- string-trimprocedure
- string-trim-rightprocedure
- string-trim-bothprocedure
Trim s by skipping over all characters on the left / on the right / on both sides that satisfy the second parameter pred. pred defaults to char-whitespace?.
If no trimming occurs, these functions may return either s or a copy of s; in some implementations, proper substrings may share memory with s.
(string-trim-both " The outlook wasn't brilliant, \n\r") => "The outlook wasn't brilliant,"