E.3 Summary
For a compact and useful overview of R’s regex options, see the Posit cheatsheets on Basic Regular Expressions in R (contributed by Ian Kopacka):
Additionally, the overview of the stringr package (Wickham, 2022) on Posit cheatsheets contains a useful overview on regular expressions:
For more information on creating and manipulating strings of text, see Chapter 9 on Strings of text.
References
Wickham, H. (2022). stringr: Simple, consistent wrappers for common string operations. Retrieved from https://stringr.tidyverse.org