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#!/usr/bin/perl
#
# Perfect Minimal Hash Generator written in Perl, which produces
# C output.
#
require 'phash.ph';
#
# Main program
#
sub main() {
my $n;
my %data;
my @hashinfo;
my $x, $i;
%data = read_input();
@hashinfo = gen_perfect_hash(\%data);
if (!defined(@hashinfo)) {
die "$0: no hash found\n";
}
verify_hash_table(\%data, \@hashinfo);
($n, $sv, $f1, $f2, $g) = @hashinfo;
print "static int HASHNAME_fg1[$n] =\n";
print "{\n";
for ($i = 0; $i < $n; $i++) {
print "\t", ${$g}[${$f1}[$i]], "\n";
}
print "};\n\n";
print "static int HASHNAME_fg2[$n] =\n";
print "{\n";
for ($i = 0; $i < $n; $i++) {
print "\t", ${$g}[${$f2}[$i]], "\n";
}
print "};\n\n";
print "struct p_hash HASHNAME =\n";
print "{\n";
print "\t$n\n";
print "\t$sv\n";
print "\tHASHNAME_fg1,\n";
print "\tHASHNAME_fg2,\n";
print "};\n";
}
main();
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