From 443c8cb0f865c95578949def6fe9017ad7faaef0 Mon Sep 17 00:00:00 2001
From: Kian Kasad <kian@kasad.com>
Date: Mon, 1 Apr 2024 12:39:05 -0400
Subject: [PATCH] Don't ignore extra closing parentheses

---
 src/parser.rs | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/parser.rs b/src/parser.rs
index 2f030fe..3dfac5a 100644
--- a/src/parser.rs
+++ b/src/parser.rs
@@ -89,7 +89,13 @@ where
     ///
     /// [1]: crate::ast
     pub fn parse(mut self) -> Result<Node, ParseError> {
-        Ok(extract(self.parse_expr(0, false)?))
+        let result = extract(self.parse_expr(0, false)?);
+        if self.tokens.next().is_some() {
+            // The only case where this will happen is if the next token is a group close token
+            Err(ParseError::UnmatchedGroup)
+        } else {
+            Ok(result)
+        }
     }
 
     fn parse_expr(&mut self, min_bp: u32, accept_multi: bool) -> Result<Vec<Node>, ParseError> {