# NOT RUN {
re2_detect("one", "(o.e)")
re2_detect("123-234-2222", "\\d\\d\\d-\\d\\d\\d-\\d\\d\\d\\d")
words = c("sunny","beach","happy","really")
re2_detect(words, "y")
re2_detect(words, "^b")
re2_detect(words, "[abc]")
# vectorize
(res = re2_detect("This", letters))
letters[res]
letters[re2_detect("This", letters, case_sensitive = FALSE)]
letters[re2_detect("This", re2(letters, case_sensitive = FALSE))]
# In stringi, "" empty search patterns return NA.
# In re2r, empty search patterns will match
# empty string.
re2_detect("abc", "")
stringi::stri_detect("abc", regex = "")
# }
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