R String Split On Parentheses, Keeping The Parentheses In The Split With Its Content
I am trying to split strings of a format
x <- "A(B)C"
where A, B and C could be empty strings or any sets of characters except for parentheses. The parentheses are always there - I want to keep them around the characters they enclose, so that the result would be:
"A" "(B)" "C"
So far my best try was:
strsplit(x, "(?<=\\))|(?=\\()", perl = TRUE) []  "A" "(" "B)" "C"
but that keeps the opening parenthesis separate. Any ideas?
You can use
x <- "A(B)C" library(stringr) str_extract_all(x, "\\([^()]*\\)|[^()]+")
(, zero or more chars other than
[^()]+- one or more chars other than
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