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