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Re^2: Angle operator [updated]by jo37 (Deacon) |
on Oct 20, 2021 at 16:58 UTC ( [id://11137812]=note: print w/replies, xml ) | Need Help?? |
At first sight this behaviour looks very strange. If there was any data available via <>, the command x <> would consume all of it and the loop would not be entered. I've played a bit with this setup and are able to reproduce such a thing. If <> is exhausted and the final returned undef is ignored, the next call to <> will read from STDIN, even if file names were provided via @ARGV. This behaviour is documented in I/O Operators. I guess there is some part in the script that ignores an undef return from <> or evaluates it in list context before the loop in question. And there are named files in addition to data from STDIN. Update: ...the loop would not be entered. This it not true and is not what I wanted to say. The loop is entered, but it will wait for input from STDIN. Greetings,
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