From 882320c64486ae8d338750786f136ba878bd409d Mon Sep 17 00:00:00 2001
From: Caleb Krause <calebkrause1455@gmail.com>
Date: Sat, 4 Apr 2026 20:15:24 -0500
Subject: [PATCH] Fix a crash when parsing empty comments

---
 happly.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/happly.h b/happly.h
index 4ee8c71..d633f40 100644
--- a/happly.h
+++ b/happly.h
@@ -1759,6 +1759,8 @@ class PLYData {
 
       // Parse a comment
       if (startsWith(line, "comment")) {
+        // Skip the comment if it's empty
+        if (line.length() <= 8) continue;
         string comment = line.substr(8);
         if (verbose) cout << "  - Comment: " << comment << endl;
         comments.push_back(comment);
@@ -1767,6 +1769,8 @@ class PLYData {
 
       // Parse an obj_info comment
       if (startsWith(line, "obj_info")) {
+        // Skip the comment if it's empty
+        if (line.length() <= 9) continue;
         string infoComment = line.substr(9);
         if (verbose) cout << "  - obj_info: " << infoComment << endl;
         objInfoComments.push_back(infoComment);