===================================================================
RCS file: /cvs/docbook2mdoc/parse.c,v
retrieving revision 1.9
retrieving revision 1.10
diff -u -p -r1.9 -r1.10
--- docbook2mdoc/parse.c	2019/04/02 15:53:02	1.9
+++ docbook2mdoc/parse.c	2019/04/03 11:23:48	1.10
@@ -1,4 +1,4 @@
-/* $Id: parse.c,v 1.9 2019/04/02 15:53:02 schwarze Exp $ */
+/* $Id: parse.c,v 1.10 2019/04/03 11:23:48 schwarze Exp $ */
 /*
  * Copyright (c) 2014 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2019 Ingo Schwarze <schwarze@openbsd.org>
@@ -692,14 +692,16 @@ parse_file(struct parse *p, int fd, const char *fname)
 			/* Parse an attribute value. */
 
 			if (in_arg) {
-				if (in_quotes == 0 && b[pend] == '"') {
-					in_quotes = 1;
+				if (in_quotes == 0 &&
+				    (b[pend] == '\'' || b[pend] == '"')) {
+					in_quotes = b[pend] == '"' ? 2 : 1;
 					p->ncol++;
 					pend++;
 					continue;
 				}
 				if (advance(p, b, rlen, &pend,
-				    in_quotes ? "\"" : " >") && rsz > 0)
+				    in_quotes == 2 ? "\"" :
+				    in_quotes == 1 ? "'" : " >") && rsz > 0)
 					break;
 				in_arg = in_quotes = elem_end = 0;
 				if (b[pend] == '>') {