From c021a5b919f35ff7a112bd802b094654e6a6ec40 Mon Sep 17 00:00:00 2001
From: Earl Warren <contact@earl-warren.org>
Date: Thu, 15 Feb 2024 15:56:17 +0100
Subject: [PATCH] templates: HasPrefix support for template.HTML

Refactor locale&string&template related code has .Title be
template.HTML and "Improve HTML title on repositories" needs to check
the prefix with StringUtils.HasPrefix
---
 modules/templates/util_string.go      | 11 +++++++++--
 modules/templates/util_string_test.go | 20 ++++++++++++++++++++
 2 files changed, 29 insertions(+), 2 deletions(-)
 create mode 100644 modules/templates/util_string_test.go

diff --git a/modules/templates/util_string.go b/modules/templates/util_string.go
index 2771b1e223..3f51c122b1 100644
--- a/modules/templates/util_string.go
+++ b/modules/templates/util_string.go
@@ -4,6 +4,7 @@
 package templates
 
 import (
+	"html/template"
 	"strings"
 
 	"code.gitea.io/gitea/modules/base"
@@ -17,8 +18,14 @@ func NewStringUtils() *StringUtils {
 	return &stringUtils
 }
 
-func (su *StringUtils) HasPrefix(s, prefix string) bool {
-	return strings.HasPrefix(s, prefix)
+func (su *StringUtils) HasPrefix(s any, prefix string) bool {
+	switch v := s.(type) {
+	case string:
+		return strings.HasPrefix(v, prefix)
+	case template.HTML:
+		return strings.HasPrefix(string(v), prefix)
+	}
+	return false
 }
 
 func (su *StringUtils) Contains(s, substr string) bool {
diff --git a/modules/templates/util_string_test.go b/modules/templates/util_string_test.go
new file mode 100644
index 0000000000..5844cf201d
--- /dev/null
+++ b/modules/templates/util_string_test.go
@@ -0,0 +1,20 @@
+// Copyright Earl Warren <contact@earl-warren.org>
+// SPDX-License-Identifier: MIT
+
+package templates
+
+import (
+	"html/template"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func Test_StringUtils_HasPrefix(t *testing.T) {
+	su := &StringUtils{}
+	assert.True(t, su.HasPrefix("ABC", "A"))
+	assert.False(t, su.HasPrefix("ABC", "B"))
+	assert.True(t, su.HasPrefix(template.HTML("ABC"), "A"))
+	assert.False(t, su.HasPrefix(template.HTML("ABC"), "B"))
+	assert.False(t, su.HasPrefix(123, "B"))
+}