From 0fbf3020edef13092286955778da8757bce64407 Mon Sep 17 00:00:00 2001
From: Casey Rodarmor <casey@rodarmor.com>
Date: Wed, 26 May 2021 16:43:34 -0700
Subject: [PATCH] Add `$` to non-default parameter grammar (#839)

---
 GRAMMAR.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/GRAMMAR.md b/GRAMMAR.md
index ee1f4d4..298fc3e 100644
--- a/GRAMMAR.md
+++ b/GRAMMAR.md
@@ -89,7 +89,7 @@ sequence      : expression ',' sequence
 
 recipe        : '@'? NAME parameter* variadic? ':' dependency* body?
 
-parameter     : NAME
+parameter     : '$'? NAME
               | '$'? NAME '=' value
 
 variadic      : '*' parameter