stringr 1.1.0

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, fruit, words and sentences, to help you practice your regular expression skills:

    str_subset(fruit, "(..)\\1") head(words) sentences[1]
  • More functions work with boundary(): str_detect() and str_subset() can detect boundaries, and str_extract() 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")) %>% .[[1]] x %>% str_extract(boundary("sentence"))
  • str_view() and str_view_all() create HTML widgets that display regular expression matches. This is particularly useful for teaching.