char_class {rebus.base} | R Documentation |
A range or char_class of characters
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)
[Package rebus.base version 0.0-3 Index]