From bc99a9d96ba4bc70a4e06dc5d4876b82e929f3dc Mon Sep 17 00:00:00 2001
From: Raymon Zutekouw <me@raymon.dev>
Date: Sun, 26 Dec 2021 19:31:06 +0100
Subject: [PATCH] Ensure operand is optional: only 0 or 1

---
 src/grammars/mblf.pest | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/grammars/mblf.pest b/src/grammars/mblf.pest
index 54f5e6c..d5882b2 100644
--- a/src/grammars/mblf.pest
+++ b/src/grammars/mblf.pest
@@ -1,7 +1,7 @@
 operator       = @{ "operator" } // TODO
 operand        = @{ "operand" }  // TODO
 
-instruction    = { operator ~ (" "+ ~ operand)* }
+instruction    = { operator ~ (" "+ ~ operand)? }
 
 loopBlockStart = { "[" }
 loopBlockEnd   = { "]" }