/usr/share/acl2-4.3/books/unicode/read-file-objects.lisp is in acl2-books-source 4.3-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 | ;; Processing Unicode Files with ACL2
;; Copyright (C) 2005-2006 by Jared Davis <jared@cs.utexas.edu>
;;
;; This program is free software; you can redistribute it and/or modify it
;; under the terms of the GNU General Public License as published by the Free
;; Software Foundation; either version 2 of the License, or (at your option)
;; any later version.
;;
;; This program is distributed in the hope that it will be useful but WITHOUT
;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
;; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
;; more details.
;;
;; You should have received a copy of the GNU General Public License along with
;; this program; if not, write to the Free Software Foundation, Inc., 59 Temple
;; Place - Suite 330, Boston, MA 02111-1307, USA.
(in-package "ACL2")
(include-book "file-measure")
(local (include-book "open-input-channel"))
(local (include-book "close-input-channel"))
(local (include-book "read-object"))
(local (include-book "tools/mv-nth" :dir :system))
(set-state-ok t)
(defun tr-read-object-all (channel state acc)
(declare (xargs :guard (and (state-p state)
(symbolp channel)
(open-input-channel-p channel :object state)
(true-listp acc))
:measure (file-measure channel state)))
(if (mbt (state-p state))
(mv-let (eofp obj state)
(read-object channel state)
(if eofp
(mv (reverse acc) state)
(tr-read-object-all channel state (cons obj acc))))
(mv nil state)))
(defun read-object-all (channel state)
(declare (xargs :guard (and (state-p state)
(symbolp channel)
(open-input-channel-p channel :object state))
:measure (file-measure channel state)
:verify-guards nil))
(mbe
:logic (if (state-p state)
(mv-let (eofp obj state)
(read-object channel state)
(if eofp
(mv nil state)
(mv-let (rest state)
(read-object-all channel state)
(mv (cons obj rest) state))))
(mv nil state))
:exec (tr-read-object-all channel state nil)))
(defun read-file-objects (filename state)
(declare (xargs :guard (and (state-p state)
(stringp filename))
:verify-guards nil))
(mv-let (channel state)
(open-input-channel filename :object state)
(if channel
(mv-let (data state)
(read-object-all channel state)
(let ((state (close-input-channel channel state)))
(mv data state)))
(mv "Error opening file." state))))
(encapsulate
()
(local (defthm lemma-decompose-impl
(equal (tr-read-object-all channel state acc)
(list (mv-nth 0 (tr-read-object-all channel state acc))
(mv-nth 1 (tr-read-object-all channel state acc))))
:rule-classes nil))
(local (defthm lemma-decompose-spec
(equal (read-object-all channel state)
(list (mv-nth 0 (read-object-all channel state))
(mv-nth 1 (read-object-all channel state))))
:rule-classes nil))
(local (defthm lemma-data-equiv
(implies (and (state-p1 state)
(symbolp channel)
(open-input-channel-p1 channel :object state)
(true-listp acc))
(equal (mv-nth 0 (tr-read-object-all channel state acc))
(revappend acc (mv-nth 0 (read-object-all channel state)))))))
(local (defthm lemma-state-equiv
(equal (mv-nth 1 (tr-read-object-all channel state acc))
(mv-nth 1 (read-object-all channel state)))))
(local (defthm lemma-equiv
(implies (and (state-p1 state)
(symbolp channel)
(open-input-channel-p1 channel :object state))
(equal (tr-read-object-all channel state nil)
(read-object-all channel state)))
:hints(("Goal" :in-theory (disable tr-read-object-all read-object-all)
:use ((:instance lemma-decompose-impl (acc nil))
(:instance lemma-decompose-spec)
(:instance lemma-data-equiv (acc nil)))))))
(verify-guards read-object-all))
(defthm state-p1-of-read-object-all
(implies (and (force (state-p1 state))
(force (symbolp channel))
(force (open-input-channel-p1 channel :object state)))
(state-p1 (mv-nth 1 (read-object-all channel state)))))
(defthm open-input-channel-p1-of-read-object-all
(implies (and (force (state-p1 state))
(force (symbolp channel))
(force (open-input-channel-p1 channel :object state)))
(open-input-channel-p1 channel :object
(mv-nth 1 (read-object-all channel state)))))
(defthm true-listp-of-read-object-all
(true-listp (mv-nth 0 (read-object-all channel state)))
:rule-classes (:rewrite :type-prescription)
:hints(("Goal" :in-theory (enable read-object-all))))
(verify-guards read-file-objects)
(defthm state-p1-of-read-file-objects
(implies (and (force (state-p1 state))
(force (stringp filename)))
(state-p1 (mv-nth 1 (read-file-objects filename state)))))
(defthm true-listp-of-read-file-objects
(implies (and (not (stringp (mv-nth 0 (read-file-objects filename state))))
(force (state-p1 state))
(force (stringp filename)))
(true-listp (mv-nth 0 (read-file-objects filename state))))
:hints(("Goal" :in-theory (enable read-file-objects))))
(in-theory (disable tr-read-object-all
read-object-all
read-file-objects))
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