grapes-m-grapes: Perl style infix match function

In jimhester/perlrer: perlrer - perl regular expression syntax and results in R

Description

This function allows the match syntax to mimic perl's very closely. As in perl the first character is used as a delimiter to separate the regular expression and options. Paired delimiters are supported as in perl, so both '/this/' and 'this' are both supported for instance.

Usage

data %m% pattern

Arguments

pattern	a character delimited regular expression pattern like those in perl
data	character vector to match against

Examples

string = c('this is a Test', 'string')
string %m% '/test/i'
#paired delimiters
string %m% '{test}i'
#captures return numbered results
string %m% '!(string)!'
#named captures
string %m% '/(?<type>string)/'
# g option also
string %m% '{(\\w+)}g'

jimhester/perlrer documentation built on May 19, 2019, 10:33 a.m.