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Re: Syntax classes of text in href

From: Arash Esbati
Subject: Re: Syntax classes of text in href
Date: Wed, 11 Jan 2023 14:53:29 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/30.0.50

Al Haji-Ali <> writes:

> On 11/01/2023, Arash Esbati wrote:
>> We can teach the code to accept one level of braces, but is there a real
>> use-case for it?
> Why only one level? Doesn't AUCTeX have code to balance braces somewhere?

This is all regexp-based, so brace balancing is not the way you would
expect it.  Or am I missing your point?  This is currently what
`font-latex-set-syntactic-keywords' does:

(let ((...)
       (and (fboundp 'LaTeX-verbatim-macros-with-braces)
  (unless (= (length verb-macros-with-braces) 0)
     `(,(concat "\\\\\\(?:" verb-macros-with-braces "\\)"
                ;; Some macros take an optional argument.  This is
                ;; the same line as above for environments.
       (1 "|") (2 "|"))))

> I noticed the issue when defining links for my biblio like this
> \newbibmacro{string+doi}[1]{%
>     \iffieldundef{doi}{#1}{\href{\thefield{doi}}{#1}}}

Ok, this is indeed a valid use-case.

> Using `rainbow-delimiters-mode` meant that all subsequent braces are
> marked as mismatched. This is really a bigger issue with that package,
> but nonetheless it is caused by AUCTeX.
> I also use show-paren-mode to visually (and through a key binding) to
> jump between the closing/end braces, which doesn't work for href (even
> without nested braces).

True, AUCTeX breaks with your code.

Best, Arash

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