| tidy_app | A Shiny app to format R code |
| tidy_dir | Format all R scripts under a directory, or specified R scripts |
| tidy_eval | Insert output to source code |
| tidy_file | Format all R scripts under a directory, or specified R scripts |
| tidy_source | Reformat R code while preserving blank lines and comments |
| usage | Show the usage of a function |