Working on content type negotiation API

utils.go

@@ -8,6 +8,7 @@ import (
 	"encoding/xml"
 	"reflect"
 	"runtime"
+	"strings"
 )
 
 type H map[string]interface{}
@@ -45,6 +46,31 @@ func filterFlags(content string) string {
 	return content
 }
 
+func readData(key string, config map[string]interface{}) interface{} {
+	data, ok := config[key]
+	if ok {
+		return data
+	}
+	data, ok = config["*.data"]
+	if !ok {
+		panic("negotiation config is invalid")
+	}
+	return data
+}
+
+func parseAccept(accept string) []string {
+	parts := strings.Split(accept, ",")
+	for i, part := range parts {
+		index := strings.IndexByte(part, ';')
+		if index >= 0 {
+			part = part[0:index]
+		}
+		part = strings.TrimSpace(part)
+		parts[i] = part
+	}
+	return parts
+}
+
 func funcName(f interface{}) string {
 	return runtime.FuncForPC(reflect.ValueOf(f).Pointer()).Name()
 }