Dear Koen,
2017-11-22 17:55 GMT+01:00 Koen van Greevenbroek
<koenvangreevenbr...@gmail.com>:
> Hi!
>
> Some valid LaTeX is parsed incorrectly by AUCTeX folding functions
> (i.e. 'TeX-fold-region'), and an annoying error is displayed. Here is
> an
> example:
>
> ===========================
> \documentclass{beamer}
> \begin{document}
> \begin{frame}
> \begin{itemize}
> \item \textbf<1>{One}
> \item \textbf<1>{Two}
> \end{itemize}
> \end{frame}
> \end{document}
> ===========================
>
> When folded, this code is displayed as follows:
>
> ===========================
> \documentclass{beamer}
> \begin{document}
> \begin{frame}
> \begin{itemize}
> * [Error: No content found]<1>{One}
> * [Error: No content found]<2>{Two}
> \end{itemize}
> \end{frame}
> \end{document}
> ===========================
>
> Another example, which doesn't involve beamer, is the following code:
>
> ===========================
> \usepackage{titlesec}
> \titleformat{\section}{\bfseries}{\thesection}{10pt}{}[\normalfont]
> ===========================
>
> which displays as:
>
> ===========================
> \usepackage{titlesec}
> \titleformat{[Error: No content
> found]}{\bfseries}{\thesection}{10pt}{}[\normalfont]
> ===========================
>
> Maybe it would be an idea to just not fold things like this where no
> content it found, instead of displaying an error?
Thanks for the detailed report. I tried at least to track down the
culprit for the beamer case, I think a general solution would be to
teach `TeX-find-macro-boundaries' and related functions about <...>
specifications. Unfortunately, I don't have right now the time to fix
it, but this should be a starting point for anyone willing to tackle
this issue. Regarding the second case, I don't think there is an easy
fix for it.
Bye,
Mosè
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