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;; Copyright (c) 1991-2002, The Numerical ALgorithms Group Ltd.
;; All rights reserved.
;;
;; Redistribution and use in source and binary forms, with or without
;; modification, are permitted provided that the following conditions are
;; met:
;;
;; - Redistributions of source code must retain the above copyright
;; notice, this list of conditions and the following disclaimer.
;;
;; - Redistributions in binary form must reproduce the above copyright
;; notice, this list of conditions and the following disclaimer in
;; the documentation and/or other materials provided with the
;; distribution.
;;
;; - Neither the name of The Numerical ALgorithms Group Ltd. nor the
;; names of its contributors may be used to endorse or promote products
;; derived from this software without specific prior written permission.
;;
;; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
;; IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
;; TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
;; PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
;; OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
;; EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
;; PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
;; PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
;; LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
;; NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
;; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
(IMPORT-MODULE "vmlisp")
(in-package "BOOT")
(DEFUN LEXGREATERP (COMPERAND-1 COMPERAND-2)
;; "Order of types: pair NIL vec ivec/rvec cvec ident num fbpi mbpi other"
(COND
((EQ COMPERAND-1 COMPERAND-2) NIL)
((consp COMPERAND-1)
(COND
( (consp COMPERAND-2)
(COND
( (EQUAL (qcar COMPERAND-1) (qcar COMPERAND-2))
(LEXGREATERP (qcdr COMPERAND-1) (qcdr COMPERAND-2)) )
( (LEXGREATERP (qcar COMPERAND-1) (qcar COMPERAND-2)) ) ) )
('else t)))
((consp COMPERAND-2) NIL)
((NULL COMPERAND-1) 'T )
((NULL COMPERAND-2) NIL)
((VECP COMPERAND-1)
(COND
((VECP COMPERAND-2) (LEXVGREATERP COMPERAND-1 COMPERAND-2) )
('else t)))
((VECP COMPERAND-2) NIL)
((OR (IVECP COMPERAND-1) (RVECP COMPERAND-1))
(COND
( (OR (IVECP COMPERAND-2) (RVECP COMPERAND-2))
(LEXVGREATERP COMPERAND-1 COMPERAND-2) )
('else t)))
((OR (IVECP COMPERAND-2) (RVECP COMPERAND-2)) NIL )
((stringp COMPERAND-1)
(COND
((stringp COMPERAND-2)
(STRING-GREATERP COMPERAND-1 COMPERAND-2) )
('else t)))
((stringp COMPERAND-2) NIL)
((symbolp COMPERAND-1)
(COND
((symbolp COMPERAND-2)
(STRING-GREATERP (symbol-name COMPERAND-1) (symbol-name COMPERAND-2)) )
('else t)))
((symbolp COMPERAND-2) NIL )
((numberp COMPERAND-1)
(COND
( (numberp COMPERAND-2)
(> COMPERAND-1 COMPERAND-2) )
('else t)))
((numberp COMPERAND-2) NIL)
((CHARACTERP COMPERAND-1)
(COND
((CHARACTERP COMPERAND-2)
(CHAR-GREATERP COMPERAND-1 COMPERAND-2) )
('else t)))
((CHARACTERP COMPERAND-2) NIL )
((FBPIP COMPERAND-1)
(COND
((FBPIP COMPERAND-2)
