From 758e009cf7cf734c61432600dd7a9d3e81d3b560 Mon Sep 17 00:00:00 2001
From: TsMask <340112800@qq.com>
Date: Wed, 8 Nov 2023 16:16:32 +0800
Subject: [PATCH] =?UTF-8?q?style:=20=E9=94=99=E8=AF=AF=E4=BF=A1=E6=81=AF?=
 =?UTF-8?q?=E8=8B=B1=E6=96=87=E8=BF=94=E5=9B=9E-ctx=E6=96=87=E4=BB=B6?=
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---
 src/framework/utils/parse/parse.go | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/src/framework/utils/parse/parse.go b/src/framework/utils/parse/parse.go
index ff8145c0..93ae2d44 100644
--- a/src/framework/utils/parse/parse.go
+++ b/src/framework/utils/parse/parse.go
@@ -165,3 +165,33 @@ func Color(colorStr string) *color.RGBA {
 		A: 255, // 不透明
 	}
 }
+
+// AcceptLanguage 解析 Accept-Language 头部并返回语言标签及其对应的权重值
+// "zh-CN,zh;q=0.9,en-US;q=0.8,en;q=0.7"
+func AcceptLanguage(acceptLanguage string) string {
+	language := "en"
+	maxQ := 0.0
+	for _, tag := range strings.Split(acceptLanguage, ",") {
+		parts := strings.Split(strings.TrimSpace(tag), ";q=")
+		lang := parts[0]
+		if strings.Contains(lang, "-") {
+			langParts := strings.Split(strings.TrimSpace(lang), "-")
+			lang = langParts[0]
+		}
+		q := 0.0 // 默认权重值
+		if len(parts) > 1 {
+			// 解析权重值
+			qValue := parts[1]
+			_, err := fmt.Sscanf(qValue, "%f", &q)
+			if err != nil {
+				q = 0.0 // 若解析失败，则使用默认值
+			}
+		}
+		// 取最大
+		if q > maxQ {
+			maxQ = q
+			language = lang
+		}
+	}
+	return language
+}