From d698faa18366df2592f5992ace5517d366382f79 Mon Sep 17 00:00:00 2001
From: Daniel Imms <daimms@microsoft.com>
Date: Wed, 26 Dec 2018 16:12:53 -0800
Subject: [PATCH] Comment how the regex reverse search while works

---
 src/addons/search/SearchHelper.ts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/addons/search/SearchHelper.ts b/src/addons/search/SearchHelper.ts
index 756f2da7..42a3a122 100644
--- a/src/addons/search/SearchHelper.ts
+++ b/src/addons/search/SearchHelper.ts
@@ -207,6 +207,7 @@ export class SearchHelper implements ISearchHelper {
       const searchRegex = RegExp(searchTerm, 'g');
       let foundTerm: RegExpExecArray;
       if (isReverseSearch) {
+        // This loop will get the resultIndex of the _last_ regex match in the range 0..col
         while (foundTerm = searchRegex.exec(searchStringLine.slice(0, col))) {
           resultIndex = searchRegex.lastIndex - foundTerm[0].length;
           term = foundTerm[0];