my @due=sort chomp (my @lines=<STDIN>);

[download]
is basically 
my @anon = chomp (my @lines=<STDIN>);
my @due=sort @anon;

[download]
It is not the same as 
chomp (my @lines=<STDIN>);
my @due=sort @lines;

[download]

In the first snippet you posted, you are sorting @lines. In the second, you are sorting the result of chomp. These are very different, as described in chomp's documentation.

In reply to Re: Unexpected chomp behavior by ikegami
in thread Unexpected chomp behavior by saintex

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