knitr::opts_chunk$set(comment = "#>", collapse = T) library(stringr)
This release is mostly bug fixes, but there are a couple of new features you might care out.
There are three new datasets,
sentences, to help you practice your regular expression skills:
str_subset(fruit, "(..)\\1") head(words) sentences
More functions work with
str_subset()can detect boundaries, and
str_extract_all()pull out the components between boundaries. This is particularly useful if you want to extract logical constructs like words or sentences.
x <- "This is harder than you might expect, e.g. punctuation!" x %>% str_extract_all(boundary("word")) %>% .[] x %>% str_extract(boundary("sentence"))
str_view_all()create HTML widgets that display regular expression matches. This is particularly useful for teaching.