Github user ouyangxiaochen commented on the issue: https://github.com/apache/spark/pull/17628 @srowen Do u mean that my regex can not match all variable name? because scala's variable name can be consisted with letter|digital|_|$? I serached the instances of `var foo="string" `with new regex `\s*var [a-z|A-Z|$|_]* = "*"` and found 33 of them. Maybe really there are no other instances.
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