===================================================================
RCS file: /cvs/mandoc/tree.c,v
retrieving revision 1.85
retrieving revision 1.88
diff -u -p -r1.85 -r1.88
--- mandoc/tree.c	2020/01/11 16:03:42	1.85
+++ mandoc/tree.c	2020/04/07 22:56:02	1.88
@@ -1,7 +1,7 @@
-/*	$Id: tree.c,v 1.85 2020/01/11 16:03:42 schwarze Exp $ */
+/* $Id: tree.c,v 1.88 2020/04/07 22:56:02 schwarze Exp $ */
 /*
- * Copyright (c) 2008, 2009, 2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2013-2015, 2017-2020 Ingo Schwarze <schwarze@openbsd.org>
+ * Copyright (c) 2008, 2009, 2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -14,6 +14,9 @@
  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Formatting module to let mandoc(1) show
+ * a human readable representation of the syntax tree.
  */
 #include "config.h"
 
@@ -199,6 +202,16 @@ print_mdoc(const struct roff_node *n, int indent)
 			putchar(')');
 		if (n->flags & NODE_EOS)
 			putchar('.');
+		if (n->flags & NODE_ID) {
+			printf(" ID");
+			if (n->string != NULL)
+				printf("=%s", n->string);
+		}
+		if (n->flags & NODE_HREF) {
+			printf(" HREF");
+			if (n->string != NULL && (n->flags & NODE_ID) == 0)
+				printf("=%s", n->string);
+		}
 		if (n->flags & NODE_BROKEN)
 			printf(" BROKEN");
 		if (n->flags & NODE_NOFILL)
@@ -298,6 +311,11 @@ print_man(const struct roff_node *n, int indent)
 			putchar(')');
 		if (n->flags & NODE_EOS)
 			putchar('.');
+		if (n->flags & NODE_ID) {
+			printf(" ID");
+			if (n->string != NULL)
+				printf("=%s", n->string);
+		}
 		if (n->flags & NODE_NOFILL)
 			printf(" NOFILL");
 		putchar('\n');