stringr (version 0.6.2)

perl: Use perl regular expressions.

Description

This function specifies that a pattern should use the Perl regular expression egine, rather than the default POSIX 1003.2 extended regular expressions

Usage

perl(string)

Arguments

string

pattern to match with Perl regexps

See Also

Other modifiers: fixed, ignore.case

Examples

pattern <- "(?x)a.b"
strings <- c("abb", "a.b")
str_detect(strings, pattern)
str_detect(strings, perl(pattern))