sgf2gtp.pl

   1 #!/usr/bin/perl -l
   2 # This is a naive Perl script that will convert SGF files to GTP
   3 # format so that you can feed them to Pachi, insert genmove at
   4 # the right places etc. Might not work on obscure SGF files,
   5 # and of course there must be no variations.
   6
   7 use warnings;
   8
   9 local $/ = undef; my $sgf = <>;
  10 my $size = ($sgf =~ /SZ\[(\d+)\]/)[0];
  11 $sgf =~ s/\bC\[.*?\]//gs; # no comments
  12 #$sgf =~ s/\).*//gs; # cut at end of principal branch
  13
  14 print "boardsize " . $size;
  15 print "clear_board";
  16 print "komi " . ($sgf =~ /KM\[([\d.]+)\]/)[0];
  17
  18 my $abcd = "abcdefghijklmnopqrstuvwxyz";
  19
  20 my @m = split /;/, $sgf;
  21 foreach (@m) {
  22         /^([BW])\[\]/ and print "play $1 pass";
  23         /^([BW])\[(\w\w)\]/ or next;
  24         my ($color, $coord) = ($1, $2);
  25         my ($x, $y) = split //, $coord;
  26         ($x ge 'i') and $x++;
  27         $y = $size - index($abcd, $y);
  28         print "play $color $x$y";
  29 }