rx_alpha: Match alphabetic characters.

In RVerbalExpressions: Create Regular Expressions Easily

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 Nov. 6, 2019, 5:08 p.m.