1 files changed, 38 insertions, 0 deletions
diff --git a/gnu/usr.bin/grep/tests/backref.sh b/gnu/usr.bin/grep/tests/backref.sh
new file mode 100755
index 0000000..83f6dcc
--- /dev/null
+++ b/gnu/usr.bin/grep/tests/backref.sh
@@ -0,0 +1,38 @@
+#!/bin/sh
+# Test that backrefs are local to regex.
+#
+#
+
+: ${srcdir=.}
+
+failures=0
+
+# checking for a palindrome
+echo "radar" | ${GREP} -e '\(.\)\(.\).\2\1' > /dev/null 2>&1
+if test $? -ne 0 ; then
+        echo "backref: palindrome, test \#1 failed"
+        failures=1
+fi
+
+# hit hard with the `Bond' tests
+echo "civic" | ${GREP} -E -e '^(.?)(.?)(.?)(.?)(.?)(.?)(.?)(.?)(.?).?\9\8\7\6\5\4\3\2\1$' > /dev/null 2>&1
+if test $? -ne 0 ; then
+        echo "Options: Bond, test \#2 failed"
+        failures=1
+fi
+
+# backref are local should be error
+echo "123" | ${GREP} -e 'a\(.\)' -e 'b\1' > /dev/null 2>&1
+if test $? -ne 2 ; then
+	echo "Options: Backref not local, test \#3 failed"
+	failures=1
+fi
+
+# Pattern should faile
+echo "123" | ${GREP} -e '[' -e ']' > /dev/null 2>&1
+if test $? -ne 2 ; then
+	echo "Options: Compiled not local, test \#3 failed"
+	failures=1
+fi
+
+exit $failures