[jruby-joni] 05/31: fix invalid backref

[Hideki Yamane]

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henrich pushed a commit to branch debian/sid
in repository jruby-joni.

commit 40796a494907814201f42d79ece33d295c5749b8
Author: Marcin Mielzynski <lopx at gazeta.pl>
Date:   Mon Jan 29 22:05:42 2018 +0100

    fix invalid backref
---
 src/org/joni/Analyser.java | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/org/joni/Analyser.java b/src/org/joni/Analyser.java
index 1da0c64..467fc46 100644
--- a/src/org/joni/Analyser.java
+++ b/src/org/joni/Analyser.java
@@ -1956,6 +1956,7 @@ final class Analyser extends Parser {
                         newValueException(ERR_NUMBERED_BACKREF_OR_CALL_NOT_ALLOWED);
                     }
                 }
+                if (en.regNum > env.numMem) newValueException(ERR_INVALID_BACKREF);
                 setupTree(en.target, state);
                 break;
 

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