tr

Easy drop-in i18n solution for Go applications.

I was looking for a real easy way to provide i18n support for my Telegram bot, for which the data is pretty much a set of 20 different text messages. I couldn't find a single solution that would utilize the file system. Here's how tr works:

1. You have to create a locales directory, e.g. $ tree lang:

   lang
   ├── en
   │   ├── hello.txt
   │   └── inner
   │       └── text.txt
   ├── fr
   │   ├── hello.txt
   │   └── inner
   │       └── text.txt
   └── ru
       ├── hello.txt
       └── inner
           └── text.html
   
   6 directories, 6 files
   

   Your files could be of any extension, it doesn't really matter, since tr ignores extensions anyway.

2. Init tr properly in your program:

   package main
   
   import (
   	"fmt"
   	"os"
   
   	"github.com/tucnak/tr"
   )
   
   func init() {
   	// tr.Init(localesDirectory, defaultLocale)
   	if err := tr.Init("lang", "en"); err != nil {
   		fmt.Println(err)
   		os.Exit(1)
   	}
   }

3. Use simple syntax for i18n:

   // Inline syntax:
   fmt.Println("In English:", tr.Lang("en").Tr("hello"))
   fmt.Println("In French:", tr.Lang("fr").Tr("hello"))
   fmt.Println("In Russian:", tr.Lang("ru").Tr("hello"))
   
   // Shadowing
   tr := tr.Lang("fr")
   fmt.Println(tr.Tr("inner/text"))

Pass an optional third true argument to tr.Init() if you wish to trim all \ns from the end of the string returned.