From a085cc290740259d076f1e19c4b2d1002853f2b7 Mon Sep 17 00:00:00 2001
From: Zufu Liu <unknown>
Date: Sun, 17 Nov 2019 07:41:50 +1100
Subject: Feature [feature-requests:#1299] Make work for case sensitive mode.

---
 lexers/LexHTML.cxx | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'lexers/LexHTML.cxx')

diff --git a/lexers/LexHTML.cxx b/lexers/LexHTML.cxx
index 8a06e9884..7519afeb2 100644
--- a/lexers/LexHTML.cxx
+++ b/lexers/LexHTML.cxx
@@ -269,7 +269,8 @@ void classifyAttribHTML(Sci_PositionU start, Sci_PositionU end, const WordList &
 // https://html.spec.whatwg.org/multipage/custom-elements.html#custom-elements-core-concepts
 bool isHTMLCustomElement(const std::string &tag) {
 	// check valid HTML custom element name: starts with an ASCII lower alpha and contains hyphen.
-	if (tag.length() < 2 || !IsLowerCase(tag[0])) {
+	// IsUpperOrLowerCase() is used for `html.tags.case.sensitive=1`.
+	if (tag.length() < 2 || !IsUpperOrLowerCase(tag[0])) {
 		return false;
 	}
 	if (tag.find('-') == std::string::npos) {
-- 
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