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SketchyLISP
Reference
  Copyright (C) 2006
Nils M Holm

string-ci<=?

Conformance: R5RS

Purpose: Case-insensitively test whether two strings are in lexically non-descending order.

Arguments:
X - string
Y - string

Implementation:

(define (string-ci<=? x y)
  (eq? (string-ci>? x y) #f))

Example:

(string-ci<=? "abc" "ABC") 
=> #t

See also:
string<=?, string-ci<?, string-ci=?, string-ci>?, string-ci>=?, char-ci<=?, equal?.