Github user srowen commented on a diff in the pull request:
https://github.com/apache/spark/pull/22048#discussion_r213699101
--- Diff: core/src/main/scala/org/apache/spark/util/Utils.scala ---
@@ -2794,6 +2794,27 @@ private[spark] object Utils extends Logging {
}
}
}
+
+ /**
+ * Regular expression matching full width characters
+ */
+ private lazy val fullWidthRegex = ("""[""" +
--- End diff --
Doesn't need to be lazy
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