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#!/usr/local/bin/perl
$total = 0;
while (1) {
$linetotal = &get_total;
last if ($linetotal eq "done");
print ("Total for this line: $linetotal\n");
$total += $linetotal;
}
print ("Total for all lines: $total\n");
sub get_total {
my ($total, $inputline, @subwords);
my ($index, $retval);
$total = 0;
$inputline = <STDIN>;
if ($inputline eq "") {
return ("done");
}
$inputline =~ s/^\s+|\s*\n$//g;
@subwords = split(/\s+/, $inputline);
$index = 0;
while ($subwords[$index] ne "") {
$total += $subwords[$index++];
}
$retval = $total;
}
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