rx_any_of: Match any of these characters exactly once.

In RVerbalExpressions: Create Regular Expressions Easily

Match any of these characters exactly once.

Description

Constructs a character class, sometimes called a character set. With this particular expression, you can tell the regex engine to match only one out of several characters. It does this by simply placing the characters you want to match between square brackets.

Usage

rx_any_of(.data = NULL, value)

Arguments

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

References

Character class: https://www.regular-expressions.info/charclass.html

Examples

rx_any_of(value = "abc")

# create an expression
x <- rx_any_of(value = "abc")

grepl(x, "c") # should be true
grepl(x, "d") # should be false

y <- rx() %>%
  rx_find("gr") %>%
  rx_any_of("ae") %>%
  rx_find("y")

regmatches("gray", regexec(y, "gray"))[[1]]
regmatches("grey", regexec(y, "grey"))[[1]]

RVerbalExpressions documentation built on May 29, 2024, 6:47 a.m.