128 lines
3.7 KiB
Go
128 lines
3.7 KiB
Go
// URTator - Urban Terror server browser and game launcher, written in
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// Go.
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//
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// Copyright (c) 2016, Stanslav N. a.k.a pztrn (or p0z1tr0n)
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// All rights reserved.
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//
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// Licensed under Terms and Conditions of GNU General Public License
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// version 3 or any higher.
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// ToDo: put full text of license here.
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// This is translator - package which translates everything in languages
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// other than en_US.
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// Available only on unixes for now, Windows version in ToDo.
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package translator
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import (
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// stdlib
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"encoding/json"
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"fmt"
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"io/ioutil"
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"path/filepath"
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"strings"
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)
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type Translator struct {
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// Currently active language.
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Language string
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// Translations.
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translations map[string]map[string]string
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// Path to translations files.
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translationsPath string
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}
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// Formats string from passed map.
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// We expect replaceable strings to be named as:
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//
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// {{ VAR }}
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//
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// We will change whole "{{ VAR }}" to params["VAR"] value. E.g.:
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//
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// data = "Version {{ version }}"
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// map = map[string]string{"version": "0.1"}
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//
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// will be formatted as:
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//
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// result = "Version 0.1"
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//
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// Also note that we will replace ALL occurences of "{{ VAR }}" within string!
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// All untranslated variables will not be touched at all.
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func (t *Translator) formatFromMap(data string, params map[string]string) string {
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new_data := data
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for k, v := range params {
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new_data = strings.Replace(new_data, "{{ " + k + " }}", v, -1)
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}
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return new_data
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}
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// Translator initialization.
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func (t *Translator) Initialize() {
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fmt.Println("Initializing translations...")
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// Initialize storages.
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t.translations = make(map[string]map[string]string)
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t.translationsPath = ""
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// Getting locale name from environment.
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// ToDo: Windows compatability. Possible reference:
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// https://github.com/cloudfoundry-attic/jibber_jabber/blob/master/jibber_jabber_windows.go
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t.detectLanguage()
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fmt.Println("Using translations for '" + t.Language + "'")
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err := t.detectTranslationsDirectory()
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if err == nil {
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t.loadTranslations()
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} else {
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fmt.Println("Skipping translations loading due to missing translations directory.")
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}
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}
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// Load translations into memory.
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func (t *Translator) loadTranslations() {
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fmt.Println("Loading translations for language " + t.Language)
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t.translations[t.Language] = make(map[string]string)
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if t.translationsPath != "" {
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files_list, _ := ioutil.ReadDir(t.translationsPath)
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if len(files_list) > 0 {
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for i := range files_list {
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// Read file.
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file_path := filepath.Join(t.translationsPath, files_list[i].Name())
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file_data, _ := ioutil.ReadFile(file_path)
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var trans map[string]string
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json.Unmarshal(file_data, &trans)
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// Assign parsed translations to language code.
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t.translations[t.Language] = trans
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}
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}
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}
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}
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// Actual translation function.
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// Parameters:
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// * str - raw string from source which we will try to translate.
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// * params - map[string]string with parameters to replace in string.
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//
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// If string wasn't found in loaded translations for current language
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// we will use English as fallback.
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// Translates passed data from loaded translations file.
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// Returns passed data without changes if translation wasn't found.
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func (t *Translator) Translate(data string, params map[string]string) string {
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val, ok := t.translations[t.Language][data]
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if !ok {
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if params != nil && len(params) > 0 {
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return t.formatFromMap(data, params)
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} else {
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return data
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}
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}
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if params != nil && len(params) > 0 {
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return t.formatFromMap(val, params)
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}
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return val
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}
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