Description Usage Arguments Value References Examples
Group characters together in a class to match any of them (char_class
)
or none of them (negated_char_class
).
1 2 3 4 5 |
... |
Character vectors. |
A character vector representing part or all of a regular expression.
http://www.regular-expressions.info/charclass.html
1 2 3 4 5 6 7 8 9 | 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)
|
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