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// Copyright 2022 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package i18n
import (
"fmt"
"html/template"
"slices"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
)
// This file implements the static LocaleStore that will not watch for changes
type locale struct {
store *localeStore
langName string
idxToMsgMap map[int]string // the map idx is generated by store's trKeyToIdxMap
}
var _ Locale = (*locale)(nil)
type localeStore struct {
// After initializing has finished, these fields are read-only.
langNames []string
langDescs []string
localeMap map[string]*locale
trKeyToIdxMap map[string]int
defaultLang string
}
// NewLocaleStore creates a static locale store
func NewLocaleStore() LocaleStore {
return &localeStore{localeMap: make(map[string]*locale), trKeyToIdxMap: make(map[string]int)}
}
// AddLocaleByIni adds locale by ini into the store
func (store *localeStore) AddLocaleByIni(langName, langDesc string, source, moreSource []byte) error {
if _, ok := store.localeMap[langName]; ok {
return ErrLocaleAlreadyExist
}
store.langNames = append(store.langNames, langName)
store.langDescs = append(store.langDescs, langDesc)
l := &locale{store: store, langName: langName, idxToMsgMap: make(map[int]string)}
store.localeMap[l.langName] = l
iniFile, err := setting.NewConfigProviderForLocale(source, moreSource)
if err != nil {
return fmt.Errorf("unable to load ini: %w", err)
}
for _, section := range iniFile.Sections() {
for _, key := range section.Keys() {
var trKey string
// see https://codeberg.org/forgejo/discussions/issues/104
// https://github.com/WeblateOrg/weblate/issues/10831
// for an explanation of why "common" is an alternative
if section.Name() == "" || section.Name() == "DEFAULT" || section.Name() == "common" {
trKey = key.Name()
} else {
trKey = section.Name() + "." + key.Name()
}
idx, ok := store.trKeyToIdxMap[trKey]
if !ok {
idx = len(store.trKeyToIdxMap)
store.trKeyToIdxMap[trKey] = idx
}
l.idxToMsgMap[idx] = key.Value()
}
}
return nil
}
func (store *localeStore) HasLang(langName string) bool {
_, ok := store.localeMap[langName]
return ok
}
func (store *localeStore) ListLangNameDesc() (names, desc []string) {
return store.langNames, store.langDescs
}
// SetDefaultLang sets default language as a fallback
func (store *localeStore) SetDefaultLang(lang string) {
store.defaultLang = lang
}
// Locale returns the locale for the lang or the default language
func (store *localeStore) Locale(lang string) (Locale, bool) {
l, found := store.localeMap[lang]
if !found {
var ok bool
l, ok = store.localeMap[store.defaultLang]
if !ok {
// no default - return an empty locale
l = &locale{store: store, idxToMsgMap: make(map[int]string)}
}
}
return l, found
}
func (store *localeStore) Close() error {
return nil
}
func (l *locale) TrString(trKey string, trArgs ...any) string {
format := trKey
idx, ok := l.store.trKeyToIdxMap[trKey]
found := false
if ok {
if msg, ok := l.idxToMsgMap[idx]; ok {
format = msg // use the found translation
found = true
} else if def, ok := l.store.localeMap[l.store.defaultLang]; ok {
// try to use default locale's translation
if msg, ok := def.idxToMsgMap[idx]; ok {
format = msg
found = true
}
}
}
if !found {
log.Error("Missing translation %q", trKey)
}
msg, err := Format(format, trArgs...)
if err != nil {
log.Error("Error whilst formatting %q in %s: %v", trKey, l.langName, err)
}
return msg
}
func (l *locale) TrHTML(trKey string, trArgs ...any) template.HTML {
args := slices.Clone(trArgs)
for i, v := range args {
switch v := v.(type) {
case nil, bool, int, int8, int16, int32, int64, uint, uint8, uint16, uint32, uint64, float32, float64, template.HTML:
// for most basic types (including template.HTML which is safe), just do nothing and use it
case string:
args[i] = template.HTMLEscapeString(v)
case fmt.Stringer:
args[i] = template.HTMLEscapeString(v.String())
default:
args[i] = template.HTMLEscapeString(fmt.Sprint(v))
}
}
return template.HTML(l.TrString(trKey, args...))
}
// HasKey returns whether a key is present in this locale or not
func (l *locale) HasKey(trKey string) bool {
idx, ok := l.store.trKeyToIdxMap[trKey]
if !ok {
return false
}
_, ok = l.idxToMsgMap[idx]
return ok
}
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