bug#32345: 12.1.1; wrong preview position for four-byte utf-8 encoded character (xelatex)

[jfbu]

Le 02/08/2018 à 13:34, David Kastrup a écrit :
> jfbu <address@hidden> writes:
>
> > I obtain partial success with
> >
> > \documentclass{article}
> > \usepackage{unicode-math}
> > \begin{document}
> >
> > Test: $𝒞$
> >
> > \end{document}
>
> [...]
>
> > Further the log contains indication something went wrong indeed
> >
> > l.5 Test: $
> >             풞$
> > Preview: Tightpage -32891 -32891 32891 32891
> > ./testpreview.tex:5: Preview: Snippet 1 ended.(456786+9830x428605).
>
> Maybe you should bother to mention what you consider "indication
> something went wrong indeed".  preview-latex produces error messages on
> purpose.  That's the only way to get to the right column.
>
> The problem here is that the character in the error message appears to
> be a different character from what is in the source file, so
> preview-latex isn't able to correlate it with the source.

So you do understand what I meant then?

Have a nice summer

Jean-François