(library (rnrs unicode (6)) (export char-upcase char-downcase char-titlecase char-foldcase char-ci=? char-ci<? char-ci>? char-ci<=? char-ci>=? char-alphabetic? char-numeric? char-whitespace? char-upper-case? char-lower-case? char-general-category string-upcase string-downcase string-titlecase string-foldcase string-ci=? string-ci<? string-ci>? string-ci<=? string-ci>=? string-normalize-nfd string-normalize-nfkd string-normalize-nfc string-normalize-nfkc) (import (core primitives)))