Personally, it makes a lot of sense. Sure if there's no need to chomp a value then it shouldn't hurt. However the function *must* be assuming the input it to be modifyied in some way otherwise you'd not pass a value to it that you expect to be modified.
sub modify {
chomp( $_[0] );
# whatever else happens, you've just potentially modified $_[0]
}
modify('fred');
# What would you expect to happen to 'fred'?
my $f ="fred\n";
modify($f);
print $f;
#fred
sub modify2 {
# Create a copy of the input
my $input = $_[0];
chomp($input);
}
modify('fred');
# works now because we're not modifying the input, but a copy of it.
my $f ="fred\n";
modify($f);
print $f;
#fred\n
Cheers! Rick
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