regex_match_except: Return characters not matching a regular expression

In MilesMcBain/haircut: Give Strings a Tidy Regex Haircut

Description

Given a vector of chracter strings, this function returns portions of the stirng that do not march a pattern, as a vector. This allows a chainable regex filtering style that is readily compatible with ' Capturing groups, '()', will create an error since they generate multiple matches that do not have a sensible inverse. Best to use non-capturing '(?:)'.

Usage

regex_match_except(text, pattern)

Arguments

text	a vector of characer strings to be (un)matched.
pattern	a regular expression.

Value

vector of substrings of 'text' that dit not match the 'pattern'.

MilesMcBain/haircut documentation built on May 21, 2019, 2:31 a.m.