I develop tool for balance old and new translations and decided to share with the community. If you have a full translation of the changes compared with the old is too large (ability to add new fields of translation). This tool will help to solve this problem.
GitHub: https://github.com/HiNeX/BalancerLanguagesTool
Basic useful feature list:
* Search the difference between the basic and custom translation file.
* Adding custom fields to the base translation.
How to use:
1. Copy base *.csv translation files from language pack to ./language_base/ directory without subdirectory.
2. Copy your custom *.csv translation files to ** ./language_src/** directory.
3. Go to console and execute this command:
php -f run.php
4, After you need copy *.csv files from ./language_result/ directory to ./app/local/%YourLanguage%/