source: trunk/j/src/org/armedbear/lisp/with-standard-io-syntax.lisp @ 6437

Last change on this file since 6437 was 6437, checked in by piso, 17 years ago

(in-package "SYSTEM")

File size: 2.7 KB
Line 
1;;; with-standard-io-syntax.lisp
2;;;
3;;; Copyright (C) 2003-2004 Peter Graves
4;;; $Id: with-standard-io-syntax.lisp,v 1.2 2004-04-03 00:20:09 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(in-package "SYSTEM")
23
24(defun %with-standard-io-syntax (function)
25  (let ((*package* (find-package "CL-USER"))
26        (*print-array* t)
27        (*print-base* 10)
28        (*print-case* :upcase)
29        (*print-circle* nil)
30        (*print-escape* t)
31        (*print-gensym* t)
32        (*print-length* nil)
33        (*print-level* nil)
34        (*print-lines* nil)
35        (*print-miser-width* nil)
36        (*print-pretty* nil)
37        (*print-radix* nil)
38        (*print-readably* t)
39        (*print-right-margin* nil)
40        (*read-base* 10)
41        (*read-default-float-format* 'single-float)
42        (*read-eval* t)
43        (*read-suppress* nil)
44        #+nil ; FIXME
45        (*readtable* std-lisp-readtable))
46    (funcall function)))
47
48(defmacro with-standard-io-syntax (&body body)
49  "Bind the reader and printer control variables to values that enable READ
50   to reliably read the results of PRINT.  These values are:
51   *PACKAGE*                            The COMMON-LISP-USER package
52   *PRINT-ARRAY*                        T
53   *PRINT-BASE*                         10
54   *PRINT-CASE*                         :UPCASE
55   *PRINT-CIRCLE*                       NIL
56   *PRINT-ESCAPE*                       T
57   *PRINT-GENSYM*                       T
58   *PRINT-LENGTH*                       NIL
59   *PRINT-LEVEL*                        NIL
60   *PRINT-LINES*                        NIL
61   *PRINT-MISER-WIDTH*                  NIL
62   *PRINT-PRETTY*                       NIL
63   *PRINT-RADIX*                        NIL
64   *PRINT-READABLY*                     T
65   *PRINT-RIGHT-MARGIN*                 NIL
66   *READ-BASE*                          10
67   *READ-DEFAULT-FLOAT-FORMAT*          SINGLE-FLOAT
68   *READ-EVAL*                          T
69   *READ-SUPPRESS*                      NIL
70   *READTABLE*                          the standard readtable."
71  `(%with-standard-io-syntax #'(lambda () ,@body)))
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