SketchyLISP Reference |
Copyright (C) 2006 Nils M Holm |
<<[char-ci<?] | [Index] | [char-ci=?]>> |
Conformance: R5RS
Purpose: Case-insensitively test whether two chars are in lexically non-descending order.
Arguments:
X - char
Y - char
Implementation:
(define (char-ci<=? x y) (eq? (char-ci>? x y) #f))
Example:
(char-ci<=? #\b #\B) => #t
See also:
char<=?,
char-ci<?,
char-ci=?,
char-ci>?,
char-ci>=?,
string<=?,
equal?.
<<[char-ci<?] | [Index] | [char-ci=?]>> |