From 453e6f9851eb5fbc4cf8208d2966b9df2543514d Mon Sep 17 00:00:00 2001
From: douxu <douxu@clea.com.cn>
Date: Sat, 27 Sep 2025 15:56:46 +0800
Subject: [PATCH] add GetLongestCommonPrefixLength func

---
 model/object.go | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/model/object.go b/model/object.go
index d378a59..194f16a 100644
--- a/model/object.go
+++ b/model/object.go
@@ -152,3 +152,19 @@ func getConstantsKeyByLength(inputLen int) string {
 		return constants.RedisAllGridSetKey
 	}
 }
+
+// GetLongestCommonPrefixLength define func of get longest common prefix length between two strings
+func GetLongestCommonPrefixLength(s1 string, s2 string) int {
+	// TODO 增加对特殊字符串例如 "" 的处理
+	minLen := len(s1)
+	if len(s2) < minLen {
+		minLen = len(s2)
+	}
+
+	for i := 0; i < minLen; i++ {
+		if s1[i] != s2[i] {
+			return i
+		}
+	}
+	return minLen
+}