From c5e441909777e195e70271be9e0d284d56a0e8d2 Mon Sep 17 00:00:00 2001
From: Johannes Altmanninger <aclopte@gmail.com>
Date: Tue, 10 Mar 2020 21:01:00 +0100
Subject: [PATCH] Add "--" safeguards at string length [ci skip]

---
 share/functions/edit_command_buffer.fish | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/share/functions/edit_command_buffer.fish b/share/functions/edit_command_buffer.fish
index 41dec9b63..165ff6089 100644
--- a/share/functions/edit_command_buffer.fish
+++ b/share/functions/edit_command_buffer.fish
@@ -33,8 +33,8 @@ function edit_command_buffer --description 'Edit the command buffer in an extern
     # compute cursor line/column
     set -l lines (commandline)\n
     set -l line 1
-    while test $offset -ge (string length $lines[1])
-        set offset (math $offset - (string length $lines[1]))
+    while test $offset -ge (string length -- $lines[1])
+        set offset (math $offset - (string length -- $lines[1]))
         set line (math $line + 1)
         set -e lines[1]
     end