From 6a2c95237d81ad78d02f1960b47d89a4fc47efa8 Mon Sep 17 00:00:00 2001
From: Ken T Takusagawa <kenta@mit.edu>
Date: Mon, 2 May 2016 21:55:59 -0400
Subject: [PATCH] copy of no-parents, to verify that the FEN filenames match
 the position being evaluated.

---
 verify-filenames.pl | 77 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 77 insertions(+)
 create mode 100644 verify-filenames.pl

diff --git a/verify-filenames.pl b/verify-filenames.pl
new file mode 100644
index 0000000..d23db88
--- /dev/null
+++ b/verify-filenames.pl
@@ -0,0 +1,77 @@
+#! perl -wl
+# Find nodes that were specified as part of an opening book, and not found by calculation.
+use strict;
+die unless defined(my$dir=$ARGV[0]);
+die unless -d $dir;
+my@logs;
+for(<$dir/*.log>){
+    push @logs,$_;
+}
+my%seen;
+my%parent;
+my%store_moves;
+my%store_fen;
+for(my$i=0;$i<@logs;++$i){
+    my$fn=$logs[$i];
+    my$canonical=&make_canonical($fn);
+    #print"$i $canonical";
+    if(defined$seen{canonical}){
+        print STDERR "duplicate $fn $seen{$fn}";
+        next;
+    }
+    $seen{$canonical}=$fn;
+    open FI,$fn or die "cannot open $fn";
+    my$moves;
+    die if defined$moves;  #assuming undefined per scope
+
+    while(<FI>){
+        chomp;
+        $moves=$1 if /^position startpos moves\s*(.*)/;
+    }
+    close FI;
+    die unless defined($moves);
+    $moves=~s/\s+$//;
+    $store_moves{$canonical}=$moves;
+    $store_fen{$moves}=$canonical;
+}
+for my$fn(@logs){
+    my$canonical=&make_canonical($fn);
+    open FI,"$dir/$canonical" or die;
+    my$bestmove;
+    die if defined($bestmove);
+    while(<FI>){
+        next if /bestmove\s+\(none\)/;
+        $bestmove=$1 if /bestmove\s+(\S+)/;
+    }
+    close FI;
+    unless(defined$bestmove){
+        print "skipping $canonical";
+    }else{
+        die unless defined(my$moves=$store_moves{$canonical});
+        my$query="$moves $bestmove";
+        $query =~ s/^ //;
+        my$child=$store_fen{"$query"};
+        if($child){
+            $parent{$child}.=" $child";
+        } else {
+            $child=`perl moves-to-fen.pl --fen $query`;
+            chomp$child;
+            die unless $child=~/^fen (\S+)$/;
+            $child=$1;
+            #print "Cannot find '$query'";
+        }
+    }
+}
+for my$fn(sort@logs){
+    my$canonical=&make_canonical($fn);
+    die unless defined($store_moves{$canonical});
+    unless(defined$parent{$canonical}){
+        print"$store_moves{$canonical} = $canonical";
+    }
+}
+sub make_canonical{
+    my$canonical=shift;
+    $canonical=~s/\.\d+\.log//;
+    $canonical=~s!.*/!!;
+    $canonical
+}