Prefix the special characters with a blackslash to make them literal
characters.
Usage
escape_special(x, escape_brace = TRUE)
Arguments
x
A character vector.
escape_brace
A logical value indicating if opening braces should be
escaped. If using R's internal PRCE engine or stringi's ICU engine,
you want this. If using the perl engine, you don't.
Value
A character vector, with regex meta-characters escaped.