From c462999d899acf87741657ed63dff7612559ce20 Mon Sep 17 00:00:00 2001
From: Kristaps Dzonsons <kristaps@bsd.lv>
Date: Sun, 15 May 2011 15:30:33 +0000
Subject: Support groff's escape for Unicode input.  See

  http://mdocml.bsd.lv/archives/tech/0368.html

For the time being, we just throw it away.
---
 mandoc.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

(limited to 'mandoc.c')

diff --git a/mandoc.c b/mandoc.c
index 671f059a..c9290214 100644
--- a/mandoc.c
+++ b/mandoc.c
@@ -1,4 +1,4 @@
-/*	$Id: mandoc.c,v 1.51 2011/05/14 17:54:42 kristaps Exp $ */
+/*	$Id: mandoc.c,v 1.52 2011/05/15 15:30:33 kristaps Exp $ */
 /*
  * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2011 Ingo Schwarze <schwarze@openbsd.org>
@@ -125,6 +125,14 @@ mandoc_escape(const char **end, const char **start, int *sz)
 		break;
 	case ('['):
 		gly = ESCAPE_SPECIAL;
+		/*
+		 * Unicode escapes are defined in groff as \[uXXXX] to
+		 * \[u10FFFF], where the contained value must be a valid
+		 * Unicode codepoint.  Here, however, only check whether
+		 * it's not a zero-width escape.
+		 */
+		if ('u' == cp[i] && ']' != cp[i + 1])
+			gly = ESCAPE_UNICODE;
 		term = ']';
 		break;
 	case ('C'):
-- 
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