[XeTeX] bug in polyglossia/sanskrit? (problem with diacritical marks)

[Zdenek Wagner]

Bonjour,

I have not tried myself, I do not have TL 2019 yet but I would suspect
it is a font related issue.  It might (or might not) be related to
these changes in svn:

------------------------------------------------------------------------
r3987 | Stevan_White | 2018-12-20 18:15:39 +0100 (Thu, 20 Dec 2018) | 2 lines
Changed paths:
   M /trunk/freefont/sfd/FreeSerif.sfd
   M /trunk/freefont/sfd/FreeSerifBold.sfd

Latin: some issues with stacked accents.

------------------------------------------------------------------------
r3988 | Stevan_White | 2018-12-23 14:00:48 +0100 (Sun, 23 Dec 2018) | 2 lines
Changed paths:
   M /trunk/freefont/sfd/FreeSans.sfd
   M /trunk/freefont/sfd/FreeSansBold.sfd
   M /trunk/freefont/sfd/FreeSansBoldOblique.sfd
   M /trunk/freefont/sfd/FreeSansOblique.sfd
   M /trunk/freefont/sfd/FreeSerif.sfd
   M /trunk/freefont/sfd/FreeSerifBold.sfd
   M /trunk/freefont/sfd/FreeSerifBoldItalic.sfd
   M /trunk/freefont/sfd/FreeSerifItalic.sfd

Latin, Greek: addition and adjustment of many positioning anchors.

Can you try with FreeSans which was not modified in r3987 or just
install an older revision of the freefont and be sure that you do not
have several instances in your computer?

Zdeněk Wagner
http://ttsm.icpf.cas.cz/team/wagner.shtml
http://icebearsoft.euweb.cz

po 13. 5. 2019 v 19:16 odesílatel François Patte
<francois.patte at mi.parisdescartes.fr> napsal:
>
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> Bonjour,
>
> I have just made a fresh install of texlive 2019 and encountered a
> problem with the diacritical marks of romanized sanskrit.
>
> See this mwe (compile it with and without \setdefaultlanguage{sanskrit}) :
>
> \documentclass[a4paper,twoside,11pt]{book}
> \usepackage{fontspec}
> \usepackage{polyglossia}
> \setdefaultlanguage{sanskrit}
> \setmainfont{FreeSerif}
>
> \begin{document}
>   ā ī ū ṛ ṝ ḷ ḹ ṭ ḍ ṅ ś ṣ ḥ
> \end{document}
>
> When you enable \setdefaultlanguage{sanskrit}, the diacritical marks
> are awfull: macrons are moved on the right, dots under move on the
> left, the dot on the "i" remains with the macron...
>
> This did not occur with my previous 2018 version of texlive.
>
> Thank you for attention.
>
> - --
> François Patte
> UFR de mathématiques et informatique
> Laboratoire CNRS MAP5, UMR 8145
> Université Paris Descartes
> 45, rue des Saints Pères
> F-75270 Paris Cedex 06
> Tél. +33 (0)6 7892 5822
> http://www.math-info.univ-paris5.fr/~patte
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