X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcode%2Fearly-extensions.lisp;h=cf747759d74f05b50491bcdfd74c7a62549b34c8;hb=cd13034f9415f64cdaa05893a4ac5ff1e95c97bd;hp=065f5694c562075dccc16aecd91c82ea2450a674;hpb=c41cb4c87eae7b04f844dca5f7edb5086c5d2d68;p=sbcl.git

diff --git a/src/code/early-extensions.lisp b/src/code/early-extensions.lisp
index 065f569..cf74775 100644
--- a/src/code/early-extensions.lisp
+++ b/src/code/early-extensions.lisp
@@ -1138,3 +1138,31 @@ which can be found at <http://sbcl.sourceforge.net/>.~:@>"
 (defun promise-ready-p (promise)
   (or (not (consp promise))
       (car promise)))
+
+;;; toplevel helper
+(defmacro with-rebound-io-syntax (&body body)
+  `(%with-rebound-io-syntax (lambda () ,@body)))
+
+(defun %with-rebound-io-syntax (function)
+  (declare (type function function))
+  (let ((*package* *package*)
+	(*print-array* *print-array*)
+	(*print-base* *print-base*)
+	(*print-case* *print-case*)
+	(*print-circle* *print-circle*)
+	(*print-escape* *print-escape*)
+	(*print-gensym* *print-gensym*)
+	(*print-length* *print-length*)
+	(*print-level* *print-level*)
+	(*print-lines* *print-lines*)
+	(*print-miser-width* *print-miser-width*)
+	(*print-pretty* *print-pretty*)
+	(*print-radix* *print-radix*)
+	(*print-readably* *print-readably*)
+	(*print-right-margin* *print-right-margin*)
+	(*read-base* *read-base*)
+	(*read-default-float-format* *read-default-float-format*)
+	(*read-eval* *read-eval*)
+	(*read-suppress* *read-suppress*)
+	(*readtable* *readtable*))
+    (funcall function)))