===================================================================
RCS file: /cvs/pod2mdoc/pod2mdoc.c,v
retrieving revision 1.25
retrieving revision 1.28
diff -u -p -r1.25 -r1.28
--- pod2mdoc/pod2mdoc.c	2014/07/11 09:05:03	1.25
+++ pod2mdoc/pod2mdoc.c	2014/07/11 10:31:28	1.28
@@ -1,4 +1,4 @@
-/*	$Id: pod2mdoc.c,v 1.25 2014/07/11 09:05:03 schwarze Exp $ */
+/*	$Id: pod2mdoc.c,v 1.28 2014/07/11 10:31:28 schwarze Exp $ */
 /*
  * Copyright (c) 2014 Kristaps Dzonsons <kristaps@bsd.lv>
  *
@@ -181,7 +181,6 @@ trylink(const char *buf, size_t *start, size_t end, si
 {
 	size_t		 linkstart, realend, linkend, 
 			 i, j, textsz, stack;
-	const char	*text;
 
 	/* 
 	 * Scan to the start of the terminus. 
@@ -218,7 +217,6 @@ trylink(const char *buf, size_t *start, size_t end, si
 	linkend = dsz > 1 ? realend - 1 : realend;
 
 	/* Re-scan to see if we have a title or section. */
-	text = &buf[*start];
 	for (textsz = *start; textsz < linkend; textsz++)
 		if ('|' == buf[textsz] || '/' == buf[textsz])
 			break;
@@ -511,7 +509,12 @@ formatcode(struct state *st, const char *buf, size_t *
 					printf("Ar ");
 				break;
 			} 
-			printf("Sy ");
+			if (0 == strncmp(buf + *start, "NULL", 4) &&
+			    ('=' == buf[*start + 4] ||
+			     '>' == buf[*start + 4]))
+				printf("Dv ");
+			else
+				printf("Sy ");
 			break;
 		case (FMT_CODE):
 			printf("Qo Li ");
@@ -1269,8 +1272,6 @@ readfile(const struct args *args, const char *fname)
 	struct tm	*tm;
 	time_t		 ttm;
 	struct stat 	 st;
-
-	assert(NULL != fname);
 
 	fd = 0 != strcmp("-", fname) ? 
 		open(fname, O_RDONLY, 0) : STDIN_FILENO;