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Website category with a short backtick run before a longer one renders as broken code

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Valutazione

Difficoltà
2/5
Tempo stimato
1-3 ore
Idoneità per principianti
83/100
Tipo di issue
Bug
Chiarezza
Specificata chiaramente
Stato di attività
Attiva
Stack tecnologico
typescript, yaml
Ambito
backend

Direzione di ricerca

Inizia in src/core/pandoc/codegen.ts e leggi pandocNativeStr, che, secondo quanto indicato nell’issue, sceglie un wrapper in base alla prima sequenza di backtick. Usa la riproduzione con _quarto.yml e index.qmd per confermare la categoria difettosa, quindi esegui di nuovo il rendering per verificare che entrambe le categorie mostrino il testo così come è stato scritto. L’issue menziona anche percorsi e URL di Reveal.js che usano questa funzione; il loro comportamento non è stato testato.

Scritto dal modello di indicizzazione a partire dal testo della issue.

Descrizione

bug
I have
  • searched the issue tracker for similar issues
  • installed the latest version of Quarto CLI
  • formatted my issue following the Bug Reports guide
Bug description

A website category that holds a backtick run followed later by a longer run renders as a broken code span, with Quarto's internal markup showing on the page.
A category whose longest run comes first renders fine.

Quarto passes each category to Pandoc as inline code with the {=pandoc-native} raw attribute, so that Markdown does not touch it.
pandocNativeStr in src/core/pandoc/codegen.ts makes that wrapper one backtick longer than the first run in the text, not the longest.
A later, longer run then closes the inline code early.

The Reveal.js script paths and the Reveal.js URL go through the same function, but I have not tried those.

A roborev code review flagged this while I was working on something else, and I confirmed it with the smaller example below. (A bit of an edge case)

Steps to reproduce

_quarto.yml:

project:
  type: website

index.qmd:

---
title: "Categories with backticks"
categories:
  - "a`b``c"
  - "x``y`z"
---

Text.

Then run quarto render.

Actual behavior

The first category is broken, and the second one is correct:

<div class="quarto-category"><code>Str "a`b</code>c”``{=pandoc-native}</div>
<div class="quarto-category">x``y`z</div>
Expected behavior

Both categories show their text as written:

<div class="quarto-category">a`b``c</div>
<div class="quarto-category">x``y`z</div>
Your environment
  • IDE: none, command line.
  • OS: macOS 27.0.
Quarto check output

Reproduced with a development build of main at b9df97903.

Quarto 99.9.9

[✓] Checking environment information...
      Quarto cache location: /Users/mcanouil/Library/Caches/quarto
      Project: none found (single-file mode)

[✓] Checking versions of quarto binary dependencies...
      Pandoc version 3.10.0: OK
      Dart Sass version 1.101.0: OK
      Deno version 2.7.14: OK
      Typst version 0.15.1: OK

[✓] Checking versions of quarto dependencies......OK

[✓] Checking Quarto installation......OK
      Version: 99.9.9
      commit: b9df97903771dcd2135117da49a055122686156d
      Path: /Users/mcanouil/Projects/quarto-dev/quarto-cli/package/dist/bin

[✓] Checking tools....................OK
      TinyTeX: v2026.07
      Chrome Headless Shell: (not installed)
      VeraPDF: (not installed)

[✓] Checking LaTeX....................OK
      Using: TinyTex
      Path: /Users/mcanouil/Library/TinyTeX/bin/universal-darwin
      Version: 2026

[✓] Checking Chrome Headless....................OK
      Using: Chrome from QUARTO_CHROMIUM
      Path: /Applications/Brave Browser.app/Contents/MacOS/Brave Browser

[✓] Checking basic markdown render....OK

ℹ R version 4.6.1 (2026-06-24)
! Config '~/.Rprofile' was loaded!

[✓] Checking R installation...........OK
      Version: 4.6.1
      Path: /Library/Frameworks/R.framework/Versions/4.6/Resources
      LibPaths:
        - /Users/mcanouil/Library/R/arm64/4.6/library
        - /Library/Frameworks/R.framework/Versions/4.6/Resources/library
      knitr: 1.51
      rmarkdown: 2.31

[✓] Checking Knitr engine render......OK

[✓] Checking Python 3 installation....OK
      Version: 3.14.7
      Path: /Users/mcanouil/Projects/quarto-dev/quarto-cli/tests/.venv/bin/python3
      Jupyter: 5.9.1
      Kernels: julia-1.12, python3

[IPKernelApp] WARNING | Kernel is running over TCP without encryption. All communication (including code and outputs) is sent in plain text and is susceptible to eavesdropping. Use IPC transport or launch with kernel manager-provisioned CurveZMQ keys to enable transport encryption.

[✓] Checking Jupyter engine render....OK

[✓] Checking Julia installation...
Lingua principale
JavaScript
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