===================================================================
RCS file: /cvs/mandoc/regress/mdoc/Bd/blank.in,v
retrieving revision 1.2
retrieving revision 1.3
diff -u -p -r1.2 -r1.3
--- mandoc/regress/mdoc/Bd/blank.in	2017/07/04 15:25:20	1.2
+++ mandoc/regress/mdoc/Bd/blank.in	2022/08/15 18:12:31	1.3
@@ -1,5 +1,5 @@
-.\" $OpenBSD: blank.in,v 1.2 2017/07/04 15:25:20 schwarze Exp $
-.Dd $Mdocdate: July 4 2017 $
+.\" $OpenBSD: blank.in,v 1.3 2022/08/15 18:12:31 schwarze Exp $
+.Dd $Mdocdate: August 15 2022 $
 .Dt BD-BLANK 1
 .Os
 .Sh NAME
@@ -15,6 +15,14 @@ line containing two blank characters:
   
 line containing space tab space:
  	 
+line containing a zero-width space:
+\&
+line containing an invalid numbered character escape:
+\N'257'
+line containing an invalid named character escape:
+\[foobar]
+line containing a font escape:
+\fR
 line starting with a blank character:
  x
 line starting with two blank characters: