From 2466e73c41a3ca275c04def4b25efb606fe1bf69 Mon Sep 17 00:00:00 2001
From: Nick Schonning <nschonni@gmail.com>
Date: Sat, 25 Feb 2023 10:17:41 -0500
Subject: [PATCH] fix: allow -1 for aria-colcount

---
 schema/html5/aria.rnc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/schema/html5/aria.rnc b/schema/html5/aria.rnc
index f3ace59c4..c909c17ab 100644
--- a/schema/html5/aria.rnc
+++ b/schema/html5/aria.rnc
@@ -374,7 +374,9 @@ common.attrs.aria.implicit.navigation |= common.attrs.aria.implicit.landmark
 ## colcount
 	aria.prop.colcount =
 		attribute aria-colcount {
-			common.data.integer.positive
+			(	common.data.integer.non-negative
+                        |	string "-1"
+                        )
 		}
 
 ## colindex