In revealjs: true, code-line-numbers: "1" doesn't work #13316
Description
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
code-line-numbers: "1" doesn't work in format: revealjs.
Steps to reproduce
---
format: revealjs
execute:
echo: true
---
- Doesn't highlight line 1 -- doesn't work:
```{r}
#| code-line-numbers: "1"
mean(
c(1,2,3,4,5)
)
```
- Highlights line 2 -- works:
```{r}
#| code-line-numbers: "2"
mean(
c(1,2,3,4,5)
)
```
- Highlights line 1 on next fragment -- works:
```{r}
#| code-line-numbers: "|1"
mean(
c(1,2,3,4,5)
)
```Actual behavior
No response
Expected behavior
No response
Your environment
- IDE: Positron Version: 2025.08.0 build 130
- OS: 15.6.1 (24G90)
Quarto check output
Quarto 1.8.21
[✓] Checking environment information...
Quarto cache location: /Users/mine/Library/Caches/quarto
[✓] Checking versions of quarto binary dependencies...
Pandoc version 3.6.3: OK
Dart Sass version 1.87.0: OK
Deno version 2.3.1: OK
Typst version 0.13.0: OK
[✓] Checking versions of quarto dependencies......OK
[✓] Checking Quarto installation......OK
Version: 1.8.21
Path: /Applications/quarto/bin
[✓] Checking tools....................OK
TinyTeX: (external install)
Chromium: (not installed)
[✓] Checking LaTeX....................OK
Using: TinyTex
Path: /Users/mine/Library/TinyTeX/bin/universal-darwin
Version: 2025
[✓] Checking Chrome Headless....................OK
Using: Chrome found on system
Path: /Applications/Google Chrome.app/Contents/MacOS/Google Chrome
Source: MacOS known location
[✓] Checking basic markdown render....OK
[✓] Checking Python 3 installation....OK
Version: 3.13.7
Path: /opt/homebrew/opt/[email protected]/bin/python3.13
Jupyter: (None)
Jupyter is not available in this Python installation.
Install with python3 -m pip install jupyter
[✓] Checking R installation...........OK
Version: 4.5.1
Path: /Library/Frameworks/R.framework/Resources
LibPaths:
- /Library/Frameworks/R.framework/Versions/4.5-arm64/Resources/library
knitr: 1.50
rmarkdown: 2.29
[✓] Checking Knitr engine render......OK