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/*
* Copyright (c) 2018 DeineAgentur UG https://www.deineagentur.com. All rights reserved.
* Licensed under the MIT License. See LICENSE file in the project root for full license information.
*/
package gotext
import (
"errors"
"io/ioutil"
"os"
)
// Translator interface is used by Locale and Po objects.Translator
// It contains all methods needed to parse translation sources and obtain corresponding translations.
// Also implements gob.GobEncoder/gob.DobDecoder interfaces to allow serialization of Locale objects.
type Translator interface {
ParseFile(f string)
Parse(buf []byte)
Get(str string, vars ...interface{}) string
GetN(str, plural string, n int, vars ...interface{}) string
GetC(str, ctx string, vars ...interface{}) string
GetNC(str, plural string, n int, ctx string, vars ...interface{}) string
MarshalBinary() ([]byte, error)
UnmarshalBinary([]byte) error
GetDomain() *Domain
}
// TranslatorEncoding is used as intermediary storage to encode Translator objects to Gob.
type TranslatorEncoding struct {
// Headers storage
Headers HeaderMap
// Language header
Language string
// Plural-Forms header
PluralForms string
// Parsed Plural-Forms header values
Nplurals int
Plural string
// Storage
Translations map[string]*Translation
Contexts map[string]map[string]*Translation
}
// GetTranslator is used to recover a Translator object after unmarshalling the TranslatorEncoding object.
// Internally uses a Po object as it should be switchable with Mo objects without problem.
// External Translator implementations should be able to serialize into a TranslatorEncoding object in order to
// deserialize into a Po-compatible object.
func (te *TranslatorEncoding) GetTranslator() Translator {
po := NewPo()
po.domain = NewDomain()
po.domain.Headers = te.Headers
po.domain.Language = te.Language
po.domain.PluralForms = te.PluralForms
po.domain.nplurals = te.Nplurals
po.domain.plural = te.Plural
po.domain.translations = te.Translations
po.domain.contexts = te.Contexts
return po
}
//getFileData reads a file and returns the byte slice after doing some basic sanity checking
func getFileData(f string) ([]byte, error) {
// Check if file exists
info, err := os.Stat(f)
if err != nil {
return nil, err
}
// Check that isn't a directory
if info.IsDir() {
return nil, errors.New("cannot parse a directory")
}
return ioutil.ReadFile(f)
}
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