Add enum type for code formatting presets

Author: Kapil Borle

package.json

@@ -416,8 +416,8 @@
           "type":"string",
           "enum": [
             "Custom",
-            "KR-Stroustrup",
-            "KR-OTBS",
+            "KR_Stroustrup",
+            "KR_OTBS",
             "Allman"
           ],
           "default": "KR-Stroustrup",

src/settings.ts

@@ -7,8 +7,15 @@
 import vscode = require('vscode');
 import utils = require('./utils');
 
+enum CodeFormattingPreset {
+    Custom,
+    KR_Stroustrup,
+    KR_OTBS,
+    Allman
+}
+
 export interface ICodeFormattingSettings {
-    preset: string;
+    preset: CodeFormattingPreset;
     openBraceOnSameLine: boolean;
     newLineAfterOpenBrace: boolean;
     newLineAfterCloseBrace: boolean;