Distinguishing between "ed" and "eds" in citation

Question

I'm using biblatex-chicago, together with babel and csquotes, as I'm making a compilation with two different languages for the reference section.

It works fine with one exception: cbyeditor is not defined for spanish, for some reason. I can manually define it using

\NewBibliographyString{cbyeditor}
\DefineBibliographyStrings{spanish}{cbyeditor = {eds.,}}

But this way it won't distinguish between 1 editor (ed.) or 2 or more editors (eds.) How could I achieve this?

Answer 1

The following MWE shows an example use of cbyeditor. Note that cbyeditor will just come out as cbyeditor because biblatex-chicago does not have a Spanish localisation file (there is no cms-spanish.lbx).

\documentclass[spanish]{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{babel}
\usepackage{csquotes}

\usepackage[notes, backend=biber]{biblatex-chicago}

\addbibresource{biblatex-examples.bib}

\begin{document}
\cite{aristotle:anima}
\printbibliography
\end{document}

cbyeditor is biblatex-chicago's equivalent of byeditor for citations. It usually takes the short form of the string, so for Spanish you probably want

\NewBibliographyString{cbyeditor}
\DefineBibliographyStrings{spanish}{
  cbyeditor = {ed\adddotspace por},
}

to obtain

Aristotle, De Anima, ed. por Robert Drew Hicks (Cambridge: Cambridge University Press, 1907)

Note that since the string cleverly uses a passive construction ('editado por'/'edited by'/'herausgegeben von') it avoids the need for a different plural string (at least in all languages biblatex currently speaks).

If you really wanted 'ed.'/'eds.' here, you would have to rewrite the entire byeditor macro family to use the editor strings. I doubt that would be a pleasant experience.