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%% Oh Emacs, this is a -*- Lisp -*- file despite apperance.
\documentclass{article}
\usepackage{axiom}

\title{\File{src/interp/union.lisp} Pamphlet}
\author{Timothy Daly}

\begin{document}
\maketitle

\begin{abstract}
\end{abstract}

\tableofcontents
\eject

\section{License}

<<license>>=
;; 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.

@
<<*>>=
<<license>>

(IMPORT-MODULE "vmlisp")
(in-package "VMLISP")
;;macros from file vmlisp are necessary to compile this file

(DEFUN |intersection|  (LIST-OF-ITEMS-1 LIST-OF-ITEMS-2)
    (PROG (I H V)
      (SETQ V (SETQ H (CONS NIL NIL)))
      (COND
        ( (NOT (LISTP LIST-OF-ITEMS-1))
          (SETQ LIST-OF-ITEMS-1 (LIST LIST-OF-ITEMS-1)) ) )
      (COND
        ( (NOT (LISTP LIST-OF-ITEMS-2))
          (SETQ LIST-OF-ITEMS-2 (LIST LIST-OF-ITEMS-2)) ) )
  LP  (COND
        ( (NOT (PAIRP LIST-OF-ITEMS-1))
          (RETURN (QCDR H)) )
        ( (|member|
            (SETQ I (QCAR (RESETQ LIST-OF-ITEMS-1 (QCDR LIST-OF-ITEMS-1))))
            (QCDR H)) )
        ( (|member| I LIST-OF-ITEMS-2)
          (QRPLACD V (SETQ V (CONS I NIL))) ) )
      (GO LP) ) )

(DEFUN INTERSECTIONQ (LIST-OF-ITEMS-1 LIST-OF-ITEMS-2)
    (PROG (I H V)
      (SETQ V (SETQ H (CONS NIL NIL)))
      (COND
        ( (NOT (LISTP LIST-OF-ITEMS-1))
          (SETQ LIST-OF-ITEMS-1 (LIST LIST-OF-ITEMS-1)) ) )
      (COND
        ( (NOT (LISTP LIST-OF-ITEMS-2))
          (SETQ LIST-OF-ITEMS-2 (LIST LIST-OF-ITEMS-2)) ) )
  LP  (COND
        ( (NOT (PAIRP LIST-OF-ITEMS-1))
          (RETURN (QCDR H)) )
        ( (QMEMQ
            (SETQ I (QCAR (RESETQ LIST-OF-ITEMS-1 (QCDR LIST-OF-ITEMS-1))))
            (QCDR H)) )
        ( (QMEMQ I LIST-OF-ITEMS-2)
          (QRPLACD V (SETQ V (CONS I NIL))) ) )
      (GO LP) ) )

(DEFUN |union| (LIST-OF-ITEMS-1 LIST-OF-ITEMS-2)
    (PROG (I H V)
      (SETQ H (SETQ V (CONS NIL NIL)))
      (COND
        ( (NOT (LISTP LIST-OF-ITEMS-1))
          (SETQ LIST-OF-ITEMS-1 (LIST LIST-OF-ITEMS-1)) ) )
      (COND
        ( (NOT (LISTP LIST-OF-ITEMS-2))
          (SETQ LIST-OF-ITEMS-2 (LIST LIST-OF-ITEMS-2)) ) )
  LP1 (COND
        ( (NOT (PAIRP LIST-OF-ITEMS-1))
          (COND
            ( (PAIRP LIST-OF-ITEMS-2)
              (SETQ LIST-OF-ITEMS-1 (RESETQ LIST-OF-ITEMS-2 NIL)) )
            ( 'T
              (RETURN (QCDR H)) ) ) )
        ( (NOT
            (|member|
              (SETQ I (QCAR (RESETQ LIST-OF-ITEMS-1 (QCDR LIST-OF-ITEMS-1))))
              (QCDR H)))
          (QRPLACD V (SETQ V (CONS I NIL))) ) )
      (GO LP1) ) )

(DEFUN UNIONQ (LIST-OF-ITEMS-1 LIST-OF-ITEMS-2)
    (PROG (I H V)
      (SETQ H (SETQ V (CONS NIL NIL)))
      (COND
        ( (NOT (LISTP LIST-OF-ITEMS-1))
          (SETQ LIST-OF-ITEMS-1 (LIST LIST-OF-ITEMS-1)) ) )
      (COND
        ( (NOT (LISTP LIST-OF-ITEMS-2))
          (SETQ LIST-OF-ITEMS-2 (LIST LIST-OF-ITEMS-2)) ) )
  LP1 (COND
        ( (NOT (PAIRP LIST-OF-ITEMS-1))
          (COND
            ( (PAIRP LIST-OF-ITEMS-2)
              (SETQ LIST-OF-ITEMS-1 (RESETQ LIST-OF-ITEMS-2 NIL)) )
            ( 'T
              (RETURN (QCDR H)) ) ) )
        ( (NOT
            (QMEMQ
              (SETQ I (QCAR (RESETQ LIST-OF-ITEMS-1 (QCDR LIST-OF-ITEMS-1))))
              (QCDR H)))
          (QRPLACD V (SETQ V (CONS I NIL))) ) )
      (GO LP1) ) )

(DEFUN SETDIFFERENCE (LIST-OF-ITEMS-1 LIST-OF-ITEMS-2)
    (PROG (I H V)
      (SETQ H (SETQ V (CONS NIL NIL)))
      (COND
        ( (NOT (LISTP LIST-OF-ITEMS-1))
          (SETQ LIST-OF-ITEMS-1 (LIST LIST-OF-ITEMS-1)) ) )
      (COND
        ( (NOT (LISTP LIST-OF-ITEMS-2))
          (SETQ LIST-OF-ITEMS-2 (LIST LIST-OF-ITEMS-2)) ) )
  LP1 (COND
        ( (NOT (PAIRP LIST-OF-ITEMS-1))
          (RETURN (QCDR H)) )
        ( (|member|
            (SETQ I (QCAR (RESETQ LIST-OF-ITEMS-1 (QCDR LIST-OF-ITEMS-1))))
            (QCDR H)) )
        ( (NOT (|member| I LIST-OF-ITEMS-2))
          (QRPLACD V (SETQ V (CONS I NIL))) ) )
      (GO LP1) ) )

(DEFUN SETDIFFERENCEQ (LIST-OF-ITEMS-1 LIST-OF-ITEMS-2)
    (PROG (I H V)
      (SETQ H (SETQ V (CONS NIL NIL)))
      (COND
        ( (NOT (LISTP LIST-OF-ITEMS-1))
          (SETQ LIST-OF-ITEMS-1 (LIST LIST-OF-ITEMS-1)) ) )
      (COND
        ( (NOT (LISTP LIST-OF-ITEMS-2))
          (SETQ LIST-OF-ITEMS-2 (LIST LIST-OF-ITEMS-2)) ) )
  LP1 (COND
        ( (NOT (PAIRP LIST-OF-ITEMS-1))
          (RETURN (QCDR H)) )
        ( (QMEMQ
            (SETQ I (QCAR (RESETQ LIST-OF-ITEMS-1 (QCDR LIST-OF-ITEMS-1))))
            (QCDR H)) )
        ( (NOT (QMEMQ I LIST-OF-ITEMS-2))
          (QRPLACD V (SETQ V (CONS I NIL))) ) )
      (GO LP1) ) )
@
\eject
\begin{thebibliography}{99}
\bibitem{1} nothing
\end{thebibliography}
\end{document}