source: trunk/j/src/org/armedbear/lisp/with-standard-io-syntax.lisp @ 4138

Last change on this file since 4138 was 4138, checked in by piso, 18 years ago

Initial checkin.

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1;;; with-standard-io-syntax.lisp
2;;;
3;;; Copyright (C) 2003 Peter Graves
4;;; $Id: with-standard-io-syntax.lisp,v 1.1 2003-09-29 18:10:36 piso Exp $
5;;;
6;;; This program is free software; you can redistribute it and/or
7;;; modify it under the terms of the GNU General Public License
8;;; as published by the Free Software Foundation; either version 2
9;;; of the License, or (at your option) any later version.
10;;;
11;;; This program is distributed in the hope that it will be useful,
12;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
13;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14;;; GNU General Public License for more details.
15;;;
16;;; You should have received a copy of the GNU General Public License
17;;; along with this program; if not, write to the Free Software
18;;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
19
20;;; From CMUCL.
21
22(defun %with-standard-io-syntax (function)
23  (let ((*package* (find-package "CL-USER"))
24        (*print-array* t)
25        (*print-base* 10)
26        (*print-case* :upcase)
27        (*print-circle* nil)
28        (*print-escape* t)
29        (*print-gensym* t)
30        (*print-length* nil)
31        (*print-level* nil)
32        (*print-lines* nil)
33        (*print-miser-width* nil)
34        (*print-pretty* nil)
35        (*print-radix* nil)
36        (*print-readably* t)
37        (*print-right-margin* nil)
38        (*read-base* 10)
39        (*read-default-float-format* 'single-float)
40        (*read-eval* t)
41        (*read-suppress* nil)
42        #+nil ; FIXME
43        (*readtable* std-lisp-readtable))
44    (funcall function)))
45
46(defmacro with-standard-io-syntax (&body body)
47  "Bind the reader and printer control variables to values that enable READ
48   to reliably read the results of PRINT.  These values are:
49   *PACKAGE*                            The COMMON-LISP-USER package
50   *PRINT-ARRAY*                        T
51   *PRINT-BASE*                         10
52   *PRINT-CASE*                         :UPCASE
53   *PRINT-CIRCLE*                       NIL
54   *PRINT-ESCAPE*                       T
55   *PRINT-GENSYM*                       T
56   *PRINT-LENGTH*                       NIL
57   *PRINT-LEVEL*                        NIL
58   *PRINT-LINES*                        NIL
59   *PRINT-MISER-WIDTH*                  NIL
60   *PRINT-PRETTY*                       NIL
61   *PRINT-RADIX*                        NIL
62   *PRINT-READABLY*                     T
63   *PRINT-RIGHT-MARGIN*                 NIL
64   *READ-BASE*                          10
65   *READ-DEFAULT-FLOAT-FORMAT*          SINGLE-FLOAT
66   *READ-EVAL*                          T
67   *READ-SUPPRESS*                      NIL
68   *READTABLE*                          the standard readtable."
69  `(%with-standard-io-syntax #'(lambda () ,@body)))
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