From f98fa86318d52f6057f60a02e31066c646fb998b Mon Sep 17 00:00:00 2001
From: Nick Wellnhofer <wellnhofer@aevum.de>
Date: Fri, 22 Sep 2023 15:25:40 +0200
Subject: [PATCH] regexp: Fix status codes and handle invalid UTF-8

Reference:https://github.com/GNOME/libxml2/commit/f98fa86318d52f6057f60a02e31066c646fb998b
Conflict:only add define macros.

Fixes #561.
---
 xmlregexp.c | 74 ++++++++++++++++++++++++++++++-----------------------
 1 file changed, 42 insertions(+), 32 deletions(-)

diff --git a/xmlregexp.c b/xmlregexp.c
index 34167a5..89e2ebf 100644
--- a/xmlregexp.c
+++ b/xmlregexp.c
@@ -50,6 +50,16 @@
 
 #define MAX_PUSH 10000000
 
+/*
+ * -2 and -3 are used by xmlValidateElementType for other things.
+ */
+#define XML_REGEXP_OK               0
+#define XML_REGEXP_NOT_FOUND        (-1)
+#define XML_REGEXP_INTERNAL_ERROR   (-4)
+#define XML_REGEXP_OUT_OF_MEMORY    (-5)
+#define XML_REGEXP_INTERNAL_LIMIT   (-6)
+#define XML_REGEXP_INVALID_UTF8     (-7)
+
 #ifdef ERROR
 #undef ERROR
 #endif
-- 
2.33.0