regexp solve the expression \alpha-\beta,
> >>> \alpha+\beta, \alpha/\beta, so that \alpha and \beta are prettified
> >>> seperately?
> >>
> >> That's not necessary. Just follow Stefan's advice:
> >>
> >> (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)))
> >>
> >> This does what you want.
> >
> > 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
next prev parent reply other threads:[~2021-02-05 22:56 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-04 1:24 prettify-symbols-mode to handle "\alpha-\beta" pietru
2021-02-04 2:08 ` Óscar Fuentes
2021-02-04 3:03 ` pietru
2021-02-04 3:39 ` Óscar Fuentes
2021-02-04 3:46 ` Christopher Dimech
2021-02-04 3:51 ` pietru
2021-02-04 4:04 ` Stefan Monnier
2021-02-04 4:21 ` Christopher Dimech
2021-02-04 16:12 ` Stefan Monnier
2021-02-04 18:09 ` Christopher Dimech
2021-02-04 18:21 ` Stefan Monnier
2021-02-04 20:14 ` Christopher Dimech
2021-02-04 18:15 ` Christopher Dimech
2021-02-04 18:23 ` Stefan Monnier
2021-02-04 20:22 ` Christopher Dimech
2021-02-04 20:38 ` Stefan Monnier
2021-02-04 20:54 ` Christopher Dimech
2021-02-05 20:32 ` pietru
2021-02-05 21:01 ` Stefan Monnier
2021-02-05 21:05 ` Christopher Dimech
2021-02-05 21:54 ` Christopher Dimech
2021-02-05 21:57 ` Stefan Monnier
2021-02-05 22:09 ` Gregory Heytings
2021-02-05 22:22 ` pietru
2021-02-05 22:45 ` Gregory Heytings
2021-02-05 22:56 ` pietru [this message]
2021-02-05 23:04 ` Gregory Heytings
2021-02-05 23:15 ` pietru
2021-02-05 23:22 ` Gregory Heytings
2021-02-05 23:43 ` Christopher Dimech
2021-02-05 23:44 ` pietru
2021-02-06 0:05 ` pietru
2021-02-04 20:34 ` Christopher Dimech
2021-02-04 3:46 ` Ihor Radchenko
2021-02-04 3:59 ` Christopher Dimech
2021-02-04 8:44 ` tomas
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