From e2480ec1ff83e6ac57d79001328568c92f4f08eb Mon Sep 17 00:00:00 2001
From: Dan Lowe <dan@tangledhelix.com>
Date: Fri, 28 Aug 2026 01:45:02 -0400
Subject: [PATCH] Don't throw errors if <!doctype line is lowercase

Fixes #28
---
 ppcomp/ppcomp.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/ppcomp/ppcomp.py b/ppcomp/ppcomp.py
index 81a4ed2..98dd695 100644
--- a/ppcomp/ppcomp.py
+++ b/ppcomp/ppcomp.py
@@ -48,7 +48,7 @@
 
   /* Add spaces around td tags */
   td::before, td::after { content: " "; }
-  
+
   /* Remove thought breaks */
   .tb { display: none; }
 
@@ -501,7 +501,7 @@ def load(self, filename):
             raise SyntaxError('Not an html file: ' + filename)
         super().load(filename)
         try:
-            if 0 <= self.text.find('<!DOCTYPE html>', 0, 100):  # limit search
+            if "<!doctype html>" in self.text[:100].lower():  # limit search
                 self.tree, errors = self.parse_html5()
             else:
                 self.tree, errors = self.parse_html()
