🎨 Improve tag escaping

Author: 88250

kernel/model/tag.go

@@ -308,6 +308,11 @@ func SearchTags(keyword string) (ret []string) {
 	labels := labelBlocksByKeyword(keyword)
 	keyword = strings.Join(strings.Split(keyword, " "), search.TermSep)
 	for label := range labels {
+		if "" == keyword {
+			ret = append(ret, util.EscapeHTML(label))
+			continue
+		}
+
 		_, t := search.MarkText(label, keyword, 1024, Conf.Search.CaseSensitive)
 		ret = append(ret, t)
 	}

kernel/search/mark.go

@@ -112,9 +112,15 @@ func EncloseHighlighting(text string, keywords []string, openMark, closeMark str
 	re += ")"
 	ret = util.EscapeHTML(text)
 
+	ret = strings.ReplaceAll(ret, """, "\ue000")
+	ret = strings.ReplaceAll(ret, "<", "\ue001")
+	ret = strings.ReplaceAll(ret, ">", "\ue002")
 	if reg, err := regexp.Compile(re); err == nil {
 		ret = reg.ReplaceAllStringFunc(ret, func(s string) string { return openMark + s + closeMark })
 	}
+	ret = strings.ReplaceAll(ret, "\ue000", """)
+	ret = strings.ReplaceAll(ret, "\ue001", "<")
+	ret = strings.ReplaceAll(ret, "\ue002", ">")
 
 	// 搜索结果预览包含转义符问题 Search results preview contains escape character issue https://github.com/siyuan-note/siyuan/issues/9790
 	ret = strings.ReplaceAll(ret, "\\<span", "\\\\<span")