ANSI Common Lisp   13 Characters

13.2 Dictionary of Characters

13.2.1  character
13.2.2  base-char
13.2.3  standard-char
13.2.4  extended-char
13.2.5  char=, char/=, char<, char>, char<=, char>=, char-equal, char-not-equal, char-lessp, char-greaterp, char-not-greaterp, char-not-lessp
13.2.6  character
13.2.7  characterp
13.2.8  alpha-char-p
13.2.9  alphanumericp
13.2.10  digit-char
13.2.11  digit-char-p
13.2.12  graphic-char-p
13.2.13  standard-char-p
13.2.14  char-upcase, char-downcase
13.2.15  upper-case-p, lower-case-p, both-case-p
13.2.16  char-code
13.2.17  char-int
13.2.18  code-char
13.2.19  char-code-limit
13.2.20  char-name
13.2.21  name-char