(LEXGREATERP (BPINAME COMPERAND-1) (BPINAME COMPERAND-2)) )
('else t)))
((FBPIP COMPERAND-2) NIL)
((MBPIP COMPERAND-1)
(COND
((MBPIP COMPERAND-2)
(LEXGREATERP (BPINAME COMPERAND-1) (BPINAME COMPERAND-2)) )
('else t)))
((MBPIP COMPERAND-2)
NIL )
((> (SXHASH COMPERAND-1) (SXHASH COMPERAND-2)))))
(DEFUN LEXVGREATERP (VECTOR-COMPERAND-1 VECTOR-COMPERAND-2)
(declare (simple-vector vector-comperand-1 vector-comperand-2))
(let ((I -1)
(L1 (length VECTOR-COMPERAND-1))
(L2 (length VECTOR-COMPERAND-2)))
(declare (fixnum I L1 L2) )
(PROG (T1 T2)
LP
(setq I (1+ I))
(COND ((EQL L1 I)
(RETURN NIL))
((EQL L2 I)
(RETURN 'T)))
(COND ((EQUAL (SETQ T1 (svref VECTOR-COMPERAND-1 I))
(SETQ T2 (svref VECTOR-COMPERAND-2 I)))
(GO LP)))
(RETURN (LEXGREATERP T1 T2)) ) ))
(DEFUN GGREATERP (COMPERAND-1 COMPERAND-2)
;; "Order of types: pair NIL vec ivec/rvec cvec ident num fbpi mbpi other"
(COND
((EQ COMPERAND-1 COMPERAND-2) NIL)
((symbolp COMPERAND-1)
(COND
((symbolp COMPERAND-2)
(CGREATERP (symbol-name COMPERAND-1) (symbol-name COMPERAND-2)) )
('else t)))
((symbolp COMPERAND-2) NIL )
((consp COMPERAND-1)
(COND
( (consp COMPERAND-2)
(COND
( (EQUAL (qcar COMPERAND-1) (qcar COMPERAND-2))
(GGREATERP (qcdr COMPERAND-1) (qcdr COMPERAND-2)) )
( (GGREATERP (qcar COMPERAND-1) (qcar COMPERAND-2)) ) ) )
('else t)))
((consp COMPERAND-2) NIL)
((NULL COMPERAND-1) 'T )
((NULL COMPERAND-2) NIL)
((VECP COMPERAND-1)
(COND
((VECP COMPERAND-2) (VGREATERP COMPERAND-1 COMPERAND-2) )
('else t)))
((VECP COMPERAND-2) NIL)
((OR (IVECP COMPERAND-1) (RVECP COMPERAND-1))
(COND
( (OR (IVECP COMPERAND-2) (RVECP COMPERAND-2))
(VGREATERP COMPERAND-1 COMPERAND-2) )
('else t)))
((OR (IVECP COMPERAND-2) (RVECP COMPERAND-2)) NIL )
((stringp COMPERAND-1)
(COND
((stringp COMPERAND-2)
(CGREATERP COMPERAND-1 COMPERAND-2) )
('else t)))
((stringp COMPERAND-2) NIL)
((numberp COMPERAND-1)
(COND
( (numberp COMPERAND-2)
(> COMPERAND-1 COMPERAND-2) )
('else t)))
((numberp COMPERAND-2) NIL)
((CHARACTERP COMPERAND-1)
(COND
((CHARACTERP COMPERAND-2)
(CHAR> COMPERAND-1 COMPERAND-2) )
('else t)))
((CHARACTERP COMPERAND-2) NIL )
((FBPIP COMPERAND-1)
(COND
((FBPIP COMPERAND-2)
(GGREATERP (BPINAME COMPERAND-1) (BPINAME COMPERAND-2)) )
('else t)))
((FBPIP COMPERAND-2) NIL)
((MBPIP COMPERAND-1)
(COND
((MBPIP COMPERAND-2)
(GGREATERP (BPINAME COMPERAND-1) (BPINAME COMPERAND-2)) )
('else t)))
((MBPIP COMPERAND-2)
NIL )
((> (SXHASH COMPERAND-1) (SXHASH COMPERAND-2)))))
(DEFUN VGREATERP (VECTOR-COMPERAND-1 VECTOR-COMPERAND-2)
(declare (simple-vector vector-comperand-1 vector-comperand-2))
(let ((I -1)
(L1 (length VECTOR-COMPERAND-1))
(L2 (length VECTOR-COMPERAND-2)))
(declare (fixnum I L1 L2))
(PROG (T1 T2)
LP
(setq I (1+ I))
(COND ((EQL L1 I)
(RETURN NIL))
((EQL L2 I)
(RETURN 'T)))
(COND ((EQUAL (SETQ T1 (svref VECTOR-COMPERAND-1 I))
(SETQ T2 (svref VECTOR-COMPERAND-2 I)))
(GO LP)))
(RETURN (GGREATERP T1 T2)) ) ))
(defvar SORTGREATERP #'GGREATERP "default sorting predicate")
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