glossaries \leftmark and \rightmark not translated

Question

I was trying to make an article in french with a glossary (glossaire in our weird tongue), and I noticed that, even if I did manage to set the translation right for the body, the \leftmark (or \rightmark) used by fancyhdr is still in english.

Here's my code:

\documentclass{article}

\usepackage{fontspec}
\usepackage[francais]{babel}

\usepackage{fancyhdr}

\usepackage[acronym,xindy,toc]{glossaries}
\makeglossaries
    \addto{\captionsfrancais}{
      \renewcommand{\glossaryname}{Glossaire}
    }

\newglossaryentry{thingy}
{
  name=thingy,
  description={something}
}

\pagestyle{fancy}
\fancyhf{}
\fancyhead[RE]{\small\sc\nouppercase{\leftmark}}
\fancyhead[LO]{\small\sc\nouppercase{\rightmark}}
\fancyhead[LE,RO]{\thepage}

\begin{document}

\gls{thingy}

\newpage

\printglossaries

\end{document}

Any idea how to get the correct translation in the header too?

Edit: and if I want a different translation altogether ("termes techniques", for example)?

Thanks!

Answer 1

The glossaries package uses translator, but this package seems not to be aware of the current language and the language to be used must be passed to it.

So you need either to set the language option in \documentclass or load the translator package with the correct option.

In the two codes below I mention only the relevant packages.

Choice 1

\documentclass[francais]{article}

\usepackage{babel}

\usepackage[acronym,xindy,toc]{glossaries}
\makeglossaries

Choice 2

\documentclass{article}

\usepackage[francais]{babel}

\usepackage{fancyhdr}
\usepackage[francais]{translator}
\usepackage[acronym,xindy,toc]{glossaries}
\makeglossaries

---

Note: the fixed words for French (at least those that are not managed by translator in this case) should be modified with

\addto\captionsfrench

and not with \addto\captionsfrancais.

---

If you want to change the generic title for glossaries, say for using Termes instead of Glossaire, the translator facility is needed:

\AtBeginDocument{%
  \renewtranslation[to=French]{Glossary}{Termes}%
}

(sorry for the clumsiness of this approach, but it's not my fault).

Alternatively, if you have a single glossary, use the title option and type

\printglossary[title=Termes]

instead of \printglossaries.