One of knitr's citations doesn't protect R from downcasing

[JenniferSLyon]

I was generating a pdf document using Rmarkdown and knitr. I cited knitr. I noticed in my bibliography that in the last of the three knitr citations the title appeared with R downcased. This is using the apa.csl stylesheet.

Xie, Y. (2014). Knitr: A comprehensive tool for reproducible research in R. 
In V. Stodden, F. Leisch, & R.  D. Peng (Eds.), Implementing reproducible 
computational research. Chapman; Hall/CRC.

Xie, Y. (2015). Dynamic documents with R and knitr (2nd ed.). 
Chapman; Hall/CRC. https://yihui.org/ knitr/

Xie, Y. (2024). Knitr: A general-purpose package for dynamic report generation in r. 
https://yihui.org/kn itr/

Where the last title should end "... for dynamic report generation in R".

I believe I traced the issue down to the last citation not protecting R with {}.

> library(knitr)
> toBibtex(citation("knitr"))
@Manual{,
  title = {knitr: A General-Purpose Package for Dynamic Report Generation in R},
  author = {Yihui Xie},
  year = {2024},
  note = {R package version 1.49},
  url = {https://yihui.org/knitr/},
}

[...]

I'm a little surprised R with their vast package checking doesn't catch this issue, since I imagine knitr isn't the only package with this issue.

Hopefully there is a straightforward fix.

Jen.

> xfun::session_info()
R version 4.4.2 (2024-10-31)
Platform: x86_64-pc-linux-gnu
Running under: Ubuntu 24.04.1 LTS

Locale:
  LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C              
  LC_TIME=en_US.UTF-8        LC_COLLATE=en_US.UTF-8    
  LC_MONETARY=en_US.UTF-8    LC_MESSAGES=en_US.UTF-8   
  LC_PAPER=en_US.UTF-8       LC_NAME=C                 
  LC_ADDRESS=C               LC_TELEPHONE=C            
  LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C       

Package version:
  compiler_4.4.2  evaluate_1.0.3  graphics_4.4.2  grDevices_4.4.2
  highr_0.11      knitr_1.49      methods_4.4.2   stats_4.4.2    
  tools_4.4.2     utils_4.4.2     xfun_0.50       yaml_2.3.10