Format + new regex

Author: RyanCavanaugh

src/compiler/core.ts

@@ -74,13 +74,13 @@ namespace ts {
     }
 
     // The global Map object. This may not be available, so we must test for it.
-    declare const Map: { new<T>(): Map<T> } | undefined;
+    declare const Map: { new <T>(): Map<T> } | undefined;
     // Internet Explorer's Map doesn't support iteration, so don't use it.
     // tslint:disable-next-line:no-in-operator
     const MapCtr = typeof Map !== "undefined" && "entries" in Map.prototype ? Map : shimMap();
 
     // Keep the class inside a function so it doesn't get compiled if it's not used.
-    function shimMap(): { new<T>(): Map<T> } {
+    function shimMap(): { new <T>(): Map<T> } {
 
         class MapIterator<T, U extends (string | T | [string, T])> {
             private data: MapLike<T>;
@@ -103,7 +103,7 @@ namespace ts {
             }
         }
 
-        return class<T> implements Map<T> {
+        return class <T> implements Map<T> {
             private data = createDictionaryObject<T>();
             public size = 0;
 
@@ -166,8 +166,8 @@ namespace ts {
     }
 
     export const enum Comparison {
-        LessThan    = -1,
-        EqualTo     = 0,
+        LessThan = -1,
+        EqualTo = 0,
         GreaterThan = 1
     }
 
@@ -2417,13 +2417,11 @@ namespace ts {
      * Takes a string like "jquery-min.4.2.3" and returns "jquery"
      */
     export function removeMinAndVersionNumbers(fileName: string) {
-        const match = /((\w|(-(?!min)))+)(\.|-)?.*/.exec(fileName);
-        if (match) {
-            return match[1];
-        }
-        else {
-            return fileName;
-        }
+        // Match a "." or "-" followed by a version number or 'min' at the end of the name
+        const trailingMinOrVersion = /[.-]((min)|(\d+(\.\d+)*))$/;
+
+        // The "min" or version may both be present, in either order, so try applying the above twice.
+        return fileName.replace(trailingMinOrVersion, "").replace(trailingMinOrVersion, "");
     }
 
     export interface ObjectAllocator {
@@ -2627,7 +2625,7 @@ namespace ts {
         return findBestPatternMatch(patterns, _ => _, candidate);
     }
 
-    export function patternText({prefix, suffix}: Pattern): string {
+    export function patternText({ prefix, suffix }: Pattern): string {
         return `${prefix}*${suffix}`;
     }
 
@@ -2657,7 +2655,7 @@ namespace ts {
         return matchedValue;
     }
 
-    function isPatternMatch({prefix, suffix}: Pattern, candidate: string) {
+    function isPatternMatch({ prefix, suffix }: Pattern, candidate: string) {
         return candidate.length >= prefix.length + suffix.length &&
             startsWith(candidate, prefix) &&
             endsWith(candidate, suffix);