rx: Constructs a Verbal Expression

In RVerbalExpressions: Create Regular Expressions Easily

Description

Add this to the beginning of every verbal expression chain. This simply returns an empty character vector so that the next step in the chain can provide a value without explicitly writing value = "blah".

Usage

rx()

Examples

rx()

# this
rx() %>%
  rx_find("cat") %>%
  rx_anything() %>%
  rx_find("dog")

# instead of
rx_find(value = "cat") %>%
  rx_anything() %>%
  rx_find("dog")

Example output

character(0)
[1] "(cat)(.*)(dog)"
[1] "(cat)(.*)(dog)"

RVerbalExpressions documentation built on Nov. 6, 2019, 5:08 p.m.