From b72c6e99923183661e2be23d62a3d4fe7b2828dc Mon Sep 17 00:00:00 2001
From: Brandon Dyck <brandon@dyck.us>
Date: Wed, 28 Jun 2023 16:38:00 -0600
Subject: [PATCH] Parse string concatenation

---
 Parser.cs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Parser.cs b/Parser.cs
index 9db5c7b..e0efae7 100644
--- a/Parser.cs
+++ b/Parser.cs
@@ -142,7 +142,9 @@ class Parser
 
 	private Expr sum() => binaryLeft(product, TokenType.Minus, TokenType.Plus);
 
-	private Expr product() => binaryLeft(unary, TokenType.Slash, TokenType.Asterisk);
+	private Expr product() => binaryLeft(concat, TokenType.Slash, TokenType.Asterisk);
+
+	private Expr concat() => binaryLeft(unary, TokenType.PlusPlus);
 
 	private Expr unary()
 	{