Github user mengxr commented on the pull request:
https://github.com/apache/spark/pull/11989#issuecomment-209008233
@yongtang Sorry that I just found this was merged. I think it might be
better to use `Int.parseInt` and `parseDouble` instead of regexes, which is
less robust. For example, what if I entered `1e-2`? Could you create a new JIRA
and send a follow-up PR? Thanks!
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