(library (scheme char)
  (export char-alphabetic? char-ci<=?
          char-ci<? char-ci=?
          char-ci>=? char-ci>?
          char-downcase char-foldcase
          char-lower-case? char-numeric?
          char-upcase char-upper-case?
          char-whitespace? ;; digit-value
          string-ci<=? string-ci<?
          string-ci=? string-ci>=?
          string-ci>? string-downcase
          string-foldcase string-upcase)
  (import (chezscheme)))
