From 2a3827f5f9d113bcad648b2af8f1e887df901b53 Mon Sep 17 00:00:00 2001
From: Jason Grout <jgrout6@bloomberg.net>
Date: Thu, 13 Jun 2019 09:10:22 -0700
Subject: [PATCH] Document the separator generation better.

---
 packages/filebrowser/src/crumbs.ts | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/packages/filebrowser/src/crumbs.ts b/packages/filebrowser/src/crumbs.ts
index 157c290f85d0..542677e4cbc8 100644
--- a/packages/filebrowser/src/crumbs.ts
+++ b/packages/filebrowser/src/crumbs.ts
@@ -370,7 +370,12 @@ namespace Private {
    */
   export function createCrumbSeparators(): ReadonlyArray<HTMLElement> {
     let items: HTMLElement[] = [];
-    for (let i = 0; i < 4; i++) {
+    // The maximum number of directories that will be shown in the crumbs
+    const MAX_DIRECTORIES = 2;
+
+    // Make separators for after each directory, one at the beginning, and one
+    // after a possible ellipsis.
+    for (let i = 0; i < MAX_DIRECTORIES + 2; i++) {
       let item = document.createElement('span');
       item.textContent = '/';
       items.push(item);