clojure.string/split

(clojure.string/split s sep) (clojure.string/split s sep limit)

Splits s around sep: a pattern value (#"...", re-pattern) splits around matches, a literal string or character splits literally. A positive limit caps the part count, the last part holding the rest; a negative one keeps every part; otherwise trailing empty parts drop. An empty input answers nil for a literal separator and one empty part for a pattern (like the oracle). Reached also as alias/var or a referred bare split; works as a function value too.

Deviation: the answer is a seq, never a vector; string separators stay literal, never patterns.