provide a STYLE message when mandoc knows the file name and the extension

disagrees with the section number given in the .Dt or .TH macro;
feature suggested and patch tested by jmc@

1 files changed, 3 insertions, 2 deletions

diff --git a/roff_int.h b/roff_int.h
index 63da38df..e0700a74 100644
--- a/roff_int.h
+++ b/roff_int.h
@@ -1,7 +1,7 @@
-/*	$Id$	*/
+/* $OpenBSD: roff_int.h,v 1.16 2019/01/05 00:36:46 schwarze Exp $	*/
 /*
+ * Copyright (c) 2013-2015, 2017-2020 Ingo Schwarze <schwarze@openbsd.org>
  * Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
- * Copyright (c) 2013-2015, 2017-2019 Ingo Schwarze <schwarze@openbsd.org>
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -59,6 +59,7 @@ struct	roff_man {
 	enum roff_sec	  lastsec; /* Last section seen. */
 	enum roff_sec	  lastnamed; /* Last standard section seen. */
 	enum roff_next	  next;    /* Where to put the next node. */
+	char		  filesec; /* Section digit in the file name. */
 };