regex: Regular expression usage with sensible defaults

In Ironholds/olivr: Oliver's personal R package

Description

you want regular expressions to be accurate and fast. This usually translates to either (perl=TRUE, useBytes=TRUE, ignore.case=TRUE) or just fixed=TRUE. Why bother having to type those in every time?

Also, let's be honest, gsub is normally used to get rid of substrings you don't want, with replacement = "" - so let's have a function that just does that.

Usage

fast_grepl(x, pattern, ignore_case = TRUE)

fixed_grepl(x, pattern)

fast_remove(x, pattern, ignore_case = TRUE)

fixed_remove(x, pattern, ignore_case = TRUE)

fast_substitute(x, pattern, replacement, ignore_case = TRUE)

fixed_substitute(x, pattern, replacement)

Arguments

x	the vector to run the regex over looking for matches
pattern	the regular expression to use.
ignore_case	whether to ignore the casing of x when comparing to the pattern or not.
replacement	a string to replace matches with.

Ironholds/olivr documentation built on May 7, 2019, 6:40 a.m.