alphanumericp alpha-char-p digit-char digit-char-p both-case-p lower-case-p upper-case-p char< char<= char/= char= char>= char> char-lessp char-not-greaterp char-not-equal char-equal char-not-lessp char-greaterp char-code code-char char-int char-downcase char-upcase char-name name-char character characterp standard-char-p graphic-char-p