From 5fbf19e12b717ae047f81ce904cb218f5e4fe081 Mon Sep 17 00:00:00 2001
From: "Steinar H. Gunderson" <sgunderson@bigfoot.com>
Date: Mon, 15 Dec 2014 00:21:48 +0100
Subject: [PATCH] Mark moves that arise only due to transpositions in blue.

---
 www/css/remoteglot.css | 3 +++
 www/js/book.js         | 4 ++++
 www/opening-stats.pl   | 8 +++++++-
 3 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/www/css/remoteglot.css b/www/css/remoteglot.css
index 110f5c8..a07fb48 100644
--- a/www/css/remoteglot.css
+++ b/www/css/remoteglot.css
@@ -194,3 +194,6 @@ a.move:hover {
 .totals {
 	background: rgb(90%,90%,90%);
 }
+.transponly {
+	background: rgb(90%,90%,100%);
+}
diff --git a/www/js/book.js b/www/js/book.js
index 854d6ad..36a9a26 100644
--- a/www/js/book.js
+++ b/www/js/book.js
@@ -157,6 +157,7 @@ var show_lines = function(data, game) {
 	}
 
 	var lines = [];
+	var transpose_only = [];
 	for (var i = 0; i < moves.length; ++i) {
 		var move = moves[i];
 		var line = [];
@@ -166,6 +167,7 @@ var show_lines = function(data, game) {
 		var black = parseInt(move['black']);
 
 		line.push(move['move']);  // Move.
+		transpose_only.push(move['transpose_only']);
 		var num = white + draw + black;
 		line.push(num);  // N.
 		line.push(num / total_num);  // %.
@@ -214,6 +216,8 @@ var show_lines = function(data, game) {
 
 		if (line[0] === undefined) {
 			$(tr).addClass("totals");
+		} else if (transpose_only[i]) {
+			$(tr).addClass("transponly");
 		}
 
 		for (var j = 0; j < line.length; ++j) {
diff --git a/www/opening-stats.pl b/www/opening-stats.pl
index e809088..3fb8946 100755
--- a/www/opening-stats.pl
+++ b/www/opening-stats.pl
@@ -55,6 +55,12 @@ for my $move (@{$root_aux_data->{'moves'}}) {
 	my $json_pos;
 	if ($includetransp) {
 		($json_pos, undef) = get_json_move($np, undef, $chld_in, $chld_out);
+
+		# See if this move exists only due to transpositions.
+		my ($alt_json_pos, undef) = get_json_move($np, $root_aux_data->{'pos_hash'}, $chld_in, $chld_out);
+		if (!defined($alt_json_pos)) {
+			$json_pos->{'transpose_only'} = 1;
+		}
 	} else {
 		($json_pos, undef) = get_json_move($np, $root_aux_data->{'pos_hash'}, $chld_in, $chld_out);
 	}
@@ -124,7 +130,7 @@ sub get_json_move {
 	chomp (my $line = <$chld_out>);
 	if ($line eq '-') {
 		warn "Missing pos '" . $pos->fen . "' " . $filter_prev_pos_hash;
-		return ({}, {});
+		return (undef, undef);
 	}
 
 	my ($white, $draw, $black, $opening_num, $white_sum_elo, $black_sum_elo, $num_elo, $timestamp, $pgn_file_number, $pgn_start_position, @moves) = split / /, $line;
-- 
2.39.2