char-not-lessp
type: predicate function (subr) location: built-in source file: xlstr.c Common LISP compatible: yes supported on: all machines
SYNTAX
(char-not-lessp <char1> <charN> ... )
<char1> - a character expression
<charN> - character expression(s) to compare
DESCRIPTION
The CHAR-NOT-LESSP function takes one or more character arguments. It checks to see if all the character arguments are monotonically non-increasing. T is returned if the arguments are of monotonically non-increasing ASCII value. In the case of two arguments, this has the effect of testing if <char1> is greater than or equal to <char2>. This test is case insensitive - the character #\a is considered to be the same ASCII value as #\A.
EXAMPLES
(char-not-lessp #\a #\b) ; returns NIL (char-not-lessp #\b #\a) ; returns T (char-not-lessp #\c #\b #\a) ; returns T (char-not-lessp #\a #\a) ; returns T (char-not-lessp #\c #\a #\b) ; returns NIL (char-not-lessp #\A #\a) ; returns T (char-not-lessp #\a #\A) ; returns T