rx_alpha: Match alphabetic characters.
In RVerbalExpressions: Create Regular Expressions Easily

rx_alpha

R Documentation

Match alphabetic characters.

Description

Matches letters (case insensitive) only.

Usage

rx_alpha(.data = NULL, inverse = FALSE)

Arguments

`.data`	Expression to append, typically pulled from the pipe `%>%`
`inverse`	Invert match behavior, defaults to `FALSE` (match alphabetic characters). Use `TRUE` to not match alphabetic characters.

Examples

rx_alpha()
rx_alpha(inverse = TRUE)

# create an expression
x <- rx_alpha()

# create input
string <- "Apple 1!"

# extract match
regmatches(string, gregexpr(x, string))

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