LaTeX forum ⇒ XeTeX ⇒ Polyglossia and toc

[vangelis]

Hello,

I've got a problem with the formatting of the table of contents, using xetex and the package polyglossia (language : french). I don' manage to get the number of parts before the title ...

Here is an ECM to understand this :

Code: [Select all] [Expand/Collapse] [Download] (untitled.tex) Open in Overleaf

\documentclass[a4paper,12pt]{book} 
\XeTeXinputencoding iso-8859-1
\usepackage{polyglossia}
\setmainlanguage{french}
\setotherlanguage{latin}
\setotherlanguage[variant=ancient]{greek}
 
\begin{document}
\tableofcontents
\part{Part title}
\chapter{Chapter title}
\section{section title}
\part{another part}
\end{document}

With this code here is the appearance of the toc :
Part title (without number ...)
1 chapter title
1.1. Section

...


And I would like this formatting :
I. Title
1 Chapter title
1.1 Section title ...

What should I do to have the "I" enabled in the toc ? Can somebody help me ?
Thanks.

[vangelis]

The problem is solved with the following code in the preamble :

Code: [Select all] [Expand/Collapse] [Download] (untitled.tex) Open in Overleaf

\makeatletter
% avoid the redefinition of `\thepart`
\patchcmd{\captionsfrench}{\def\thepart{}}{}{}{}
% patch \@part not to print the part number
\patchcmd{\@part}{\nobreakspace\thepart}{}{}{}
\makeatother

[localghost]

Just for information to other users for awareness of possibly already existing solutions. The question has also been posted to {TeX} SX. Please read what our administrator thinks about that.

A crossposting is always contra-productive. But there is nothing really against it as long as it is mentioned. This means that a direct link has to be added. So other users who want to help are preserved from double efforts and waste of time.

Such kind of x-posting without notification represents a direct violation of our rules and has to be prevented absolutely in future questions.

It is suggestive to contact the package maintainer because with babel this behaviour does not occur.