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JSON Translator Beta

A CLI app able to automatically translate a JSON file into any language or prepare a JSON file to be translated by a human translator into any language. Can be very useful if you need to generate JSON files with different translations from one with your project's default language.

        

Features

  • Can handle any JSON file, doesn't matter how deep it's hierarchy goes.
  • Detects numbers, paths, filenames and urls and skip their translation.
  • Help included in the CLI.
  • Uses TSV (TAB separated file) files for the manual translation. These files are easily read by any spreadsheet application.
  • Can have fields that preserve their values and don't get translated

        

Prerequisites

This project requires NodeJS (version 8 or later) and NPM. Node and NPM are really easy to install. To make sure you have them available on your machine, try running the following command.

$ npm -v && node -v
6.4.1
v8.16.0

        

Installation

$ npm install -g @wstaeblein/json-translator

        

Usage and API

The app has 4 commands, plus you can execute it with no arguments or with --help to get on screen help. The commands and their arguments are explained below      

1- TRANSLATE

This command performs the automatic translation using Google Translator. The idea here is to get a fast translation without the need for a translator. It is a good idea to either revise the translation or have someone revise for you. That's why you can have your translation saved as a JSON or as a TSV.

You can also translate straight from the clipboard. Just copy ta valid JSON structure to the clipboard and run the translate command. The result will be copied to the clipboard when ready.

You'll need to pass 5 arguments as shown below, none are optional.

$ jsontrans translate ./myfile-pt.json pt en json
$ jsontrans translate clip pt en json

The first argument is the command translate, the second is either a path that points to a JSON file with it's contents in your original language, or the text clip, in which case the contents of the clipboard will be used instead of a file. From this content the translate command will generate a new file or set the clipboard with the result of the translation.

The third argument is the ISO code of the language used in file passed in the previous argument and the forth is the language you wish your file translated into. Click here to see a list of supported languages. Last but not least, the fifth argument is the output format. It can be either json or tsv.

If JSON format is chosen, a JSON file with the translation is created. This file will have same structure as the one passed but with the contents translated into your language of choice. If TSV format is chosen, a TSV file with columns for and ID (internal use), the original language and the target language are created. This way you can provide a translator with a file that is already translated and need only a revision and possible corrections, making his/her job much faster and easier, perhaps even cheaper.

When using clipboard translation the last argument has no effect. The clipboard will always accept a JSON structure to be translated and will be set with the same structure after having it's content translated.

TSV file with translation

When tsv is the format, a file with a translation is generated

The example above will translate myfile-pt.json from portuguese to english. That will generate a file in the same folder called myfile-pt-en.json. Should the name of the file be equal to it's language code, the resulting file will follow. That means that if we had a file called pt.json instead, the translated file would be en.json.

JSON keys that start with a double underscore '__' will not be translated. Instead of the translated text the field will contain the original text.

Fields that contain numbers don't get translated.      

2- PREPARE

This command prepares a JSON file to be manually translated by a human or system. You'll need to pass 4 arguments as shown below, none are optional.

$ jsontrans prepare ./myfile-pt.json pt en

The first argument is the command prepare, the second is a path that points to a JSON file with your original translation. The third argument is the ISO code of the language used in file passed in the previous argument and the forth is the language you wish your file translated into.

This command will generate a TSV file in the same folder and with the same name as the one passed, but with a tsv extension. The file will have 3 columns as follows:

  • 1- Dot notation of the field in the original JSON file.
  • 2- The field's text in the original language
  • 3- Empty column for the translation to be entered

TSV file ready to be translated

The TSV file looks like this

The idea is to give this file to a translator and instruct him/her to type the translations in the third column. Needless to say that if someone tampers with the first column this app may not be able to reassemble the JSON file from the TSV file.

You'll need the original file to create a new JSON file with the translated text. That is done in the next command.      

3- TRANSFORM

This command is used to transform a TSV file that has already been translated into a JSON file with the same structure as the file used to generate the TSV in the first place and the translated text. The TSV file must have been generated by this app.

$ jsontrans transform ./myfile.tsv /myfile.json newfilename

The 4 arguments are as follows. The first is the command transform, the second is the path to the TSV file, the third is the path to the original JSON file (the one used to create the TSV file for translation) and the last is the filename for the json file to be created.      

4- TRIM

This command just removes double underscores from a JSON file's keys. The idea being: You create a file with the original language's translation, usually your language or english. In this file you shall have keys that may not be for translation.

$ jsontrans trim ./myfile.json

     

Observations

  • In the examples folder you'll find a JSON file in english, it's translation into spanish and a TSV file ready to be translated from english to spanish. All these files were generated using this application. The first was the original file used to produce the other 2 with the translate and prepare commands respectively.
  • The TSV extension indicates tab separated files, much like CSVs but instead of commas or semicolons TABs are used to separate cells.
  • Existing files will be overwritten without warning.
  • The translator must be instructed to make changes only to the third column with the appropriate translations and nothing else.
  • The TSV files created by this app set the first line as a header. The first column is the Identificator (ID), the second the original language's ISO code and the third the target language.
  • Transform command expects the TSV file's first line to be a header and will ignored it.
  • You can open TSV files with a large number of applications, including Microsoft Excel (multiplatform) and OpenOffice Calc (multiplatform).
  • You can upload TSV files to Google Sheets to view, edit, save, and convert the files.

        

Author

Walter Staeblein

        

License

This software is made available under the Apache Licence 2.0.