===================================================================
RCS file: /cvs/mandoc/roff.c,v
retrieving revision 1.200
retrieving revision 1.203
diff -u -p -r1.200 -r1.203
--- mandoc/roff.c	2014/03/20 02:57:28	1.200
+++ mandoc/roff.c	2014/04/05 20:34:57	1.203
@@ -1,4 +1,4 @@
-/*	$Id: roff.c,v 1.200 2014/03/20 02:57:28 schwarze Exp $ */
+/*	$Id: roff.c,v 1.203 2014/04/05 20:34:57 schwarze Exp $ */
 /*
  * Copyright (c) 2010, 2011, 2012 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2010-2014 Ingo Schwarze <schwarze@openbsd.org>
@@ -26,6 +26,7 @@
 #include <string.h>
 
 #include "mandoc.h"
+#include "mandoc_aux.h"
 #include "libroff.h"
 #include "libmandoc.h"
 
@@ -61,6 +62,7 @@ enum	rofft {
 	ROFF_ns,
 	ROFF_ps,
 	ROFF_rm,
+	ROFF_rr,
 	ROFF_so,
 	ROFF_ta,
 	ROFF_tr,
@@ -201,6 +203,7 @@ static	enum rofferr	 roff_parsetext(char **, size_t *,
 static	enum rofferr	 roff_res(struct roff *, 
 				char **, size_t *, int, int);
 static	enum rofferr	 roff_rm(ROFF_ARGS);
+static	enum rofferr	 roff_rr(ROFF_ARGS);
 static	void		 roff_setstr(struct roff *,
 				const char *, const char *, int);
 static	void		 roff_setstrn(struct roffkv **, const char *, 
@@ -250,6 +253,7 @@ static	struct roffmac	 roffs[ROFF_MAX] = {
 	{ "ns", roff_line_ignore, NULL, NULL, 0, NULL },
 	{ "ps", roff_line_ignore, NULL, NULL, 0, NULL },
 	{ "rm", roff_rm, NULL, NULL, 0, NULL },
+	{ "rr", roff_rr, NULL, NULL, 0, NULL },
 	{ "so", roff_so, NULL, NULL, 0, NULL },
 	{ "ta", roff_line_ignore, NULL, NULL, 0, NULL },
 	{ "tr", roff_tr, NULL, NULL, 0, NULL },
@@ -655,11 +659,7 @@ roff_parsetext(char **bufp, size_t *szp, int pos, int 
 
 	/* Spring the input line trap. */
 	if (1 == roffit_lines) {
-		isz = asprintf(&p, "%s\n.%s", *bufp, roffit_macro);
-		if (-1 == isz) {
-			perror(NULL);
-			exit((int)MANDOCLEVEL_SYSERR);
-		}
+		isz = mandoc_asprintf(&p, "%s\n.%s", *bufp, roffit_macro);
 		free(*bufp);
 		*bufp = p;
 		*szp = isz + 1;
@@ -1502,6 +1502,31 @@ roff_nr(ROFF_ARGS)
 
 	roff_setreg(r, key, iv, sign);
 
+	return(ROFF_IGN);
+}
+
+static enum rofferr
+roff_rr(ROFF_ARGS)
+{
+	struct roffreg	*reg, **prev;
+	const char	*name;
+	char		*cp;
+
+	cp = *bufp + pos;
+	name = roff_getname(r, &cp, ln, pos);
+
+	prev = &r->regtab;
+	while (1) {
+		reg = *prev;
+		if (NULL == reg || !strcmp(name, reg->key.p))
+			break;
+		prev = &reg->next;
+	}
+	if (NULL != reg) {
+		*prev = reg->next;
+		free(reg->key.p);
+		free(reg);
+	}
 	return(ROFF_IGN);
 }