From be56e24d9ac6100408caa9be2248bbdfba4c97f2 Mon Sep 17 00:00:00 2001
From: Raul Ochoa <rochoaf@gmail.com>
Date: Tue, 26 Apr 2016 18:19:53 +0200
Subject: [PATCH] Avoid using dot notation to allow complex keys, e.g., 
 mapnik::geometry_type

---
 lib/carto/tree/filterset.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/carto/tree/filterset.js b/lib/carto/tree/filterset.js
index 7e2b82e..563bf3d 100644
--- a/lib/carto/tree/filterset.js
+++ b/lib/carto/tree/filterset.js
@@ -92,7 +92,7 @@ tree.Filterset.prototype.toJS = function(env) {
       val = filter._val.toString(true);
     }
     var attrs = "data";
-    return attrs + "." + filter.key.value  + " " + op + " " + (val.is === 'string' ? "'" + val.toString().replace(/'/g, "\\'") + "'" : val);
+    return attrs + "['" + filter.key.value  + "'] " + op + " " + (val.is === 'string' ? "'" + val.toString().replace(/'/g, "\\'") + "'" : val);
   }).join(' && ');
 };