char_class: A range or char_class of characters

In richierocks/rebus.base: Core Functionality for the 'rebus' Package

Description

Group characters together in a class to match any of them (char_class) or none of them (negated_char_class).

Usage

char_class(...)

negated_char_class(...)

negate_and_group(...)

Arguments

...	Character vectors.

Value

A character vector representing part or all of a regular expression.

References

http://www.regular-expressions.info/charclass.html

Examples

char_class(LOWER, "._")
negated_char_class(LOWER, "._")

# Usage
x <- (1:10) ^ 2
(rx_odd <- char_class(1, 3, 5, 7, 9))
(rx_not_odd <- negated_char_class(1, 3, 5, 7, 9))
stringi::stri_detect_regex(x, rx_odd)
stringi::stri_detect_regex(x, rx_not_odd)

richierocks/rebus.base documentation built on May 27, 2019, 8:47 a.m.