How to change 'solution' title and prefix?

[jandermoreira]

Description

I want to use #exr-... divs to present problems to students, as well as #sol-... to provide answers.

The text is in Portuguese and here is a MWE:

---
title: Exemplo
author: Jander
lang: pt-BR

crossref:
    exr-title: "Problema"
    exr-prefix: "Problema"
    # sol-title: "Resposta"
    # sol-prefix: "Resposta"
---

# Problemas

::: {#exr-1}
Um problema qualquer.

Veja @sol-1.
:::

# Respostas

::: {#sol-1}
Uma resposta.

Veja @exr-1.
:::

A first issue is that #sol-... labels create "Solução 1", but @sol-... remains "Solution" (in English).

I actually want to change both title and prefix for solutions to "Resposta" (a better word in Portuguese for my case).

I can use exr-title and exr-prefix to change exercices to problems (problemas), but there's no sol-title nor sol-prefix to adjust solutions.

ERROR: Validation of YAML front matter failed.
ERROR: In file exemplo.qmd
(line 9, columns 5--14) property name sol-title is invalid
 8:     exr-prefix: "Problema"
 9:     sol-title: "Resposta"
       ~~~~~~~~~~
10:     sol-prefix: "Resposta"
ℹ The error happened in location crossref:sol-title.
ℹ Did you mean lol-title?

ERROR: In file exemplo.qmd
(line 10, columns 5--15) property name sol-prefix is invalid
 9:     sol-title: "Resposta"
10:     sol-prefix: "Resposta"
       ~~~~~~~~~~~
11: ---
ℹ The error happened in location crossref:sol-prefix.
ℹ Did you mean tbl-prefix, sec-prefix, or cor-prefix?

Quarto's crossref options page shows the available translation options, but solutions aren't there. (Curiously, proof is not there either...)

Is there a way to correct this or should I consider writing a filter?

Quarto

$ quarto --version
1.4.542

[mcanouil]

Indeed, there's no equivalent and not only for "solution".
The pattern is not the same for "solution" (and "remark"), see https://quarto.org/docs/authoring/language.html#custom-translations and https://github.com/quarto-dev/quarto-cli/blob/main/src/resources/language/_language.yml#L104-L106.

---
title: Exemplo
author: Jander
lang: pt-BR
language:
  crossref-exr-title: "Problemaaaa"
  environment-solution-title: "Resposta"
---

# Problemas

::: {#exr-1}
Um problema qualquer.

Veja @sol-1.
:::

# Respostas

::: {#sol-1}
Uma resposta.

Veja @exr-1.
:::

cc @cscheid From what I've seen, solution/remark (and proof) were special environments, but the documentation currently implies that they are of the same kind as the others: https://quarto.org/docs/authoring/cross-references.html#theorems-and-proofs
proof is still different. But not "solution" and "remark".
Should "solution" and "remark" work as "exercise", "theorem", etc. or should they be more explicitly separated from the others in the documentation (https://quarto.org/docs/authoring/cross-references.html#theorems-and-proofs and https://quarto.org/docs/reference/metadata/crossref.html).

[cscheid]

This is something we need to fix. I'm going to tag #4944 here so that we can track.

[jandermoreira]

For now, my workaround is a filter for Cite (not fully tested):

local function starts_with(text, subtext)
    return string.sub(text, 1, #subtext) == subtext
end

function Cite(cite)
    if starts_with(cite.citations[1].id, "rem") then
        cite.citations[1].prefix = pandoc.Str("Comentário")  -- remark
    elseif starts_with(cite.citations[1].id, "sol") then
        cite.citations[1].prefix = pandoc.Str("Resposta")  -- solution
    end

    return cite
end