===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/mandoc/read.c,v
retrieving revision 1.5
retrieving revision 1.6
diff -u -r1.5 -r1.6
--- src/usr.bin/mandoc/read.c	2011/11/05 16:02:18	1.5
+++ src/usr.bin/mandoc/read.c	2012/02/26 21:01:43	1.6
@@ -1,4 +1,4 @@
-/*	$Id: read.c,v 1.5 2011/11/05 16:02:18 schwarze Exp $ */
+/*	$Id: read.c,v 1.6 2012/02/26 21:01:43 schwarze Exp $ */
 /*
  * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2010, 2011 Ingo Schwarze <schwarze@openbsd.org>
@@ -315,9 +315,9 @@
 			 * Warn about bogus characters.  If you're using
 			 * non-ASCII encoding, you're screwing your
 			 * readers.  Since I'd rather this not happen,
-			 * I'll be helpful and drop these characters so
-			 * we don't display gibberish.  Note to manual
-			 * writers: use special characters.
+			 * I'll be helpful and replace these characters
+			 * with "?", so we don't display gibberish.
+			 * Note to manual writers: use special characters.
 			 */
 
 			c = (unsigned char) blk.buf[i];
@@ -325,8 +325,11 @@
 			if ( ! (isascii(c) && 
 					(isgraph(c) || isblank(c)))) {
 				mandoc_msg(MANDOCERR_BADCHAR, curp,
-						curp->line, pos, "ignoring byte");
+						curp->line, pos, NULL);
 				i++;
+				if (pos >= (int)ln.sz)
+					resize_buf(&ln, 256);
+				ln.buf[pos++] = '?';
 				continue;
 			}