From 7dd670bb3cc80a06037265c0b6a07cc3047260db Mon Sep 17 00:00:00 2001
From: Ingo Schwarze <schwarze@openbsd.org>
Date: Wed, 25 Dec 2013 22:45:33 +0000
Subject: Parse and ignore the roff(7) escape sequences \d (move half line
 down) und \u (move half line up).  Found by bentley@ in some DocBook crap.

---
 mandoc.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

(limited to 'mandoc.c')

diff --git a/mandoc.c b/mandoc.c
index 80a20651..da953214 100644
--- a/mandoc.c
+++ b/mandoc.c
@@ -1,4 +1,4 @@
-/*	$Id: mandoc.c,v 1.71 2013/12/25 00:50:05 schwarze Exp $ */
+/*	$Id: mandoc.c,v 1.72 2013/12/25 22:45:33 schwarze Exp $ */
 /*
  * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2011, 2012, 2013 Ingo Schwarze <schwarze@openbsd.org>
@@ -101,6 +101,14 @@ mandoc_escape(const char const **end, const char const **start, int *sz)
 		term = '\'';
 		break;
 
+	/*
+	 * Escapes taking no arguments at all.
+	 */
+	case ('d'):
+		/* FALLTHROUGH */
+	case ('u'):
+		return(ESCAPE_IGNORE);
+
 	/*
 	 * The \z escape is supposed to output the following
 	 * character without advancing the cursor position.  
-- 
cgit v1.2.3-56-ge451