From 58183ac7407342c194ffec9cddba326b0565543e Mon Sep 17 00:00:00 2001
From: Eli Barzilay <eli@barzilay.org>
Date: Mon, 23 May 2011 14:04:06 -0400
Subject: [PATCH] Go down boxes too.

original commit: 7f6733b61706fb421669a198b0701869e3345093
---
 collects/scribble/text/output.rkt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/collects/scribble/text/output.rkt b/collects/scribble/text/output.rkt
index 90f6eaa2..fe15fb1c 100644
--- a/collects/scribble/text/output.rkt
+++ b/collects/scribble/text/output.rkt
@@ -117,6 +117,7 @@
       ;; delayed values
       [(and (procedure? x) (procedure-arity-includes? x 0)) (loop (x))]
       [(promise? x) (loop (force x))]
+      [(box?     x) (loop (unbox x))]
       ;; special output wrappers
       [(special? x)
        (let ([c (special-contents x)])