This function is a shorthand of gsub(pattern, replacement, grep(pattern, x, value = TRUE))
.
grep_sub(pattern, replacement, x, ...)
A character vector.
# find elements that matches 'a[b]+c' and capitalize 'b' with perl regex
xfun::grep_sub("a([b]+)c", "a\\U\\1c", c("abc", "abbbc", "addc", "123"), perl = TRUE)
#> [1] "aBc" "aBBBc"