Add support for array of tables

Fixes #9

lib/compiler.js

@@ -62,7 +62,8 @@ function compile(nodes) {
       genError("Cannot redefine existing table '" + path + "'.", line, column);
     }
     assignedPaths.push(path);
-    createContext(data, path, {}, true);
+    context = deepRef(data, path, {});
+    currentPath = path;
   }
 
   function addTableArray(node) {
@@ -71,7 +72,8 @@ function compile(nodes) {
     var column = node.column;
 
     if (assignedPaths.indexOf(path) === -1) assignedPaths.push(path);
-    createContext(data, path, [], true);
+    context = deepRef(data, path, []);
+    currentPath = path;
 
     if (context instanceof Array) {
       var newObj = {};
@@ -81,9 +83,10 @@ function compile(nodes) {
   }
 
   // Given a path 'a.b.c', create (as necessary) `start.a`,
-  // `start.a.b`, and `start.a.b.c`, assigning `value` to `start.a.b.c`
-  // If `setPath` is true, sets `context` to `value`.
-  function createContext(start, path, value, setContext) {
+  // `start.a.b`, and `start.a.b.c`, assigning `value` to `start.a.b.c`.
+  // If `a` or `b` are arrays and have items in them, the last item in the
+  // array is used as the context for the next sub-path.
+  function deepRef(start, path, value) {
     var key;
     var keys = path.split('.');
     var ctx = start;
@@ -99,12 +102,11 @@ function compile(nodes) {
       }
 
       ctx = ctx[key];
+      if (ctx instanceof Array && ctx.length && i < keys.length - 1)
+        ctx = ctx[ctx.length - 1];
     }
 
-    if (setContext) {
-      context = ctx;
-      currentPath = path;
-    }
+    return ctx;
   }
 
   function reduceArrayWithTypeChecking(array) {