Github user mjsax commented on the pull request:
https://github.com/apache/flink/pull/796#issuecomment-109992966
The regex matches everything up to the first character that is not
'0-9a-zA-Z/.-' Thus, any non matching character is uses as cut-off (e.g. blank,
tab, @, |, ...).
I think we should remove the if-then completely. The 'cut' command does
exactly what we need and used '#' as comment only.
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