Find beginning or end of a word.

Match beginning or end of a word—a string consisting of of word characters (a–z, A–Z, 0–9 or _).

rx_word_edge(.data = NULL)

Arguments

.data	Expression to append, typically pulled from the pipe %>%

Examples

rx_word_edge()
#> [1] "\\b"

x <- rx() %>%
 rx_word_edge() %>%
 rx_alpha() %>%
 rx_one_or_more() %>%
 rx_word_edge()

# create inputs
string1 <- "foobar"
string2 <- "foo 23a bar"

# matches 'foobar'
regmatches(string1, regexpr(x, string1))
#> [1] "foobar"
# matches 'foo' and 'bar' separately
regmatches(string2, gregexpr(x, string2))
#> [[1]]
#> [1] "foo" "bar"
#>