install gulp

user/themes/anissabensalah/node_modules/postcss-value-parser/lib/walk.js

@@ -0,0 +1,18 @@
+module.exports = function walk(nodes, cb, bubble) {
+    var i, max, node, result;
+
+    for (i = 0, max = nodes.length; i < max; i += 1) {
+        node = nodes[i];
+        if (!bubble) {
+            result = cb(node, i, nodes);
+        }
+
+        if (result !== false && node.type === 'function' && Array.isArray(node.nodes)) {
+            walk(node.nodes, cb, bubble);
+        }
+
+        if (bubble) {
+            cb(node, i, nodes);
+        }
+    }
+};