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;; Copyright (c) 1991-2002, The Numerical Algorithms Group Ltd.
;; All rights reserved.
;; Copyright (C) 2007-2008, Gabriel Dos Reis.
;; 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.
;; Uncommon 1.6
;; This package is a Boot interface for Common Lisp.
;; SMW 1989, 1990
(IMPORT-MODULE "sys-macros")
(in-package "BOOT")
;;; This macro catches as much as it can.
;;; Systems with a catchall should use it.
;;; It is legitimate to not catch anything, if there is no system support.
;;;
;;; If the result was caught, then tagvar is set to the desination tag
;;; and the thown value is returned. Otherwise, tagvar is set to nil
;;; and the first result of the expression is returned.
#+:Lucid
(defmacro |CatchAsCan| (tagvar expr)
`(let ((catch-result nil)
(expr-result nil)
(normal-exit (gensym)))
(setq catch-result
(catch 'lucid::top-level
(setq expr-result ,expr)
normal-exit))
(cond
((eq catch-result normal-exit)
(setq ,tagvar nil)
expr-result )
('t
(setq ,tagvar 'lucid::top-level)
catch-result )) ))
#-:Lucid
(defmacro |CatchAsCan| (tagvar expr)
`(let ((,tagvar nil))
,expr ))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;
;;; General
;;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(defmacro |Eq| (a b)
`(eq ,a ,b) )
(defvar |Nil| nil)
(defun |Sort| (l pred)
(sort (copy-tree l) pred) )
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;
;;; Streams
;;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(defun |Prompt| (line &optional (readfn nil))
(format *query-io* "~a" line)
(when readfn (apply readfn (list *query-io*))) )
(defun |PrettyPrint| (expr &optional (outstream |$OutputStream|))
(write expr :stream outstream :level nil :length nil :pretty 't :escape 't)
(finish-output outstream) )
(defun plain-print-format-string (l)
(format nil "~~~d{~~a~~}~~%" (length l)) )
;;;
;;; Character Sets
;;;
(defun |Cset| (str)
(let
((cset (make-array
(list char-code-limit)
:element-type 'bit
:initial-element 0 ))
(len (length str)) )
(do ((i 0 (+ 1 i)))
((= i len))
(setf (sbit cset (char-code (char str i))) 1) )
cset ))
(defvar |WhiteSpaceCset|
(|Cset| (coerce
(list #\Space #\Newline #\Tab #\Page #\Linefeed #\Return #\Backspace)
'string )) )
;;;
;;; Lists
;;;
(defun |ListMemberQ?| (ob l)
(member ob l :test #'eq) )
(defun |ListRemoveQ| (ob l)
(remove ob l :test #'eq :count 1) )
;;;
;;; Association lists
;;;
(defun |AlistAssocQ| (key l)
(assoc key l :test #'eq) )
(defun |AlistRemoveQ| (key l)
(let ((pr (assoc key l :test #'eq)))
(if pr
(remove pr l :test #'eq)
l) ))
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