From 4b9987b1190e38114fb4877279707ad7efb40776 Mon Sep 17 00:00:00 2001
From: Josh Holtrop <jholtrop@gmail.com>
Date: Tue, 14 Nov 2017 20:42:41 -0500
Subject: [PATCH] Fix '0' being interpreted as a count prefix instead of a
 command

---
 src/core/CommandMap.cc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/core/CommandMap.cc b/src/core/CommandMap.cc
index 7bac182..420a94e 100644
--- a/src/core/CommandMap.cc
+++ b/src/core/CommandMap.cc
@@ -72,7 +72,9 @@ uint8_t CommandMap::scan_units(
     for (size_t i = 0u; i < length; i++)
     {
         uint32_t c = command_characters[i];
-        if (gathering_count && ('0' <= c) && (c <= '9'))
+        if (gathering_count &&
+                ((('1' <= c) && (c <= '9')) ||
+                 ((c == '0') && (unit.count != 0u))))
         {
             unit.count *= 10u;
             unit.count += (c - '0');