Customize prefix outputs of figure/theorem/... in HTML outputs

[AlbertLei]

When I use cross-ref like See @sec-gdp, the output is See Chapter 1.

But my ducoment is in French. I wish the output will be See Chapitre 1. A work-around is to use [Chapitre -@sec-gdp]. But I am wondering if there's a direct method?
Also, that work-around does not work if I want the output of my numbered theorem environment to be théorème 1.

I have checked the docs on crossref options. But the fig-title and fig-prefix options doesn't work for me. TBH, I do not really understand what the options do from the docs.

I am using quarto v1.1.251 on mac.

[AlbertLei]

More specifically, I was asking how to do "Internationalization" like bookdown

[AlbertLei]

Turns out the corssref options are exactly what I need.

I initially put the corssref options under book:, and it did not work. After moving them to the format:html: option, everything works.

[AlbertLei]

I am relatively new to quarto, but the documentation seems a little bit misleading for me.
The example implies that the crossref option is at the same level of title?

However, I find the following not working:

project:
  type: book

book:
  title: "Économie"
  crossref:
      fig-title: FIGURE # (default is "Figure")

format:
  html:
    theme: cosmo

And the following works:

project:
  type: book

book:
    title: "Économie"

format:
  html:
    theme: cosmo
    crossref:
      fig-title: FIGURE # (default is "Figure")

[dragonstyle]

The documentation is showing a single document that is setting cross reference options (and hence the title and other elements like crossref are in the root. In the case of a project, I would put them in the same place. We don't read them out of the book key since they aren't book specific options, but instead general Quarto configuration options.

project:
  type: book

book:
  title: "book"
  author: "Jane Doe"
  date: "10/11/2022"
  chapters:
    - index.qmd
    - intro.qmd
    - summary.qmd
    - references.qmd

bibliography: references.bib

format:
  html:
    theme: cosmo
  pdf:
    documentclass: scrreprt

crossref:
  fig-title: FIGURE # (default is "Figure")

[AlbertLei]

Thanks for your response!

Admittedly, the fact that we cannot put crossref option under book still seems not intuitive to me. As I am working on a book project, what's the difference between a "Quarto configuration option" and a "book option"?

For instance, concerning the example dragonstyle gave, my (wrong) intuition is to put both bibliography and crossref under book:, bc they should apply to both HTML and PDF (and other possible?) formats.

For format-specific option such as documentclass, it makes sense to put them under format:pdf: options

[AlbertLei]

Update: for my use case, it suffices to set lang: fr. It turns out that Quarto has great support for different languages.

[fredguth]

where is the lang: fr in the yml?

[AlbertLei]

I am using a book project, and lang: fr is a "Quarto configuration option" as in dragonstyle's example above.

The lang-option is documented here.