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-rw-r--r--test/regexp/hard5
1 files changed, 5 insertions, 0 deletions
diff --git a/test/regexp/hard b/test/regexp/hard
index 40c6d2d..ddb4cfd 100644
--- a/test/regexp/hard
+++ b/test/regexp/hard
@@ -5,3 +5,8 @@ aaabbbb
a0b
aa0aaa
b0aaa
+=>(\d{1,3}\.){3}\d{1,3}
+1.2.3.4
+1.22.333.44
+1.2.3
+1..2.3