regex group should be optional

highlightjs · Jan 9, 2020 · 0e09a67 · 0e09a67
1 parent 0516801
commit 0e09a67
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/languages/cpp.js b/src/languages/cpp.js
@@ -8,7 +8,7 @@ Website: https://isocpp.org
 
 function(hljs) {
   function optional(s) {
-    return '(' + s + ')?';
+    return '(?:' + s + ')?';
   }
   var DECLTYPE_AUTO_RE = 'decltype\\(auto\\)'
   var NAMESPACE_RE = '[a-zA-Z_]\\w*::'