In reading in a file of space separated columns of numbers
and stuffing them into an array, I used:
while( my $line = <$FH> )
{ my @arr = split /\s+/, $line;
push @primes_array, @arr;
}
but kept getting empty array entries until I switched to:
while( <$FH> )
{ my @arr = split;
push @primes_array, @arr;
}
perldoc -f split says:
If EXPR is omitted, splits the $_ string.
If PATTERN is also omitted, splits on whitespace
(after skipping any leading whitespace).
My question is what RE do I need to pass to split to get
the same return from split /$RE/, $line;
as I get from the split against $_.
Thanks,
Mike
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