From 177a634992c378ec331c95e64c7f2ddd73154e77 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fredrik=20H=C3=B8is=C3=A6ther=20Rasch?=
 <fredrik.rasch@gmail.com>
Date: Wed, 28 Jun 2017 18:03:18 +0200
Subject: [PATCH] Add safeties for alignLeft

---
 lib/pure/strutils.nim | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/pure/strutils.nim b/lib/pure/strutils.nim
index fb52a0cc07..a6bf273b37 100644
--- a/lib/pure/strutils.nim
+++ b/lib/pure/strutils.nim
@@ -1092,8 +1092,8 @@ proc alignLeft*(s: string, count: Natural, padding = ' '): string {.noSideEffect
   ##   assert alignLeft("1232", 6, '#') == "1232##"
   if s.len < count:
     result = newString(count)
-    for i in 0 ..< s.len:
-      result[i] = s[i]
+    if s.len > 0:
+      result[0 .. (s.len - 1)] = s
     for i in s.len ..< count:
       result[i] = padding
   else: