===================================================================
RCS file: /cvs/docbook2mdoc/docbook2mdoc.c,v
retrieving revision 1.131
retrieving revision 1.132
diff -u -p -r1.131 -r1.132
--- docbook2mdoc/docbook2mdoc.c	2019/04/16 21:21:27	1.131
+++ docbook2mdoc/docbook2mdoc.c	2019/04/21 14:48:11	1.132
@@ -1,4 +1,4 @@
-/* $Id: docbook2mdoc.c,v 1.131 2019/04/16 21:21:27 schwarze Exp $ */
+/* $Id: docbook2mdoc.c,v 1.132 2019/04/21 14:48:11 schwarze Exp $ */
 /*
  * Copyright (c) 2014 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2019 Ingo Schwarze <schwarze@openbsd.org>
@@ -315,20 +315,6 @@ pnode_printciterefentry(struct format *f, struct pnode
 	pnode_unlinksub(n);
 }
 
-static void
-pnode_printfuncdef(struct format *f, struct pnode *n)
-{
-	struct pnode	*nc;
-
-	nc = TAILQ_FIRST(&n->childq);
-	if (nc != NULL && nc->node == NODE_TEXT) {
-		macro_argline(f, "Ft", nc->b);
-		pnode_unlink(nc);
-	}
-	macro_nodeline(f, "Fo", n, ARG_SINGLE);
-	pnode_unlinksub(n);
-}
-
 /*
  * The <mml:mfenced> node is a little peculiar.
  * First, it can have arbitrary open and closing tokens, which default
@@ -389,23 +375,65 @@ pnode_printmath(struct format *f, struct pnode *n)
 static void
 pnode_printfuncprototype(struct format *f, struct pnode *n)
 {
-	struct pnode	*nc, *fdef;
+	struct pnode	*fdef, *ftype, *nc, *nn;
 
-	TAILQ_FOREACH(fdef, &n->childq, child)
-		if (fdef->node == NODE_FUNCDEF)
+	/*
+	 * Extract <funcdef> child and ignore <void> child.
+	 * Leave other children in place, to be treated as parameters.
+	 */
+
+	fdef = NULL;
+	TAILQ_FOREACH_SAFE(nc, &n->childq, child, nn) {
+		switch (nc->node) {
+		case NODE_FUNCDEF:
+			if (fdef == NULL) {
+				fdef = nc;
+				TAILQ_REMOVE(&n->childq, nc, child);
+				nc->parent = NULL;
+			}
 			break;
+		case NODE_VOID:
+			pnode_unlink(nc);
+			break;
+		default:
+			break;
+		}
+	}
 
+	/*
+	 * If no children are left, the function is void; use .Fn.
+	 * Otherwise, use .Fo.
+	 */
+
+	nc = TAILQ_FIRST(&n->childq);
 	if (fdef != NULL) {
-		pnode_printfuncdef(f, fdef);
+		ftype = TAILQ_FIRST(&fdef->childq);
+		if (ftype != NULL && ftype->node == NODE_TEXT) {
+			macro_argline(f, "Ft", ftype->b);
+			pnode_unlink(ftype);
+		}
+		if (nc == NULL) {
+			macro_open(f, "Fn");
+			macro_addnode(f, fdef, ARG_SPACE | ARG_SINGLE);
+			macro_addarg(f, "void", ARG_SPACE);
+			macro_close(f);
+		} else
+			macro_nodeline(f, "Fo", fdef, ARG_SINGLE);
 		pnode_unlink(fdef);
-	} else
+	} else if (nc == NULL)
+		macro_line(f, "Fn UNKNOWN void");
+	else
 		macro_line(f, "Fo UNKNOWN");
 
-	TAILQ_FOREACH(nc, &n->childq, child)
-		macro_nodeline(f, "Fa", nc, ARG_SINGLE);
+	if (nc == NULL)
+		return;
 
+	while (nc != NULL) {
+		macro_nodeline(f, "Fa", nc, ARG_SINGLE);
+		pnode_unlink(nc);
+		nc = TAILQ_FIRST(&n->childq);
+	}
 	macro_line(f, "Fc");
-	pnode_unlinksub(n);
 }
 
 /*
@@ -1340,6 +1368,9 @@ pnode_print(struct format *f, struct pnode *n)
 		break;
 	case NODE_VARNAME:
 		macro_open(f, "Va");
+		break;
+	case NODE_VOID:
+		print_text(f, "void", ARG_SPACE);
 		break;
 	case NODE_XREF:
 		pnode_printxref(f, n);