check_subject_pattern

subject.vec

pattern

<p>Error if <code>subject.vec</code> or <code>pattern</code> incorrect type.</p>

User-friendly wrappers for
named capture regular expressions.
Introduction and comparison in research paper
by Hocking (2019), R Journal.
<doi:10.32614/RJ-2019-050>
RE2 engine ('re2r' package)
<https://github.com/qinwf/re2r>
was removed from CRAN in Mar 2020
so must be installed from github.

Toby Hocking

check_subject_pattern: check subject pattern

Description

Usage

Arguments