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i18n.go
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i18n.go
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// Copyright 2014 beego Author. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Usage:
//
// import "github.com/astaxie/beego/middleware"
//
// I18N = middleware.NewLocale("conf/i18n.conf", beego.AppConfig.String("language"))
//
// more docs: http://beego.me/docs/module/i18n.md
package middleware
import (
"encoding/json"
"io/ioutil"
"os"
)
type Translation struct {
filepath string
CurrentLocal string
Locales map[string]map[string]string
}
func NewLocale(filepath string, defaultlocal string) *Translation {
file, err := os.Open(filepath)
if err != nil {
panic("open " + filepath + " err :" + err.Error())
}
data, err := ioutil.ReadAll(file)
if err != nil {
panic("read " + filepath + " err :" + err.Error())
}
i18n := make(map[string]map[string]string)
if err = json.Unmarshal(data, &i18n); err != nil {
panic("json.Unmarshal " + filepath + " err :" + err.Error())
}
return &Translation{
filepath: filepath,
CurrentLocal: defaultlocal,
Locales: i18n,
}
}
func (t *Translation) SetLocale(local string) {
t.CurrentLocal = local
}
func (t *Translation) Translate(key string, local string) string {
if local == "" {
local = t.CurrentLocal
}
if ct, ok := t.Locales[key]; ok {
if v, o := ct[local]; o {
return v
}
}
return key
}