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// Copyright 2020 ChaiShushan <chaishushan{AT}gmail.com>. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package gettext
import (
"fmt"
"sync"
)
type _Locale struct {
mutex sync.Mutex
fs FileSystem
lang string
domain string
trMap map[string]*translator
trCurrent *translator
}
var _ Gettexter = (*_Locale)(nil)
func newLocale(domain, path string, data ...interface{}) *_Locale {
if domain == "" {
domain = "default"
}
p := &_Locale{
lang: DefaultLanguage,
domain: domain,
}
if len(data) > 0 {
p.fs = NewFS(path, data[0])
} else {
p.fs = NewFS(path, nil)
}
p.syncTrMap()
return p
}
func (p *_Locale) makeTrMapKey(domain, _Locale string) string {
return domain + "_$$$_" + _Locale
}
func (p *_Locale) FileSystem() FileSystem {
return p.fs
}
func (p *_Locale) GetLanguage() string {
p.mutex.Lock()
defer p.mutex.Unlock()
return p.lang
}
func (p *_Locale) SetLanguage(lang string) Gettexter {
p.mutex.Lock()
defer p.mutex.Unlock()
if lang == "" {
lang = DefaultLanguage
}
if lang == p.lang {
return p
}
p.lang = lang
p.syncTrMap()
return p
}
func (p *_Locale) GetDomain() string {
p.mutex.Lock()
defer p.mutex.Unlock()
return p.domain
}
func (p *_Locale) SetDomain(domain string) Gettexter {
p.mutex.Lock()
defer p.mutex.Unlock()
if domain == "" || domain == p.domain {
return p
}
p.domain = domain
p.syncTrMap()
return p
}
func (p *_Locale) syncTrMap() {
p.trMap = make(map[string]*translator)
trMapKey := p.makeTrMapKey(p.domain, p.lang)
if tr, ok := p.trMap[trMapKey]; ok {
p.trCurrent = tr
return
}
// try load po file
if data, err := p.fs.LoadMessagesFile(p.domain, p.lang, ".po"); err == nil {
if tr, err := newPoTranslator(fmt.Sprintf("%s_%s.po", p.domain, p.lang), data); err == nil {
p.trMap[trMapKey] = tr
p.trCurrent = tr
return
}
}
// try load mo file
if data, err := p.fs.LoadMessagesFile(p.domain, p.lang, ".mo"); err == nil {
if tr, err := newMoTranslator(fmt.Sprintf("%s_%s.mo", p.domain, p.lang), data); err == nil {
p.trMap[trMapKey] = tr
p.trCurrent = tr
return
}
}
// try load json file
if data, err := p.fs.LoadMessagesFile(p.domain, p.lang, ".json"); err == nil {
if tr, err := newJsonTranslator(p.lang, fmt.Sprintf("%s_%s.json", p.domain, p.lang), data); err == nil {
p.trMap[trMapKey] = tr
p.trCurrent = tr
return
}
}
// no po/mo file
p.trMap[trMapKey] = nilTranslator
p.trCurrent = nilTranslator
return
}
func (p *_Locale) Gettext(msgid string) string {
p.mutex.Lock()
defer p.mutex.Unlock()
return p.trCurrent.PGettext("", msgid)
}
func (p *_Locale) PGettext(msgctxt, msgid string) string {
p.mutex.Lock()
defer p.mutex.Unlock()
return p.trCurrent.PGettext(msgctxt, msgid)
}
func (p *_Locale) NGettext(msgid, msgidPlural string, n int) string {
p.mutex.Lock()
defer p.mutex.Unlock()
return p.trCurrent.PNGettext("", msgid, msgidPlural, n)
}
func (p *_Locale) PNGettext(msgctxt, msgid, msgidPlural string, n int) string {
p.mutex.Lock()
defer p.mutex.Unlock()
return p.trCurrent.PNGettext(msgctxt, msgid, msgidPlural, n)
}
func (p *_Locale) DGettext(domain, msgid string) string {
p.mutex.Lock()
defer p.mutex.Unlock()
return p.gettext(domain, "", msgid, "", 0)
}
func (p *_Locale) DNGettext(domain, msgid, msgidPlural string, n int) string {
p.mutex.Lock()
defer p.mutex.Unlock()
return p.gettext(domain, "", msgid, msgidPlural, n)
}
func (p *_Locale) DPGettext(domain, msgctxt, msgid string) string {
p.mutex.Lock()
defer p.mutex.Unlock()
return p.gettext(domain, msgctxt, msgid, "", 0)
}
func (p *_Locale) DPNGettext(domain, msgctxt, msgid, msgidPlural string, n int) string {
p.mutex.Lock()
defer p.mutex.Unlock()
return p.gettext(domain, msgctxt, msgid, msgidPlural, n)
}
func (p *_Locale) Getdata(name string) []byte {
return p.getdata(p.domain, name)
}
func (p *_Locale) DGetdata(domain, name string) []byte {
return p.getdata(domain, name)
}
func (p *_Locale) gettext(domain, msgctxt, msgid, msgidPlural string, n int) string {
if f, ok := p.trMap[p.makeTrMapKey(domain, p.lang)]; ok {
return f.PNGettext(msgctxt, msgid, msgidPlural, n)
}
return msgid
}
func (p *_Locale) getdata(domain, name string) []byte {
if data, err := p.fs.LoadResourceFile(domain, p.lang, name); err == nil {
return data
}
if p.lang != "default" {
if data, err := p.fs.LoadResourceFile(domain, "default", name); err == nil {
return data
}
}
return nil
}
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