Use localized quotation marks, hyphenation and ponctuation in BibLaTeX using langid for entries title

Question

What I get:

A. Author, « Some article title ? ». Whatever Journal.

B. Buthor, « Un article ? ». Another Journal.

What I would like:

A. Author, “Some article title?”. Whatever Journal.

B. Buthor, « Un article ? ». Another Journal.

And hyphenation should be language-dependent of course. ;)

autolang=other is not an option as it would translate some other parts of the bibliography that I don’t want to be affected.

I’ve stumbled upon BibLaTeX langid with autolang=hyphen makes csquotes use localized quotation marks and the old behaviour is mostly what I want (with the minor point that I don’t know how it behaved w.r.t. punctuation like question marks above).

MNWE:

\documentclass{scrartcl}

\usepackage[british,french]{babel}
\usepackage[autostyle=true]{csquotes}
\usepackage[autolang=hyphen]{biblatex}
\usepackage{filecontents}

\begin{filecontents*}{\jobname.bib}
@article{eng,
  author = {Author, A.},
  title = {Some article title?},
  journal = {Whatever Journal},
  year = {2019},
  langid = {british},
}
@article{fra,
  author = {Buthor, B.},
  title = {Un article ?},
  journal = {Another Journal},
  year = {2019},
  langid = {french},
}
\end{filecontents*}
\addbibresource{\jobname.bib}

\begin{document}
\nocite{*}
\printbibliography
\end{document}

Answer 1

You can try the following.

A remark about the punctuation marks. There are two types in your example:

• Punctuation marks in fields, like e.g. the question mark in the title: {Some article title?},

• Punctuation marks created by macros from biblatex, e.g. the colon after the In:.

The first type is difficult to adapt to the language with pdflatex as the catcodes are already frozen. With lualatex it works.

\documentclass{scrartcl}
\usepackage{ifluatex}
\ifluatex\else
 \usepackage[T1]{fontenc} %with pdflatex
\fi

\usepackage[british,french]{babel}
\usepackage[autostyle=true]{csquotes}
\usepackage[autolang=hyphen]{biblatex}
\usepackage{filecontents}

\begin{filecontents*}{\jobname.bib}
@article{eng,
  author = {Author, A.},
  title = {Some article title?},
  journal = {Whatever Journal},
  year = {2019},
  langid = {british},
  editor={D. Editor}
}
@article{fra,
  author = {Buthor, B.},
  title = {Un article?},
  journal = {Another Journal},
  year = {2019},
  langid = {french},
  editor={D. Editor}
}

\end{filecontents*}
\addbibresource{\jobname.bib}

\makeatletter
\def\blx@hook@initlang{%
 \csq@reset=0 \csq@setstyle{\abx@field@langid}%
 %optional for the colon after "In":
 \ifdefstring{\abx@field@langid}{french}{}
  {\def\FDP@colonspace{}%
   \def\FDP@thinspace{}}%
 }
\makeatletter
\begin{document}

\nocite{*}
\printbibliography
\end{document}

Output with lualatex:

Output with pdflatex

Answer 2

Using autolang=other (and loading the T1 font encoding) does the job:

\documentclass{scrartcl}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}

\usepackage[british,french]{babel}
\usepackage[autostyle=true]{csquotes}
\usepackage[autolang=other]{biblatex}
\usepackage{filecontents}

\begin{filecontents*}{\jobname.bib}
@article{eng,
  author = {Author, A.},
  title = {Some article title?},
  journal = {Whatever Journal},
  year = {2019},
  langid = {british},
}
@article{fra,
  author = {Buthor, B.},
  title = {Un article ?},
  journal = {Another Journal},
  year = {2019},
  langid = {french},
}
\end{filecontents*}
\addbibresource{\jobname.bib}

\begin{document}

\nocite{*}
\printbibliography

\end{document}