Add null and handle empty array for language types. Closes #289

Author: HookyQR

extension.js

@@ -173,11 +173,15 @@ class Formatters {
         return ss;
       }));
 
-      this.handlers[a] = {
-        selector,
-        full: register(a, selector),
-        partial: register(a, selector, true)
-      };
+      if (selector.length) {
+        this.handlers[a] = {
+          selector,
+          full: register(a, selector),
+          partial: register(a, selector, true)
+        };
+      } else {
+        delete this.handlers[a];
+      }
     }
   }
   getFormat(doc) {

package.json

@@ -2,7 +2,7 @@
   "name": "beautify",
   "displayName": "Beautify",
   "description": "Beautify code in place for VS Code",
-  "version": "1.4.10",
+  "version": "1.4.11",
   "publisher": "HookyQR",
   "engines": {
     "vscode": "^1.22.0"
@@ -105,7 +105,8 @@
             "js": {
               "type": [
                 "object",
-                "array"
+                "array",
+                "null"
               ],
               "items": {
                 "type": "string"
@@ -138,7 +139,8 @@
             "css": {
               "type": [
                 "object",
-                "array"
+                "array",
+                "null"
               ],
               "items": {
                 "type": "string"
@@ -171,7 +173,8 @@
             "html": {
               "type": [
                 "object",
-                "array"
+                "array",
+                "null"
               ],
               "items": {
                 "type": "string"