basic filter support

lib/filters/genericnode.js

@@ -0,0 +1,32 @@
+define(["filters/nodefilter"], function (nodefilter) {
+  return function (name, key, value, f) {
+    function run(d) {
+      var o = dictGet(d, key.slice(0))
+
+      if (f)
+        o = f(o)
+
+      return o === value
+    }
+
+    function setRefresh() {
+    }
+
+    function render(el) {
+      var label = document.createElement("label")
+      label.textContent = name + " "
+
+      var strong = document.createElement("strong")
+      strong.textContent = value
+
+      label.appendChild(strong)
+
+      el.appendChild(label)
+    }
+
+    return { run: nodefilter(run),
+             setRefresh: setRefresh,
+             render: render
+           }
+  }
+})