To cite package ‘regexplain’ in publications use:

Aden-Buie G (2021). regexplain: Rstudio Addin to Explain, Test and Build Regular Expressions. R package version 0.2.2.9000, https://github.com/gadenbuie/regexplain.

Corresponding BibTeX entry:

  @Manual{,
    title = {regexplain: Rstudio Addin to Explain, Test and Build
      Regular Expressions},
    author = {Garrick Aden-Buie},
    year = {2021},
    note = {R package version 0.2.2.9000},
    url = {https://github.com/gadenbuie/regexplain},
  }