From e5b395c743b2bac472ad457fa3dd62a5956261c6 Mon Sep 17 00:00:00 2001
From: Kristaps Dzonsons <kristaps@bsd.lv>
Date: Sun, 29 Aug 2010 11:29:51 +0000
Subject: [PATCH] Allow `.xx\}' where xx is a macro (e.g., `.br\}') to close
 scope.  This is experimental and hasn't been rigorously tested.  It's only
 implemented in -mdoc for the time being.  This is absolutely required for
 pod2man.  It does, however, make the pod2man preamble be processed in full.

---
 mdoc.c |  9 ++++++---
 roff.c | 13 ++++++++++---
 2 files changed, 16 insertions(+), 6 deletions(-)

diff --git a/mdoc.c b/mdoc.c
index f8b09f7a..bee01503 100644
--- a/mdoc.c
+++ b/mdoc.c
@@ -1,4 +1,4 @@
-/*	$Id: mdoc.c,v 1.163 2010/08/20 01:02:07 schwarze Exp $ */
+/*	$Id: mdoc.c,v 1.164 2010/08/29 11:29:51 kristaps Exp $ */
 /*
  * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2010 Ingo Schwarze <schwarze@openbsd.org>
@@ -758,11 +758,14 @@ mdoc_pmacro(struct mdoc *m, int ln, char *buf, int offs)
 
 	/* 
 	 * Copy the first word into a nil-terminated buffer.
-	 * Stop copying when a tab, space, or eoln is encountered.
+	 * Stop copying when a tab, space, backslash, or eoln is encountered.
 	 */
 
 	j = 0;
-	while (j < 4 && '\0' != buf[i] && ' ' != buf[i] && '\t' != buf[i])
+	while (j < 4 && '\0' != buf[i] && 
+			' ' != buf[i] && 
+			'\t' != buf[i] && 
+			'\\' != buf[i])
 		mac[j++] = buf[i++];
 	mac[j] = '\0';
 
diff --git a/roff.c b/roff.c
index b111ad23..ece3dfd2 100644
--- a/roff.c
+++ b/roff.c
@@ -1,4 +1,4 @@
-/*	$Id: roff.c,v 1.99 2010/08/24 12:48:43 kristaps Exp $ */
+/*	$Id: roff.c,v 1.100 2010/08/29 11:29:51 kristaps Exp $ */
 /*
  * Copyright (c) 2010 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2010 Ingo Schwarze <schwarze@openbsd.org>
@@ -59,7 +59,7 @@ enum	rofft {
 	ROFF_rm,
 	ROFF_tr,
 	ROFF_cblock,
-	ROFF_ccond,
+	ROFF_ccond, /* FIXME: remove this. */
 	ROFF_nr,
 	ROFF_MAX
 };
@@ -764,8 +764,13 @@ roff_cond_sub(ROFF_ARGS)
 	if (l != r->last)
 		return(ROFFRULE_DENY == rr ? ROFF_IGN : ROFF_CONT);
 
-	if (ROFF_MAX == (t = roff_parse(*bufp, &pos)))
+	if (ROFF_MAX == (t = roff_parse(*bufp, &pos))) {
+		if ('\\' == (*bufp)[pos] && '}' == (*bufp)[pos + 1])
+			return(roff_ccond
+				(r, ROFF_ccond, bufp, szp, 
+				 ln, pos, pos + 2, offs));
 		return(ROFFRULE_DENY == rr ? ROFF_IGN : ROFF_CONT);
+	}
 
 	/*
 	 * A denied conditional must evaluate its children if and only
@@ -797,6 +802,8 @@ roff_cond_text(ROFF_ARGS)
 	 * scope permits us to do so.
 	 */
 
+	/* FIXME: use roff_ccond? */
+
 	st = &(*bufp)[pos];
 	if (NULL == (ep = strstr(st, "\\}"))) {
 		roffnode_cleanscope(r);
-- 
2.47.1