Be more specific that column tracking works only for ASCII graphic

characters.

diff --git a/v7/src/runtime/genio.scm b/v7/src/runtime/genio.scm
index feceb688105cffa3485c95651e6792c98b29cb1c..9c0ffd125ab5c111f63c44d2fcc3d3d34ae6ce72 100644 (file)
--- a/v7/src/runtime/genio.scm
+++ b/v7/src/runtime/genio.scm
@@ -1,6 +1,6 @@
 #| -*-Scheme-*-
 
-$Id: genio.scm,v 1.55 2007/12/09 05:45:39 cph Exp $
+$Id: genio.scm,v 1.56 2007/12/09 06:12:14 cph Exp $
 
 Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994,
     1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
@@ -977,7 +977,8 @@ USA.
                    ob
                    (cond ((char=? char #\tab)
                           (fix:+ column (fix:- 8 (fix:remainder column 8))))
-                         ((char-graphic? char) (fix:+ column 1))
+                         ((<= #x20 (char->integer char) #x7E)
+                          (fix:+ column 1))
                          (else #f))))))
         #t)))