This expression is almost identical to rx_anything() with one major exception, a + is used instead of a *. This means rx_something() expects something whereas anything() expects anything including... nothing!

rx_something(.data = NULL, mode = "greedy")

Arguments

.data

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

mode

Matching mode (greedy (default) orlazy). Lazy matching stops after the first match, greedy continues searching until end of the string and then back-tracks to the last match.

References

Metacharacters: https://www.regular-expressions.info/characters.html#special

Greedy and Lazy Quantifiers: https://www.regular-expressions.info/repeat.html#greedy

Examples

rx_something()
#> [1] "(.+)"
# construct an expression x <- rx_something() grepl(x, "something!") # this should be true
#> [1] TRUE
grepl(x, "") # this should be false
#> [1] FALSE
grepl(rx_anything(), "") # this should be true
#> [1] TRUE