From e0343256222a5ca4898bd361d21fa4ad133019ae Mon Sep 17 00:00:00 2001
From: Ulya Trofimovich <skvadrik@gmail.com>
Date: Fri, 7 Apr 2017 17:00:14 +0100
Subject: [PATCH] Tag histories in commands must be addressed by absolute
 value.

---
 re2c/src/dfa/closure.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/re2c/src/dfa/closure.cc b/re2c/src/dfa/closure.cc
index a93a33ee..488c0dc6 100644
--- a/re2c/src/dfa/closure.cc
+++ b/re2c/src/dfa/closure.cc
@@ -264,7 +264,7 @@ tcmd_t *generate_versions(closure_t &clos, const std::vector<Tag> &tags,
 			for (p = cmd; p; p = p->next) {
 				if (p->lhs == abs(m) && p->rhs == u && p->pred == h) break;
 			}
-			if (!p) cmd = tcpool.make_tcmd(cmd, abs(m), u, h);
+			if (!p) cmd = tcpool.make_tcmd(cmd, abs(m), u, abs(h));
 		}
 	}
 
-- 
2.40.0