Add some opening book stuff that is still under development, and really should be...

[remoteglot] / book / parse-pgn.pl

diff --git a/book/parse-pgn.pl b/book/parse-pgn.pl
new file mode 100755 (executable)
index 0000000..1668b1e
--- /dev/null
+++ b/book/parse-pgn.pl
@@ -0,0 +1,66 @@
+#! /usr/bin/perl
+use Chess::PGN::Parse;
+use Data::Dumper;
+use strict;
+use warnings;
+use DBI;
+use DBD::Pg;
+require 'Position.pm';
+require 'Engine.pm';
+require 'ECO.pm';
+
+my $DRYRUN = 1;
+my $TEXTOUT = 0;
+my $BINOUT = 1;
+
+ECO::init();
+
+my $dbh = DBI->connect("dbi:Pg:dbname=ficsopening", "sesse", undef);
+$dbh->do("COPY opening FROM STDIN") unless $DRYRUN;
+
+my ($filename, $my_num, $tot_num) = @ARGV;
+
+my $pgn = Chess::PGN::Parse->new($filename)
+       or die "can't open $filename\n";
+my $game_num = 0;
+while ($pgn->read_game()) {
+       next unless ($game_num++ % $tot_num == $my_num);
+       my $tags = $pgn->tags();
+#      next unless $tags->{'WhiteElo'} >= 2000;
+#      next unless $tags->{'BlackElo'} >= 2000;
+       $pgn->quick_parse_game;
+       my $pos = Position->start_pos($pgn->white, $pgn->black);
+       my $result = $pgn->result;
+       my $binresult;
+       if ($result eq '1-0') {
+               $binresult = chr(0);
+       } elsif ($result eq '1/2-1/2') {
+               $binresult = chr(1);
+       } elsif ($result eq '0-1') {
+               $binresult = chr(2);
+       } else {
+               die "Unknown result $result";
+       }
+       my $binwhiteelo = pack('l', $tags->{'WhiteElo'});
+       my $binblackelo = pack('l', $tags->{'BlackElo'});
+       my $moves = $pgn->moves;
+       my $opening = ECO::get_opening_num($pos);
+#      print STDERR $pgn->white, " ", $pgn->black, "\n";
+       for (my $i = 0; $i + 1 < scalar @$moves; ++$i) {
+               my ($from_row, $from_col, $to_row, $to_col, $promo) = $pos->parse_pretty_move($moves->[$i]);
+               my $next_move = $moves->[$i];
+               my $bpfen = $pos->bitpacked_fen;
+               my $bpfen_q = $dbh->quote($bpfen, { pg_type => DBD::Pg::PG_BYTEA });
+               my $fen = $pos->fen;
+               $opening = ECO::get_opening_num($pos) // $opening;
+               print "$fen $next_move $result $opening\n" if $TEXTOUT;
+               if ($BINOUT) {
+                       print chr(length($bpfen) + length($next_move)) . $bpfen . $next_move;
+                       print $binresult . $binwhiteelo . $binblackelo;
+                       print pack('l', $opening);
+               }
+               $dbh->pg_putcopydata("$bpfen_q\t$next_move\t$result\n") unless $DRYRUN;
+               $pos = $pos->make_move($from_row, $from_col, $to_row, $to_col, $promo, $moves->[$i]);
+       }
+}
+$dbh->pg_putcopyend unless $DRYRUN;