Give the positions of (, ), [, ], {, } within a string.
Usage
str_locate_braces(string)
Arguments
string
A character vector
Value
A tibble with 4 columns: string_num,
string, position and brace. Every extracted brace amount gets its
own row in the tibble detailing the string number and string that it was
extracted from, the position in its string and the brace.