Mega Code Archive
A nested subroutine
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#!/usr/local/bin/perl
($wordcount, $charcount) = &getcounts(3);
print ("Totals for three lines: ");
print ("$wordcount words, $charcount characters\n");
sub getcounts {
my ($numlines) = @_;
my ($charpattern, $wordpattern);
my ($charcount, $wordcount);
my ($line, $linecount);
my (@retval);
$charpattern = "";
$wordpattern = "\\s+";
$linecount = $charcount = $wordcount = 0;
while (1) {
$line = <STDIN>;
last if ($line eq "");
$linecount++;
$charcount += &count($line, $charpattern);
$line =~ s/^\s+|\s+$//g;
$wordcount += &count($line, $wordpattern);
last if ($linecount == $numlines);
};
@retval = ($wordcount, $charcount);
}
sub count {
my ($line, $pattern) = @_;
my ($count);
if ($pattern eq "") {
@items = split (//, $line);
} else {
@items = split (/$pattern/, $line);
}
$count = @items;
}
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