From d328901799c25c822001d9853651daf5b2a64b2f Mon Sep 17 00:00:00 2001
From: Matthias Koefferlein <matthias@koefferlein.de>
Date: Sun, 29 Mar 2020 21:01:19 +0200
Subject: [PATCH] DEF reader fix: TAPER has to disable NONDEFAULTRULE for the
 segment

---
 .../streamers/lefdef/db_plugin/dbDEFImporter.cc        | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/src/plugins/streamers/lefdef/db_plugin/dbDEFImporter.cc b/src/plugins/streamers/lefdef/db_plugin/dbDEFImporter.cc
index 5ee27d495..b5efc29b8 100644
--- a/src/plugins/streamers/lefdef/db_plugin/dbDEFImporter.cc
+++ b/src/plugins/streamers/lefdef/db_plugin/dbDEFImporter.cc
@@ -475,12 +475,13 @@ DEFImporter::do_read (db::Layout &layout)
               take ();
             }
 
-            taperrule.clear ();
-
             do {
 
               std::string ln = get ();
 
+              taperrule.clear ();
+              const std::string *rulename = 0;
+
               db::Coord w = 0;
               if (specialnets) {
                 w = db::coord_traits<db::Coord>::rounded (get_double () * scale);
@@ -507,8 +508,10 @@ DEFImporter::do_read (db::Layout &layout)
                 while (true) {
                   if (test ("TAPER")) {
                     taperrule.clear ();
+                    rulename = &taperrule;
                   } else if (test ("TAPERRULE")) {
                     taperrule = get ();
+                    rulename = &taperrule;
                   } else if (test ("STYLE")) {
                     sn = get_long ();
                   } else {
@@ -520,8 +523,7 @@ DEFImporter::do_read (db::Layout &layout)
 
               if (! specialnets) {
 
-                const std::string *rulename = &taperrule;
-                if (rulename->empty ()) {
+                if (! rulename) {
                   rulename = &nondefaultrule;
                 }