Precompile coords regex

wiki-tile.pl

@@ -14,6 +14,10 @@ use Data::Dumper;
 use feature "signatures";
 no warnings "experimental::signatures";
 
+# The below regex is a whitespace forgiving version of /^(-?\d+),(-?\d+)/, an int pair
+my $coords_regex = qr/^\s*(-?\s*\d+)\s*,\s*(-?\s*\d+)\s*$/;
+
+
 my $api_url = "https://wiki.tensor.green/w/api.php";
 my $region_template_name = "MapRegion";
 my $subregion_template_name = "MapSubregion";
@@ -160,9 +164,8 @@ foreach my $page (values %{$tile_query_results->{query}{pages}})
 	my $region = $grid->{regions}{$region_name};
 	foreach my $coords (split /;/, $content)
 	{
-		# The below regex is a whitespace forgiving version of /^(-?\d+),(-?\d+)/, an int pair
 		do { carp "Skipping bad spec: $coords"; next; }
-			unless $coords =~ /^\s*(-?\s*\d+)\s*,\s*(-?\s*\d+)\s*$/;
+			unless $coords =~ $coords_regex;
 		$region->make_tile_at($1,$2);
 	}
 }
@@ -207,7 +210,7 @@ foreach my $page (values %{$location_query_results->{query}{pages}})
 	}
 
 	# The below regex is a whitespace forgiving version of /^(-?\d+),(-?\d+)/, an int pair
-	if($parsed_template->{positional_params}[0] =~ /^\s*(-?\s*\d+)\s*,\s*(-?\s*\d+)\s*$/)
+	if($parsed_template->{positional_params}[0] =~ $coords_regex)
 	{
 		$location->make_tile_at($1,$2);
 		if($regiondir)
@@ -215,9 +218,8 @@ foreach my $page (values %{$location_query_results->{query}{pages}})
 			$location_with_context->make_tile_at($1,$2);
 			foreach my $coords (split /;/, $parsed_template->{named_params}{context_tiles})
 			{
-				# The below regex is a whitespace forgiving version of /^(-?\d+),(-?\d+)/, an int pair
 				do { carp "Skipping bad spec: $coords"; next; }
-				unless $coords =~ /^\s*(-?\s*\d+)\s*,\s*(-?\s*\d+)\s*$/;
+				unless $coords =~ $coords_regex;
 				$location_with_context->add_tile($grid->get_tile_at($1, $2));
 			}
 		}