The Incredible Merchant's Guide to the Galaxy

This is a ruby script which is a guide for any Merchant who wants to travel through the Galaxy and may need to convert their galaxy units into numerals.

How to Use It

Run bundle install to install all dependencies(bundler for more info) Then run the script on the terminal, inside this project's folder by running:

bundle exec ruby bin/merchant

You can also pass an input file as script command argument just like this:

ruby lib/merchant_on_galaxy.rb /home/any_file.txt

But please, do follow the input sample file format standards.

Design Description

• Application's is triggered on the ./bin/merchant file, which gets the console command's argument(input file).
• The entry point is: MerchantOnGalaxy class, whic is responsible to handle the entire flow.
• The FileReader class receives the file and extracts specific information from it. Also validates if file and content are valid, if not raises an error (InvalidInputError / InvalidContentError).
• Translator class receives file extracted content to generates translated information such as roman values from galaxy units and mineral value from credits sentences.
• Oracle is the one who answers the questions, with the translated info.
• As helpers, we do have the regex extractors: QuestionInfo and CreditInfo that extracts information from input file content's sentences.
• NumeralConverter is the file, inside utils folder that converts roman numeral to arabic.

Flow

• First the application receives an input file.
• Given the input file, reads it into sentences.
• Given the read lines, defines sentences as galaxy units, credits and questions.
• Given the galaxy units, credits and questions it translates it to know their arabic values.
• Given the translated info with values, it can understand(or not) to answer the questions.
• Given the answers, can output correctly.

Ping me if you need

Email: [email protected]

Skype: mauricio.voto

Simple change to test hub's PR creation