fix(typst-book): localize orange-book running header when lang is set

news/changelog-1.10.md

@@ -23,6 +23,7 @@ All changes included in 1.10:
 - ([#14261](https://github.com/quarto-dev/quarto-cli/issues/14261)): Fix theorem/example block titles containing inline code producing invalid Typst markup when syntax highlighting is applied.
 - ([#14460](https://github.com/quarto-dev/quarto-cli/issues/14460)): Fix CSS `border` and `border-color` declarations losing tokens that precede an `rgb()`/`rgba()` color (e.g. `border: 0px solid rgb(255, 0, 0)` rendering as a 2.25pt border instead of being suppressed). Also fixes: `var(--brand-NAME)` references crashing the Typst CSS translator when `NAME` contained digits (e.g. `--brand-red-50`); a crash when an `rgba()` alpha is unparseable; the `dvmin` length unit being silently rejected (a stray space in the unit table); CSS keywords like `BOLD` not matching as `bold` (CSS keywords are case-insensitive); invalid hex colors like `#fffff` being silently accepted as 2-component colors.
 - ([#14511](https://github.com/quarto-dev/quarto-cli/issues/14511)): Fix brand fonts downloaded for a Typst book project not being passed to `typst compile`, causing `unknown font family` warnings and fallback to Libertinus Serif.
+- ([#14524](https://github.com/quarto-dev/quarto-cli/issues/14524)): Fix orange-book Typst book running header not honoring `lang:` — chapter heading band stayed `Chapter N.` instead of the locale's word (e.g. `Chapitre N.` for `lang: fr`). Also fixes the orange-book `list-of-figure-title` / `list-of-table-title` template pipes which were silently rendering as empty strings.
 
 ### `revealjs`
 

src/resources/extension-subtrees/orange-book/_extensions/orange-book/typst-show.typ

@@ -30,6 +30,7 @@ $endif$
 $if(lot)$
   list-of-table-title: "$if(crossref.lot-title)$$crossref.lot-title$$else$$crossref-lot-title$$endif$",
 $endif$
+  supplement-chapter: "$crossref-ch-prefix$",
 $if(margin-geometry)$
   padded-heading-number: false,
 $endif$

src/resources/filters/common/meta.lua

@@ -87,7 +87,20 @@ function metaInjectHtml(meta, func)
 end
 
 
-function readMetaOptions(meta) 
+-- Copy a filter param into Pandoc metadata so it resolves as a $key$
+-- variable in Pandoc templates. Skips when the user already set the key
+-- (explicit metadata wins). See llm-docs/localization-architecture.md for
+-- the broader pattern.
+function surfaceParamToMeta(meta, key)
+  if meta[key] == nil then
+    local value = param(key, nil)
+    if value ~= nil then
+      meta[key] = value
+    end
+  end
+end
+
+function readMetaOptions(meta)
   local options = {}
   for key,value in pairs(meta) do
     if type(value) == "table" and value.clone ~= nil then

src/resources/filters/crossref/meta.lua

@@ -5,6 +5,18 @@
 function crossrefMetaInject()
   return {
     Meta = function(meta)
+      -- surface localized crossref strings as Pandoc template variables
+      -- (consumed by Pandoc templates like orange-book typst-show.typ via
+      -- $crossref-ch-prefix$, $crossref-lof-title$, $crossref-lot-title$).
+      -- Filter params are Lua-only; templates need values in meta.
+      for _, key in ipairs({
+        "crossref-ch-prefix",
+        "crossref-lof-title",
+        "crossref-lot-title",
+      }) do
+        surfaceParamToMeta(meta, key)
+      end
+
       local function as_latex(inlines)
         return trim(pandoc.write(pandoc.Pandoc(quarto.utils.as_blocks(inlines)), "latex"))
       end

tests/docs/smoke-all/typst/orange-book-lang/.gitignore

@@ -0,0 +1,5 @@
+/.quarto/
+/_book/
+/index.typ
+**/*.quarto_ipynb
+*_files/

tests/docs/smoke-all/typst/orange-book-lang/_quarto.yml

@@ -0,0 +1,17 @@
+project:
+  type: book
+
+book:
+  title: "Livre Test"
+  author: "Auteur Test"
+  chapters:
+    - index.qmd
+    - chapter1.qmd
+
+lang: fr
+
+format:
+  typst:
+    keep-typ: true
+    lof: true
+    lot: true

tests/docs/smoke-all/typst/orange-book-lang/chapter1.qmd

@@ -0,0 +1,3 @@
+# Premier chapitre
+
+Voici le premier chapitre de ce livre de test.

tests/docs/smoke-all/typst/orange-book-lang/index.qmd

@@ -0,0 +1,16 @@
+---
+keep-typ: true
+_quarto:
+  render-project: true
+  tests:
+    typst:
+      ensureTypstFileRegexMatches:
+        -
+          - 'supplement-chapter: "Chapitre"'
+          - 'list-of-figure-title: "Liste des Figures"'
+          - 'list-of-table-title: "Liste des Tables"'
+---
+
+# Préface {.unnumbered}
+
+Préface du livre de test.