From eb4208eb3fc6a851bc60102cccf31987151335ff Mon Sep 17 00:00:00 2001
From: Chris Hanson <org/chris-hanson/cph>
Date: Wed, 25 Mar 1992 23:51:57 +0000
Subject: [PATCH] Add switch to control behavior of PP when AS-CODE? argument
 is defaulted.

---
 v7/src/runtime/pp.scm      | 10 +++++++---
 v7/src/runtime/runtime.pkg |  5 +++--
 v8/src/runtime/runtime.pkg |  5 +++--
 3 files changed, 13 insertions(+), 7 deletions(-)

diff --git a/v7/src/runtime/pp.scm b/v7/src/runtime/pp.scm
index e154b00de..986ba6f53 100644
--- a/v7/src/runtime/pp.scm
+++ b/v7/src/runtime/pp.scm
@@ -1,8 +1,8 @@
 #| -*-Scheme-*-
 
-$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/runtime/pp.scm,v 14.23 1991/11/26 07:06:47 cph Exp $
+$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/runtime/pp.scm,v 14.24 1992/03/25 23:51:47 cph Exp $
 
-Copyright (c) 1988-91 Massachusetts Institute of Technology
+Copyright (c) 1988-92 Massachusetts Institute of Technology
 
 This material was developed by the Scheme project at the Massachusetts
 Institute of Technology, Department of Electrical Engineering and
@@ -65,6 +65,7 @@ MIT in each case. |#
 (define *pp-lists-as-tables?* true)
 (define *pp-forced-x-size* false)
 (define *pp-avoid-circularity?* false)
+(define *pp-default-as-code?* 'IF-SCODE)
 
 (define (pp object #!optional port . rest)
   (let ((port (if (default-object? port) (current-output-port) port)))
@@ -85,7 +86,10 @@ MIT in each case. |#
 (define (pretty-print object #!optional port as-code? indentation)
   (let ((as-code?
 	 (if (default-object? as-code?)
-	     (not (scode-constant? object))
+	     (let ((default *pp-default-as-code?*))
+	       (if (boolean? default)
+		   default
+		   (not (scode-constant? object))))
 	     as-code?)))
     (pp-top-level (let ((sexp
 			 (if (scode-constant? object)
diff --git a/v7/src/runtime/runtime.pkg b/v7/src/runtime/runtime.pkg
index e72a978bd..e34834f59 100644
--- a/v7/src/runtime/runtime.pkg
+++ b/v7/src/runtime/runtime.pkg
@@ -1,6 +1,6 @@
 #| -*-Scheme-*-
 
-$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/runtime/runtime.pkg,v 14.139 1992/03/25 21:58:21 cph Exp $
+$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/runtime/runtime.pkg,v 14.140 1992/03/25 23:51:57 cph Exp $
 
 Copyright (c) 1988-92 Massachusetts Institute of Technology
 
@@ -1470,6 +1470,8 @@ MIT in each case. |#
   (files "pp")
   (parent ())
   (export ()
+	  *pp-avoid-circularity?*
+	  *pp-default-as-code?*
 	  *pp-forced-x-size*
 	  *pp-lists-as-tables?*
 	  *pp-named-lambda->define?*
@@ -1477,7 +1479,6 @@ MIT in each case. |#
 	  *pp-primitives-by-name*
 	  *pp-save-vertical-space?*
 	  *pp-uninterned-symbols-by-name*
-	  *pp-avoid-circularity?*
 	  make-pretty-printer-highlight
 	  pp
 	  pretty-print)
diff --git a/v8/src/runtime/runtime.pkg b/v8/src/runtime/runtime.pkg
index ea7b2d52d..dc1a009e5 100644
--- a/v8/src/runtime/runtime.pkg
+++ b/v8/src/runtime/runtime.pkg
@@ -1,6 +1,6 @@
 #| -*-Scheme-*-
 
-$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v8/src/runtime/runtime.pkg,v 14.139 1992/03/25 21:58:21 cph Exp $
+$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v8/src/runtime/runtime.pkg,v 14.140 1992/03/25 23:51:57 cph Exp $
 
 Copyright (c) 1988-92 Massachusetts Institute of Technology
 
@@ -1470,6 +1470,8 @@ MIT in each case. |#
   (files "pp")
   (parent ())
   (export ()
+	  *pp-avoid-circularity?*
+	  *pp-default-as-code?*
 	  *pp-forced-x-size*
 	  *pp-lists-as-tables?*
 	  *pp-named-lambda->define?*
@@ -1477,7 +1479,6 @@ MIT in each case. |#
 	  *pp-primitives-by-name*
 	  *pp-save-vertical-space?*
 	  *pp-uninterned-symbols-by-name*
-	  *pp-avoid-circularity?*
 	  make-pretty-printer-highlight
 	  pp
 	  pretty-print)
-- 
2.25.1